Pixel structure, display panel and display device

Abstract

The embodiments of the present application provide a pixel structure, a display panel, and a display device. The pixel structure includes a plurality of pixel groups, each of which includes one or more sub-pixel units, each of which is provided with a red sub-pixel, a green sub-pixel, and a blue sub-pixel arranged in the same preset direction, and in the preset direction, the green sub-pixel and the blue sub-pixel are respectively arranged on both sides of the red sub-pixel; wherein the light emission wavelength of the red sub-pixel is 617nm to 632nm, the light emission wavelength of the green sub-pixel is 516nm to 540nm, and the light emission wavelength of the blue sub-pixel is 453nm to 468nm. The pixel structure can be applied to an LED display device to improve the problem of different tones of the picture presented by the LED display device when the user views the LED display device from different sides, thereby improving the display quality of the LED display device.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a pixel structure, a display panel and a display device. Background Art

[0002] A light emitting diode (LED) is a semiconductor light emitting device configured to convert electric current into light, and has attracted attention in the fields of image displays and high-output electronic components due to its high thermal stability and wide bandgap characteristics.

[0003] However, in actual application scenarios, when the user views the LED display device from different sides (e.g., the left side, right side, top side, and bottom side), the color tone of the picture presented by the LED display device is often different. For example, the color tone of the picture seen by the user when he squints at the LED display device from the left side is different from the color tone of the picture seen when he squints at the LED display device from the right side, resulting in lower display quality of the LED display device and poor user experience. Summary of the invention

[0004] The embodiments of the present application provide a pixel structure, a display panel, and a display device. The pixel structure can be applied to an LED display device to improve the problem of different tones of the picture presented by the LED display device when the user views the LED display device from different sides, thereby improving the display quality of the LED display device.

[0005] In a first aspect, an embodiment of the present application provides a pixel structure, comprising a plurality of pixel groups, each of the pixel groups comprising one or more sub-pixel units, each of the sub-pixel units being provided with a red sub-pixel, a green sub-pixel and a blue sub-pixel arranged in the same preset direction, and in the preset direction, the green sub-pixel and the blue sub-pixel are respectively arranged on both sides of the red sub-pixel; wherein the light emission wavelength of the red sub-pixel is 617nm~632nm, the light emission wavelength of the green sub-pixel is 516nm~540nm, and the light emission wavelength of the blue sub-pixel is 453nm~468nm.

[0006] In some embodiments, each of the pixel groups includes a first sub-pixel unit, a second sub-pixel unit, a third sub-pixel unit, and a fourth sub-pixel unit;

[0007] Define that the first direction and the second direction are perpendicular to each other, the first sub-pixel unit and the second sub-pixel unit are arranged in sequence into a first row along the first direction, and the third sub-pixel unit and the fourth sub-pixel unit are arranged in sequence into a second row along the first direction, wherein the first sub-pixel unit and the third sub-pixel unit correspond to each other in the second direction, and the second sub-pixel unit and the fourth sub-pixel unit correspond to each other in the second direction.

[0008] In some embodiments, the first sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the first direction, and the second sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the first direction;

[0009] The third sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the first direction, and the fourth sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the first direction.

[0010] In some embodiments, the first sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the first direction, and the second sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the first direction;

[0011] The third sub-pixel unit is provided with green sub-pixels, red sub-pixels and blue sub-pixels arranged in sequence along the first direction, and the fourth sub-pixel unit is provided with green sub-pixels, red sub-pixels and blue sub-pixels arranged in sequence along the first direction.

[0012] In some embodiments, the angle between the third direction and the first direction is defined as 135 degrees, and the angle between the fourth direction and the first direction is defined as 45 degrees; (that is, the third direction and the fourth direction are symmetrically arranged relative to the second direction);

[0013] The first sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the third direction, and the third sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the third direction;

[0014] The second sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the fourth direction, and the fourth sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the fourth direction.

[0015] In some embodiments, the angle between the third direction and the first direction is defined as 135 degrees, and the angle between the fourth direction and the first direction is defined as 45 degrees;

[0016] The second sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the third direction, and the fourth sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the third direction;

[0017] The third sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the third direction, and the fourth sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the third direction.

