Subpixel arrangements of displays and method for rendering the same

• US 10,103,205 B2
• Filed: 11/04/2013
• Issued: 10/16/2018
• Est. Priority Date: 11/04/2013
• Status: Active Grant

• Current Assignee: Viewtrix Technology Co,.Ltd.
• Original Assignee: Shenzhen Yunyinggu Technology Co., Ltd.
• Inventors: Gu, Jing, Luo, Xixi
• Primary Examiner(s): Earles, Bryan
• Application Number:
  US14/380,201
• Publication Number:
  US 20160240593A1
• Time in Patent Office: 1,807 Days
• Field of Search: 315313
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• 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 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 2340/0457 Improvement of perceived resolution by subpixel rendering
• 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 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3225 using an active matrix
• CPC Class Codes: H01L 27/156 two-dimensional arrays
• CPC Class Codes: H10K 59/1213 the pixel elements being TFTs
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/352 the areas of the RGB subpixels being different
• CPC Class Codes: H10K 59/353 characterised by the geometrical arrangement of the RGB subpixels

Abstract

An apparatus including a display and control logic. In one example, the display includes an array of subpixel groups. Each of the subpixel groups includes one subpixel in a first color, two subpixels in a second color, and two subpixels in a third color. Subpixel groups in each row of the array are repeated. Subpixel groups in each row of the array are staggered relative to subpixels groups in an adjacent row of the array. The control logic is operatively coupled to the display and configured to receive display data and convert the display data into control signals for driving the array of subpixel groups.

Claims

1. An apparatus comprising:

a display panel comprising an array of subpixel groups arranged in columns and rows, wherein;

each of the subpixel groups consists of one subpixel of a first color, two subpixels of a second color, and two subpixels of a third color,

in each of the subpixel groups, a center of at least one of the two subpixels of the second color has an offset from a center of the subpixel of the first color along a column direction, and a center of at least one of the two subpixels of the third color has another offset from the center of the subpixel of the first color along an opposite direction of the column direction,

subpixel groups in each row of the array are repeated along the row direction,

subpixel groups in each row of the array are staggered relative to subpixels groups in an adjacent row of the array along the column direction, and

for each of the subpixel groups, each of the subpixels of three colors is staggered with each of the subpixels of a same color in a subpixel group in an adjacent row along the column direction, and each of the subpixels of the three colors is aligned with one of the subpixels of the same color in a subpixel group in an alternating row along the column direction.

2. The apparatus of claim 1, wherein in each of the subpixel groups, a size of a subpixel of the first color is larger than a size of a subpixel of the second color and a size of a subpixel of the third color.

3. The apparatus of claim 1, wherein in each of the subpixel groups,

the two subpixels of the second color are on different sides of the subpixel of the first color along a row direction;

and

the two subpixels of the third color are on different sides of the subpixel of the first color along the row direction.

4. The apparatus of claim 3, wherein each of the subpixel groups is divided into two pixels such that each of the two pixels includes one of the two subpixels of the second color and one of the two subpixels of the third color, and that the subpixel in the first color is shared by the two pixels.

5. The apparatus of claim 4, further comprising:

control logic operatively coupled to the display panel and configured to receive display data and convert the display data into control signals for driving the array of subpixel groups,

wherein the control logic is further configured to, for each subpixel of the first color, provide a respective control signal based on two pieces of display data for displaying the two pixels that share the subpixel in the first color.

6. The apparatus of claim 1, wherein in each of the subpixel groups,

the two subpixels of the second color are aligned along a row direction;

and

the two subpixels of the third color are aligned along the row direction.

7. The apparatus of claim 1, wherein in each of the subpixel groups,

the two subpixels of the second color have same shapes and sizes;

and

the two subpixels of the third color have same shapes and sizes.

8. The apparatus of claim 1, wherein in each of the subpixel groups, each of the subpixels has a substantially rectangular shape.

9. The apparatus of claim 1, wherein in each of the subpixel groups, the first color is blue or red.

10. The apparatus of claim 1, wherein the subpixel groups in each row of the array are staggered relative to the subpixels groups in the adjacent row of the array by half of a width of a subpixel group.

11. The apparatus of claim 1, wherein in each of the subpixel groups,

the two subpixels of the second color are on a same side of the subpixel of the first color along the column direction;

and

the two subpixels of the third color are on different sides of the subpixel of the first color along a row direction.

38. The apparatus of claim 7, wherein in each of the subpixel groups, the subpixels of the second and third colors have same shapes and sizes.

