Touch screen panel in resistive type

• US 8,947,393 B2
• Filed: 05/10/2011
• Issued: 02/03/2015
• Est. Priority Date: 11/08/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Hwang, Kyung-Ho
• Primary Examiner(s): Wang, Quan-Zhen
• Assistant Examiner(s): Lin, Chun-Nan
• Application Number:
  US13/104,861
• Publication Number:
  US 20120113048A1
• Time in Patent Office: 1,365 Days
• Field of Search: 345173-184, 178/18.05, 178/18.06
• US Class Current: 345/174
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires

Abstract

A resistive touch screen panel includes: a first substrate having a first side; a second substrate opposing the first substrate, the second substrate having a first side facing the first side of the first substrate; a plurality of detecting electrodes arranged in a first direction on the first side of the first substrate; a plurality of power electrodes arranged in a second direction that crosses the first direction on the first side of the second substrate; a power supply unit for supplying power to the power electrodes and the detecting electrodes; and a plurality of resistors between the power supply unit and the power electrodes, in which the resistors have resistances determined by 2ⁿC (n is a nonnegative integer and C is a constant) and the resistances corresponding to different ones of the power electrodes are different.

Claims

1. A resistive touch screen panel comprising:

a first substrate having a first side;

a second substrate opposing the first substrate, the second substrate having a first side facing the first side of the first substrate;

a plurality of detecting electrodes arranged in a first direction on the first side of the first substrate;

a plurality of power electrodes arranged in a second direction that crosses the first direction on the first side of the second substrate;

a power supply unit for supplying power to the power electrodes; and

a plurality of resistors between the power supply unit and at least a portion of the power electrodes,

wherein;

the resistors have resistances determined by 2ⁿC (n is a nonnegative integer and C is a constant) and the resistances corresponding to different ones of the power electrodes are different,

the power electrodes are arranged at regular intervals, each of the power electrodes comprising a power line extending in the first direction, and a plurality of division electrodes spaced from the power line in the second direction and electrically connected to the power line; and

the division electrodes of the power electrodes have circular shapes.

2. The resistive touch screen panel according to claim 1, further comprising one or more dot spacers between the first substrate and the second substrate such that the detecting electrodes and the power electrodes are spaced apart from each other.

3. The resistive touch screen panel according to claim 1, further comprising a touch detecting unit for detecting current from the detecting electrodes.

4. The resistive touch screen panel according to claim 1, wherein the detecting electrodes are arranged at regular intervals and comprise division electrodes electrically connected with each other.

5. The resistive touch screen panel according to claim 4, wherein the division electrodes of the detecting electrodes have circular shapes.

6. The resistive touch screen panel according to claim 1, further comprising separate ones of the resistors for separate ones of the division electrodes.

7. The resistive touch screen panel according to claim 1, wherein the resistors are electrically coupled in parallel to the power supply unit.