Display panel and display device

Abstract

The application discloses a display panel and a display device, and relates to the display field.The display panel comprises a plurality of pixel openings, the plurality of pixel openings comprising: a first column of pixel openings and a second column of pixel openings arranged along a first direction, the first column of pixel openings comprising a first pixel opening and a second pixel opening periodically arranged along a second direction, and the second column of pixel openings comprising an i-th third pixel opening, an i+1-th third pixel opening and an i+2-th third pixel opening arranged along the second direction, wherein i is an integer greater than or equal to 1; in the second direction, a spacing between the i-th third pixel opening and the i+1-th third pixel opening is d1, a spacing between the i+1-th third pixel opening and the i+2-th third pixel opening is d2, and d1 is not equal to d2; in the second direction, a spacing between adjacent first pixel openings and second pixel openings is d3; d1 is greater than or equal to d3, and d2 is greater than or equal to d3, so that the display quality is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] OLED display panels are displays made using organic light-emitting diodes (OLEDs). They possess characteristics such as self-illumination, high contrast, wide viewing angle, fast response, and low power consumption. Furthermore, they do not require a backlight; each pixel emits light independently, enabling them to provide more realistic blacks and richer colors. As a result, OLED display panels are becoming increasingly widely used in various display devices. Therefore, optimizing the display quality of OLED display panels has become a research hotspot for those skilled in the art. Summary of the Invention

[0003] In view of the above problems, this application provides a display panel and display device to improve display quality.

[0004] The specific plan is as follows:

[0005] A display panel, comprising:

[0006] Array substrate;

[0007] A pixel definition layer located on one side of the array substrate, the pixel definition layer including a plurality of pixel openings;

[0008] The light-emitting functional layer is located within the pixel opening;

[0009] The plurality of pixel openings include:

[0010] The first column of pixel openings and the second column of pixel openings are arranged along a first direction. The first column of pixel openings includes first pixel openings and second pixel openings arranged periodically along a second direction. The second column of pixel openings includes the i-th third pixel opening, the (i+1)-th third pixel opening, and the (i+2)-th third pixel opening arranged along the second direction, where i is an integer not less than 1. In the second direction, the distance between the i-th third pixel opening and the (i+1)-th third pixel opening is d1, and the distance between the (i+1)-th third pixel opening and the (i+2)-th third pixel opening is d2, where d1 ≠ d2, and i is any positive integer not greater than N-2, where N is an integer greater than 4. In the second direction, the distance between adjacent first pixel openings and second pixel openings is d3.

[0011] Wherein, a first light-emitting functional layer is provided in the first pixel opening, a second light-emitting functional layer is provided in the second pixel opening, and a third light-emitting functional layer is provided in the third pixel opening; d1≥d3, and d2≥d3.

[0012] A display device includes the aforementioned display panel.

[0013] In the display panel and display device provided in this application embodiment, a first light-emitting functional layer is disposed in the first pixel opening, a second light-emitting functional layer is disposed in the second pixel opening, and a third light-emitting functional layer is disposed in the third pixel opening. In the second direction, the distance between the i-th third pixel opening and the (i+1)-th third pixel opening is d1, and the distance between the (i+1)-th third pixel opening and the (i+2)-th third pixel opening is d2, where d1≠d2. This allows the i-th third light-emitting functional layer and the (i+1)-th third pixel opening to share one opening of the mask during the formation of the third light-emitting functional layer, thereby improving the light-emitting efficiency of the i-th third light-emitting functional layer and the (i+2)-th third pixel opening. The aperture ratio of the +1 third light-emitting functional layer, or the i+1th and i+2th third light-emitting functional layers can share an opening in the mask, thereby increasing the aperture ratio of the i+1th and i+2th third light-emitting functional layers, thus increasing the display brightness of the third light-emitting functional layers in the display panel and improving the display quality of the display panel. That is, by using two adjacent third light-emitting functional layers with a small spacing in the second direction to share an opening in the mask, the aperture ratio of the third light-emitting functional layers in the display panel is increased, thereby increasing the display brightness of the third light-emitting functional layers in the display panel under the same driving signal, and ultimately improving the display quality of the display panel.

[0014] Furthermore, in the display panel and display device provided in this application embodiment, in the second direction, the distance between adjacent first pixel openings and second pixel openings is d3, d1≥d3 and d2≥d3, so that by increasing the distance between two adjacent third pixel openings with a small distance, a light modulation layer can be set above the gap between any two adjacent third pixel openings in the second direction, thereby alleviating the phenomenon of deteriorated display quality caused by the small size of the gap between some adjacent third pixel openings, which makes it impossible to set a light modulation layer, and improving the display quality of the display panel. Attached Figure Description

[0015] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0016] Figure 1 A cross-sectional view of a display panel provided in this application;

[0017] Figure 2 A partial schematic diagram of the pixel opening arrangement in a display panel provided in this application;

[0018] Figure 3 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0019] Figure 4 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0020] Figure 5 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0021] Figure 6 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0022] Figure 7 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0023] Figure 8 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0024] Figure 9 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0025] Figure 10 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0026] Figure 11 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0027] Figure 12 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0028] Figure 13 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0029] Figure 14 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0030] Figure 15 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0031] Figure 16 A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0032] Figure 17A partial schematic diagram of the pixel aperture arrangement in another display panel provided in this application;

[0033] Figure 18 for Figure 17 The diagram shows a cross-sectional view of the display panel along FF'.

[0034] Figure 19 for Figure 17 The diagram shows a cross-sectional view of the display panel along MM'.

[0035] Figure 20 for Figure 17 The diagram shows a cross-sectional view of the display panel along NN'.

[0036] Figure 21 for Figure 17 The shown panel is another cross-sectional view along NN';

[0037] Figure 22 for Figure 17 The shown panel is another cross-sectional view along NN';

[0038] Figure 23 This is a schematic diagram of a display device provided in this application.

