Display module and display device

Abstract

The present application provides a display module and a display device. The display module includes: an organic light-emitting layer, a first polarizing layer, a liquid crystal driving layer, a display medium layer, a second polarizing layer, and a color filter layer that are stacked in a first direction; the first polarizing layer includes a plurality of first polarizing films, the display medium layer includes a plurality of liquid crystal cell structures, and the second polarizing layer includes a plurality of second polarizing films; the organic light-emitting layer includes a plurality of pixel light-emitting units, and for each pixel light-emitting unit, a first polarizing film, a liquid crystal cell structure, a second polarizing film, and a color-resist block are correspondingly arranged in the first direction. The first polarizing film, the liquid crystal cell structure, the second polarizing film, and the color-resist block corresponding to each pixel light-emitting unit form a liquid crystal display unit corresponding to the pixel light-emitting unit, and the projection range of each liquid crystal display unit on the organic light-emitting layer is located within the corresponding pixel light-emitting unit. The technical solution provided by the present application can improve the layering of the display screen of the display module.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a display module and a display device. Background Art

[0002] With the increasing demand of users for display image quality, Organic Electroluminescence Display (OLED) devices are becoming more and more popular in the display field due to their self-luminescence, pixel-level light control, wide viewing angle, fast dynamic response and many other characteristics.

[0003] Gray scale divides the brightness change between the darkest and the whitest of the display image of a display device into several gray levels. The more gray levels there are, the more natural the level transition is when the display image has light and dark contrast and black and white color transition, and the finer the image effect that can be presented, and the better the display effect. Therefore, gray scale is one of the main factors affecting the richness of display colors and the display quality.

[0004] Existing OLED display devices usually have 256 gray scales during color display, that is, the display device can display 256 colors from the darkest to the whitest. Such a display device is not delicate enough for color display, and the corresponding display image has poor layering. Summary of the Invention

[0005] In view of this, the present application provides a display module and a display device, which are used to increase the gray levels of the display module, and thus improve the layering of the display image.

[0006] To achieve the above object, in a first aspect, an embodiment of the present application provides a display module, including: an organic light-emitting layer, a first polarizing layer, a liquid crystal driving layer, a display medium layer, a second polarizing layer and a color filter layer stacked along a first direction;

[0007] The first polarizing layer includes a plurality of first polarizers arranged at intervals, the display medium layer includes a plurality of liquid crystal cell structures arranged at intervals, the second polarizing layer includes a plurality of second polarizers arranged at intervals, the polarization directions of the first polarizer and the second polarizer are perpendicular, and the color filter layer includes a plurality of color resistance blocks arranged at intervals;

[0008] The organic light-emitting layer includes a plurality of pixel light-emitting units. Each of the pixel light-emitting units is correspondingly provided with the first polarizer, the liquid crystal cell structure, the second polarizer and the color resistance block in the first direction. The first polarizer, the liquid crystal cell structure, the second polarizer and the color resistance block corresponding to each pixel light-emitting unit form a liquid crystal display unit corresponding to the pixel light-emitting unit, and the projection range of each liquid crystal display unit on the organic light-emitting layer is located within the corresponding pixel light-emitting unit.

[0009] In a possible implementation of the first aspect, the display medium layer further includes a first alignment layer and a second alignment layer disposed opposite to each other on two sides of the liquid crystal cell structure. The liquid crystal cell structure includes a liquid crystal cell surrounded by an isolation and support structure supported between the first alignment layer and the second alignment layer, and liquid crystal filled in the liquid crystal cell.

[0010] In a possible implementation of the first aspect, the cross-sectional area of the liquid crystal cell gradually decreases along a first direction. The size of the first opening of the liquid crystal cell matches the size of the corresponding first polarizer, and the size of the second opening of the liquid crystal cell matches the size of the corresponding second polarizer. The first opening of the liquid crystal cell faces the corresponding first polarizer, and the second opening of the liquid crystal cell faces the corresponding second polarizer;

[0011] The width of the first polarizer in a second direction is greater than the width of the second polarizer in the second direction; the first direction is perpendicular to the second direction.

