CAPACITIVE TOUCH SCREEN PANEL DISPLAY

• US 20120206402A1
• Filed: 02/08/2012
• Published: 08/16/2012
• Est. Priority Date: 02/11/2011
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Seung Jun, WON, Seung Jae, BAEK, Il Seob, NAM, Kyung Han
• Application Number:
  US13/368,648
• Publication Number:
  US 20120206402A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/044 by capacitive means

Abstract

A capacitive touch screen panel display, in which a touch sensor pattern may be prevented from being damaged during an ElectroStatic Discharge (ESD) test, is provided. The capacitive touch screen panel display includes a plurality of trace lines for transmitting touch signals from touch sensor patterns to a touch screen flexible printed circuit board, and a first length extension unit formed on a shortest trace line among the plurality of trace lines to extend a trace line length. Thus, touch sensor patterns may be prevented from being broken during the ESD test.

Claims

1. A capacitive touch screen panel display comprising:

a plurality of trace lines for transmitting touch signals from touch sensor patterns to a touch screen flexible printed circuit board; and

a first length extension unit formed on a shortest trace line among the plurality of trace lines to extend a trace line length.

2. The capacitive touch screen panel display of claim 1, wherein the total resistance of the shortest trace line and the first length extension unit is substantially the same as the resistance of an adjacent trace line.

3. The capacitive touch screen panel display of claim 2, wherein at least one second length extension unit is formed on at least one adjacent trace line, respectively.

4. The capacitive touch screen panel display of claim 3, wherein the at least one second length extending unit formed on the at least one adjacent trace line comprises a meander line shape.

5. The capacitive touch screen panel display of claim 1, wherein the first length extending unit formed on the shortest trace lines comprises a meander line shape.

6. A capacitive touch screen panel display comprising:

a plurality of touch sensor patterns for detecting a touch on the capacitive touch screen panel display;

a plurality of trace lines respectively connected on one end to the plurality of touch sensor patterns for transmitting touch signals; and

a plurality of length extension units respectively formed on the plurality of trace lines.

7. The capacitive touch screen panel display of claim 6, wherein each of the plurality of length extension units extends the respective plurality of trace lines to have substantially the same total length.

8. The capacitive touch screen panel display of claim 7, wherein each of the plurality of length extension units comprises a meander line shape.

9. The capacitive touch screen panel display of claim 6, wherein the total resistance of each of the plurality of trace lines and respective length extension units is substantially the same.

10. The capacitive touch screen panel display of claim 9, wherein each of the plurality of trace lines is connected on another end to a plurality of contacts of a touch screen flexible printed circuit board.