Patent ID: 11925090
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An organic light emitting diode (OLED) display panel, comprising:
an array layer;
an organic light emitting layer arranged on the array layer and comprising at least one light emitting unit; and
a color filter layer arranged on the organic light emitting layer and comprising a photoresist structure and at least one color resist unit, and the photoresist structure comprising:
a first defining layer, comprising at least one first color resist defining area; and
a second defining layer, disposed on a side of the first defining layer away from the array layer and comprising a second color resist defining area at a position corresponding to the first color resist defining area,

wherein the first color resist defining area and the second color resist defining area have a same shape and are concentric, an opening of the second color resist defining area is larger than an opening of the first color resist defining area, and the second defining layer comprises a sloped surface defined between the first color resist defining area and the second color resist defining area; and
wherein the color resist unit is arranged in an area defined by the first color resist defining area and the second color resist defining area and corresponds to the light emitting unit.