DISPLAY DEVICE

• US 20180350317A1
• Filed: 01/09/2018
• Published: 12/06/2018
• Est. Priority Date: 06/05/2017
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: SHIN, Seung-Woon, PARK, Sung-Jae, LEE, Kyung-Hun
• Application Number:
  US15/865,751
• Publication Number:
  US 20180350317A1
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/134336 Matrix
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• 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 2310/0264 Details of driving circuits
• 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 2320/0247 Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
• CPC Class Codes: G09G 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• 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 3/3696 Generation of voltages supplied to electrode drivers

Abstract

A display device includes a display unit that includes a plurality of unit areas, wherein each of the plurality of unit areas includes a plurality of pixels arranged in a matrix format, the plurality of pixels include a plurality of high-level pixels receiving a data voltage of relatively high luminance and a plurality of low-level pixels receiving a data voltage of relatively low luminance with respect to the same image data, and in the unit areas, high-level pixel pairs and low-level pixel pairs are alternately arranged in a row direction, and one high-level pixel and one low-level pixel are alternately arranged in a column direction.

Claims

1. A display device comprising a display unit including a plurality of unit areas,

wherein each of the plurality of unit areas comprises a plurality of pixels arranged in a matrix format,

the plurality of pixels comprise a plurality of high-level pixels receiving a data voltage of relatively high luminance and a plurality of low-level pixels receiving a data voltage of relatively low luminance with respect to the same image data, and

in the unit areas, high-level pixel pairs and low-level pixel pairs are alternately arranged in a row direction, and one high-level pixel and one low-level pixel are alternately arranged in a column direction.

2. The display device of claim 1, wherein each of the plurality of unit areas further comprises a plurality of data lines connected to the plurality of pixels and extending along corresponding pixel columns, and

a plurality of pixels included in two adjacent pixel rows are respectively connected to a data line of a first side among two adjacent opposite data lines, and a plurality of pixels included in two other adjacent pixel rows that are adjacent to the two adjacent pixel rows are connected to a data line of the second side among the two adjacent opposite data lines.

3. The display device of claim 2, wherein each of the plurality of unit areas further comprises a plurality of gate lines each extending in a row direction for one pixel row and connected to the plurality of pixels, and each of the plurality of pixels connected to the same gate line is connected to a data line on the same side among the two adjacent opposite data lines.

4. The display device of claim 2, wherein polarities of data voltages applied to two adjacent opposite data lines of the pixel columns are different to each other.

5. The display device of claim 4, wherein the number of high-level pixels connected to a first data line where a positive data voltage is applied, the number of high-level pixels connected to a second data line where a negative data voltage is applied, the number of low-level pixels connected to the first data line, and the number of low-level pixels connected to the second data line are equal to each other.

6. The display device of claim 1, wherein each of the plurality of unit areas comprises a plurality of pixels arranged in a matrix of 4 rows and 12 columns.

7. The display device of claim 1, wherein the plurality of high-level pixels comprise a first high-level pixel displaying a first color, a second high-level pixel displaying a second color, and a third high-level pixel displaying a third color, and

the plurality of low-level pixels comprise a first low-level pixel displaying the first color, a second low-level pixel displaying the second color, and a third low-level pixel displaying the third color.

8. The display device of claim 7, wherein the plurality of pixels are arranged in an order of the first color, the second color, and the third color in the row direction, and are arranged by the same color in the column direction.

9. The display device of claim 7, wherein each of the first to third high-level pixels is divided into a first sub-pixel of a high level and a second sub-pixel of a high level connected to the same gate line and the same data line, and each of the first to third low-level pixels is divided into a first sub-pixel of a low level and a second sub-pixel of a low level connected to the same gate line and the same data line.

10. The display device of claim 9, wherein the first sub-pixel of the high level and the second sub-pixel of the high level receive the same gate signal and the same data voltage, and the second sub-pixel of the high level is charged with a relatively lower pixel voltage than the first sub-pixel of the high level.

11. The display device of claim 10, wherein the first sub-pixel of the low level and the second sub-pixel of the low level receive the same gate signal and the same data voltage, and the second sub-pixel of the low level is charged with a relatively lower pixel voltage than the first sub-pixel of the low level.

