Liquid crystal display device and projector

A liquid crystal display device comprising:

• a liquid crystal display panel including a plurality of pixels which are arranged in a matrix array;
• and
• a drive circuit which controls and drives the respective pixels;
• wherein
• each pixel includes a pixel electrode, a pixel transistor, a first transistor which is connected between the pixel transistor and the pixel electrode, and a capacitive element which is connected between the pixel transistor and the first transistor, and
• the drive circuit sequentially turns on the pixel transistors of the respective pixels on each display line thus sequentially writing a video voltage into the capacitive elements of the respective pixels and, thereafter, turns on the first transistors of the respective pixels on a plurality of display lines sequentially for every plurality of display lines thus writing the video voltage written in capacitive elements of the respective pixels on the plurality of the respective display lines into the respective pixel capacitances.

A liquid crystal display device comprising:

• a liquid crystal display panel including a plurality of pixels which are arranged in a matrix array;
• and
• a drive circuit which controls and drives the respective pixels;
• wherein
• each pixel includes a pixel electrode, a pixel transistor, a first transistor which is connected between the pixel transistor and the pixel electrode, and a capacitive element which is connected between the pixel transistor and the first transistor, and
• the drive circuit sequentially turns on the pixel transistors of the respective pixels on each display line thus sequentially writing a video voltage into the capacitive elements of the respective pixels and, thereafter, turns on the first transistors of the respective pixels on each display line thus writing the video voltage written in the capacitive elements of the respective pixels into respective pixel capacitances.

A liquid crystal display device comprising:

• a liquid crystal display panel including a plurality of pixels which are arranged in a matrix array;
• and
• a drive circuit which controls and drives the respective pixels;
• wherein
• each pixel includes a pixel electrode, a pixel transistor, a first transistor which is connected between the pixel transistor and the pixel electrode, and a capacitive element which is connected between the pixel transistor and the first transistor, and
• the drive circuit sequentially turns on the pixel transistors of the respective pixels on each display line a plurality of times for every frame thus sequentially writing a video voltage into the capacitive elements of the respective pixels and, thereafter, turns on the first transistors of the respective pixels simultaneously thus collectively writing the video voltage written in the capacitive elements of the respective pixels into pixel capacitances.

A projector comprising:

• a light source;
• a plurality of liquid crystal display panels which modify light irradiated from the light source;
• and
• a screen to which the light modified by the respective liquid crystal display panels is projected, wherein
• each liquid crystal display panel includes a plurality of pixels arranged in a matrix array and a drive circuit which controls and drives the respective pixels;
• and
• each pixel includes a pixel electrode, a pixel transistor, a first transistor which is connected between the pixel transistor and the pixel electrode, and a capacitive element which is connected between the pixel transistor and the first transistor, and
• the drive circuit sequentially turns on the pixel transistors of the respective pixels on each display line thus sequentially writing a video voltage into the capacitive elements of the respective pixels and, thereafter, turns on the first transistors of the respective pixels simultaneously thus collectively writing the video voltage written in the capacitive elements of the respective pixels into pixel capacitances.

A projector comprising:

• a light source;
• a plurality of liquid crystal display panels which modify light irradiated from the light source;
• and
• a screen to which the light modified by the respective liquid crystal display panels is projected, wherein
• each liquid crystal display panel includes a plurality of pixels arranged in a matrix array and a drive circuit which controls and drives the respective pixels;
• and
• each pixel includes a pixel electrode, a pixel transistor, a first transistor which is connected between the pixel transistor and the pixel electrode, and a capacitive element which is connected between the pixel transistor and the first transistor, and
• the drive circuit sequentially turns on the pixel transistors of the respective pixels on each display line thus sequentially writing a video voltage into the capacitive elements of the respective pixels and, thereafter, turns on the first transistors of the respective pixels on a plurality of display lines sequentially for every plurality of display lines thus writing the video voltage written in capacitive elements of the respective pixels on the plurality of the respective display lines into the respective pixel capacitances.

A projector comprising:

• a light source;
• a plurality of liquid crystal display panels which modify light irradiated from the light source;
• and
• a screen to which the light modified by the respective liquid crystal display panels is projected, wherein
• each liquid crystal display panel includes a plurality of pixels arranged in a matrix array a drive circuit which controls and drives the respective pixels;
• and
• each pixel includes a pixel electrode, a pixel transistor, a first transistor which is connected between the pixel transistor and the pixel electrode, and a capacitive element which is connected between the pixel transistor and the first transistor, and
• the drive circuit sequentially turns on the pixel transistors of the respective pixels on each display line thus sequentially writing a video voltage into the capacitive elements of the respective pixels and, thereafter, turns on the first transistors of the respective pixels on each display line thus writing the video voltage written in the capacitive elements of the respective pixels into respective pixel capacitances.

A projector comprising:

• a light source;
• a plurality of liquid crystal display panels which modify light irradiated from the light source;
• and
• a screen to which the light modified by the respective liquid crystal display panels is projected, wherein
• the orientation directions of the respective liquid crystal display panels are aligned on the screen.

A projector comprising:

• a light source;
• a plurality of liquid crystal display panels which modify light irradiated from the light source;
• and
• a screen to which the light modified by the respective liquid crystal display panels is projected, wherein
• the orientation direction of one liquid crystal display panel in the plurality of liquid crystal display panels differs from the orientation directions of other liquid crystal display panels.

A projector comprising:

• a light source;
• a plurality of liquid crystal display panels which modify light irradiated from the light source;
• and
• a screen to which the light modified by the respective liquid crystal display panels is projected, wherein
• the orientation directions of the respective liquid crystal display panels are aligned with an extending direction of one of opposedly facing sides out of four sides of the liquid crystal display panel.

A projector comprising:

• a light source;
• a plurality of liquid crystal display panels which modify light irradiated from the light source;
• a screen to which light modified by the respective liquid crystal display panels is projected;
• and
• a control circuit which drives the respective liquid crystal display panel, wherein
• the control circuit includes:
• a pattern output circuit which generates and outputs an arbitrary pattern which is used in an inspection or a test;
• and
• a still image output circuit which generates and outputs an arbitrary still image which is used in the inspection or the test.