Flat panel display integrated with touch screen panel

• US 20110057892A1
• Filed: 05/27/2010
• Published: 03/10/2011
• Est. Priority Date: 09/04/2009
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kwak, Won-Kyu, Kim, Do-Youb
• Granted Patent: US 8,531,415 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• 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 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• 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: H10K 59/40 OLEDs integrated with touch screens

Abstract

A flat panel display integrated with a touch screen panel comprises a lower substrate, an upper substrate having a display area and first and second non-display areas corresponding to a display area, first and second non-display areas of the lower substrate, respectively, sense patterns on the display area of the upper substrate, sense lines on the first non-display area of the upper substrate, metal patterns on areas between the sense lines and on an outer side of the sense lines, pixels on the display area of the lower substrate, a driving circuit configured to drive the pixels, and sealant disposed on the second non-display area of the lower substrate so as to bond the upper substrate to the lower substrate. The first and second non-display areas of the lower substrate are outside the display area. The driving circuit is on the first non-display area of the lower substrate.

Claims

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

a lower substrate having a display area, a first non-display area, and a second non-display area, the first and second non-display areas being outside the display area;

an upper substrate having a display area, a first non-display area, and a second non-display area corresponding to the display area, the first non-display area, and the second non-display area of the lower substrate, respectively;

a plurality of sense patterns on the display area of the upper substrate;

a plurality of sense lines on the first non-display area of the upper substrate;

metal patterns on areas between the plurality of sense lines and on an outer side of the plurality of sense lines;

a plurality of pixels on the display area of the lower substrate;

a driving circuit configured to drive the plurality of pixels, the driving circuit being on the first non-display area of the lower substrate; and

sealant disposed on the second non-display area of the lower substrate so as to bond the upper substrate to the lower substrate.

2. The flat panel display integrated with the touch screen panel as claimed in claim 1, wherein the metal patterns are made of the same material as the sense lines.

3. The flat panel display integrated with the touch screen panel as claimed in claim 1, wherein each of the metal patterns on the areas between the sense lines is of an island shape, and is not electrically coupled with the sense lines.

4. The flat panel display integrated with the touch screen panel as claimed in claim 1, wherein the sense patterns include an X sense pattern and a Y sense pattern arranged on different layers.

5. The flat panel display integrated with the touch screen panel as claimed in claim 4, wherein

the X pattern includes a plurality of first units,

each of the first units includes a plurality of first sense patterns arranged in a first direction,

the Y pattern includes a plurality of second units,

each of the second units includes a plurality of second sense patterns arranged in a second direction different from the first direction,

adjacent first sense patterns in each of the first units are electrically coupled to each other in a first direction, and

adjacent second sense patterns in each of the second units are electrically coupled to each other in the second direction.

6. The flat panel display integrated with the touch screen panel as claimed in claim 1, wherein the driving circuit includes at least one of a data driving circuit and a scan driving circuit.

7. The flat panel display integrated with the touch screen panel as claimed in claim 1, wherein the sense lines and the metal patterns are arranged on the first non-display area of the upper substrate so as to shield the driving circuit from laser light irradiated toward the sealant.

8. The flat panel display integrated with the touch screen panel as claimed in claim 7, wherein the sealant is melted by the irradiated laser light, and the melted sealant is cured so as to bond the upper substrate to the lower substrate.