Patent ID: 11927790
Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F

Claim 4:
5. The backlight module of claim 3, wherein:
a material of the light guide layer is an organic material, and the organic material is one of white photoresist, white ink, or black matrix photoresist;
colors of the first light guide layer and the second light guide layer are different;
when the material of the light guide layer is the white photoresist or the white ink, a film layer thickness of the light guide layer ranges from 5 microns to 30 microns, and a reflectivity of the light guide layer is less than or equal to 90%; and
when the material of the light guide layer is the black matrix photoresist, the film layer thickness of the light guide layer is less than or equal to 1 micron, the reflectivity of the light guide layer is less than or equal to 1%, and an absorption rate of the light guide layer is greater than or equal to 90%.