Display panel and display device

By using the combination of main support column, auxiliary support column and electromorphic deformation components in the display panel, the supportability is adjusted according to the brightness requirements, and the support contradiction of the display panel in high and low brightness pictures is solved, and brightness uniformity and contrast are achieved. promote.

CN116047816BActive Publication Date: 2025-01-14XIAMEN TIANMA MICRO ELECTRONICS
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Patent Information

Application Number
CN202310064446.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-28
Publication Date
2025-01-14
Estimated Expiration
2043-01-28

AI Technical Summary

Technical Problem

The support requirements of the display panel are inconsistent when displaying high-brightness and low-brightness pictures. Increasing the number of support columns will lead to light leakage and contrast reduction, while reducing support columns will affect brightness uniformity.

Method used

The display panel design includes the main support column and the auxiliary support column. Combined with the electromorphic deformation components, the height of the electromorphic deformation components can be varied in the direction of the vertical display panel, and the supportability is adjusted according to the brightness requirements to avoid sliding and light leakage of the support column.

Benefits of technology

Provide good support and uniform light transmittance in high-brightness pictures, reduce support when low-brightness pictures, avoid light leakage and uneven display, and maintain contrast and brightness uniformity.

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Abstract

The present invention provides a display panel and a display device, wherein the display panel comprises an array substrate and a color film substrate arranged opposite to each other, and a liquid crystal layer located between the array substrate and the color film substrate; a plurality of first support columns arranged on one side of the array substrate and / or the color film substrate, the first support columns comprising a main support column and an auxiliary support column, and the height of the main support column is greater than the height of the auxiliary support column in the direction perpendicular to the plane where the display panel is located; and a plurality of electro-deformable components, wherein the electro-deformable components are arranged on one side of the array substrate and / or the color film substrate. The present invention can ensure that the display panel has good support when displaying a higher brightness picture, and reduce the phenomenon of uneven display such as light leakage caused by pressing due to sliding of the support components when displaying a lower brightness picture.
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Description

Technical Field

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

[0002] As people's demand for the size of terminal display panels gradually increases, higher requirements are also placed on the support of display panels. To improve the support of display panels, it is necessary to increase the support columns in the liquid crystal display panel, such as increasing the number of support columns, or increasing the area size of a single support column. However, increasing the area size of a single support column may sacrifice the opening size of some pixel units, causing the brightness of the display panel to decrease, and dark spots are easily formed in the area where a single support column is located, affecting the display effect. Therefore, increasing the number of support columns becomes the first choice.

[0003] However, the inventors have discovered that when the display panel is displaying a relatively low-brightness image, such as a black image, if the display panel is pressed, one end of the support column will slide relative to the other end, thereby affecting the liquid crystal molecules near the support column to rotate slightly, causing light leakage to occur. Furthermore, when the pressing force is large, due to the large friction force generated at one end of the support column, the tilt of the support column is difficult to recover, and the liquid crystal molecules near the support column remain in an abnormal state, resulting in the inability to recover the light leakage. Therefore, when the number of support columns of the display panel increases, the probability of light leakage in this part will also greatly increase, resulting in an increase in the degree of light leakage when displaying relatively low-brightness images, greatly reducing the contrast, and light leakage occurs in local areas, resulting in uneven display.

[0004] If dark state light leakage is avoided and the number of support pillars is limited, then when the display panel displays a higher brightness image, the support performance will decrease, the box thickness of the LCD panel will be uneven, and the box thickness in some areas will be low, affecting the brightness of the display panel. At this time, the contrast will also be reduced and uneven display will occur.

[0005] Therefore, when the display panel displays a higher brightness image, it requires sufficient supporting components to obtain better supporting characteristics so that the display panel meets the brightness requirements. However, when displaying a lower brightness image, it is necessary to reduce the supporting components to avoid phenomena such as pressure leakage. There is a contradiction between the above two aspects in the demand for the number of supporting components. Summary of the invention

[0006] In view of this, embodiments of the present invention provide a display panel and a display device, which can ensure that the display panel has good support when displaying higher brightness images, and reduce the phenomenon of uneven display such as pressing light leakage caused by sliding of the supporting components when displaying lower brightness images.

