Display panel and display device

Abstract

The invention provides a display panel and a display device, belongs to the technical field of display, and aims at solving the problem that the dark state of the display panel is uneven, the display panel comprises a first substrate and a second substrate which are oppositely arranged; the plurality of spacers are positioned between the first substrate and the second substrate; wherein the plurality of spacers comprise a first spacer, a second spacer and a third spacer; the first size of the first spacer in the target direction is larger than the second size of the second spacer in the target direction, and the third size of the third spacer in the target direction is larger than the first size; the target direction is a vertical direction from the first substrate to the second substrate.

Description

Technical Field

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

[0002] In the production process of LCD (liquid crystal display), spacers are generally used for support to maintain the uniformity of the cell thickness so that the light output is uniform.

[0003] However, in the related art, when the LCD is subjected to external force, there is still a DNU (Dark Not Uniformity) problem. Summary of the invention

[0004] Based on the background technology, the present disclosure proposes a display panel and a display device.

[0005] In a first aspect of the present disclosure, a display panel is provided, comprising:

[0006] A first substrate and a second substrate arranged opposite to each other;

[0007] A plurality of spacers are located between the first substrate and the second substrate;

[0008] Wherein, the plurality of spacers include a first spacer, a second spacer and a third spacer;

[0009] A first size of the first spacer in the target direction is larger than a second size of the second spacer in the target direction, and a third size of the third spacer in the target direction is larger than the first size;

[0010] The target direction is a vertical direction from the first substrate to the second substrate.

[0011] Optionally, the difference between the first size and the second size is less than or equal to the maximum deformation of the first spacer;

[0012] A difference between the third size and the first size is less than or equal to a maximum deformation amount of the third spacer.

[0013] Optionally, a plurality of the first spacers and a plurality of the second spacers are arranged alternately.

[0014] Optionally, the second spacers are distributed around each of the first spacers.

[0015] Optionally, the distances between the first spacer and a plurality of adjacent second spacers are equal.

[0016] Optionally, the number of the first spacers and the number of the second spacers are greater than the number of the third spacers.

[0017] Optionally, a plurality of the third spacers are arranged periodically, and in one arrangement period of the third spacers, a plurality of the first spacers and a plurality of the second spacers are dispersed.

[0018] Optionally, it further comprises a plurality of pixel units, wherein the pixel units comprise a plurality of sub-pixels, and all the sub-pixels comprised by the plurality of pixel units are arranged in an array;

[0019] The number of sub-pixel columns spaced between adjacent first spacers and second spacers is less than or equal to the number of sub-pixels included in one pixel unit.

[0020] Optionally, the pixel unit includes a plurality of sub-pixels emitting light of different colors, wherein the first spacer is located between a first sub-pixel column emitting blue light and a second sub-pixel column adjacent to the first sub-pixel column emitting green light;

[0021] And / or, the second spacer is located between the first sub-pixel column and the second sub-pixel column.

[0022] A second aspect of the present disclosure provides a display device, comprising the display panel as described in the first aspect.

[0023] The display panel provided by the present disclosure includes: a first substrate and a second substrate arranged opposite to each other; a plurality of spacers located between the first substrate and the second substrate; wherein the plurality of spacers include a first spacer, a second spacer and a third spacer; a first dimension of the first spacer in a target direction is greater than a second dimension of the second spacer in the target direction, and a third dimension of the third spacer in the target direction is greater than the first dimension; the target direction is a vertical direction from the first substrate to the second substrate;

[0024] Therefore, the present invention provides a first spacer, a second spacer and a third spacer on the first substrate and the second substrate, and the height of the third spacer is greater than that of the first spacer, and the height of the first spacer is greater than that of the second spacer, so that when the display panel is subjected to external pressure, the first spacer assists the third spacer for support, and when the external pressure increases, the second spacer assists the first spacer for support, thereby improving the support of the display panel, so that the display panel can maintain a uniform box thickness when subjected to external pressure, thereby improving the dark state unevenness problem of the display panel.

[0025] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the proportions in the drawings are only for illustration and do not represent the actual proportions.

[0027] Figure 1 A schematic diagram of the box thickness of different areas of a liquid crystal display screen when receiving external force in the related art is shown;

[0028] Figure 2 A schematic diagram showing the mechanism of DNU generation in a display panel;

[0029] Figure 3 A cross-sectional view of a display panel in an embodiment of the present disclosure is shown;

[0030] Figure 4 shows a cross-sectional view of a display panel in yet another embodiment of the present disclosure;

[0031] Figure 5 A top view of a display panel in an embodiment of the present disclosure is shown;

[0032] Figure 6 A top view of a display panel in another embodiment of the present disclosure is shown;

[0033] Explanation of the reference numerals: 1. first substrate; 2. second substrate; 3. spacer; 31. first spacer; 32. second spacer; 33. third spacer; 4. pixel unit; 51. first sub-pixel column; 52. second sub-pixel column. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0035] In the related art, the display panel is prone to DNU problem, which specifically refers to the Mura phenomenon that the display panel surface naturally presents uneven brightness under the L0 screen, i.e., black screen. Touch DNU is the phenomenon that when the palm of the hand is rubbed on the surface of the display panel under the L0 screen, strip-shaped or band-shaped Mura is formed around the force track and is difficult to recover. Figure 1 and Figure 2 , Figure 1 A schematic diagram of the box thickness in different areas of the LCD screen when subjected to external force is shown. Figure 2 The mechanism of DNU generation is shown, as Figure 1 and Figure 2 As shown, when the display panel is not subjected to external force, the glass of the display panel is isotropic, and the light is incident from the array substrate and then emitted after passing through the liquid crystal and the color filter substrate, and the emitted light has no phase difference; when the display panel is subjected to external force, the area near the external force contact area, such as the area where the external force is applied in area A, and area B is the area near area A. At this time, the glass in area B is subjected to pressure due to the external force and generates stress. At this time, the spacer is in a compressed state, and the force resisting deformation generated by it is easy to cause it to slide and cannot support the box thickness between the two substrates in area B. At this time, the positions of the array substrate and the color filter substrate are easy to form an optical axis. When the propagation direction of the light is at an angle with the optical axis, a phase difference is generated. According to the glass photoelastic theory, the phase difference generated by glass stress deformation = SOC*T*<Σ>. SOC: glass photoelastic coefficient, related to the material of the glass; T: glass thickness; Σ: glass stress. From the above, it can be seen that the larger the glass photoelastic coefficient, the thicker the glass, the greater the stress, the greater the glass phase difference, and the heavier the light leakage.

[0036] In view of this, the embodiments of the present disclosure provide a display panel and a display device. By arranging a variety of different spacers on a color film substrate or an array substrate, the height gradient of the multiple spacers is set, so that when the display panel is subjected to external force and causes the higher spacers to shift, the lower spacers can continue to play the role of supporting the box thickness, thereby improving the DNU problem of the display panel.

[0037] Reference Figure 3 , Figure 3 FIG. 4 shows a schematic diagram of the structure of a display panel provided by an embodiment of the present disclosure. Figure 3 As shown, the display panel specifically includes:

[0038] A first substrate 1 and a second substrate 2 arranged opposite to each other;

[0039] A plurality of spacers 3 are located between the first substrate 1 and the second substrate 2;

[0040] The multiple spacers 3 include a first spacer 31, a second spacer 32 and a third spacer 33;

[0041] A first dimension of the first spacer 31 in the target direction is greater than a second dimension of the second spacer 32 in the target direction, and a third dimension of the third spacer 33 in the target direction is greater than the first dimension;

[0042] The target direction is a vertical direction from the first substrate 1 to the second substrate 2 .

[0043] In this embodiment, the display panel is a liquid crystal display panel, wherein the first substrate 1 may be a color filter substrate, the color filter substrate includes a pixel layer, an indium tin oxide layer, a black matrix, etc., the second substrate 2 may be an array substrate, the array substrate includes a gate line, a data line, a pixel electrode, a thin film transistor, etc., liquid crystal is filled between the first substrate 1 and the second substrate 2, and a spacer is arranged between the first substrate 1 and the second substrate 2 to ensure the space filled with liquid crystal, wherein a plurality of spacers 3 may be located on the side of the first substrate 1 close to the second substrate 2, or on the side of the second substrate 2 close to the first substrate 1. For example, the first spacer 31, the second spacer 32, and the third spacer 33 may all be located on the first substrate 1, or the first spacer 31, the second spacer 32, and the third spacer 33 may all be located on the second substrate 2, or the first spacer 31 and the second spacer 32 may be located on the first substrate 1, and the third spacer 33 may be located on the second substrate 2, or the first spacer 31 may be located on the first substrate 1, and the second spacer 31 and the third spacer 33 may be located on the second substrate 2, etc.

[0044] In one example, if Figure 3 As shown, the first spacer 31 , the second spacer 32 and the third spacer 33 are all located on the side of the first substrate 1 facing the second substrate 2 , the third spacer 33 overlaps the second substrate 2 , and there is a gap between the first spacer 31 , the second spacer 32 and the second substrate 2 .

[0045] In another example, referring to Figure 4 , Figure 4 A cross-sectional view of a display panel provided by another embodiment of the present disclosure is shown. Figure 4 As shown, the first spacer 31 , the second spacer 32 and the third spacer 33 are all located on the side of the second substrate 2 facing the first substrate 1 , the third spacer 33 overlaps the first substrate 1 , and there is a gap between the first spacer 31 , the second spacer 32 and the first substrate 1 .

[0046] Among them, the number of the third spacers 33 can be less than the number of the first spacers 31 and the second spacers 32. At this time, the third spacers 33 are main spacers, and the first spacers 31 and the second spacers 32 are both auxiliary spacers. Then the first spacers 31 and the second spacers 32 can be arranged between the plurality of third spacers 33, so that the positions between the third spacers 33 are supported by the first spacers 31 and the second spacers 32, thereby improving the uniformity of the cell thickness of the display panel. In addition, the heights of the first spacers 31, the second spacers 32 and the third spacers 33 are all different. In this way, when the display panel is subjected to external pressure, it can be supported by the first spacer 31 first, and when the external pressure is strengthened, it can be supported by the second spacer 32. By improving the support between the first substrate 1 and the second substrate 2, when the display panel is subjected to external pressure, the cell thickness of the liquid crystal cell can still maintain uniformity.

[0047] Specifically, Figure 3 or Figure 4 For example, the direction of the z-axis is the target direction, the first size is the size of the first spacer 31 in the z-axis direction, the second size is the size of the second spacer 32 in the z-axis direction, and the third size is the size of the third spacer 33 in the z-axis direction. Figure 3 As shown, the third size is larger than the first size, and the first size is larger than the second size. Therefore, when the display panel is subjected to external pressure, if the third spacer 33 is compressed and deformed, the first spacer 31 can continue to support the box thickness. If the first spacer 31 is also compressed and deformed, the second spacer 32 can continue to support the box thickness, thereby ensuring the uniformity of the box thickness.

[0048] Among them, the first spacers 31 and the second spacers 32 can be arranged alternately between multiple third spacers 33 to ensure that auxiliary spacers of different heights are arranged near each main spacer. This allows the auxiliary spacers to assist the main spacers in supporting each area of ​​the display panel when the display panel is subjected to different pressures. In addition, when the first spacers 31 and the second spacers 32 are arranged alternately, there are second spacers 32 around each first spacer 31. Therefore, when each first spacer 31 is compressed, it is supported by the second spacers 32 around it, thereby improving the dark state unevenness problem of the display panel.

[0049] In one example, second spacers 32 may be disposed around each first spacer 31 , so that when the first spacer 31 is subjected to external pressure, the second spacers 32 are provided on all sides to support it, thereby ensuring that the box thickness of the first spacer 31 is uniform in all directions.

[0050] The display panel provided by the embodiment of the present disclosure is adopted, by arranging a first spacer 31, a second spacer 32 and a third spacer 33 between the first substrate 1 and the second substrate 2, and the height of the third spacer 33 is greater than the height of the first spacer 31, and the height of the first spacer 31 is greater than the height of the second spacer 32. In this way, when the display panel is subjected to external pressure and the third spacer 33 is compressed and not recovered, the first spacer 31 can be used for support, and when the first spacer 31 is also compressed and not recovered, the second spacer 32 can also be used for support, thereby improving the overall support of the display panel, thereby improving the problem of uneven dark state.

[0051] In one embodiment, the difference between the first size and the second size is less than or equal to the maximum deformation of the first spacer 31 ; the difference between the third size and the first size is less than or equal to the maximum deformation of the third spacer 33 .

