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Title:
DISPLAY APPARATUS AND TOOLKIT, MAINLY FOR PAPER-BASED IMAGES
Document Type and Number:
WIPO Patent Application WO/2017/098290
Kind Code:
A1
Abstract:
The invention is a display apparatus and toolkit, mainly for paper-based images. The display apparatus comprises transparent box-like housing containing image cards printed on paper sheets which are arranged in piles. When rotating the display apparatus by hand or by rotary unit the paper cards are displayed alternately cyclically in the viewing windows of the apparatus, creating cinematic effects. The image cards are changeable for several times in the apparatus. The display toolkit comprises computer application editor, for arranging the digital images into such arrangement that is fitted to the blank perforated sheet when printing.

Inventors:
BOGNAR JOZSEF (HU)
Application Number:
PCT/HU2016/000077
Publication Date:
June 15, 2017
Filing Date:
December 05, 2016
Export Citation:
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Assignee:
BOGNAR JOZSEF (HU)
International Classes:
G03B23/02; G02B27/02; G09F11/30
Foreign References:
GB668851A1952-03-26
US0582597A1897-05-11
USRE32738E1988-08-30
US2919509A1960-01-05
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Claims:
CLAIMS

1 . Display apparatus and toolkit, mainly for paper-based images, comprising a housing equipped with viewing windows, which housing contains image cards having printed images or any other visual identification means on them and are arranged in pile, and they are designed for moving relatively to each other and to the housing,

characterized in that

a, the image cards are arranged in the housing in two piles, and b, comprises image card moveable from one pile to the other pile under the combined action of gravity force and under the effect of manual rotation around the axis aligned with that common contact line between two piles that is perpendicular to the gravity direction, and c, comprises pile, movable one-layer-distance in perpendicular direction to the surface of image card, under the combined action of gravity force and under the effect of manual rotation around an imaginary axis, aligned with the common contact-line between two piles which is perpendicular to the gravity direction, and d, comprises image cards display-able cyclically repeatedly in the same order in the viewing window under the combined action of gravity force and under the effect of continues one-way rotation around an imaginary axis, aligned with that common contact line between two piles which is perpendicular to the gravity direction, and e, the display apparatus is designed for rotation operation by the hand of human.

2. Display apparatus and toolkit according to claim 1 , characterized in that, the housing, on each side has viewing window.

3. Display apparatus and toolkit according to any one of the claims 1-2, characterized in that, the image cards are placed in transparent flat envelopes.

4. Display apparatus and toolkit according to any one of the claims 1-3, characterized in that, it comprises changeable image cards.

5. Display apparatus and toolkit according to any one of the claims 1-4, characterized in that, it comprises changeable envelopes.

6. Display apparatus and toolkit according to any one of the claims 1-5, characterized in that, the outside of the envelopes has rounded surfaces which are configured such that they exclude jam of movement.

7. Display apparatus and toolkit according to any one of the claims 1 -2, and 4 characterized in that, it comprises image cards having rounded surfaces which are configured such that they exclude jam of movement.

8. Display apparatus and toolkit according to any one of claims 1 -7, characterized in that it comprises a housing, which is formed of transparent plastic sheet.

9. Display apparatus and toolkit according to any one of claims 1 -8, characterized in that the display apparatus comprises movement-blocker switch.

1 0. Display apparatus and toolkit according to any one of claims 1 -9, characterized in that the display apparatus comprises movement-blocker switch which is integrated into the housing and designed as organic part of housing box and of housing cover that are move-able relatively to each other.

1 1. Display apparatus and toolkit according to any one of claims 1 -6, and 8-10 characterized in that it comprises perforated sheets suitable for printing in conventional printer, which contains blank image cards designed for the operation, in the display apparatus.

12. Display apparatus and toolkit according to any one of claims 1 -6, and 8-10 characterized in that it comprises etiquette sheets suitable for printing in conventional printer, which contain blank image cards designed for the operation in the display apparatus.

13. Display apparatus and toolkit according to one of claims 1-6, and 8-12 characterized in that it comprises a a computerized application that is designed

- for entering of data of digital images, text fragments or other data of visual content and

- for editing, sizing and arranging images suitable for the perforated sheet and for the etiquette sheet designed for printing image cards which fit in the display apparatus.

14. Display apparatus and toolkit according to any one of claims 1-6, and 8-13 characterized in that it comprises drawing template for drawing the contour of the image cards which are suitable for operation in the display apparatus.

