DISPLAY APPARATUS

• US 20200132923A1
• Filed: 10/11/2019
• Published: 04/30/2020
• Est. Priority Date: 10/30/2018
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: JEON, Taehee, KIM, Daeyoung, KIM, Hyungki, YOO, Yongsung, LEE, Kilhong, JEON, Dukjin
• Granted Patent: US 10,823,909 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package
• CPC Class Codes: G02B 6/0091 of the light source relative to the light guide G02B6/0021 takes precedence
• 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 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• 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 for guiding light to the display panel, a light source for irradiating the light guide plate with light, and a middle mold disposed between the display panel and the light guide plate and supporting an edge region of the light guide plate. The middle mold includes a groove formed on a surface adjacent to the light guide plate.

Claims

1. A display apparatus comprising:

a display panel;

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

a light source configured to irradiate the light guide plate with light; and

a middle mold disposed between the display panel and the light guide plate, the middle mold comprising;

a support surface configured to support the light guide plate, and

a groove formed at the support surface, adjacent to the light guide plate.

2. The display apparatus of claim 1, wherein the groove is surrounded by inner side surfaces which are formed in the middle mold and face an inside of the groove, and

one of the inner side surfaces is collinear with one side surface of the light guide plate.

3. The display apparatus of claim 1, wherein the groove is formed along an edge region of the light guide plate.

4. The display apparatus of claim 1, wherein a cross section of the groove is one of a quadrangle, a trapezoid, a semicircle, a polygon, or a T.

5. The display apparatus of claim 1, wherein the groove is surrounded by inner side surfaces which are formed in the middle mold and face an inside of the groove, and

one of the inner side surfaces comprises an inclined surface that is inclined toward the light source.

6. The display apparatus of claim 1, wherein the light source is disposed to face at least one from among a left side surface and a right side surface of the light guide plate.

7. The display apparatus of claim 1, wherein the light source comprises:

a substrate disposed to face a side surface of the light guide plate; and

a plurality of light emitting diodes (LEDs) disposed on the substrate.

8. The display apparatus of claim 7, wherein the substrate comprises a mounting surface at which the plurality of LEDs is mounted, and

the mounting surface is perpendicular to an incident surface of the light guide plate.

9. The display apparatus of claim 8, wherein the middle mold further comprises:

an outer frame; and

an intermediate supporter which protrudes inwardly from the outer frame and supports an edge region of the light guide plate.

10. The display apparatus of claim 9, wherein:

the outer frame comprises an outer coupling portion and an inner coupling portion that are configured to be coupled with a bottom chassis, and

an insertion groove formed between the outer coupling portion and the inner coupling portion.

11. The display apparatus of claim 10, wherein a part of the bottom chassis and the substrate of the light source are coupled to the middle mold by being inserted into the insertion groove.

12. The display apparatus of claim 10, wherein the inner coupling portion supports the mounting surface of the substrate.

13. The display apparatus of claim 10, wherein the insertion groove is formed at one side of the inner coupling portion, and

the groove is formed at another side of the inner coupling portion.

14. The display apparatus of claim 10, wherein the inner coupling portion is formed with a width corresponding to a distance between the substrate and the light guide plate.

15. The display apparatus of claim 9, wherein the groove is formed in the intermediate supporter.

16. The display apparatus of claim 1, further comprising:

a light absorbing member disposed between the middle mold and the light guide plate.

17. The display apparatus of claim 16, wherein the light absorbing member is disposed closer to the light guide plate than an opening of the groove.

18. The display apparatus of claim 1, wherein the groove comprises:

a first region that is formed to be perpendicular to the light guide plate, and

a second region that is formed to be perpendicular to the first region and extends in a direction toward the light source from the first region.

19. The display apparatus of claim 1, wherein the groove is surrounded by inner side surfaces which are formed in the middle mold and face an inside of the groove, and

a plurality of protrusions is formed in at least one of the inner side surfaces.

20. The display apparatus of claim 1, wherein the groove is surrounded by inner side surfaces which are formed in the middle mold and face an inside of the groove, and

at least one of the inner side surfaces is coated with a light absorbing member.