DISPLAY DEVICE WITH TOUCH SENSOR FUNCTIONALITY, AND LIGHT-COLLECTING/BLOCKING FILM

• US 20120133618A1
• Filed: 07/07/2010
• Published: 05/31/2012
• Est. Priority Date: 07/10/2009
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Usukura, Naru, Shigeta, Hiroaki, Yuki, Ryuzo
• Application Number:
  US13/383,130
• Publication Number:
  US 20120133618A1
• Time in Patent Office: Days
• US Class Current: 345/175
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133526 Lenses, e.g. microlenses or Fresnel lenses
• CPC Class Codes: G06F 3/042 by opto-electronic means

Abstract

A display device with touch sensor functionality with an enlarged distinction margin between the touch state and the non-touch state is provided. The display device with touch sensor functionality includes a light-collecting/blocking film (116) on the surface of the display device. The light-collecting/blocking film (116) includes an opening (212) that collects and passes light exiting the display device to the outside, and a light-blocking portion (213) that blocks a portion of light entering the display device.

Claims

1. A display device with touch sensor functionality, comprising:

a light-collecting/blocking film provided on a surface of the display device, the light-collecting/blocking film including;

an opening that collects and passes light exiting the display device to an outside; and

a light-blocking portion that blocks a portion of the light entering the display device.

2. The display device with touch sensor functionality according to claim 1, further including a lens corresponding to the opening.

3. The display device with touch sensor functionality according to claim 1, wherein:

the opening and the light-blocking portion are arranged alternately in a single layer of the light-collecting/blocking film.

4. The display device with touch sensor functionality according to claim 3, wherein:

the opening is a translucent film; and

the light-blocking portion is a light-blocking film.

5. The display device with touch sensor functionality according to claim 3, wherein:

the light-collecting/blocking film includes;

a translucent film and;

light-blocking films arranged on one surface of the translucent film with a predetermined interval therebetween.

6. The display device with touch sensor functionality according to claim 3, wherein:

the light-collecting/blocking film further includes a base material layer superposed on the layer including the opening and the light-blocking portion.

7. The display device with touch sensor functionality according to claim 1, wherein the light-blocking portion includes a reflecting surface reflecting light exiting the display device toward the opening.

8. The display device with touch sensor functionality according to claim 7, wherein the light-blocking portion is wedge-shaped light-blocking members arranged with a predetermined interval in the translucent film.

9. The display device with touch sensor functionality according to claim 8, wherein the light-collecting/blocking film further includes a base material layer superposed on the translucent film.

10. The display device with touch sensor functionality according to claim 1, wherein the opening is circular when the light-collecting/blocking film is viewed from a viewer'"'"'s side, and all the other portion than the opening is the light-blocking portion.

11. The display device with touch sensor functionality according to claim 1, wherein the opening and the light-blocking portion are arranged in a striped manner when the light-collecting/blocking film is viewed from a viewer'"'"'s side.

12. The display device with touch sensor functionality according to claim 1, wherein the opening is rectangular when the light-collecting/blocking film is viewed from a viewer'"'"'s side, and all the other portion than the opening is the light-blocking portion.

13. The display device with touch sensor functionality according to claim 1, further comprising a narrow-directivity backlight.

14. A light-collecting/blocking film to be provided on a surface of a display device with touch sensor functionality, comprising:

an opening that collects and passes light exiting the display device to an outside; and

a light-blocking portion that blocks a portion of the light entering the display device.