15. Display apparatus and toolkit according to any one of claims 1 -14, characterized in that the display apparatus comprises rotary unit.

Description:
Display apparatus and toolkit, mainly for paper-based images

The present invention relates to the type of display apparatus that can display graphics, text or other visual signals printed on sheets of paper or thin sheets made from other materials by displaying them in the order of the sheets. The device according to the invention is suitable not only for displaying images printed on the sheets but also suitable for storing album of photographs and printed images. The toolkit of the display apparatus in accordance with the present invention also provides a method for the user, to produce proper display cards to insert and play in the apparatus, using for this conventional home-printer and digital images stored on the computer or other electronic devices.

Since the second decade of the twenty-first century, billions of people in the world have mobile phones, with which at any time they can make good quality photos. Many of these people actually produce a huge number of images. Creating such images became a worldwide passion and the new word "selfie", spreading globally, was a manifestation of this activity. Most of these images typically exist only in electronic devices, and they are considered on the screens. Still, there are types of images that people are willing to print and place them in a photo album. These are the images associated with people's emotional lives, which linked to their most important persons. Like marriage, kids, relatives, and events which were connected with their great achievements. They like to show and present these photo albums to their friends.

In the information era, the book-type photo album for many people appears old-fashioned; therefore people would probably like to watch the printed images in some lively format.

Before the digital era, several inventions were created which were suitable to display images one after another. These images were printed or were fixed with photo-chemical-method on paper sheets. Such an invention is described in U.S. Patent RE32738E. This picture viewer comprises a housing member, a slider member, a bias means for urging the stack of pictures against the viewing window, and an exchange means for sequentially changing the picture that is presented at the viewing window. The exchange means comprises a retentive component to hold one picture in the housing member when the slider member is moved out of the housing.

The retentive component comprises the separator bar which pushes the remainder of the picture-stack out of the housing when the slider member is moved out of the housing.

The invention described in US Patent RE32738E is suitable for displaying paper-pictures, but its parts and its mechanisms are rather complicated. It is not suitable for the album to store pictures, so its scope is limited. The US 2919509 patent describes a device that is suitable for both displaying and storing pictures. It is suitable for storing and viewing film frames and slides. It is not suitable for paper- pictures. To view the image people have to look in through the lens, so that only one person can see the image.

Other inventions also describe display devices, but none of them has a simple structure, which also serves as a photo album.

The object of the present invention is, therefore, to provide a display apparatus and toolkit, mainly for paper-based images that are capable copy visual digital contents onto paper-based cards using for this conventional home printer and capable display attractively the printed on cards images; that has simple construction; the production cost of which can be low; that is portable; that is easily used even when it is small.

The additional goal is that the display apparatus, operated with rotary unit could be used as moving promotional tool. The especial additional goal is the changeability of the pictures, which allows using the device as an album, and also as personalized gift, and also as the promotional tool capable of showing changeable messages.

It was big challenge at finding the invention solution to fulfill several contradicting to each other requirements, like: low cost; attractive change of images; changeability for image cards; to prepare image cards at home cheaply and rapidly; to place a proper amount of image cards in the apparatus, if the size is small; to provide nice design; to prevent rearrangement of image cards when carrying the display apparatus in pocket.

The present invention is a display apparatus and toolkit, mainly for paper-based images, that comprises housing equipped with viewing windows, which housing contains image cards, that are arranged in pile, and have printed images or any other visual identification means on them, and are arranged in pile, and they are designed for moving relatively to each other and to the housing.

The present invention is characterized in that: the image cards are arranged in the housing in two piles; and the display apparatus comprises image card, moveable from one pile to the other pile; and also comprises a pile, movable one-layer-distance in perpendicular direction to the surface of image card, both move under the combined action of gravity force and under the effect of manual rotation around the axis aligned with that common contact line between two piles that is perpendicular to gravity direction.

The present invention is also characterized in that it has image cards displayable (cyclically repeatedly in the same order) in the viewing window, under the combined action of gravity force and under the effect of continues one-way rotation around an imaginary axis aligned with that common contact line between two piles which is perpendicular to the gravity direction. In accordance with the invention, it is preferable if the display apparatus has on both sides' viewing windows, and if the image cards are in transparent envelopes and the outside of the envelopes has rounded surfaces which are configured such that they exclude jam of movement.

In accordance with the invention, it is also preferable if the image cards are changeable in the apparatus.