[0052] In this embodiment, the difference between the first dimension and the second dimension represents the height difference between the first spacer 31 and the second spacer 32. If the height difference is less than or equal to the maximum deformation of the first spacer 31, it means that when the first spacer 31 is compressed to a certain extent, its height is the same as the height of the second spacer 32. If the difference between the first dimension and the second dimension is equal to the maximum deformation of the first spacer 31, then when the first spacer 31 is compressed to the limit, its height is the same as the height of the second spacer 32. Similarly, the difference between the third dimension and the first dimension represents the height difference between the third spacer 33 and the first spacer 31. If the difference between the third dimension and the first dimension is less than or equal to the maximum deformation of the third spacer 33, it means that when the third spacer 33 is compressed to a certain extent, its height is the same as the height of the first spacer 31.

[0053] Specifically, the difference between the third size and the first size is less than or equal to the maximum deformation of the third spacer 33, indicating that the size of the first spacer 31 is similar to that of the third spacer 33 when the third spacer 33 is compressed to the limit. In this case, if the display panel is subjected to external pressure and the third spacer 33 is offset, the first spacer 31 can overlap with the substrate opposite to it and be supported between the first substrate 1 and the second substrate 2 to maintain the uniformity of the thickness of the liquid crystal cell, thereby avoiding uneven light emission caused by the change of the liquid crystal orientation due to the uneven cell thickness. Similarly, the difference between the first size and the second size is similar to that of the first spacer 31 when the third spacer 33 is compressed to the limit. In this case, if the display panel is subjected to external pressure and the third spacer 33 is offset, the first spacer 31 can overlap with the substrate opposite to it and be supported between the first substrate 1 and the second substrate 2 to maintain the uniformity of the thickness of the liquid crystal cell, thereby avoiding uneven light emission caused by the change of the liquid crystal orientation due to the uneven cell thickness. If the difference between the sizes is less than or equal to the maximum deformation of the first spacer 31, it means that the size of the second spacer 32 is close to the size when it is compressed to the limit. In this case, if the first spacer 31 is compressed to a certain extent, the second spacer 32 will overlap with the substrate opposite to it. For example, if the second spacer 32 is located on the first substrate 1, it will overlap with the second substrate 2 when the first spacer 31 is compressed. In this way, even if the external pressure causes the first spacer 31 in some areas of the display panel to be unable to support the box thickness, it can also be supported by the second spacer 32.

[0054] For example, Figure 3 For example, the size of the first spacer 31 in the z-axis direction can be the compression limit value of the size of the third spacer 33 in the z-axis direction. In this way, when the third spacer 33 is compressed to the limit value and does not recover, the first spacer 31 can overlap with the second substrate 2 opposite to it to play a supporting role. Similarly, the size of the second spacer 32 in the x-axis direction can be the compression limit value of the size of the first spacer 31 in the x-axis direction. Therefore, when the second spacer 32 is compressed to the limit value and does not recover, the second spacer 32 can overlap with the second substrate 2 opposite to it to play a supporting role.

[0055] In one embodiment, referring to Figure 5 , Figure 5 FIG. 4 shows a top view of a display panel provided by an embodiment of the present disclosure, as shown in FIG. Figure 5 As shown, a plurality of first spacers 31 and a plurality of second spacers 32 are arranged alternately.

[0056] Among them, the staggered arrangement of multiple first spacers 31 and multiple second spacers 32 can be that multiple first spacers 31 and multiple second spacers 32 are staggered in rows, or that multiple first spacers 31 and multiple second spacers 32 are staggered in columns, or that each row and column are staggered, that is, the second spacer 32 is included between two adjacent first spacers 31 in each row and each column, and the first spacer 31 is also included between two adjacent second spacers 32 in each row and each column. When multiple first spacers 31 and multiple second spacers 32 are arranged alternately in rows or columns, the two second spacers 32 adjacent to each first spacer 31 can support the box thickness when the first spacer 31 is compressed and not recovered; and when multiple first spacers 31 and multiple second spacers 32 are arranged alternately in each row and column, each first spacer 31 includes second spacers 32 in four directions. Therefore, when the second spacers 32 in four directions are offset from the first spacer 31, they can support the box thickness from four different directions, thereby maintaining the uniformity of the box thickness.

[0057] In one example, continue to refer to Figure 5 The second spacers 32 are distributed around each first spacer 31 .

[0058] In this embodiment, a plurality of second spacers 32 are arranged around each first spacer 31, and each second spacer 32 has a different direction relative to the first spacer 31. For example, the second spacers can be arranged in four directions of front, back, left, and right of the first spacer 31, or a plurality of second spacers 32 can form a rectangle centered on the first spacer 31, and each second spacer 32 is located at the vertex of the rectangle. Thus, the first spacer 31 is surrounded by the second spacers 32. In this way, when the first spacer 31 is offset due to external force on the display panel, the second spacers 32 on all sides can provide support, thereby ensuring the uniformity of the box thickness near the first spacer 31, thereby improving the dark state unevenness problem.

