Display device

Abstract

The embodiment of the present application discloses a display device, the display device comprises at least one display panel, the display panel can rotate display around a rotating shaft, the display panel comprises a plurality of spaced light emitting devices, the plurality of light emitting devices comprise a plurality of first light emitting devices, the plurality of first light emitting devices comprise a plurality of first light emitting device groups arranged along a first direction, the first light emitting device group comprises a plurality of first light emitting devices, the first direction is directed to the side of the display panel away from the rotating shaft by the rotating shaft, and the distribution density of each first light emitting device in a first light emitting device group close to the rotating shaft is less than the distribution density of each first light emitting device in another first light emitting device group away from the rotating shaft; the technical scheme of the present application can effectively improve the problem that the display brightness of the display device as a whole is uneven due to different rotating linear speeds of the light emitting devices at different positions on the display panel in the three-dimensional display device, and further improves the display brightness uniformity of the three-dimensional display device.

Description

Technical Field

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

[0002] Currently, there are many types of rotating display devices. The most common one on the market is the "3D" fan screen. The "3D" fan screen uses LED beads as light-emitting devices, which has the problems of low resolution and uneven display. Another type of scanning volumetric 3D display device uses one side of various displays as an axis to perform rotation scanning and form a cylindrical display space. This makes the brightness of this type of display device greater near the axis of rotation, and the overall brightness of the display panel is uneven, affecting the actual display effect.

[0003] Currently, the main methods to solve the above problems are to change the physical structure of the rotating device or to adjust the pixel lighting process through algorithms. These methods are not universal and greatly increase the complexity of the display method. Summary of the Invention

[0004] This application provides a display device that can effectively improve the problem of uneven display on the display panel in a three-dimensional display device.

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

[0006] At least one display panel, the display panel being rotatable about a rotation axis, the display panel including a plurality of first light-emitting device groups arranged in a first direction, the first light-emitting device group including a plurality of first light-emitting devices, the first direction being perpendicular to the rotation axis, and the first direction pointing from the rotation axis to the side of the display panel away from the rotation axis;

[0007] The distribution density of each first light-emitting device in a first light-emitting device group closer to the rotation axis is less than the distribution density of each first light-emitting device in another first light-emitting device group farther from the rotation axis.

[0008] Optionally, a first light-emitting device group includes at least one plurality of first subgroups arranged along a first direction, each first subgroup including a plurality of first light-emitting devices arranged along a second direction, the second direction being parallel to the rotation axis;

[0009] The distribution density of the first light-emitting devices is the same in at least one of the first subgroups within the first light-emitting device group.

[0010] Optionally, a first light-emitting device group includes at least two first subgroups arranged along the first direction, the first subgroups including a plurality of first light-emitting devices, and the plurality of first light-emitting devices are evenly spaced along the second direction.

[0011] Optionally, in any two adjacent first subgroups, the first light-emitting devices in one first subgroup and the first light-emitting devices in the other first subgroup are staggered along the second direction.

[0012] Optionally, a first light-emitting device group includes at least two first subgroups arranged along the first direction, wherein in any two first light-emitting device groups, the spacing between each first subgroup in one first light-emitting device group is equal to the spacing between each first subgroup in the other first light-emitting device group.

[0013] Optionally, the display panel includes a first display portion and a second display portion located on opposite sides of the rotation axis, a plurality of first light-emitting device groups located in the first display portion, and the second display portion includes a plurality of second light-emitting device groups arranged along the first direction, the second light-emitting device groups including a plurality of second light-emitting devices;

[0014] In the first light-emitting device group and the second light-emitting device group, which are at the same length from the rotation axis, the rotation paths of the plurality of first light-emitting devices in the first light-emitting device group and the plurality of second light-emitting devices in the second light-emitting device group do not overlap.

[0015] Optionally, the distance from the side of the first display unit away from the rotation axis to the rotation axis is equal to the distance from the side of the second display unit away from the rotation axis to the rotation axis.

[0016] Optionally, the display panel includes a plurality of driving thin-film transistors, one of which is connected to the first light-emitting device;

[0017] When the first light-emitting device emits light, the current in the driving transistor connected to the first light-emitting device that is closer to the rotation axis is less than the current in the driving transistor connected to the first light-emitting device that is farther away from the rotation axis.

[0018] Optionally, in the first direction, the width-to-length ratio of the channel portion of the driving thin-film transistor connected to one of the first light-emitting devices near the rotation axis is smaller than the width-to-length ratio of the channel portion of the driving thin-film transistor connected to the other first light-emitting device far from the rotation axis.

