Display panel and display device

Abstract

The present invention proposes a display panel and a display device, which detects the pressure on the main support column by setting a pressure detection module, so that the degree of pressure on the display panel can be understood, and a corresponding control signal is output to the height adjustment unit, so that the height adjustment unit adjusts the step difference of the auxiliary support column. It can be understood that the step difference is positively correlated with the pressure on the main support column. Therefore, when not under pressure, the auxiliary support column can maintain a higher height and improve the supporting strength. When under pressure, the height of the auxiliary support column is reduced, thereby ensuring the fluidity of the liquid crystal; that is, the present invention can avoid affecting the fluidity of the liquid crystal on the basis of ensuring the supporting strength.

Description

Technical Field

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

[0002] At present, liquid crystal display (LCD) products tend to be designed with large size and high refresh rate. In particular, in order to meet the demand for ultra-high refresh rate, it is often necessary to reduce the Cell Gap (box thickness) and adopt fast-response liquid crystal. At the same time, the glass thickness is also gradually thinning, which greatly increases the design requirements for PS (Photo Spacer, support column); the support column includes a main support column and an auxiliary support column. The main support column supports the two substrates and plays the main supporting role, while the auxiliary support column is lower in height and plays an auxiliary supporting role; if the auxiliary support column is lower in height, the supporting strength of the panel is smaller and the pressure resistance is poor; if the auxiliary support column is higher in height, when the panel is pressed, the gap between the substrate and the auxiliary support column is smaller, or it directly contacts the auxiliary support column. At this time, the flow of liquid crystal will be restricted, causing the problem of DNU (Dark Not Uniform, dark state uneven display). Summary of the Invention

[0003] The main purpose of the present invention is to provide a display panel and a display device, aiming to solve the problems of low support strength or uneven dark display caused by the height setting of auxiliary support columns in the prior art.

[0004] To achieve the above-mentioned object, the present invention provides a display panel, comprising a first substrate, a second substrate, a main support column, an auxiliary support column, a pressure detection module, and a height adjustment module; the first substrate and the second substrate are arranged opposite to each other, and the main support column, the auxiliary support column, the pressure detection module, and the height adjustment module are arranged between the first substrate and the second substrate; the pressure detection module and the height adjustment module are arranged on the first substrate, the main support column is arranged on the pressure detection module, and the main support column is in contact with the second substrate, and the auxiliary support column is arranged on the height adjustment module, and the auxiliary support column is not in contact with the second substrate; the output end of the pressure detection unit is connected to the control end of the height adjustment module; wherein:

[0005] The pressure detection module is used to detect the pressure on the main support column and output a control signal to the height adjustment module according to the pressure on the main support column;

[0006] The height adjustment module is used to receive the control signal sent by the pressure detection module and adjust the step difference according to the control signal, wherein the step difference is the height difference between the main support column and the auxiliary support column, and the step difference is positively correlated with the pressure on the main support column.

[0007] Optionally, the display panel further includes a power supply voltage line, and the pressure detection module includes a power supply electrode, a piezoresistor, and a transmission conductor; wherein:

[0008] The varistor and the transmission conductor are arranged on the first substrate, the main support column is arranged on the varistor, the first end of the varistor is connected to the power supply voltage line through the power supply electrode, and the second end of the varistor is connected to the control end of the height adjustment module through the transmission conductor.

[0009] Optionally, the display panel further includes a common voltage line, and the height adjustment module includes an electrodeformable unit and a common electrode; wherein:

[0010] The electrodeformable unit is arranged on the transmission conductor, the common electrode is arranged on the electrodeformable unit, the auxiliary support column is arranged on the common electrode, and the common electrode is connected to the common voltage line, wherein the electrodeformable unit is deformed under the control of the voltage between the transmission conductor and the common electrode, and the deformation direction of the electrodeformable unit is the height direction of the auxiliary support column.