A further advantage in accordance with the invention if the display apparatus comprises movement-blocker switch that blocks the displacement and rearrangements of the image cards during transport and during other unused periods.

According to the invention, it is convenient if the image cards can be printed on perforated-, or etiquette-paper, designed especially for this purpose with conventional home-printer, and the ready-for-printing image can be shaped and edited with an image editor application created for this purpose.

The invention will now be explained in detail referring to the attached drawings where:

- Fig. 1 is a perspective view of an embodiment of the display apparatus;

- Figs. 2A, 2B, 2C are exploded perspective views of the housing box, of the housing cover and of the image cards placed in flat envelopes, and how they are integrated into the display apparatus of Fig. 1 ;

- Fig. 3 is a perspective view of transparent housing cover ;

- Fig. 4 illustrates a sheet of paper comprising image cards having ten images printed on them, which images are drawings of numbers from one to ten;

- Figs. 5A- 5D illustrate perspective view of folding process of the image card which is shown in Figure 4 illustrating digits five and six, cut from a sheet of paper;

- Fig. 6 illustrates perspective view of an envelope made of transparent plastic sheet;

- Fig. 7 illustrates the way of inserting the image card which has digits five and six on it;

- Fig. 8 illustrates perspective view of an envelope and an image card in it;

- Fig. 9 shows the installation of the display apparatus onto the rotatory unit;

- Fig. 10 illustrates display apparatus installed on the rotatory unit in position before the start;

- Figs. 1 1A-23A show in perspective view; Figs. 1 1B-23B in schematic view, and Figs 1 1 C-23C show during the operation the changing of arrangements of image cards in the display apparatus;

- Figs. 24-33 schematically illustrate in operation the change of arrangements of image cards in display apparatus during a complete playing cycle;

- Fig. 34 schematically shows the first arrangement of image cards during the repetition of the playing cycle; - Fig. 35 illustrates in perspective view the operation by hand of the display apparatus;

- Fig. 36 shows in perspective view the housing, the housing box and the housing cover of an embodiment of the invention which is formed of transparent plastic sheet and comprises movement- blocker switch;

- Figs. 37A, 37B projection views and the 37C enlarged illustration and the 37D perspective view show the display apparatus in a position when the movement-blocker switch permits the operation of the device;

- Figs. 38 A, 38B projection views and the 38C enlarged illustration and the 38D perspective view show the display apparatus in a position when the movement-blocker switch blocks the operation of the device;

- Fig. 39A illustrates blank perforated paper before printing and Fig. 39B after printing the image;

- Fig. 40A illustrates blank etiquette-paper before printing and Fig. 40B after printing the image;

- Fig. 41 illustrates the printed sheet of etiquette, from which one etiquette tile has already been removed;

- Figs. 42A-42D illustrate the removed etiquette tile and the folding phase diagrams;

- Figs. 43A-43D illustrate when drawing around a freehand picture using a drawing-template, cutting it out and inserting it into the envelope;

- Fig. 44 illustrates in perspective view image cards which have rounded surfaces;

- Figs. 45A-45D illustrate preparation steps of the image cards having rounded surface;

- Fig. 46 illustrates fold-able housing in perspective view, when it is open;

- Fig. 47 illustrates during operation a display apparatus having fold-able housing;

In the detailed description of the invention there are illustrations of specific exemplary embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. However, other embodiments may be utilized and changes of shape, of scale, of construction and other types of changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense.

The present invention provides a display apparatus for displaying images and other visual signs which are on a sheet of paper or on other sheet made from other material, which is also suitable to store pictures as an album and can also be used as a promotional tool and as a gift.

The invention will be explained in detail by examples of embodiments.

Figure 1 illustrates a perspective view of the display apparatus 100 according to a preferred embodiment. Exploded perspective views of this embodiment are shown in Figures 2A, 2B, 2C. One of the components of the display apparatus 100 is the housing 200 made of transparent material. The transparency of the housing serves as windows on both sides of the display apparatus 100. In this embodiment, display apparatus 100 comprises two parts, the housing box 201 and the housing cover 202, as it is shown in Figure 2A. The housing cover 202 is shown separately in Figure 3. The black arrow in the Figure 2B illustrates that the housing cover 202 can be slid onto the housing box 201. The housing 200 can be closed in this way.