[0039] Figure label:

[0040] 10 - Pixel definition layer; 101 - First pixel opening; 102 - Second pixel opening; 103 - Third pixel opening; 1031 - i-th third pixel opening; 1032 - (i+1)-th third pixel opening; 1033 - (i+2)-th third pixel opening; 20 - Array substrate; 201 - Pixel circuit; 21 - Planarization layer; 30 - Light-emitting functional layer; 31 - Anode layer; 32 - Cathode layer; 33 - Pixel; 40 - Thin film encapsulation layer; 50 - Protective cover plate; 6 0 - Light modulation structure; 61 - First light modulation section; 611 - First sub-light modulation section; 612 - Second sub-light modulation section; 613 - Third sub-light modulation section; 62 - Second light modulation section; 63 - Light modulation layer; 64 - Color resist unit; 65 - Light shielding layer; 70 - Polarizer; 80 - Touch layer; 81 - First touch layer; 82 - Second touch layer; 001 - Display area; 002 - Bezel area; 100 - Display panel; 200 - Display device. Detailed Implementation

[0041] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0043] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] As shown in the background section, optimizing the display quality of OLED display panels has become a research hotspot for those skilled in the art.

[0045] In view of this, embodiments of this application provide a display panel, such as Figure 1 As shown, the display panel 100 includes:

[0046] Array substrate 20;

[0047] A pixel definition layer 10 is located on one side of the array substrate 20, and the pixel definition layer 10 includes a plurality of pixel openings;

[0048] The light-emitting functional layer 30 is located within the pixel opening, and this light-emitting functional layer is an OLED (Organic Light-Emitting Diode).

[0049] Among them, such as Figure 2 As shown, Figure 1 for Figure 2 A cross-sectional view along the EE' direction shows that the display panel includes a display area 001 and a border area 002 surrounding the display area 001. Multiple pixel openings are located in the display area 001, and these multiple pixel openings include:

[0050] The first column of pixel openings and the second column of pixel openings are arranged along a first direction X. The first column of pixel openings includes a first pixel opening 101 and a second pixel opening 102 arranged periodically along a second direction Y. The second column of pixel openings includes an i-th third pixel opening 103, an (i+1)-th third pixel opening 103, and an (i+2)-th third pixel opening 103 arranged along the second direction Y, where i is an integer not less than 1. A first light-emitting functional layer is disposed within the first pixel opening 101, a second light-emitting functional layer is disposed within the second pixel opening 102, and a third light-emitting functional layer is disposed within the third pixel opening 103. For ease of illustration, different pixel openings correspond to different light-emitting functional layers. Figure 2Different colors are used to indicate the first pixel opening 101, the second pixel opening 102, and the third pixel opening 103, but in actual production, multiple pixel openings can be formed simultaneously.

[0051] Optionally, in one embodiment of this application, the following continues... Figure 1 As shown, the display panel 100 further includes: an anode layer 31 located on the side of the light-emitting functional layer 30 facing the array substrate 20, and a cathode layer 32 located on the side of the light-emitting functional layer 30 away from the array substrate 20; a pixel circuit 201 is disposed in the array substrate 20, and one pixel circuit 201 corresponds to one light-emitting functional layer 30, used to control the voltage on the anode layer 31 corresponding to the light-emitting functional layer 30, thereby controlling the voltage difference between the anode layer 31 and the cathode layer 32 corresponding to the light-emitting functional layer 30, and realizing the control of the display panel display. One light-emitting functional layer 30 and its corresponding pixel circuit 201, anode layer 31 and cathode layer 32 constitute one pixel 33, and one pixel 33 corresponds to one pixel opening.

[0052] Optionally, different light-emitting functional layers in the display panel can share the same cathode layer to simplify the manufacturing process of the cathode layer, but this application does not limit this and it depends on the specific circumstances.

[0053] It should be noted that, in this embodiment, the following continues... Figure 2 As shown, in the second direction Y, the distance between the i-th third pixel opening 103 and the (i+1)-th third pixel opening 103 is d1, and the distance between the (i+1)-th third pixel opening 103 and the (i+2)-th third pixel opening 103 is d2, where d1 ≠ d2, i is any positive integer not greater than N-2, and N is an integer greater than 4. This is to ensure that during the formation of the third light-emitting functional layer, the i-th and (i+1)-th third light-emitting functional layers can share one opening of the mask, thereby increasing the aperture ratio of the i-th and (i+1)-th third light-emitting functional layers. One third light-emitting functional layer and the (i+2)th third light-emitting functional layer can share an opening in the mask, increasing the aperture ratio of the (i+1)th and (i+2)th third light-emitting functional layers. This improves the display brightness of the third light-emitting functional layers in the display panel and enhances the display quality. Specifically, by utilizing two adjacent third light-emitting functional layers with a small spacing in the second direction Y to share an opening in the mask, the aperture ratio of the third light-emitting functional layers in the display panel is increased. Consequently, under the same driving signal, the display brightness of the third light-emitting functional layers in the display panel is improved, ultimately enhancing the display quality of the display panel.

[0054] It should be noted that if the distance between two adjacent third pixel openings 103 in the second direction Y is too small, when a light modulation layer is added to the side of the pixel definition layer 10 away from the array substrate 20 in the display panel, the light modulation layer can only be set above the gap of other adjacent pixel openings, and cannot be set above the gap of the two adjacent third pixel openings 103 with a small distance. This may result in display defects such as color shift or dispersion, affecting the display quality.

[0055] In this embodiment, in the second direction Y, the distance between adjacent first pixel openings 101 and second pixel openings 102 is d3, d1≥d3 and d2≥d3. By increasing the distance between two adjacent third pixel openings 103 with a small distance, a light modulation layer can be set above the gap between any two adjacent third pixel openings 103 in the second direction Y. This alleviates the phenomenon of deteriorated display quality caused by the small size of the gap between some adjacent third pixel openings 103, which makes it impossible to set a light modulation layer, and improves the display quality of the display panel.