[0019] Optionally, the display panel includes a substrate, and the substrate is made of a transparent material.

[0020] The beneficial effects of this invention include at least the following:

[0021] This application addresses the issue of uneven brightness in a 3D display device caused by the varying rotational speeds of light-emitting devices at different positions on the display panel. The display panel includes multiple first light-emitting device groups arranged sequentially and at intervals along a first direction. Each first light-emitting device group comprises multiple light-emitting devices. In this first direction, the distribution density of light-emitting devices in a group closer to the rotation axis is less than that in another group farther from the rotation axis. By reducing the density of light-emitting devices closer to the rotation axis, the brightness of the light-emitting devices closer to the rotation axis within a preset range can be consistent with the brightness of light-emitting devices outside the preset range during 3D display. This solves the problem of uneven brightness across the entire 3D display device caused by the different rotational linear speeds of light-emitting devices at different positions on the display panel, further improving the uniformity of brightness in the 3D display device. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the structure of the display device provided in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of another display device provided in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the structure of a display device in use, provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of a display panel provided in an embodiment of this application;

[0027] Figure 5 This is a schematic diagram of another display panel provided in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the structure of a display device in use, provided in an embodiment of this application;

[0029] Figure 7 This is a schematic diagram illustrating the arrangement of light-emitting devices on a display device according to an embodiment of this application;

[0030] Figure 8 This is a schematic diagram illustrating the arrangement of light-emitting devices on another display device provided in an embodiment of this application;

[0031] Figure 9This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0032] Figure 10 This is a top view of the structure of a driving thin-film transistor channel provided in an embodiment of this application.

[0033] Figure labels: Display panel - 10, First direction - F1, Second direction - F2, Rotation axis - 20, Preset distance range - S, First subgroup - 1011, First display unit - 10A1, First display unit - 10A2, First light-emitting device group - 101a1, Second light-emitting device group - 101a2, First light-emitting device - 102a1, Second light-emitting device - 102a2, Driving thin film transistor - T1, Light-emitting layer - M10, Array substrate - M20, Substrate - M201, Driving device layer - M202, Gate - T102, Source - T104, Drain - T103, Channel - T101, Width - W, Length - L; Detailed Implementation

[0034] 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.

[0035] This application provides a display device. 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.

[0036] Currently, there are many types of rotating display devices. One type is the "3D" fan screen, which uses LED beads as light-emitting devices. It suffers from low resolution and uneven display. Another type is the scanning volumetric 3D display device, which uses one side of various displays as an axis to perform rotational scanning and form a cylindrical display space. This results in higher brightness near the axis of rotation, lower transparency, and uneven overall brightness of the display panel, affecting the actual display effect.

[0037] Currently, the main methods to solve the above problems are to change the physical structure of the rotating device or to adjust the pixel lighting process through algorithms. However, these methods are not universal and greatly increase the complexity of the display method.

[0038] To address the aforementioned technical problems, this application provides the following technical solutions, as detailed in the following embodiments and accompanying drawings. Figures 1-10 .

[0039] This application discloses a display device, such as... Figures 1-3 As shown, it includes:

[0040] At least one display panel 10 is rotatable about a rotation axis 20. The display panel 10 includes a plurality of spaced light-emitting devices. The plurality of light-emitting devices include a plurality of first light-emitting devices 102a1. The plurality of first light-emitting devices 102a1 include a plurality of first light-emitting device groups 101a1 arranged sequentially along a first direction F1. The first direction F1 is perpendicular to the rotation axis 20 and extends from the rotation axis 20 toward the side of the display panel 10 away from the rotation axis 20.

[0041] In the first direction F1, the distribution density of the first light-emitting device 102a1 in the first light-emitting device group 101a1 close to the rotation axis 20 is less than the distribution density of the first light-emitting device 102a1 in the other first light-emitting device group 101a1 far from the rotation axis 20.

[0042] Specifically, the distance between each of the first light-emitting device groups 101a1 and the rotation axis 20 is within a preset distance S, and each of the first light-emitting device groups 101a1 includes at least two first light-emitting devices 102a1.

[0043] Specifically, the display device is a three-dimensional display device, which realizes the display of three-dimensional images by setting the display panel 10 to rotate around a rotation axis 20. The rotation axis 20 can be a virtual axis or a physical axis, and the rotation mode of the display panel 10 can be rotation or revolution.

[0044] Furthermore, the rotation axis 20 can be located on the display panel 10 (e.g., Figure 2 and Figure 3 As shown, this includes areas located on one side of the display panel 10, or areas located on the display panel 10, dividing the display panel 10; alternatively, it can be as follows: Figure 1 As shown, located outside the display panel 10, in this embodiment, with Figure 2 The following explanation uses the display device shown as an example.

