Display module and middle frame

Patent metadata

Field	Value
Publication number	US-12353094-B2
Application number	US-202118263619-A
Country	US
Kind code	B2
Filing date	Oct 29, 2021
Priority date	Oct 29, 2021
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

The embodiments of the present disclosure provide a display module and a middle frame, the display module includes a backlight module and a display panel, the backlight module includes a back plate, a first light source, a middle frame. The back plate includes a bottom plate, the first light source is on the bottom plate, the middle frame is between the bottom plate and the display panel. A side of the middle frame close to the display panel includes a first bearing portion and a second bearing portion, the first bearing portion is at an edge of the middle frame, a second light source is on the first bearing portion, the second bearing portion is on a side of the first bearing portion close to a display region of the display panel, the second bearing portion is connected to a position of the display panel corresponding to the display region.

First claim

What is claimed is:

1. A display module, comprising a backlight module and a display panel, wherein
the backlight module comprises:
a back plate, comprising a bottom plate;
a first light source, disposed on the bottom plate; and
a middle frame, disposed between the bottom plate and the display panel, wherein

a side of the middle frame close to the display panel comprises a first bearing portion and a second bearing portion, the first bearing portion is at an edge of the middle frame, and a second light source is disposed on the first bearing portion; and
the second bearing portion is on a side of the first bearing portion close to a display region of the display panel, and the second bearing portion is connected to a position of the display panel corresponding to the display region;
the middle frame comprises an arc-shaped portion protruding toward the first light source, an optical film layer is disposed on a surface of the arc-shaped portion close to the first light source, and the optical film layer is configured to guide light emitted by the first light source and irradiated on the optical film layer to the display panel.

2. The display module according to claim 1 , further comprising a light board disposed on the first bearing portion, wherein the second light source comprises a plurality of light-emitting diodes disposed on the light board.

3. The display module according to claim 2 , wherein in a direction from the display region to a non-display region, at least two light-emitting diodes are disposed on the light board.

4. The display module according to claim 1 , further comprising a light guide plate disposed on the first bearing portion, wherein the second light source comprises a light bar disposed on a side wall of the first bearing portion.

5. The display module according to claim 1 , wherein a width of the second bearing portion is smaller than a width of the first bearing portion.

6. The display module according to claim 5 , wherein the width of the second bearing portion is 1%˜10% of the width of the first bearing portion.

7. The display module according to claim 1 , wherein an accommodating space between the arc-shaped portion and a side plate of the back plate as well as the bottom plate of the back plate, and a first supporting portion;
the first supporting portion is disposed in the accommodating space, and the first supporting portion is in an “L” shape; and
a first end of the first supporting portion is connected to a surface of the first bearing portion close to the bottom plate, and a second end of the first supporting portion is connected to a surface of the arc-shaped portion close to the side plate.

8. The display module according to claim 7 , wherein a gap is formed between the first supporting portion and the side plate.

9. The display module according to claim 7 , wherein the first supporting portion divides the accommodating space into a first sub-accommodating space and a second sub-accommodating space, and a volume of the first sub-accommodating space is smaller than a volume of the second sub-accommodating space.

10. The display module according to claim 9 , wherein a signal line, a connector and a driving board are disposed in the first sub-accommodating space, a first end of the signal line is electrically connected to the second light source, a second end of the signal line is electrically connected to the driving board through the connector, and the driving board is configured to provide a turn-on voltage to the second light source.

11. The display module according to claim 9 , further comprising a flexible circuit board, a supporting foam, and a flexible circuit protective board which are all disposed on a side of the side plate away from the second sub-accommodating space, and the flexible circuit board is connected to the display panel and configured to drive the display panel for display.

12. The display module according to claim 7 , wherein the middle frame further comprises a second supporting portion, the second supporting portion is in a shape of a strip, a first end of the second supporting portion is connected to the first bearing portion, and a side wall of the second supporting portion is laminated to a side wall of the side plate.

13. The display module according to claim 1 , wherein the display panel comprises a liquid crystal cell and a glass diffuser plate disposed on a side of the liquid crystal cell close to the backlight module, and the second bearing portion and the glass diffuser plate are laminated together by an adhesive.

14. The display module according to claim 1 , further comprising a reflective film disposed on the bottom plate, and the reflective film is at least partially disposed between the bottom plate and a bottom surface of the middle frame, and the reflective film is in contact with both the bottom plate and the bottom surface of the middle frame.

15. The display module according to claim 1 , further comprising a light-shielding tape, wherein the light-shielding tape is connected to a side surface of the display panel, a side surface of the first bearing portion, and a surface of the bottom plate away from the display panel.

16. The display module according to claim 15 , further comprising a reflective layer disposed between the light-shielding tape and the second light source, and the reflective layer is laminated to the light-shielding tape.

17. The display module according to claim 1 , further comprising a glass plate disposed on a side of the display panel away from the backlight module, wherein an edge of the glass plate comprises an arc-shaped portion.

18. A middle frame, comprising a first bearing portion and an arc-shaped portion connected to an end portion of the first bearing portion, wherein
the arc-shaped portion protrudes toward a side away from the first bearing portion, and a second bearing portion is disposed on an end portion of a side of the arc-shaped portion; and
a first supporting portion is disposed between the first bearing portion and the arc-shaped portion, a first end of the first supporting portion is connected to a surface of the first bearing portion opposite to a bearing surface, and a second end of the first supporting portion is connected to a surface of the arc-shaped portion to form a first sub-accommodating space;
an optical film layer is disposed on a surface of the arc-shaped portion close to the first light source.

19. The middle frame according to claim 18 , wherein a second supporting portion is disposed on a side of the first sub-accommodating space away from the arc-shaped portion, the second supporting portion is in a shape of a strip, and a first end of the second supporting portion is connected to the first bearing portion.

Assignees

• Beijing Boe Display Tech Co
• Boe Technology Group Co Ltd

Inventors

• Wang Bochang
• Hou Shanlei
• Shi Haijun
• Tian Zhaoshou
• Sun Xiaodi
• Guo Hui

Classifications

• G02F1/133603 Primary

  with LEDs · CPC title

• G02F1/133608 Primary

  including particular frames or supporting means · CPC title

• G02F1/133317

  Intermediate frames, e.g. between backlight housing and front frame · CPC title