Color display having horizontal sub-pixel arrangements and layouts

• US 7,283,142 B2
• Filed: 10/22/2002
• Issued: 10/16/2007
• Est. Priority Date: 07/28/2000
• Status: Expired due to Term

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Clairvoyante, Inc. (Samsung Electronics Co. Ltd.)
• Inventors: Credelle, Thomas Lloyd, Brown Elliott, Candice Hellen, Im, Moon Hwan
• Primary Examiner(s): WANG, JIN CHENG
• Application Number:
  US10/278,393
• Publication Number:
  US 20030090581A1
• Time in Patent Office: 1,820 Days
• Field of Search: 345/589, 345690-695, 345597-598, 345/72, 345/83, 345/88, 345/649
• US Class Current: 345/694
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2300/0443 with several sub-pixels for the same colour in a pixel, not specifically used to display gradations G09G3/364 takes precedence
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2300/0465 Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
• CPC Class Codes: G09G 2300/06 Passive matrix structure, i.e. with direct application of both column and row voltages to the light emitting or modulating elements, other than LCD or OLED
• CPC Class Codes: G09G 2300/08 Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
• CPC Class Codes: G09G 2320/0209 Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/2074 using sub-pixels
• CPC Class Codes: G09G 3/3607 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127
• CPC Class Codes: G09G 3/3614 Control of polarity reversal in general
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04

Abstract

A color display having horizontal sub-pixel arrangements and layouts is disclosed. The display can include a plurality of a sub-pixel group. The sub-pixel group can have a plurality of sub-pixels wherein each sub-pixel has a height along a vertical axis and a width along a horizontal axis. The width of each sub-pixel is greater in length than its height in the sub-pixel group. The display also includes a column driver coupled to each sub-pixel in a column and a row driver coupled to each sub-pixel in a row of the sub-pixel group. Each sub-pixel in the sub-pixel group is coupled to the row driver along the width of the sub-pixel.

Claims

1. A display system comprising:

a display panel substantially comprising a plurality of sub-pixel groups;

each sub-pixel group of the plurality of sub-pixel groups comprising six sub-pixels in first, second and third primary colors disposed in three rows and two columns;

each sub-pixel having a width along a horizontal axis greater than a height along a vertical axis;

one of said three rows of said sub-pixel group forming a horizontal stripe of first and second same-colored sub-pixels in said first primary color;

each of second and third rows of said sub-pixel group comprising one of each of said second and third primary color sub-pixels;

a first row driver coupled to said first same-colored sub-pixel in said horizontal stripe of first and second same-colored sub-pixels of the sub-pixel group; and

a second row driver coupled to said second same-colored sub-pixel in said horizontal stripe of first and second same-colored sub-pixels of the sub-pixel group.

2. The display system as recited in claim 1 wherein said horizontal stripe of first and second same-colored sub-pixels comprises blue sub-pixels aligned substantially along a horizontal axis on said display panel.

3. The display system of claim 1 further comprising:

a pair of column drivers each coupled to said sub-pixels of said second and third primary colors disposed in one of said two columns of sub-pixels of said sub-pixel group; and

a third column driver coupled to said sub-pixels of said first primary color disposed in said two columns of sub-pixels of said sub-pixel group.

4. The display system of claim 3 wherein one of said pair of column drivers and said third column driver are both disposed between said two columns of sub-pixels of said sub-pixel group.

5. The display system of claim 3 wherein one of said pair of column drivers coupled to said sub-pixels in said second and third primary colors is disposed to the right of said two columns of sub-pixels of said sub-pixel group.

6. The display system of claim 1 wherein said second and third primary color sub-pixels disposed in each of said second and third rows of said sub-pixel group form a checkerboard pattern such that a third primary color subpixel follows a second primary color subpixel in said second row and a second primary color subpixel follows a third primary color subpixel in said third row of said sub-pixel group.

7. The display system of claim 1 wherein said first and second same-colored sub-pixels in said first primary color of said sub-pixel group forming said horizontal stripe are shorter in height along said vertical axis than said sub-pixels in said second and third primary colors.

8. The display system of claim 1 wherein said first and second same-colored sub-pixels in said first primary color of said sub-pixel group forming said horizontal stripe are one-half the height of said sub-pixels in said second and third primary colors along said vertical axis.

9. The display system as recited in claim 1 wherein said horizontal stripe of first and second same-colored sub-pixels in said sub-pixel group comprises green sub-pixels aligned substantially along a horizontal axis on said display panel.

10. The display system as recited in claim 1 wherein said first row driver is further coupled to said second and third primary color sub-pixels in said second row of said sub-pixel group;

and wherein said second row driver is further coupled to said second and third primary color sub-pixels in said third row of said sub-pixel group.

11. A display system comprising:

a display panel substantially comprising a plurality of sub-pixel groupings;

each sub-pixel grouping of the plurality of sub-pixel groupings comprising eight sub-pixels disposed in two columns and four rows such that two non-adjacent rows form first and second non-adjacent horizontal stripes of a first color and two other non-adjacent rows each comprises one sub-pixel of a second color and one sub-pixel of a third color;

a first row driver coupled to at least one sub-pixel in said first horizontal stripe of sub-pixels and to said sub-pixels in a first one of said non-adjacent rows of second and third color sub-pixels in said sub-pixel grouping; and

a second row driver coupled to at least one sub-pixel in said second horizontal stripe of sub-pixels and to said sub-pixels in a second one of said non-adjacent rows of second and third color sub-pixels in said sub-pixel group.

12. The display as recited in claim 11 wherein said first color comprises a green color and each said second color and said third color comprise one of a group, said group comprising red and blue colors, respectively.

13. The display as recited in claim 11 wherein said first color comprises a red color and each said second color and said third color comprise one of a group, said group comprising green and blue colors, respectively.

14. The display as recited in claim 11 wherein said first set of two non-adjacent columns further comprise four sub-pixels of a first color wherein said four sub-pixels of a first color comprising a smaller area than said sub-pixels of second color and said sub-pixels of said third color.

15. The display as recited in claim 11 wherein said display comprises an AMLCD display and said display applies a dot inversion scheme for driving the sub-pixels.

16. The display as recited in claim 15 wherein said dot inversion scheme is 1×

1 dot inversion.

17. The display as recited in claim 15 wherein said dot inversion scheme is 2×

1 dot inversion.

18. The display system of claim 11 further comprising:

first and second column drivers each coupled to said sub-pixels of said second and third colors disposed in respective first and second columns of sub-pixels of said sub-pixel grouping; and

a third column driver disposed between said first and second columns of said sub-pixel grouping and coupled to said sub-pixels of said first color disposed in only one column of said sub-pixel grouping.

19. The display system of claim 18 wherein said third column is coupled to said sub-pixels of said first color disposed in said second column of said sub-pixel grouping and sends image data signals to said first color sub-pixels disposed in the second column of said sub-pixel grouping and to first color sub-pixels disposed in the first column of an adjacent sub-pixel grouping via a single thin film transistor (TFT).

20. The display system of claim 11 further comprising:

first and second column drivers each coupled to said sub-pixels of said second and third colors disposed in respective first and second columns of sub-pixels of said sub-pixel grouping; and

a third column driver disposed between said second column of a first sub-pixel grouping and a first column of an adjacent second sub-pixel grouping;

said third column driver being coupled to said sub-pixels of said first color disposed in both said second column of said first sub-pixel grouping and said first column of said adjacent second sub-pixel grouping.

21. A display system comprising:

a display panel substantially comprising a plurality of sub-pixel groupings forming a matrix of sub-pixel groupings on said display panel;

each sub-pixel grouping of the plurality of sub-pixel groupings comprising eight sub-pixels disposed in two columns and four rows such that two non-adjacent rows form first and second non-adjacent horizontal stripes of a first color and two other non-adjacent rows each comprises one sub-pixel of a second color and one sub-pixel of a third color; and

a plurality of row drivers coupled to rows of sub-pixels in said sub-pixel grouping;

a first subset of said row drivers sending signals from a first side of said display panel, and a second subset of said row drivers sending signals from a second side of said display panel opposite to said first side.

22. The display system of claim 21 wherein said first subset of row drivers comprises first and second row drivers coupled to said sub-pixels in respective ones of said non-adjacent rows of second and third color sub-pixels in said sub-pixel grouping;

and

said second subset of row drivers comprises a third row driver coupled to said sub-pixels in both of said non-adjacent rows forming first and second horizontal non-adjacent stripes of said first color in said sub-pixel grouping.

23. The display system of claim 21 wherein a number of row drivers in said first subset of row drivers is equal to a number of row drivers in said second subset of row drivers for every two vertically adjacent sub-pixel groupings.