CONNECTION APPARATUS FOR ELECTRICALLY CONDUCTIVE PADS AND TOUCH CONTROL SCREEN

• US 20150015529A1
• Filed: 10/18/2013
• Published: 01/15/2015
• Est. Priority Date: 09/05/2012
• Status: Active Grant

• Current Assignee: Shanghai Tianma Micro-Electronics Company Limited (Tianma Microelectronics Company Limited)
• Original Assignee: Shanghai Tianma Micro-Electronics Company Limited (Tianma Microelectronics Company Limited)
• Inventors: Huang, Zhongshou, Li, Jialing, Ma, Jun
• Granted Patent: US 9,807,879 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 2201/122 having a particular pattern
• CPC Class Codes: G02F 2202/28 Adhesive materials or arrangements
• CPC Class Codes: G02F 2203/01 transmissive
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: H05K 1/111 Pads for surface mounting, e.g. lay-out
• CPC Class Codes: H05K 1/144 Stacked arrangements of planar printed circuit boards
• CPC Class Codes: H05K 2201/0108 Transparent
• CPC Class Codes: H05K 2201/042 Stacked spaced PCBs; Planar parts of folded flexible circuits having mounted components in between or spaced from each other
• CPC Class Codes: H05K 2201/0969 Apertured conductors
• CPC Class Codes: H05K 2201/10136 Liquid Crystal display [LCD]
• CPC Class Codes: H05K 3/323 by applying an anisotropic conductive adhesive layer over an array of pads
• CPC Class Codes: H05K 3/368 parallel to each other H05K3/361 takes precedence
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A connection apparatus for electrically conductive pads includes a first substrate and a second substrate arranged in opposition, wherein a plurality of first electrically conductive pads are arranged on the inside of the first substrate, and a plurality of second electrically conductive pads are arranged on the inside of the second substrate. An electrically conductive glue is arranged between the first electrically conductive pads and the second electrically conductive pads, and the first electrically conductive pads each include a first body, the second electrically conductive pads each include a second body, and the first body and/or the second body includes a hollow portion or portions. The electrically conductive pads with a hollow portion(s) allowing light rays to illuminate and solidify the electrically conductive for bonding and interconnecting the upper and lower electrically conductive pads.

Claims

1. A connection apparatus for electrically conductive pads, comprising:

a first substrate and a second substrate arranged in opposition such that an inside surface of the first substrate faces an inside surface of the second substrate;

a plurality of first electrically conductive pads arranged on the inside surface of the first substrate, and a plurality of second electrically conductive pads arranged on the inside surface of the second substrate; and

an electrically conductive glue layer arranged between the first electrically conductive pads and the second electrically conductive pads;

wherein the first electrically conductive pads each comprises a first body, the second electrically conductive pads each comprises a second body, and one or both of the first body and the second body comprises one or more hollow portions.

2. The connection apparatus for electrically conductive pads according to claim 1, wherein one or both of the first body and the second body is in a shape of one or a combination of:

a circle, a semicircle, an ellipse, a sector, an arc, and a polygon.

3. The connection apparatus for electrically conductive pads according to claim 1, wherein the first electrically conductive pads each further comprises a first lead terminal connected to the first body;

and the second electrically conductive pads each further comprises a second lead terminal connected to the second body.

4. The connection apparatus for electrically conductive pads according to claim 3, wherein the first body and the first lead terminal are made of a same metal layer;

and the second body and the second lead terminal are made of a same metal layer.

5. The connection apparatus for electrically conductive pads according to claim 1, wherein the hollow portions are distributed in the body and shaped in dots.

6. The connection apparatus for electrically conductive pads according to claim 1, wherein the hollow portions are distributed in the body and shaped in grids.

7. The connection apparatus for electrically conductive pads according to claim 3, wherein the first body and the first lead terminal are covered with a transparent electrically-conductive layer.

8. The connection apparatus for electrically conductive pads according to claim 7, wherein the transparent electrically-conductive layer has a same external outline as that of the first body.

9. The connection apparatus for electrically conductive pads according to claim 3, wherein the second body and the second lead terminal are covered with a transparent electrically-conductive layer.

10. The connection apparatus for electrically conductive pads according to claim 9, wherein the transparent electrically-conductive layer has a same external outline as that of the second body.

11. The connection apparatus for electrically conductive pads according to claim 1, wherein the hollow portions are distributed in the body and shaped in strips.

12. The connection apparatus for electrically conductive pads according to claim 1, wherein the hollow portion is in a same shape as that of the body and located centrally in the body.

13. The connection apparatus for electrically conductive pads according to claim 1, wherein the electrically conductive glue comprises non-conductive glue body and electrically conductive balls, and the electrically conductive balls have respective ones of the first electrically conductive pads electrically connected to corresponding ones of the second electrically conductive pads and insulated from each other.

14. The connection apparatus for electrically conductive pads according to claim 1, wherein the first substrate is one of a color filter substrate and an array substrate, and the second substrate is the other of the color filter substrate and the array substrate.

15. A touch control screen, comprising a connection apparatus for electrically conductive pads, wherein:

the connection apparatus for electrically conductive pads comprises;

a first substrate and a second substrate arranged in opposition;

a plurality of first electrically conductive pads arranged on an inside of the first substrate, and a plurality of second electrically conductive pads arranged on an inside of the second substrate; and

electrically conductive glue arranged between the first electrically conductive pads and the second electrically conductive pads;

wherein the first electrically conductive pads each comprise a first body, the second electrically conductive pads each comprise a second body, and the first body and/or the second body comprises a hollow portion or portions;

wherein the first substrate is arranged with touch control electrodes and a plurality of signal leads connected to the touch control electrodes, and respective ones of the signal leads are electrically connected to corresponding ones of the first electrically conductive pads; and

a touch control circuit comprising a plurality of signal lines, wherein respective ones of the signal lines are electrically connected to corresponding ones of the second electrically conductive pads.

16. The touch control screen according to claim 15, wherein the first body and/or the second body is in a shape of one or a combination of:

a circle, a semicircle, an ellipse, a sector, an arc and a polygon.

17. The touch control screen according to claim 15, wherein:

the hollow portions are distributed in the body in dots;

or

the hollow portions are distributed in the body in grids;

or

the hollow portions are distributed in the body in strips;

or

the hollow portion is in a same shape as that of the body and located centrally in the body.

18. The touch control screen according to claim 15, wherein the first electrically conductive pads each further comprises a first lead terminal connected to the first body;

and the second electrically conductive pads each further comprise a second lead terminal connected to the second body.

19. The touch control screen according to claim 15, wherein the electrically conductive glue comprises a glue body and electrically conductive balls, and the electrically conductive balls have respective ones of the first electrically conductive pads electrically connected to corresponding ones of the second electrically conductive pads and insulated from each other.

20. The touch control screen according to claim 15, wherein the first substrate is one of a color filter substrate and an array substrate, and the second substrate is the other of the color filter substrate and the array substrate.