[0059] Specifically, Figure 4 For example, the orthographic projections of a plurality of first spacers 31 on the first substrate 1 are evenly arranged, and at least one second spacer 32 is arranged in four directions, namely, up, down, left, and right, in each first spacer 31, so that the second spacers 32 are evenly distributed around each first spacer 31. In this way, when the first spacer 31 is offset due to pressure in the nearby area, the second spacers 32 in the four directions can support the cell thickness, so that the cell thickness in the area where the first spacer 31 is located remains uniform, thereby solving the problem of uneven dark state of the display panel.

[0060] When multiple first spacers 31 and multiple second spacers 32 are arranged in an alternating manner, the distance between each first spacer 31 and the adjacent multiple second spacers 32 may be equal or unequal; when the distance between each first spacer 31 and the adjacent multiple second spacers 32 is unequal, multiple second spacers 32 may be provided in multiple directions adjacent to the first spacer 31, and the uniformity of the box thickness in the area where the first spacers 31 are located is improved by increasing the number of second spacers 32; when the distance between each first spacer 31 and the adjacent multiple second spacers 32 is equal, the multiple first spacers 31 and the multiple second spacers 32 may be arranged at equal intervals to maintain the uniformity of the box thickness.

[0061] In one example, continue to refer to Figure 5 , the distances between the first spacer 31 and the adjacent plurality of second spacers 32 are equal.

[0062] In this embodiment, the multiple second spacers 32 adjacent to the first spacer 31 can be respectively located in different directions of the first spacer 31, and the equal distances between the first spacer 31 and the multiple adjacent second spacers 32 can specifically mean that the distances between the second spacers 32 and the first spacer 31 in different directions are all equal. Specifically, the different directions located in the first spacer 31 can specifically refer to the row direction of the first spacer 31, or the column direction of the first spacer 31, or the diagonal direction of the first spacer 31. Among them, the equal distances between the first spacer 31 and the multiple adjacent second spacers 32 can mean that the distances between the first spacer 31 and the multiple adjacent second spacers 32 are partially equal, or the distances between the first spacer 31 and the multiple adjacent second spacers 32 are all equal.

[0063] For example, if the second spacers 32 are arranged in the four directions of front, back, left, and right of the first spacer 31, then the distances between the first spacer 31 and the adjacent multiple second spacers 32 may be equal, which means the distance between the first spacer 31 and the second spacer 32 located in front of the first spacer 31 is equal to the distance between the first spacer 31 and the second spacer 32 located behind the first spacer 31, or the distance between the first spacer 31 and the second spacer 32 located to the left of the first spacer 31 is equal to the distance between the first spacer 31 and the second spacer 32 located to the right of the first spacer 31. Of course, the distances between the second spacers 32 arranged in the four directions of front, back, left, and right of the first spacer 31 and the first spacer 31 may be equal.

[0064] Among them, multiple second spacers 32 adjacent to the first spacer 31 can form a spacer group, each spacer group is located in a different direction of the first spacer 31, that is, each direction of the first spacer 31 includes multiple second spacers 32, so that the distance between the first spacer 31 and the adjacent multiple second spacers 31 is equal. Specifically, the distance between the first spacer 31 and the adjacent spacer groups in each direction is equal, and the multiple second spacers 32 in the spacer group are evenly spaced.

[0065] When the distances between the first spacer 31 and the adjacent multiple second spacers 32 are equal, the second spacers 32 are evenly supported on all sides of the first spacer 31. Since the supporting positions of the second spacers 32 on all sides are the same, the box thickness of the first spacer 32 in all directions is consistent, providing uniformity in the box thickness and improving the dark state unevenness problem of the display panel.

[0066] It should be noted that, in this example, the distance between the first spacer 31 and the adjacent multiple second spacers 32 is equal. The distance between the first spacer 31 and the adjacent multiple second spacers 32 can be completely equal, or the difference in the distance between the first spacer 31 and the adjacent multiple second spacers 32 can be within a certain range. Specifically, the difference in the distance between the first spacer 31 and the adjacent multiple second spacers 32 can be smaller than the size of a sub-pixel.

