Display panel

Abstract

The embodiment of the present application discloses a display panel, the display panel comprises a light-emitting layer and an adjusting layer, the light-emitting layer comprises a plurality of light-emitting unit groups arranged along a first direction, each light-emitting unit group comprises at least one light-emitting unit, and the plurality of light-emitting unit groups comprise a visual center unit group; the adjusting layer comprises a plurality of adjusting unit groups corresponding to the light-emitting unit groups; the adjusting layer is arranged on one side of the light-emitting layer; when the adjusting layer is arranged on the backlight side of the light-emitting layer, different adjusting unit groups can be arranged to have different thicknesses or different inclination angle numbers; when the adjusting layer is arranged on the light-emitting side of the light-emitting layer, different adjusting unit groups can be arranged to have different refractive indexes, so that the chroma difference of the electroluminescent display device caused by the viewing angle difference of the user is reduced, and the display effect of the display panel is further improved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel. Background Technology

[0002] In organic electroluminescent display panels, a top-emitting device structure is typically used. This structure consists of an overlapping total reflection anode, an organic light-emitting layer, and a semi-reflective cathode, which allows the light-emitting device structure to form a microcavity.

[0003] When the viewing point is fixed, the viewing angle of the light emitted by light-emitting devices at different locations is different. The farther the light-emitting device is from the viewing point, the larger the angle between the light emitted by the device and the normal of the corresponding light-emitting device as observed by the eye. Under these circumstances, it is easy to cause differences in the color of multiple light-emitting devices observed at that viewing point, that is, color difference when viewing the screen. This problem is particularly obvious in large-size organic light-emitting semiconductor display panels. Summary of the Invention

[0004] This application provides a display panel that can solve the problem of color difference caused by viewing the display panel from different angles by setting an adjustment layer, thereby improving the user experience.

[0005] This application provides a display panel, including:

[0006] The light-emitting layer includes a plurality of light-emitting unit groups arranged along a first direction. Each light-emitting unit group includes at least one light-emitting unit, and the plurality of light-emitting unit groups include a visual center unit group. The remaining plurality of light-emitting unit groups are respectively located on both sides of the visual center unit group.

[0007] An adjustment layer is disposed on one side of the backlight surface of the light-emitting layer. The adjustment layer includes multiple adjustment unit groups, which are disposed corresponding to the light-emitting unit groups.

[0008] In the direction perpendicular to the light-emitting layer, the plurality of adjustment unit groups have a plurality of thicknesses, such that the height of the light-emitting unit groups located on both sides of the visual center unit group is less than the height of the visual center unit group.

[0009] Optionally, in any two adjustment unit groups, the thickness of one adjustment unit group closer to the visual center unit group is greater than the thickness of the other adjustment unit group farther away from the visual center unit group.

[0010] Optionally, the display panel includes an array substrate, and the adjustment layer includes the array substrate.

[0011] Optionally, the array substrate layer includes a substrate layer, a control device layer disposed on the substrate layer, and a passivation layer disposed on the side of the control device layer opposite to the substrate layer;

[0012] In the direction perpendicular to the light-emitting layer, the thickness of the substrate layer and the control device layer corresponding to different adjustment unit groups are the same, while the passivation layer corresponding to different adjustment unit groups has different thicknesses.

[0013] This application also provides a display panel, including:

[0014] The light-emitting layer includes a plurality of light-emitting unit groups arranged along a first direction. Each light-emitting unit group includes at least one light-emitting unit, and the plurality of light-emitting unit groups include a visual center unit group. The remaining plurality of light-emitting unit groups are respectively located on both sides of the visual center unit group.

[0015] An adjustment layer is disposed on one side of the backlight surface of the light-emitting layer. The adjustment layer includes multiple adjustment unit groups, which are disposed corresponding to the light-emitting unit groups. The side of the adjustment unit group that contacts the light-emitting unit group is an inclined surface with an inclination angle, so that the light-emitting surface of the light-emitting unit in the corresponding light-emitting unit group is deflected by a preset angle.

[0016] In this configuration, the light-emitting surfaces of the light-emitting units in the light-emitting unit groups on both sides of the visual center unit group are all inclined toward the visual center unit group.

[0017] Optionally, in any two adjustment unit groups, the tilt angle of one adjustment unit group closer to the visual center unit group is less than the tilt angle of the other adjustment unit group farther from the visual center unit group.

[0018] Optionally, the display panel includes an array substrate, and the adjustment layer includes the array substrate.