[0011] Optionally, the pressure on the main support column is negatively correlated with the resistance of the piezoresistor, and the voltage across the electrodeformable unit is positively correlated with the degree of compression of the electrodeformable unit.

[0012] Optionally, the pressure on the main support column is positively correlated with the resistance of the piezoresistor, and the voltage across the electrodeformable unit is negatively correlated with the degree of compression of the electrodeformable unit.

[0013] Optionally, a first groove is provided on a surface of the pressure detection module facing the main support column, the lower end of the main support column is provided in the first groove, and the first groove matches the lower end of the main support column.

[0014] Optionally, a second groove is provided on a surface of the height adjustment module facing the auxiliary support column, the lower end of the auxiliary support column is provided in the second groove, and the second groove matches the lower end of the main support column.

[0015] Optionally, the display panel includes a plurality of support modules, each of which includes one main support column, one pressure detection module, a plurality of auxiliary support columns, and a plurality of height adjustment modules; wherein:

[0016] The main support column is provided in correspondence with the pressure detection module, and the auxiliary support column is provided in one-to-one correspondence with the height adjustment module;

[0017] The output end of the pressure detection module is connected to the control end of each height adjustment module respectively.

[0018] Optionally, the area between the first substrate and the second substrate is divided into a plurality of supporting sub-areas of the same shape and size, and a plurality of the supporting modules are arranged in the supporting sub-areas; wherein:

[0019] For each of the supporting sub-areas, the output ends of the pressure detection modules in the supporting modules are connected to each other.

[0020] In addition, to achieve the above-mentioned object, the present invention further provides a display device, which includes a display panel, and the display panel is configured as the display panel described above.

[0021] The present invention proposes a display panel and a display device, which detect the pressure on the main support column by setting a pressure detection module, so that the degree of pressure on the display panel can be understood, and a corresponding control signal is output to the height adjustment unit, so that the height adjustment unit adjusts the step difference of the auxiliary support column. It can be understood that the step difference is positively correlated with the pressure on the main support column. Therefore, when not under pressure, the auxiliary support column can maintain a higher height and improve the supporting strength. When under pressure, the height of the auxiliary support column is reduced, thereby ensuring the fluidity of the liquid crystal; that is, the present invention can avoid affecting the fluidity of the liquid crystal on the basis of ensuring the supporting strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a functional module diagram of an embodiment of a display panel of the present invention;

[0024] Figure 2 A schematic diagram of the specific arrangement of the first substrate and the second substrate in the display panel of the present invention;

[0025] Figure 3 Schematic diagram of uneven display in dark state;

[0026] Figure 4 The display panel of the present invention is applied in Figure 1 Specific structural diagram in the embodiment;

[0027] Figure 5 is a schematic diagram of a first groove in a display panel of the present invention;

[0028] Figure 6is a schematic diagram of a second groove in a display panel of the present invention;

[0029] Figure 7 Schematic diagram of the supporting sub-area in the display panel of the present invention.

[0030] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0031] Description of Figure Numbers:

[0032] Label name Label name B1 first substrate 310 Height adjustment module B2 Second substrate 311 Electrodeformable unit 210 Pressure detection module 312 Common electrode 211 Power supply electrode 313 Second groove 212 Varistor 400 Support sub-area 213 Transmission conductor 410 Support module 214 First groove VCC Power supply voltage line MPS Main support column VSS Common voltage line SPS Auxiliary support column DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] The present invention provides a display panel, which is used in a display device. Figure 1 , Figure 1This is a functional module diagram of an embodiment of a display panel of the present invention. In this embodiment, the display panel includes a first substrate B1, a second substrate B2, a main support column MPS, an auxiliary support column SPS, a pressure detection module 210, and a height adjustment module 310; the first substrate B1 and the second substrate B2 are arranged opposite each other, and the main support column MPS, the auxiliary support column SPS, the pressure detection module 210, and the height adjustment module 310 are arranged between the first substrate B1 and the second substrate B2; the pressure detection module 210 and the height adjustment module 310 are arranged on the first substrate B1, the main support column MPS is arranged on the pressure detection module 210, and the main support column MPS is in contact with the second substrate B2, and the auxiliary support column SPS is arranged on the height adjustment module 310, and the auxiliary support column SPS is not in contact with the second substrate B2; the output end of the pressure detection unit is connected to the control end of the height adjustment module 310; wherein:

[0038] The pressure detection module 210 is used to detect the pressure on the main support column MPS and output a control signal to the height adjustment module 310 according to the pressure on the main support column MPS;

[0039] The height adjustment module 310 is used to receive the control signal sent by the pressure detection module 210 and adjust the step difference according to the control signal, wherein the step difference is the height difference between the main support column MPS and the auxiliary support column SPS, and the step difference is positively correlated with the pressure on the main support column MPS.

[0040] The first substrate B1 and the second substrate B2 are two substrates surrounding the liquid crystal in the liquid crystal layer. It can be understood that the first substrate B1 is used as a substrate for setting the support column. After the support column is set on the first substrate B1, the first substrate B1 and the second substrate B2 are aligned. Figure 2 ,exist Figure 2 In the figure below, when the first substrate B1 is a filter CF substrate and the second substrate B2 is an array substrate, this solution is the most mature preparation solution at present, with a simple process and high yield. However, there is a problem of precision when aligning the two substrates, and the position accuracy of the support pillars after alignment cannot be guaranteed; Figure 2 In the above figure, when the first substrate B1 is an Array substrate, the second substrate B2 is a CF substrate. This solution has a complex preparation process and high requirements, but it will avoid affecting the alignment accuracy. This embodiment and subsequent embodiments are described by taking the first substrate B1 as an Array substrate and the second substrate B2 as a CF substrate as an example.

[0041] The main support column MPS and the auxiliary support column SPS are arranged between the first substrate B1 and the second substrate B2; the main support column MPS plays the main supporting role, and the two ends of the main support column MPS respectively support the first substrate B1 and the second substrate B2 to provide basic support; one end of the auxiliary support column SPS is set on the first substrate B1, and the other end does not contact the second substrate B2 to provide auxiliary support.

[0042] It can be understood that since the main support column MPS is directly against the first substrate B1 and the second substrate B2, when the panel is pressed in the area where the main support column MPS is set, the main support column MPS will be directly subjected to corresponding pressure. Therefore, in this embodiment, a pressure detection module 210 is set between the main support column MPS and the first substrate B1, so that when pressing occurs, the pressure on the main support column MPS can be detected by the pressure detection module 210, that is, the pressure on the panel can be detected.

[0043] When the panel is pressed, the second substrate B2 will deform due to the pressure. Figure 3 When subjected to pressure, the polarizer POL of the substrate will be deformed, and the substrate glass will generate stress. At the same time, due to the uneven distribution of pressure on the substrate, the stress distribution is uneven. At this time, if the height of the auxiliary support column SPS is high, the second substrate B2 will directly press the auxiliary support column SPS when it is deformed, and the gap above the auxiliary support column SPS will disappear, resulting in a reduction in the flow channel of the liquid crystal, thereby affecting the fluidity of the liquid crystal LC and causing the DNU problem. Therefore, in this embodiment, a height adjustment module 310 is provided to adjust the step difference of the auxiliary support column SPS; the step difference is the main support As for the height difference between the column MPS and the auxiliary support column SPS, it can be understood that the main support column MPS and the auxiliary support column SPS are both arranged on the first substrate B1, and the height of the main support column MPS is higher than that of the auxiliary support column SPS. At the same time, the main support column MPS is in contact with the second substrate B2. Therefore, the step difference can also reflect the distance between the auxiliary support column SPS and the second substrate B2; and the step difference of the auxiliary support column SPS is adjusted through the height adjustment unit, that is, the distance between the auxiliary support column SPS and the second substrate B2 is adjusted, so as to realize the adjustment of different height states of the auxiliary support column SPS.

[0044] It can be understood that when the panel is not pressed, the height of the auxiliary support column SPS needs to be higher and the corresponding step difference is smaller to achieve greater support strength. When the panel is pressed, the height of the auxiliary support column SPS needs to be lower to improve the fluidity of the liquid crystal. The greater the pressing pressure, the lower the height of the auxiliary support column SPS and the larger the corresponding step difference; that is, the step difference of the auxiliary support column SPS is negatively correlated with the pressing pressure; therefore, a pressure sensing module is set to detect the pressure on the main support column MPS, and then the corresponding control signal is sent to the height adjustment module 310, so that the step difference of the auxiliary support column SPS can be automatically adjusted to be negatively correlated with the pressing pressure.

[0045] This embodiment detects the pressure on the main support column MPS by setting a pressure detection module 210, so that the degree of pressure on the display panel can be understood, and a corresponding control signal is output to the height adjustment unit, so that the height adjustment unit adjusts the step difference of the auxiliary support column SPS. It can be understood that the step difference is positively correlated with the pressure on the main support column MPS. Therefore, when not under pressure, the auxiliary support column SPS can maintain a higher height and improve the supporting strength. When under pressure, the height of the auxiliary support column SPS is reduced, thereby ensuring the fluidity of the liquid crystal; that is, this embodiment can avoid affecting the fluidity of the liquid crystal while ensuring the supporting strength.

[0046] Further, see Figure 4 , the display panel further includes a power supply voltage line VCC, the pressure detection module 210 includes a power supply electrode 211, a piezoresistor 212 and a transmission conductor 213; wherein:

[0047] The varistor 212 and the transmission conductor 213 are arranged on the first substrate B1, the main support column MPS is arranged on the varistor 212, the first end of the varistor 212 is connected to the power supply voltage line VCC through the power supply electrode 211, and the second end of the varistor 212 is connected to the control end of the height adjustment module 310 through the transmission conductor 213.

[0048] The resistance of the varistor 212 changes with changes in the ambient pressure; specifically, based on the different types of the varistor 212, the resistance of the varistor 212 can increase with the increase of pressure, or decrease with the increase of pressure; the specific type of the varistor 212 can be set based on actual needs, such as the varistor 212 made of varistor silicon material.

[0049] The power supply voltage line VCC is used to provide the power supply voltage, and the power supply electrode 211 is used to access the power supply voltage; it should be noted that the display panel is provided with multiple main support columns MPS and corresponding pressure detection modules 210, and the power supply electrodes 211 in each pressure detection module 210 can be uniformly connected to the power supply voltage line VCC to achieve a unified and identical power supply voltage; the specific value of the power supply voltage can be set based on actual needs.

[0050] The supply voltage connected to the power supply electrode 211 flows through the varistor 212 and the transmission conductor 213 to reach the height adjustment module 310. It can be understood that the varistor 212 has a resistance parameter, and the transmission conductor 213 also has a resistance parameter, but the resistance value of the transmission conductor 213 is fixed. Therefore, after the supply voltage flows in, it is divided by the varistor 212 and the transmission conductor 213. Because the resistance value of the varistor 212 changes with the pressure it is subjected to, when the resistance value of the varistor 212 changes, the resistance ratio between the varistor 212 and the transmission conductor 213 changes, causing the voltage division of the supply voltage to change. Specifically, when the resistance of the varistor 212 increases, the voltage shared by the varistor 212 increases, and the voltage on the transmission conductor 213 decreases; conversely, when the resistance of the varistor 212 decreases, the voltage shared by the varistor 212 decreases, and the voltage on the transmission conductor 213 increases; that is, the voltage on the transmission conductor 213 will change with the change in the resistance of the varistor 212, that is, the voltage on the transmission conductor 213 will change with the change in the pressure on the main support column MPS, and therefore, the voltage on the transmission conductor 213 is the control signal; the height adjustment module 310 adjusts the step difference of the auxiliary support column SPS based on the voltage on the transmission conductor 213.