[0056] Since the luminous efficiency of blue pixels is lower than that of red pixels and green pixels, therefore, in an optional embodiment of this application, such as Figure 3 As shown, a red light-emitting functional layer R is provided in the first pixel opening 101, a green light-emitting functional layer G is provided in the second pixel opening 102, and a blue light-emitting functional layer B is provided in the third pixel opening 103, so as to balance the light emission brightness of the red light-emitting functional layer R, the green light-emitting functional layer G and the blue light-emitting functional layer B under the same driving signal. However, this application does not limit this, and it depends on the specific situation.

[0057] The following description uses an example of a display panel provided in the embodiments of this application, in which a red light-emitting functional layer R is provided in the first pixel opening 101, a green light-emitting functional layer G is provided in the second pixel opening 102, and a blue light-emitting functional layer B is provided in the third pixel opening 103.

[0058] It should be noted that in this embodiment, d1 can be less than d2 or greater than d2. This application does not limit this, and it depends on the specific situation. For ease of description, the display panel provided in the embodiment of this application will be described below with d1 < d2 as an example.

[0059] like Figure 4As shown, in this embodiment, in the second direction Y, the distance between the 2k+1th third pixel opening 103 and the 2k+2th third pixel opening 103 is d1, where k is any integer not less than 0; in the second direction Y, the distance between the 2j+2th third pixel opening 103 and the 2j+3th third pixel opening 103 is d2, where j is any integer not less than 0, so that the arrangement of the third pixel openings 103 provided in this embodiment extends to the entire display area of ​​the display panel, thereby further improving the display quality of the display panel.

[0060] In other embodiments of this application, such as Figure 5 As shown, in the second Y direction, the distance between the (2k+1)th third pixel opening 103 and the (2k+2)th third pixel opening 103 can be d2, where k is any integer not less than 0; and in the second Y direction, the distance between the (2j+2)th third pixel opening 103 and the (2j+3)th third pixel opening 103 can be d1, where j is any integer not less than 0. This extends the arrangement of the third pixel openings 103 provided in this embodiment to the entire display area of ​​the display panel, thereby further improving the display quality of the display panel. This application does not limit this arrangement; it depends on the specific circumstances.

[0061] In this embodiment, the display panel includes a plurality of repeating units arranged in an array. Each repeating unit 104 involves four columns of pixel openings in the first direction X, specifically two columns of first-column pixel openings and two columns of second-column pixel openings, and four adjacent rows of pixel openings in the second direction Y, continuing as follows... Figure 4 As shown, the repeating unit 104 includes four first pixel openings 101, four second pixel openings 102, and four third pixel openings 103. Two first pixel openings 101 and two second pixel openings 102 are located in the first column and are arranged intersectingly in the second direction Y. The other two first pixel openings 101 and two second pixel openings 102 are located in the third column and are arranged intersectingly in the second direction Y. The two third pixel openings 103 are located in the second column, and the distance between the two third pixel openings 103 is d1. The other two third pixel openings 103 are located in the fourth column, and the distance between the two third pixel openings 103 is d2.

[0062] Optionally, in one embodiment of this application, such as Figure 6 As shown, the i-th third pixel opening 103 and the r-th first pixel opening 101 are in the same row, the (i+1)-th third pixel opening 103 and the t-th second pixel opening 102 are in the same row, and the r-th first pixel opening 101 and the t-th second pixel opening 102 are in adjacent rows, where r is an integer not less than 1 and t is an integer not less than 1.

[0063] Based on the above embodiments, in one embodiment of this application, the following continues... Figure 6 As shown, d1 = d3, meaning the distance between the i-th third pixel opening 103 and the (i+1)-th third pixel opening 103 is the same as the distance between the r-th first pixel opening 101 and the t-th second pixel opening 102. By increasing the distance between two adjacent third pixel openings 103 with small distances to be the same as the distance between adjacent first pixel openings 101 and second pixel openings 102 in the second direction Y, a light modulation layer can be set above any gap between two adjacent third pixel openings 103 in the second direction Y. This alleviates the phenomenon of deteriorated display quality caused by the small size of the gap between some adjacent third pixel openings 103, which makes it impossible to set a light modulation layer, and improves the display quality of the display panel.

[0064] It should be noted that, in the above embodiments, the following continues... Figure 6 As shown, in the second direction Y, the i-th third pixel opening 103 has a first position A toward the boundary of the (i+1)-th third pixel opening 103, and the r-th first pixel opening 101 has a second position B toward the boundary of the t-th second pixel opening 102; in the second direction Y, the (i+1)-th third pixel opening 103 has a third position C toward the boundary of the i-th third pixel opening 103, and the t-th second pixel opening 102 has a fourth position D toward the boundary of the r-th first pixel opening 101.

[0065] Optionally, in one embodiment of this application, in the second direction Y, the first position A and the second position B are the same, and the third position C and the fourth position D are the same, so that the boundary of the i-th third pixel opening 103 toward the (i+1)-th third pixel opening 103 is aligned with the boundary of the r-th first pixel opening 101 toward the t-th second pixel opening 102 in the second direction Y, and the boundary of the (i+1)-th third pixel opening 103 toward the i-th third pixel opening 103 and the boundary of the t-th second pixel opening 102 toward the r-th first pixel opening 101 are aligned with the second direction Y, that is, the lower edge of the i-th third pixel opening 103 is aligned with the lower edge of the r-th first pixel opening 101, and the upper edge of the (i+1)-th third pixel opening 103 is aligned with the upper edge of the t-th second pixel opening 102.