[0018] In some embodiments, the first sub-pixel unit, the second sub-pixel unit, the third sub-pixel unit and the fourth sub-pixel unit are all square;

[0019] In the first sub-pixel unit, the second sub-pixel unit, the third sub-pixel unit and the fourth sub-pixel unit, the geometric center of the blue sub-pixel, the geometric center of the red sub-pixel and the geometric center of the green sub-pixel are all located on the diagonal of the square.

[0020] In a second aspect, an embodiment of the present application provides a display panel, comprising the pixel structure as described above.

[0021] In some embodiments, the display panel is an LED display panel.

[0022] In a third aspect, an embodiment of the present application provides a display device, comprising the display panel as described above.

[0023] In the pixel structure provided in the embodiment of the present application, red sub-pixels, green sub-pixels and blue sub-pixels are arranged in each sub-pixel unit. Since the far-field energy distribution of red light is quite different from that of blue light and green light, and the far-field energy distribution of blue light is similar to that of green light, the embodiment of the present application arranges green sub-pixels and blue sub-pixels on both sides of the red sub-pixel respectively, so that the hue of the picture seen by the user from the side where the green sub-pixel is located is relatively consistent with the hue of the picture seen from the side where the blue sub-pixel is located. When the pixel structure is applied to an LED display device, it can improve the problem of different hues of the picture presented by the LED display device when the user views the LED display device from different sides, thereby improving the display quality of the LED display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0025] Figure 1 A first structural schematic diagram of a pixel structure provided in an embodiment of the present application.

[0026] Figure 2A second structural schematic diagram of the pixel structure provided in an embodiment of the present application.

[0027] Figure 3 A third structural schematic diagram of the pixel structure provided in an embodiment of the present application.

[0028] Figure 4 A fourth structural schematic diagram of the pixel structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0030] See also Figures 1 to 4 The embodiment of the present application provides a pixel structure, including multiple pixel groups 100, each pixel group 100 includes one or more sub-pixel units, each sub-pixel unit is provided with a red sub-pixel 20, a green sub-pixel 10 and a blue sub-pixel 30 arranged in the same preset direction, and, in the preset direction, the green sub-pixel 10 and the blue sub-pixel 30 are respectively arranged on both sides of the red sub-pixel 20; wherein the light emission wavelength of the red sub-pixel 20 is 617nm~632nm, the light emission wavelength of the green sub-pixel 10 is 516nm~540nm, and the light emission wavelength of the blue sub-pixel 30 is 453nm~468nm.

[0031] By way of example, a plurality of pixel groups 100 may be arranged in an array.

[0032] In the embodiments of the present application, a plurality may refer to two or more than two, for example, three, four, five, six, seven, eight, nine, ten, etc.

[0033] Exemplarily, the peak wavelength of the light emitted by the red sub-pixel 20 is 628 nm, the peak wavelength of the light emitted by the green sub-pixel 10 is 529 nm, and the peak wavelength of the light emitted by the blue sub-pixel 30 is 462 nm.

[0034] Please combine Figures 1 to 4, each pixel group 100 includes a first sub-pixel unit 110, a second sub-pixel unit 120, a third sub-pixel unit 130 and a fourth sub-pixel unit 140; it is defined that the first direction X and the second direction Y are perpendicular to each other, the first sub-pixel unit 110 and the second sub-pixel unit 120 are arranged in sequence into a first row along the first direction X, and the third sub-pixel unit 130 and the fourth sub-pixel unit 140 are arranged in sequence into a second row along the first direction X, wherein the first sub-pixel unit 110 and the third sub-pixel unit 130 correspond to each other in the second direction Y, and the second sub-pixel unit 120 and the fourth sub-pixel unit 140 correspond to each other in the second direction Y.

[0035] Please combine Figure 1 , the first sub-pixel unit 110 is provided with a green sub-pixel 10, a red sub-pixel 20 and a blue sub-pixel 30 sequentially arranged along the first direction X, and the second sub-pixel unit 120 is provided with a green sub-pixel 10, a red sub-pixel 20 and a blue sub-pixel 30 sequentially arranged along the first direction X;

[0036] The third sub-pixel unit 130 includes a blue sub-pixel 30 , a red sub-pixel 20 and a green sub-pixel 10 sequentially arranged along the first direction X. The fourth sub-pixel unit 140 includes a blue sub-pixel 30 , a red sub-pixel 20 and a green sub-pixel 10 sequentially arranged along the first direction X.