[0051] Furthermore, the display panel further includes a common voltage line VSS, and the height adjustment module 310 includes an electrodeformable unit 311 and a common electrode 312; wherein:

[0052] The electrodeformable unit 311 is arranged on the transmission conductor 213, the common electrode 312 is arranged on the electrodeformable unit 311, the auxiliary support column SPS is arranged on the common electrode 312, and the common electrode 312 is connected to the common voltage line VSS, wherein the electrodeformable unit 311 is deformed under the control of the voltage between the transmission conductor 213 and the common electrode 312, and the deformation direction of the electrodeformable unit 311 is the height direction of the auxiliary support MPS.

[0053] The physical form of the electrodeformable unit 311 changes with the change of the voltage it is subjected to; specifically, based on the different types of the electrodeformable unit 311, the changes in the electrodeformable unit 311 with voltage are also different; for example, the electrodeformable unit 311 is compressed in the current direction as the voltage increases, and is stretched in the current direction as the voltage increases; the specific type of the electrodeformable unit 311 can be set based on actual needs, such as dielectric elastomer\ferroelectric polymer, electrolytic liquid crystal elastomer, electrostrictive grafted elastomer, carbon nanotube composite material, ionic polymer-metal composite material, and electrodeformable hydrogel.

[0054] The common voltage line VSS is used to provide a common voltage, and the common electrode 312 is used to access the common voltage; it should be noted that a plurality of auxiliary support columns SPS and corresponding height adjustment modules 310 are provided in the display panel, and the common electrodes 312 in each height adjustment module 310 can be uniformly connected to the common voltage line VSS to achieve a uniform and identical common voltage provision; the specific value of the common voltage can be set based on actual needs.

[0055] The electrodeformable unit 311 is arranged between the transmission conductor 213 and the common electrode 312; therefore, the voltage across the electrodeformable unit 311 is determined by the transmission conductor 213 and the common electrode 312; while the common voltage is fixed, the voltage on the transmission conductor 213 changes based on the pressure applied to the main support column MPS, and therefore the voltage across the electrodeformable unit 311 changes based on the voltage change on the transmission conductor 213; specifically, when the voltage on the transmission conductor 213 increases, the voltage across the electrodeformable unit 311 increases, and when the voltage on the transmission conductor 213 decreases, the voltage across the electrodeformable unit 311 decreases.

[0056] It can be understood that in this embodiment, the electrodeformable unit 311 is set to be clamped between the transmission conductor 213 and the common electrode 312, so that the current flows from the transmission conductor 213 to the common electrode 312, that is, the current direction is from bottom to top, and the electrodeformable unit 311 is compressed or stretched along the current direction when deformation occurs, thereby driving the auxiliary support column SPS to move toward the first substrate B1 or the second substrate B2, thereby realizing the adjustment of the step difference of the auxiliary support column SPS.

[0057] Furthermore, the pressure on the main support column MPS is negatively correlated with the resistance of the piezoresistor 212 , and the voltage across the electrodeformable unit 311 is positively correlated with the degree of compression of the electrodeformable unit 311 .

[0058] It can be understood that the changes in the piezoresistor 212 and the electrodeformable unit 311 can be selected based on actual needs; in this embodiment, the pressure on the main support column MPS is negatively correlated with the resistance of the piezoresistor 212, so that the greater the pressure on the main support column MPS, the smaller the resistance of the piezoresistor 212, the smaller the voltage divided by the piezoresistor 212, the greater the voltage on the transmission conductor 213, and the greater the voltage across the electrodeformable unit 311; at the same time, the degree of compression of the electrodeformable unit 311 is positively correlated with the voltage across the two ends, therefore, when the voltage across the electrodeformable unit 311 is greater, the greater the degree of compression of the electrodeformable unit 311, the lower the height of the auxiliary support column SPS, and the greater the step difference; that is, the greater the pressure on the main support column MPS, the greater the step difference of the auxiliary support column SPS; that is, in this embodiment, automatic adjustment of the positive correlation between the pressure on the main support column MPS and the step difference of the auxiliary support column SPS is achieved.