[0019] Optionally, the array substrate layer includes a substrate layer, a control device layer disposed on the substrate layer, and a passivation layer disposed on the side of the control device layer opposite to the substrate layer;

[0020] In the direction perpendicular to the light-emitting layer, the thickness of the substrate layer and the control device layer corresponding to different adjustment unit groups are the same. The passivation layer corresponding to different adjustment unit groups has multiple passivation layer unit groups, and different passivation unit groups have different tilt angles on one side facing the light-emitting unit.

[0021] This application also provides a display panel, including:

[0022] The light-emitting layer includes a plurality of light-emitting unit groups arranged along a first direction. Each light-emitting unit group includes at least one light-emitting unit, and the plurality of light-emitting unit groups include a visual center unit group. The remaining plurality of light-emitting unit groups are respectively located on both sides of the visual center unit group.

[0023] An adjustment layer is disposed on one side of the light-emitting surface of the light-emitting layer. The adjustment layer includes multiple adjustment unit groups, and the multiple adjustment unit groups include an adjustment center unit group corresponding to the visual center unit group.

[0024] Wherein, the refractive index of the material of the adjustment unit group on both sides of the adjustment center unit group is greater than the refractive index of the material of the adjustment center unit group.

[0025] Optionally, in any two of the adjustment unit groups, the refractive index of the material of one adjustment unit group closer to the visual center unit group is less than the refractive index of the material of the other adjustment unit group farther away from the visual center unit group.

[0026] The beneficial effects of this invention include at least the following:

[0027] This application provides an adjustment layer on one side of the light-emitting layer. The adjustment layer can be located on either the backlight side or the light-emitting side of the light-emitting layer. When the adjustment layer is located on the side of the light-emitting layer closer to the substrate, different adjustment unit groups can be configured with different thicknesses or different tilt angles to reduce the chromaticity difference between adjacent light-emitting unit groups and the visual center unit group. When the adjustment layer is located on the side of the light-emitting layer away from the substrate, different adjustment unit groups can be configured with different refractive indices to reduce the chromaticity difference between adjacent light-emitting unit groups and the visual center unit group. Both of these technical solutions can effectively reduce the chromaticity difference caused by the user's viewing angle in the electroluminescent display device, further improving the display effect of the display panel. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the light-emitting layer structure of a display panel in the prior art;

[0030] Figure 2 This is a schematic diagram of a display panel light-emitting layer structure provided in an embodiment of this application;

[0031] Figure 3 This is a top view of the structure of a display panel provided in an embodiment of this application;

[0032] Figure 4 yes Figure 3 Cross-sectional view of line A-A';

[0033] Figure 5 This is a schematic diagram of the structure at the connection between the adjustment layer and the light-emitting layer provided in an embodiment of this application;

[0034] Figure 6 This is a schematic diagram of the structure at the connection between the adjustment layer and the light-emitting layer provided in an embodiment of this application;

[0035] Figure 7 This is a schematic diagram of the structure at the connection between the adjustment layer and the light-emitting layer provided in an embodiment of this application;

[0036] Figure 8 This is a top view of another display panel structure provided in an embodiment of this application;

[0037] Figure 9 This is a schematic diagram of the light-emitting layer structure of another display panel provided in an embodiment of this application;

[0038] Figure 10 This is a schematic diagram of a structure for adjusting the deflection of a light-emitting unit provided in an embodiment of this application;

[0039] Figure 11 This is a schematic diagram of the light-emitting layer structure of another display panel provided in an embodiment of this application. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] This application provides a display panel and a mobile terminal. Detailed descriptions are provided below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments. Furthermore, in the description of this application, the term "comprising" means "including but not limited to". The terms first, second, third, etc., are used merely as illustrative and do not impose numerical requirements or establish an order. Various embodiments of the present invention may exist in the form of a range; it should be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as a rigid limitation on the scope of the present invention; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values ​​within that range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single digits within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. Additionally, whenever a numerical range is indicated herein, it means including any referenced number (fraction or integer) within the indicated range.

[0042] In organic electroluminescent display panels, a top-emitting device structure is typically used. This structure consists of an overlapping total reflection anode, an organic light-emitting layer, and a semi-reflective cathode, which allows the light-emitting device structure to form a microcavity.

[0043] like Figure 1 As shown, when the observation point is fixed, the observation angle of the human eye is different for light emitted by light-emitting devices at different locations. The farther the light-emitting device is from the observation point, the larger the angle between the light emitted by the light-emitting device and the normal of the corresponding light-emitting device as observed by the human eye. Figure 1 When θ1 > θ2 > θ3, the resulting color difference between the multiple light-emitting devices observed at that location can lead to color discrepancies when viewing the screen. This problem is particularly pronounced in large-size organic light-emitting semiconductor display panels.

