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Patent Searching and Data


Title:
DISPLAY APPARATUS AND BACKLIGHT MODULE THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/119891
Kind Code:
A1
Abstract:
A backlight module (10, 30, 40) and a display apparatus (200) thereof. The backlight module (10, 30, 40) comprises: A light guide plate (13, 23, 33, 43), of which a side portion comprises a light incident face (131, 231, 331, 431); a lamp bar (11, 21, 31, 41), which comprises a circuit board (111, 211, 311, 411) and a plurality of photoelectric elements (112, 212, 312, 412) connected onto the circuit board (111, 211, 311, 411), the circuit board (111, 211, 311, 411) comprising a separation portion (113, 213) located between two adjacent photoelectric elements (112, 212, 312, 412), wherein a light emergent face (112A, 212A, 312A, 412A) of the photoelectric elements (112, 212, 312, 412) corresponds to the light incident face (131, 231, 331, 431); and a reflection sheet (15, 25, 35, 45), which is arranged below the light guide plate (13) and the lamp bar (11, 21, 31, 41), the reflection sheet (15, 25, 35, 45) comprising a hollowed portion, wherein the hollowed portion is correspondingly arranged between the light emergent face (112A, 212A, 312A, 412A) and the light incident face (131, 231, 331, 431) to reduce the reflective brightness of the photoelectric elements (112, 212, 312, 412). The backlight module (10, 30, 40) reduces the reflective brightness of the photoelectric elements (112, 212, 312, 412) by providing, on the reflection sheet (15, 25, 35, 45), a hollowed portion corresponding to the photoelectric elements (112, 212, 312, 412), such that the brightness of incident light of the light guide plate (13, 23, 33, 43) tends to be consistent.

Inventors:
CHENG JIAHE (CN)
Application Number:
CN2018/105069
Publication Date:
June 27, 2019
Filing Date:
September 11, 2018
Export Citation:
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Assignee:
HKC CORP LTD (CN)
CHONGQING HKC OPTOELECTRONICS TECH CO LTD (CN)
International Classes:
F21S8/00; F21V7/00
Foreign References:
CN107861293A2018-03-30
CN103175033A2013-06-26
CN103939799A2014-07-23
CN102080789A2011-06-01
CN102691945A2012-09-26
US20150293398A12015-10-15
Attorney, Agent or Firm:
SHENZHEN JINGZHI INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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