Display screen and mobile terminal

Patent metadata

Field	Value
Publication number	US-12196997-B2
Application number	US-202218691880-A
Country	US
Kind code	B2
Filing date	Jul 29, 2022
Priority date	Sep 24, 2021
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

A display screen ( 12 ) includes: a touch panel ( 1201 ), an optical adhesive layer ( 1202 ) disposed below the touch panel ( 1201 ), a light guide plate ( 1211 ) disposed below the optical adhesive layer ( 1202 ), and a light emitting member ( 1213 ) configured to emit light. The light guide plate ( 1211 ) includes a light guide plate layer and a diffusion layer disposed on an upper surface of the light guide plate layer, and the diffusion layer is configured to diffusely reflect light emitted by the light emitting member ( 1213 ). The optical adhesive layer ( 1202 ) includes diffusion particles for atomizing light transmitted through the light guide plate ( 1211 ).

First claim

What is claimed is:

1. A display screen, comprising: a touch panel, an optical adhesive layer disposed below the touch panel, a light guide plate disposed below the optical adhesive layer, and a light emitting member configured to emit light, wherein the light passes through the light guide plate and the optical adhesive layer towards the touch panel,
wherein the light guide plate comprises a light guide plate layer and a diffusion layer disposed on an upper surface of the light guide plate layer, and the diffusion layer is configured to diffusely reflect light emitted by the light emitting member, and
wherein the optical adhesive layer comprises diffusion particles for atomizing light transmitted through the light guide plate.

2. The display screen of claim 1 , wherein the diffusion layer is a diffusion coating layer or a bump structure layer for diffusing the light emitted by the light emitting member.

3. The display screen of claim 1 , wherein the display screen further comprises a polarizer, the polarizer is provided between the optical adhesive layer and the light guide plate, and the polarizer has a matte surface.

4. The display screen of claim 3 , wherein the display screen further comprises a plurality of diffusion film layers disposed between the polarizer and the light guide plate.

5. The display screen of claim 4 , wherein the display screen further comprises a light shielding tape, and the light shielding tape is provided between the polarizer and the diffusion film layers.

6. The display screen of claim 3 , wherein the display screen further comprises a color filter and a thin film transistor, the polarizer comprises an upper polarizer and a lower polarizer, the color filter is disposed between the upper polarizer and the lower polarizer, and the thin film transistor is disposed between the color filter and the lower polarizer.

7. The display screen of claim 1 , wherein the touch panel comprises a glass reflection surface, and the glass reflection surface is matte.

8. The display screen of claim 1 , wherein the display screen further comprises a reflection sheet, and the reflection sheet is provided below the light guide plate.

9. The display screen of claim 8 , wherein the display screen further comprises an adhesive frame for holding the light guide plate and the reflection sheet, an iron frame for protecting the display screen, and a peripheral wrapping tape disposed around the display screen.

10. The display screen of claim 1 , wherein the optical adhesive layer comprises an optical adhesive, and the optical adhesive is a special adhesive for bonding the transparent optical element.

11. A mobile terminal comprises a housing, a circuit board, and a display screen, wherein the circuit board is mounted within the housing, the display screen is received in the housing to form an enclosed space with the housing, and the display screen is electrically connected to the circuit board,
wherein the display screen comprises a touch panel, an optical adhesive layer disposed below the touch panel, a light guide plate disposed below the optical adhesive layer, and a light emitting member configured to emit light, wherein the light passes through the light guide plate and the optical adhesive layer towards the touch panel,
wherein the light guide plate comprises a light guide plate layer and a diffusion layer disposed on an upper surface of the light guide plate layer, and the diffusion layer is configured to diffusely reflect light emitted by the light emitting member, and
wherein the optical adhesive layer comprises diffusion particles for atomizing light transmitted through the light guide plate.

12. The mobile terminal of claim 11 , wherein the diffusion layer is a diffusion coating layer or a bump structure layer for diffusing the light emitted by the light emitting member.

13. The mobile terminal of claim 11 , wherein the display screen further comprises a polarizer, the polarizer is provided between the optical adhesive layer and the light guide plate, and the polarizer has a matte surface.

14. The mobile terminal of claim 13 , wherein the display screen further comprises a plurality of diffusion film layers disposed between the polarizer and the light guide plate.

15. The mobile terminal of claim 14 , wherein the display screen further comprises a light shielding tape, and the light shielding tape is provided between the polarizer and the diffusion film layers.

16. The mobile terminal of claim 13 , wherein the display screen further comprises a color filter and a thin film transistor, the polarizer comprises an upper polarizer and a lower polarizer, the color filter is disposed between the upper polarizer and the lower polarizer, and the thin film transistor is disposed between the color filter and the lower polarizer.

17. The mobile terminal of claim 11 , wherein the touch panel comprises a glass reflection surface, and the glass reflection surface is matte.

18. The mobile terminal of claim 11 , wherein the display screen further comprises a reflection sheet, and the reflection sheet is provided below the light guide plate.

19. The mobile terminal of claim 18 , wherein the display screen further comprises an adhesive frame for holding the light guide plate and the reflection sheet, an iron frame for protecting the display screen, and a peripheral wrapping tape disposed around the display screen.

20. The mobile terminal of claim 11 , wherein the optical adhesive layer comprises an optical adhesive, and the optical adhesive is a special adhesive for bonding the transparent optical element.

Assignees

• Huizhou Tcl Mobile Communication Co Ltd

Inventors

• Qiu Zhuwei
• Ma Jitao
• Lin Ke
• Chen Ping

Classifications

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G02B6/0031

  Reflecting element, sheet or layer · CPC title

• G02B5/3025

  Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state (G02B5/3008, G02B5/3016 take precedence) · CPC title

• G02F1/1335

  Structural association of cells with optical devices, e.g. polarisers or reflectors · CPC title

• G02F1/1336

  Illuminating devices · CPC title