[0045] Specifically, the display panel 10 can be an organic electroluminescence display (OLED) panel or a Mini / Micro-LED display panel. Using the above-mentioned display panel 10 has a faster response speed, can achieve a higher refresh rate, and can further improve the color gamut, display brightness, etc. of the display device.

[0046] Specifically, such as Figure 3 As shown, when there are multiple display panels 10, the multiple display panels 10 rotate around the same rotation axis 20. The display panel 10 can be a double-sided display panel or a single-sided display panel. The specific configuration can be adjusted according to the actual production situation or needs. This application uses a single-sided display panel 10 as an example for illustration.

[0047] Specifically, such as Figure 4 As shown, the display panel 10 includes a plurality of first light-emitting devices 102a1 spaced apart, the plurality of first light-emitting devices 102a1 includes a plurality of first light-emitting device groups 101a1, the plurality of first light-emitting device groups 101a1 are arranged sequentially along a first direction F1, the first direction F1 is perpendicular to the rotation axis 20, and the first direction F1 extends from the rotation axis 20 toward the side of the display panel 10 away from the rotation axis 20;

[0048] The preset distance S range is determined based on the actual production situation of the display panel 10, specifically based on the PPI of the display panel 10, and the distribution density of the light-emitting units can be adjusted within the preset distance S range;

[0049] Within a preset distance S, the distribution density of the light-emitting units is adjusted so that the brightness of different positions on the display panel 10 is adjusted synchronously during the three-dimensional display process;

[0050] Outside the preset distance S range, the distribution density of the first light-emitting device 102a1 in the first light-emitting device group 101a1 reaches the maximum value of the pixel PPI design, and the distribution density of the first light-emitting device 102a1 is equal everywhere outside the preset distance S range.

[0051] Specifically, the spacing between the multiple first light-emitting device groups 101a1 can be the same or different, and there is no specific limitation. However, the different spacing between the multiple first light-emitting device groups 101a1 has little impact on the uniformity of light emission of the display device.

[0052] Specifically, a first light-emitting device group 101a1 includes at least two first light-emitting devices 102a1, and the length of multiple first light-emitting device groups 101a1 in the second direction F2 (parallel to the rotation axis 20) remains unchanged.

[0053] Specifically, when the first light-emitting device group 101a1 includes a plurality of spaced first light-emitting devices 102a1, the distribution density of the first light-emitting devices 102a1 in the first light-emitting device group 101a1 can gradually increase in the first direction F1, or the plurality of first light-emitting devices 102a1 in the first light-emitting device group 101a1 can be evenly distributed.

[0054] Specifically, the distribution density refers to the number of the first light-emitting devices 102a1 within the same unit area, wherein the length of the unit area can be the same as the length of one side of the display panel 10 parallel to the rotation axis 20, and the width of the unit panel is at least greater than the width of one first light-emitting device 102a1.

[0055] Specifically, in one example, assuming the initial arrangement of the first light-emitting device 102a1 is set to m rows and n columns, and the display panel refreshes once every α degrees of rotation, then the following conditions are met:

[0056] The number of first light-emitting devices 102a1 in column t

[0057] Furthermore, the first light-emitting device 102a1 is uniformly distributed in this column, where t is a positive integer greater than 1 and less than or equal to n;

[0058] The above technical solution enables the first light-emitting device 102a1 on the display panel 10 to operate at its highest efficiency.

[0059] Specifically, in this embodiment, the display panel 10 includes a control circuit. The control circuit controls at least one of the first light-emitting devices 102a1 to emit light and display (including switching the first light-emitting device 102a1 on and off and adjusting its brightness). In the embodiments of this application, the example of one control circuit controlling one first light-emitting device 102a1 to emit light is used for illustration. However, this application is not limited to this. One control circuit can simultaneously control two or more first light-emitting devices 102a1 to emit light. The specific control circuit can be adjusted according to the actual production situation.

[0060] The control circuit may include a first thin-film transistor, a second thin-film transistor, a third thin-film transistor, and a storage capacitor Cst, wherein the first thin-film transistor is a driving thin-film transistor T1, the second thin-film transistor is a switching thin-film transistor, the third thin-film transistor is a detection thin-film transistor, and the first thin-film transistor controls the brightness of the first light-emitting device 102a1.