[0059] Furthermore, the pressure on the main support column MPS is positively correlated with the resistance of the piezoresistor 212 , and the voltage across the electrodeformable unit 311 is negatively correlated with the degree of compression of the electrodeformable unit 311 .

[0060] In this embodiment, the pressure on the main support column MPS is positively correlated with the resistance of the varistor 212, so that the greater the pressure on the main support column MPS, the greater the resistance of the varistor 212, the greater the voltage divided by the varistor 212, the smaller the voltage on the transmission conductor 213, and the smaller the voltage across the electrodeformable unit 311; at the same time, the degree of compression of the electrodeformable unit 311 is negatively correlated with the voltage across the two ends. Therefore, the smaller the voltage across the electrodeformable unit 311, the greater the degree of compression of the electrodeformable unit 311, the lower the height of the auxiliary support column SPS, and the greater the step difference; that is, the greater the pressure on the main support column MPS, the greater the step difference of the auxiliary support column SPS; that is, in this embodiment, automatic adjustment of the positive correlation between the pressure on the main support column MPS and the step difference of the auxiliary support column SPS is achieved.

[0061] Further, see Figure 5 A first groove 214 is provided on a surface of the pressure detection module 210 facing the main support column MPS. The lower end of the main support column MPS is provided in the first groove 214. The first groove 214 matches the lower end of the main support column MPS.

[0062] It can be understood that the main support column MPS and the pressure detection module 210 are stacked between the first substrate B1 and the second substrate B2. If the main support column MPS and the pressure detection module 210 are simply stacked, the main support column MPS and the pressure detection module 210 are prone to position deviation; therefore, in this embodiment, a first groove 214 that matches the lower end of the main support column MPS is set on the side of the pressure detection module 210 facing the main support column MPS, so that the main support column MPS can be fixed on the pressure detection module 210 through the first groove 214, thereby achieving position fixation and avoiding position deviation between the main support column MPS and the pressure detection module 210.

[0063] It should be noted that when the pressure detection module 210 is specifically set up, the devices such as the piezoresistor 212 can be packaged and the first groove 214 can be set on the package, or the first groove 214 can be set on the piezoresistor 212 that directly contacts the main support column MPS.

[0064] Further, see Figure 6 A second groove 313 is provided on the side of the height adjustment module 310 facing the auxiliary support column SPS, and the lower end of the auxiliary support column SPS is provided in the second groove 313, and the second groove 313 matches the lower end of the main support column MPS.

[0065] It can be understood that the auxiliary support column SPS and the height adjustment module 310 are stacked. If the auxiliary support column SPS and the height adjustment module 310 are simply stacked, the auxiliary support column SPS and the height adjustment module 310 are prone to position deviation; therefore, in this embodiment, a second groove 313 matching the lower end of the auxiliary support column SPS is provided on the side of the height adjustment module 310 facing the auxiliary support column SPS, so that the auxiliary support column SPS can be fixed on the height adjustment module 310 through the second groove 313, thereby achieving position fixation and avoiding position deviation between the auxiliary support column SPS and the height adjustment module 310.

[0066] It should be noted that when specifically setting up the height adjustment module 310, the electrodeformable unit 311, common electrode 312 and other devices can be packaged, and a second groove 313 can be set on the package, or a second groove 313 can be set on the common electrode 312 that directly contacts the auxiliary support column SPS.

[0067] Furthermore, the display panel includes a plurality of support modules 410, each of which includes one main support column MPS, one pressure detection module 210, a plurality of auxiliary support columns SPS, and a plurality of height adjustment modules 310; wherein:

[0068] The main support column MPS is provided correspondingly to the pressure detection module 210, and the auxiliary support column SPS is provided correspondingly to the height adjustment module 310;

[0069] The output end of the pressure detection module 210 is connected to the control end of each of the height adjustment modules 310 respectively.