12. The display device of claim 11, wherein the first sub-pixel of the low level displays an image with luminance that is relatively lower than that of the second sub-pixel of the high level.

13. A display device comprising:

a first gate line to a fourth gate line that are extended in a first direction and adjacent to each other; and

a plurality of high-level pixels and a plurality of low-level pixels connected to the first to fourth gate lines,

wherein high-level pixel pairs and low-level pixel pairs are alternately arranged in the first direction and connected to the first and third gate lines,

low-level pixel pairs and high-level pixel pairs are alternately arranged in the first direction and connected to the second and fourth gate lines, and

the plurality of high-level pixels receive a data voltage of relatively higher luminance than the plurality of low-level pixels with respect to the same image data.

14. The display device of claim 13, further comprising a plurality of data lines connected to the plurality of high-level pixels and the plurality of low-level pixels,

wherein a plurality of high-level pixels connected to the first gate line are connected to the same data line to which a plurality of low-level pixels connected to the second gate line are connected,

a plurality of low-level pixels connected to the first gate line are connected to the same data line to which a plurality of high-level pixels connected to the second gate line are connected,

a plurality of high-level pixels connected to the third gate line are connected to the same data line to which a plurality of low-level pixels connected to the fourth gate line are connected, and

a plurality of low-level pixels connected to the third gate line are connected to the same data line to which a plurality of high-level pixels connected to the fourth gate line are connected.

15. The display device of claim 14, wherein a plurality of high-level pixels and a plurality of low-level pixels connected to the first gate line and the second gate line are respectively connected to a data line of a first side among two adjacent opposite data lines, and

a plurality of high-level pixels and a plurality of low-level pixels connected to the third gate line and the fourth gate line are connected to a data line of a second side among the two adjacent opposite data lines.

16. The display device of claim 13, wherein each of the plurality of high-level pixels is divided into a first sub-pixel of a high level and a second sub-pixel of a high level connected to the same gate line and the same data line, and

each of the plurality of low-level pixels is divided into a first sub-pixel of a low level and a second sub-pixel of a low level connected to the same gate line and the same data line.

17. The display device of claim 16, wherein the first sub-pixel of the high level and the second sub-pixel of the high level receive the same gate signal and the same data voltage, and the second sub-pixel of the high level is charged with a relatively lower pixel voltage than the first sub-pixel of the high level.

18. The display device of claim 17, wherein the first sub-pixel of the low level and the second sub-pixel of the low level receive the same gate signal and the same data voltage, and the second sub-pixel of the low level is charged with a relatively lower pixel voltage than the first sub-pixel of the low level.

19. A display device comprising a plurality of pixels arranged in a matrix format and a display unit including a plurality of data lines connected to the plurality of pixels,

wherein the display unit comprises:

a first pixel row including high-level pixel pairs and low-level pixel pairs that are connected to a data line of a first side among two opposite data lines and alternately arranged in a row direction;

a second pixel row including low-level pixel pairs and high-level pixel pairs that are connected to the data line of the first side among the two opposite data lines and alternately arranged in the row direction;

a third pixel row including high-level pixel pairs and low-level pixel pairs that are connected to a data line of a second side among the two opposite data lines and alternately arranged in a row direction; and

a fourth pixel row including low-level pixel pairs and high-level pixel pairs that are connected to the data line of the second side among the two opposite data lines and alternately arranged in the row direction, and

the high-level pixels among the plurality of pixels receive a data voltage of relatively higher luminance than the low-level pixels with respect to the same image data.

20. The display device of claim 19, wherein the high-level pixels are divided into a first sub-pixel of a high level and a second sub-pixel of a high level connected to the same gate line and the same data line, and the second sub-pixel of the high level is charged with a relatively lower pixel voltage than the first sub-pixel of the high level, and

the low-level pixels are divided into a first sub-pixel of a low level and a second sub-pixel of a low level connected to the same gate line and the same data line, and the second sub-pixel of the low level is charged with a relatively lower pixel voltage than the first sub-pixel of the low level.