IP Library › Granted Patent US 11,374,063
Granted Patent B2
US 11,374,063 · App. 16/638,137 · Granted Jun 28, 2022

Display panel with color filter layer and anti-reflection film layer and manufacturing method thereof

Inventor: Zesheng Chen (Wuhan, CN)
H01L27/322H01L27/3262H01L51/5237H01L51/56H01L2251/558
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Quick Facts
Patent No.
US 11,374,063
App. No.
16/638,137
Granted
Jun 28, 2022
Kind
B2
Abstract

The present invention provides a display panel and a manufacturing method of the display panel. The display panel includes a base substrate, a light emitting device layer, an encapsulation layer, and a color filter layer. The color filter layer includes multiple first light shielding portions, multiple color resists, and multiple second light shielding portions. An opening is formed between each two adjacent second light shielding portions and arranged corresponding to the pixel unit. The present invention increases an area for inkjet printing in a high-resolution small-sized display panel and reduces the reflectivity of the display panel to ambient light, and edges of the color filter layer less affect a light emitting device.

Claims (27)

1. A display panel, comprising:

a base substrate;

a thin film transistor (TFT) array layer disposed on the base substrate;

a light emitting device layer disposed on the TFT array layer, the light emitting device layer comprising a plurality of pixel units;

an encapsulation layer disposed on the light emitting device layer;

a color filter layer disposed on the encapsulation layer, the color filter layer comprising a plurality of first light shielding portions, a plurality of color resists, and a plurality of second light shielding portions; and

an anti-reflection film layer;

wherein the first light shielding portions are spaced apart from each other on the encapsulation layer, each color resist is disposed in an interval between two adjacent first light shielding portions, an orthographic projection of each second light shielding portion projected on the base substrate covers orthographic projections of the corresponding first light shielding portion and a periphery of the corresponding color resist projected on the base substrate, so that an opening is formed between each two adjacent second light shielding portions, each opening is arranged corresponding to one of the pixel units, and each opening has an inverted trapezoidal shape;

wherein a width of each second light shielding portion is greater than a width of the corresponding first light shielding portion; and

wherein the anti-reflection film layer covers the second light shielding portions and the openings.

2. The display panel according to claim 1 , wherein the first light shielding portions and the second light shielding portions each are a composite structure constituted by multiple stacked film layers.

3. The display panel according to claim 2 , wherein the composite structure comprises a silicon oxide layer, a silicon nitride layer, and a silicon oxide layer which are sequentially stacked from bottom to top.

4. The display panel according to claim 1 , wherein a shape of each of the openings is the same as a shape of a corresponding one of the pixel units, and an orthographic projection of each opening and an orthographic projection of a corresponding one of the pixel units coincide with each other on the base substrate.

5. The display panel according to claim 1 , wherein a width of each opening is less than a width of the corresponding color resist.

6. The display panel according to claim 1 , wherein a thickness of each second light shielding portion ranges from 0.1 nm to 1000 nm.

7. A display panel, comprising:

a base substrate;

a thin film transistor (TFT) array layer disposed on the base substrate;

a light emitting device layer disposed on the TFT array layer, the light emitting device layer comprising a plurality of pixel units;

an encapsulation layer disposed on the light emitting device layer;

a color filter layer disposed on the encapsulation layer, the color filter layer comprising a plurality of first light shielding portions, a plurality of color resists, and a plurality of second light shielding portions; and

an anti-reflection film layer;

wherein the first light shielding portions are spaced apart from each other on the encapsulation layer, each color resist is disposed in an interval between two adjacent first light shielding portions, an orthographic projection of each second light shielding portion projected on the base substrate covers orthographic projections of the corresponding first light shielding portion and a periphery of the corresponding color resist projected on the base substrate, so that an opening is formed between each two adjacent second light shielding portions, and each opening is arranged corresponding to one of the pixel units;

wherein a width of each second light shielding portion is greater than a width of the corresponding first light shielding portion; and

wherein the anti-reflection film layer covers the second light shielding portions and the openings.

8. The display panel according to claim 7 , wherein the first light shielding portions and the second light shielding portions each are a composite structure constituted by multiple stacked film layers.

9. The display panel according to claim 7 , wherein a shape of each of the openings is the same as a shape of a corresponding one of the pixel units, and an orthographic projection of each opening and an orthographic projection of a corresponding one of the pixel units coincide with each other on the base substrate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2020
From: CHEN, ZESHENG
To: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Reel/Frame 051775/0320 →
Priority Claims (1)
CN 201911321982.3 · Dec 20, 2019 · national
Continuity (1)
Related Publication 20210193741A1 · Jun 24, 2021