Title:
LIGHT GUIDE PLATE AND DISPLAY MODULE HAVING TRANSMISSIVE PART, AND GAME MACHINE HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2021/235720
Kind Code:
A1
Abstract:
The present invention relates to a light guide plate comprising a plurality of cutting areas, the light guide plate capable of solving the problem of brightness degradation between the plurality of cutting areas by attaching a predetermined member, which is reactive to light, to at least one of the inner sides of the cutting areas. Particularly, the present invention allows the light guide plate to evenly transmit light generated from a light source to the forward side part, by selecting and attaching, to the respective inner side of the plurality of cutting areas, a first member for resolving brightness degradation of the light or a second member for resolving brightness degradation of the light and offsetting excessively reflected light. The present invention relates to the light guide plate comprising at least one cutting area, the light guide plate maintaining the clarity of a display screen by treating (for example, etching or attaching a diffuser sheet) at least one of the inner sides through which light transmitted from a light-emitting part provided on the outer side of the light guide plate passes, so as to remove hot spots generated when the light passes through. The present invention can enable a user to focus on a game by solving the problem of a relatively darker cutting area through which a reel positioned on the backside of the display is seen.
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Inventors:
OH CHANG MIN (KR)
Application Number:
PCT/KR2021/005345
Publication Date:
November 25, 2021
Filing Date:
April 28, 2021
Export Citation:
Assignee:
TOVIS CO LTD (KR)
International Classes:
F21V8/00; G02F1/13357
Foreign References:
| JP2005058754A | 2005-03-10 | |||
| KR20200020241A | 2020-02-26 | |||
| JP2005152581A | 2005-06-16 | |||
| JP2005185826A | 2005-07-14 | |||
| KR20110045766A | 2011-05-04 |
Attorney, Agent or Firm:
DOOSUNG PATENT LAW FIRM (KR)
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