[0037] from Figure 1 It can be seen that when the user views from the left side of the pixel group 100, the blue sub-pixel 30 and the green sub-pixel 10 are closest to the user's eyes, and when the user views from the right side of the pixel group 100, the blue sub-pixel 30 and the green sub-pixel 10 are also seen. In other words, when the user views the display screen using this pixel structure from the left and right sides of the pixel group 100, the color tone of the screen seen is consistent.

[0038] Please combine Figure 2 , the first sub-pixel unit 110 is provided with a blue sub-pixel 30, a red sub-pixel 20 and a green sub-pixel 10 arranged in sequence along the first direction X, and the second sub-pixel unit 120 is provided with a blue sub-pixel 30, a red sub-pixel 20 and a green sub-pixel 10 arranged in sequence along the first direction X;

[0039] The third sub-pixel unit 130 includes a green sub-pixel 10, a red sub-pixel 20 and a blue sub-pixel 30 sequentially arranged along the first direction X. The fourth sub-pixel unit 140 includes a green sub-pixel 10, a red sub-pixel 20 and a blue sub-pixel 30 sequentially arranged along the first direction X.

[0040] from Figure 2It can be seen that when the user views from the left side of the pixel group 100, the green sub-pixel 10 and the blue sub-pixel 30 are closest to the user's eyes, and when the user views from the right side of the pixel group 100, the green sub-pixel 10 and the blue sub-pixel 30 are also seen. In other words, when the user views the display screen using this pixel structure from the left and right sides of the pixel group 100, the color tone of the screen seen is consistent.

[0041] Please combine Figure 3 , the angle between the third direction M and the first direction X is defined as 135 degrees, and the angle between the fourth direction N and the first direction X is defined as 45 degrees; (that is, the third direction M and the fourth direction N are symmetrically arranged relative to the second direction Y);

[0042] The first sub-pixel unit 110 is provided with a green sub-pixel 10, a red sub-pixel 20 and a blue sub-pixel 30 sequentially arranged along a third direction M, and the third sub-pixel unit 130 is provided with a blue sub-pixel 30, a red sub-pixel 20 and a green sub-pixel 10 sequentially arranged along the third direction M;

[0043] The second sub-pixel unit 120 is provided with a blue sub-pixel 30, a red sub-pixel 20 and a green sub-pixel 10 arranged in sequence along the fourth direction N. The fourth sub-pixel unit 140 is provided with a green sub-pixel 10, a red sub-pixel 20 and a blue sub-pixel 30 arranged in sequence along the fourth direction N.

[0044] from Figure 3 It can be seen that when the user views from the top of the pixel group 100, the green sub-pixel 10 and the blue sub-pixel 30 are closest to the user's eyes, when the user views from the bottom of the pixel group 100, the green sub-pixel 10 and the blue sub-pixel 30 are closest to the user's eyes, when the user views from the left side of the pixel group 100, the green sub-pixel 10 and the blue sub-pixel 30 are closest to the user's eyes, and when the user views from the right side of the pixel group 100, the green sub-pixel 10 and the blue sub-pixel 30 are also seen. In other words, when the user views the display screen using this pixel structure from the top, bottom, left and right sides of the pixel group 100, the color tone of the screen seen is consistent.

[0045] like Figure 3As shown, the dotted frame 50 is a square, and the side length of the square is the length of the line connecting the geometric centers of the red sub-pixels 20 in two adjacent sub-pixel units. It can be seen that when the geometric center of the dotted frame 50 is the geometric center of the pixel group 100, the dotted frame 50 just includes the area of ​​a green sub-pixel 10, the area of ​​a red sub-pixel 20, and the area of ​​a blue sub-pixel 30, and when the dotted frame 50 moves to any other position in the pixel group 100, the dotted frame 50 will just include the area of ​​a green sub-pixel 10, the area of ​​a red sub-pixel 20, and the area of ​​a blue sub-pixel 30, thereby achieving uniform distribution of sub-pixels in the pixel group 100. When the pixel group 100 is applied to an LED display panel, it can avoid the phenomenon that dark areas are formed in some areas due to uneven distribution of sub-pixels, thereby causing a grainy feeling in the displayed image, thereby improving the display quality of the LED display panel.