[0007] In a first aspect, the present application provides a display panel, comprising:

[0008] An array substrate and a color filter substrate arranged opposite to each other, and a liquid crystal layer located between the array substrate and the color filter substrate;

[0009] A plurality of first support columns, wherein the first support columns are arranged on one side of the array substrate and / or the color film substrate, and the first support columns include a main support column and an auxiliary support column, and in a direction perpendicular to the plane where the display panel is located, the height of the main support column is greater than the height of the auxiliary support column;

[0010] A plurality of electro-deformable components are arranged on one side of the array substrate and / or the color filter substrate.

[0011] In a second aspect, the present application provides a display device, which includes the display panel.

[0012] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0013] The present application provides a display panel and a display device, wherein the display panel includes a plurality of first support columns and a plurality of electro-deformable components, wherein the first support columns include a main support column and an auxiliary support column, wherein the first support columns and the electro-deformable components are both arranged on one side of an array substrate and / or a color film substrate, wherein the height of the plurality of electro-deformable components can be varied in a direction perpendicular to the plane where the display panel is located, and when it is necessary to increase the support of the display panel, such as when displaying a higher brightness image, it is necessary to ensure that the display panel has good support, so as to ensure that the box thickness of the display panel is uniform and meets the preset requirements, thereby ensuring that the light transmittance is uniform and the brightness meets the preset requirements. In this case, the height of the multiple electrodeformable components is increased, so that they support the display panel together with the first support column of the display panel, so that the display panel has good supporting characteristics; when it is necessary to reduce the support of the display panel, such as when displaying a lower brightness image, it is necessary to reduce the support of the display panel, so as to avoid the displacement of the supporting components and the disturbance of the liquid crystal molecules near the supporting components to generate light leakage. At this time, the height of the multiple electrodeformable components is lowered, so as not to support the display panel, reduce the sliding of the supporting components and cause pressure leakage and other display unevenness, and ensure the contrast and display uniformity of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments are briefly introduced below. The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0015] Figure 1 A schematic top view of a display panel provided by an embodiment of the present invention;

[0016] Figure 2 for Figure 1 A schematic cross-sectional view along the section line A-A';

[0017] Figure 3 for Figure 1 Another schematic cross-sectional view along section line AA';

[0018] Figure 4 for Figure 1 An enlarged schematic diagram of the display panel S area;

[0019] Figure 5 for Figure 1 Another schematic cross-sectional view along section line AA';

[0020] Figure 6 for Figure 1 Another cross-sectional schematic diagram along the section line AA';

[0021] Figure 7 for Figure 1 Another schematic cross-sectional view along section line AA';

[0022] Figure 8 for Figure 1 Another cross-sectional schematic diagram along the section line AA';

[0023] Fig. 9 for Figure 1 Another schematic cross-sectional view along section line AA';

[0024] Fig.10 for Figure 1 Another schematic cross-sectional view along the section line AA';

[0025] Fig.11 for Figure 1 Another schematic cross-sectional view along section line AA';

[0026] Fig.12 for Figure 1 Another cross-sectional schematic diagram along the section line AA';

[0027] Fig.13 A schematic cross-sectional view of an array substrate provided by an embodiment of the present invention;

[0028] Fig.14 A schematic top view of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The increasing demand for the size of terminal display panels has also put forward higher requirements for the support of display panels. To improve the support of display panels, it is necessary to increase the support columns in the liquid crystal display panel, such as increasing the number of support columns or increasing the area size of a single support column. However, increasing the area size of a single support column may sacrifice the opening size of some pixel units, causing the brightness of the display panel to decrease, and dark spots are easily formed in the area where a single support column is located, affecting the display effect. Therefore, increasing the number of support columns has become the first choice.

[0031] The inventors have discovered that when the display panel is displaying a relatively low-brightness image, such as a black image, pressing the display panel at this time can easily cause interference between the support column and the metal area on the opposite array substrate, that is, one end of the support column will slide relative to the other end, thereby affecting the liquid crystal molecules near the support column to rotate slightly, resulting in light leakage. When the pressing force is large, the support column will generate a large friction force at one end, making it difficult for the support column to recover from the tilt, and the liquid crystal molecules near the support column remain in an abnormal state, resulting in the inability to recover from the light leakage. Then, when the number of support columns of the display panel increases, the probability of light leakage in this part greatly increases, thereby increasing the degree of light leakage when displaying relatively low-brightness images, greatly reducing the contrast, and light leakage occurs in local areas, resulting in uneven display.