[0066] In another embodiment of this application, such as Figure 7 and Figure 8As shown, in the second direction Y, the first position A and the second position B are different, and the third position C and the fourth position D are different, so that the boundary of the i-th third pixel opening 103 toward the (i+1)-th third pixel opening 103 is not aligned with the boundary of the r-th first pixel opening 101 toward the t-th second pixel opening 102 in the second direction Y, and the boundary of the (i+1)-th third pixel opening 103 toward the i-th third pixel opening 103 and the boundary of the t-th second pixel opening 102 toward the r-th first pixel opening 101 are not aligned with the boundary of the r-th third pixel opening 103 in the second direction Y. That is, the lower edge of the i-th third pixel opening 103 is not aligned with the lower edge of the r-th first pixel opening 101, and the upper edge of the (i+1)-th third pixel opening 103 is not aligned with the upper edge of the t-th second pixel opening 102.

[0067] Optionally, based on the above embodiments, in one embodiment of this application, such as Figure 7 As shown, in the second direction Y, the first position A is located on the side of the second position B facing the fourth position D, and the third position C is located on the side of the fourth position D away from the second position B; in another embodiment of this application, as Figure 8 As shown, in the second direction Y, the first position A is located on the side of the second position B away from the fourth position D, and the third position C is located on the side of the fourth position D facing the second position B.

[0068] Continue as Figure 8 As shown in the embodiments of this application, the display panel includes multiple pixel unit regions. Each pixel unit region includes a first pixel opening 101, a second pixel opening 102, and a third pixel opening 103. Optionally, in one embodiment of this application, the (t-1)th second pixel opening 102, the rth first pixel opening 101, and the ith third pixel opening 103 form the first pixel unit region 11, and the tth second pixel opening 102, the r+1th first pixel opening 101, and the i+1th third pixel opening 103 form the second pixel unit region 12. It should be noted that in this embodiment, the first position A is located on the side of the fourth position D facing the second position B, that is, in the second direction Y, the lower edge of the i-th third pixel opening 103 will not exceed the upper edge of the t-th second pixel opening 102, and the third position C is located on the side of the second position B facing the fourth position D, that is, in the second direction Y, the upper edge of the (i+1)-th third pixel opening 103 will not exceed the lower edge of the r-th first pixel opening 101, so that the display effects of the display areas corresponding to the first pixel unit area 11 and the second pixel unit area 12 can be independent of each other, reducing the mutual influence between the display content corresponding to the first pixel unit area 11 and the second pixel unit area 12.

[0069] It should be noted that, assuming d1 = d3, compared to the second direction Y where the first position A and the second position B are different, and the third position C and the fourth position D are different, in the second direction Y where the first position A and the second position B are the same, and the third position C and the fourth position D are the same, this has a better effect on improving the display quality of the display panel. That is, compared to using pixels in the display panel... Figure 7 and Figure 8 The arrangement of the display panel adopts... Figure 6 This arrangement method is more effective in improving the display quality of the display panel.

[0070] In another embodiment of this application, d1 > d3, that is, the distance between the i-th third pixel opening 103 and the (i+1)-th third pixel opening 103 is greater than the distance between the r-th first pixel opening 101 and the t-th second pixel opening 102. By increasing the distance between two adjacent third pixel openings 103 with a small distance to be greater than the distance between adjacent first pixel openings 101 and second pixel openings 102 in the second direction Y, a light modulation layer can be set above any gap between two adjacent third pixel openings 103 in the second direction Y. This alleviates the phenomenon of deteriorated display quality caused by the small size of the gap between some adjacent third pixel openings 103, which makes it impossible to set a light modulation layer, and improves the display quality of the display panel.

[0071] Furthermore, d1 > d3, meaning the distance between the i-th third pixel opening 103 and the (i+1)-th third pixel opening 103 is greater than the distance between the r-th first pixel opening 101 and the t-th second pixel opening 102. Without changing the evaporation opening size of the mask used to fabricate the third pixel opening 103, the aspect ratio of the third pixel opening 103 can be reduced. Figure 9 The aspect ratio of the third pixel opening 103 shown is less than 1 / 2. Figures 6-8 The aspect ratio of the third pixel opening 103 is improved, thereby alleviating display defects such as color shift or dispersion caused by the difference in length and width of the third light-emitting functional layer, and improving the display quality of the display panel.

[0072] Optionally, in the above embodiments, such as Figures 10-12 As shown, in the second direction Y, the first position A is located on the side of the fourth position D facing the second position B, and the third position C is located on the side of the second position B facing the fourth position D. This allows the display effects of the display areas corresponding to the first pixel unit region 11 and the second pixel unit region 12 to be independent of each other, reducing the mutual influence between the display content corresponding to the first pixel unit region 11 and the second pixel unit region 12. However, this application does not limit this, as long as the first position A is not located on the side of the fourth position D away from the second position B, and the third position C is not located on the side of the second position B away from the fourth position D.

[0073] Optionally, in one embodiment of this application, such as Figure 10 As shown, the first position A and the second position B are the same, and the third position is located on the side of the fourth position D away from the second position B. By reducing the length of the (i+1)th third pixel opening 103 in the second direction Y, the distance between the i-th third pixel opening 103 and the (i+1)th third pixel opening 103 is increased, thereby improving display defects such as color shift or dispersion after the light modulation layer is superimposed in the display panel and improving the display quality of the display panel.

[0074] It should be noted that, in the above embodiments, as Figure 11 As shown, the size of the i-th third pixel opening 103 in the second direction Y can be the same as the size of the (i+1)-th third pixel opening 103 in the second direction Y, so that the opening area of ​​each third pixel opening 103 is the same. However, this application does not limit this. In other embodiments of this application, the size of the i-th third pixel opening 103 in the second direction Y can also be different from the size of the (i+1)-th third pixel opening 103 in the second direction Y, such as... Figure 10 As shown, the specifics depend on the circumstances.

[0075] In another embodiment of this application, such as Figure 12 As shown, the first position A is located on the side of the second position B away from the fourth position D, and the third position C is the same as the fourth position D. By reducing the length of the i-th third pixel opening 103 in the second direction Y, the distance between the i-th third pixel opening 103 and the (i+1)-th third pixel opening 103 is increased, thereby improving the display quality of the display panel and reducing display defects such as color shift or dispersion after the light modulation layer is superimposed.

