Alignment device and alignment method

Patent metadata

Field	Value
Publication number	US-2017211782-A1
Application number	US-201515328804-A
Country	US
Kind code	A1
Filing date	Jan 16, 2015
Priority date	Sep 24, 2014
Publication date	Jul 27, 2017
Grant date	—

Abstract

The present application discloses an alignment device and an alignment method for accurately aligning goldfingers of a flexible printed circuit board with electrodes of a substrate to be aligned under a manual pressing mode. The alignment device comprises a light regulating member and a light source provided at a side of the light regulating member. The light regulating member comprises a plurality of shading regions and a plurality of transmitting regions alternately provided along a length direction of the light regulating member. The plurality of transmitting regions have shapes identical to those of electrodes on a substrate to be aligned, and positions of the plurality of transmitting regions are corresponding to those of the plurality of electrodes on the substrate to be aligned.

First claim

1 . An alignment device, comprising a light regulating member and a light source provided at a side of the light regulating member, the light regulating member comprising a plurality of shading regions and a plurality of transmitting regions alternately provided along a length direction of the light regulating member,
wherein the plurality of transmitting regions have shapes identical to those of electrodes on a substrate to be aligned, and positions of the plurality of transmitting regions are corresponding to those of the plurality of electrodes on the substrate to be aligned.

2 . The alignment device according to claim 1 , wherein the light source is a visible light source.

3 . The alignment device according to claim 1 , further comprising a base for placing the substrate to be aligned, and the light source and the light regulating member being provided at two sides of the base, respectively,
wherein the base comprises a mount area corresponding to the light regulating member, and light emitted by the light source is able to pass through the mount area.

4 . The alignment device according to claim 3 , wherein the light regulating member is attached onto the mount area.

5 . The alignment device according to claim 4 , wherein the light regulating member comprises a plurality of black tapes and a plurality of transparent tapes alternately arranged along the length direction of the light regulating member, to serve as the plurality of shading regions and the plurality of transmitting regions, respectively.

6 . The alignment device according to claim 3 , wherein a plurality of positioning members are provided on the base to define a position for the substrate to be aligned, such that the plurality of electrodes on the substrate to be aligned overlap the plurality of transmitting regions.

7 . The alignment device according to claim 3 , further comprising, above the base, a moving member for moving a flexible printed circuit board to a position above the substrate to be aligned and causing a plurality of goldfingers on the flexible printed circuit board to be aligned and in contact with the plurality of electrodes on the substrate to be aligned.

8 . The alignment device according to claim 3 , wherein the base and the light regulating member are formed as an integrated structure.

9 . An alignment method using an alignment device, the alignment device comprising a light regulating member and a light source provided on a side of the light regulating member, the light regulating member comprising a plurality of shading regions and a plurality of transmitting regions alternately provided along a length direction of the light regulating member, wherein the plurality of transmitting regions have shapes identical to those of electrodes on a substrate to be aligned, and positions of the plurality of transmitting regions are corresponding to those of the plurality of electrodes on the substrate to be aligned, the alignment method comprising:
placing the substrate to be aligned on the alignment device such that the plurality of electrodes on the substrate to be aligned overlap the plurality of transmitting regions of the light regulating member, and turning on the light source; pressing a flexible printed circuit board onto the substrate to be aligned, and aligning a plurality of goldfingers on the flexible printed circuit board with the plurality of electrodes on the substrate to be aligned; and observing whether there is light leak at edges of the goldfingers.

10 . The alignment method according to claim 9 , further comprising:
when it is observed that there is light leak at the edges of the goldfingers, adjusting a position of the flexible printed circuit board until there is no light leak at the edges of the goldfingers.

11 . The alignment device according to claim 2 , further comprising a base for placing the substrate to be aligned, and the light source and the light regulating member being provided at two sides of the base, respectively,
wherein the base comprises a mount area corresponding to the light regulating member, and light emitted by the light source is able to pass through the mount area.

12 . The alignment device according to claim 11 , wherein the light regulating member is attached onto the mount area.

13 . The alignment device according to claim 12 , wherein the light regulating member comprises a plurality of black tapes and a plurality of transparent tapes alternately arranged along the length direction of the light regulating member, to serve as the plurality of shading regions and the plurality of transmitting regions, respectively.

14 . The alignment device according to claim 11 , wherein a plurality of positioning members are provided on the base to define a position for the substrate to be aligned, such that the plurality of electrodes on the substrate to be aligned overlap the plurality of transmitting regions.

15 . The alignment device according to claim 11 , further comprising, above the base, a moving member for moving a flexible printed circuit board to a position above the substrate to be aligned and causing a plurality of goldfingers on the flexible printed circuit board to be aligned and in contact with the plurality of electrodes on the substrate to be aligned.

16 . The alignment device according to claim 11 , wherein the base and the light regulating member are formed as an integrated structure.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Liu Jinshan
• Deng Liguang
• Chen Zhen
• He Quanhua

Classifications

• H05K1/189

  characterised by the use of flexible or folded printed circuits · CPC title

• F21V11/02 Primary

  using parallel laminae or strips, e.g. of Venetian-blind type (F21V11/06 takes precedence) · CPC title

• H05K3/303 Primary

  with surface mounted components (H05K3/32 takes precedence) · CPC title

• G02F1/13458

  Terminal pads · CPC title

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title