IP Library Granted Patent US 11,037,994
Granted Patent B2
US 11,037,994 · App. 16/393,872 · Granted Jun 15, 2021

Display panel and method for manufacturing the same

Inventors: Kuo Sun (Beijing, CN); Mingche Hsieh (Beijing, CN); Yang Wang (Beijing, CN)
Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.; BOE TECHNOLOGY GROUP CO., LTD.
H01L27/322H01L51/5012H01L51/5256H01L2227/32
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Quick Facts
Patent No.
US 11,037,994
App. No.
16/393,872
Granted
Jun 15, 2021
Kind
B2
Abstract

A display panel and a method for manufacturing the same are disclosed. The display panel includes: a display area having a plurality of first pixel units and a plurality of first transparent portions, the first transparent portions being configured such that external light is transmitted from one side of the display panel to the other side of the display panel through the first transparent portions, wherein at least two first pixel units are spaced apart by one or more first transparent portions.

Claims (41)

1. A display panel comprising:

a display area having a plurality of first pixel units and a plurality of first transparent portions, the first transparent portions being configured such that external light is transmitted through the first transparent portions from a first side of the display panel to a second side of the display panel,

wherein at least two first pixel units are spaced apart by one or more first transparent portions, and

wherein the display area comprises:

an electrode layer that is non-transparent which extends in the plurality of first pixel units;

an electrode layer lost region in an orthographic projection area of each of the plurality of first transparent portions;

a light shielding layer on a light emitting side of the display panel, and

a thin film encapsulation on the electrode layer,

wherein the light shielding layer is provided with a first light shielding layer lost region in the light shielding layer in an orthographic projection area of each of the plurality of first pixel units, and provided with a second light shielding layer lost region in the orthographic projection area of each of the plurality of first transparent portions, the second light shielding layer lost region having an orthographic projection on a base substrate at least partly overlapped with an orthographic projection of the electrode layer lost region on the base substrate, and a color filter layer which allows a light of corresponding color emitted by the first pixel units to pass is provided in the first light shielding layer lost region, and

wherein the light shielding layer and the color filter layer are arranged above the thin film encapsulation.

2. The display panel according to claim 1 , wherein the electrode layer comprises a metal electrode layer.

3. The display panel according to claim 1 , wherein all of portions of the electrode layers are electrically connected together.

4. The display panel according to claim 1 , wherein the electrode layer comprises a cathode.

5. The display panel according to claim 1 , wherein the display area comprises:

a first region, in which the plurality of first pixel units and the plurality of first transparent portions are located; and

a second region having a plurality of second pixel units, each second pixel unit of the plurality of second pixel units being adjacent to its surrounding second pixel units.

6. The display panel according to claim 5 , wherein the display area further comprises a transition region between the first region and the second region and comprises a plurality of third pixel units and a plurality of second transparent portions, wherein a ratio of a total area of the plurality of second transparent portions to a total area of the plurality of third pixel units is smaller than a ratio of a total area of the plurality of first transparent portions to a total area of the plurality of first pixel units.

7. The display panel according to claim 1 , wherein a ratio of a total area of the plurality of first transparent portions to a total area of the plurality of first pixel units is between 1:1 and 15:1.

8. The display panel according to claim 1 , wherein the display panel is an organic light emitting diode display panel.

9. A method of manufacturing the display panel of claim 1 having a base plate and a plurality of the first pixel units disposed on the base plate, wherein the method comprises:

forming one or more of the plurality of first transparent portions between at least two first pixel units to space apart the at least two first pixel units, the first transparent portions being configured such that external light is transmitted through the first transparent portions from a first side of the display panel to a second side of the display panel.

10. The method according to claim 9 , wherein the step of forming one or more of the plurality of first transparent portions between at least two first pixel units to space apart the at least two first pixel units comprises:

forming an electrode removing portion on the base plate;

forming the electrode layer on the base plate provided with the electrode removing portion; and

removing a portion of the electrode layer on the electrode removing portion to form the transparent portions.

11. The method according to claim 10 , wherein the electrode removing portion comprises a protrusion.

12. The method according to claim 10 , wherein the step of forming one or more of the plurality of first transparent portions between at least two first pixel units to space apart the at least two first pixel units further comprises:

forming a light emitting material layer on the base plate provided with the electrode removing portion after the electrode removing portion is formed on the base plate.

13. The method according to claim 10 , wherein the step of forming an electrode removing portion on the base plate comprises:

forming a light emitting material layer on the base plate; and

forming the electrode removing portion on the light emitting material layer.

14. The method according to claim 12 , wherein the electrode layer and the light emitting material layer are formed by evaporation.

15. The method according to claim 13 , wherein the electrode removing portion comprises anti-adhesion material.

16. The method according to claim 10 , wherein the step of forming one or more of the plurality of first transparent portions between at least two first pixel units to space apart the at least two first pixel units further comprises:

forming] the light shielding layer and the color filter layer on the electrode layer and removing portions of the light shielding layer and the color filter layer in an orthographic projection area of each of the transparent portions.

17. The method according to claim 9 , wherein the step of forming one or more of the plurality of first transparent portions between at least two first pixel units to space apart the at least two first pixel units comprises:

forming a light emitting material layer and the electrode layer on the base plate; and

removing a portion of the electrode layer in a predetermined area by plasma bombardment to form the transparent portions.

18. The method according to claim 9 , wherein the step of forming one or more of the plurality of first transparent portions between at least two first pixel units to space apart the at least two first pixel units comprises:

forming a light emitting material layer and the electrode layer on the base plate; and

removing the portion of the electrode layer in a predetermined area by laser ablation to form the transparent portions.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 24, 2019
From: SUN, KUO; HSIEH, MINGCHE; WANG, YANG
To: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.; BOE TECHNOLOGY GROUP CO., LTD.
Reel/Frame 048987/0639 →
Priority Claims (1)
CN 201810999220.8 · Aug 29, 2018 · national
Continuity (1)
Related Publication 20200075680A1 · Mar 5, 2020