DISPLAY DEVICE

• US 20200133073A1
• Filed: 06/21/2019
• Published: 04/30/2020
• Est. Priority Date: 10/24/2018
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: KIM, KYOUNGDUCK
• Application Number:
  US16/448,468
• Publication Number:
  US 20200133073A1
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133606 including a specially adapted diffusing, scattering or light controlling members
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: G02F 2201/465 Snap -fit

Abstract

A display device includes a display panel, a diffusion plate disposed under the display panel, a light source disposed under the diffusion plate, and a first accommodating portion. The light source and the diffusion plate are each disposed on the first accommodating portion. The display device further includes a support portion coupled to the first accommodating portion to support the diffusion plate. The support portion includes a columnar portion, a coupling portion connected to a lower end of the columnar portion and coupled to the first accommodating portion, and a plurality of buffer portions connected to portions of the columnar portion and having a convex curved shape protruding downward. The portions of the columnar portion are disposed between an upper end of the columnar portion and the lower end of the columnar portion.

Claims

1. A display device comprising:

a display panel extending along a first direction and a second direction crossing the first direction;

a diffusion plate disposed under the display panel;

a light source disposed under the diffusion plate;

a first accommodating portion, wherein the light source and the diffusion plate are each disposed on the first accommodating portion; and

a support portion coupled to the first accommodating portion to support the diffusion plate,

wherein the support portion comprises;

a columnar portion extending in a third direction perpendicular to the first and second directions;

a coupling portion connected to a lower end of the columnar portion and coupled to the first accommodating portion; and

a plurality of buffer portions connected to portions of the columnar portion and having a convex curved shape protruding downward, wherein the portions of the columnar portion are disposed between an upper end of the columnar portion and the lower end of the columnar portion.

2. The display device of claim 1, wherein the lower end of the columnar portion is inserted into a first hole provided in the first accommodating portion.

3. The display device of claim 2, wherein the coupling portion passes through the first hole to be disposed under the first accommodating portion around the first hole.

4. The display device of claim 3, wherein the coupling portion includes at least two hooks extending in different directions from each other.

5. The display device of claim 2, wherein the coupling portion includes:

a vertical extending portion connected to the lower end of the columnar portion and extending in the third direction; and

a plurality of hooks extending from a lower end of the vertical extending portion,

wherein each of the plurality of hooks forms an angle smaller than about 90°

with the vertical extending portion and extends upward, and upper ends of the plurality of hooks are disposed under the first accommodating portion around the first hole.

6. The display device of claim 2, wherein the light source includes:

a plurality of light source substrates disposed on a plurality of grooves provided in the first accommodating portion; and

a plurality of light source units respectively mounted on the plurality of light source substrates.

7. The display device of claim 6, further comprising a plurality of first holes including the first hole, and a plurality of support portions including the support portion, wherein the plurality of first holes and the plurality of support portions are disposed between pairs of light source substrates of the plurality of light source substrates.

8. The display device of claim 6, further comprising a reflective sheet disposed on the plurality of light source substrates and having insertion holes provided therein, the insertion holes having the plurality of light source units inserted thereinto,

wherein the lower end of the columnar portion is inserted into a second hole provided in the reflective sheet such that the second hole overlays the fast hole.

9. The display device of claim 8, wherein the coupling portion passes through the second hole and the first hole and is disposed under the first accommodating portion.

10. The display device of claim 8, wherein the upper end of the columnar portion is in contact with the diffusion plate, and lower ends of the plurality of buffer portions are in contact with the reflective sheet.

11. The display device of claim 1, wherein the plurality of buffer portions are closer to the lower end of the columnar portion than to the upper end of the columnar portion.

12. The display device of claim 1, wherein the columnar portion, the coupling portion, and the plurality of buffer portions are formed together as a single body.

13. The display device of claim 1, wherein the support portion comprises a plastic material having a predetermined elasticity.

14. The display device of claim 1, further comprising an optical sheet disposed between the display panel and the diffusion plate.

15. The display device of claim 1, wherein the plurality of buffer portions comprise:

a first buffer portion; and

a second buffer portion forming an angle of 180°

with the first buffer portion with respect to the columnar portion and having a shape symmetrical to that of the first buffer portion with respect to the columnar portion.

16. The display device of claim 1, wherein the plurality of buffer portions comprise:

a first buffer portion;

a second buffer portion forming an angle of about 120°

with the first buffer portion with respect to the columnar portion; and

a third buffer portion forming an angle of about 120°

with each of the first buffer portion and the second buffer portion with respect to the columnar portion.

17. The display device of claim 1, wherein the plurality of buffer portions comprise:

a first buffer portion;

a second buffer portion forming an angle of about 180°

with the first buffer portion with respect to the columnar portion;

a third buffer portion forming an angle of about 90°

with the first buffer portion with respect to the columnar portion; and

a fourth buffer portion forming an angle of about 1800 with the third buffer portion with respect to the columnar portion.

18. A display device comprising:

a display panel extending in a first direction and a second direction crossing the first direction;

a diffusion plate disposed under the display panel;

a light source disposed under the diffusion plate;

a first accommodating portion, wherein the light source and the diffusion plate are disposed on the first accommodating portion; and

a support portion coupled to the first accommodating portion to support the diffusion plate,

wherein the support portion comprises;

a columnar portion extending in a third direction perpendicular to the first and second directions;

a coupling portion connected to a lower end of the columnar portion and coupled to the first accommodating portion; and

a plurality of buffer portions connected to portions of the columnar portion, wherein the portions of the columnar portion are disposed between an upper end of the columnar portion and the lower end of the columnar portion, and

wherein each of the plurality of buffer portions forms an angle smaller than about 90°

with the columnar portion, extends downward, and is substantially straight.

19. A display device comprising:

a display panel;

a diffusion plate disposed under the display panel;

a light source disposed under the diffusion plate;

a first accommodating portion, wherein the light source and the diffusion plate are disposed on the first accommodating portion; and

a support portion coupled to the first accommodating portion to support the diffusion plate,

wherein the support portion comprises;

a columnar portion extending in a direction crossing the display panel;

a plurality of buffer portions connected to portions of the columnar portion and having a convex curved shape protruding downward, wherein the portions of the columnar portion are adjacent to a lower end of the columnar portion;

a subsupport portion connected to a lower end of a first buffer portion of the plurality of buffer portions;

an insertion portion connected to a lower portion of the subsupport portion and inserted into a first hole provided in the first accommodating portion; and

a coupling portion connected to a lower portion of the insertion portion and disposed on a lower portion of the first accommodating portion around the first hole.

20. The display device of claim 19, wherein the subsupport portion is larger than the first hole,

an upper end of the columnar portion is in contact with the diffusion plate, and

the lower end of the columnar portion is spaced apart from a bottom portion of the first accommodating portion.