The display apparatus 100 of the present invention is suitable to use with images which are printed at home conditions. The images may be configured for the specific purpose, in order to make them also under home conditions. Pictures (image cards) made according to such special method are the part of the display apparatus and toolkit invention. In the present specification, to follow the explanation easier, the invention is shown with images which are photos of digits. Figure 4 shows a conventional sheet of paper with ten photos on it, printed with a computer. The ten photos show images of digits from one to ten. These ten images will be inserted into display apparatus 100 after being cut off with scissors from a paper sheet. We identify in this specification the small image-sheets suitable to use in the display apparatus 100 as image cards 4. Figures 5A- 5D illustrate the folding process of the image card 4 on which drawings of digits five and six are shown. In this example, there are two images in a folded image card 4, but this is not necessary. It is equally appropriate if there are two images being on two separate image cards 4, that means two images on two separate small sheets, which will be inserted into a common envelope 6. Figure 6 illustrates envelope 6 formed by bending of transparent plastic sheet.

The image cards 4 are placed in such envelopes 6 in the display apparatus 100. In Figure 7 a black arrow shows the inserting of the image card 4 into the envelope 6. The envelopes 6 have rounded surfaces 7, in order to not be able to meet with each other's edges to get stuck in being moved. Figure 8 illustrates the envelope 6 with the image card 4 numbered with digit five therein. Figure 2C is an exploded perspective view showing how the image cards 4 are arranged in display apparatus 100. Envelopes 6 in Figures are shown for better illustration less flat than they actually are. Therefore, the display apparatus 100 is in reality much flatter, more compact, as it is shown in the Figures. It can be seen in Figures 1 and 2C that image cards 4 and they envelopes 6 in display apparatus 100 are arranged in two piles, pile 51 and pile 52. Figure 1 shows that the display apparatus 100 includes one less envelope 6 than we could fit in it. This empty space enables rearrange envelopes 6 in the housing 200.

The operation of the display apparatus 100 according to the present invention is made by human hand, but it can also be carried out using rotary unit 8. Figure 9 shows the installation of display apparatus 100 on the electrical rotatory unit 8 towards the direction of the black arrow. Figure 10 illustrates display apparatus 100 installed on the rotatory unit 8 before launching. At operation, during the whole rotation process, we should strive to keep the imaginary axis 14 of the rotation in contact line between two piles 51 , 52, and at the same time to keep in the perpendicular direction relatively to the gravity direction 13. With manual rotation may have some differences from this direction, but this is the ideal rotation axis of the operation.

In the case of mechanical rotation, the imaginary axis 14 of the rotation coincides with the physical axis of the rotary machine 8; in our example the black arrow on Figure 9. The direction of the gravity 13 and the relative position of the imaginary axis 14 of the rotation are also illustrated in the Figure 12C.

Series of figures 1 1A to 23 A and 1 1B-23B and 1 1C-23C illustrate the change of the arrangement of the image cards 4 in display apparatus 100, during operation.

Figures 1 1A-23A illustrate in perspective view the display apparatus 100, roughly from the direction of the rotation axis. Figures 1 1B-23B schematically show from the exact direction of the axis of rotation the instantaneous arrangement of the image cards 4 in display apparatus 100.

Figures 1 1C-23C schematically illustrate the perspective view of the display apparatus 100 from the direction of the white straight arrow. User (the live observer) looks at the device from the direction of the straight white arrow, that is, he sees images in accordance Figures 1 1C-23C.

Figures 1 1 A, 1 I B, 1 1C illustrate the moment right after the start when the rotary disc of the rotary machine 8 has rotated just about only ten degrees since its start. Here the image cards 4 in display apparatus 100 are in their original arrangement. Figures 12 A, 12B, 12C illustrate a position of roughly twenty degrees rotation, when the image cards 4 in the display apparatus 100, are still in their original arrangement. Figures 13A, 13B, 13C show the situation roughly at twenty-five degrees rotation when the image card 4 having digit number one on it, is already sliding down from the pile 51 to pile 52. This sliding-down process is shown on the Figures 13 A, 13B, 13C with a straight black arrow. When the display apparatus 100 has such degree of inclination, then the effect of gravity is stronger, than the retaining effect of the frictional force.

