FLAT PANEL DISPLAY INTEGRATED TOUCH SCREEN PANEL

• US 20120127092A1
• Filed: 04/14/2011
• Published: 05/24/2012
• Est. Priority Date: 11/18/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Lee, Kyung-Jun
• Granted Patent: US 8,648,824 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• 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: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A flat panel display integrated with a touch screen panel according to an embodiment of the present invention includes: an upper substrate and a lower substrate each divided into a display region and first and second non-display regions around the display region; a plurality of sensing patterns in the display region of the upper substrate; a plurality of sensing lines in the first non-display region of the upper substrate; an FPC bonding pad unit including a plurality of bonding pads coupled with the sensing lines, in the second non-display region of the upper substrate; a sealant between the second non-display regions of the first substrate and the second substrate; and transparent conductive patterns arranged at a same distance from the sealant in the second non-display region of the upper substrate, the transparent conductive patterns overlapping the sealant.

Claims

1. A flat panel display integrated with a touch screen panel, comprising:

an upper substrate and a lower substrate each comprising a display region and first and second non-display regions around the display region;

a plurality of sensing patterns in the display region of the upper substrate;

a plurality of sensing lines in the first non-display region of the upper substrate;

an FPC bonding pad unit comprising a plurality of bonding pads coupled with the sensing lines, in the second non-display region of the upper substrate;

a sealant between the second non-display regions of the upper substrate and the lower substrate; and

transparent conductive patterns arranged at a same distance from the sealant in the second non-display region of the upper substrate, the transparent conductive patterns overlapping the sealant.

2. The flat panel display integrated with a touch screen panel according to claim 1, wherein the transparent conductive patterns comprise first transparent conductive patterns on the FPC bonding pad unit and second transparent conductive patterns on the second non-display region, other than the FPC bonding pad unit.

3. The flat panel display integrated with a touch screen panel according to claim 1, wherein the distance between the transparent conductive patterns is 300 μ

m.

4. The flat panel display integrated with a touch screen panel according to claim 1, wherein the bonding pads of the FPC bonding pad unit comprise a first region overlapping the sealant and a second region not overlapping the sealant, and configurations of the first and second regions are different for each of the regions.

5. The flat panel display integrated with a touch screen panel according to claim 4, wherein the first region of the bonding pad comprises:

a first insulating layer with a first open region in the second non-display region of the upper substrate;

a first transparent conductive pattern at the first open region; and

a second insulating layer with a second open region overlapping the first transparent conductive pattern such that the first transparent conductive pattern is exposed.

6. The flat panel display integrated with a touch screen panel according to claim 1, wherein the transparent conductive patterns comprise a same material as the sensing patterns.

7. The flat panel display integrated with a touch screen panel according to claim 4, wherein the second region of the bonding pads comprises:

an opaque metal pattern in the second non-display region of the upper substrate;

a first insulating layer with a first open region overlapping the opaque metal pattern such that the opaque metal pattern is exposed;

a first transparent conductive pattern in a region overlapping the exposed opaque metal pattern; and

a second insulating layer with a second open region overlapping the first transparent conductive pattern such that the first transparent conductive pattern is exposed.

8. The flat panel display integrated with a touch screen panel according to claim 7, wherein the opaque metal pattern comprises the same material as the sensing lines.

9. The flat panel display integrated with a touch screen panel according to claim 7, wherein the opaque metal pattern is spaced at a distance from the sealant.

10. The flat panel display integrated with a touch screen panel according to claim 9, wherein the distance is 100 um.

11. The flat panel display integrated with a touch screen panel according to claim 1, wherein the sensing patterns comprise X-sensing patterns and Y-sensing patterns on different layers.

12. The flat panel display integrated with a touch screen panel according to claim 11, wherein the X-sensing patterns are patterned to be coupled in a first direction and the Y-sensing patterns are patterned to be coupled in a second direction crossing the first direction.

13. The flat panel display integrated with a touch screen panel according to claim 1, wherein the sealant is melted by a laser, and the upper substrate and the lower substrate are bonded together by hardening of the sealant.