[0012] In a possible implementation of the first aspect, the isolation and support structure is made of a black organic photoresist material.

[0013] In a possible implementation of the first aspect, in the second direction, the width of the first polarizer is half of the corresponding pixel light-emitting unit, and the width of the second polarizer is half of the width of the corresponding color-resist block.

[0014] In a possible implementation of the first aspect, the first polarizer and the second polarizer are thin crystal film polarizers prepared from self-polymerized nanomaterials.

[0015] In a possible implementation of the first aspect, the liquid crystal driving layer includes a plurality of liquid crystal driving units corresponding one-to-one to the liquid crystal cell structure. The liquid crystal driving unit includes a first electrode and a second electrode for deflecting liquid crystal.

[0016] In a possible implementation of the first aspect, the materials of the first electrode and the second electrode are ITO.

[0017] In a possible implementation of the first aspect, the first polarizer layer further includes a first polarizer flat layer, and the first polarizer flat layer covers the organic light-emitting layer and each of the first polarizers;

[0018] The second polarizer layer further includes a second polarizer flat layer, and the second polarizer flat layer covers the color filter layer and the second polarizer.

[0019] In a second aspect, an embodiment of the present application provides a display device, including: a driving circuit and a display module as described in any possible implementation manner of the first aspect above. The driving circuit is electrically connected to the display module and is configured to drive the display module to display a picture.

[0020] A display module provided by an embodiment of the present application includes: an organic light-emitting layer, a first polarizing layer, a liquid crystal driving layer, a display medium layer, a second polarizing layer, and a color filter layer stacked in a first direction; the first polarizing layer includes a plurality of first polarizing plates arranged at intervals, the display medium layer includes a plurality of liquid crystal cell structures arranged at intervals, the second polarizing layer includes a plurality of second polarizing plates arranged at intervals, the polarization directions of the first polarizing plate and the second polarizing plate are perpendicular, and the color filter layer includes a plurality of color resistance blocks arranged at intervals; the organic light-emitting layer includes a plurality of pixel light-emitting units, and each pixel light-emitting unit is correspondingly provided with a first polarizing plate, a liquid crystal cell structure, a second polarizing plate, and a color resistance block in the first direction. The first polarizing plate, the liquid crystal cell structure, the second polarizing plate, and the color resistance block corresponding to each pixel light-emitting unit form a liquid crystal display unit corresponding to the pixel light-emitting unit, and the projection range of each liquid crystal display unit on the organic light-emitting layer is located within the corresponding pixel light-emitting unit. The display module provided by the embodiment of the present application can control the brightness of the display gray level corresponding to each pixel light-emitting unit, so that the display picture can perform gray level display more finely, thereby improving the layering and contrast of the display picture. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the display module provided by an embodiment of the present application;

[0022] Figure 2 is Figure 1 the first top view schematic diagram of the liquid crystal cell structure shown;

[0023] Figure 3 is Figure 1 the second top view schematic diagram of the liquid crystal cell structure shown;

[0024] Figure 4 is a schematic structural diagram of the liquid crystal driving layer and the display medium layer provided by an embodiment of the present application;

[0025] Figure 5 is a schematic diagram of the principle of gray level adjustment of the display module provided by an embodiment of the present application;

[0026] Figure 6 is a schematic structural diagram of the display device provided by an embodiment of the present application.