[0061] It is understood that in this embodiment, the display panel 10 is configured to rotate around a rotation axis 20. The display panel 10 includes a plurality of spaced-apart first light-emitting devices 102a1, and the plurality of first light-emitting devices 102a1 includes a plurality of first light-emitting device groups 101a1. The distance between each first light-emitting device group 101a1 and the rotation axis 20 is within a preset distance S. Each first light-emitting device group 101a1 includes at least two first light-emitting devices 102a1. The plurality of first light-emitting device groups 101a1 are arranged sequentially along a first direction F1. In the first direction F1, the distribution of first light-emitting devices 102a1 in a first light-emitting device group 101a1 near the rotation axis 20 is as follows: The density is lower than the distribution density of the first light-emitting devices 102a1 in the first light-emitting device group 101a1 that is far from the rotation axis 20. By reducing the indexing density of the first light-emitting devices 102a1 near the rotation axis 20, the brightness of the first light-emitting devices 102a1 near the rotation axis 20 within a preset range can be consistent with the brightness of the first light-emitting devices 102a1 outside the preset range when the display device is performing three-dimensional display. This solves the problem of uneven brightness of the display device as a whole caused by the different rotation linear speeds of the first light-emitting devices 102a1 at different positions on the display panel 10 in the three-dimensional display device, and further improves the uniformity of the display brightness of the three-dimensional display device.

[0062] In one embodiment, such as Figure 5 As shown, a first light-emitting device group 101a1 includes at least one first subgroup 1011, and a first subgroup 1011 includes at least two first light-emitting devices 102a1. The at least two first light-emitting devices 102a1 in the first subgroup 1011 are arranged sequentially along a second direction F2, which is parallel to the rotation axis 20. The distribution density of the first light-emitting devices 102a1 in each first subgroup 1011 within the at least one first light-emitting device group 101a1 is the same.

[0063] Specifically, the plurality of first light-emitting device groups 101a1 include a plurality of first subgroups 1011, and the plurality of first subgroups 1011 can be arranged sequentially along the first direction F1, and the first light-emitting devices 102a1 in a first subgroup 1011 are arranged sequentially along the second direction F2.

[0064] Specifically, the distribution density of the first light-emitting devices 102a1 within each of the first subgroups 1011 in a first light-emitting device group 101a1 is the same, but this does not limit the distribution density of each of the first subgroups 1011 within all first light-emitting device groups 101a1 to be the same (e.g., Figure 4 As shown), this results in the overall distribution density of multiple light-emitting units in multiple light-emitting unit groups showing an increasing trend, while as... Figure 5 As shown, the partial density of the first light-emitting device 102a1 at some locations can be equal, which makes the brightness adjustment of the display panel 10 more flexible and does not affect the brightness uniformity of the display device.

[0065] Specifically, within the same first subgroup 1011, multiple first light-emitting devices 102a1 can be evenly spaced or have multiple intervals. The specific arrangement can be adjusted according to the shape of the display panel 10 of the display device or the actual rotation of the rotating axis 20, so as to make the display brightness of the display device more uniform.

[0066] It is understood that by setting different distribution densities of the first light-emitting devices 102a1 in each of the first subgroups 1011 within at least one first light-emitting device group 101a1, the brightness adjustment flexibility of the display panel 10 of the display device is made higher, without affecting the brightness uniformity of the display device.

[0067] In the above embodiments, a first light-emitting device group 101a1 includes at least two first subgroups 1011 arranged along the first direction F1, the first subgroup 1011 includes a plurality of first light-emitting devices 102a1, and the plurality of first light-emitting devices 102a1 are evenly spaced along the second direction F2.

[0068] It should be noted that since the display panel 10 rotates around the rotation axis 20, the reason why the display panel 10 generates bright lines is because the rotational linear speed of different first light-emitting devices 102a1 is different in the first direction F1, but in the second direction F2, the rotational linear speed of each first light-emitting device 102a1 is the same.

[0069] It is understandable that by setting the first light-emitting device 102a1 in the first subgroup 1011 to be evenly spaced in the second direction F2, the display brightness of the display panel 10 in the second direction F2 can be more uniform, thereby improving the uniformity of the display brightness of the display device.

[0070] In one embodiment, such as Figure 6As shown, in any two adjacent first subgroups 1011, the first light-emitting device 102a1 in one first subgroup 1011 and the first light-emitting device 102a1 in the other first subgroup 1011 are staggered along the second direction F2.

[0071] Specifically, in this embodiment, the staggered arrangement means that, in the first direction F1, two adjacent first subgroups 1011 are respectively the first subgroup 1011 and the second first subgroup 1011, and the first light-emitting device 102a1 in the first subgroup 1011 and the first light-emitting device 102a1 in the second first subgroup 1011 are not arranged in the same row.