[0032] At this time, if dark state light leakage is avoided and the number of supporting columns is limited, then when the display panel displays a higher brightness image, the supporting performance will decrease, the box thickness of the liquid crystal display panel will be uneven, and the box thickness in some areas will be low, which will affect the brightness of the display panel. At this time, the contrast will also be reduced and uneven display will occur. That is, when the display panel displays a higher brightness image, it needs sufficient supporting components to obtain better supporting characteristics in order to obtain the preset brightness, and when displaying a lower brightness image, it needs to reduce the supporting components to avoid pressing light leakage and other phenomena. There is a contradiction between the two aspects in the demand for the number of supporting components.

[0033] In view of the above problems, an embodiment of the present invention provides a display panel, such as Figures 1 to 3 , 5-6, Figure 1 A schematic top view of a display panel provided by an embodiment of the present invention, Figure 2 for Figure 1 A schematic cross-sectional view along the section line A-A', Figure 3 for Figure 1 Another cross-sectional diagram along the section line A-A', Figure 5 for Figure 1 Another cross-sectional schematic diagram along the section line A-A', Figure 6 for Figure 1 Another cross-sectional schematic diagram along the section line A-A'; the display panel 1 includes an array substrate 11 and a color filter substrate 12 arranged opposite to each other, and a liquid crystal layer 13 located between the array substrate 11 and the color filter substrate 12, and also includes a plurality of first support columns PS, the first support columns PS are arranged on one side of the array substrate 11 and / or the color filter substrate 12, such as Figures 2-3 As shown, the first support column PS is arranged on one side of the color film substrate 12. In other embodiments of the present invention, the first support column PS can also be arranged on one side of the array substrate 11; the first support column PS includes a main support column MPS and an auxiliary support column SPS, wherein the main support column MPS is in a direction Z perpendicular to the plane where the display panel 1 is located, and its height is greater than the height of the auxiliary support column SPS, that is, the main support column MPS mainly supports the display panel 1, and the auxiliary support column SPS does not contact the opposite side substrate of the substrate where the display panel 1 is located when the display panel 1 is not subjected to external force. Only when the display panel 1 is subjected to external force, such as pressing, and the relative distance between the two side substrates is reduced, the auxiliary support column SPS may contact the opposite side substrate to form support.

[0034] The display panel 1 further includes a plurality of electro-deformable components ED, wherein the electro-deformable components ED are arranged on one side of the array substrate 11 and / or the color filter substrate 12. Figures 2-3 As shown, the electro-deformable component ED is arranged on one side of the color filter substrate 12. Figures 5-6 As shown, the electro-deformable components ED are arranged on one side of the array substrate 11; in the direction Z perpendicular to the plane where the display panel 1 is located, the heights of the plurality of electro-deformable components ED can be varied, and further reference is made to Figures 2-3 As shown, Figure 2 The height of the electrodeformable component ED is greater than Figure 3 The height of the electro-deformable component ED, Figure 2 The electro-deformable component ED and the main support column MPS jointly support the display panel 1, so that the display panel 1 has good supporting characteristics; Figure 3 The height of the electrodeformable component ED is retracted and no longer supports the display panel 1, thereby reducing the phenomenon of light leakage and uneven display caused by the sliding of the supporting component after pressing; therefore, when the display panel 1 displays a higher brightness image, that is, an image with a preset brightness value or above the preset brightness value, the height of the electrodeformable component ED is increased, forming a Figure 2The support in the display panel 1 makes the display panel 1 have good support characteristics, ensuring that the display panel 1 has high brightness, contrast and uniformity that meet the requirements when displaying a higher brightness picture; when the display panel 1 displays a lower brightness picture, that is, a picture below the preset brightness value, the height of the electrodeformable component ED is reduced, forming a Figure 3 The retracted state in the middle can reduce the light leakage and uneven display caused by the sliding of the supporting component after pressing, and also ensure that the display panel 1 has the required low brightness, contrast and uniformity when displaying a lower brightness picture.

