Input display apparatus and input display panel

• US 20090027358A1
• Filed: 02/07/2008
• Published: 01/29/2009
• Est. Priority Date: 07/26/2007
• Status: Abandoned Application

• Current Assignee: Fujitsu Toshiba Mobile Communications Limited (Fujitsu Limited)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: hosono, Masafumi
• Application Number:
  US12/069,110
• Publication Number:
  US 20090027358A1
• Time in Patent Office: Days
• US Class Current: 345/175
• CPC Class Codes: G06F 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen

Abstract

Besides a white LED employed as a general backlight, an Ir-LED is provided to apply an infrared light beam from a display face of an input display panel to the outside, reflected light of the infrared light beam is detected by a sensor, and a user'"'"'s request is thereby accepted.

Claims

1. An input display apparatus, comprising:

an input display unit in which a plurality of light emitting units emitting light beams of a plurality of colors and a plurality of sensors sensing an infrared light beam are arranged;

a display control unit which controls the colors of the light beams emitted by the light emitting units to urge the input display unit to display an image; and

an input detecting unit which detects an input in accordance with a result of detection of the sensors.

2. The apparatus according to claim 1, wherein the input display unit has the plurality of light emitting units and the plurality of sensors regularly arranged therein.

3. The apparatus according to claim 2, wherein each of the light emitting units comprises:

a light outputting unit which emits visible light beams of a plurality of wavelengths;

a filter unit which allows the visible light beams of a plurality of wavelengths different from each other to pass therethrough; and

a shutter unit which controls the light passage by a liquid-crystal shutter.

4. The apparatus according to claim 1, wherein the input detecting unit detects the input from a difference between detection levels of the plurality of sensors.

5. An input display apparatus, comprising:

an infrared light outputting unit which outputs an infrared light beam;

an input display unit in which a plurality of light emitting units emitting light beams of a plurality of colors and a plurality of sensors sensing reflected light of the infrared light beam output from the infrared light outputting unit are arranged;

a display control unit which controls the colors of the light beams emitted by the light emitting units to urge the input display unit to display an image; and

an input detecting unit which detects an input in accordance with a result of detection of the sensors.

6. The apparatus according to claim 5, wherein the input display unit has the plurality of light emitting units and sensors, and a plurality of infrared light outputting units identical with the infrared light outputting unit regularly arranged therein.

7. The apparatus according to claim 6, wherein each of the light emitting units comprises:

a light outputting unit which emits visible light beams of a plurality of wavelengths;

a filter unit which allows the visible light beams of a plurality of wavelengths different from each other to pass therethrough; and

a shutter unit which controls the light passage by a liquid-crystal shutter.

8. The apparatus according to claim 5, wherein the infrared light outputting unit is arranged on an outer periphery of a display face on which the input display unit displays the image.

9. The apparatus according to claim 5, wherein the input detecting unit detects the input from a difference between detection levels of the plurality of sensors.

10. An input display panel, comprising:

a light emitting unit which emits light beams of a plurality of colors; and

a sensor arranged side by side with the light emitting unit on a same plane to sense infrared light.

11. The panel according to claim 10, wherein a plurality of light emitting units identical with the light emitting unit and a plurality of sensors identical with the sensor are regularly arranged on the same plane.

12. The panel according to claim 10, wherein the light emitting unit comprises:

a light outputting unit which emits visible light beams of a plurality of wavelengths;

a filter unit which allows the visible light beams of a plurality of wavelengths different from each other to pass therethrough; and

a shutter unit which controls the light passage by a liquid-crystal shutter.

13. An input display panel, comprising:

an infrared light outputting unit which outputs an infrared light beam;

a light emitting unit which emits light beams of a plurality of colors; and

a sensor arranged side by side with the light emitting unit on a same plane to sense reflected light of the infrared light beam output from the infrared light outputting unit.

14. The panel according to claim 13, wherein a plurality of light emitting units identical with the light emitting unit and a plurality of sensors identical with the sensor are regularly arranged on the same plane.

15. The panel according to claim 13, wherein the light emitting unit comprises:

a light outputting unit which emits visible light beams of a plurality of wavelengths;

a filter unit which allows the visible light beams of a plurality of wavelengths different from each other to pass therethrough; and

a shutter unit which controls the light passage by a liquid-crystal shutter.