Loading patent…
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKazufumi Ogawa, Shinzaburo Ishikawa, Takashi Okada, Yoshinao Taketomi
Estimating the term…
A TFT(L) 26 with n-channel, which is connected to a transparent pixel electrode 24, and a TFT(D) 27 with p-annel, which is connected to a cathode side of a photodiode 25, are connected to a common source line 22 and a common gate line 23 and are composed so that each of them can be controlled in an ON state independently by impressing a positive voltage VL or a negative voltage VD on the gate line 23. A backlight 18 which is provided on a backside of an active matrix panel 13 comprises monochromatic light sources 18a-18c for emitting each monochromatic light of red, blue or green, and a picture of each color is displayed in a time division. While reading a picture, the picture of the components of red, blue and green are read at each simplex pixel by using each of the monochromatic light sources 18a-18c sequentially. A picture at a pixel P1 are read by storing a predetermined electric charge only at the photodiode 25 of the pixel P1 and exposing the photodiode 25 as well as making a liquid crystal layer 14 corresponding to every two pixels P1vertically and horizontally a transmission state, and an original picture is read at all pixels by repeating similar operation at each of pixels which are adjacent to the pixel P1.
A liquid crystal display device with a function of reading a picture comprising:
A method of reading a picture by using a liquid crystal display device with a function of reading a picture comprising:
A method of reading a picture by using a liquid crystal display device with a function of reading a picture comprising:
A method of manufacturing a liquid crystal display device with a function of reading a picture comprising:
A liquid crystal display device with a function of reading a picture comprising:
A liquid crystal display device with a function of reading a picture comprising:
A liquid crystal display device with a function of reading a picture comprising:
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of pixel electrodes, an opposite electrode opposed to the plurality of pixel electrodes, a liquid crystal provided between the plurality of pixel electrodes and the opposite electrode, a plurality of photo detectors for detecting a quantity of a reflected light from an original picture, each of said photo detectors provided corresponding to each of the pixel electrodes and a plurality of back light sources, each emitting a monochromatic light of one of the colors selected from red, green, and blue, said method comprising the steps of:
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of pixel electrodes, an opposite electrode opposed to the plurality of pixel electrodes, a liquid crystal provided between the plurality of pixel electrodes and the opposite electrode, a plurality of photo detectors for detecting a quantity of a reflected light from an original picture, each of said photo detectors provided corresponding to each of the pixel electrodes, a color filter having a display field transmitting a light of a predetermined color and an illumination field transmitting a light of any color, said display field and said illumination field being provided corresponding to each pixel, and a plurality of back light sources, each emitting a monochromatic light of one of the colors selected from red, green, and blue, and emitting a light of white color when said back light sources are lit simultaneously, said method comprising the steps of:
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of first pixel electrodes, an opposite electrode opposed to the plurality of first pixel electrodes, a liquid crystal provided between the plurality of first pixel electrodes and the opposite electrode, a plurality of photo detectors for detecting a quantity of a reflected light from an original picture, each of said photo detectors provided corresponding to each of said first pixel electrodes, a plurality of second pixel electrodes for illumination provided corresponding to each of said first pixel electrodes, a second opposite electrode for illumination opposed to said second pixel electrodes for illumination, a color filter having display field transmitting a light of a predetermine color and an illumination field transmitting a light of any color, said display field being provided corresponding to each of said plurality of pixel electrodes and said illumination field being provided corresponding to each of said second pixel electrodes for illumination, and a plurality of back light sources, each emitting a monochromatic light of one of the colors selected from red, green, and blue, and emitting a light of white color when said back light sources are lit simultaneously, said method comprising the steps of:
A liquid crystal display device with function of reading a picture comprising:
A liquid crystal display device with a function of reading a picture comprising:
A liquid crystal display device with a function of reading a picture comprising:
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of source lines for transmitting a picture signal, a plurality of gate lines for transmitting a scanning signal, said gate lines provided in a crossing direction with said source lines, a plurality of pixel electrodes provided corresponding to each intersection of the source lines and the gate lines, a plurality of first transistors, each connected to one of the source lines and one of the gate lines and each of the pixel electrodes, an opposite electrode opposed to the pixel electrodes, a liquid crystal provided between the plurality of pixel electrodes and the opposite electrode, a plurality of photo detectors for detecting a quantity of a reflected light from an original picture, each of said photo detectors provided corresponding to each of the pixel electrodes, a plurality of second transistors, each connected to one of said source lines and one of said gate lines and one end of each of the photo detectors, an other end line connected to the other end of each of the photo detectors;
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of pixel electrodes, an opposite electrode opposed to the plurality of pixel electrodes, a liquid crystal provided between the plurality of pixel electrodes and the opposite electrode, a plurality of photo detectors for detecting a quantity of a reflected light from an original picture, each of said photo detectors provided corresponding to each of the pixel electrodes, and a plurality of back light sources, each emitting a monochromatic light of one of the colors selected from red, green, and blue, said method comprising the steps of:
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of pixel electrodes, an opposite electrode opposed to the plurality of pixel electrodes, a liquid crystal provided between the plurality of pixel electrodes and the opposite electrode, a plurality of photo detectors for detecting a quantity of a reflected light from an original picture, each of said photo detectors provided corresponding to each of the pixel electrodes, a color filter having a display field transmitting a light of a predetermined color and an illumination field transmitting a light of any color, said display field an d said illumnation field being provided corresponding to each pixel, and a plurality of back light sources, each emitting a monochromatic light of one of the colors selected from red, green, and blue, and emitting a light of white color when said back light sources are lit simultaneously, said method comprising the steps of:
A liquid crystal display device with a function of reading a picture comprising:
A liquid crystal display device with a function of reading a picture comprising:
A liquid crystal display device with a function of reading a picture comprising:
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of source lines for transmitting a picture signal, a plurality of gate lines for transmitting a scanning signal, said gate lines provided in a crossing direction with said source lines, a plurality of pixel electrodes provided corresponding to each intersection of the source lines and the gate lines, a plurality of first transistors, each connected to one of the source lines and one of the gate lines and each of the pixel electrodes, an opposite electrode opposed to the pixel electrodes, a liquid crystal provided between the plurality of pixel electrodes and the opposite electrode, a plurality of photo detectors, each provided corresponding to each of the pixel electrodes, said photo detectors being ones in which an electric charge retained therein beforehand is discharged by receiving a reflected light from an original picture and thereby a quantity of the reflected light is detected, a plurality of second transistors, each connected to one of said source lines and one of said gate lines and one end of each of the photo detectors, an other end line connected to the other end of each of the photo detectors, and a back light source emitting a light for displaying a picture and a light for illuminating the original picture, said method comprising:
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of pixel electrodes, an opposite electrode opposed to the plurality of pixel electrodes, a liquid crystal provided between the plurality of pixel electrodes and the opposite electrode, a plurality of photo detectors, each provided corresponding to each of the pixel electrodes, said photo detectors in which an electric charge retained therein beforehand is discharged by receiving a reflected light from an original picture and thereby a quantity of the reflected light is detected, and a plurality of back light sources, each emitting a monochromatic light of one of the colors selected from red, green, and blue, said method comprising the steps of:
A method of displaying and reading a picture by using a liquid crystal display device with a function of reading a picture, said liquid crystal display device comprising a plurality of pixel electrodes, an opposite electrode opposed to the plurality of pixel electrodes, a liquid crystal provided between the plurality of pixel electrodes and the opposite electrode, a plurality of photo detectors, each provided corresponding to each of the pixel electrodes, said photo detectors being ones in which an electric charge retained therein beforehand is discharged by receiving a reflected light from an original picture and thereby a quantity of the reflected light is detected, a color filter having a display field transmitting a light of a predetermined color and an illumination field transmitting a light of any color, said display field and said illumination field being provided corresponding to each pixel, and a plurality of back light sources, each emitting a monochromatic light of one of the colors selected from red, green, and blue, and emitting a light of white color when said back light sources are lit simultaneously, said method comprising the steps of:
Dependencies are inferred from the claim text.