Title:
LIGHT GUIDE PLATE, BACKLIGHT MODULE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/109140
Kind Code:
A1
Abstract:
A light guide plate (100), a backlight module, and a display device. The light guide plate (100) comprises: a light incident surface (110); a light emergent surface (120) connected to the light incident surface (110); and a bottom surface (130) arranged opposite the light emergent surface (120). The bottom surface (130) comprises a first region (S region) and a second region (P region) which are sequentially arranged in a direction away from the light incident surface (110). The distance from any point in the first region (S region) to the light incident surface (110) is less than the distance from any point in the second region (P region) to the light incident surface (110). A plurality of first light guide points (140) and a plurality of second light guide points (150) are provided in the first region (S region). A plurality of first light guide points (140) are provided in the second region (P region). The first light guide points (140) have first reflective surfaces (141) facing the light incident surface (110). Included angles between the first reflective surfaces (141) and the bottom surface (130) are first included angles (α1). The second light guide points (150) have second reflective surfaces (151) facing the light incident surface (110). Included angles between the second reflective surfaces (151) and the bottom surface (130) are second included angles (α2). The first included angles (α1) and the second included angles (α2) are less than or equal to 5°. Furthermore, the first included angles (α1) are smaller than the second included angles (α2). The light guide plate (100) can achieve narrow viewing angle display without affecting light-emitting uniformity.
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Inventors:
FANG ZONGBAO (CN)
FANG HUI (CN)
ZHANG HENG (CN)
FANG HUI (CN)
ZHANG HENG (CN)
Application Number:
PCT/CN2023/109565
Publication Date:
May 30, 2024
Filing Date:
July 27, 2023
Export Citation:
Assignee:
NICROTEK CO LTD (CN)
UNIV SOOCHOW (CN)
NANJINGUNIVERSITY (CN)
UNIV SOOCHOW (CN)
NANJINGUNIVERSITY (CN)
International Classes:
G02F1/13357
Foreign References:
| CN219085171U | 2023-05-26 | |||
| CN216748370U | 2022-06-14 | |||
| CN110967787A | 2020-04-07 | |||
| CN111176016A | 2020-05-19 | |||
| US20050286854A1 | 2005-12-29 | |||
| US20210405452A1 | 2021-12-30 |
Attorney, Agent or Firm:
HERUN-KESHENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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