In the period of time illustrated in Figures 14A-16A, 14B-16B, 14C-16C, display apparatus 100 is rotating to the vertical position, and by the end of this period, the image card 4, which has digit number one on it, slips to the bottom position. On Figures 14A, -15A, 14B, and 14C -15B, - 15C straight black arrow indicates the movements of the image card 4, having number one. After the moment of vertical position, that is after the Figures 16A, 16B, 16C, the even numbered side of the display apparatus 100 will be visible, from the direction of the axis of rotation. The live observer, from the direction of the white arrow, still sees the odd number side, until the situation, shown on Figures 20A, 20B, 20C. Starting at Figures 17A, 17B, 17C, the display apparatus 100, starts to lean towards the live observer. At the moment, that is illustrated in Figures 19A, 19B, 19C, the upper pile 51 , that is placed in display apparatus 100, which contains only two envelopes 6 at this moment, moves down one layer, under the influence of gravity, towards the odd numbered side of display apparatus 100. In Figures 19A, 19B and 20B, the displacement of the pile 51 is illustrated with a straight black arrow.

After each one hundred and eighty degree turn, one envelope 6 slips into the other pile, and also, after each one hundred and eighty degree turn, the pile (51 ) which contains fewer pieces envelopes 6 than the other pile (52), moves in the housing 200, a distance of thickness of an envelope 6 (ie, a single layer of distance) into the direction, that is perpendicular to the surface of envelope 6 and of the image cards 4. The latter is seen in Figures 19A, 19B, and 20B.

Starting from Figures 21 A, 2 IB, 21C, the live observer sees in the direction of the white arrow the even-numbered side of display apparatus 100. Figures 22A, 22B, 22C illustrate the moment when the image card 4, having digit number ten, under the influence of gravity slips down, which is indicated in the figures with a black arrow.

It was described according to series of Figures 1 1A-23A, 1 1B-23B and 1 1 C-23C, that during the continuous rotation, the image cards 4 in the display apparatus 100 were rearranging according to a certain algorithm, under the influence of gravity force, having changing direction relatively to the movement. During sufficiently long rotation, the images in the display apparatus 100, are repeated cyclically. In the following, we will show what arrangements are created after the phases shown in Figures 1 1A-23A, when the rotation of the display apparatus 100 is continued until one cycle is completed. In the series of Figures 24-33, a complete cycle of changes is shown. These Figures show the moments of the cycle of change when the display apparatus 100 is always just in vertical position. The previously described rotation stage showed already two such positions which were illustrated in Figures 16A, 16B, 16C, and Figures 23 A, 23B, 23C. These two states were repeated in Figures 24 and 25 because the cycle was already started during the examined earlier section shown in earlier Figures. The whole cycle will create ten different consecutive arrangements.

During this cycle, all ten image cards marked with ten digits, appear two times before the eyes of the user. For the first time always on the upper part of the display apparatus 100. Then, after three hundred and sixty -degree rotation, it appears again on the lower part of the display apparatus 100. The last step of the cycle is shown in Figure 33, because at one hundred and eighty -degree rotation later we see again digit numbers three and one, that are identical with that we saw in Figure 24 which was the first image of the cycle we observed. Figure 34 already illustrates the first image of the next cycle.

Due to the rotation of the display apparatus 100, the odd side appears once in the user's face, and another time, after one hundred and eighty degrees of rotation, the even-numbered side. The downward movement and the way of changing images, create, partly movie effect, and partly, they remind of the activity of a user of a tablet, who is moving series of images on the screen "sweeping" with his finger. As a result, the picture-viewing activity with a display apparatus of the present invention evokes visual memory, reminding the modern mobile digital devices.

Figure 35 shows that the display apparatus 100 can be operated by human hands. In this case, we keep the apparatus in both hands in front of us, and we continuously rotate the display apparatus, when we also constantly tilt the upper part of the apparatus towards ourselves. In this case, there is exactly what has been described in use of the rotary unit 8. During manual rotation, we see the same arrangements of the image cards 4 that were illustrated in Figures 1 1C-23C.

Another preferred example of the embodiment of the display apparatus and toolkit is illustrated in Figures 36-38 that comprises movement-blocker switch 9. The movement-blocker switch 9 is designed to prevent the movement and the spontaneous rearrangement in the display apparatus 100 of envelopes 6, during transportation or when carrying the display apparatus 100 in the pocket. For further role is to function as a bookmark, by fixing the display apparatus 100, in the last viewed position.

Figure 36 shows (without envelopes 6 and image cards 4) in perspective view, the housing formed of sheet 210, the housing box 201 and the housing cover 202 of the display apparatus 100 formed of transparent sheet. In Figure 36 the thick arrow illustrates that the housing cover 202 can be slid onto the housing box 201. The housing box 201 through thermo-forming and bending can be manufactured inexpensively. A movement-blocker switch 9 is configured as integrated part of thermoformed housing box 21 1 and of housing cover 202. In this embodiment, the movement- blocker switch 9 is realized of several parts: of housing box 201 , of housing cover 202, the perforated hole 220 formed on housing box 201 , the wart 230 formed on housing cover 202.

