Backlight assembly and display apparatus

• US 10,168,573 B2
• Filed: 12/28/2015
• Issued: 01/01/2019
• Est. Priority Date: 05/21/2015
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Cao, Lei
• Primary Examiner(s): Patel, Nimeshkumar
• Assistant Examiner(s): Stern, Jacob R
• Application Number:
  US15/030,595
• Publication Number:
  US 20160342027A1
• Time in Patent Office: 1,100 Days
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133314 Back frames
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means

Abstract

The present application discloses a backlight assembly, comprising an optical film; and a frame for retaining the backlight and the optical film. The frame comprises a side wall having a first end surface, a second end surface opposite to the first end surface, a first side surface and a second side surface opposite to the first side surface; and a first receiving protrusion for receiving the backlight; and a second receiving protrusion for receiving the optical film, the first receiving protrusion and the second receiving protrusion protruding from the first side surface of the side wall in a first direction.

Claims

1. A display apparatus, comprising a backlight assembly;

wherein the backlight assembly comprises a backlight;

an optical film; and

a frame for retaining the backlight and the optical film;

wherein the frame comprises a side wall having a first end surface, a second end surface opposite to the first end surface, a first side surface and a second side surface opposite to the first side surface;

a first receiving protrusion for receiving the backlight; and

a second receiving protrusion for receiving the optical film, the first receiving protrusion and the second receiving protrusion protruding from the first side surface of the side wall in a first direction;

the display apparatus further comprises;

an elastic pad on a side of the first end surface distal to the second end surface; and

a display panel on a side of the elastic pad distal to the first end surface;

wherein a peripheral portion of the optical film is between the second receiving protrusion and the elastic pad, a projection of the second receiving protrusion on a plane containing a surface of the optical film in plan view of the optical film at least partially overlaps with a projection of the peripheral portion of the optical film on the plane containing the surface of the optical film in plan view of the optical film, and a projection of the elastic pad on the plane containing the surface of the optical film in plan view of the optical film at least partially overlaps with the projection of the peripheral portion of the optical film on the plane containing the surface of the optical film in plan view of the optical film; and

the frame comprises a combining protrusion on the first end surface, the elastic pad comprises a combining recess, the combining recess in the elastic pad and the combining protrusion in the frame cooperatively configured to secure the elastic pad to the frame.

2. The display apparatus of claim 1, wherein the peripheral portion of the optical film is in contact with the second receiving protrusion and the elastic pad.

3. The display apparatus of claim 1, wherein a peripheral portion of the optical film is on a side of the second receiving protrusion distal to the first receiving protrusion.

4. The display apparatus of claim 1, wherein the backlight comprises a light source and a backplane, an end of the backplane adjoining an end of the first receiving protrusion, a back plane and the first receiving protrusion substantially on a same plane.

5. The display apparatus of claim 1, wherein the backlight comprises a light source and a light guide, a peripheral portion of the light guide on a side of the first receiving protrusion proximal to the second receiving protrusion.

6. The display apparatus of claim 1, wherein the frame comprises a combining protrusion on the first end surface.

7. The display apparatus of claim 6, wherein the combining protrusion extending in a second direction substantially perpendicular to the first end surface.

8. The display apparatus of claim 6, wherein the combining protrusion has a substantially wedge shape.

9. The display apparatus of claim 1, wherein the first direction is substantially parallel to the first end surface and the second end surface.

10. The display apparatus of claim 1, wherein the elastic pad is an elastic frame having a substantially rectangular shape.

11. The display apparatus of claim 1, wherein the display apparatus comprises a plurality of the elastic pads.

12. The display apparatus of claim 11, wherein the display apparatus comprises four elastic pads around four corners of the frame.

13. The display apparatus of claim 11, wherein the display apparatus comprises eight elastic pads.

14. The display apparatus of claim 1, further comprising a baffle on a side of the first end surface distal to the second end surface, protruding in a third direction substantially parallel to the first end surface, a peripheral portion of the optical film is sandwiched by the baffle and the second receiving protrusion.

15. The display apparatus of claim 14, wherein the elastic pad is thicker than the baffle.

16. The display apparatus of claim 14, wherein the elastic pad is an elastic frame having a substantially rectangular shape, the elastic frame comprises a plurality of recesses for receiving a plurality of the baffles, the plurality of recesses being fitted with the plurality of the baffles.

17. The display apparatus of claim 14, wherein the display apparatus comprises a plurality of the elastic pads, the baffle is between two neighboring elastic pads.

18. The display apparatus of claim 14, wherein the baffle has a substantially L shape comprising a first arm and a second arm, the first arm on a side of the first end surface distal to the second end surface, the second arm on a side of the second side surface distal to the first side surface.

19. The display apparatus of claim 1, further comprising a second elastic pad on a side of the display panel distal to the elastic pad.