IP Library Granted Patent US 11,139,347
Granted Patent B2
US 11,139,347 · App. 16/599,708 · Granted Oct 5, 2021

Display device and method for manufacturing the same

Inventors: Tun Liu (Beijing, CN); Huajie Yan (Beijing, CN); Zhiqiang Jiao (Beijing, CN)
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
H01L27/322H01L27/3246H01L51/5218H01L51/5271H01L51/56G02B5/201
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Quick Facts
Patent No.
US 11,139,347
App. No.
16/599,708
Granted
Oct 5, 2021
Kind
B2
Abstract

A display device includes a display substrate and a color filter structure. The display substrate includes a base substrate and a plurality of light-emitting units on the base substrate. The color filter structure includes a shading unit and a plurality of spaced color filter units in the shading unit. The color filter units are corresponding to the light-emitting units in a one-to-one manner. The color filter structure further includes a plurality of light transmission compensation units that are corresponding to at least some of the color filter units in a one-to-one manner. The display device further includes a reflection unit located at a periphery of the corresponding light-emitting unit.

Claims (26)

1. A display device comprising:

a display substrate comprising:

a base substrate;

a plurality of light-emitting units on the base substrate;

a pixel definition layer on the base substrate, the pixel definition layer defining a plurality of pixel opening regions on the base substrate, the plurality of light-emitting units being disposed in the plurality of pixel opening regions in a one-to-one manner; and

a reflection unit on a surface of the pixel definition layer distal to the base substrate; and

a color filter structure comprising:

a shading unit;

a plurality of spaced color filter units in the shading unit, the color filter units corresponding to the light-emitting units in a one-to-one manner; and

a plurality of light transmission compensation units corresponding to at least some of the color filter units in a one-to-one manner, the compensation units are in the shading unit and are located at a periphery of the corresponding color filter unit, the compensation units being spaced from the corresponding color filter unit,

wherein the a reflection unit is located at a periphery of a corresponding light-emitting unit, and

wherein an orthographic projection of the compensation units to the base substrate is within an orthographic projection of the pixel definition layer to the base substrate.

2. The display device of claim 1 , wherein the compensation unit is located at a periphery of the corresponding color filter unit; and the compensation unit is spaced from the corresponding color filter unit.

3. The display device of claim 1 , wherein an orthographic projection of the reflection unit to the base substrate is located between an orthographic projection of the corresponding compensation unit to the base substrate and an orthographic projection of the corresponding color filter unit to the base substrate.

4. The display device of claim 3 , wherein there is no overlapping between the orthographic projection of the reflection unit to the base substrate and the orthographic projection of the corresponding compensation unit to the base substrate.

5. The display device of claim 1 , wherein the color filter unit and the corresponding compensation unit form as a combined filter unit; and an area of an orthographic projection of each combined filter unit to the base substrate is approximately the same.

6. The display device of claim 5 , wherein the color filter units include a red filter unit, a green filter unit and a blue filter unit; an area of the red filter unit is greater than an area of the green filter unit, and the area of the red filter unit is less than an area of the blue filter unit;

the compensation units include a red compensation unit, a green compensation unit and a blue compensation unit; and an area of the red compensation unit is greater than an area of the blue compensation unit, and the area of the red compensation unit is less than an area of the green compensation unit.

7. The display device of claim 6 , wherein the red compensation unit includes a plurality of independent red compensation sub-units; the plurality of independent red compensation sub-units are distributed around a periphery of the red filter unit;

the green compensation unit includes a plurality of independent green compensation sub-units; the plurality of independent green compensation sub-units are distributed around a periphery of the green filter unit; and

the blue compensation unit includes a plurality of independent blue compensation sub-units; the plurality of independent blue compensation sub-units are distributed around a periphery of the blue filter unit.

8. The display device of claim 7 , wherein a quantity of the red compensation sub-units distributed around the periphery of the identical red filter unit, is greater than a quantity of the blue compensation sub-units distributed around the periphery of the identical blue filter unit; and the quantity of the red compensation sub-units distributed around the periphery of the identical red filter unit, is less than a quantity of the green compensation sub-units distributed around the periphery of the identical green filter unit.

9. The display device of claim 5 , wherein the light-emitting unit includes a cathode layer, a reflective anode layer disposed opposite to the cathode layer, and a light-emitting layer disposed between the anode layer and the cathode layer; the anode layer is disposed between the cathode layer and the base substrate; and

the reflection unit and the anode layer in the corresponding light-emitting unit together form a combined reflection unit; an area of an orthographic projection of each combined reflection unit to the base substrate is approximately the same.

10. The display device of claim 1 , wherein the compensation unit and the corresponding color filter unit are in the same layer and made of the same material.

11. The display device of claim 1 , wherein each compensation unit includes a plurality of independent compensation sub-units; the plurality of independent compensation sub-units are distributed around a periphery of the corresponding color filter unit.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2022
From: BOE TECHNOLOGY GROUP CO., LTD.
To: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
Reel/Frame 060826/0252 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2019
From: LIU, TUN; YAN, HUAJIE; JIAO, ZHIQIANG
To: BOE TECHNOLOGY GROUP CO., LTD.
Reel/Frame 050767/0327 →
Priority Claims (1)
CN 201910032051.5 · Jan 14, 2019 · national
Continuity (1)
Related Publication 20200227486A1 · Jul 16, 2020