[0035] Optional, such as Figure 1 As shown, the display panel 1 includes a plurality of sub-pixel units P arranged along rows (X direction) and columns (Y direction), and also includes scan lines and data lines (not shown in the figure), wherein the scan lines can extend along the row direction, that is, the X direction, and the data lines can extend along the column direction, that is, the Y direction, and the scan lines and the data lines intersect to form a plurality of sub-pixel units P. The color film substrate 12 includes a black matrix 121. In the direction Z perpendicular to the plane where the display panel 1 is located, the projection of the black matrix 121 is set to cover the projection of the first support column PS. Optionally, along the X direction and / or the Y direction, the projection of the electrodeformable component ED and the main support column MPS are set to at least partially overlap; or, the projection of the electrodeformable component ED and the auxiliary support column SPS is at least partially overlapped, that is, in the X direction and / or the Y direction, the center of the electrodeformable component ED and the center of the first support column PS are set to be basically on the same line, which can ensure that the electrodeformable component is covered by the black matrix 121, and ensure that the sub-pixel unit P has consistent opening to ensure uniform display; optionally, the projection of the first support column PS is arranged to overlap with the projection of the scan line and the data line, that is, the main support column MPS and the auxiliary support column SPS are both located above the intersection of the scan line and the data line, and the projection of the electrodeformable component ED can be arranged to overlap with the projection of the scan line and the data line, that is, on the display panel 1, the position of the electrodeformable component ED is the same as the position of the first support column PS, that is, along the X direction and the Y direction, the projection of the electrodeformable component ED and the main support column MPS or the auxiliary support column SPS are arranged to completely overlap; if the display panel 1 includes red sub-pixels, green sub-pixels and blue sub-pixels, and the first support column PS is located between the red sub-pixel and the blue sub-pixel, the electrodeformable component ED can be arranged to also be located between the red sub-pixel and the blue sub-pixel, and to be located at the same position between the red sub-pixel and the blue sub-pixel, thereby ensuring that the display panel 1 has a relatively consistent sub-pixel unit P opening, and ensuring the display uniformity of the display panel 1.

[0036] Optionally, the center of the electrodeformable component ED and the center of the first support column PS may be partially staggered. Since the material of the electrodeformable component ED may be inconsistent with the material of the first support column PS, it needs to be prepared separately and usually needs to be electrically connected to an additional control circuit to drive the electrodeformable component ED. Therefore, according to the overall layout of the display panel 1, it is feasible to differentiate the position of the electrodeformable component ED and the position of the first support column PS to facilitate the connection with the control circuit; however, in the X direction and / or Y direction, the projection of the electrodeformable component ED still partially overlaps with the projection of the main support column MPS or the projection of the auxiliary support column SPS, so that it is located under the cover of the black matrix 121, so that the openings of the sub-pixel units P of the display panel 1 are as consistent as possible, thereby ensuring the display uniformity of the display panel 1.

[0037] Optional, such as Figure 4 As shown, Figure 4 for Figure 1 Schematic diagram of the enlarged area of ​​the display panel S; in the direction Z perpendicular to the plane where the display panel 1 is located, the maximum distance between the projected edge of the electrodeformable component ED and the projected edge of the black matrix 121 is H1, and the maximum distance between the projected edge of the main support column MPS and the projected edge of the black matrix 121 is B1, then H1=B1; usually the black matrix 121 at the main support column MPS and the auxiliary support column SPS needs to be expanded outward, that is, on the basis of the black matrix 121 projection completely covering the projection of the main support column MPS and the auxiliary support column SPS, the projected edge of the black matrix 121 also needs to have a certain distance from the projected edge of the main support column MPS and the auxiliary support column SPS. On the one hand, this can avoid the liquid crystal molecules at the peripheral positions when the main support column MPS and the auxiliary support column SPS are compressed. The angle changes, resulting in uneven brightness in this area. On the other hand, it is also necessary to ensure that there may be alignment fluctuations between the main support column MPS and the auxiliary support column SPS and the black matrix 121; therefore, when the display panel 1 displays a picture above the preset brightness value, the height of the electrodeformable component ED changes, and the actual effect produced is consistent with the effect achieved by the main support column MPS, that is, it supports the display panel 1. Therefore, when the display panel 1 is pressed, the degree of disturbance of the liquid crystal molecules may be consistent with the degree of disturbance of the liquid crystal molecules by the main support column MPS. By setting the maximum distance between the projection edge of the two and the projection edge of the black matrix 121 to be consistent, it is ensured that the display panel has a uniform display brightness, and there is no uneven display phenomenon at the location where the electrodeformable component ED is set. It should be noted that the present invention does not limit the projection shape of the main support column MPS, the auxiliary support column SPS and the electrodeformable component ED. Figure 1 and Figure 4In the figure, the projection shapes of the main support column MPS and the electrodeformable component ED are square, and the projection shape of the auxiliary support column SPS is circular. In other embodiments of the present invention, the projection shapes of the above three can be reasonably set according to the support area required by the display panel 1.

