Display module and display device

Abstract

The application discloses a display module and a display device. The display module comprises an array substrate, a color resistance layer, a polarizing component, a common electrode layer, a touch layer, and a control circuit. The array substrate comprises a substrate and the color resistance layer. The polarizing component is arranged on the side of the color resistance layer away from the substrate and comprises a polarizing layer and the common electrode layer arranged on the surface of the polarizing layer close to the array substrate. The common electrode layer comprises at least a first protective layer and a conductive layer. The polarizing component further comprises the touch layer arranged on the side of the polarizing layer away from the color resistance layer. The common electrode layer is electrically connected with the control circuit to transmit a common voltage signal during a display period and serve as a touch sensing layer during a touch detection period. The display period and the touch detection period are alternately performed. The above arrangement can solve the problems of the display panel, such as difficulty in thinning, complex alignment process, high cost, uneven Vcom voltage distribution, and RC signal delay leading to edge flicker of the display panel. The polarizing component has the functions of touch and Vcom signal transmission, thereby facilitating more use requirements.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display module and a display device. Background Technology

[0002] In related technologies, liquid crystal panels are typically assembled from an array substrate and a color filter substrate. A color filter layer and a black matrix layer are usually disposed on the color filter substrate. Furthermore, a common electrode layer (Vcom layer) is usually disposed on the surface of the color filter substrate near the array substrate for Vcom signal transmission.

[0003] However, the aforementioned LCD panel structure requires precise alignment and bonding of the array substrate and the color filter substrate, which is complex and has limited yield. Inaccurate alignment can lead to color shift or crosstalk. The display panel is also relatively thick, making it difficult to meet the requirements for thinner and lighter applications. At the same time, the Vcom signal transmission path is relatively long, which can easily lead to Vcom signal instability and uneven Vcom voltage distribution, resulting in signal delay (RC delay) and causing flickering at the edges of large-size display panels. Summary of the Invention

[0004] This application mainly provides a display module and a display device to solve the problems of display panels in related technologies, such as difficulty in achieving thinness and lightness, complex alignment process, high cost, uneven Vcom voltage distribution, and flickering at the edges of the display panel caused by RC signal delay.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a display module, comprising: An array substrate includes a substrate and a color resist layer disposed on one side of the substrate; the color resist layer includes a plurality of color resists spaced apart from each other. A polarizing assembly is disposed on the side of the color resist layer away from the substrate, including a polarizing layer and a common electrode layer disposed on at least the surface of the polarizing layer near the array substrate; the common electrode layer includes at least a first protective layer and the conductive layer, wherein the first protective layer is disposed on one side of the conductive layer; A liquid crystal layer is disposed between the array substrate and the polarizing component; A frame adhesive is disposed between the array substrate and the polarizing component, and is located around the liquid crystal layer. The frame adhesive connects the array substrate and the polarizing component. The polarizing layer is used to support the common electrode layer; The polarizing component further includes a touch layer disposed on the side of the polarizing layer opposite to the color resist layer; or, the common electrode layer includes a plurality of common electrode blocks, the common electrode layer being electrically connected to the control circuit to transmit a common voltage signal during the display period and to serve as a touch sensing layer during the touch detection period, wherein the display period and the touch detection period alternate.

[0006] In some embodiments, the common electrode layer includes the first protective layer, the conductive layer, and the second protective layer; The first protective layer is disposed on the side of the conductive layer near the polarizing layer, and the second protective layer is disposed on the side of the conductive layer away from the polarizing layer; wherein, the material of the first protective layer includes silicon dioxide, and the material of the second protective layer includes UV-curable acrylic resin; or, the material of the first protective layer includes UV-curable acrylic resin, and the material of the second protective layer includes silicon dioxide; or, the first protective layer is a stacked layer of niobium pentoxide and silicon dioxide, and the material of the second protective layer includes UV-curable acrylic resin; or, the material of the first protective layer includes UV-curable acrylic resin, and the second protective layer is a stacked layer of niobium pentoxide and silicon dioxide; or, the material of the first protective layer includes silicon dioxide, and the second protective layer is a stacked layer of niobium pentoxide and silicon dioxide; or, the first protective layer is a stacked layer of niobium pentoxide and silicon dioxide, and the material of the second protective layer includes silicon dioxide. Alternatively, the first protective layer is disposed on the side of the conductive layer away from the polarizing layer, and the second protective layer is disposed on the side of the first protective layer away from the conductive layer; wherein the material of the first protective layer includes silicon dioxide, and the material of the second protective layer includes UV-curable acrylic resin; or, the first protective layer is a stacked layer of niobium pentoxide layer and silicon dioxide layer, and the material of the second protective layer includes UV-curable acrylic resin.

[0007] In some embodiments, the first protective layer is disposed on the side of the conductive layer closer to the polarizing layer, and the second protective layer is disposed on the side of the conductive layer away from the polarizing layer; The common electrode layer further includes a polyester film layer and a first pressure-sensitive adhesive layer stacked together; the polyester film layer is disposed on the side of the first protective layer away from the conductive layer, and the first pressure-sensitive adhesive layer is disposed on the side of the polyester film layer close to the polarizing layer, and the first pressure-sensitive adhesive layer is used to adhere the common electrode layer to the polarizing layer.

