Liquid crystal display device
OwnerYoshiaki Nakayoshi, Kazuhiko Yanagawainventors
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Abstract
The present invention resolves a drawback attributed to charging up of a charge to another substrate which faces one substrate on which pixel electrodes and counter electrodes are formed in an opposed manner. In a liquid crystal display device which includes a pixel electrode and a counter electrode which generates an electric field between the counter electrode and the pixel electrode in each pixel region on a liquid-crystal-side surface of one of respective substrates which are arranged to face each other by way of liquid crystal, a voltage supplied to the counter electrode is a voltage which is sharply changed after starting of display by the liquid crystal display device and, thereafter, assumes a stationary state.
Claims20
A liquid crystal display device in which respective substrates are arranged in an opposed manner by way of liquid crystal and a pixel electrode and a counter electrode which generates an electric field between the counter electrode and the pixel electrode are formed on each one of pixel regions formed on a liquid-crystal-side surface of one substrate out of the respective substrates, wherein
- the liquid crystal display device further includes a control circuit which controls a voltage signal supplied to the counter electrode by taking a charge quantity which is charged to another substrate side out of the respective substrates by an electric field generated between the pixel electrode and the counter electrode into consideration.
A liquid crystal display device in which respective substrates are arranged in an opposed manner by way of liquid crystal and a pixel electrode and a counter electrode which generates an electric field between the counter electrode and the pixel electrode are formed on each one of pixel regions formed on a liquid-crystal-side surface of one substrate out of the respective substrates, wherein
- the liquid crystal display device further includes a control circuit which controls a voltage signal supplied to the counter electrode, and the control circuit supplies a voltage signal set based on the influence of a charge quantity charged to another substrate side out of the respective substrates to the counter electrode.
A liquid crystal display device in which respective substrates are arranged in an opposed manner by way of liquid crystal and a pixel electrode and a counter electrode which generates an electric field between the counter electrode and the pixel electrode are formed on each one of pixel regions formed on a liquid-crystal-side surface of one substrate out of the respective substrates, wherein
- the liquid crystal display device further includes a control circuit which controls a voltage signal supplied to the counter electrode, and using preset data indicative of a suitable voltage signal, the control circuit supplies a voltage signal which approximates the suitable voltage signal to the counter electrode.
A liquid crystal display device in which respective substrates are arranged in an opposed manner by way of liquid crystal and a pixel electrode and a counter electrode which generates an electric field between the counter electrode and the pixel electrode are formed on each one of pixel regions formed on a liquid-crystal-side surface of one substrate out of the respective substrates, wherein
- a voltage supplied to the counter electrode is a voltage which is sharply changed after starting of display by the liquid crystal display device and, thereafter, assumes a stationary state.
A liquid crystal display device in which a pixel electrode to which a video signal is supplied and a counter electrode to which a signal constituting the reference with respect to the video signal is supplied are formed on each one of respective pixel regions arranged in a matrix array, wherein
- the liquid crystal display device further includes light detection means which detects the intensity of light which is transmitted to the pixel region and control means which changes a voltage value of a signal supplied to the counter electrode in response to an output from the light detection means.
A liquid crystal display device in which respective substrates are arranged in an opposed manner by way of liquid crystal and a pixel electrode and a counter electrode are formed on each one of pixel regions formed on a liquid crystal side of one substrate out of respective substrates, wherein
- at least on a liquid-crystal-side surface of another substrate out of the respective substrates, an orientation film whose specific resistance is set to a value which falls within a range of 1×109 Ωcm to 1×1013 Ωcm is formed.
A liquid crystal display device in which a pair of substrates which are arranged in an opposed manner by way of liquid crystal are provided, pixel electrodes and counter electrodes which generate an electric field by way of the liquid crystal are provided, and a potential of the pixel electrodes is set such that a video signal is supplied to video signal lines from a video signal driving circuit by way of thin film transistors in response to a scanning signal which is supplied to scanning signal lines from a scanning signal driving circuit, wherein
- the video signal driving circuit and the scanning signal driving circuit are controlled in response to signals from a controller, and the liquid crystal display device further includes a D/A converter which generates a counter voltage supplied to the counter electrodes in response to the signals from the controller.
Dependencies are inferred from the claim text.