[0044] To address the aforementioned technical problems, this application provides the following technical solutions, as detailed in the following embodiments.

[0045] This application provides a display panel, such as... Figure 2 , Figure 3 and Figure 4 As shown, the display panel includes:

[0046] The light-emitting layer includes multiple light-emitting unit groups G201 arranged along a first direction F1. Each light-emitting unit group G201 includes at least one light-emitting unit 201. The multiple light-emitting unit groups G201 include a visual center unit group G201C. The remaining multiple light-emitting unit groups G201 are located on both sides of the visual center unit group G201C.

[0047] An adjustment layer 300 is disposed on one side of the backlight surface of the light-emitting layer. The adjustment layer 300 includes a plurality of adjustment unit groups, which are disposed corresponding to the light-emitting unit group G201.

[0048] In the direction perpendicular to the light-emitting layer, the plurality of adjustment unit groups have a plurality of thicknesses, such that the height of the light-emitting unit groups G201 located on both sides of the visual center unit group G201C is less than the height of the visual center unit group G201C.

[0049] Specifically, in this embodiment, a rectangular display panel is used as an example for illustration. The display panel includes a long side (length direction) and a short side (width direction).

[0050] Specifically, the center line CL of the display panel passes through the center of the display panel and is perpendicular to the display panel. The point of view for the human eye may or may not be on the center line CL. The second direction F2 is parallel to the center line CL. The first direction F1 and the second direction F2 form a preset angle.

[0051] Specifically, the light-emitting unit group G201 that is perpendicular to the display panel at the human eye's observation point is the visual center unit group G201C.

[0052] Specifically, the visual center unit group G201C includes multiple visual center units 201C.

[0053] It should be noted that the human eye's observation point is not necessarily on the plane of the display panel that passes through the center line CL and is perpendicular to the display panel. Therefore, the visual center unit group G201C set according to the user's observation point is not limited to the light-emitting unit group G201 at the center of the display panel. However, in this embodiment, the example is taken as the human eye's observation point being located on the plane of the display panel that passes through the center line CL and is perpendicular to the display panel.

[0054] Specifically, the display panel includes an array substrate and a light-emitting layer disposed on the array substrate. The array substrate includes a substrate layer and a control device layer. The control device layer includes a plurality of control devices for controlling the light-emitting unit 201 to emit light.

[0055] Specifically, the light-emitting layer includes a plurality of light-emitting unit groups G201 arranged along the first direction F1, and each light-emitting unit group G201 includes at least one light-emitting unit 201. In a specific embodiment, as shown... Figure 3 and Figure 8As shown, the light-emitting unit group G201 may include multiple columns of light-emitting units 201 arranged along the length of the display panel. The number of light-emitting units 201 in each column is the same, and the number of columns of light-emitting units 201 in different light-emitting unit groups G201 may be the same or different. Figure 8 The embodiment shown is an example where the number of columns of light-emitting units 201 in different light-emitting unit groups G201 is the same. The number of light-emitting units 201 in each column of different light-emitting unit groups G201 is the same, and the angle between the first direction F1 and the second direction F2 can be 90°.

[0056] Specifically, such as Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, the light-emitting layer includes: an anode layer 2013, a pixel definition layer 2014 disposed on the anode layer 2013, and a cathode layer 2011 disposed on the pixel definition layer 2014. Figures 5-7 (Not shown in the image); The pixel definition layer 2014 is provided with a plurality of pixel openings, one light-emitting unit 201 corresponds to one pixel opening, and the pixel opening is filled with organic light-emitting material 2012.

[0057] Specifically, the anode layer 2013 of the light-emitting layer is controlled and connected to the control device on the array substrate.

[0058] Specifically, the adjustment layer 300 may include an array substrate or a film layer separately disposed between the array substrate and the light-emitting layer. The specific material and structure are not limited. That is, any adjustment layer 300 structure that can adjust the height of the light-emitting unit 201 is within the protection scope of this application.

[0059] Specifically, the adjustment layer 300 includes multiple adjustment unit groups, each adjustment unit group includes multiple adjustment units, and the adjustment unit groups correspond to the light-emitting unit groups G201. The adjustment units within the adjustment unit groups correspond to the light-emitting units 201 within the light-emitting unit groups G201.

