Display apparatus

• US 10,234,724 B2
• Filed: 11/03/2017
• Issued: 03/19/2019
• Est. Priority Date: 02/24/2017
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Kil Hong, Kim, Dae Young, Kim, Hyung-Ki, Jeon, Duk Jin
• Primary Examiner(s): Han, Jason M
• Application Number:
  US15/802,575
• Publication Number:
  US 20180246378A1
• Time in Patent Office: 501 Days
• Field of Search: 362 971- 974, 362612, 362630-634, 349 58- 60
• CPC Class Codes: G02B 6/0035 provided on the surface of the light guide or in the bulk of it
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package
• CPC Class Codes: G02B 6/009 of the light source in the package G02B6/0021 takes precedence
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side

Abstract

A display apparatus includes a display panel, a light guide plate configured to guide light to the display panel, a light source module configured to emit light toward the light guide plate, optical sheets disposed between the display panel and the light guide plate, a bottom chassis, on which the light guide plate is seated, and configured to support the optical sheets to be spaced apart from the light guide plate forming an optical distance between the optical sheets and the light guide plate, and a plurality of supporters fixed to the bottom chassis and configured to support the optical sheets to prevent the optical sheets from sagging.

Claims

1. A display apparatus comprising:

a display panel;

a light guide plate configured to guide light to the display panel;

a light source module configured to emit light toward the light guide plate;

optical sheets disposed between the display panel and the light guide plate, the optical sheets being spaced apart from the light guide plate;

a bottom chassis, on which the light guide plate is disposed, the bottom chassis configured to support the optical sheets, the bottom chassis forming an optical distance between the optical sheets and the light guide plate; and

a plurality of supporters fixed to the bottom chassis, the plurality of supporters being configured to support the optical sheets to prevent the optical sheets from sagging,

wherein the light source module comprises a printed circuit board, the printed circuit board comprising a conductive pattern and a plurality of light sources mounted on the printed circuit board, and the printed circuit board is fixed to a fixing rail such that the plurality of light sources are spaced apart from the light guide plate at regular intervals,

a mounting plate to mount the fixing rail thereon is coupled to the bottom chassis and the fixing rail is mounted on the mounting plate,

the fixing rail comprises a plurality of fixing hooks fixed to the mounting plate, the plurality of fixing hooks comprising first fixing hooks disposed at lower opposite ends of the fixing rail and second fixing hooks disposed at an upper end of the fixing rail.

2. The display apparatus according to claim 1, wherein the fixing rail comprises a plurality of support parts into which the printed circuit board is inserted and supported thereby, a plurality of dislocation prevention protrusions fixing the printed circuit board are inserted into the plurality of support parts to prevent dislocation of the printed circuit board, and an opening allowing the plurality of light sources to emit light toward the light guide plate.

3. The display apparatus according to claim 2, wherein the printed circuit board further comprises a plurality of dislocation prevention protrusion fixing grooves to which the plurality of dislocation prevention protrusions is fixed.

4. The display apparatus according to claim 3, wherein the mounting plate comprises first fixing holes configured to fix the first fixing hooks, second fixing holes configured to fix the second fixing hooks, and a plurality of through holes through which the plurality of dislocation prevention protrusions pass.

5. The display apparatus according to claim 1, wherein the bottom chassis comprises a seating portion on which the light guide plate is disposed, an extension portion extending from an edge of the seating portion, the extension portion comprising an inclined surface formed at an obtuse angle with respect to the seating portion, and a support surface provided at an end of the extension portion, the support surface configured to support the display panel and the optical sheets.

6. The display apparatus according to claim 5, wherein an area of the display panel and the optical sheets supported by the support surface is larger than an area of the light guide plate disposed on the seating portion.

7. The display apparatus according to claim 6, wherein the light source module emits light toward a lower end of the light guide plate, light emitted from the light source module is guided to the display panel, the display panel is disposed in front of the light guide plate, and a portion of the light emitted from the light source module is discharged out via a left side, a right side, and an upper end of the light guide plate.