[0027] Description of the Reference Numerals:

[0028] 1 - Organic light - emitting layer; 11 - Substrate; 12 - Pixel light - emitting unit; 121 - Cathode layer; 122 - Electron injection layer; 123 - Electron transport layer; 124 - Light - emitting layer; 125 - Hole transport layer; 126 - Hole injection layer; 127 - Anode layer; 13 - Insulating planarization layer;

[0029] 2 - First polarizing layer; 21 - First polarizer; 22 - First polarization planarization layer; 3 - Liquid crystal driving layer; 31 - Array substrate; 32 - Liquid crystal driving unit; 321 - First electrode; 322 - Second electrode;

[0030] 4 - Display medium layer; 41 - Liquid crystal cell structure; 411 - Liquid crystal cell; 412 - Liquid crystal; 42 - First alignment layer; 43 - Second alignment layer;

[0031] 5 - Second polarizing layer; 51 - Second polarizer; 52 - Second polarization planarization layer; 6 - Color filter layer; 61 - Color filter substrate; 62 - Color resist block; 63 - Black matrix; 64 - Protective layer;

[0032] 100 - Driving circuit; 200 - Display module. Detailed implementation manners

[0033] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. The terms used in the implementation manners part of the embodiments of the present application are only used to explain the specific embodiments of the present application, rather than intended to limit the present application. These several specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0034] Figure 1 It is a schematic structural diagram of the display module provided by the embodiments of the present application. As Figure 1 shown, the display module may include an organic light - emitting layer 1, a first polarizing layer 2, a liquid crystal driving layer 3, a display medium layer 4, a second polarizing layer 5, and a color filter layer 6 stacked in a first direction (the first direction is the Figure 1 shown X - axis direction, that is, from bottom to top).

[0035] Referring to Figure 1 , the organic light - emitting layer 1 may be an organic light - emitting diode (OLED) light - emitting layer. The OLED light - emitting layer may include a substrate 11, a plurality of pixel light - emitting units 12, and an insulating planarization layer 13.

[0036] The substrate 11 can be a transparent substrate, and the material can be quartz, glass, organic polymer and other materials to reduce the manufacturing cost. Considering that when the substrate 11 is a transparent substrate, the light emitted by the pixel light-emitting unit 12 may leak out of the display device through the substrate 11, causing light leakage. In some embodiments, the substrate 11 can be doped with light-shielding materials such as carbon black or black organic dyes to block the light from emitting out of the substrate 11.

[0037] It should be noted that if the material of the substrate 11 is selected as a conductive material, in order to improve the reliability of the organic light-emitting layer 1, an insulating protective layer can be formed on the upper surface of the substrate 11 to reduce the occurrence of short circuits in the pixel light-emitting unit 12.

[0038] The multiple pixel light-emitting units 12 can be arranged at intervals. Each pixel light-emitting unit 12 can include a cathode layer 121, an electron injection layer 122, an electron transport layer 123, a light-emitting layer 124, a hole transport layer 125, a hole injection layer 126, and an anode layer 127 stacked from bottom to top. The cathode layer 121 can generate electrons under the action of current, and the electrons are transmitted to the light-emitting layer 124 through the electron injection layer 122 and the electron transport layer 123. The anode layer 127 can generate holes under the action of current, and the holes are transmitted to the light-emitting layer 124 through the hole injection layer 126 and the hole transport layer 125. The holes and electrons can combine in the light-emitting layer 124 to emit white light. Among them, the electron injection layer 122, the electron transport layer 123, the light-emitting layer 124, the hole transport layer 125, and the hole injection layer 126 can all be formed on the substrate 11 by evaporation. The anode layer 127 can be prepared from a transparent conductive material, such as indium tin oxide (ITO), so as to improve the optical transmittance and conductivity of the pixel light-emitting unit 12.

[0039] The insulating planarization layer 13 can be formed above each pixel light-emitting unit 12 and in the interval area between adjacent pixel light-emitting units 12. The insulating planarization layer 13 can be prepared from an insulating material. By providing the insulating planarization layer 13, while realizing the insulation between adjacent pixel light-emitting units 12, it is also convenient to prepare other film layers above the insulating planarization layer 13.