[0060] Specifically, the anode layer 2013 of the light-emitting layer is disposed on the adjustment layer 300, so that the height of the light-emitting unit 201 can be adjusted by the thickness of the adjustment unit.

[0061] It is understandable that when the adjustment layer 300 is disposed on the side of the light-emitting layer close to the substrate, the adjustment unit groups are disposed with different thicknesses, such as... Figure 4As shown, the height of the corresponding light-emitting unit group G201 can be adjusted to reduce the chromaticity difference between the adjacent light-emitting unit groups G201 and the visual center unit group G201C. That is, the angle between the emitted light (the emitted light of the light-emitting unit 201 as observed by the user) of the light-emitting unit 201 in different light-emitting unit groups G201 and the normal of the corresponding light-emitting unit 201 is smaller than before the adjustment layer 300 was set (i.e., φ < θ) (comparison). Figure 1 and Figure 2 As can be seen from the angle relationship, the above technical solution can effectively reduce the color difference caused by the difference in viewing angle of the user in the electroluminescent display device, further improve the display effect of the display panel, and enhance the user experience.

[0062] In one embodiment, such as Figure 2 As shown, in any two adjustment unit groups, the thickness of one adjustment unit group closer to the visual center unit group G201C is greater than the thickness of the other adjustment unit group farther away from the visual center unit group G201C.

[0063] Specifically, such as Figure 2 and Figure 3 As shown, the thickness of the adjustment unit group gradually decreases in the direction of extension from the center line CL to the short side of the display panel (positive (+F1) and negative (-F1) of the first direction F1).

[0064] It is understandable that by setting different adjustment unit groups with different thicknesses, and with a gradually decreasing trend in the extension direction from the center line CL to the short side of the display panel (the positive (+F1) and negative (-F1) direction of the first direction F1), the color difference between any two adjacent light-emitting unit groups G201 in the display panel remains stable, thereby improving the uniformity of the display panel display.

[0065] In one embodiment, the display panel includes an array substrate, and the adjustment layer 300 includes the array substrate.

[0066] Specifically, the array substrate includes a substrate layer, a control device layer disposed on the substrate layer, and a passivation layer PLN disposed on the side of the control device layer opposite to the substrate layer. Different adjustment unit groups have different thicknesses. This can be understood as the substrate layer corresponding to different adjustment unit groups in the array substrate having different thicknesses, or the control device layer corresponding to different adjustment unit groups in the array substrate having different thicknesses, or the passivation layer PLN corresponding to different adjustment unit groups in the array substrate having different thicknesses.

[0067] It is understandable that by using the array substrate as the adjustment layer 300, the height of the light-emitting unit 201 in the light-emitting unit group G201 can be adjusted by adjusting the thickness of the array substrate, which can effectively reduce the thickness of the display panel, making the display panel thinner and lighter, and the manufacturing process is convenient.

[0068] In one embodiment, such as Figures 5-7 As shown, the array substrate layer includes a substrate layer (not shown), a control device layer (not shown) disposed on the substrate layer, and a passivation layer PLN disposed on the side of the control device layer opposite to the substrate layer;

[0069] In the direction perpendicular to the light-emitting layer, the thickness of the substrate layer and the control device layer corresponding to different adjustment unit groups are the same, while the passivation layer PLN corresponding to different adjustment unit groups has different thicknesses. This can be compared... Figure 5 , Figure 6 and Figure 7 It can be seen that h3 > h2 > h1.

[0070] Specifically, the passivation layer PLN can be made of silicon nitride.

[0071] It is understandable that by setting different thicknesses of the uppermost passivation layer PLN of the array substrate, the metal traces of the control device layer of the array substrate can be prevented from breaking due to the height difference between the film layers, thus affecting the normal display of the display panel. Setting different thicknesses of the uppermost passivation layer PLN for the corresponding unit groups can, on the one hand, isolate the control device and the light-emitting unit 201, and on the other hand, solve the color difference problem between adjacent light-emitting unit groups G201.

[0072] This application embodiment also provides a display panel, such as Figure 9 and Figure 10 As shown, the display panel includes:

[0073] The light-emitting layer includes multiple light-emitting unit groups G201 arranged along a first direction F1. Each light-emitting unit group G201 includes at least one light-emitting unit 201. The multiple light-emitting unit groups G201 include a visual center unit group G201C. The remaining multiple light-emitting unit groups G201 are located on both sides of the visual center unit group G201C.