8. The display apparatus according to claim 7, wherein the portion of light discharged out of the light guide plate via the left and the right sides and the upper end of the light guide plate is guided to edges of the display panel, the area of the display panel being larger than an area of the light guide plate along the extension portion of the bottom chassis.

9. The display apparatus according to claim 8, wherein a pattern configured to increase an amount of light guided by the light guide plate is formed at a left and a right edge of a front surface of the light guide plate.

10. The display apparatus according to claim 1, wherein the bottom chassis comprises a plurality of fixing parts to which the plurality of supporters is fixed, and

the plurality of fixing parts comprises an insertion hole into which the plurality of supporters are inserted, a fixing groove configured to fix the plurality of supporters inserted into the insertion hole, and a plurality of protruding portions constituting the fixing groove.

11. The display apparatus according to claim 10, wherein the plurality of supporters comprises a fixing protrusion inserted into the insertion hole and fixed by the fixing groove, a base supported by the fixing part, and a support protrusion configured to support the optical sheets.

12. The display apparatus according to claim 11, wherein the light guide plate comprises a support protrusion through hole through which the support protrusion passes,

the support protrusion through hole is provided in a number equal to the number of the plurality of supporters and the plurality of fixing parts, and

the light guide plate is fixed to the bottom chassis by the support protrusion penetrating the support protrusion through holes.

13. A display apparatus comprising:

a display panel;

a light guide plate configured to guide light to the display panel;

a light source module configured to emit light toward the light guide plate, the light source module comprising a printed circuit board, the printed circuit board comprising a conductive pattern, and a plurality of light sources mounted on the printed circuit board;

optical sheets disposed between the display panel and the light guide plate;

a bottom chassis, on which the light guide plate is disposed, the bottom chassis configured to support the display panel such that the display panel and the optical sheets are spaced apart from the light guide plate; and

a fixing rail mounted on the bottom chassis, the fixing rail configured to fix the light source module such that the plurality of light sources are spaced apart from the light guide plate at regular intervals,

wherein a mounting plate to mount the fixing rail thereon is coupled to the bottom chassis and the fixing rail is mounted on the mounting plate,

the fixing rail comprises a plurality of fixing hooks fixed to the mounting plate, the plurality of fixing hooks comprising first fixing hooks disposed at lower opposite ends of the fixing rail and second fixing hooks disposed at an upper end of the fixing rail.

14. The display apparatus according to claim 13, further comprising a plurality of supporters fixed to the bottom chassis, the plurality of supporters configured to support the optical sheets to prevent the optical sheets from sagging.

15. The display apparatus according to claim 14, wherein the plurality of supporters supports the optical sheets in a state of penetrating the light guide plate, and

the light guide plate is fixed to the bottom chassis by the plurality of supporters penetrating the light guide plate.

16. A display apparatus comprising:

a display panel;

a light guide plate configured to guide light to the display panel;

a light source module configured to emit light toward the light guide plate;

optical sheets disposed between the display panel and the light guide plate, the optical sheets being spaced apart from the light guide plate;

a bottom chassis comprising a seating portion on which the light guide plate is disposed, an extension portion extending from an edge of the seating portion, the extension portion comprising an inclined surface formed at an obtuse angle with respect to the seating portion, and a support surface provided at an end of the extension portion to support the optical sheets; and

a plurality of supporters fixed to the bottom chassis, the plurality of supporters being configured to support the optical sheets in a state of penetrating the light guide plate to prevent the optical sheets from sagging,

wherein the light source module comprises a printed circuit board, the printed circuit board comprising a conductive pattern and a plurality of light sources mounted on the printed circuit board,

the light source module is fixed to a fixing rail, the fixing rail allowing the plurality of light sources to be spaced apart from the light guide plate at regular intervals,

a mounting plate to mount the fixing rail thereon is coupled to the bottom chassis and the fixing rail is mounted on the mounting plate, and

the fixing rail comprises a plurality of fixing hooks fixed to the mounting plate, the plurality of fixing hooks comprising first fixing hooks disposed at lower opposite ends of the fixing rail and second fixing books disposed at an upper end of the fixing rail.