[0070] It can be understood that in actual applications, it is necessary to set multiple main support columns MPS and multiple auxiliary support columns SPS at different positions of the actual panel. At the same time, the number of auxiliary support columns SPS is much greater than the number of main support columns MPS; therefore, in order to ensure that the step difference of each auxiliary support column SPS can be adjusted, in this embodiment, a support module 410 is set, each module contains a group of corresponding main support columns MPS and pressure detection modules 210 for pressure detection, and at the same time, multiple groups of corresponding auxiliary support columns SPS and height adjustment modules 310 are set; each height adjustment module 310 is controlled by the control signal output by the pressure detection module 210 in the support module 410, that is, in a single support module 410, the step difference adjustment of each auxiliary support column SPS is based on the same main support column MPS, and the step difference adjustment of each auxiliary support column SPS is consistent; in the specific structural setting, the transmission conductor 213 in the pressure detection module 210 can be extended to the bottom of the electrodeformable unit 311 in each height adjustment module 310.

[0071] It should be noted that the step adjustment of the auxiliary support columns SPS in the support module 410 is based on the same main support column MPS, and the step of the auxiliary support column SPS needs to match the needs of the liquid crystal around it; when the display panel is pressed, the pressure conditions at the pressed position are often similar, while the pressure at the position farther away from the pressed position is smaller or even no pressure. Therefore, when the main support column MPS is pressed, the liquid crystal around it needs to have enhanced fluidity, so the auxiliary support columns SPS around it need to increase the step; therefore, for the same support module 410, the auxiliary support columns SPS contained therein should be distributed around the main support column MPS so that it can match the needs of the liquid crystal.

[0072] Further, see Figure 7 The area between the first substrate B1 and the second substrate B2 is divided into a plurality of supporting sub-areas 400 of the same shape and size, and a plurality of supporting modules 410 are provided in the supporting sub-areas 400; wherein:

[0073] For each of the supporting sub-areas 400 , the output ends of the pressure detection modules 210 in the supporting modules 410 are connected to each other.

[0074] It can be understood that when the display panel is pressed, the pressure conditions at the pressed position are often similar, but based on the different distances from the force-bearing position, the specific pressures received by the pressure sensing modules at different positions are also different; therefore, even if the auxiliary support columns SPS are arranged near the pressed position, the step differences between them will be different, and the difference in step differences will cause uneven display in this area; therefore, in this embodiment, the support sub-area 400 is divided; the specific size of the support sub-area 400 can be set based on actual needs. In this embodiment, the purpose is to make the display uniform in the pressed area, so the size of the support sub-area 400 can be set to be close to the finger touch area, such as setting the support sub-area 400 to be projected as a rectangle, the length of the support sub-area 400 is 5mm~10mm, and the width of the support sub-area 400 is 5mm~10mm.

[0075] In order to achieve uniform display within the support sub-area 400, it is necessary to unify the step differences of the auxiliary support columns SPS within the support sub-area 400 or set them similarly. Therefore, in this embodiment, the output ends of the pressure detection modules 210 are interconnected, so that the control signals output by the pressure detection modules 210 to each height detection module are the same, thereby achieving the same step difference setting of the auxiliary support columns SPS; in the specific structural setting, the transmission conductors 213 in all the pressure detection modules 210 within the support sub-area 400 are interconnected, so that the voltages on each transmission conductor 213 are the same or similar, and since the common voltages connected to each pressure detection module 210 are the same, the compression degrees of the electrodeformable units 311 can be made the same or similar, and therefore, the step differences of the auxiliary support columns SPS can be unified or set similarly.