Figures 37A-38D show projection view, enlarged illustration, and perspective view of that display apparatus 100 (together with envelopes 6, and images-cards 4 in it) which was shown in the Figure 36. Using these Figures we will explain how the movement-blocker switch 9 acts in this embodiment.

Figures 37A- 37C and the 37D show the display apparatus 100 in such a position, when the movement of envelopes 6 is not blocked in the apparatus. In this case, the housing cover 202 is pushed in the curved edge 212 of the housing box 201 , up to a position where the wart 230 on the housing cover 202 is located just inside the perforated hole 220, formed on the housing box 201. In this position the housing cover 202 is not pushed up to it stops, but it is located on "e" distance from the collision-position. We illustrated the distance "e" in the Figures with letter "e" written between size-lines.

Figures 38A-38C and 38D show the display apparatus 100 in position, when the movement of the envelopes 6 is blocked. In this case, the housing cover 202 is pushed in the curved edge 212 of the housing box 201 up to it stops. Then the distance between the housing cover 202 and the curved edge of the housing box 201 is f=0 (approximately zero), more exactly it is equal with the sheet-thickness.

The Figures 38A-38C and 38D show that, at this position of the housing cover 202, the wart 230 is in the housing box 201 , in the surroundings of image cards 4, and it prevents the transition of the envelope 6 of image card 4 number one, from pile 51 to pile 52, above the envelope 6 of image card 4 number five. Which also means that the wart 230 in this place, fully prevents any movement of the envelope 6 of the display apparatus 100.

In contrast, in the case of the position of the housing cover 202 shown in Figures 37A-37C and 37D, the wart 230 is here in the perforated hole 220 formed on the housing box 201, so it is out of the surroundings of image cards 4, therefore the wart 230 does not block here the movement of the envelopes 6. For easier comprehension of Figures, we illustrated the contour of the housing cover 202 and of the wart 230 on it, with thicker lines.

It can be seen, that the movement of envelopes 6 can be blocked with "e"-size changing of the position of the housing cover 202 (shifting on the housing box 201); and with shifting in opposite direction, it can be provided. In this case, the housing box 201 and the housing cover 202 are functioning as movement-blocker switch 9 (of shift-type).

Above it follows that in this embodiment, the housing 200 formed of two parts, adapted to perform two different tasks. It serves not only as a box incorporating the envelopes 6 and the image cards 4 in them, but at the same time as a movement-blocker switch 9 of the display apparatus 100 (incorporated into the housing). This solution is more cost-effective, and easier to handle by the user, when compared to the movement-blocker switch 9 would be formed as a separate unit.

The image cards 4 are a component of the display apparatus 100. The image cards 4 can be photos printed on paper; drawings made by hand on a sheet of paper; or cut out pages from magazines that represent images or text. According to the scope of the invention, any two- dimensional (in functional term) sheet-type "object" on which some visual content can be observed by the user, and that can be placed into the envelope, and can be operated, should be considered as image card 4. For example, a theater ticket that reminds to somebody a great theatre play, or a memorable leaf, may also serve as an image card 4.

When creating the display-apparatus 100 and toolkit of the invention, it was primary target that the user would be able to make at home paper pictures of his/her digital photos. Figures 4-8 show, that this, for example, can be implemented in such a way that the user prints (even on standard office paper) the selected images, that are edited for proper size, cuts out them with scissors, and then puts them in envelops 6, and inserts the filled envelopes 6 into the display apparatus 100.

Because of the need of making better implementation at home, the toolkit of the display apparatus 100 contains a method of making, at home conditions, by the user, proper image cards 4, based on the digital images.

It makes it convenient to use the toolkit of the display apparatus 100, if we use image editing application software, specifically adapted for editing the size of our images, before we print them. The software is designed so that the digital images, parts of texts or other visual data, taken from smartphones or computers, can be put, with„drag and drop" or other importing methods, into this application. From these data, the application prepares, for the user, an assembly of images, for printing, which contains all imported images, in an arrangement and of size, required by the perforation- and etiquette sheet sections (which will be described later). According to the invention, the software also allows the user to put captions, to write personal text on the pictures. Completely similar duties exist widely at etiquette computer-editing applications, therefore creating such software is a routine task, that can be solved easily by IT professionals. According to the invention, another solution also is possible when the software is not downloaded to the user's electronic device, but can be used as an online service available on the Internet. In this case, the user will upload or send in e-mail his/her photos to the online provider, from whom he gets back the photos in a single collage-like image with a size-aligned, and in proper arrangement of printing.

