Title:
CIRCUIT BOARD AND DISPLAY SCREEN
Document Type and Number:
WIPO Patent Application WO/2020/253217
Kind Code:
A1
Abstract:
A circuit board and a display screen (10). The circuit board comprises a substrate (100) and a circuit layer (200), wherein the circuit layer (200) is arranged on the substrate (100); and a face, facing the circuit layer (200), of the substrate (100) is provided with an optical barrier layer (300), wherein the raw materials of the optical barrier layer (300) comprise a white pigment, and a face, facing away from the substrate (100) and the circuit layer (200), of the optical barrier layer (300) is provided with an ink layer (400). When the circuit board is used for manufacturing the display screen (10), lamp beads (120) are provided on the circuit layer (200), and after the lamp beads (120) are extinguished, the optical barrier layer (300) can reflect white light, so as to prevent the color of the substrate (100) from reflecting onto the circuit board, and maintain the color consistency of the ink layer (400), thereby ensuring the color consistency of the display screen (10) after the lamp beads (120) are extinguished.
Inventors:
SUN TIANPENG (CN)
ZHANG JINGANG (CN)
HU XINXI (CN)
ZHANG JINGANG (CN)
HU XINXI (CN)
Application Number:
PCT/CN2019/130342
Publication Date:
December 24, 2020
Filing Date:
December 31, 2019
Export Citation:
Assignee:
UNILUMIN GROUP CO LTD (CN)
International Classes:
H05K1/02; G09F9/33
Foreign References:
| CN106163098A | 2016-11-23 | |||
| CN103545438A | 2014-01-29 | |||
| CN110225651A | 2019-09-10 | |||
| CN108882548A | 2018-11-23 | |||
| CN205844696U | 2016-12-28 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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