[0076] It should be noted that, in the above embodiments, as Figure 13 As shown, the size of the i-th third pixel opening 103 in the second direction Y can be the same as the size of the (i+1)-th third pixel opening 103 in the second direction Y, so that the area of ​​the opening region corresponding to each third pixel opening 103 is the same. However, this application does not limit this. In other embodiments of this application, the size of the i-th third pixel opening 103 in the second direction Y can also be different from the size of the (i+1)-th third pixel opening 103 in the second direction Y, such as... Figure 12 As shown, the specifics depend on the circumstances.

[0077] In yet another embodiment of this application, such as Figure 14As shown, the first position A and the second position B are different, and the third position C and the fourth position D are different. By reducing the length of the i-th third pixel opening 103 in the second direction Y and the length of the (i+1)-th third pixel opening 103 in the second direction Y, the distance between the i-th third pixel opening 103 and the (i+1)-th third pixel opening 103 is increased, thereby improving display defects such as color shift or dispersion after the light modulation layer is superimposed in the display panel and improving the display quality of the display panel.

[0078] It should be noted that, in the embodiments of this application, as Figure 14 As shown, in the second direction Y, the first position A is located on the side of the fourth position D facing the second position B, and the third position C is located on the side of the second position B facing the fourth position D. This allows the display effects of the display areas corresponding to the first pixel unit area 11 and the second pixel unit area 12 to be independent of each other, reducing the mutual influence between the display content corresponding to the first pixel unit area 11 and the second pixel unit area 12. However, this application does not limit this, as long as the first position A is not located on the side of the fourth position D away from the second position B, and the third position C is not located on the side of the second position B away from the fourth position D.

[0079] Optionally, based on the above embodiments, in one embodiment of this application, the following continues... Figure 14 As shown, the first position A is located on the side of the second position B away from the fourth position D, and the third position C is located on the side of the fourth position D away from the second position B, so as to further reduce the mutual influence between the display content corresponding to the first pixel unit area 11 and the second pixel unit area 12.

[0080] Based on the above implementation, in one embodiment of this application, such as Figure 14 and Figure 15 As shown, there is a first distance d11 between the first position A and the second position B, and a second distance d12 between the third position C and the fourth position D. Optionally, in one embodiment of this application, the first distance d11 and the second distance d12 are equal, so as to balance the uniformity of the display effect when the first pixel unit region 11 and the second pixel unit region 12 display the same content. However, this application is not limited to this. In other embodiments of this application, the first distance d11 may also be greater than the second distance d12, such as... Figure 16 As shown, or less than the second distance d12, such as Figure 17 As shown, the specifics depend on the circumstances.

[0081] It should be noted that compared to setting the display panel with a first distance d11 greater than or less than the second distance d12, setting the display panel with the first distance d11 and the second distance d12 equal has a better effect on improving the display quality; setting the display panel with the first distance d11 greater than the second distance d12 and setting the display panel with the first distance d11 less than the second distance d12 have basically the same effect on improving the display quality.

[0082] Based on any of the above embodiments, in one embodiment of this application, such as Figure 18 As shown, Figure 18 for Figure 17 Along the cross-sectional view of FF', the display panel further includes a light modulation structure 60 located on the side of the pixel definition layer 10 away from the array substrate 20. This light modulation structure 60 includes a plurality of first light modulation portions 61. In this embodiment, there are gaps (e.g., d1, d2) between adjacent pixel openings, and one first light modulation portion 61 corresponds to one gap between adjacent pixel openings. That is, there are gaps between adjacent light-emitting functional layers 30, and one first light modulation portion 61 corresponds to one gap between adjacent light-emitting functional layers 30. Furthermore, in the third direction Z, the first light modulation portion 61 overlaps with its corresponding gap, and the third direction Z is perpendicular to the plane of the display panel. That is, in this embodiment, as shown... Figure 18 and Figure 19 As shown, Figure 19 for Figure 17 In the sectional view along MM', due to the large number of labels, to facilitate showing the labels and their corresponding positions, at the pixel opening positions, Figure 19 The anode and cathode layers are no longer shown in the subsequent cross-sectional views. A first light modulation portion 61 is correspondingly provided above the gap between any two adjacent first pixel openings 101 and second pixel openings 102. A first light modulation portion 61 is also correspondingly provided above the gap between any two adjacent third pixel openings 103. This ensures that a first light modulation portion 61 is correspondingly provided above the gap between any two adjacent pixel openings, thereby improving the display quality of the display panel by addressing the display defects such as color shift or dispersion caused by the small gap between the i-th third pixel opening 1031 and the (i+1)-th third pixel opening 1032, which prevents the corresponding placement of the first light modulation portion 61.

[0083] Specifically, in one embodiment of this application, the following continues... Figure 18 and Figure 19 As shown, the plurality of first light modulation sections 61 include a first sub-light modulation section 611, a second sub-light modulation section 612, and a third sub-light modulation section 613, wherein,

[0084] In the second direction Y, there is a first gap d1 between the i-th third pixel opening 1031 and the (i+1)-th third pixel opening 1032; in the third direction Z, the first sub-ray modulation portion 611 overlaps with the first gap d1.

[0085] In the second direction Y, there is a second gap d2 between the (i+1)th third pixel opening 1032 and the (i+2)th third pixel opening 1033; in the third direction Z, the second sub-ray modulation portion 612 overlaps with the second gap d2.

[0086] In the second direction Y, there is a third gap d3 between adjacent first pixel opening 101 and second pixel opening 102; in the third direction Z, the third sub-ray modulation portion 613 overlaps with the third gap d3.

[0087] Optionally, in one embodiment of this application, the following continues... Figure 18 As shown, d1 < d2. In the second direction Y, the width of the second sub-light modulation portion 612 is greater than the width of the first sub-light modulation portion 611. In this embodiment, d1 can optionally be greater than 6μm to ensure the improvement effect on the display quality of the display panel without increasing the manufacturing difficulty of the first light modulation portion 61. This application does not limit this. In other embodiments of this application, d1 can also be greater than d2. Accordingly, in the second direction Y, the width of the second sub-light modulation portion 612 is less than the width of the first sub-light modulation portion 611, depending on the specific situation.