[0038] Optional, please continue to refer to Figures 2-3 ,or Figures 5-6 , in the direction Z perpendicular to the plane where the display panel 1 is located, when the display brightness of the display panel 1 is above the preset brightness value, the heights of the plurality of electrodeformable components ED are consistent with the height of the main support column MPS, such as Figure 2 or Figure 5 When the display panel 1 displays a brightness below a preset brightness value, the height of the plurality of electro-deformable components ED is less than the height of the main support column MPS, such as Figure 3 or Figure 6 That is, when the display panel 1 displays a brightness of a preset brightness value or above, a plurality of electro-deformable components ED directly support the display panel 1; when the display panel 1 displays a brightness below the preset brightness value, a plurality of electro-deformable components ED shrink in the Z direction, and only the main support column MPS is retained to support the display panel 1; the electro-deformable components ED are simply arranged, and when the display panel 1 displays a higher brightness picture, that is, a picture of a preset brightness value or above the preset brightness value, the display panel 1 has good supporting characteristics, ensuring that the display panel 1 has high brightness, contrast and uniformity that meet the requirements when displaying a higher brightness picture; when the display panel 1 displays a lower brightness picture, that is, a picture below the preset brightness value, it can reduce the phenomenon of light leakage and uneven display caused by sliding of the support component after pressing, and also ensure that the display panel 1 has low brightness, contrast and uniformity that meet the requirements when displaying a lower brightness picture.

[0039] Optional, such as Figure 7-Figure 8 As shown, Figure 7 for Figure 1 Another cross-sectional schematic diagram along the section line A-A', Figure 8 for Figure 1 Another cross-sectional schematic diagram along the section line AA'; the display panel 1 further includes a second support column SD2, the second support column SD2 and the electro-deformable component ED are arranged on the same side of the array substrate 11 or the color filter substrate 12, and the second support column SD2 is located on the side of the electro-deformable component ED away from the array substrate 11 or the color filter substrate 12; Figure 7 and Figure 8As shown, the second support column SD2 and the electrodeformable component ED are both arranged on the same side of the color film substrate 12, and the second support column SD2 is located on the side of the electrodeformable component ED away from the color film substrate 12; optionally, in other embodiments of the present invention, the second support column SD2 and the electrodeformable component ED may also be arranged on the same side of the array substrate 11, and the second support column SD2 is located on the side of the electrodeformable component ED away from the array substrate 11; that is, the electrodeformable component ED does not directly support the display panel 1, but supports the display panel 1 together with the second support column SD2, and one end of the second support column SD2 is formed on the electrodeformable component ED, and its position changes with the height of the electrodeformable component ED.

[0040] When the display brightness of the display panel 1 is above the preset brightness value, the sum of the heights of the electrodeformable component ED and the second support column SD2 is consistent with the height of the main support column MPS. Figure 7 When the display panel 1 displays a brightness below a preset brightness value, the sum of the heights of the electrodeformable component ED and the second support column SD2 is less than the height of the main support column MPS, such as Figure 8 . That is, when the display panel 1 displays a brightness of a preset brightness value and above the preset brightness value, multiple electrodeformable components ED and the second support column SD2 jointly support the display panel 1. When the display panel 1 displays a brightness below the preset brightness value, multiple electrodeformable components ED shrink in the Z direction. At the same time, the second support column SD2 changes its position from a supporting state with the opposite substrate to a spacing state, and only the main support column MPS supports the display panel 1. In this setting, the height variation of the electrodeformable component ED is small and easy to implement. When the display panel 1 displays a higher brightness picture, that is, a picture with a preset brightness value and above the preset brightness value, the display panel 1 has good supporting characteristics, ensuring that the display panel 1 has high brightness, contrast and uniformity that meet the requirements when displaying a higher brightness picture; when the display panel 1 displays a lower brightness picture, that is, a picture below the preset brightness value, it can reduce the phenomenon of light leakage and uneven display caused by sliding of the support component after pressing, and also ensure that the display panel 1 has low brightness, contrast and uniformity that meet the requirements when displaying a lower brightness picture.

[0041] Optionally, when the second support column SD2 and the auxiliary support column SPS are arranged on the same side of the array substrate 11 or the color filter substrate 12, in the direction Z perpendicular to the plane where the display panel 1 is located, the height of the second support column SD2 is equal to the height of the auxiliary support column SPS. Figure 7 and Figure 8The second support column SD2 and the auxiliary support column SPS are both located on one side of the color film substrate 12. The height of the second support column SD2 can be set equal to the height of the auxiliary support column SPS. At this time, the second support column SD2 can be prepared simultaneously with the auxiliary support column SPS using the same process, which can save one process and save costs.

[0042] Optional, such as Figure 9-10 As shown, Fig. 9 for Figure 1 Another cross-sectional schematic diagram along the section line A-A', Fig.10 for Figure 1 Another cross-sectional schematic diagram along the section line AA'; the display panel 1 further includes a third support column SD3, the third support column SD3 and the electro-deformable component ED are arranged on the opposite side of the array substrate 11 and the color filter substrate 12, such as Fig. 9 and Fig.10 As shown, the third support column SD3 is arranged on one side of the color filter substrate 12, and the electrodeformable component ED is arranged on one side of the array substrate 11; optionally, in other embodiments of the present invention, the third support column SD3 is arranged on one side of the array substrate 11, and the electrodeformable component ED is arranged on one side of the color filter substrate 12; that is, the electrodeformable component ED does not directly support the display panel 1, but supports the display panel 1 together with the third support column SD3, and in the direction Z perpendicular to the plane where the display panel 1 is located, the electrodeformable component ED changes in height, and comes into contact or not in contact with the third support column SD3, thereby supporting or not supporting the display panel 1.

[0043] When the display brightness of the display panel 1 is above the preset brightness value, the sum of the heights of the electrodeformable component ED and the third support column SD3 is consistent with the height of the main support column MPS. Fig. 9 When the display panel 1 displays a brightness below a preset brightness value, the sum of the heights of the electrodeformable component ED and the third support column SD3 is less than the height of the main support column MPS, such as Fig.10That is, when the display panel 1 displays a brightness of a preset brightness value or above, the plurality of electro-deformable components ED and the third support column SD3 are aligned with each other, and the two are in contact to form a support; when the display panel 1 displays a brightness of a preset brightness value or below, the plurality of electro-deformable components ED shrink in the Z direction, and do not align with the third support column SD3, and the two are separated and do not form a support, and only the main support column MPS is retained to support the display panel 1; in this arrangement, the height variation of the electro-deformable component ED is small, and it is easier to implement, and the electro-deformable component ED and the third support column SD3 are respectively prepared on different sides of the array substrate 11 and the color film substrate 12, which is conducive to the separate preparation of the two. , partial damage to the electrodeformable component ED does not affect the third support column SD3, thereby achieving effective support; when the display panel 1 is displaying a higher brightness picture, that is, a picture at a preset brightness value and above the preset brightness value, the display panel 1 has good supporting characteristics, ensuring that the display panel 1 has high brightness, contrast and uniformity that meet the requirements when displaying a higher brightness picture; when the display panel 1 is displaying a lower brightness picture, that is, a picture below the preset brightness value, it can reduce the phenomenon of light leakage and uneven display caused by sliding of the supporting component after pressing, and also ensure that the display panel 1 has low brightness, contrast and uniformity that meet the requirements when displaying a lower brightness picture.

