Color liquid crystal display device and image display thereof

• US 8,228,288 B2
• Filed: 10/06/2009
• Issued: 07/24/2012
• Est. Priority Date: 10/12/1995
• Status: Expired due to Fees

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Hirakata, Yoshiharu
• Primary Examiner(s): Nguyen, Kevin M
• Application Number:
  US12/573,916
• Publication Number:
  US 20100026621A1
• Time in Patent Office: 1,022 Days
• Field of Search: 345173-183, 345/530, 345/104, 345/594
• US Class Current: 345/104
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: G09G 5/022 using memory planes
• CPC Class Codes: G09G 5/36 characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory

Abstract

A color liquid crystal display device capable of displaying color images comprises an input pen for use in determining the individual position for color display on the screen of a liquid crystal display panel, a coordinate detector for recognizing the position as designated by the input pen to output the position as the corresponding coordinate data, a color designator circuit for designating a color as presently selected for color display to output the color as a color data, a memory device for storing the color data representative of the color designated, a memory controller responsive to receipt of an address issued from the selected coordinate data for controlling the color data to be written into and read out of the memory, and an output controller which allows the color data read from the memory to be supplied to the liquid crystal display panel as video data.

Claims

1. A color liquid crystal display device comprising:

a display panel comprising pixels arranged in a matrix and liquid crystal;

a color designator for designation of a kind of a color to be displayed;

a coordinate detecting means provided in the display panel;

a memory means for storing color data designated by the color designator;

an output controlling means for outputting image data onto the display panel; and

means for generating the image data using coordinate data outputted from the coordinate detecting means and the color data stored in the memory means,

wherein a coordinate can be inputted by the coordinate detecting means, and

wherein the display panel displays both a color image at a place corresponding to the coordinate and a selection menu for selection of the color.

2. The color liquid crystal display device according to claim 1, wherein the coordinate detecting means comprises at least one selected from the group consisting of a pressure sensor, an electrostatic sensor and a heat sensor.

3. The color liquid crystal display device according to claim 1, wherein each of the pixels includes a thin film transistor.

4. The color liquid crystal display device according to claim 1, wherein the coordinate detecting means forms output signals corresponding to input signals inputted by a pointing device.

5. The color liquid crystal display device according to claim 1,

wherein the memory means includes an N-bits memory;

and

wherein 2^N colors regions are displayed in the selection menu.

6. A color liquid crystal display device comprising:

a display panel comprising pixels arranged in a matrix, liquid crystal and a coordinate detecting means;

a color designator for designation of a kind of a color to be displayed;

a memory means for storing color data designated by the color designator;

an output controlling means for outputting image data onto the display panel; and

means for generating the image data using coordinate data outputted from the coordinate detecting means and the color data stored in the memory means,

wherein a coordinate can be inputted by the coordinate detecting means, and

wherein the display panel displays both a color image at a place corresponding to the coordinate and a selection menu for selection of the color.

7. The color liquid crystal display device according to claim 6, wherein the coordinate detecting means comprises at least one selected from the group consisting of a pressure sensor, an electrostatic sensor and a heat sensor.

8. The color liquid crystal display device according to claim 6, wherein each of the pixels includes a thin film transistor.

9. The color liquid crystal display device according to claim 6, wherein the coordinate detecting means forms output signals corresponding to input signals inputted by a pointing device.

10. The color liquid crystal display device according to claim 6,

wherein the memory means includes an N-bits memory;

and

wherein 2^N colors regions are displayed in the selection menu.

11. A color liquid crystal display device comprising:

a display panel comprising pixels arranged in a matrix and liquid crystal;

a color designator for designation of a kind of a color to be displayed;

a coordinate detecting means provided in the display panel;

a memory means for storing color data designated by the color designator;

an output controlling means for outputting image data onto the display panel; and

means for generating the image data using coordinate data outputted from the coordinate detecting means and the color data stored in the memory means,

wherein a coordinate can be inputted by the coordinate detecting means, and

wherein the display panel displays both a color image at a place corresponding to the coordinate and a color distinction area for selection of the color.

12. The color liquid crystal display device according to claim 11, wherein the coordinate detecting means comprises at least one selected from the group consisting of a pressure sensor, an electrostatic sensor and a heat sensor.

13. The color liquid crystal display device according to claim 11, wherein each of the pixels includes a thin film transistor.

14. The color liquid crystal display device according to claim 11, wherein the coordinate detecting means forms output signals corresponding to input signals inputted by a pointing device.

15. The color liquid crystal display device according to claim 11,

wherein the memory means includes an N-bits memory;

and

wherein 2^N colors regions are displayed in the color distinction area.

16. A color liquid crystal display device comprising:

a display panel comprising pixels arranged in a matrix, liquid crystal and a coordinate detecting means;

a color designator for designation of a kind of a color to be displayed;

a memory means for storing color data designated by the color designator;

an output controlling means for outputting image data onto the display panel; and

means for generating the image data using coordinate data outputted from the coordinate detecting means and the color data stored in the memory means,

wherein a coordinate can be inputted by the coordinate detecting means, and

wherein the display panel displays both a color image at a place corresponding to the coordinate and a color distinction area for selection of the color.

17. The color liquid crystal display device according to claim 16, wherein the coordinate detecting means comprises at least one selected from the group consisting of a pressure sensor, an electrostatic sensor and a heat sensor.

18. The color liquid crystal display device according to claim 16, wherein each of the pixels includes a thin film transistor.

19. The color liquid crystal display device according to claim 16, wherein the coordinate detecting means forms output signals corresponding to input signals inputted by a pointing device.

20. The color liquid crystal display device according to claim 16,

wherein the memory means includes an N-bits memory;

and

wherein 2^N colors regions are displayed in the color distinction area.