Very impressive selfie gift can be made, when using this easy to use photo editing application, together with the display apparatus 100 of the invention, and our own digital photos. This is a significant property of the display apparatus of the invention because the user's popular photos in it can be handed (like a nice book-gift), as a personal present to friends and relatives. The photo that exists only in digital format, is considered a mass product and therefore not suitable for a real gift.

A further preferred solution is, using computer edited images, printed on a sheet, which does not require cutting the image cards with scissors. According to the invention, an embodiment of this solution is, when we print the images on a perforated paper sheet (preferably of A4 standard size) having perforation lines around the images, that are printed by the processing software of the invention. After printing, simply tear off the images along the perforation line, and insert the images into the display apparatus 100. Figure 39A shows the perforated sheet 10 and eight blank image cards 41 , incorporated in the perforation area, and in Figure 39B, we see after the printing the same perforated sheet 10, incorporating eight image cards 4, still before the extraction condition.

Another embodiment of the invention described with reference to Figures 40A-42D. Here the images are printed not on perforated but on etiquette sheet 1 1. Figure 40A shows how the etiquette sheet 1 1 looks before printing, and Figure 40B shows it after the printing. This etiquette sheet 1 1 similarly with the usual etiquette sheets is a two-layer tiles etiquette. The upper sheet-layer, which is for printing, is coated with an adhesive layer, the lower sheet-layer is coated with silicone for ease of separation. The top layer (which serves for printing) is cut into rectangular pieces of printing needs. The etiquette sheet 1 1 according to the invention, differs from the conventional etiquette sheet, in that, a part of the cuts in the top layer is not a continuous cutting, but perforated. The perforated cutting is in the places, where the neighboring rectangular parts are not separated but folded. In the case of etiquette sheet 1 1 , we insert into the envelope 6 a small sheet, folded in the middle, having one image on both sides, instead of two separated image cards 4, like in the case of the perforated sheet. This folded etiquette tile only differs from the one described earlier with reference to Figures 5A-5D, that the folded two parts here are glued together. In Figures 41 and 42A can be seen, that we strip off, take off the five and six numbered image cards 4, from the A4 sheet of printed etiquette. These two cards with pictures are not separated, but this is a common sheet of paper with a center cut line of perforations. The opposite side (relatively to the printed side) is glued as this is etiquette sheet. Figures 42B-42D show how to fold the small sheet along the perforation line. The 42D Figure represents the final state of the folding operation when sticking together two halves of the small sheet. Does not remain adhesive surface outside, therefore the image card 4 marked with five-six numbers inserted in the envelope 6 can be replaced later, on another image card.

According to the invention not only printed images may be used as an image card 4, but for example, drawings made on paper by children. Figures 43A-43D illustrate steps: drawing with hand, and with a drawing-template 12, around the border of a freehand picture; cutting around; and inserting into envelope 6. According to the invention, the drawing-template 12 illustrated in Figure

43B also is part of the display apparatus toolkit system, which is one of the possible tools of making the image cards 4 insert-able into the display apparatus. Figure 43A illustrates children's drawing on a sheet of paper. Figure 43B shows drawing- template 12 representing part of display apparatus toolkit 100, that is suitable to draw a frame (having the size equal to the size of image cards 4) around this drawing. In Figure 43C shown the image card 4 after drawing around and cutting out with scissors; the insertion into the envelope 6 is shown in Figure 43D. Effective and inexpensive advertising device can be made according to the solution of the invention. At many of these advertising tools, such as city-souvenir, or promotion tool is not necessary to use changeable image cards 4. If there is no need to change the image cards 4, then there is no need to use open-able display apparatus 100, and there is no need necessarily to have envelopes 6 for carrying the image cards 4. The invention is described in such exemplary embodiment with reference to Figures 44 - 45D. The envelopes 6 in the preceding examples were designed providing movement in display apparatus 100 without a jam. This was partly due to the outside form of the envelopes 6, having rounded surface 7 excluding jam of movement; and due to that, the thickness of envelopes 6 has been determined based on the proper height of the housing 200, and on the number of layers of piles 50-52. The thickness of the envelope 6 had to be chosen, that the movement of envelopes was not pressed nor wedged. It follows that the envelopes 6 may be omitted if the image cards 4 have rounded surfaces 7 which are configured such that they exclude jam of movement, and their thickness is adjusted according to the height of the housing 200 and the number of layers in the piles 50, 51. Such image cards 4 having rounded surfaces 7 can be prepared by several manufacturing methods, of the variety of materials, and of shapes, according to the invention. Design and preparation method of such image card 4 will be described with reference to Figures 44-45D.

