Display device

Patent metadata

Field	Value
Publication number	US-2018184530-A1
Application number	US-201715817393-A
Country	US
Kind code	A1
Filing date	Nov 20, 2017
Priority date	Dec 23, 2016
Publication date	Jun 28, 2018
Grant date	—

Abstract

A display device includes a display panel, a bezel, at least one flexible circuit board, and a rigid circuit board. The display panel includes a display surface. The bezel includes a top wall, a bottom wall, and a side wall between the top wall and the bottom wall. The top wall is configured to support the display panel. The flexible circuit board includes a first portion, a second portion, and a connection portion between the first portion and the second portion. The first portion of the flexible circuit board is connected to the display panel. At least part of the rigid circuit board overlaps and faces the bottom wall of the bezel. The rigid circuit board includes an edge extending outwardly and beyond the side wall. The edge of the rigid circuit board includes at least one recess. The second portion of the flexible circuit board is connected to the rigid circuit board. At least part of the connection portion of the flexible circuit board is accommodated in the recess. On a projection plane parallel to the display surface, the flexible circuit board includes a margin which is closest part of the flexible circuit board to the edge of the rigid circuit board, and the margin of the flexible circuit board is between the side wall of the bezel and the edge of the rigid circuit board.

First claim

What is claimed is:

1 . A display device, comprising:
a display panel, wherein the display panel comprises a display surface; a bezel, wherein the bezel comprises a top wall, a bottom wall, and a side wall between the top wall and the bottom wall, and the top wall supports the display panel; at least one flexible circuit board, wherein the flexible circuit board comprises a first portion, a second portion, and a connection portion between the first portion and the second portion, and the first portion of the flexible circuit board is connected to the display panel; and a rigid circuit board, wherein at least part of the rigid circuit board overlaps and faces the bottom wall of the bezel, the rigid circuit board comprises an edge extending outwardly and beyond the side wall, the edge of the rigid circuit board comprises at least one recess, the second portion of the flexible circuit board is connected to the rigid circuit board, and at least part of the connection portion of the flexible circuit board is accommodated in the recess, on a projection plane parallel to the display surface, the flexible circuit board comprises a margin which is closest part of the flexible circuit board to the edge of the rigid circuit board, and the margin of the flexible circuit board is between the side wall of the bezel and the edge of the rigid circuit board.

2 . The display device according to claim 1 , wherein the recess comprises an inner side parallel to the edge, and on the projection plane parallel to the display surface, the side wall of the bezel is between the edge of the rigid circuit board and the inner side of the recess of the rigid circuit board.

3 . The display device according to claim 1 , wherein the display device comprises a frame body, at least part of the frame body surrounds the display panel, and the frame body supports the display panel.

4 . The display device according to claim 3 , wherein the frame body comprises a side surface which is adjacent to the edge of the rigid circuit board, the side surface of the frame body does not extend beyond the side wall of the bezel, the side surface comprises an end portion in a direction away from the rigid circuit board, and the end portion of the frame body is higher than the first portion of the flexible circuit board.

5 . The display device according to claim 4 , wherein the display device comprises a tape stuck between the display panel and a surface, which faces the rigid circuit board, of the bottom wall of the bezel, the tape surrounds the flexible circuit board and the rigid circuit board, and the tape is in contact with the end portion of the frame body and the edge of the rigid circuit board.

6 . The display device according to claim 5 , wherein the bezel comprises an extension wall, the extension wall comprises a first segment and a second segment that are connected, the first segment of the extension wall extends out from the side wall away from the rigid circuit board, the second segment of the extension wall is connected to the first segment and bends toward the edge of the rigid circuit board, the second segment of the extension wall comprises an end part, and the tape is further in contact with the end part of the second segment of the extension wall.

7 . The display device according to claim 3 , wherein the frame body comprises an engagement portion, and the engagement portion of the frame body extends into accommodation space surrounded by the top wall, the bottom wall, and the side wall.

8 . The display device according to claim 1 , wherein the bezel comprises at least one baffle wall, the baffle wall extends out from the side wall toward a direction away from the rigid circuit board, and an end part of the baffle wall is higher than the first portion of the flexible circuit board.

9 . The display device according to claim 8 , wherein the baffle wall does not overlap with the rigid circuit board on the projection plane parallel to the display surface.

10 . The display device according to claim 8 , wherein the display device comprises a tape stuck between the display panel and a surface, which faces the rigid circuit board, of the bottom wall of the bezel, the tape surrounds the flexible circuit board and the rigid circuit board, and the tape is in contact with the end part of the baffle wall of the bezel and the edge of the rigid circuit board.

11 . The display device according to claim 10 , wherein the bezel comprises an extension wall, the extension wall comprises a first segment and a second segment that are connected, the first segment of the extension wall extends out from the side wall away from the rigid circuit board, the second segment of the extension wall is connected to the first segment and bends toward the edge of the rigid circuit board, the second segment of the extension wall comprises an end part, and the tape is further in contact with the end part of the second segment of the extension wall.

12 . The display device according to claim 1 , wherein the bezel comprises an extension wall, the extension wall comprises a first segment and a second segment that are connected, the first segment of the extension wall extends out from the side wall away from the rigid circuit board, and the second segment of the extension wall is connected to the first segment and bends toward the edge of the rigid circuit board.

13 . The display device according to claim 12 , wherein the second segment of the extension wall comprises an end part, and on the projection plane parallel to the display surface, the end part of the second segment of the extension wall does not extend outwardly and beyond the edge of the rigid circuit board.

14 . The display device according to claim 12 , wherein the at least one flexible circuit board is two flexible circuit boards, and the extension wall is located between the flexible circuit boards.

15 . The display device according to claim 12 , wherein the extension wall overlaps with the rigid circuit board on the projection plane parallel to the display surface.

16 . The display device according to claim 1 , wherein the display device comprises a pad and a chip, the display panel comprises a first substrate and a second substrate, the second substrate is closer to the top wall of the bezel compared with the first substrate, the chip is disposed on a surface, back to the top wall, of the second substrate, the pad is disposed on the surface of the second substrate, and at least part of the pad surrounds the chip.

17 . The display device according to claim 16 , wherein the display device comprises a tape stuck on the pad.

18 . The display device according to claim 16 , wherein the display device comprises a tape stuck on the first substrate.

Assignees

• Au Optronics Corp

Inventors

• Wang Chih-Chung

Classifications

• G02F1/13

  based on liquid crystals, e.g. single liquid crystal display cells · CPC title

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• H05K2201/10128

  Display · CPC title

• G09F9/00 Primary

  Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) · CPC title

• H05K1/147

  at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence) · CPC title