[0044] Optionally, when the third support column SD3 and the auxiliary support column SPS are arranged on the same side of the array substrate 11 or the color filter substrate 12, in the direction Z perpendicular to the plane where the display panel 1 is located, the height of the third support column SD3 is equal to the height of the auxiliary support column SPS. Fig. 9 and Fig.10 The third support column SD3 and the auxiliary support column SPS are both located on one side of the color film substrate 12. The height of the third support column SD3 can be set equal to the height of the auxiliary support column SPS. At this time, the third support column SD3 can be prepared simultaneously with the auxiliary support column SPS using the same process, which can save one process and save costs.

[0045] like Figure 11 to Figure 13 As shown, Fig.11 for Figure 1 Another cross-sectional schematic diagram along the section line A-A', Fig.12 for Figure 1 Another cross-sectional schematic diagram along the section line A-A', Fig.13 Schematic diagram of a cross-section of an array substrate provided by an embodiment of the present invention; the display panel 1 further includes a control circuit 14, wherein the control circuit 14 is used to control the height of the plurality of electro-deformable components ED in a direction Z perpendicular to the plane where the display panel 1 is located to change; Fig.11As shown, when multiple electro-deformable components ED are arranged on one side of the color filter substrate 12, the electro-deformable components ED are easier to arrange, and the control circuit 14 is also arranged on one side of the color filter substrate 12, so as to facilitate the control of the multiple electro-deformable components ED; Fig.12 As shown, when multiple electrodeformable components ED are arranged on one side of the array substrate 11, the control circuit 14 is also arranged on one side of the array substrate 11. At this time, the control circuit 14 not only facilitates the control of multiple electrodeformable components ED, but also can be directly connected to the driving chip, and the wiring method is simple.

[0046] Optional, please refer to Figure 1 and Fig.13 The array substrate 11 also includes a plurality of sub-pixel units P, each of which includes a pixel electrode PE; and also includes a pixel driving circuit 15, which is electrically connected to the pixel electrode PE and drives the sub-pixel unit P to display different brightnesses; the array substrate 11 provided in the embodiment of the present invention includes a substrate 110, on one side of which a buffer layer 111, a semiconductor layer 112, a first insulating layer 113, a gate metal layer 114, a second insulating layer 115, a source-drain metal layer 116, a planarization layer 117, a common electrode layer 118, a third insulating layer 119 and a driving electrode layer 120 are sequentially stacked, the pixel electrode PE is arranged on the driving electrode layer 120, the common electrode layer 118 and the driving electrode layer 120 are transparent conductive layers, the pixel driving circuit 15 at least includes a semiconductor layer 112, a gate metal layer 114, and a source-drain metal layer 116, and optionally, the film layer structure of the array substrate 11 can also be other structures, which is not limited by the present invention.

[0047] Optionally, when the control circuit 14 is located on one side of the color filter substrate 12, the control circuit 14 can be first electrically connected to the metal layer or the transparent conductive layer of the array substrate 11, and then connected to the driving chip; when the control circuit 14 is located on one side of the array substrate 11, the film layer where the control circuit 14 is located can be set to reuse at least one metal layer or at least one transparent conductive layer; that is, the control circuit 14 shares the film layer with the pixel driving circuit 15, the common electrode layer 118, and the driving electrode layer 120 as much as possible, which can maximize process savings and cost savings.

[0048] The first support column PS, the second support column SD2, the third support column SD3 and the electrodeformable component ED shown in the figure of the present invention do not represent the actual size, quantity and arrangement. This part can be adjusted according to the specific needs of the display panel 1. In order to facilitate the display of key features, the alignment layer is omitted in the figure of the present invention. The alignment layer is used for the initial arrangement of liquid crystal molecules. Therefore, the alignment layer is provided for the relatively arranged support columns and the substrate surface, or the relatively arranged electrodeformable component ED and the substrate surface, or the relatively arranged support columns and the surfaces of the electrodeformable component ED.

[0049] like Fig.14 As shown, Fig.14 A top view schematic diagram of a display device provided in an embodiment of the present invention; an embodiment of the present invention further provides a display device, the display device includes medium and large-sized display terminal products such as smart phones, flat-panel display devices, notebook display devices, and vehicle-mounted display devices, the display device 2 includes the above-mentioned display panel 1, and the beneficial effects produced by the display device are also the beneficial effects described in the above-mentioned embodiments, which will not be repeated here.

