DISPLAY DEVICE

• US 20110181568A1
• Filed: 06/09/2009
• Published: 07/28/2011
• Est. Priority Date: 09/30/2008
• 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: Maeda, Kazuhiro, Shiraki, Ichiro, Sugiyama, Hiroaki
• Application Number:
  US13/120,428
• Publication Number:
  US 20110181568A1
• Time in Patent Office: Days
• US Class Current: 345/207
• CPC Class Codes: G02F 1/13312 Circuits comprising photodetectors for purposes other than feedback
• CPC Class Codes: G02F 1/13318 Circuits comprising a photodetector
• CPC Class Codes: G02F 1/1354 having a particular photoconducting structure or material
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence

Abstract

Outside provision of first row lines (CS(1) and CS(2)) is identical between a first picture element row (R1) and a second picture element row (R2) of each picture element row pair (20) in terms of whether each first row line is provided, with respect to picture element electrodes (ER(1), EG(1), EB(1), ER(2), EG(2), and EB(2)), so as to be closer to a photosensor circuit (SC) or farther from the photosensor circuit (SC).

Claims

1. A display device which is an active matrix display device, comprising:

an array of a plurality of picture elements each including a picture element electrode to which a data signal is written;

at least one photosensor circuit which is provided in such a manner as to be inserted in the array and which outputs a signal in accordance with an intensity of irradiation light; and

light intensity detecting means for detecting the signal of the at least one photosensor circuit so as to detect the intensity of the irradiation light,

the at least one photosensor circuit being respectively provided in a region between a first picture element row and a second picture element row adjacent to each other composing a picture element pair,

the first picture element row and the second picture element row each including at least one first row line, separate from a line for the at least one photosensor circuit, of which a footprint covers, as seen in a first direction perpendicular to a display surface, at least a portion of an outside area being outwardly adjacent to either one of edges, opposite in a column direction, of a footprint of the picture element electrode,

the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair both being outwardly adjacent to either closer edges of the opposite edges to the at least one photosensor circuit or farther edges of the opposite edges from the at least one photosensor circuit.

2. The display device according to claim 1,

wherein:

the first picture element row and the second picture element row each further include at least one second row line, separate from the line for the at least one photosensor circuit, of which a footprint covers any portion of an inside area rather than that of the outside area as seen in the first direction;

the inside area is present within a span in the column direction, the span being defined by two picture element electrode edges including a first picture element electrode edge and a second picture element electrode edge, the first picture element electrode edge being closer to the at least one photosensor circuit than the second picture element electrode edge is; and

the inside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both inwardly adjacent either more closely to the first picture element electrode edge than to the second picture element electrode edge or more closely to the second picture element electrode edge than to the first picture element electrode edge.

3. The display device according to claim 1,

wherein:

the at least one first row line is a storage capacitor line; and

both (i) the at least one first row line of the first picture element row of the respective picture element row pair and (ii) the at least one first row line of the second picture element row of the respective picture element row pair are provided such that the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both outwardly adjacent to farther edges of the opposite edges from the at least one photosensor circuit.

4. The display device according to claim 2,

wherein:

the at least one first row line is a storage capacitor line;

the at least one second row line is a scanning signal line; and

both (i) the at least one first row line of the first picture element row of the respective picture element row pair and (ii) the at least one first row line of the second picture element row of the respective picture element row pair are provided such that the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both outwardly adjacent to farther edges of the opposite edges from the at least one photosensor circuit.

5. The display device according to claim 3,

wherein:

a signal for driving the at least one first row line of the first picture element row is not in anti-phase with a signal for driving the at least one first row line of the second picture element row.

6. The display device according to claim 1,

wherein:

the at least one first row line is a storage capacitor line; and

both (i) the at least one first row line of the first picture element row of the respective picture element row pair and (ii) the at least one first row line of the second picture element row of the respective picture element row pair are provided such that the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both outwardly adjacent to closer edges of the opposite edges to the at least one photosensor circuit.

7. The display device according to claim 2,

wherein:

the at least one first row line is a storage capacitor line;

the at least one second row line is a scanning signal line; and

both (i) the at least one first row line of the first picture element row of the respective picture element row pair and (ii) the at least one first row line of the second picture element row of the respective picture element row pair are provided such that the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both outwardly adjacent to closer edges of the opposite edges to the at least one photosensor circuit.

8. The display device according to claim 6,

wherein:

the at least one first row line is not dynamically driven.

9. The display device according to claim 1,

wherein:

the at least one first row line is a scanning signal line; and

both (i) the at least one first row line of the first picture element row of the respective picture element row pair and (ii) the at least one first row line of the second picture element row of the respective picture element row pair are provided such that the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both outwardly adjacent to farther edges of the opposite edges from the at least one photosensor circuit.

10. The display device according to claim 2,

wherein:

the at least one first row line is a scanning signal line;

the at least one second row line is a storage capacitor line; and

both (i) the at least one first row line of the first picture element row of the respective picture element row pair and (ii) the at least one first row line of the second picture element row of the respective picture element row pair are provided such that the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both outwardly adjacent to farther edges of the opposite edges from the at least one photosensor circuit.

11. The display device according to claim 1,

wherein:

the at least one first row line is a scanning signal line; and

both (i) the at least one first row line of the first picture element row of the respective picture element row pair and (ii) the at least one first row line of the second picture element row of the respective picture element row pair are provided such that the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both outwardly adjacent to closer edges of the opposite edges to the at least one photosensor circuit.

12. The display device according to claim 2,

wherein:

the at least one first row line is a scanning signal line;

the at least one second row line is a storage capacitor line; and

both (i) the at least one first row line of the first picture element row of the respective picture element row pair and (ii) the at least one first row line of the second picture element row of the respective picture element row pair are provided such that the outside areas with regard to the first picture element row and the second picture element row of the respective picture element row pair are, as seen in the first direction, both outwardly adjacent to closer edges of the opposite edges to the at least one photosensor circuit.

13. The display device according to claim 1,

wherein:

the at least one first row line of each of the first picture element row and the second picture element row includes a plurality of lines for respective signals; and

the plurality of lines included in the at least one first row line are arranged in the column direction in an order which is, as seen in the first direction, reversed between the first picture element row and the second picture element row of the respective picture element row pair.

14. The display device according to claim 2,

wherein:

the at least one second row line of each of the first picture element row and the second picture element row includes a plurality of lines for respective signals; and

the plurality of lines included in the at least one second row line are arranged in the column direction in an order which is, as seen in the first direction, reversed between the first picture element row and the second picture element row of the respective picture element row pair.

15. The display device according to claim 1,

wherein:

the display device is capable of being driven so that the data signal has a polarity which is opposite between the first picture element row and the second picture element row of the respective picture element row pair.

16. The display device according to claim 1,

wherein:

each picture element row in the array corresponds to the respective picture element row pair.

17. The display device according to claim 1,

wherein:

a plurality of the respective picture element row pair are formed so as to be individually separated by a space equivalent to k−

2 picture element rows in a case where an upper picture element row of two picture element rows of an uppermost one of the plurality of the respective picture element row pair corresponds to a k-th row, where k is a natural number not smaller than 2.