[0074] An adjustment layer 300 is disposed on one side of the backlight surface of the light-emitting layer. The adjustment layer 300 includes multiple adjustment unit groups, which are disposed corresponding to the light-emitting unit group G201. The side of the adjustment unit group that contacts the light-emitting unit 201 is an inclined surface M1 with an inclination angle α, so that the light-emitting surface P1 of the light-emitting unit 201 is deflected toward the visual center unit group G201C. The inclination angle α of the adjustment unit group corresponding to different light-emitting unit groups G201 is different.

[0075] Specifically, in this embodiment, a rectangular display panel is used as an example for illustration. The display panel includes a long side (length direction) and a short side (width direction).

[0076] Specifically, the display panel includes a center line CL, which passes through the center of the display panel and is perpendicular to the display panel. The point of view for the human eye may or may not be on the center line CL. The second direction F2 is parallel to the center line CL, and the first direction F1 and the second direction F2 form a preset angle.

[0077] Specifically, the light-emitting unit group G201 that is perpendicular to the display panel at the human eye's observation point is the visual center unit group G201C.

[0078] Specifically, the visual center unit group G201C includes multiple visual center units 201C.

[0079] It should be noted that the user's observation point is not necessarily on the plane that passes through the center line CL and is perpendicular to the display panel. Therefore, the visual center unit group G201C set according to the user's observation point is not limited to the light-emitting unit group G201 at the center of the display panel. In this embodiment, the visual center unit group G201C is described as the light-emitting unit group G201 at the center of the display panel.

[0080] Specifically, the display panel includes an array substrate and a light-emitting layer disposed on the array substrate. The array substrate includes a substrate layer and a control device layer. The control device layer includes a plurality of control devices for controlling the light-emitting unit 201 to emit light.

[0081] Specifically, the light-emitting layer includes a plurality of light-emitting unit groups G201 arranged along the first direction F1, and each light-emitting unit group G201 includes at least one light-emitting unit 201. In a specific embodiment, as shown... Figure 3 and Figure 8As shown, the light-emitting unit group G201 may include multiple columns of light-emitting units 201 arranged along the length of the display panel. The number of light-emitting units 201 in each column is the same. The number of columns of light-emitting units 201 in different light-emitting unit groups G201 may be the same or different. The number of light-emitting units 201 in each column of different light-emitting unit groups G201 is the same. The angle between the first direction F1 and the second direction F2 may be 90°.

[0082] Specifically, such as Figure 10 As shown, the light-emitting layer includes: an anode layer 2013, a pixel definition layer 2014 disposed on the anode layer 2013, and a cathode layer 2011 (not shown) disposed on the pixel definition layer 2014; the pixel definition layer 2014 is provided with a plurality of pixel openings, one light-emitting unit 201 corresponds to one pixel opening, and the pixel opening is filled with an organic light-emitting material 2012 (not shown).

[0083] Specifically, the adjustment layer 300 may include an array substrate or a film layer separately disposed between the array substrate and the light-emitting layer. The specific material and structure are not limited. That is, any structure that can adjust the tilt angle of the light-emitting unit 201 in the light-emitting unit group G201 is within the protection scope of this application.

[0084] Specifically, the anode layer 2013 of the light-emitting layer is controlled and connected to the control device on the array substrate.

[0085] Specifically, the adjustment layer 300 includes multiple adjustment unit groups, each adjustment unit group includes multiple adjustment units, and the adjustment unit groups correspond to the light-emitting unit groups G201. The adjustment units within the adjustment unit groups correspond to the light-emitting units 201 within the light-emitting unit groups G201.

[0086] Specifically, the anode layer 2013 of the light-emitting layer is disposed on the adjustment layer 300, so that the tilt angle of the light-emitting unit 201 can be adjusted by the tilt angle of the adjustment unit.

[0087] Specifically, such as Figure 9 As shown, in the positive (+F1) and negative (-F1) directions of the first direction F1, the light-emitting units 201 in the light-emitting unit group G201 located on both sides of the center line CL have opposite tilt directions.

[0088] Specifically, the tilt angles of the tilt surfaces M1 of any two adjacent adjustment units can be the same or different.

[0089] It is understandable that when the adjustment layer 300 is disposed on the side of the light-emitting layer close to the substrate, by setting tilted surfaces M1 with different tilt angles for different adjustment unit groups, and all tilting directions are towards the visual center unit group G201C, adjusting the specific tilt angle of the light-emitting unit group G201 can reduce the chromatic difference between the adjacent light-emitting unit groups G201 and the visual center unit group G201C. Specifically, this makes the angle between the emitted light (the emitted light of the light-emitting unit 201 as observed by the user) of the light-emitting unit 201 in different light-emitting unit groups G201 and the normal of the corresponding light-emitting unit 201 smaller than before the adjustment layer 300 is disposed (i.e., φ < θ) (for comparison). Figure 1 and Figure 9 In other words, adopting the above technical solution can effectively reduce the color difference caused by the difference in viewing angle of the user in the electroluminescent display device, further improve the display effect of the display panel, and enhance the user experience.

