TOUCH SCREEN PANEL AND FABRICATION METHOD THEREOF

• US 20100090981A1
• Filed: 09/10/2009
• Published: 04/15/2010
• Est. Priority Date: 10/14/2008
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Jae-Yong, JI, Young-Bae
• Application Number:
  US12/556,830
• Publication Number:
  US 20100090981A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

A touch screen panel includes a window having one curved surface and mounted on a front surface of a display element. A touch screen element is attached to the curved surface of the window, wherein the touch screen element is processed to have a curvature corresponding to a curvature of the curved surface of the window prior to being attached to the curved surface of the window. The touch screen panel operates in a resistive scheme and can be mounted on the window shaped like a curve. The invention makes it possible to manufacture the information device having various designs in accordance with consumer demands yet retaining a low cost.

Claims

1. A touch screen panel, comprising:

a display element;

a window having a first curved surface and mounted on a front surface of the display element; and

a touch screen element attached to the window, wherein the touch screen element is processed to have a curvature corresponding to a curvature of the curved surface of the window prior to being attached to the curved surface of the window.

2. The touch screen panel as claimed in claim 1, wherein the touch screen is attached to the curved surface of said window.

3. The touch screen panel as claimed in claim 1, wherein the touch screen element comprises:

a pair of Indium-Tin Oxide films(ITO films) arranged so that a first film of said pair of ITO films is disposed on a second film of said pair of ITO films; and

a plurality of dot spacers arranged between the pair of ITO films.

4. The touch screen panel as claimed in claim 3, wherein the touch screen element is processed to have a curvature where the dot spacers are disposed between the ITO films.

5. The touch screen panel as claimed in claim 3, wherein the ITO films are manufactured with a curvature, respectively, for assembly as the touch screen element having a curved surface.

6. The touch screen panel as claimed in claim 3, wherein the ITO films are fastened by a double-sided adhesive tape arranged along edges of the ITO films, respectively.

7. The touch screen panel as claimed in claim 1, wherein the touch screen element comprises a resistive touch screen.

8. The touch screen panel as claimed in claim 2, wherein the touch screen element comprises a resistive touch screen.

9. A method of manufacturing a touch screen panel, comprising the steps of:

providing a window having a curved surface;

providing a touch screen element having a curvature corresponding to a curvature of the curved surface of the window; and

attaching the touch screen element to the window.

10. The method as claimed in claim 9, wherein the manufacturing the touch screen element comprises the steps of:

preparing a pair of ITO films; and

attaching the ITO films to each other where a plurality of dot spacers are arranged between the ITO films.

11. The method as claimed in claim 10, further comprising a step of processing the ITO films to have a curvature corresponding to a curvature of the curved surface of the window prior to arranging the dot spacers between the ITO films.

12. The method as claimed in claim 10, further comprising a step of attaching the ITO films to each other where the plurality of dot spacers are arranged between the ITO films and then processing the touch screen element to have a curvature corresponding to the curvature of the curved surface of the window.

13. The method as claimed in claim 9, wherein, the touch screen element comprises a resistive touch screen element.