12. An apparatus comprising:

a display comprising;

a display panel having

a light-emitting substrate comprising an array of subpixel groups arranged in columns and rows, a subpixel in each of the subpixel groups corresponding to an organic light-emitting diode (OLED), and

a driving substrate comprising an array of driving elements, each driving element configured to drive a respective OLED; and

control logic operatively coupled to the display and configured to receive display data and convert the display data into control signals for driving the array of subpixel groups, wherein;

each of the subpixel groups consists of one OLED of a first color, two OLEDs of a second color, and two OLEDs of a third color, the OLED of the first color positioned between the two OLEDs of the second color and between the two OLEDs of the third color,

in each of the subpixel groups, centers of the two OLEDs of the second color are aligned along a row direction, centers of the two OLEDs of the third color are aligned along the row direction, and centers of an OLED of the second color and an OLED of the third color are aligned along a column direction,

subpixel groups in each row of the array of subpixel groups are repeated along the row direction,

subpixel groups in each row of the array of subpixel groups are staggered relative to subpixels groups in an adjacent row of the array of subpixel groups along the column direction, and

for each of the subpixel groups, each of the OLEDs of three colors is staggered with each of the OLEDs of a same color in a subpixel group in an adjacent row along the column direction, and each of the OLEDs of the three colors is aligned with one of the OLEDs of the same color in a subpixel group in an alternating row along the column direction.

13. The apparatus of claim 12, wherein in each of the subpixel groups, a size of an OLED of the first color is larger than a size of an OLED of the second color and an OLED of the third color.

14. The apparatus of claim 12, wherein each of the subpixel groups is divided into two pixels such that, each of the two pixels includes one of the two OLEDs of the second color and one of the two OLEDs of the third color, and that the OLED of the first color is shared by the two pixels.

15. The apparatus of claim 14, wherein the control logic is further configured to, for each OLED of the first color, provide a respective control signal based on two pieces of display data for displaying the two pixels that share the OLED of the first color.

16. The apparatus of claim 12, wherein in each of the subpixel groups, each of the two OLEDs of the second color is aligned with a respective one of the two OLEDs of the third color along the column direction.

17. The apparatus of claim 12, wherein in each of the subpixel groups,

the two OLEDs of the second color are aligned along the row direction;

and

the two OLEDs of the third color are aligned along the row direction.

18. The apparatus of claim 12, wherein in each of the subpixel groups,

the two OLEDs of the second color have same shapes and sizes;

and

the two OLEDs of the third color have same shapes and sizes.

19. The apparatus of claim 12, wherein in each of the subpixel groups, each of the OLEDs has a substantially rectangular shape.

20. The apparatus of claim 12, wherein in each of the subpixel groups, the first color is blue or red.

21. The apparatus of claim 12, wherein the subpixel groups in each row of the array are staggered relative to the subpixels groups in the adjacent row of the array by half of a width of a subpixel group.

22. The apparatus of claim 12, wherein in each of the subpixel groups,

the two OLEDs of the second color are on a same side of the OLED of the first color along the column direction;

and

the two OLEDs of the third color are on different sides of the OLED of the first color along the row direction.

23. The apparatus of claim 12, wherein all OLEDs of the second color in the same row of the array share the same organic light-emitting layer.

39. The apparatus of claim 12, wherein in each of the subpixel groups, each of the two OLEDs of the second color shares a same organic light-emitting layer with an OLED of the second color in an adjacent subpixel group in the same row of the array of subpixel groups, and each of the two OLEDs of the third color shares a same organic light-emitting layer with an OLED of the third color in an adjacent subpixel group in the same row of the array of subpixel groups.

24. An apparatus comprising:

a display comprising an array of light-emitting diode (LED) lamps arranged in columns and rows; and

control logic operatively coupled to the display and configured to receive display data and convert the display data into control signals for driving the array of LED lamps, wherein;

each of the LED lamps consists of one LED of a first color, two LED of a second color, and two LEDs of a third color,

in each of the LED lamps, a center of at least one of the two LEDs of the second color has an offset from a center of the LED of the first color along a column direction, and a center of at least one of the two LEDs of the third color has another offset from the center of the LED of the first color along an opposite direction of the column direction,

for each of the LED lamps, each of the LEDs of three colors is staggered with each of the LEDs of a same color of an LED lamp in an adjacent row along the column direction, and each of the LEDs of the three colors is aligned with one of LEDs of the same color in an LED lamp in an alternating row along the column direction,

LED lamps in each row of the array are repeated along the row direction,

LED lamps in each row of the array are staggered relative to LED lamps in an adjacent row of the array along the column direction, and

for each of the LED lamps, each of the LEDs of three colors is staggered with each of the LEDs of a same color in a subpixel group in an adjacent row along the column direction, and each of the LEDs of the three colors is aligned with one of the LEDs of the same color in an LED lamp in an alternating row along the column direction.

