DISPLAY DEVICE

Abstract

A display device includes a plurality of scan lines and each of a plurality of signal lines which are provided intersecting to each other; a plurality of display sections each disposed at an intersection of each of the plurality of scan lines and each of the plurality of signal lines; and a plurality of photo receivers each provided corresponding to each of the plural display sections so that the number of the disposed photo receivers would monotonically increase as the sizes of the photo receivers increase.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a plan view showing a diagrammatic configuration of a display device of a first embodiment of the present invention;

FIG. 2 is a circuit diagram showing a diagrammatic configuration of a pixel unit provided to the display device shown in FIG. 1;

FIG. 3 is a plan view showing a diagrammatic configuration of the pixel unit shown in FIG. 2;

FIG. 4 is an explanatory diagram explaining a relationship between the size and the gradation difference of photo receivers;

FIG. 5 is an explanatory view an explaining the gradation difference;

FIG. 6 is an explanatory diagram explaining a relationship between the size and the number of disposed photo receivers;

FIG. 7 is an explanatory diagram explaining a relationship between the illumination intensity and the gradation difference;

FIG. 8 is a configuration diagram showing a diagrammatic configuration of a display device of a second embodiment of the present invention;

FIG. 9 is a diagram showing a circuit configuration of a sensor integrated pixel;

FIG. 10 is a block diagram showing a circuit configuration of a control circuit;

FIG. 11 is a diagram showing a configuration of a selection circuit of a signal line drive circuit;

FIG. 12 is a plan view showing a configuration in which a plurality of light sensors of nine arithmetical level and a plurality of light sensors having widths equal to the maximum widths of the arithmetically different widths of the plurality of light sensors of nine arithmetical level are disposed in one pixel area, and in which a plurality of pixel areas are disposed in a display area unit that is a display area;

FIG. 13 is a front view of a light sensor;

FIG. 14 is a front view of a light sensor having the width larger than that of the light sensor shown in FIG. 13; and

FIG. 15 is a timing chart of processing operations of a sensor integrated pixel.

Claims

1. A display device comprising: a plurality of scan lines and each of a plurality of signal lines which are provided intersecting to each other;a plurality of display sections each disposed at an intersection of each of the plurality of scan lines and each of the plurality of signal lines; anda plurality of photo receivers which are provided corresponding to the plurality of display sections so that the number of the disposed photo receivers would monotonically increase as the size of the photo receiver increase.

2. The display device according to claim 1, wherein the number of the plurality of disposed photo receivers monotonically increases on the basis of a linear function.

3. The display device according to claim 1, wherein the number of the plurality of disposed photo receivers monotonically increases on the basis of an exponential function.

4. A display device comprising: a display area in which a plurality of pixel areas including a plurality of pixels are disposed;a plurality of light sensors which are disposed in the pixel area, and which have the respectively different widths that increase in an arithmetical or geometrical series; anda plurality of light sensors which have widths greater than or equal to the maximum width of the arithmetically or geometrically different widths of the light sensors provided in the pixel area.

5. The display device according to claim 4, wherein the number of light sensors having widths greater than or equal to the maximum width of the arithmetically or geometrically different widths is not less than ⅓ of the number of light sensors having the arithmetically or geometrically different widths.

6. The display device according to claim 4, wherein the plurality of light sensors respectively having the arithmetically or geometrically different widths, and the plurality of light sensors each having a width greater than or equal to the maximum width of the arithmetically or geometrically different widths are disposed at random in the pixel area.

7. The display device according to claim 5, wherein the plurality of light sensors respectively having the arithmetically or geometrically different widths, and the plurality of light sensors each having a width greater than or equal to the maximum width of the arithmetically or geometrically different widths are disposed at random in the pixel area.

8. The display device according to claim 4, further comprising a control circuit which adjusts an exposure time and/or precharge voltages of the light sensors according to the illumination intensity of outside light captured by the light sensors.

9. The display device according to claim 5, further comprising a control circuit which adjusts an exposure time and/or precharge voltages of the light sensors according to the illumination intensity of outside light captured by the light sensors.

10. The display device according to claim 6, further comprising a control circuit which adjusts an exposure time and/or precharge voltages of the light sensors according to the illumination intensity of outside light captured by the light sensors.

11. The display device according to claim 4, wherein transmittances of the plurality of pixels are equal to one another.

12. The display device according to claim 5, wherein transmittances of the plurality of pixels are equal to one another.

13. The display device according to claim 6, wherein transmittances of the plurality of pixels are equal to one another.

14. The display device according to claim 7, wherein transmittances of the plurality of pixels are equal to one another.

15. The display device according to claim 4, wherein: the pixel includes sub-pixels of red, green and blue; andthe plurality of light sensors respectively having the arithmetically or geometrically different widths and the plurality of light sensors each having a width greater than or equal to the maximum width of the arithmetically or geometrically different widths are provided to at least one of the sub-pixels.

16. The display device according to claim 5, wherein: the pixel includes sub-pixels of red, green and blue; andthe plurality of light sensors respectively having the arithmetically or geometrically different widths and the plurality of light sensors each having a width greater than or equal to the maximum width of the arithmetically or geometrically different widths are provided to at least one of the sub-pixels.

17. The display device according to claim 6, wherein: the pixel includes sub-pixels of red, green and blue; andthe plurality of light sensors respectively having the arithmetically or geometrically different widths and the plurality of light sensors each having a width greater than or equal to the maximum width of the arithmetically or geometrically different widths are provided to at least one of the sub-pixels.

18. The display device according to claim 15, wherein the transmittances of the respective sub-pixels of red, green and blue are equal to one another.

19. The display device according to claim 8, wherein the control circuit adjusts the exposure time and/or the precharge voltages of the light sensors by replacing at least a part of sensor signal values from the plurality of light sensors respectively having the arithmetically or geometrically different widths, with sensor signal values from the plurality of light sensors each having a width greater than or equal to the maximum width of the arithmetically or geometrically different widths.