Title:
COLOR FILTER SUBSTRATE WITH MICROLENSES
Document Type and Number:
Japanese Patent JP3900626
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the color filter substrate having microlenses, in which an optical utilization rate is made higher, and to improve the display quality of a picture display device by making the shapes of the microlenses that constitute of a microlens layer into flat looking square or approximate square shapes.
SOLUTION: Microlenses 2, which constitute of a microlens layer, are made into flat looking square or approximate square shapes. For example, two square microlenses are formed for every colored pixel 4 in its longitudinal direction on a color filter substrate 1 having the microlenses. Moreover, Mx, which is defined as one side of the square microlens 2, is set by an equation Mx=(Bx-2 S) where S is the distance from the edge of the pixel 4 to the microlens 4 and Bx is shown in the figure. Thus, the curveture difference of the lens surface is made smaller compared with the rectangular microlens which is conventionally formed.
Inventors:
Ishimatsu Tadashi
Satoshi Kitamura
Osamu Koga
Satoshi Kitamura
Osamu Koga
Application Number:
JP30733397A
Publication Date:
April 04, 2007
Filing Date:
November 10, 1997
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
G02F1/1333; G02F1/1335; G02B3/00; (IPC1-7): G02F1/1335; G02F1/1335; G02B3/00; G02F1/1333
Domestic Patent References:
| JP9218400A | ||||
| JP7199188A | ||||
| JP4240616A | ||||
| JP4036701A | ||||
| JP8271720A | ||||
| JP8179307A |