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Patent Searching and Data


Title:
LIGHT GUIDE PLATE, BACKLIGHT MODULE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/019033
Kind Code:
A1
Abstract:
A light guide plate, comprising: a first light exiting surface (1) and a second light exiting surface (2) which are connected by a bevel surface (4); the first light exiting surface (1) is connected to a light entering surface (3) of the light guide plate, and is arranged higher than the second light exiting surface (2); the bevel surface (4) is provided with a protruding structure (5). A portion of the light incident on the bevel surface (4) is reflected back to the light guide plate by the protruding structure (5), and is reflected back and forth between the bevel surface (4) and a bottom surface of the light guide plate, so as to be fully mixed and homogenized; a portion of the homogenized light exits from the second light-exiting surface (2), compensating for a longitudinal shade difference; the other portion of the homogenized light exits from the protruding structure (5) on the bevel surface (4) and from the first light exiting surface (1), thereby reducing a horizontal shade difference. Thus, the present invention is able reduce occurrences of sub-par user experience, such as dazzling, and improve the viewing results.

Inventors:
MA, Yongda (No.9 Dize Road, BDA, Beijing 6, 100176, CN)
XIAN, Jianbo (No.9 Dize Road, BDA, Beijing 6, 100176, CN)
QIAO, Yong (No.9 Dize Road, BDA, Beijing 6, 100176, CN)
Application Number:
CN2017/087643
Publication Date:
February 01, 2018
Filing Date:
June 09, 2017
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO., LTD. (No.10 Jiuxianqiao Road, Chaoyang District, Beijing 5, 100015, CN)
International Classes:
G02B6/00; F21S8/00
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (22/F, Great Eagle Centre23 Harbour Road, Wanchai, Hong Kong, Kong, CN)
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