[0090] In one embodiment, in any two adjustment unit groups, the tilt angle α of one adjustment unit group closer to the visual center unit group G201C is less than the tilt angle α of the other adjustment unit group farther from the visual center unit group G201C.

[0091] Specifically, the center line CL passes through the visual center unit group G201C.

[0092] Specifically, such as Figure 9 As shown, the tilt angle of the adjustment unit group gradually increases in the direction of extension from the center line CL to the short side of the display panel (positive (+F1) and negative (-F1) of the first direction F1).

[0093] It is understandable that by setting different adjustment unit groups with different tilt angles, and with a gradually increasing trend in the extension direction from the center line CL to the short side of the display panel (the positive (+F1) and negative (-F1) direction of the first direction F1), the color difference between any two adjacent light-emitting units 201 in the display panel remains stable, thereby improving the uniformity of the display panel display.

[0094] In one embodiment, the display panel includes an array substrate, and the adjustment layer 300 includes the array substrate.

[0095] Specifically, the array substrate includes a substrate layer, a control device layer disposed on the substrate layer, and a passivation layer PLN disposed on the side of the control device layer facing away from the substrate layer. Different adjustment unit groups have different tilt angles. This can be understood as the substrate layers corresponding to different adjustment unit groups in the array substrate having different tilt angles, or the control device layers corresponding to different adjustment unit groups in the array substrate having different tilt angles, or the passivation layers PLN corresponding to different adjustment unit groups in the array substrate having different tilt angles.

[0096] It is understandable that by using the array substrate as the adjustment layer 300, the tilt angle of the light-emitting unit 201 in the light-emitting unit group G201 can be adjusted by adjusting the tilt angle of different areas of the array substrate. This can effectively reduce the thickness of the display panel, so that the display panel can achieve the effect of reducing color difference without adding an extra film layer, making the display panel thinner and lighter, and the manufacturing process is convenient.

[0097] In one embodiment, such as Figure 10 As shown, the array substrate layer includes a substrate layer (not shown), a control device layer (not shown) disposed on the substrate layer, and a passivation layer PLN disposed on the side of the control device layer opposite to the substrate layer;

[0098] In the direction perpendicular to the light-emitting layer, the thickness of the substrate layer and the control device layer corresponding to different adjustment unit groups are the same. The passivation layer PLN corresponding to different adjustment unit groups has multiple passivation layer PLN unit groups. The side of different passivation unit groups facing the light-emitting unit 201 is an inclined surface M1 and has different inclination angles α.

[0099] Specifically, the passivation layer PLN can be made of silicon nitride.

[0100] It is understandable that by setting the uppermost passivation layer PLN of the array substrate to have different tilt angles for different adjustment unit groups, it is possible to prevent the metal traces of the control device layer of the array substrate from breaking due to the height difference between film layers, thus affecting the normal display of the display panel. Setting different tilt angles for the uppermost passivation layer PLN corresponding to the adjustment unit groups can, on the one hand, isolate the control device and the light-emitting unit 201, and on the other hand, adjust the color difference between adjacent light-emitting units 201.

[0101] In one embodiment, the above-mentioned display panel technical solutions can be used in combination. For example, an adjustment layer 300 is provided on one side of the backlight of the light-emitting layer. The multiple adjustment unit groups corresponding to the adjustment layer 300 have different thicknesses. At the same time, the side of the corresponding adjustment unit group close to the light-emitting unit group G201 also has an inclined surface M1. This makes the light-emitting unit groups G201 on the light-emitting layer have different heights, and the light-emitting surface of the corresponding light-emitting unit 201 is deflected toward the visual center unit group G201C. This allows the light-emitting layer to overcome the color difference caused by the difference in the user's viewing angle after being adjusted by the adjustment layer 300.

[0102] This application embodiment also provides a display panel, such as Figure 11 As shown, the display panel includes:

[0103] The light-emitting layer includes multiple light-emitting unit groups G201 arranged along a first direction F1. Each light-emitting unit group G201 includes at least one light-emitting unit 201. The multiple light-emitting unit groups G201 include a visual center unit group G201C. The remaining multiple light-emitting unit groups G201 are located on both sides of the visual center unit group G201C.