[0067] For any of the above embodiments, the number of the first spacers 31 and the number of the second spacers 32 are greater than the number of the third spacers 33 .

[0068] In this embodiment, the third spacer 33 is a main spacer, and the first spacer 31 and the second spacer 32 are auxiliary spacers. When the number of first spacers 31 and the number of second spacers 32 are greater than the number of third spacers 33, multiple first spacers 31 and multiple second spacers 32 can be distributed between the third spacers 33, so that multiple auxiliary spacers can be provided to support the main spacers, wherein the number of first spacers 32 can be equal to the number of second spacers 32, and the number of first spacers 32 can also be less than the number of second spacers 32.

[0069] When the number of first spacers 31 is equal to the number of second spacers 32, multiple first spacers 31 and multiple second spacers 32 are arranged in an alternating manner so that a second spacer 32 is included between two adjacent first spacers 31, which enables the display panel to form two step differences, thereby improving the safety range of the display screen liquid crystal and the support of the display panel; when the number of first spacers 31 is less than the number of second spacers 32, multiple second spacers 32 can be distributed around each first spacer 31, so that when the first spacer 31 is offset due to compression by external pressure, the second spacers 32 can provide support around the first spacer 31, thereby improving the uniformity of the box thickness and improving the dark state unevenness problem.

[0070] In one embodiment, referring to Figure 6 , Figure 6 A schematic diagram of a display panel provided by another embodiment of the present disclosure is shown. Figure 6 As shown, a plurality of third spacers 33 are arranged periodically, and in one arrangement period of the third spacers 33 , a plurality of first spacers 31 and a plurality of second spacers 32 are dispersed.

[0071] In this embodiment, the periodic arrangement of the plurality of third spacers 33 may be that the plurality of third spacers 33 form a rectangle and are periodically arranged with the rectangle as one period, or that the plurality of third spacers 33 form a rhombus and are periodically arranged with the rhombus as one period, or of course, that the plurality of third spacers 33 form a circle and are periodically arranged with the circle as one period. Figure 5 For example, a plurality of spacers 33 are arranged in a rectangular periodic pattern, wherein region S is a rectangular period, and within the period, a plurality of first spacers 31 and a plurality of second spacers 32 are disposed between every two third spacers 33 .

[0072] Among them, between the two third spacers 33, multiple first spacers 31 and multiple second spacers 32 can be arranged alternately, so that the two third spacers 33 can be supported by the first spacers 31 and the second spacers 32, so that the first spacers 31 and the second spacers 32 can cover the area between the two third spacers 33, then when any area of ​​the display panel is subjected to external pressure, the spacers can support the box thickness, improve the support of the display panel, and improve the problem of dark state unevenness.

[0073] In one embodiment, continue to refer to Figure 5 The display panel further includes: a plurality of pixel units 4, the pixel units 4 include a plurality of sub-pixels, and all sub-pixels included in the plurality of pixel units 4 are arranged in an array;

[0074] The number of sub-pixel columns spaced between adjacent first spacers 31 and second spacers 32 is less than or equal to the number of sub-pixels in one pixel unit 4 .

[0075] In this embodiment, the multiple sub-pixels included in the pixel unit 4 emit light of different colors respectively, and the pixel unit 4 includes three adjacent sub-pixels, and the three sub-pixels emit light of different colors respectively, wherein multiple spacers, namely the first spacer 31, the second spacer 32 and the third spacer 33, are located between the multiple sub-pixels to prevent the spacers from affecting the light emission of the pixel unit 4. Since the multiple sub-pixels are arranged in an array, sub-pixel columns can be spaced between adjacent first spacers 31 and second spacers 32 so that multiple sub-pixels are spaced between each first spacer 31 and the second spacer 32 adjacent thereto. Among them, the number of sub-pixel columns spaced between adjacent first spacers 31 and second spacers 32 can be less than the number of sub-pixels in one pixel unit 4, or the number of sub-pixel columns spaced between adjacent first spacers 31 and second spacers 32 can be equal to the number of sub-pixels in one pixel unit 4.

[0076] Specifically, when the number of sub-pixel columns spaced between adjacent first spacers 31 and second spacers 32 is less than the number of sub-pixels in a pixel unit 4, a first spacer 31 or a second spacer 32 is included between every two adjacent sub-pixels in a pixel unit 4, and the overall support is improved by the dense arrangement of the first spacers 31 and the second spacers 32; when the number of sub-pixel columns spaced between adjacent first spacers 31 and second spacers 32 is equal to the number of sub-pixels in a pixel unit 4, a first spacer 31 or a second spacer 32 may be included between multiple adjacent sub-pixels in each pixel unit 4, so that the surface pressure capacity of the display panel can be improved while ensuring the support.