[0046] Please combine Figure 4 , define the angle between the third direction M and the first direction X as 135 degrees, and define the angle between the fourth direction N and the first direction X as 45 degrees;

[0047] The first sub-pixel unit 110 is provided with a blue sub-pixel 30, a red sub-pixel 20 and a green sub-pixel 10 sequentially arranged along a third direction M, and the third sub-pixel unit 130 is provided with a green sub-pixel 10, a red sub-pixel 20 and a blue sub-pixel 30 sequentially arranged along the third direction M;

[0048] The second sub-pixel unit 120 is provided with a green sub-pixel 10, a red sub-pixel 20 and a blue sub-pixel 30 arranged in sequence along the fourth direction N. The fourth sub-pixel unit 140 is provided with a blue sub-pixel 30, a red sub-pixel 20 and a green sub-pixel 10 arranged in sequence along the fourth direction N.

[0049] from Figure 4 It can be seen that when the user views from the top of the pixel group 100, the blue sub-pixel 30 and the green sub-pixel 10 are closest to the user's eyes, when the user views from the bottom of the pixel group 100, the blue sub-pixel 30 and the green sub-pixel 10 are closest to the user's eyes, when the user views from the left side of the pixel group 100, the blue sub-pixel 30 and the green sub-pixel 10 are closest to the user's eyes, and when the user views from the right side of the pixel group 100, the blue sub-pixel 30 and the green sub-pixel 10 are also seen. In other words, when the user views the display screen using this pixel structure from the top, bottom, left and right sides of the pixel group 100, the color tone of the screen seen is consistent.

[0050] like Figure 4As shown, the dotted frame 50 is a square, and the side length of the square is the length of the line connecting the geometric centers of the red sub-pixels 20 in two adjacent sub-pixel units. It can be seen that when the geometric center of the dotted frame 50 is the geometric center of the pixel group 100, the dotted frame 50 just includes the area of ​​a green sub-pixel 10, the area of ​​a red sub-pixel 20, and the area of ​​a blue sub-pixel 30, and when the dotted frame 50 moves to any other position in the pixel group 100, the dotted frame 50 will just include the area of ​​a green sub-pixel 10, the area of ​​a red sub-pixel 20, and the area of ​​a blue sub-pixel 30, thereby achieving uniform distribution of sub-pixels in the pixel group 100. When the pixel group 100 is applied to an LED display panel, it can avoid the phenomenon that dark areas are formed in some areas due to uneven distribution of sub-pixels, thereby causing a grainy feeling in the displayed image, thereby improving the display quality of the LED display panel.

[0051] Please combine Figures 1 to 4 , the first sub-pixel unit 110 , the second sub-pixel unit 120 , the third sub-pixel unit 130 and the fourth sub-pixel unit 140 are all square.

[0052] Please combine Figure 3 and Figure 4 In the first sub-pixel unit 110, the second sub-pixel unit 120, the third sub-pixel unit 130 and the fourth sub-pixel unit 140, the geometric center of the blue sub-pixel 30, the geometric center of the red sub-pixel 20 and the geometric center of the green sub-pixel 10 may all be located on the diagonal of the square.

[0053] Please combine Figures 1 to 4 , the geometric centers of the first sub-pixel unit 110 , the second sub-pixel unit 120 , the third sub-pixel unit 130 , and the fourth sub-pixel unit 140 may all overlap with the geometric center of the red sub-pixel 20 .

[0054] In summary, in the pixel structure provided in the embodiment of the present application, a red sub-pixel 20, a green sub-pixel 10 and a blue sub-pixel 30 are arranged in each sub-pixel unit. Since the far-field energy distribution of red light is quite different from the far-field energy distribution (far field diffraction pattern, FFDP) of blue light and green light, and the far-field energy distribution of blue light is similar to the far-field energy distribution of green light, the embodiment of the present application arranges the green sub-pixel 10 and the blue sub-pixel 30 on both sides of the red sub-pixel 20 respectively, so that the hue of the picture seen by the user from the side where the green sub-pixel 10 is located is relatively consistent with the hue of the picture seen from the side where the blue sub-pixel 30 is located. When the pixel structure is applied to an LED display device, it can improve the problem of different hues of the picture presented by the LED display device when the user views the LED display device from different sides, thereby improving the display quality of the LED display device.