[0104] An adjustment layer 300 is disposed on one side of the light-emitting surface P1 of the light-emitting layer. The adjustment layer 300 includes multiple adjustment unit groups, and the multiple adjustment unit groups include an adjustment center unit group corresponding to the visual center unit group G201C.

[0105] Wherein, the refractive index of the material of the adjustment unit group on both sides of the adjustment center unit group is greater than the refractive index of the material of the adjustment center unit group.

[0106] Specifically, the display panel includes a center line CL, which passes through the center of the display panel and is perpendicular to the display panel. The point of view for the human eye may or may not be on the center line CL. The second direction F2 is parallel to the center line CL. The first direction F1 and the second direction F2 form a preset angle, which can be 90°.

[0107] Specifically, the light-emitting layer includes: an anode layer 2013, a pixel definition layer 2014 disposed on the anode layer 2013, and a cathode layer 2011 disposed on the pixel definition layer 2014; the pixel definition layer 2014 is provided with a plurality of pixel openings, one light-emitting unit 201 corresponds to one pixel opening, the pixel openings are filled with organic light-emitting material 2012, and the adjustment layer 300 is disposed on the cathode layer 2011.

[0108] Specifically, the materials of different adjustment unit groups in the adjustment layer 300 are all different, including but not limited to one or more combinations of magnesium fluoride, silicon dioxide, aluminum oxide, silicon monoxide, titanium dioxide, titanium pentoxide, titanium trioxide, titanium monoxide, hafnium oxide, zirconium oxide, niobium oxide, magnesium oxide, zinc oxide, yttrium oxide, aluminum fluoride, and barium fluoride.

[0109] It is understandable that when the adjustment layer 300 is disposed on the side of the light-emitting layer away from the substrate, the adjustment unit groups can be configured to have different refractive indices. By setting these to reduce the chromaticity difference between the light-emitting unit group G201 and the visual center unit group G201C adjacent to the visual center unit group G201C, the above technical solutions can effectively reduce the chromaticity difference caused by the difference in viewing angle of the user in the electroluminescent display device, and further improve the display effect of the display panel.

[0110] In one embodiment, in any two adjustment unit groups, the refractive index of the material of one adjustment unit group closer to the visual center unit group G201C is less than the refractive index of the material of the other adjustment unit group farther away from the visual center unit group G201C.

[0111] Specifically, the center line CL passes through the visual center unit group G201C;

[0112] Specifically, as Figure 11 The embodiment shown is used as an example for illustration. The adjustment layer 300 includes a fourth adjustment unit group, a third adjustment unit group, a second adjustment unit group, and a first adjustment unit group extending from the center to the short edge of the display panel. The refractive index of the material of the fourth adjustment unit 3010 in the fourth adjustment unit group is n4, the refractive index of the material of the third adjustment unit 3011 in the third adjustment unit group is n3, the refractive index of the material of the second adjustment unit 3012 in the second adjustment unit group is n2, and the refractive index of the material of the first adjustment unit 3013 in the first adjustment unit group is n1, with n4 < n3 < n2 < n1.

[0113] It is understood that by setting multiple adjustment unit groups with different refractive indices, and the refractive index of the materials of each adjustment unit group gradually increases in the extension direction from the center line CL to the short side of the display panel (the positive (+F1) and negative (-F1) direction of the first direction F1), a small chromaticity difference is achieved between any two adjacent light-emitting units 201 in the display panel, thereby further improving the uniformity of the display panel display.

[0114] In summary, this application provides an adjustment layer 300 on one side of the light-emitting layer. The adjustment layer 300 can be located on the side of the light-emitting layer away from the substrate or on the side closer to the substrate. When the adjustment layer 300 is located on the side of the light-emitting layer closer to the substrate, the adjustment unit groups can be configured with different thicknesses or with adjustment unit groups having inclined surfaces M1, and the inclination angle α of the inclined surfaces M1 of different adjustment unit groups can be different. When the adjustment layer 300 is located on the side of the light-emitting layer away from the substrate, the adjustment unit groups can be configured with different refractive indices. The final effect is that after the adjustment layer 300 is provided, the angle between the emitted light of the light-emitting unit 201 in different light-emitting unit groups G201 and the normal of the corresponding light-emitting unit 201 is smaller than before the adjustment layer 300 is provided. The above technical solutions can effectively reduce the color difference caused by the difference in viewing angle of the user in the electroluminescent display device, and further improve the display effect of the display panel.