[0040] In some embodiments, a pixel defining layer can also be first formed on the substrate 11. The pixel defining layer includes a plurality of pixel opening areas. The pixel light-emitting unit 12 is arranged in the pixel opening area, and then the insulating planarization layer 13 is formed above the pixel light-emitting unit 12 and the pixel defining layer.

[0041] The color film layer 6 may include a color film substrate 61, color resist blocks 62, a black matrix 63 disposed on the lower surface of the color film substrate 61, and a protective layer 64 covering the color resist blocks 62 and the black matrix 63. The color film layer 6 may include a plurality of sub-pixel light-emitting regions, and the sub-pixel light-emitting regions may correspond one-to-one with the pixel light-emitting units 12. Among them, the color resist blocks 62 may exemplarily include red color resist blocks, green color resist blocks, and blue color resist blocks. Each color resist block 62 only allows light of the same color as it to pass through, thereby forming red, green, and blue primary color lights; the black matrix 63 may be used to divide the color resist blocks 62 and reduce the light mixing between different colors of adjacent sub-pixel light-emitting regions, improving the contrast; the protective layer 64 may be used to protect the color resist blocks 62 and the black matrix 63 from damage, and at the same time play a role in flattening the color resist blocks 62 and the black matrix 63.

[0042] The first polarizing layer 2 may include a plurality of first polarizers 21 arranged at intervals. Taking the polarization direction of the first polarizer 21 along the Y-axis as an example, when the light of the pixel light-emitting unit 12 passes through the first polarizing layer 2, the light with the vibration direction perpendicular to the Y-axis will be blocked, and only the Y-direction polarized light with the vibration direction parallel to the Y-axis passes through.

[0043] Refer to Figure 1 , the first polarizing layer 2 may further include a first polarizing flat layer 22. The first polarizing flat layer 22 may cover the organic light-emitting layer 1 and each first polarizer 21. On the one hand, the first polarizing flat layer 22 can reduce the damage to the organic light-emitting layer 1 and the first polarizers 21, and on the other hand, it can also improve the flatness of the first polarizing layer 2 and the adhesion between the first polarizing layer 2 and its adjacent film layers.

[0044] The second polarizing layer 5 may include a plurality of second polarizers 51 arranged at intervals. The polarization direction of the second polarizer 51 is perpendicular to the polarization direction of the first polarizer 21, so the polarization direction of the second polarizer 51 is along the Z-axis. The second polarizing layer 5 may further include a second polarizing flat layer 52. The second polarizing flat layer 52 may cover the color film layer 6 and the second polarizers 51. Similar to the first polarizing flat layer 22, on the one hand, the second polarizing flat layer 52 can reduce the damage to the second polarizers 51 and the protective layer 64, and on the other hand, it can also improve the flatness of the second polarizing layer 5 and the adhesion between the second polarizing layer 5 and its adjacent film layers. The materials of the first polarizing flat layer 22 and the second polarizing flat layer 52 may be PI.

[0045] Each pixel light-emitting unit 12 may be provided with a first polarizer 21 and a second polarizer 51 arranged opposite to each other. The first polarizer 21 and the second polarizer 51 may be thin-film crystal film polarizers. In the preparation process of the first polarizer 21 and the second polarizer 51, a self-polymerizing nanomaterial processing technology may be used to directly print sub-micron patterns onto the substrate to form thin-film crystal film polarizers, and the substrate may be glass or plastic.

[0046] By adopting the self - aggregating nanomaterial treatment technology, not only can the thickness (the distance between the upper surface and the lower surface) of the first polarizer 21 and the second polarizer 51 be reduced, which is beneficial to the thinning of the display device, but also the complexity of the manufacturing process and the manufacturing cost can be reduced. In addition, the thin - film crystal - film polarizer also has excellent high - temperature resistance characteristics and a wider viewing angle, thereby reducing the occurrence of large - viewing - angle color shift and improving the display quality.