[0077] In one embodiment, continue to refer to Figure 5 The pixel unit 4 includes a plurality of sub-pixels emitting light of different colors, wherein the first spacer 31 is located between a first sub-pixel column 51 emitting blue light and a second sub-pixel column 52 adjacent to the first sub-pixel column 51 emitting green light;

[0078] And / or, the second spacer 32 is located between the first sub-pixel column 51 and the second sub-pixel column 52 .

[0079] Specifically, Figure 5For example, the pixel unit 4 includes a red sub-pixel R emitting red light, a green sub-pixel G emitting green light, and a blue sub-pixel B emitting blue light; wherein, a plurality of sub-pixels are arranged in an array, and the display panel may include a plurality of sub-pixel columns, and the color of light emitted by each column of sub-pixels is the same, that is, including a red sub-pixel column emitting red light, a green sub-pixel column emitting green light, and a blue sub-pixel column emitting blue light, and the spacer may be located between the plurality of sub-pixel columns.

[0080] The first spacer 31 may be located between the first sub-pixel column 51 emitting blue light and the second sub-pixel column 52 adjacent to the first sub-pixel column 51 emitting green light; the second spacer 32 may be located between the first sub-pixel column 51 emitting blue light and the second sub-pixel column 52 adjacent to the first sub-pixel column 51 emitting green light; or both the first spacer 31 and the second spacer 32 may be located between the first sub-pixel column 51 emitting blue light and the second sub-pixel column 52 adjacent to the first sub-pixel column 51 emitting green light.

[0081] Specifically, since the human eye is less sensitive to blue images, it is set near the blue sub-pixel, and since the green sub-pixel contributes more to the contrast of the image, setting a spacer near the green sub-pixel is beneficial to improving the visual effect, so the first spacer 31 or the second spacer 32 can be set between the first sub-pixel column 51 emitting blue light and the second sub-pixel column 52 emitting green light, so as to improve the visual effect of the display panel while maintaining the uniformity of the box thickness. Among them, when the number of sub-pixel columns spaced between adjacent first spacers 31 and second spacers 32 is equal to the total number of sub-pixels in the pixel unit 4, the first spacer 31 and the second spacer 32 can be both located between the first sub-pixel column 51 emitting blue light and the second sub-pixel column 52 emitting green light. At this time, multiple first spacers 31 and multiple second spacers 32 can be both located between the first sub-pixel column 51 and the second sub-pixel column 52, thereby improving the overall visual effect of the display panel. Of course, the third spacer 33 may also be located between the first sub-pixel column 51 and the second sub-pixel column 52 , that is, the first spacer 31 , the second spacer 32 and the third spacer 33 are all located between the first sub-pixel column 51 and the second sub-pixel column 52 .

[0082] For the first spacer 31 and the second spacer 32 of any of the above embodiments, a double sub PS halftone mask design can be used when designing the mask to achieve one-time production of two spacers with different plant heights, namely the first spacer 31 and the second spacer 32, thereby improving the production efficiency of the display panel.

[0083] The display panel provided by the embodiment of the present disclosure is provided with a first spacer 31, a second spacer 32 and a third spacer 33 of different heights, and the difference between the first size of the first spacer 31 and the second size of the second spacer 32 is less than or equal to the maximum deformation of the first spacer 31, the difference between the third size of the third spacer 33 and the first size is less than or equal to the maximum deformation of the third spacer 33, and a plurality of first spacers 31 and a plurality of second spacers 32 are alternately arranged between two adjacent third spacers 33. In this way, when the third spacer 33 is offset due to external pressure, the first spacer 31 can support the thickness of the liquid crystal box, and when the first spacer 31 is also offset due to external pressure, the second spacer 32 can support the thickness of the liquid crystal box, thereby improving the uniformity of the box thickness and improving the problem of dark state unevenness; at the same time, since the second spacers 32 are distributed around each first spacer 31, and the distances between the first spacer 31 and the second spacers 32 around it are equal, the uniformity of support is improved, thereby making the box thickness more uniform.