[0115] The above provides a detailed description of a display panel and mobile terminal provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display panel, characterized in that, include: The light-emitting layer includes a plurality of light-emitting unit groups arranged along a first direction. Each light-emitting unit group includes at least one light-emitting unit, and the plurality of light-emitting unit groups include a visual center unit group. The remaining plurality of light-emitting unit groups are respectively located on both sides of the visual center unit group. An adjustment layer is disposed on one side of the backlight surface of the light-emitting layer. The adjustment layer includes multiple adjustment unit groups, which are disposed corresponding to the light-emitting unit groups. In the direction perpendicular to the light-emitting layer, the plurality of adjustment unit groups have a plurality of thicknesses, such that the height of the light-emitting unit groups located on both sides of the visual center unit group is less than the height of the visual center unit group; in any two adjustment unit groups, the thickness of one adjustment unit group closer to the visual center unit group is greater than the thickness of the other adjustment unit group farther away from the visual center unit group.

2. The display panel as described in claim 1, characterized in that, The display panel includes an array substrate, and the adjustment layer includes the array substrate.

3. The display panel as described in claim 2, characterized in that, The array substrate layer includes a substrate layer, a control device layer disposed on the substrate layer, and a passivation layer disposed on the side of the control device layer opposite to the substrate layer; In the direction perpendicular to the light-emitting layer, the thickness of the substrate layer and the control device layer corresponding to different adjustment unit groups are the same, while the passivation layer corresponding to different adjustment unit groups has different thicknesses.

4. A display panel, characterized in that, include: The light-emitting layer includes a plurality of light-emitting unit groups arranged along a first direction. Each light-emitting unit group includes at least one light-emitting unit, and the plurality of light-emitting unit groups include a visual center unit group. The remaining plurality of light-emitting unit groups are respectively located on both sides of the visual center unit group. An adjustment layer is disposed on one side of the backlight surface of the light-emitting layer. The adjustment layer includes multiple adjustment unit groups, which are disposed corresponding to the light-emitting unit groups. The side of the adjustment unit group that contacts the light-emitting unit group is an inclined surface with an inclination angle, so that the light-emitting surface of the light-emitting unit in the corresponding light-emitting unit group is deflected by a preset angle. Wherein, the light-emitting surfaces of the light-emitting units in the light-emitting unit groups on both sides of the visual center unit group are all inclined toward the visual center unit group; In the direction perpendicular to the light-emitting layer, the plurality of adjustment unit groups have a plurality of thicknesses such that the height of the light-emitting unit groups located on both sides of the visual center unit group is less than the height of the visual center unit group; in any two adjustment unit groups, the thickness of one adjustment unit group closer to the visual center unit group is greater than the thickness of the other adjustment unit group farther away from the visual center unit group.

5. The display panel as described in claim 4, characterized in that, In any two adjustment unit groups, the tilt angle of one adjustment unit group closer to the visual center unit group is less than the tilt angle of the other adjustment unit group farther from the visual center unit group.

6. The display panel as described in claim 4, characterized in that, The display panel includes an array substrate, and the adjustment layer includes the array substrate.

7. The display panel as described in claim 6, characterized in that, The array substrate layer includes a substrate layer, a control device layer disposed on the substrate layer, and a passivation layer disposed on the side of the control device layer opposite to the substrate layer; In the direction perpendicular to the light-emitting layer, the thickness of the substrate layer and the control device layer corresponding to different adjustment unit groups are the same. The passivation layer corresponding to different adjustment unit groups has multiple passivation layer unit groups, and different passivation layer unit groups have different tilt angles toward the side of the light-emitting unit.

8. A display panel, characterized in that, include: The light-emitting layer includes a plurality of light-emitting unit groups arranged along a first direction. Each light-emitting unit group includes at least one light-emitting unit, and the plurality of light-emitting unit groups include a visual center unit group. The remaining plurality of light-emitting unit groups are respectively located on both sides of the visual center unit group. An adjustment layer is disposed on one side of the light-emitting surface of the light-emitting layer. The adjustment layer includes multiple adjustment unit groups, and the multiple adjustment unit groups include an adjustment center unit group corresponding to the visual center unit group. Wherein, the refractive index of the material of the adjustment unit group on both sides of the adjustment center unit group is greater than the refractive index of the material of the adjustment center unit group; in any two adjustment unit groups, the refractive index of the material of the adjustment unit group closer to the visual center unit group is less than the refractive index of the material of the adjustment unit group farther away from the visual center unit group.

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