Touch screen panel

• US 20110221698A1
• Filed: 11/19/2010
• Published: 09/15/2011
• Est. Priority Date: 03/12/2010
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Ku, Ja-Seung, Jang, Brent, Ahn, Soon-Sung, Kim, Do-Youb
• Application Number:
  US12/926,465
• Publication Number:
  US 20110221698A1
• Time in Patent Office: Days
• US Class Current: 345/174
• 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
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Abstract

A capacitive touch screen panel including a plurality of first sensing patterns connected along a long-side direction of a screen; and a plurality of second sensing patterns connected along a short-side direction of the screen, wherein an area of each of the first sensing patterns is smaller than an area of each of the second sensing patterns.

Claims

1. A capacitive touch screen panel, comprising:

a plurality of first sensing patterns connected along a long-side direction of a screen; and

a plurality of second sensing patterns connected along a short-side direction of the screen,

wherein an area of each of the first sensing patterns is smaller than an area of each of the second sensing patterns.

2. The touch screen panel according to claim 1, wherein:

the first and second sensing patterns are patterned as a polygon with the same shape and size as one another as a basic form, and

each of the first sensing patterns has a concave portion recessed inwardly on each side of the polygon.

3. The touch screen panel as claimed in claim 2, wherein each of the second sensing patterns has a projection portion protruded outwardly on each of the sides of the polygon.

4. The touch screen panel as claimed in claim 2, wherein:

each of the second sensing patterns has a projection portion protruded outwardly on each of the sides of the polygon, and

an area of the projection portion corresponds to an area of the concave portion of the first sensing patterns.

5. The touch screen panel as claimed in claim 1, wherein:

the first and second sensing patterns have a rhombus as a basic form;

each of the first sensing patterns has a concave portion recessed inwardly on each side of the rhombus; and

each of the second sensing patterns has a projection portion protruded outwardly on each of the sides of the rhombus.

6. The touch screen panel as claimed in claim 5, wherein an area of the concave portion recessed inwardly on each of the first sensing patterns is about equal to an area of the projection portion protruded outwardly on each of the second sensing patterns.

7. The touch screen panel as claimed in claim 5, wherein:

the concave portion is a stepped concave portion having at least two different widths; and

the projection portion is a stepped projection portion having at least two different widths.

8. The touch screen panel as claimed in claim 1, wherein:

the first and second sensing patterns are disposed on an upper substrate of a display panel for displaying images so as to be integrally implemented with the display panel; and

a base capacitance generated between another component of the display panel and the plurality of first sensing patterns connected along the long-side direction of the screen is substantially identical to a base capacitance generated between the other component of the display panel and the plurality of the second sensing patterns connected along the short-side direction of the screen.