Liquid crystal display apparatus
First Claim
Patent Images
1. A liquid crystal display apparatus comprising:
- a liquid crystal display composed of a pair of substrates, a liquid crystal layer laid between said pair of substrates, a plurality of electrode groups for applying an electric field onto said liquid crystal layer, and a plurality of active elements being connected with said electrode groups and having a plurality of sub-pixel structures; and
a backlight unit having a capability of controlling light emission of each color, for applying a ray of light of each color onto said liquid crystal display; and
a controller for controlling a change of display data of each color on said liquid crystal display and a quantity of each color ray of light emitted from said backlight unit, based on an output signal sent from a backlight sensor for sensing light emission of said backlight unit and a video signal of each color being inputted for displaying the corresponding image on said liquid crystal display.
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Abstract
The liquid crystal display apparatus includes a liquid crystal display, a backlight unit for emitting rays of light of three or more colors, the ray of each color being controlled, and applying these rays of light onto the liquid crystal display. A controller is further provided for controlling a change of display data of each color of the liquid crystal display and an emitted light quantity of each color of the backlight unit at a time, based on a video signal being inputted for displaying the corresponding image and an output signal sent from an ambient light sensor for sensing ambient light.
190 Citations
25 Claims
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1. A liquid crystal display apparatus comprising:
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a liquid crystal display composed of a pair of substrates, a liquid crystal layer laid between said pair of substrates, a plurality of electrode groups for applying an electric field onto said liquid crystal layer, and a plurality of active elements being connected with said electrode groups and having a plurality of sub-pixel structures; and
a backlight unit having a capability of controlling light emission of each color, for applying a ray of light of each color onto said liquid crystal display; and
a controller for controlling a change of display data of each color on said liquid crystal display and a quantity of each color ray of light emitted from said backlight unit, based on an output signal sent from a backlight sensor for sensing light emission of said backlight unit and a video signal of each color being inputted for displaying the corresponding image on said liquid crystal display. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 23, 24, 25)
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2. A liquid crystal display apparatus comprising:
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a liquid crystal display composed of a pair of substrates, a liquid crystal layer laid between said pair of substrates, a plurality of electrode groups for applying an electric field onto said liquid crystal layer, and a plurality of active elements being connected with said electrode groups and having a plurality of sub-pixel structures;
a backlight unit having a capability of controlling light emission of each color, for applying a ray of light of each color onto said liquid crystal display;
a display contents analyzing circuit for analyzing a video signal to be inputted for displaying the corresponding image on said liquid crystal display;
a light sensor for sensing light emission of said backlight unit;
an image quality controller for controlling a changing quantity of each color of display data and a quantity of each color ray of light emitted from said backlight unit based on signals sent from said display contents analyzing circuit and said light sensor;
a display data changing circuit for changing data of each color to be displayed on said liquid crystal display based on a signal sent from said image quality controller; and
a backlight quantity control circuit for controlling an emitted light quantity of each color of said backlight unit based on a signal sent from said image quality controller. - View Dependent Claims (17)
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3. A liquid crystal display apparatus comprising:
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a liquid crystal display composed of a pair of substrates, a liquid crystal layer laid between said pair of substrates, a plurality of electrode groups for applying an electric field onto said liquid crystal layer, and a plurality of active elements being connected with said electrode groups and having a plurality of sub-pixel structures; and
a backlight unit having a capability of controlling light emission of each color, for applying a ray of light of each color onto said liquid crystal display; and
a controller for controlling a change of display data of each color on said liquid crystal display and a quantity of each color ray of light emitted from said backlight unit, based on an output signal sent from a backlight sensor for sensing light emission of said backlight unit, a video signal of each color being inputted for displaying the corresponding image on said liquid crystal display, and an output signal sent from an ambient light sensor for sensing ambient light. - View Dependent Claims (18)
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4. A liquid crystal display apparatus comprising:
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a liquid crystal display composed of a pair of substrates, a liquid crystal layer laid between said pair of substrates, a plurality of electrode groups for applying an electric field onto said liquid crystal layer, and a plurality of active elements being connected with said electrode groups and having a plurality of sub-pixel structures;
a backlight unit having a capability of controlling light emission of each color, for applying a ray of light of each color onto said liquid crystal display;
a display contents analyzing circuit for analyzing a video signal to be inputted for displaying the corresponding image on said liquid crystal display;
a backlight sensor for sensing light emission of said backlight unit;
an ambient light sensor for sensing ambient light;
an image quality controller for controlling a changing quantity of each color of display data and a quantity of each color ray of light emitted from said backlight unit based on signals sent from said display contents analyzing circuit, said backlight sensor, and said ambient light sensor;
a display data changing circuit for changing data of each color to be displayed on said liquid crystal display based on a signal sent from said image quality controller; and
a backlight quantity control circuit for controlling an emitted light quantity of each color of said backlight unit based on a signal sent from said image quality controller. - View Dependent Claims (19)
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Specification