Display Device and Electronic Device

• US 20090128529A1
• Filed: 03/29/2006
• Published: 05/21/2009
• Est. Priority Date: 03/29/2005
• 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: Uehara, Kazuhiro, Izumi, Yoshihiro
• Application Number:
  US11/887,397
• Publication Number:
  US 20090128529A1
• Time in Patent Office: Days
• US Class Current: 345/207
• CPC Class Codes: G02F 1/13318 Circuits comprising a photodetector
• CPC Class Codes: G02F 1/167 by electrophoresis
• CPC Class Codes: H01L 31/02162 for filtering or shielding light, e.g. multicolour filters for photodetectors
• CPC Class Codes: H10K 59/13 comprising photosensors that control luminance
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]

Abstract

A display apparatus including an optical sensor in its peripheral region is intended to response to visible rays efficiently by preventing a malfunction due to the reaction of the optical sensor to near ultraviolet rays. For this purpose, a display apparatus that includes an active matrix substrate (2) having a pixel array region (8) in which a plurality of pixels are arranged on a base substrate (14) is configured as follows: an optical sensor (11) is provided in a peripheral region (9) located around the pixel array region (8); a color filter (22) for display is provided on the opposite side of TFTs (6) from the base substrate (14); and a color filter (23) for an optical sensor is provided on the opposite side of the optical sensor (11) from the base substrate (14).

Claims

1. A display apparatus comprising:

an active matrix substrate having a pixel array region in which a plurality of pixels are arranged on a base substrate,

wherein a plurality of active elements for driving a display medium are arranged in the pixel array region,

an optical sensor is provided in a peripheral region located around the pixel array region of the active matrix substrate,

a color filter for display is provided on an opposite side of the active elements from the base substrate, and

a color filter for an optical sensor is provided On an opposite side of the optical sensor from the base substrate.

2. The display apparatus according to claim 1, wherein a semiconductor film of the active elements and a semiconductor film of the optical sensor are formed in a same layer.

3. The display apparatus according to claim 1, wherein the color filter for display and the color filter for an optical sensor are formed of a same material.

4. The display apparatus according to claim 1, wherein the color filter for display and the color filter for an optical sensor are formed by a same process.

5. The display apparatus according to claim 1, wherein the active elements and the optical sensor are formed monolithically on the active matrix substrate.

6. The display apparatus according to claim 1, wherein the color filter for display and the color filter for an optical sensor are formed on the active matrix substrate.

7. The display apparatus according to claim 1, wherein a counter substrate is provided opposite to the active matrix substrate with the display medium interposed therebetween, and

the color filter for display and the color filter for an optical sensor are formed on the counter substrate.

8. The display apparatus according to claim 1, wherein the color filter for an optical sensor is either blue or green.

9. The display apparatus according to claim 1, wherein a control circuit is provided for controlling display brightness based on brightness information of ambient light detected by the optical sensor.

10. The display apparatus according to claim 1, wherein a plurality of optical sensors are provided in the peripheral region, and

color filters for an optical sensor having a plurality of colors are provided for each of the optical sensors.

11. The display apparatus according to claim 10, wherein the color filters for an optical sensor having a plurality of colors comprise color filters with at least three colors of blue, green, and red.

12. The display apparatus according to claim 10, wherein a control circuit is provided for controlling a display color balance based on color information of ambient light detected by the optical sensors.

13. An electronic device comprising the display apparatus according to claim 1.