[0047] The display medium layer 4 may include a plurality of liquid - crystal cell structures 41 arranged at intervals. In the first direction, for each pixel light - emitting unit 12, a first polarizer 21, a liquid - crystal cell structure 41, a second polarizer 51, and a color - resist block 62 may be correspondingly arranged. The first polarizer 21, the liquid - crystal cell structure 41, the second polarizer 51, and the color - resist block 62 corresponding to each pixel light - emitting unit 12 may form a liquid - crystal display unit corresponding to the pixel light - emitting unit 12. The projection range of each liquid - crystal display unit on the organic light - emitting layer 1 may be located within the corresponding pixel light - emitting unit 12.

[0048] Specifically, the display medium layer 4 may include a first alignment layer 42 and a second alignment layer 43 which are arranged on both sides of the liquid - crystal cell structure 41 and are oppositely arranged. The liquid - crystal cell structure 41 may include a liquid - crystal cell 411 formed by an isolation and support structure enclosing a first opening and a second opening. The first opening may be in communication with the second opening. The liquid - crystal cell 411 may be filled with liquid crystal 412. The liquid crystal 412 has a polarization effect and can deflect different angles under different electric - field actions. For example, it can deflect the Y - direction polarized light into the Z - direction polarized light. The liquid crystal 412 may be a positive liquid crystal or a negative liquid crystal, etc. The present application does not particularly limit the type of the liquid crystal 412. The isolation and support structure can not only seal the liquid crystal 412 to prevent the leakage of the liquid crystal 412, but also ensure the cell thickness of the liquid - crystal cell 411 and improve the compressive resistance of the display module. The isolation and support structure may be prepared from a black organic photoresist material, thereby blocking light scattering and improving the utilization rate of light. In some embodiments, the isolation and support structure may select the same preparation material as the black matrix 63, thereby reducing the manufacturing complexity and the manufacturing cost.

[0049] The first alignment layer 42 and the second alignment layer 43 can be used to guide the alignment direction of the liquid crystal 412, so that the liquid crystal 412 maintains a certain pre - tilt angle, thereby improving the alignment stability of the liquid crystal 412 and the deflection speed of the liquid crystal 412, and further improving the display effect. The materials of the first alignment layer 42 and the second alignment layer 43 may be polyimide (PI). Of course, the materials of the first alignment layer 42 and the second alignment layer 43 may also be selected according to actual needs.

[0050] Refer to Figure 1, taking the first opening as the lower opening and the second opening as the upper opening as an example, the first opening can face the first polarizer 21, the second opening can face the second polarizer 51, and the cross-sectional area of the liquid crystal cell 411 can gradually decrease along the first direction. That is to say, in the second direction (the second direction is the Figure 1 Y-axis direction in

[0051] Figure 2 i.e., from left to right), the width of the first opening is greater than the width of the second opening. On the one hand, this can constrain the light entering the liquid crystal cell structure 41 from the pixel light-emitting unit 12, making the light more concentrated, so as to improve the gray level of the display module, and further improve the layering of the display screen. On the other hand, this can also reduce the manufacturing difficulty of the isolation support structure to improve the manufacturing efficiency of the display module. Figure 1 is the first top view schematic diagram of the liquid crystal cell structure shown. Refer to Figure 1 and Figure 2 , the size of the first opening can match the first polarizer 21, the size of the second opening can match the second polarizer 51, the width of the first polarizer 21 can be greater than the width of the second polarizer 51. Exemplarily, the width of the first polarizer 21 can be half of the pixel light-emitting unit 12, and the width of the second polarizer 51 can be half of the width of the corresponding color resist block 62. This can make the light enter the liquid crystal cell structure 41 as much as possible after passing through the first polarizer 21, improve the light incident rate of the liquid crystal cell structure 41, and make the light exiting the liquid crystal cell structure 41 pass through the second polarizer 51 as much as possible, improving the utilization rate of light.