[0088] It should be noted that in the above embodiments, if d3 < d1, then in the second direction Y, the width of the first sub-light modulation portion 611 is greater than the width of the third sub-light modulation portion 613; if d3 equals d1, then in the second direction Y, the width of the first sub-light modulation portion 611 is equal to the width of the third sub-light modulation portion 613.

[0089] Based on any of the above embodiments, in one embodiment of this application, the following continues... Figures 18-19 As shown, the light modulation structure 60 further includes a second light modulation portion 62 located on the side of the first light modulation portion 61 away from the array substrate 20, covering the display area of ​​the display panel. The second light modulation portion 62 has a different refractive index than the first light modulation portion 61, so that the interface between the first light modulation portion 61 and the second light modulation portion 62 forms a functional interface. This functional interface can redirect the large-angle light emitted by the light-emitting functional layer 30. After the action of the functional interface, the light is deflected towards the frontal view direction of the display panel, reducing the probability of total internal reflection of the light inside the display panel, thereby improving the light emission efficiency of the light-emitting functional layer 30 and thus improving the luminous efficiency of the display panel.

[0090] Optionally, in one embodiment of this application, the following continues... Figure 18 As shown, the refractive index of the first light modulation portion 61 is less than that of the second light modulation portion 62. In this embodiment, when a large-angle light emitted from the light-emitting functional layer 30 is incident from the first light modulation portion 61 to the second light modulation portion 62, the light travels from a less dense medium to a denser medium, resulting in an incident angle greater than the refraction angle. Compared to the incident light, the angle between the refracted light exiting the second light modulation portion 62 and the third direction Z is smaller, such as with light ray S1. This causes the light entering the second light modulation portion 62 to deflect towards the frontal view direction of the display panel, thereby reducing the probability of total internal reflection within the display panel and improving the light emission efficiency of the light-emitting functional layer 30, thus increasing the luminous efficiency of the display panel. When a large-angle light emitted from the light-emitting functional layer 30 is incident from the second light modulation portion 62 to the first light modulation portion 61, the light travels from a denser medium to a less dense medium, and total internal reflection can occur when the incident angle is greater than the critical angle. Compared to the incident light, the angle between the totally internalized light and the third direction Z is also smaller, such as the light ray S2, which can also improve the light emission efficiency of the light-emitting functional layer 30, thereby improving the luminous efficiency of the display panel.

[0091] Optionally, in the above embodiment, on the third direction Z, the first light modulation portion 61 covers its corresponding gap, so that the first light modulation portion 61 and the second light modulation portion 62 can modulate more large-angle light, improve the light emission efficiency of the light-emitting functional layer 30, and thus improve the light emission efficiency of the display panel.

[0092] In another embodiment of this application, such as Figure 20 As shown, multiple light modulation portions 61 are different components of the same light modulation layer 63, which covers the display area of ​​the display panel. It should be noted that in this embodiment, the light modulation structure further includes a second light modulation portion 62 located between the light modulation layer 63 containing the first light modulation portion 61 and the multiple light-emitting functional layers 30. The second light modulation portion 62 includes multiple sub-light modulation portions, each corresponding to one light-emitting functional layer 30 and located above its corresponding light-emitting functional layer 30. In this embodiment, the refractive index of the second light modulation portion 62 is different from that of the first light modulation portion 61, so that a functional interface is formed at the interface between the first light modulation portion 61 and the second light modulation portion 62. This functional interface can redirect large-angle light emitted from the light-emitting functional layer 30. After passing through the functional interface, the light is deflected towards the viewing direction of the display panel, reducing the probability of total internal reflection within the display panel, thereby improving the light emission efficiency of the light-emitting functional layer 30 and thus improving the luminous efficiency of the display panel.

[0093] Optionally, in one embodiment of this application, the refractive index of the first light modulation portion 61 is less than that of the second light modulation portion 62. In this embodiment, the large-angle light emitted from the light-emitting functional layer 30 is incident from the second light modulation portion 62 to the first light modulation portion 61, which is an incident light from a denser medium to a less dense medium, with a refraction angle greater than the incident angle. Compared to the incident light, the angle between the refracted light and the third direction Z is also smaller, thereby causing the large-angle light to deflect towards the frontal view of the display panel, such as light ray S3, reducing the probability of total internal reflection inside the display panel, improving the light emission efficiency of the light-emitting functional layer 30, and thus improving the luminous efficiency of the display panel.

[0094] Optionally, in the above embodiment, on the third direction Z, the second light modulation portion 62 covers its corresponding light-emitting functional layer 30, so that the first light modulation portion 61 and the second light modulation portion 62 can modulate more large-angle light, improve the light emission efficiency of the light-emitting functional layer 30, and thus improve the light emission efficiency of the display panel.

[0095] In another embodiment of this application, such as Figure 21 As shown, the first light modulation portion 61 is a component of the light-shielding layer 65. The light-shielding layer 65 has multiple openings, which correspond to the light emission areas of the light-emitting functional layer 30. The first light modulation portion 61 reduces light reflection in non-opening areas of the display panel, improving the display quality. Simultaneously, the openings in the light-shielding layer 65 allow light emitted from the light-emitting functional layer 30 to pass through, ensuring that the light-shielding layer 65 does not affect the display content of the display panel. Optionally, in this embodiment, continuing as... Figure 18 As shown, the distance d1 between the i-th third pixel opening 1031 and the (i+1)-th third pixel opening 1032 is greater than 4μm to ensure the improvement of the display quality of the display panel without increasing the manufacturing difficulty of the first light modulation part 61. However, this application does not limit this, and it depends on the specific circumstances.

