DISPLAY DEVICE
First Claim
Patent Images
1. A display device, comprising:
- a display surface on which information is displayed;
a plurality of pixel areas including optical elements, respectively, each of said optical elements being adapted to generate a light having an intensity corresponding to data inputted and to output the light to said display surface;
a plurality of sensor areas each of which includes a pair of light receiving elements, each of said light receiving elements being adapted to receive an incident light and to subject the incident light to photoelectric conversion;
an optical filter portion disposed between a first light receiving element and said display surface within the corresponding one of said plurality of sensors, said optical filter portion being adapted to absorb and shield the incident light in a visible light band, and to transmit the incident light in a nonvisible light band;
a light shielding portion, having a light absorbing property, disposed between a second light receiving element disposed close to said first light receiving element, and said display surface within the corresponding one of said plurality of sensor areas, said light shielding portion being adapted to absorb and shield the incident light; and
an arithmetically operating portion for obtaining a difference between an output signal from said first light receiving element, and an output signal from said second light receiving element.
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Accused Products
Abstract
A display device. The display device including a display surface, a plurality of pixel areas, a plurality of sensor areas, an optical filter portion, a light shielding portion, and an arithmetically operating portion.
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Citations
7 Claims
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1. A display device, comprising:
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a display surface on which information is displayed; a plurality of pixel areas including optical elements, respectively, each of said optical elements being adapted to generate a light having an intensity corresponding to data inputted and to output the light to said display surface; a plurality of sensor areas each of which includes a pair of light receiving elements, each of said light receiving elements being adapted to receive an incident light and to subject the incident light to photoelectric conversion; an optical filter portion disposed between a first light receiving element and said display surface within the corresponding one of said plurality of sensors, said optical filter portion being adapted to absorb and shield the incident light in a visible light band, and to transmit the incident light in a nonvisible light band; a light shielding portion, having a light absorbing property, disposed between a second light receiving element disposed close to said first light receiving element, and said display surface within the corresponding one of said plurality of sensor areas, said light shielding portion being adapted to absorb and shield the incident light; and an arithmetically operating portion for obtaining a difference between an output signal from said first light receiving element, and an output signal from said second light receiving element. - View Dependent Claims (2, 3, 4, 5)
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6. A display device, comprising:
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a display surface on which information is displayed; a plurality of pixel areas including optical elements, respectively, each of said optical elements being adapted to generate a light having an intensity corresponding to data inputted and to output the light to said display surface; a plurality of sensor areas each of which includes a pair of light receiving elements, each of said light receiving elements being adapted to receive an incident light and to subject the incident light to photoelectric conversion; an optical filter portion disposed between a first light receiving element and said display surface within the corresponding one of said plurality of sensors, said optical filter portion being adapted to absorb and shield the incident light in a visible light band, and to transmit the incident light in a nonvisible light band; a wavelength-selective mirror portion disposed between a second light receiving element disposed close to said first light receiving element, and said display surface within the corresponding one of said plurality of sensor areas, said wavelength-selective mirror portion being adapted to reflect a nonvisible light, in a specific wavelength band, made incident thereto from the display surface side, to transmit a light in a wavelength band other than the specific wavelength band, and to transmit a light made incident thereto from a side opposite to the display surface side; and an arithmetically operating portion for obtaining a difference between an output signal from said first light receiving element, and an output signal from said second light receiving element. - View Dependent Claims (7)
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Specification