[0072] It is understandable that by setting any two adjacent first subgroups 1011, the first light-emitting device 102a1 in one first subgroup 1011 and the first light-emitting device 102a1 in the other first subgroup 1011 are staggered along the second direction F2, which can effectively prevent the problem of horizontal bright lines caused by the concentration of the first light-emitting device 102a1 in some positions during the display process, and further improve the display uniformity of the display device.

[0073] In one embodiment, a first light-emitting device group 101a1 includes at least two first subgroups 1011 arranged along the first direction F1, wherein in any two first light-emitting device groups 101a1, the spacing between each first subgroup 1011 in one first light-emitting device group 101a1 is equal to the spacing between each first subgroup 1011 in the other first light-emitting device group 101a1.

[0074] Specifically, the fact that the spacing between each of the first subgroups 1011 in one first light-emitting device group 101a1 is equal to the spacing between each of the first subgroups 1011 in another first light-emitting device group 101a1 can be understood as meaning that, in the first direction F1, even if the arrangement of each of the first subgroups 1011 in any first light-emitting device group 101a1 is uniform.

[0075] It is understandable that by setting the spacing between each of the first subgroups 1011 in one first light-emitting device group 101a1 to be equal to the spacing between each of the first subgroups 1011 in another first light-emitting device group 101a1, the brightness of the display panel 10 in the first direction F1 can be made more uniform, and the production of the display panel 10 can be facilitated.

[0076] In one embodiment, such as Figure 7 and Figure 8As shown, the rotation axis 20 divides the display panel 10 into a first display section 10A1 and a second display section 10A2. A plurality of first light-emitting devices 102a1 are located in the first display section 10A1. The second display section 10A2 includes a plurality of second light-emitting device groups 101a2 arranged along the first direction F1. The second light-emitting device group 101a2 includes a plurality of second light-emitting devices 102a2.

[0077] Among them, such as Figure 8 As shown, in the first light-emitting device group 101a1 and the second light-emitting device group 101a2, which are the same length from the rotation axis 20, the rotation paths of the plurality of first light-emitting devices 102a1 on the first light-emitting device group 101a1 and the plurality of second light-emitting devices 102a2 on the second light-emitting device group 101a2 do not overlap.

[0078] It should be noted that when two or more display panels 10 (or two or more display parts) rotate around the rotation axis 20, this embodiment takes two display parts as an example for explanation. When some light-emitting devices on the two display parts are symmetrical about the rotation axis 20, when the display device displays, the brightness of the corresponding positions of the symmetrical parts overlaps, producing bright spots or bright lines, which affects the display effect of the three-dimensional display. In order to avoid the above-mentioned technical problems, the technical solution of this embodiment is provided.

[0079] Specifically, in this embodiment, the display panel 10 can be a single display panel 10 or a spliced ​​display panel 10. If it is a spliced ​​display panel 10, the splicing seam coincides with the rotation axis 20.

[0080] Specifically, in this embodiment, the area sizes of the first display unit 10A1 and the second display unit 10A2 may be the same or different. This embodiment will be described with the example that the area sizes of the first display unit 10A1 and the second display unit 10A2 are the same.

[0081] Specifically, since the first display unit 10A1 and the second display unit 10A2 are symmetrically arranged (symmetrical in shape), the first light-emitting device 102a1 on the first display unit 10A1 and the second light-emitting device 102a2 on the second display unit 10A2 are not symmetrically arranged.

[0082] Specifically, the rate of change of the first light-emitting device 102a1 on the first display unit 10A1 (the rate of change of the distribution density of the plurality of first light-emitting devices 102a1 relative to the distance from the rotation axis 20) is the same as the rate of change of the second light-emitting device 102a2 on the second display unit 10A2.

[0083] Specifically, in the first direction F1, there are a first light-emitting device group 101a1 and a second light-emitting device group 101a2 with the same length from the rotation axis 20. The first light-emitting device 102a1 in the first light-emitting device group 101a1 and the second light-emitting device 102a2 in the second light-emitting device group 101a2 are not arranged in the same row.

[0084] In other words, in this embodiment, after the first display unit 10A1 rotates around the rotation axis 20, it at least partially overlaps with the second display unit 10A2, but the first light-emitting device 102a1 on the first display unit 10A1 and the second light-emitting device 102a2 on the second display unit 10A2 do not overlap.

[0085] Specifically, when the three display panels 10 rotate around the rotation axis 20 and are symmetrical about the rotation axis 20, the light-emitting devices on the three display panels 10 do not overlap after they rotate and overlap around the rotation axis 20.

