Display apparatus having a durable flexible circuit board arrangement

Patent metadata

Field	Value
Publication number	US-11112629-B2
Application number	US-201916430039-A
Country	US
Kind code	B2
Filing date	Jun 3, 2019
Priority date	Jul 6, 2018
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

A display apparatus includes a display panel configured to display an image. A first mold is disposed under the display panel and includes a plurality of sidewall portions. A second mold is disposed adjacent to one of the sidewall portions and is coupled to the first mold. At least one flexible circuit board is connected to the display panel and is disposed between the first and second molds. The second mold includes a bottom mold covering one edge area of a bottom surface of the first mold. A cover mold covers the one sidewall portion of the first mold. A first distance between an inner side surface of the cover mold and an outer side surface of the one sidewall portion of the first mold is substantially constant.

First claim

What is claimed is:

1. A display apparatus, comprising:
a display panel configured to display an image;
a first mold disposed under the display panel and comprising a plurality of sidewall portions;
a second mold disposed adjacent to one of the plurality of sidewall portions and coupled to the first mold; and
at least one flexible circuit board which is connected to the display panel and of which a portion is bent downward, the at least one flexible circuit board being disposed between the first mold and the second mold,
wherein the second mold comprises:
a bottom mold at least partially covering one edge area of a bottom surface of the first mold; and
a cover mold bent upward from the bottom mold to cover the one sidewall portion,
wherein a first distance between an inner side surface of the cover mold and an outer side surface of the one sidewall portion of the plurality of sidewall portions is substantially constant across an entirety thereof.

2. The display apparatus of claim 1 , wherein an outer side surface of the cover mold has a round shape.

3. The display apparatus of claim 2 , wherein the inner side surface of the cover mold is parallel to the outer side surface of the one sidewall portion of the plurality of sidewall portions.

4. The display apparatus of claim 3 , wherein the inner side surface of the cover mold includes a flat surface.

5. The display apparatus of claim 1 , wherein the first distance is about 0.5 mm or less.

6. The display apparatus of claim 1 , wherein the first mold further comprises:
a support portion which has a frame shape and on which the display panel is disposed; and
a bottom portion which is disposed under the support portion to define the bottom surface of the first mold, wherein the bottom is connected to the support portion through the plurality of sidewall portions.

7. The display apparatus of claim 6 , wherein the flexible circuit board comprises:
a first portion connected to the display panel;
a second portion which is adjacent to the first portion and is bent downward to be disposed on the outer side surface of the one sidewall portion of the plurality of sidewall portions; and
a third portion bent from the second portion so as to be parallel to the first portion,
wherein the third portion is disposed between the bottom mold and the bottom portion of the first mold.

8. The display apparatus of claim 7 , wherein a second distance between a top surface of the bottom mold and the bottom portion of the first mold is substantially constant across an entirety thereof.

9. The display apparatus of claim 8 , wherein the second distance is about 0.5 mm or less.

10. The display apparatus of claim 8 , wherein the first distance is equal to the second distance.

11. The display apparatus of claim 7 , further comprising:
a driving chip mounted on the flexible circuit board and comprising at least one driving element configured to drive the display panel.

12. The display apparatus of claim 11 , wherein an insertion recess is recessed inwardly from one of the outer side surface of the one sidewall portion of the plurality of sidewall portions and a bottom surface of the bottom portion of the first mold, and the driving chip is disposed within the insertion recess.

13. The display apparatus of claim 12 , wherein the driving chip is disposed on the third portion of the flexible circuit board, and
wherein the insertion recess is recessed inwardly from the bottom surface of the bottom portion.

14. The display apparatus of claim 7 , wherein the second mold further comprises:
a step-difference compensation portion extending from an upper portion of the cover mold in a direction parallel to the bottom mold,
wherein the step-difference compensation portion is disposed on the first portion of tote flexible circuit board.

15. The display apparatus of claim 14 , wherein a thickness of the step-difference compensation portion is equal to the shortest distance between a top surface of the first portion of the flexible circuit board and a bottom surface of a cover member disposed on the display panel.

16. The display apparatus of claim 7 , wherein each of the plurality of sidewall portions comprises:
a lower sidewall portion bent downward from an outer side of the support portion so as to be connected to the bottom portion; and
an upper sidewall portion bent upward from the outer side of the support portion to cover a portion of a side surface of the display panel.

17. The display apparatus of claim 16 , wherein each of the plurality of sidewall portions has curved surfaces defined in areas adjacent to bent areas of the flexible circuit board.

18. The display apparatus of claim 1 , further comprising:
at least one first connection member coupling the first mold and the second mold to each other.

19. The display apparatus of claim 18 , wherein at least one first connection recess is defined at the inner side surface of the cover mold, and the first connection member is disposed within the first connection recess.

20. The display apparatus of claim 18 , wherein the first connection member is a screw.

21. The display apparatus of claim 18 , wherein the first connection member is provided in plural,
wherein the plurality of first connection members are spaced apart from each other on the one sidewall portion of the plurality of sidewall portions, and
wherein the flexible circuit board is disposed between the plurality of first connection members.

22. The display apparatus of claim 1 , wherein the second mold is provided in plural, and
wherein the plurality of second molds are disposed adjacent to the plurality of sidewall portions of the first mold in one-to-one correspondence and are coupled to the first mold.

23. The display apparatus of claim 1 , further comprising:
a cover member disposed on the display panel,
wherein a top surface of the cover member is connected to an outer side surface of the cover mold.

24. The display apparatus of claim 1 , further comprising:
a cover member of which at least a portion is disposed on the display panel,
wherein another portion of the cover member is bent downward to cover an outer side surface of the cover mold and a bottom surface of the bottom mold.

25. The display apparatus of claim 24 , wherein the cover member is a window.

26. The display apparatus of claim 24 , wherein the cover member includes a polarizing layer.

27. The display apparatus of claim 24 , further comprising:
a second connection member fixing the cover member to the bottom mold.

28. The display apparatus of claim 27 , wherein the second connection member at least partially penetrates the cover member and the bottom mold so as to be disposed within a second connection recess defined in the first mold.

29. The display apparatus of claim 1 , wherein the first mold and the second mold include a same material.

30. The display apparatus of claim 1 , wherein the first mold includes a plastic material.

31. The display apparatus of claim 1 , wherein the second mold includes a metal material.

32. The display apparatus of claim 1 , further comprising:
a backlight unit disposed under the display panel, to the backlight being configured to provide light to the display panel,
wherein the backlight unit is received in

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Tae-Chang
• Baek Myunghun
• Jeon Jae-Hwan
• Kang Giyoung

Classifications

• G02F1/13332

  Front frames · CPC title

• G02F1/133317

  Intermediate frames, e.g. between backlight housing and front frame · CPC title

• G02F1/133305 Primary

  Flexible substrates, e.g. plastics, organic film · CPC title

• G02F1/133314

  Back frames · CPC title

• G02F1/133308 Primary

  Support structures for LCD panels, e.g. frames or bezels · CPC title