Abstract: In a display device in which each pixel includes a thin film transistor which is turned on in response to a scanning signal from a gate signal line, and an electrode to which a video signal from a drain signal line is supplied through the thin film transistor, the scanning signal allows a voltage level thereof which turns on the thin film transistor to have a valley portion which decreases the voltage level in a midst portion thereof, and the decreased voltage level of the valley portion is set to a value which is equal to or more than a voltage level which turns off the thin film transistor.

Abstract: A liquid crystal display device having a direct backlight which uses a high-bright light source achieves both of a high efficiency and thin uniformity. In a liquid crystal display device which includes a liquid crystal panel, and a backlight unit which is arranged on a side of the liquid crystal panel opposite to a display screen of the liquid crystal panel, the backlight unit includes a housing, a plurality of light sources arranged in the inside of the housing, and a diffusion plate which is arranged between the plurality of light sources and the liquid crystal panel, the diffusion plate includes a plurality of light blocking regions at positions corresponding to the plurality of respective light sources, and the light blocking region at a center portion of the housing and the light blocking region at an edge portion of the housing exhibits transmissivities different from each other.

Abstract: A liquid crystal display device having a direct backlight which uses a high-bright light source achieves both of a high efficiency and thin uniformity. In a liquid crystal display device which includes a liquid crystal panel, and a backlight unit which is arranged on a side of the liquid crystal panel opposite to a display screen of the liquid crystal panel, the backlight unit includes a housing, a plurality of light sources arranged in the inside of the housing, and a diffusion plate which is arranged between the plurality of light sources and the liquid crystal panel, the diffusion plate includes a plurality of light blocking regions at positions corresponding to the plurality of respective light sources, and the light blocking region at a center portion of the housing and the light blocking region at an edge portion of the housing exhibits transmissivities different from each other.

Abstract: A liquid crystal display device having a direct backlight which uses a high-bright light source achieves both of a high efficiency and thin uniformity. In a liquid crystal display device which includes a liquid crystal panel, and a backlight unit which is arranged on a side of the liquid crystal panel opposite to a display screen of the liquid crystal panel, the backlight unit includes a housing, a plurality of light sources arranged in the inside of the housing, and a diffusion plate which is arranged between the plurality of light sources and the liquid crystal panel, the diffusion plate includes a plurality of light blocking regions at positions corresponding to the plurality of respective light sources, and the light blocking region at a center portion of the housing and the light blocking region at an edge portion of the housing exhibits transmissivities different from each other.

Abstract: In a display device which displays a black image by periodically inserting a black image, after the display of the black image, a first period in which a video signal different from a video signal for the black image is outputted to video signal lines is made different from a succeeding period in length.

Abstract: In a display device which displays a black image by periodically inserting a black image, after the display of the black image, a first period in which a video signal different from a video signal for the black image is outputted to video signal lines is made different from a succeeding period in length.

Abstract: In a display device forming a board for mounting a connector which allows inputting of video data thereon and a board for mounting a display control circuit to be connected to the connector thereon on a surface of a display module opposite to an observation side, the board for mounting the connector thereon and the board for mounting the display control circuit thereon are physically separated from each other and, further, an area of the board for mounting the display control circuit thereon is set smaller than an area of the board for mounting the connector thereon.

Abstract: A liquid crystal display device is provided with a backlight where there is little inconsistency in the temperature in the fluorescent lamps and which can illuminate the liquid crystal panel well even when the structure is thin.

Abstract: A liquid crystal display includes pixels each having an switching element, drain drivers and gate drivers for operating the switching elements and the pixels, and drain lines and gate lines supplying signals from the drain drivers and the gate drivers to the switching elements being formed on one of a pair of substrates sandwiching a liquid crystal layer. Wiring lines are formed on the one of a pair of substrates for transferring display data signals and a clock signal to the gate drivers.

Abstract: In a display device forming a board for mounting a connector which allows inputting of video data thereon and a board for mounting a display control circuit to be connected to the connector thereon on a surface of a display module opposite to an observation side, the board for mounting the connector thereon and the board for mounting the display control circuit thereon are physically separated from each other and, further, an area of the board for mounting the display control circuit thereon is set smaller than an area of the board for mounting the connector thereon.

Abstract: The present invention provides a display device which displays a black image by periodically inserting the black image, wherein after the display of the black image, a first period in which a video signal different from a video signal for the black image is outputted to video signal lines is made different from a succeeding period in length.

Abstract: In a display device forming a board for mounting a connector which allows inputting of video data thereon and a board for mounting a display control circuit to be connected to the connector thereon on a surface of a display module opposite to an observation side, the board for mounting the connector thereon and the board for mounting the display control circuit thereon are physically separated from each other and, further, an area of the board for mounting the display control circuit thereon is set smaller than an area of the board for mounting the connector thereon.

Abstract: A counter voltage supply circuit has an inverting amplifier that inversely amplified a voltage detected from a specified part of a counter electrode of a liquid crystal display panel and supplies the amplified voltage to a counter voltage supply end of the counter electrode. The inverting amplifier includes an operational amplifier having a feedback resistor connected between an inverting input terminal and an output terminal. The feedback resistor includes a first resistor, and n resistors each of which is connected parallel to the first resistor via a switching element. As the n switching elements are selectively turned on and off by a switching element control circuit in accordance with a scanning position, the resistance value of the feedback resistor is varied and the gain of the operational amplifier is changed.

Abstract: A liquid crystal display includes pixels each having an switching element, drain drivers and gate drivers for operating the switching elements and the pixels, and drain lines and gate lines supplying signals from the drain drivers and the gate drivers to the switching elements being formed on one of a pair of substrates sandwiching a liquid crystal layer. Wiring lines are formed on the one of a pair of substrates for transferring display data signals and a clock signal to the gate drivers.

Abstract: In a display device forming a board for mounting a connector which allows inputting of video data thereon and a board for mounting a display control circuit to be connected to the connector thereon on a surface of a display module opposite to an observation side, the board for mounting the connector thereon and the board for mounting the display control circuit thereon are physically separated from each other and, further, an area of the board for mounting the display control circuit thereon is set smaller than an area of the board for mounting the connector thereon.

Abstract: In a display device forming a board for mounting a connector which allows inputting of video data thereon and a board for mounting a display control circuit to be connected to the connector thereon on a surface of a display module opposite to an observation side, the board for mounting the connector thereon and the board for mounting the display control circuit thereon are physically separated from each other and, further, an area of the board for mounting the display control circuit thereon is set smaller than an area of the board for mounting the connector thereon.

Abstract: In a liquid crystal display device, drain signal lines which supply the video signal are arranged to cross gate signal lines which supply the scanning signal and counter voltage signal lines which supply the reference signal. The reference signal is supplied to the pixels for every selected pixel row. Further, the counter voltage signal lines in other pixel rows except for the selected pixel rows are respectively configured to assume a floating state.

Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel. A liquid crystal display device includes a liquid crystal display panel, a light guide plate, a fluorescent tube, and a lamp reflector. First and second lamp cables of different length are connected to the fluorescent tube.

Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel. A liquid crystal display device includes a liquid crystal display panel, a light guide plate, a fluorescent tube, and a lamp reflector. First and second lamp cables of different length are connected to the fluorescent tube.

Abstract: Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel.