Display device, light receiving method, and information processing device

• US 8,004,484 B2
• Filed: 09/18/2007
• Issued: 08/23/2011
• Est. Priority Date: 10/10/2006
• Status: Expired due to Fees

• Current Assignee: Japan Display West Incorporated (Japan Display Incorporated)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Harada, Tsutomu, Tamayama, Takeru, Matsui, Masafumi, Tateuchi, Mitsuru, Yamanaka, Go
• Primary Examiner(s): Hjerpe; Richard
• Assistant Examiner(s): PARKER, JEFFREY ALAN
• Application Number:
  US11/857,280
• Publication Number:
  US 20080084377A1
• Time in Patent Office: 1,435 Days
• Field of Search: 345/173, 345/175, 345/87, 345/90, 345/92, 345/102
• US Class Current: 345/92
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence

Abstract

A display device, light receiving method, and information processing device are provided. The display device including a plurality of sub-pixels forming a pixel as a unit of display resolution of an image, the plurality of sub-pixels being arranged in a delta arrangement, a display circuit for displaying the image, a light receiving sensor for detecting light, the display circuit and the light receiving sensor being disposed in each of the sub-pixels, wherein display signal lines for supplying a display signal to the sub-pixels are wired to all of the sub-pixels in a same direction, two or more the light receiving sensors arranged in a direction perpendicular to the wiring direction of the display signal lines are connected to each other, and a received light signal obtained from the two or more the light receiving sensors connected to each other is output from a light receiving circuit.

Claims

1. A display device comprising:

a plurality of sub-pixels forming a pixel as a unit of display resolution of an image, said plurality of sub-pixels being arranged in a delta arrangement;

a display circuit for displaying said image;

a light receiving sensor for detecting light, said display circuit and said light receiving sensor being disposed in each of said sub-pixels,

wherein display signal lines for supplying a display signal to said sub-pixels are wired to all of said sub-pixels in a same direction,

two or more said light receiving sensors arranged in a direction perpendicular to the wiring direction of said display signal lines are connected to each other, and a received light signal obtained from the two or more said light receiving sensors connected to each other is output from a light receiving circuit,

wherein the light receiving circuit includes at least two types of subordinate light receiving circuits disposed in different sub-pixels of a same pixel, wherein only one type of subordinate light receiving circuit includes an amplifier.

2. The display device as claimed in claim 1,

wherein a received light signal line to which said received light signal is output is wired in a same direction as the wiring direction of said display signal lines.

3. The display device as claimed in claim 1,

wherein said display circuit controls transmittance for light from a backlight by a liquid crystal layer.

4. The display device as claimed in claim 1,

wherein said light receiving sensor is one of a TFT as Thin Film Transistor and a diode.

5. The display device as claimed in claim 1,

wherein said display circuit controls a self-luminous element.

6. The display device as claimed in claim 1,

wherein said sub-pixels include sub-pixels of R as Red, G as Green, and B as Blue.

20. The display device as claimed in claim 1, further comprising:

a first type of subordinate light receiving circuit including a first sensor and a first switching element, and lacking an amplifier, and

a second type of subordinate light receiving circuit including a second sensor, a second switching element, and an amplifier,

wherein a subordinate light receiving circuit of the first type is disposed in a first sub-pixel and a subordinate light receiving circuit of the second type is disposed in a second sub-pixel in a same pixel as the first sub-pixel.

21. The display device as claimed in claim 1, wherein only one subordinate light receiving circuit in the pixel includes an amplifier, and a sum total signal output from the two or more said light receiving sensors is input to the amplifier.

7. A light receiving method of a display device, said display device having a plurality of sub-pixels forming a pixel as a unit of display resolution of an image, said plurality of sub-pixels being arranged in a delta arrangement, a display circuit for displaying said image and a light receiving sensor for detecting light, said display circuit and said light receiving sensor being disposed in each of said sub-pixels, display signal lines for supplying a display signal to said sub-pixels, said display signal lines being wired to all of said sub-pixels in a same direction, and a light receiving circuit including at least two types of subordinate light receiving circuits disposed in different sub-pixels of a same pixel, wherein only one type of subordinate light receiving circuit includes an amplifier, said light receiving method comprising:

outputting a received light signal obtained from two or more of said light receiving sensors arranged in a direction perpendicular to the wiring direction of said display signal lines.

8. The light receiving method as claimed in claim 7,

wherein a received light signal line to which said received light signal is output is wired in a same direction as the wiring direction of said display signal lines.

9. The light receiving method as claimed in claim 7,

wherein said display circuit controls transmittance for light from a backlight by a liquid crystal layer.

10. The light receiving method as claimed in claim 7,

wherein said light receiving sensor is one of a TFT as Thin Film Transistor and a diode.

11. The light receiving method as claimed in claim 7,

wherein said display circuit controls a self-luminous element.

12. The light receiving method as claimed in claim 7,

wherein said sub-pixels include sub-pixels of R as Red, G as Green, and B as Blue.

13. An information processing device comprising:

displaying and light receiving means for displaying predetermined information as an image and detecting light by a light receiving sensor;

input information analyzing means for analyzing externally input information, using a received light image generated from a received light signal output by said light receiving sensor; and

controlling means for performing a predetermined controlling process in correspondence with a message supplied from said input information analyzing means;

wherein in said displaying and light receiving means, a plurality of sub-pixels forming a pixel as a unit of display resolution of said image are arranged in a delta arrangement, a display circuit for displaying said image and said light receiving sensor are disposed in each of said sub-pixels, a display signal line for supplying a display signal to said sub-pixels is wired to all of said sub-pixels in a same direction, and a light receiving circuit including at least two types of subordinate light receiving circuits disposed in different sub-pixels of a same pixel, wherein only one type of subordinate light receiving circuit includes an amplifier, and

said displaying and light receiving means outputs a received light signal obtained from two or more said light receiving sensors arranged in a direction perpendicular to the wiring direction of said display signal lines.

14. The information processing device as claimed in claim 13,

wherein a received light signal line to which said received light signal is output is wired in a same direction as the wiring direction of said display signal lines.

15. The information processing device as claimed in claim 13,

wherein said display circuit controls transmittance for light from a backlight by a liquid crystal layer.

16. The information processing device as claimed in claim 13,

wherein said light receiving sensor is one of a TFT as Thin Film Transistor and a diode.

17. The information processing device as claimed in claim 13,

wherein said display circuit controls a self-luminous element.

18. The information processing device as claimed in claim 13,

wherein said sub-pixels include sub-pixels of R as Red, G as Green, and B as Blue.

19. An information processing device comprising:

a displaying and light receiving section configured to display predetermined information as an image and detecting light by a light receiving sensor;

an input information analyzing section configured to analyze externally input information, using a received light image generated from a received light signal output by said light receiving sensor; and

a controlling section configured to perform a predetermined controlling process in correspondence with a message supplied from said input information analyzing section;

wherein in said displaying and light receiving section, a plurality of sub-pixels forming a pixel as a unit of display resolution of said image are arranged in a delta arrangement, a display circuit for displaying said image and said light receiving sensor are disposed in each of said sub-pixels, a display signal line for supplying a display signal to said sub-pixels is wired to all of said sub-pixels in a same direction, and a light receiving circuit including at least two types of subordinate light receiving circuits disposed in different sub-pixels of a same pixel, wherein only one type of subordinate light receiving circuit includes an amplifier, and

said displaying and light receiving section outputs a received light signal obtained from two or more said light receiving sensors arranged in a direction perpendicular to the wiring direction of said display signal lines.