[0096] Optionally, based on the above embodiments, in one embodiment of this application, the following continues... Figure 21 As shown, the display panel also includes a color resist unit 64 located within the opening, so as to reduce the amount of light reflection in the opening area of ​​the display panel and improve the display quality of the display panel.

[0097] It should be noted that, in this embodiment, the color resist unit in the display panel includes a first color color resist unit, a second color color resist unit, and a third color resist unit. The first color color resist unit is located above the opening of the first pixel, allowing light of the first color to pass through the area where the first pixel opening is located. The second color color resist unit is located above the opening of the second pixel, allowing light of the second color to pass through the area where the second pixel opening is located. The third color color resist unit is located above the opening of the third color, allowing light of the third color to pass through the area where the third pixel opening is located. Thus, by utilizing the color resist units to reduce the amount of light reflection from the display panel, the display panel can achieve full-color display. Optionally, the first color is red, the second color is green, and the third color is blue, but this application does not limit this and the choice depends on the specific circumstances.

[0098] Based on any of the above embodiments, in one embodiment of this application, the following continues... Figure 21 As shown, the display panel also includes a planarization layer 21 located between the array substrate 20 and the pixel definition layer 10. The planarization layer 21 is used to provide a flat fabrication surface for the light-emitting functional layer 30 and the pixel definition layer 10.

[0099] Optionally, based on the above embodiments, in one embodiment of this application, the following continues... Figure 21 As shown, the display panel also includes a thin-film encapsulation layer 40 covering multiple light-emitting functional layers 30. The thin-film encapsulation layer 40 is used to isolate water and oxygen to ensure the service life of the light-emitting functional layers 30. Optionally, the thin-film encapsulation layer 40 includes at least one inorganic layer and at least one organic layer.

[0100] Based on any of the above embodiments, in one embodiment of this application, the following continues... Figure 21 As shown, the display panel also includes a protective cover 50 located on the side of the light modulation structure 60 away from the array substrate 20, for protecting the internal structure of the display panel.

[0101] Based on any of the above embodiments, in one embodiment of this application, such as Figure 22 As shown, the display panel further includes a touch layer 80, located between the light modulation structure 60 and the thin-film encapsulation layer 40, so that the display panel integrates touch functionality. Optionally, the touch layer 80 includes a first touch layer 81 and a second touch layer 82, with an insulating layer disposed between the first touch layer 81 and the second touch layer 82 to achieve touch detection using the first touch layer 81 and the second touch layer 82.

[0102] Based on any of the above embodiments, in one embodiment of this application, the following continues... Figure 22As shown, the display panel may also include a polarizer 70, which is located between the light modulation structure 60 and the protective cover plate 50 to reduce the amount of light reflection on the display surface of the display panel and improve the display quality.

[0103] In addition, such as Figure 23 As shown, this application embodiment also provides a display device 200, which includes the display panel provided in any of the above embodiments. Optionally, the display device 200 can be a mobile phone, tablet computer, wearable device, in-vehicle device, augmented reality (AR) / virtual reality (VR) device, laptop computer, ultra-mobile personal computer (UMPC), netbook, personal digital assistant (PDA), etc., and this application embodiment does not impose any limitations on this.

[0104] In summary, the display panel and display device provided in this application embodiment have a first light-emitting functional layer disposed in the first pixel opening, a second light-emitting functional layer disposed in the second pixel opening, and a third light-emitting functional layer disposed in the third pixel opening. In the second direction Y, the distance between the i-th third pixel opening 103 and the (i+1)-th third pixel opening 103 is d1, and the distance between the (i+1)-th third pixel opening 103 and the (i+2)-th third pixel opening 103 is d2, where d1 ≠ d2. This allows the i-th third pixel opening 103 and the (i+1)-th third pixel opening 103 to share one opening of the mask during the formation of the third light-emitting functional layer, thereby improving the light-emitting efficiency of the i-th third pixel opening 103 and the (i+2)-th third pixel opening 103. The aperture ratio of the (i+1)th third pixel aperture 103, or the (i+1)th third pixel aperture 103 and the (i+2)th third pixel aperture 103 can share an aperture of the mask, thereby increasing the aperture ratio of the (i+1)th third pixel aperture 103 and the (i+2)th third pixel aperture 103, thereby increasing the display brightness of the third light-emitting functional layer in the display panel and improving the display quality of the display panel. That is, by using two adjacent third light-emitting functional layers with small spacing in the second direction Y to share an aperture of the mask, the aperture ratio of the third light-emitting functional layer in the display panel is increased, thereby increasing the display brightness of the third light-emitting functional layer in the display panel under the same driving signal, and finally improving the display quality of the display panel.

[0105] Furthermore, in the display panel and display device provided in this application embodiment, in the second direction Y, the distance between adjacent first pixel openings 101 and second pixel openings 102 is d3, d1≥d3 and d2≥d3, so that by increasing the distance between two adjacent third pixel openings 103 with a small distance, a light modulation layer can be set above the gap between any two adjacent third pixel openings 103 in the second direction Y, thereby alleviating the phenomenon of deteriorated display quality caused by the small size above the gap between some adjacent third pixel openings 103, which makes it impossible to set a light modulation layer, and improving the display quality of the display panel.

[0106] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. For the apparatuses disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0107] It should be noted that, in the description of this application, the accompanying drawings and embodiments are illustrative rather than restrictive. It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in an article or device comprising the aforementioned element.

[0108] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, include: Array substrate; A pixel definition layer located on one side of the array substrate, the pixel definition layer including a plurality of pixel openings; The light-emitting functional layer is located within the pixel opening; The plurality of pixel openings include: The first column of pixel openings and the second column of pixel openings are arranged along a first direction. The first column of pixel openings includes first pixel openings and second pixel openings arranged periodically along a second direction. The second column of pixel openings includes the i-th third pixel opening, the (i+1)-th third pixel opening, and the (i+2)-th third pixel opening arranged along the second direction, where i is an integer not less than 1. In the second direction, the distance between the i-th third pixel opening and the (i+1)-th third pixel opening is d1, and the distance between the (i+1)-th third pixel opening and the (i+2)-th third pixel opening is d2, where d1 ≠ d2, and i is any positive integer not greater than N-2, where N is an integer greater than 4. In the second direction, the distance between adjacent first pixel openings and second pixel openings is d3. Wherein, a first light-emitting functional layer is provided in the first pixel opening, a second light-emitting functional layer is provided in the second pixel opening, and a third light-emitting functional layer is provided in the third pixel opening; d1≥d3, and d2≥d3.