[0086] It is understandable that by adopting the above technical solution, the display effect of the display device can be made more uniform, and setting multiple display panels 10 will not produce bright lines or bright spots when the display device performs three-dimensional display, thereby improving the display effect of the display device and extending the service life of the display device.

[0087] As described in the above embodiment, the distance from the side of the first display unit 10A1 away from the rotation axis 20 to the rotation axis 20 is equal to the distance from the side of the second display unit 10A2 away from the rotation axis 20 to the rotation axis 20.

[0088] Specifically, in this embodiment, the area of ​​the first display unit 10A1 is equal to the area of ​​the second display unit 10A2, and the shape of the first display unit 10A1 is equal to the shape of the second display unit 10A2. The rate of change of the first light-emitting device 102a1 on the first display unit 10A1 (the rate of change of the distribution density of the plurality of first light-emitting devices 102a1 relative to the distance from the rotation axis 20) is the same as the rate of change of the second light-emitting device 102a2 on the second display unit 10A2. The difference on the first display unit 10A1 is that the arrangement position of the first light-emitting device 102a1 on the first display unit 10A1 is different from the arrangement position of the light-emitting device on the second display unit 10A2.

[0089] In one embodiment, the display panel 10 includes a plurality of driving thin-film transistors T1, one of which is connected to a first light-emitting device 102a1;

[0090] When the first light-emitting device 102a1 emits light, the current in the driving transistor T1 connected to the first light-emitting device 102a1 that is close to the rotation axis is less than the current in the driving transistor T1 connected to the other first light-emitting device 102a1 that is far away from the rotation axis 20.

[0091] like Figure 9 As shown, the display panel 10 includes a plurality of driving thin film transistors T1, the plurality of driving thin film transistors T1 includes a plurality of driving thin film transistor groups, a driving thin film transistor group includes at least two driving thin film transistors T1, a driving thin film transistor group is disposed corresponding to a first light-emitting device group 101a1, and a driving thin film transistor T1 is connected to a first light-emitting device 102a1.

[0092] When the driving thin-film transistor T1 controls the first light-emitting device 102a1 to emit light, in the first direction F1, the current of the driving thin-film transistor T1 in one of the driving thin-film transistor groups closer to the rotation axis 20 is less than the current of the driving thin-film transistor T1 in another driving thin-film transistor group farther away from the rotation axis 20.

[0093] It should be noted that when the spacing between the first light-emitting devices 102a1 near the rotation axis 20 is too large, it may lead to uneven brightness distribution or affect the PPI of the display device, thus affecting the display effect. In order to avoid the above-mentioned technical problems, the technical solution of this embodiment is provided.

[0094] Specifically, the display panel 10 includes a control circuit, which includes a driving thin-film transistor T1. The driving thin-film transistor T1 controls the brightness of the first light-emitting device 102a1. When the display panel 10 is displaying, the greater the current flowing through the driving thin-film transistor T1, the greater the brightness of the first light-emitting device 102a1. That is, the brightness of the first light-emitting device 102a1 is positively correlated with the magnitude of the current flowing through the driving thin-film transistor T1.

[0095] Specifically, the method for controlling the magnitude of the current flowing through the driving thin-film transistor T1 includes, but is not limited to, pre-setting the current through the driving chip of the display panel 10, or controlling the magnitude of the current flowing through the driving thin-film transistor T1 in different rows and columns by connecting resistors of different resistance values ​​in series in the control circuit.

[0096] It is understood that by setting one driving thin-film transistor group to correspond to one first light-emitting device group 101a1, and one driving thin-film transistor T1 connected to one first light-emitting device 102a1, when the driving thin-film transistor T1 controls the first light-emitting device 102a1 to emit light, in the first direction F1, the current of the driving thin-film transistor T1 in one driving thin-film transistor group closer to the rotation axis 20 is less than the current of the driving thin-film transistor T1 in another driving thin-film transistor group farther from the rotation axis 20. This can alleviate the problem in the above embodiment where, in order to set the first light-emitting devices 102a1 to have different distribution densities, the spacing between the first light-emitting devices 102a1 near the rotation axis 20 is too large, resulting in uneven brightness distribution, which affects the PPI of the display device and the display effect.

[0097] In one embodiment, such as Figure 9 and Figure 10 As shown, the display panel 10 includes an array substrate M20, the array substrate M20 includes an active layer, and the driving thin film transistor T1 includes a channel portion T101 located on the active layer;

[0098] In the first direction F1, the width-to-length ratio of the channel portion T101 of the driving thin film transistor T1 in one of the driving thin film transistor groups near the rotation axis 20 is smaller than the width-to-length ratio of the channel portion T101 of the driving thin film transistor T1 in another driving thin film transistor group away from the rotation axis 20.