25. The apparatus of claim 24, wherein each of the LED lamps emits a white light when all LEDs in the LED lamp are turned on.

26. The apparatus of claim 24, wherein in each of the LED lamps,

the two LEDs of the second color are on different sides of the LED of the first color along a row direction;

and

the two LEDs of the third color are on different sides of the LED of the first color along the row direction.

27. The apparatus of claim 26, wherein each of the LED lamps is divided into two pixels such that each of the two pixels includes one of the two LEDs of the second color and one of the two LEDs of the third color, and that the LED of the first color is shared by the two pixels.

28. The apparatus of claim 27, wherein the control logic is further configured to, for each LED of the first color, provide a respective control signal based on two pieces of display data for displaying the two pixels that share the LED of the first color.

29. The apparatus of claim 24, wherein in each of the LED lamps, the first color is blue or red.

30. The apparatus of claim 24, wherein the LED lamps in each row of the array are staggered relative to the LED lamps in the adjacent row of the array by half of a width of an LED lamp.

31. A method, implemented on a machine having at least one processor, for subpixel rendering on a display, comprising:

receiving a plurality pieces of display data for displaying a plurality of pixels, each piece of display data comprising a first, a second, and a third components representing a first, a second, and a third colors, respectively; and

providing control signals for rendering an array of subpixel groups arranged in columns and rows on the display based on the plurality pieces of display data, wherein;

each of the subpixel groups forms a first pixel and a second pixel and consists of one subpixel of the first color, two subpixels of the second color, and two subpixels of the third color, the first pixel and the second pixel sharing the subpixel of the first color,

in each of the subpixel groups, a center of at least one of the two subpixels of the second color has an offset from a center of the subpixel of the first color along a column direction, and a center of at least one of the two subpixels of the third color has another offset from the center of the subpixel of the first color along an opposite direction of the column direction,

subpixel groups in each row of the array are repeated along the row direction,

subpixel groups in each row of the array are staggered relative to subpixels groups in an adjacent row of the array along the column direction,

each of the first pixel and the second pixel includes one of the two subpixels of the second color and one of the two subpixels of the third color, and

for each of the subpixel groups, each of the subpixels of three colors is staggered with each of the subpixels of a same color in a subpixel group in an adjacent row along the column direction, and each of the subpixels of the three colors is aligned with one of the subpixels of the same color in a subpixel group in an alternating row along the column direction.

32. The method of claim 31, wherein:

providing control signals comprises, for each subpixel of the first color, providing a respective control signal based on a first color component corresponding to a first piece of display data and a second color component corresponding to a second piece of display data for displaying the first pixel and the second pixel.

33. The method of claim 32, wherein a weight for each of the first color component and the second color component of display data equals ½

.

34. A non-transitory machine-readable medium having information recorded thereon for subpixel rendering on a display, wherein the information, when read by a machine, causes the machine to perform the following:

receiving a plurality pieces of display data for displaying a plurality of pixels, each piece of display data comprising a first, a second, and a third components representing a first, a second, and a third colors, respectively; and

providing control signals for rendering an array of subpixel groups arranged in columns and rows on the display based on the plurality pieces of display data, wherein;

each of the subpixel group consists of one subpixel of the first color, two subpixels of the second color, and two subpixels of the third color,

in each of the subpixel groups, a center of at least one of the two subpixels of the second color has an offset from a center of the subpixel of the first color along a column direction, and a center of at least one of the two subpixels of the third color has another offset from the center of the subpixel of the first color along an opposite direction of the column direction,

subpixel groups in each row of the array are repeated along the row direction,

subpixel groups in each row of the array are staggered relative to subpixels groups in an adjacent row of the array along the column direction,

for each of the subpixel groups, each of the subpixels of three colors is staggered with each of the subpixels of a same color in a subpixel group in an adjacent row along the column direction, and each of the subpixels of the three colors is aligned with one of the subpixels of the same color in a subpixel group in an alternating row along the column direction, and

each of the subpixel group is divided into two pixels such that each of the two pixels include one of the two subpixels of the second color and one of the two subpixels of the third color, and that the subpixel of the first color is shared by the two pixels.

35. The medium of claim 34, wherein providing control signals comprises, for each subpixel of the first color, providing a respective control signal based on color components of two pieces of display data for displaying the two pixels that share the subpixel of the first color.

36. The medium of claim 35, wherein providing a respective control signal comprises calculating a weighted average of the color components of the two pieces of display data.

37. The medium of claim 36, wherein a weight for each of the color components of the two pieces of display data equals ½

.