2. The display panel according to claim 1, characterized in that, In the second direction, the distance between the 2k+1th third pixel opening and the 2k+2th third pixel opening is d1, where k is any integer not less than 0. In the second direction, the distance between the (2j+2)th third pixel opening and the (2j+3)th third pixel opening is d2, where j is any integer not less than 0.

3. The display panel according to claim 1, characterized in that, d1 < d2; the i-th third pixel opening and the r-th first pixel opening are in the same row, the (i+1)-th third pixel opening and the t-th second pixel opening are in the same row, the r-th first pixel opening and the t-th second pixel opening are in adjacent rows, r is an integer not less than 1, and t is an integer not less than 1.

4. The display panel according to claim 3, characterized in that, In the second direction, the i-th third pixel opening has a first position toward the boundary of the (i+1)-th third pixel opening, and the r-th first pixel opening has a second position toward the boundary of the t-th second pixel opening; In the second direction, the first position and the second position are the same.

5. The display panel according to claim 3, characterized in that, In the second direction, the (i+1)th third pixel opening has a third position facing the boundary of the ith third pixel opening, and the tth second pixel opening has a fourth position facing the boundary of the rth first pixel opening; In the second direction, the third position is the same as the fourth position.

6. The display panel according to claim 3, characterized in that, In the second direction, the i-th third pixel opening has a first position toward the boundary of the (i+1)-th third pixel opening, the r-th first pixel opening has a second position toward the boundary of the t-th second pixel opening, the (i+1)-th third pixel opening has a third position toward the boundary of the i-th third pixel opening, and the t-th second pixel opening has a fourth position toward the boundary of the r-th first pixel opening. In the second direction, the first position and the second position are the same, and the third position and the fourth position are the same.

7. The display panel according to claim 3, characterized in that, In the second direction, the i-th third pixel opening has a first position toward the boundary of the (i+1)-th third pixel opening, the r-th first pixel opening has a second position toward the boundary of the t-th second pixel opening, the (i+1)-th third pixel opening has a third position toward the boundary of the i-th third pixel opening, and the t-th second pixel opening has a fourth position toward the boundary of the r-th first pixel opening. In the second direction, the first position and the second position are different, and the third position and the fourth position are different.

8. The display panel according to claim 7, characterized in that, d1 > d3.

9. The display panel according to claim 8, characterized in that, In the second direction, the first position is located on the side of the second position away from the fourth position, and the third position is located on the side of the fourth position away from the second position.

10. The display panel according to claim 9, characterized in that, In the second direction, there is a first distance between the first position and the second position, and a second distance between the third position and the fourth position; The first distance is equal to the second distance, or the first distance is greater than the second distance, or the first distance is less than the second distance.

11. The display panel according to claim 7, characterized in that, In the second direction, the first position is located on the side of the fourth position facing the second position, and the third position is located on the side of the second position facing the fourth position.

12. The display panel according to claim 1, characterized in that, The display panel also includes: A light modulation structure located on the side of the pixel definition layer away from the array substrate, the light modulation structure comprising a plurality of first light modulation portions; There is a gap between adjacent pixel openings, one first light modulation portion corresponds to one gap between adjacent pixel openings, and in a third direction, the first light modulation portion overlaps with its corresponding gap, and the third direction is perpendicular to the plane where the display panel is located.

13. The display panel according to claim 12, characterized in that, In the third direction, the first light modulation portion covers its corresponding gap.

14. The display panel according to claim 12, characterized in that, d1 < d2; the plurality of first light modulation sections include a first sub-light modulation section, a second sub-light modulation section, and a third sub-light modulation section, wherein, In the second direction, there is a first gap between the i-th third pixel opening and the (i+1)-th third pixel opening; in the third direction, the first sub-light modulation portion overlaps with the first gap; In the second direction, there is a second gap between the (i+1)th third pixel opening and the (i+2)th third pixel opening; in the third direction, the second sub-light modulation portion overlaps with the second gap; In the second direction, there is a third gap between adjacent first pixel openings and second pixel openings; in the third direction, the third sub-ray modulation portion overlaps with the third gap. In the second direction, the width of the second sub-light modulation portion is greater than the width of the first sub-light modulation portion.

15. The display panel according to claim 14, characterized in that, d3 < d1; in the second direction, the width of the first sub-light modulation portion is greater than the width of the third sub-light modulation portion.

16. The display panel according to claim 12, characterized in that, The light modulation structure further includes a second light modulation portion located on the side of the first light modulation portion away from the array substrate, covering the display area of ​​the display panel, wherein the refractive index of the second light modulation portion is different from that of the first light modulation portion.

17. The display panel according to claim 12, characterized in that, The first light modulation part is a component of the light-shielding layer, and the light-shielding layer has multiple openings, which correspond to the light emission area of ​​the light-emitting unit in the display panel; The display panel also includes a color resist unit located within the opening.

18. The display panel according to claim 12, characterized in that, The display panel also includes: A thin-film encapsulation layer is located on the side of the display panel away from the array substrate of the light-emitting unit; The touch layer is located between the light modulation structure and the thin film encapsulation layer.

19. The display panel according to claim 1, characterized in that, The first light-emitting functional layer is a red light-emitting functional layer, the second light-emitting functional layer is a green light-emitting functional layer, and the third light-emitting functional layer is a blue light-emitting functional layer.

20. A display device, characterized in that, Includes the display panel as described in any one of claims 1-19.

Images