Figure 44 illustrates image cards 4 of the same arrangement as cards in envelopes 6 in the Figure 2C, having rounded surface 7 excluding jam of movement. At the present embodiment, the image cards 4, 43 have rounded surface 7 just on one side. This is so for ease of manufacturability. The envelopes 6 previously discussed had rounding on their both opposite long sides. For each image card 4, just one rounded surface 7 is enough, in case, if each card is inserted into the housing 200, in the way, that their rounded sides look to the same direction. In this case, one of two adjacent long sides, of neighboring image cards 4, is always a rounded one, towards its neighboring card- side. One of the possible ways to prepare image cards 4 having rounded surfaces 7 that is shown in Figure 44, is described with reference to Figures 45A-45D. This is also double-layered, similarly to etiquette sheet in Figure 41. The inside of the upper, printed sheet layer, is coated with an adhesive layer, the inner side of the lower sheet layer is silicone-coated for ease of separation. Here is also images have been printed on the top sheet. Concerning these qualities they match with the etiquette sheet in Figure 41 , but concerning the following quality differs. Here, the top sheet is not a thin sheet of paper, but a thick and rigid sheet, such as playing cards, which may not only be paper, but also the plastic material. When planning the upper rigid sheet thickness size, then the size of the thickness of housing 200 (its height), and the number of image cards 43 having rounded surfaces, should be taken account. This is not a perforated cut, which is in the halfway line of the cut-out rectangles, but flexion cutting, which allows making folded cylindrical surface without any sharp edge. Figures 45B-45D illustrate the folding phases of image card 4, 43, after being separated off from etiquette sheet. Figure 45D illustrate a ready-made completely folded rounded image card 43, inside of which the folded adhesive surfaces are stuck to each other.

A further embodiment of the invention is described based on Figures 46-47, which can be manufactured at low cost with the high production run. At this embodiment, the housing 200 of the display apparatus 100 is foldable and can be produced even of transparent plastic by injection molding. Figure 46 illustrates collapsible housing 203, in open position that can be folded for closing.

After inserting the envelope 6 (that contains image cards 4) into the housing, the collapsible housing 203 can be folded along the bending bar 260 and it can be closed with pressing together the press-stud cavity 250 and the press-stud extension 240. The complete display apparatus 100 is illustrated in Figure 47 during operation. Opening tiles 270 serve for opening the apparatus.

As the above description, the display apparatus 100 according to the invention, builds on the technical achievements of the twenty-first century, such as the everyday activity of digital photography; the smartphone, computer and home printer; and the new habit, that the average mass of people make multitude of digital images about themselves and their environment, which they are happy to share with each other. The display apparatus 100 according to the invention is adapted to provide people to give to each other (as a gift) their personal photos made with smart phones, and packed in a cost-effective apparatus, that works surprisingly.

The invention was described on the basis of exemplary embodiments, but other embodiments also can be realized according to the present invention. In the description of housing 200 and of its envelope 6 of the invention, for example, thermoformed and bent sheet variations were shown, because in the case of such technology even at small series, the production cost is very low. However, there are many other methods available for manufacturing the components of the display apparatus system, such as the housing injection molding, extrusion of the envelope, which also can be economical for a given batch size. In addition, may be made changes like shapes, ratios or structure of design, and other types, without having to go beyond the scope of the present invention. LIST OF COMPONENTS

100 display apparatus

200 housing

201 housing box

202 housing cover

203 collapsible housing

210 housing formed of sheet

21 1 thermoformed housing box

212 curved edge

220 perforated hole

230 wart

240 press-stud extension

250 press-stud cavity

260 bending bar

270 opening tab

4 image card

41 blank image card

43 rounded image card

51 , 52 pile

6 envelope

7 rounded surface

8 rotary unit

9 movement-blocker switch

10 perforated sheet

1 1 etiquette sheet

12 drawing template

13 gravity direction

14 imaginary axis