[0076] The present invention also protects a display device, which includes a display panel. The structure of the display panel can refer to the above embodiment and will not be described in detail here. As a matter of course, since the display device of this embodiment adopts the technical solution of the above display panel, the display device has all the beneficial effects of the above display panel.

[0077] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system comprising 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, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or system comprising the element. The serial numbers of the above-mentioned embodiments of the present invention are for description only and do not represent the advantages and disadvantages of the embodiments.

[0078] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A display panel, characterized in that: The display panel includes a first substrate, a second substrate, a main support column, an auxiliary support column, a pressure detection module, and a height adjustment module; the first substrate and the second substrate are arranged opposite to each other, and the main support column, the auxiliary support column, the pressure detection module, and the height adjustment module are arranged between the first substrate and the second substrate; the pressure detection module and the height adjustment module are arranged on the first substrate, the main support column is arranged on the pressure detection module, and the main support column is in contact with the second substrate, and the auxiliary support column is arranged on the height adjustment module, and the auxiliary support column is not in contact with the second substrate; the output end of the pressure detection module is connected to the control end of the height adjustment module; wherein: The pressure detection module is used to detect the pressure on the main support column and output a control signal to the height adjustment module according to the pressure on the main support column; The height adjustment module is used to receive the control signal sent by the pressure detection module and adjust the step difference according to the control signal, wherein the step difference is the height difference between the main support column and the auxiliary support column, and the step difference is positively correlated with the pressure on the main support column.

2. The display panel according to claim 1, wherein The display panel further includes a power supply voltage line, and the pressure detection module includes a power supply electrode, a piezoresistor, and a transmission conductor; wherein: The varistor and the transmission conductor are arranged on the first substrate, the main support column is arranged on the varistor, the first end of the varistor is connected to the power supply voltage line through the power supply electrode, and the second end of the varistor is connected to the control end of the height adjustment module through the transmission conductor.

3. The display panel according to claim 2, wherein: The display panel further includes a common voltage line, and the height adjustment module includes an electrodeformable unit and a common electrode; wherein: The electrodeformable unit is arranged on the transmission conductor, the common electrode is arranged on the electrodeformable unit, the auxiliary support column is arranged on the common electrode, and the common electrode is connected to the common voltage line, wherein the electrodeformable unit is deformed under the control of the voltage between the transmission conductor and the common electrode, and the deformation direction of the electrodeformable unit is the height direction of the auxiliary support column.

4. The display panel according to claim 3, wherein: The pressure on the main support column is negatively correlated with the resistance value of the piezoresistor, and the voltage across the electrodeformable unit is positively correlated with the degree of compression of the electrodeformable unit.

5. The display panel according to claim 3, wherein: The pressure on the main support column is positively correlated with the resistance value of the piezoresistor, and the voltage across the electrodeformable unit is negatively correlated with the degree of compression of the electrodeformable unit.

6. The display panel according to claim 1, wherein: A first groove is provided on a surface of the pressure detection module facing the main support column, and the lower end of the main support column is provided in the first groove, and the first groove matches the lower end of the main support column.

7. The display panel according to claim 1, wherein: A second groove is provided on a surface of the height adjustment module facing the auxiliary support column, the lower end of the auxiliary support column is provided in the second groove, and the second groove matches the lower end of the main support column.

8. The display panel according to claim 1, wherein: The display panel includes a plurality of support modules, each of which includes one main support column, one pressure detection module, a plurality of auxiliary support columns, and a plurality of height adjustment modules; wherein: The main support column is provided in correspondence with the pressure detection module, and the auxiliary support column is provided in one-to-one correspondence with the height adjustment module; The output end of the pressure detection module is connected to the control end of each height adjustment module respectively.

9. The display panel according to claim 8, wherein: The area between the first substrate and the second substrate is divided into a plurality of supporting sub-areas of the same shape and size, and a plurality of the supporting modules are arranged in the supporting sub-areas; wherein: For each of the supporting sub-areas, the output ends of the pressure detection modules in the supporting modules are connected to each other.

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

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