JP2000347636A5

JP2000347636A5 -

Info

Publication number: JP2000347636A5
Application number: JP2000090046A
Authority: JP
Filing date: 2000-03-29
Publication date: 2005-06-16
Anticipated expiration: 2020-03-29

Claims

An active matrix circuit including an active matrix circuit including a plurality of pixel TFTs, and a source driver and a gate driver for controlling the active matrix circuit;
A counter substrate having a counter electrode;
A liquid crystal sandwiched between the active matrix substrate and the counter substrate;
A circuit for converting the first digital video data into second digital video data for gradation display in voltage gradation and time gradation;
A liquid crystal display device comprising: a circuit for converting the second digital video data into analog video data.

An active matrix circuit including an active matrix circuit including a plurality of pixel TFTs, and a source driver and a gate driver for controlling the active matrix circuit;
A counter substrate having a counter electrode;
A liquid crystal sandwiched between the active matrix substrate and the counter substrate;
Of the m-bit first digital video data, n-bit digital video data is displayed with gradation in voltage gradation, and (mn) bit digital video data is displayed with gradation in time gradation. A circuit for converting into digital video data of 2 (m and n are both positive numbers of 2 or more, m> n),
And a circuit for converting the second digital video data into analog video data.

An active matrix circuit including an active matrix circuit including a plurality of pixel TFTs, and a source driver and a gate driver for controlling the active matrix circuit;
A counter substrate having a counter electrode;
A liquid crystal sandwiched between the active matrix substrate and the counter substrate;
Of the m-bit first digital video data, n-bit digital video data is displayed with gradation in voltage gradation, and (mn) bit digital video data is displayed with gradation in time gradation. A circuit for converting into digital video data of 2 (m and n are both positive numbers of 2 or more, m> n),
A circuit for converting the second digital video data into analog video data;
Having a backlight,
A liquid crystal display device using an LED for the backlight.

An active matrix circuit including an active matrix circuit including a plurality of pixel TFTs, and a source driver and a gate driver for controlling the active matrix circuit;
A counter substrate having a counter electrode;
A liquid crystal sandwiched between the active matrix substrate and the counter substrate;
Of the m-bit first digital video data, n-bit digital video data is displayed with gradation in voltage gradation, and (mn) bit digital video data is displayed with gradation in time gradation. A circuit for converting into digital video data of 2 (m and n are both positive numbers of 2 or more, m> n),
A circuit for converting the second digital video data into analog video data;
Having a backlight,
LED is used for the backlight,
A liquid crystal display device which performs display in an OCB mode.

The display using the said liquid crystal display device as described in any one of Claims 1 thru | or 4.

6. The display according to claim 5, wherein the display is 10 inches diagonal.

6. The display according to claim 5, wherein the display has a diagonal of 30 inches or more.

The projector using the said liquid crystal display device as described in any one of Claims 1 thru | or 4.

A goggle type display using two liquid crystal display devices according to any one of claims 1 to 4.

The portable information terminal using the said liquid crystal display device as described in any one of Claims 1 thru | or 4.

The computer using the said liquid crystal display device as described in any one of Claims 1 thru | or 4.

An active matrix circuit including a plurality of pixel TFTs, a source driver and a gate driver for controlling the active matrix circuit, a liquid crystal, and a first digital video data for gradation display with voltage gradation and time gradation. A circuit for converting the second digital video data into analog video data, and a circuit for converting the second digital video data into analog video data,
The source driver supplies the analog video data to the active matrix circuit;
The method of driving a liquid crystal display device, wherein the active matrix circuit forms an image of one frame by a plurality of subframes based on the analog video data.

An active matrix circuit including a plurality of pixel TFTs, a source driver and a gate driver for controlling the active matrix circuit, a liquid crystal, and n-bit digital video data out of m-bit first digital video data And (m−n) bits of digital video data are converted into second digital video data for gradation display with time gradation (m and n are both positive numbers of 2 or more, m > N) and a circuit for converting the second digital video data into analog video data,
The source driver supplies the analog video data to the active matrix circuit;
The active matrix circuit is based on the analog video data and 2 ^(m-n)(m-n) A method of driving a liquid crystal display device, wherein an image of one frame is formed by a plurality of sub-frames.

An active matrix circuit including a plurality of pixel TFTs and pixel electrodes, a source driver and a gate driver for controlling the active matrix circuit, a liquid crystal, and n-bit digital video data among m-bit first digital video data. A circuit that performs gradation display with voltage gradation and converts (m−n) -bit digital video data into second digital video data for gradation display with time gradation (m and n are both positive and equal to 2 or more) M> n), a circuit for converting the second digital video data into analog video data, and a counter electrode drive circuit for controlling the potential of the counter electrode,
The source driver supplies the analog video data to the active matrix circuit;
The active matrix circuit is based on the analog video data and 2 ^(m-n)(m-n) An image of one frame is formed by subframes,
When at least one of the plurality of sub-frames starts, the source driver applies a voltage to the pixel electrode, and the counter electrode driver circuit applies a voltage to the counter electrode to place the liquid crystal in a bend alignment. A method for driving a liquid crystal display device.

An active matrix circuit including a plurality of pixel TFTs and pixel electrodes, a source driver and a gate driver for controlling the active matrix circuit, a liquid crystal, and n-bit digital video data among m-bit first digital video data. A circuit that performs gradation display with voltage gradation and converts (m−n) -bit digital video data into second digital video data for gradation display with time gradation (m and n are both positive and equal to 2 or more) M> n), a circuit for converting the second digital video data into analog video data, and a counter electrode driving circuit for controlling the potential of the counter electrode,
The source driver supplies the analog video data to the active matrix circuit;
The active matrix circuit is based on the analog video data and 2 ^(m-n)(m-n) An image of one frame is formed by subframes,
When at least one of the plurality of subframes starts, the source driver applies a voltage to the pixel electrode, and the counter electrode driving circuit applies a voltage to the counter electrode to place the liquid crystal in a bend alignment. ,
A method for driving a liquid crystal display device, wherein the direction of an electric field applied to the liquid crystal is reversed each time the plurality of subframes are started.

An active matrix circuit including a plurality of pixel TFTs and pixel electrodes, a source driver and a gate driver for controlling the active matrix circuit, a liquid crystal, and n-bit digital video data among m-bit first digital video data. A circuit that performs gradation display with voltage gradation and converts (m−n) -bit digital video data into second digital video data for gradation display with time gradation (m and n are both positive and equal to 2 or more) Number, m> n), a circuit for converting the second digital video data into analog video data, a counter electrode drive circuit for controlling the potential of the counter electrode, and a backlight,
The source driver supplies the analog video data to the active matrix circuit;
The active matrix circuit is based on the analog video data and 2 ^(m-n)(m-n) An image of one frame is formed by subframes,
When at least one of the plurality of subframes starts, the source driver applies a voltage to the pixel electrode, and the counter electrode driving circuit applies a voltage to the counter electrode to place the liquid crystal in a bend alignment. ,
Each time the subframes start, the direction of the electric field applied to the liquid crystal is reversed,
A method of driving a liquid crystal display device, wherein field sequential driving is performed using an LED for the backlight.