[0099] Specifically, such as Figure 9 As shown, the display panel 10 includes an array substrate M20 and a light-emitting layer M10 disposed on the array substrate. The light-emitting layer M10 includes a plurality of first light-emitting devices 102a1. The driving thin-film transistor T1 on the array substrate M20 is connected to its corresponding first light-emitting device 102a1.

[0100] Specifically, the display panel 10 includes a control circuit, which may include a first thin-film transistor, a second thin-film transistor, a third thin-film transistor, and a storage capacitor. The first thin-film transistor is a driving thin-film transistor T1, the second thin-film transistor is a switching thin-film transistor, and the third thin-film transistor is a detection thin-film transistor. The first thin-film transistor controls the brightness of the first light-emitting device 102a1.

[0101] Specifically, the width of the channel portion T101 is as follows: Figure 10 As shown in the figure, W represents the relative length between the source T104 and the drain T103; the length of the channel T101 is as follows: Figure 10 As shown in L, this is the spacing between the source T104 and the drain T103;

[0102] Specifically, the voltage connected to each of the driving thin-film transistors T1 is the same.

[0103] Specifically, such as Figure 9 As shown, the driving thin-film transistor T1 includes at least a gate T102, a source T104, a drain T103, and an active layer. The active layer includes a channel portion T101 distributed between the source T104 and the drain T103. The width-to-length ratio of the channel portion T101 is reduced, and the on-state current of the driving thin-film transistor T1 will decrease accordingly.

[0104] Specifically, the driving thin-film transistor T1 is a low-temperature polycrystalline silicon thin-film transistor, an oxide semiconductor thin-film transistor, or an amorphous silicon thin-film transistor.

[0105] The gate of the second thin-film transistor is electrically connected to the scan voltage signal line, the source is electrically connected to the data voltage signal line, and the drain is electrically connected to the gate T102 of the first thin-film transistor and one end of the storage capacitor. The source T104 of the first thin-film transistor is electrically connected to the positive voltage of the power supply, and the drain T103 is electrically connected to the anode of the light-emitting device. The cathode of the first light-emitting device 102a1 is electrically connected to the negative voltage of the power supply. One end of the storage capacitor Cst is electrically connected to the drain of the second thin-film transistor and the gate T102 of the first thin-film transistor, and the other end of the storage capacitor Cst is electrically connected to the drain T103 of the first thin-film transistor, the anode of the first light-emitting device 102a1, and the source of the third thin-film transistor. The gate of the third thin-film transistor is electrically connected to the data signal, the source is electrically connected to the drain T103 of the first thin-film transistor, the drain of the third thin-film transistor is connected to the detection voltage, and the drain of the third thin-film transistor is connected to the detection voltage (VCM), which is a constant voltage.

[0106] During the reset period of the first light-emitting device 102a1 controlled by the control circuit, the scan voltage and data of the control circuit are applied to the gate and source T104 of the second thin-film transistor in the control circuit, respectively. During the data writing period of each control circuit, the third switching thin-film transistor in the control circuit is turned on to apply the data voltage to the drain T103 of the first thin-film transistor. During the light-emitting period of the first light-emitting device 102a1 controlled by the control circuit, the first thin-film transistor is turned on, so that the first light-emitting device 102a1 connected to the drain T103 of the first thin-film transistor emits light.

[0107] In one embodiment, the array substrate M20 includes a substrate M201 and a driving device layer M202 disposed on the substrate M201, wherein the substrate M201 is made of a transparent material.

[0108] Specifically, the substrate M201 can be made of transparent glass, polyimide, etc.

[0109] Specifically, the driving device layer M202 includes a plurality of driving thin-film transistors T1. The driving device layer M202 includes multiple insulating layers stacked together, an active layer, a gate layer, and a source-drain layer disposed between each of the insulating layers. The active layer includes a channel portion T101, and source and drain connection portions disposed on both sides of the channel portion T101. The source connection portion is connected to the source T104, and the drain connection portion is connected to the drain T103. The gate T102 on the gate layer is disposed above or below the channel portion T101. Figure 10 (below), and its projection in the direction perpendicular to the array substrate M20 covers the channel portion T101.

[0110] It is understandable that by setting the substrate M201 of the driving device layer M202 to be made of a transparent material, the display device has higher transparency, making the picture displayed by the three-dimensional display device more realistic and improving the user experience.