[0052] It should be noted that the widths of the first polarizer 21 and the second polarizer 51 can be set according to actual needs. For example Figure 3 when the width and position of the liquid crystal cell structure 41 in Figure 2 and Figure 3 change, in order to improve the reliability of gray level adjustment of the display module, the sizes and positions of the first polarizer 21 and the second polarizer 51 also need to change adaptively to achieve a better gray level adjustment effect. Among them,

[0053] Figure 4 is the structural schematic diagram of the liquid crystal driving layer and the display medium layer provided by the embodiment of the present application. As shown in Figure 4As shown, the liquid crystal driving layer 3 may include an array substrate 31 and a plurality of liquid crystal driving units 32 disposed on the array substrate 31. The liquid crystal driving units 32 may correspond to the liquid crystal cell structures 41 one by one. The liquid crystal driving units 32 may include a plurality of first electrodes 321 and a plurality of second electrodes 322 disposed in the same layer. Among them, the first electrode 321 may be a pixel electrode with a positive polarity, and the second electrode 322 may be a common electrode with a negative polarity. The number of the first electrodes 321 and the second electrodes 322 may be equal or close. Refer to Figure 4 , the first alignment layer 42 may be covered on the array substrate 31 and the liquid crystal driving units 32 to reduce the film layer thickness.

[0054] When the liquid crystal driving layer 3 drives the liquid crystal 412 to deflect, the first electrode 321 and the second electrode 322 may generate a transverse electric field under the drive of the working voltage, so as to drive the liquid crystal 412 located within the action range of the transverse electric field to deflect. The intensity of the working voltage and the degree of deflection of the liquid crystal 412 may be proportional. The materials of the first electrode 321 and the second electrode 322 may be ITO to improve the light transmittance.

[0055] Compared with the liquid crystal driving method of the twisted nematic (TN) type in which the pixel electrode layer and the common electrode layer are disposed on both sides of the liquid crystal, the liquid crystal driving layer 3 in the embodiment of the present application can reduce the thickness of the display module and improve the color expressiveness of the display screen. Considering that the preparation cost of the TN type is relatively low, in some embodiments, the liquid crystal driving method of the TN type may also be adopted. The pixel electrode layer may be disposed on the upper surface of the first polarizing layer 2 in the embodiment of the present application, and the common electrode layer may be disposed between the second alignment layer and the second polarizing layer 5.

[0056] Exemplarily, the display module may transmit voltage data to the first electrode 321 and the second electrode 322 through the metal lines on the array substrate 31 according to the voltage data of each sub-pixel light-emitting region corresponding to the image to be displayed, so as to control the working voltage applied to the first electrode 321 and the second electrode 322, thereby controlling the intensity of the transverse electric field to control the degree of deflection of the liquid crystal 412, and further controlling the light transmittance of the liquid crystal cell structure 41 (the amount of light emitted from the liquid crystal cell structure 41) to realize the adjustment of the gray scale of the color channel corresponding to each sub-pixel light-emitting region.

[0057] See Figure 5, when the screen is being displayed, for any sub-pixel light-emitting region, the pixel light-emitting unit 12 emits light by itself. A first part of the light can directly pass through the color filter layer 6. After passing through the light filtering effect of the color resistance block 62, red / green / blue light is displayed in the sub-pixel light-emitting region. A second part of the light is blocked and absorbed by the black matrix 63 and cannot pass through the color filter layer 6. A third part of the light irradiates onto the isolation support structure and is blocked and absorbed by the isolation support structure and cannot pass through the color filter layer 6. A fourth part of the light can enter the liquid crystal cell structure 41 after passing through the first polarizer 21. The display module can control whether the fourth part of the light can pass through the liquid crystal cell structure 41 and the amount of light passing through the liquid crystal cell structure 41 according to the gray-scale brightness of each sub-pixel light-emitting region corresponding to the image to be displayed. Figure 5 Exemplarily, taking the case where the fourth part of the light can pass through the liquid crystal cell structure 41 as an example for explanation, after the fourth part of the light passes through the liquid crystal cell structure 41, it passes through the second polarizer 51 and passes through the color filter layer 6, and jointly acts with the first part of the light in this sub-pixel light-emitting region to display the gray-scale brightness corresponding to the image to be displayed in this sub-pixel light-emitting region.