[0050] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A display panel, characterized in that: include: An array substrate and a color filter substrate arranged opposite to each other, and a liquid crystal layer located between the array substrate and the color filter substrate; A plurality of first support columns, wherein the first support columns are arranged on one side of the array substrate and / or the color film substrate, the first support columns include a main support column and an auxiliary support column, and in a direction perpendicular to the plane where the display panel is located, the height of the main support column is greater than the height of the auxiliary support column; A plurality of electro-deformable components, wherein the electro-deformable components are arranged on one side of the array substrate and / or the color filter substrate; In the direction perpendicular to the plane where the display panel is located, when the display brightness of the display panel is above a preset brightness value, the height of the multiple electrodeformable components is consistent with the height of the main support column; when the display brightness of the display panel is below the preset brightness value, the height of the multiple electrodeformable components is less than the height of the main support column.

2. The display panel according to claim 1, characterized in that: The display panel includes a plurality of sub-pixel units arranged in rows and columns, and along the row and / or column direction, the projections of the electrodeformable component and the main support column at least partially overlap; or, the projections of the electrodeformable component and the auxiliary support column at least partially overlap.

3. The display panel according to claim 2, characterized in that: The color film substrate includes a black matrix, and in a direction perpendicular to the plane where the display panel is located, the projections of the electrodeformable component, the main support column and the auxiliary support column are all located within the projection of the black matrix; The maximum distance between the projected edge of the electrodeformable component and the projected edge of the black matrix is ​​H1, and the maximum distance between the projected edge of the main support column and the projected edge of the black matrix is ​​B1, H1=B1.

4. The display panel according to claim 1, characterized in that: Also includes a second support column, the second support column and the electrodeformable component are arranged on the same side of the array substrate or the color filter substrate, and the second support column is located on a side of the electrodeformable component away from the array substrate or the color filter substrate; In the direction perpendicular to the plane where the display panel is located, when the display brightness of the display panel is above a preset brightness value, the sum of the heights of the electrodeformable component and the second support column is consistent with the height of the main support column; when the display brightness of the display panel is below the preset brightness value, the sum of the heights of the electrodeformable component and the second support column is less than the height of the main support column.

5. The display panel according to claim 4, characterized in that: The second supporting column and the auxiliary supporting column are arranged on the same side of the array substrate or the color film substrate, and in a direction perpendicular to the plane where the display panel is located, the height of the second supporting column is equal to the height of the auxiliary supporting column.

6. The display panel according to claim 1, characterized in that: It also includes a third supporting column, wherein the third supporting column and the electro-deformable component are arranged on the opposite side of the array substrate and the color filter substrate; In the direction perpendicular to the plane where the display panel is located, when the display brightness of the display panel is above a preset brightness value, the sum of the heights of the electrodeformable component and the third support column is consistent with the height of the main support column; when the display brightness of the display panel is below the preset brightness value, the sum of the heights of the electrodeformable component and the third support column is less than the height of the main support column.

7. The display panel according to claim 6, characterized in that: The third supporting column and the auxiliary supporting column are arranged on the same side of the array substrate or the color film substrate, and in a direction perpendicular to the plane where the display panel is located, the height of the third supporting column is equal to the height of the auxiliary supporting column.

8. The display panel according to claim 1, characterized in that: The plurality of electro-deformable components are arranged on one side of the color film substrate. The color film substrate comprises a control circuit. The control circuit controls the height variation of the plurality of electro-deformable components in a direction perpendicular to the plane where the display panel is located.

9. The display panel according to claim 1, characterized in that: The plurality of electro-deformable components are arranged on one side of the array substrate, the array substrate comprises a plurality of sub-pixel units, and the sub-pixel units comprise pixel electrodes; It also includes a pixel driving circuit and a control circuit, wherein the pixel driving circuit is electrically connected to the pixel electrode, and the control circuit controls the height change of the plurality of electro-deformable components in a direction perpendicular to the plane where the display panel is located; The pixel driving circuit includes at least one metal layer and at least one transparent conductive layer, and the film layer where the control circuit is located reuses the at least one metal layer or the at least one transparent conductive layer.

10. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 9.

Citation Information

Patent Citations

  • Liquid crystal display device and preparation method thereof

    CN111061094A