Display device having display and imaging pixels sandwiched between same substrates
AssigneeSharp Kabushiki Kaisha
InventorToshio Nishimura
Life of this patent
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Abstract
In a picture telephone, an apparatus is provided which images the face of an operator in a natural manner for a conversation, with an eye height at which the operator looks at an image expressing a partner of the conversation. A number of photodiodes are disposed each adjacent to each pixel electrode, on surfaces facing each other of a pair of substrates between which a liquid crystal of a transmission type active matrix liquid crystal display apparatus is interposed. Outputs from the respective photodiodes are read out by a so-called inter-line transmission method which utilizes a scanning function of a CCD (charge coupled device).
Claims19
A television communication apparatus comprising:
- (a) a displaying/imaging apparatus disposed to face an operator comprising:
- a pair of spaced apart substrates which define an internal volume therebetween, at least one of the substrates being light transmissive;
- a matrix of pixel electrodes mounted on a volume-oriented side of at least one of the substrates;
- at least one light-receiving element of an imaging device mounted within the internal volume;
- a discrete light receiving electrode having means for adjusting the amount of light received by the light-receiving element;
- a dielectric interposed within the internal volume, the dielectric providing a display function in accordance with activation of the pixel electrodes;
- (b) image driving means for receiving an image signal through a communication line and providing the pixel electrodes with the image signal to perform a display operation;
- (c) a speaker;
- (d) an audio driving circuit for receiving an audio signal through the communication line and driving the speaker;
- (e) a microphone;
- and
- (f) transmitting means for transmitting outputs from the outputting means and the microphone to the communication line.
A combined display and imaging apparatus comprising:
- a pair of spaced apart substrates which define an internal volume therebetween, at least one of the substrates being light transmissive;
- a matrix of display elements mounted on a volume-oriented side of at least one of the substrates;
- at least one light-receiving element of an imaging device mounted within the internal volume;
- a discrete light receiving electrode having means for adjusting the amount of light received by the light-receiving element;
- a dielectric which is interposed within the internal volume, the dielectric providing a display function in accordance with activation of the display elements.
A combined display and imaging apparatus comprising:
- a pair of spaced apart substrates which define an internal volume therebetween, at least one of the substrates being light transmissive;
- a matrix of display elements mounted on at least one of the substrates;
- at least one light-receiving element of an imaging device;
- a discrete light-receiving electrode having means for adjusting the amount of light received by the light-receiving element;
- a liquid crystal interposed within the internal volume;
- wherein the at least one of the substrates has formed thereon:
- a plurality of gate lines formed thereon to extend in a first direction;
- a plurality of source lines formed thereon to extend in a second direction, the second direction being perpendicular to the first direction;
- an aperture being bounded between two adjacent ones of the gate lines and two adjacent ones of the source lines, and
- wherein within the aperture is provided:
- a discrete one of the display elements of the matrix;
- and
- a discrete light-receiving element.
Dependencies are inferred from the claim text.