[0084] The display panel provided by the embodiment of the present disclosure is specifically introduced below with reference to a specific example:

[0085] Reference Figure 5 and Figure 6 A first spacer 31, a second spacer 32 and a third spacer 33 are arranged between the first substrate 1 and the second substrate 2 of the display panel, wherein the plurality of third spacers 33 are arranged in a rectangular array period, and in each array arrangement period, two adjacent third spacers 33 include a plurality of first spacers and a plurality of second spacers. The arrangement of the plurality of first spacers 31 and the plurality of second spacers 32 is as follows: Figure 4 As shown, each first spacer 31 is provided with a second spacer 32 in four directions of front, back, left and right, and the distance between the second spacer 32 located in front of the first spacer 31 and the first spacer is equal to the distance between the second spacer 32 located behind the first spacer and the first spacer; the distance between the second spacer 32 located on the left of the first spacer 31 and the first spacer 31 is equal to the distance between the second spacer 32 located on the right of the first spacer 31 and the first spacer 31.

[0086] When the display panel is subjected to external force, the third spacer 33 is compressed first. At this time, the glass near the compressed area is warped due to external stress. At this time, the third spacer 33 at the warped position is prone to slip due to the force resisting deformation, resulting in its inability to support the box thickness. Since the difference in height between the third spacer 33 and the first spacer 31 is less than the maximum deformation of the third spacer 33, it can contact the relative substrate when the third spacer 33 is compressed. Then, the first spacer 31 located near the third spacer 33 that slips can play a role in supporting the box thickness. If the external force increases and the first spacer 31 is also completely compressed, the nearby first spacer 31 will also be offset. At this time, the second spacer 32 overlaps the relative substrate, and the second spacer 32 near the offset first spacer 31 can support the box thickness, thereby improving the dark state unevenness problem of the display panel.

[0087] Based on the same inventive concept, an embodiment of the present disclosure further provides a display device, comprising the display panel provided by any of the above embodiments.

[0088] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0089] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0090] The display panel and display device provided by the present disclosure are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present disclosure. The description of the above embodiments is only used to help understand the method and core idea of ​​the present disclosure. At the same time, for those skilled in the art, according to the idea of ​​the present disclosure, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present disclosure.

[0091] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0092] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0093] References herein to "one embodiment," "embodiment," or "one or more embodiments" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present disclosure. In addition, please note that examples of the term "in one embodiment" herein do not necessarily all refer to the same embodiment.

[0094] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present disclosure can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0095] In the claims, any reference signs placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present disclosure may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A display panel, characterized in that: include: A first substrate and a second substrate arranged opposite to each other; A plurality of spacers are located between the first substrate and the second substrate; Wherein, the plurality of spacers include a first spacer, a second spacer and a third spacer; A first size of the first spacer in the target direction is larger than a second size of the second spacer in the target direction, and a third size of the third spacer in the target direction is larger than the first size; The target direction is a vertical direction from the first substrate to the second substrate.

2. The display panel according to claim 1, characterized in that: The difference between the first size and the second size is less than or equal to the maximum deformation of the first spacer; A difference between the third size and the first size is less than or equal to a maximum deformation amount of the third spacer.

3. The display panel according to claim 1, characterized in that: A plurality of the first spacers and a plurality of the second spacers are arranged alternately.

4. The display panel according to claim 3, characterized in that: The second spacers are distributed around each of the first spacers.

5. The display panel according to claim 3, characterized in that: The distances between the first spacer and the adjacent second spacers are equal.

6. The display panel according to claim 1, characterized in that: The number of the first spacers and the number of the second spacers are greater than the number of the third spacers.

7. The display panel according to claim 1, characterized in that: A plurality of the third spacers are arranged periodically, and in one arrangement period of the third spacers, a plurality of the first spacers and a plurality of the second spacers are dispersed.

8. The display panel according to claim 1, characterized in that: Also included are a plurality of pixel units, each of which includes a plurality of sub-pixels, and all of the sub-pixels included in the plurality of pixel units are arranged in an array; The number of sub-pixel columns spaced between adjacent first spacers and second spacers is less than or equal to the number of sub-pixels included in one pixel unit.

9. The display panel according to claim 8, characterized in that: The pixel unit includes a plurality of sub-pixels emitting light of different colors, wherein the first spacer is located between a first sub-pixel column emitting blue light and a second sub-pixel column adjacent to the first sub-pixel column emitting green light; And / or, the second spacer is located between the first sub-pixel column and the second sub-pixel column.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

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