[0055] In the related art, each sub-pixel unit of the pixel structure is usually arranged in sequence of red sub-pixels, green sub-pixels, and blue sub-pixels. In this way, when the user views from the left side of the pixel group, the red sub-pixel is closest to the user's eyes, and when the user views from the right side of the pixel group, the blue sub-pixel is closest to the user's eyes. Since the far-field energy distribution of red light is significantly different from that of blue light, when the user views the display screen using the pixel structure from the left and right sides of the pixel group, the tones of the screen seen are different. As a result, when the pixel structure is applied to an LED display device, when the user views from different sides of the LED display device, the tones of the screen presented by the LED display device are significantly different, resulting in poor display quality of the LED display device.

[0056] An embodiment of the present application further provides a display panel, comprising the pixel structure in any of the above embodiments.

[0057] Exemplarily, the display panel may be an LED display panel. It is understood that when the display panel is an LED display panel, the red sub-pixel 20 is a red LED device, the green sub-pixel 10 is a green LED device, and the blue sub-pixel 30 is a blue LED device. The light-emitting layer material in the blue LED device and the light-emitting layer material in the green LED device may each include one or both of GaN (gallium nitride) and InGaN (indium gallium nitride).

[0058] An embodiment of the present application further provides a display device, comprising the display panel in any of the above embodiments.

[0059] Exemplarily, the display device can be a television, a computer monitor, an advertising display screen, a mobile phone, a tablet computer and other devices, and can also be a gaming device, an augmented reality (AR) device, a virtual reality (VR) device, a data storage device, an audio playback device, a video playback device, a wearable device and other devices with a display screen, wherein the wearable device can be a smart bracelet, smart glasses, a smart watch, smart decoration, etc.

[0060] The pixel structure, display panel and display device provided in the embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A pixel structure, characterized in that: The invention comprises a plurality of pixel groups, each of which comprises one or more sub-pixel units, each of which comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel arranged in the same preset direction, and in the preset direction, the green sub-pixel and the blue sub-pixel are respectively arranged on both sides of the red sub-pixel; wherein the light emission wavelength of the red sub-pixel is 617nm to 632nm, the light emission wavelength of the green sub-pixel is 516nm to 540nm, and the light emission wavelength of the blue sub-pixel is 453nm to 468nm; Each of the pixel groups includes a first sub-pixel unit, a second sub-pixel unit, a third sub-pixel unit and a fourth sub-pixel unit; It is defined that the first direction and the second direction are perpendicular to each other, the first sub-pixel unit and the second sub-pixel unit are sequentially arranged into a first row along the first direction, and the third sub-pixel unit and the fourth sub-pixel unit are sequentially arranged into a second row along the first direction, wherein the first sub-pixel unit and the third sub-pixel unit correspond to each other in the second direction, and the second sub-pixel unit and the fourth sub-pixel unit correspond to each other in the second direction; The first sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the first direction, and the second sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the first direction; The third sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the first direction, and the fourth sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the first direction; or, The first sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the first direction, and the second sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the first direction; The third sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the first direction, and the fourth sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the first direction; or, The angle between the third direction and the first direction is defined as 135 degrees, and the angle between the fourth direction and the first direction is defined as 45 degrees; The first sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the third direction, and the third sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the third direction; The second sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the fourth direction, and the fourth sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the fourth direction; or, The angle between the third direction and the first direction is defined as 135 degrees, and the angle between the fourth direction and the first direction is defined as 45 degrees; The first sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the third direction, and the third sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the third direction; The second sub-pixel unit is provided with a green sub-pixel, a red sub-pixel and a blue sub-pixel arranged in sequence along the fourth direction, and the fourth sub-pixel unit is provided with a blue sub-pixel, a red sub-pixel and a green sub-pixel arranged in sequence along the fourth direction N.

2. A display panel, characterized in that: Comprising the pixel structure as claimed in claim 1.

3. The display panel according to claim 2, characterized in that: The display panel is an LED display panel.

4. A display device, characterized in that: Comprising a display panel as claimed in claim 2 or 3.

Images