[0058] It should be noted that the first part of the light, the second part of the light, the third part of the light, and the fourth part of the light are only used to represent different propagation directions of the light, rather than representing the sequence of the light and the amount of the light.

[0059] By controlling the brightness of each sub-pixel light-emitting region, the display screen can further refine the brightness level on the basis of the original gray-scale adjustment, achieving 512 gray scales, 1024 gray scales or even higher. As a result, the brightness level relationship and the stepped brightness can be made richer. Reflected on the display screen, the gray-scale levels are more distinct, the transition between adjacent gray scales is more natural, the black-and-white contrast ratio is higher. Correspondingly, the colors of the screen are more rich, delicate and accurate, and thus the display quality can be improved.

[0060] In addition, in a low-light environment, the display module described in the embodiment of the present application can also reduce the brightness of the display screen by making the liquid crystal 412 not deflect and only allowing part of the light of the pixel light-emitting unit 12 to pass through the color filter layer 6, so as to facilitate the implementation of the night mode. Correspondingly, in a strong-light environment, the display module can also make the light normally pass through the liquid crystal cell structure 41, so that the display screen can be clearly seen even in a strong-light environment.

[0061] A display module provided by an embodiment of the present application, the display module includes: an organic light-emitting layer, a first polarizing layer, a liquid crystal driving layer, a display medium layer, a second polarizing layer, and a color filter layer stacked along a first direction; the first polarizing layer includes a plurality of first polarizers arranged at intervals, the display medium layer includes a plurality of liquid crystal cell structures arranged at intervals, the second polarizing layer includes a plurality of second polarizers arranged at intervals, the polarization directions of the first polarizer and the second polarizer are perpendicular, and the color filter layer includes a plurality of color resist blocks arranged at intervals; the organic light-emitting layer includes a plurality of pixel light-emitting units, and each pixel light-emitting unit is correspondingly provided with a first polarizer, a liquid crystal cell structure, a second polarizer, and a color resist block in the first direction. The first polarizer, the liquid crystal cell structure, the second polarizer, and the color resist block corresponding to each pixel light-emitting unit form a liquid crystal display unit corresponding to the pixel light-emitting unit, and the projection range of each liquid crystal display unit on the organic light-emitting layer is located within the corresponding pixel light-emitting unit. The display module provided by the embodiment of the present application can control the brightness of the display gray level corresponding to each pixel light-emitting unit, so that the display screen can perform gray level display more finely, thereby improving the layering and contrast of the display screen.

[0062] Based on the same inventive concept, an embodiment of the present application further provides a display device Figure 6 is a schematic structural diagram of the display device provided by the embodiment of the present application. As Figure 6 shown, the display device may include: a driving circuit 100 and the display module 200 described in any of the above embodiments. The driving circuit 100 may be electrically connected to the display module 200 for driving the display module 200 to display a picture.

[0063] Since the display device in this embodiment includes the display module in the above embodiment, that is, the display device in this embodiment has all the technical features and technical effects of the embodiment of the above display module. For details, refer to the above embodiment and will not be repeated here.

[0064] It should be understood that in the description of the specification and the appended claims of the present application, the terms "include", "comprise", "have" and any deformation thereof are intended to cover non-exclusive inclusion, all meaning "including but not limited to", unless otherwise specifically emphasized in other ways.

[0065] In the description of the present application, unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship. For example, A / B may represent A or B; the "and / or" in the present application is used to describe the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. These three situations, where A and B may be singular or plural.

[0066] Also, in the description of the present application, unless otherwise specified, "a plurality of" means two or more than two. "At least one of the following" or its similar expressions refer to any combination of these items, including any combination of single items or plural items.

