Granted Patent B2

US 12,242,156 · App. 18/497,610 · Granted Mar 4, 2025

Inventors: Chulgoo Son (Paju-si, KR); Kiduck Park (Paju-si, KR); Jeongho Seo (Paju-si, KR); Dongjun Cho (Paju-si, KR); Sunghyun Jung (Paju-si, KR); Inwha Lee (Paju-si, KR)

Assignee: LG Display Co., Ltd.

G02F1/133608G02F1/133611

Abstract

Claims (59)

1. A backlight unit comprising:

a bottom chassis;

a light source on the bottom chassis, the light source configured to emit light;

an optical sheet over the light source; and

a support between the bottom chassis and the optical sheet, and configured to support the optical sheet, the support including a fastening portion fastened to the bottom chassis, a support portion disposed under the optical sheet, and a body portion between the fastening portion and the support portion,

wherein the body portion of the support comprises:

a first portion extending in a first direction;

a second portion extending in the first direction and spaced apart from the first portion, the second portion between the first portion and the fastening portion; and

a third portion that connects together the first portion and the second portion,

wherein the support portion has a cylinder shape, and an end of the support portion is rounded or flat, and

wherein a bottom surface of the fastening portion is fastened to an upper surface of the bottom chassis.

2. The backlight unit of claim 1 , wherein the body portion is elastic.

3. The backlight unit of claim 1 , wherein a width of the body portion in the first direction is greater than five times a width of the support portion in the first direction.

4. The backlight unit of claim 1 , wherein a width of the second portion in the first direction is greater than a width of the fastening portion in the first direction.

5. The backlight unit of claim 1 , wherein a width of the first portion in the first direction is less than a width of the second portion in the first direction.

6. The backlight unit of claim 1 , wherein a width of the first portion in the first direction is greater than a width of the second portion in the first direction.

7. The backlight unit of claim 1 , wherein a width of the first portion in the first direction is a same as a width of the second portion in the first direction.

8. The backlight unit of claim 7 , wherein the third portion extends in a second direction that is different from the first direction, and the support portion extends in the second direction toward the optical sheet.

9. The backlight unit of claim 1 , wherein the first portion and the second portion have a same material as each other.

10. A backlight unit comprising:

a bottom chassis;

a light source on the bottom chassis, the light source configured to emit light;

an optical sheet over the light source; and

a support between the bottom chassis and the optical sheet, and configured to support the optical sheet, the support including:

a fastening portion fastened to the bottom chassis;

a support portion disposed under the optical sheet; and

a body portion between the fastening portion and the support portion, the body portion including:

a first portion that is connected to the support portion; and

a second portion that is connected to the fastening portion and is directly connected to the first portion,

wherein the support portion has a cylinder shape, and an end of the support portion is rounded or flat, and

wherein a bottom surface of the fastening portion is fastened to an upper surface of the bottom chassis.

11. The backlight unit of claim 10 , wherein the body portion is elastic.

12. The backlight unit of claim 10 , wherein the second portion extends in a first direction and the first portion extends in an oblique direction of the first direction.

13. The backlight unit of claim 10 , wherein the first portion has a curved cross-section.

14. The backlight unit of claim 13 , wherein a length of the second portion in a first direction is curved.

15. A display device comprising:

a display panel; and

the backlight unit of claim 1 .

16. A display device comprising:

a display panel; and

the backlight unit of claim 10 .

17. The backlight unit of claim 10 , wherein the first portion and the second portion have a same material as each other.

18. A display device comprising:

a display panel;

a bottom chassis, the display panel over the bottom chassis;

a light source on the bottom chassis, the light source configured to emit light;

an optical sheet over the light source; and

a support that is between the bottom chassis and the optical sheet, the support including an elastic body portion and a support portion that extends from the elastic body portion to the optical sheet such that the support portion is in contact with the optical sheet,

wherein a portion of the optical sheet is at a first position absent a touch of the display device at a first time, and the elastic body portion is configured to compress such that the portion of the optical sheet bends to a second position that is closer to the bottom chassis than at the first position while the display device is touched at a second time.

19. The display device of claim 18 , wherein the elastic body portion is configured to expand responsive to the display device no longer being touched at a third time such that the portion of the optical sheet returns to the first position.

20. The display device of claim 18 , wherein the support further comprises a fastening portion that connects the support to the bottom chassis, the elastic body portion between the fastening portion and the support portion.

21. The display device of claim 20 , wherein a width of the elastic body portion is wider than a width of the support portion and a width of the fastening portion, and the width of the fastening portion is wider than the width of the support portion.

22. The display device of claim 20 , wherein the elastic body portion comprises:

a first portion extending in a first direction;

a second portion extending in the first direction and spaced apart from the first portion, the second portion between the first portion and the fastening portion; and

a third portion that connects together the first portion and the second portion.

23. The display device of claim 20 , wherein the elastic body portion comprises:

a first portion that is connected to the support portion; and

a second portion that is connected to the fastening portion and is directly connected to the first portion.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (39)