[0111] In summary, by setting the display panel 10 to rotate around a rotation axis 20, the display panel 10 includes a plurality of spaced-apart first light-emitting devices 102a1. The distance between each group of first light-emitting devices 101a1 and the rotation axis 20 is within a preset distance S. Each group of first light-emitting devices 101a1 includes at least two first light-emitting devices 102a1. The plurality of groups of first light-emitting devices 101a1 are arranged sequentially along a first direction F1. In the first direction F1, the distribution density of first light-emitting devices 102a1 in a group of first light-emitting devices 101a1 closer to the rotation axis 20 is less than that in another group of first light-emitting devices farther from the rotation axis 20. The distribution density of the first light-emitting device 102a1 within component group 101a1 is reduced by decreasing the indexing density of the first light-emitting device 102a1 near the rotation axis 20. This ensures that, during 3D display, the brightness of the first light-emitting device 102a1 near the rotation axis 20 within a preset range is consistent with the brightness of the first light-emitting device 102a1 outside the preset range. This solves the problem of uneven brightness of the display device as a whole caused by the different rotation linear speeds of the first light-emitting devices 102a1 at different positions on the display panel 10, further improving the uniformity of the display brightness of the 3D stereoscopic display device.

[0112] The above provides a detailed description of a display device 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 device, characterized in that, include: At least one display panel, the display panel being rotatable about a rotation axis, the display panel including a plurality of first light-emitting device groups arranged in a first direction, the first light-emitting device group including a plurality of first light-emitting devices, the first direction being perpendicular to the rotation axis, and the first direction pointing from the rotation axis to the side of the display panel away from the rotation axis; Wherein, the distance between each of the first light-emitting device groups and the rotation axis is within a preset distance range, and the distribution density of each of the first light-emitting devices in a first light-emitting device group closer to the rotation axis is less than the distribution density of each of the first light-emitting devices in another first light-emitting device group farther away from the rotation axis. In regions where the distance between the first light-emitting device and the rotation axis is outside the preset distance range, the distribution density of the first light-emitting device is equal everywhere.

2. The display device as claimed in claim 1, characterized in that, The first light-emitting device group includes a plurality of first subgroups arranged along a first direction, and each first subgroup includes a plurality of first light-emitting devices arranged along a second direction, the second direction being parallel to the rotation axis; The distribution density of the first light-emitting devices is the same in at least one of the first subgroups within the first light-emitting device group.

3. The display device as claimed in claim 2, characterized in that, Multiple first light-emitting devices located within the same first subgroup are evenly spaced along the second direction.

4. The display device as claimed in claim 2, characterized in that, In any two adjacent first subgroups, the first light-emitting devices in one first subgroup and the first light-emitting devices in the other first subgroup are staggered along the second direction.

5. The display device as claimed in claim 2, characterized in that, A first light-emitting device group includes at least two first subgroups arranged along the first direction, wherein in any two first light-emitting device groups, the spacing between each first subgroup in one first light-emitting device group is equal to the spacing between each first subgroup in the other first light-emitting device group.

6. The display device as claimed in claim 1, characterized in that, The display panel includes a first display portion and a second display portion located on opposite sides of the rotation axis, a plurality of first light-emitting device groups located in the first display portion, and the second display portion includes a plurality of second light-emitting device groups arranged along the first direction, the second light-emitting device groups including a plurality of second light-emitting devices; In the first light-emitting device group and the second light-emitting device group, which are at the same length from the rotation axis, the rotation paths of the plurality of first light-emitting devices in the first light-emitting device group and the plurality of second light-emitting devices in the second light-emitting device group do not overlap.

7. The display device as claimed in claim 6, characterized in that, The distance from the side of the first display unit away from the rotation axis to the rotation axis is equal to the distance from the side of the second display unit away from the rotation axis to the rotation axis.

8. The display device as claimed in claim 1, characterized in that, The display panel includes a plurality of driving thin-film transistors, and one of the driving thin-film transistors is connected to a first light-emitting device. When the first light-emitting device emits light, the current in the driving thin-film transistor connected to the first light-emitting device that is closer to the rotation axis is less than the current in the driving thin-film transistor connected to the first light-emitting device that is farther away from the rotation axis.

9. The display device as claimed in claim 8, characterized in that, In the first direction, the width-to-length ratio of the channel portion of the driving thin-film transistor connected to one of the first light-emitting devices near the rotation axis is smaller than the width-to-length ratio of the channel portion of the driving thin-film transistor connected to the other first light-emitting device far from the rotation axis.

10. The display device as claimed in claim 1, characterized in that, The display panel includes a substrate, and the substrate is made of a transparent material.

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