[0067] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0068] In the present application, unless otherwise clearly specified and defined, terms such as "connected" and "linked" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0069] In addition, in the description of the specification and claims of the present application, terms such as "first", "second", etc. are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments described here can be implemented in an order other than that shown or described here; the features defined with "first" and "second" can explicitly or implicitly include at least one such feature.

[0070] In the embodiments of the present application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, the use of words such as "exemplarily" or "for example" is intended to present relevant concepts in a specific manner.

[0071] Reference to "one embodiment" or "some embodiments" etc. described in the specification of this application means that a specific feature, structure or characteristic described in connection with that embodiment is included in one or more embodiments of this application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments" etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0072] Finally, it should be noted that: The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit them; Although the technical solutions of this application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of each embodiment of this application.

Claims

1. A display module, characterized in that, Comprising: An organic light-emitting layer, a first polarizing layer, a liquid crystal driving layer, a display medium layer, a second polarizing layer, and a color filter layer stacked in a first direction; The first polarizing layer includes a plurality of first polarizers arranged at intervals, the display medium layer includes a plurality of liquid crystal cell structures arranged at intervals, the second polarizing layer includes a plurality of second polarizers arranged at intervals, the polarization directions of the first polarizer and the second polarizer are perpendicular, and the color filter layer includes a plurality of color resist blocks arranged at intervals; The organic light-emitting layer includes a plurality of pixel light-emitting units, and each of the pixel light-emitting units is correspondingly provided with the first polarizer, the liquid crystal cell structure, the second polarizer, and the color resist block in the first direction. The first polarizer, the liquid crystal cell structure, the second polarizer, and the color resist block corresponding to each pixel light-emitting unit form a liquid crystal display unit corresponding to the pixel light-emitting unit, and the projection range of each liquid crystal display unit on the organic light-emitting layer is located within the corresponding pixel light-emitting unit; wherein, the liquid crystal cell structure includes a liquid crystal cell and liquid crystal filled in the liquid crystal cell, the cross-sectional area of the liquid crystal cell gradually decreases in the first direction, the first opening of the liquid crystal cell faces the corresponding first polarizer and the size of the first opening matches the size of the corresponding first polarizer, the second opening of the liquid crystal cell faces the corresponding second polarizer and the size of the second opening matches the size of the corresponding second polarizer; in a second direction, the width of the first polarizer is greater than the width of the second polarizer in the second direction, the width of the first polarizer is half of the pixel light-emitting unit, the width of the second polarizer is half of the width of the corresponding color resist block, and the first direction is perpendicular to the second direction.

2. The display module according to claim 1, wherein The display medium layer further includes a first alignment layer and a second alignment layer oppositely arranged on both sides of the liquid crystal cell structure, and an isolation support structure supported between the first alignment layer and the second alignment layer encloses the liquid crystal cell.

3. The display module according to claim 2, wherein The isolation support structure is made of a black organic photoresist material.

4. The display module according to claim 1, wherein, The first polarizer and the second polarizer are thin crystal film polarizers prepared from self-polymerized nanomaterials.

5. The display module according to claim 1, wherein The liquid crystal driving layer includes a plurality of liquid crystal driving units corresponding one-to-one to the liquid crystal cell structures, and each liquid crystal driving unit includes a first electrode and a second electrode for deflecting liquid crystal.

6. The display module according to claim 5, wherein The materials of the first electrode and the second electrode are ITO.

7. The display module according to any one of claims 1-6, characterized in that, The first polarizing layer further includes a first polarizing flat layer covering the organic light-emitting layer and each of the first polarizers; The second polarizing layer further includes a second polarizing flat layer covering the color filter layer and the second polarizers.

8. A display device, characterized in that, Comprising: A driving circuit and a display module as described in any one of claims 1-7, the driving circuit is electrically connected to the display module for driving the display module to display a picture.

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