[0008] In some embodiments, the common electrode layer includes a first protective layer, a conductive layer, a second protective layer, and a third protective layer stacked sequentially, wherein the first protective layer is disposed on the side of the conductive layer near the polarizing layer; wherein the material of the first protective layer includes silicon dioxide, the second protective layer is a stacked layer of niobium pentoxide layer and silicon dioxide layer, and the material of the third protective layer includes UV-curable acrylic resin. Alternatively, the common electrode layer includes a first protective layer, a second protective layer, the conductive layer, and a third protective layer stacked sequentially, with the first protective layer disposed on the side of the second protective layer near the polarizing layer; wherein, the first protective layer is a stacked layer of niobium pentoxide and silicon dioxide, the material of the second protective layer includes UV-curable acrylic resin, and the material of the third protective layer includes silicon dioxide; Alternatively, the common electrode layer may include the conductive layer, the first protective layer, the second protective layer, and the third protective layer stacked sequentially, wherein the first protective layer is disposed on the side of the conductive layer away from the polarizing layer; wherein the material of the first protective layer includes silicon dioxide, the second protective layer is a stacked layer of niobium pentoxide and silicon dioxide, and the material of the third protective layer includes UV-curable acrylic resin.

[0009] In some embodiments, the common electrode layer includes the first protective layer and the conductive layer; The first protective layer is disposed on the side of the conductive layer near the polarizing layer; wherein, the material of the first protective layer includes UV-curable acrylic resin, or, the material of the first protective layer includes silicon dioxide; Alternatively, the first protective layer is disposed on the side of the conductive layer away from the polarizing layer; wherein the material of the first protective layer includes UV-curable acrylic resin, or the material of the first protective layer includes silicon dioxide.

[0010] In some embodiments, the array substrate further includes a black matrix layer disposed on one side of the substrate, the black matrix layer comprising a plurality of black matrices located between adjacent color resists; wherein the width of the black matrix is ​​8-13 μm; The conductive layer is a patterned metal mesh structure; the patterned metal mesh structure is a mesh-shaped metal tungsten, molybdenum or rhenium formed by 3D printing process, or the patterned metal mesh structure is a metal mesh structure formed by nanoimprinting silver filling process; Alternatively, the conductive layer may be a layer of silver nanowires formed by coating or printing.

[0011] And / or, the display module is a flexible display module, and the polarizing component is a flexible polarizing component.

[0012] In some embodiments, the polarizing component includes the touch layer disposed on the side of the polarizing layer opposite to the array substrate; The touch layer includes a first electrode layer, a substrate layer, and a second electrode layer stacked sequentially, wherein the first electrode layer is located on the surface of the substrate layer near the polarizing layer. Wherein, the first electrode layer is any one of a patterned metal mesh structure, a coated or printed layer of silver nanowires; and / or, the second electrode layer is any one of a patterned metal mesh structure, a coated or printed layer of silver nanowires. The patterned metal mesh structure is a mesh-like structure of tungsten, molybdenum, or rhenium formed by 3D printing, or the patterned metal mesh structure is a metal mesh structure formed by nanoimprinting silver filling process.

[0013] In some embodiments, the common electrode layer is used to be electrically connected to the control circuit to transmit a common voltage signal during the display period and to serve as a touch sensing layer during the touch detection period. The polarizing layer has a portion of the common electrode layer on both the surface near the array substrate and the surface away from the array substrate. The portion of the common electrode layer on the surface of the polarizing layer near the array substrate is electrically connected to the portion of the common electrode layer on the surface of the polarizing layer away from the array substrate.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a display device, comprising: Any of the display modules described above; A backlight module is disposed on one side of the display module and is used to provide backlight for the display module.

[0015] In some embodiments, the common electrode layer includes a plurality of the common electrode blocks; The display device further includes a control circuit, which is electrically connected to the common electrode layer; the control circuit is used for: During the display period, a DC voltage is applied to the common electrode layer; during the touch detection period, an AC voltage is applied to the common electrode layer to use the common electrode layer as a touch sensing layer; wherein the display period and the touch detection period alternate.

[0016] The beneficial effects of this application are as follows: Unlike existing technologies, this application discloses a display module and a display device. The display module includes: an array substrate, comprising a substrate and a color resist layer disposed on one side of the substrate; the color resist layer includes a plurality of spaced-apart color resists; a polarizing component disposed on the side of the color resist layer away from the substrate, including a polarizing layer and a common electrode layer disposed on the surface of the polarizing layer near the array substrate; the common electrode layer includes at least a first protective layer and a conductive layer, the first protective layer being disposed on one side of the conductive layer; a liquid crystal layer disposed between the array substrate and the polarizing component; a frame adhesive disposed between the array substrate and the polarizing component, and located around the liquid crystal layer, the frame adhesive connecting the array substrate and the polarizing component; wherein the polarizing layer is used to support the common electrode layer; the polarizing component further includes a touch layer disposed on the side of the polarizing layer away from the color resist layer; or, the common electrode layer includes a plurality of common electrode blocks, the common electrode layer being used to electrically connect with a control circuit to transmit a common voltage signal during the display period and to act as a touch sensing layer during the touch detection period, wherein the display period and the touch detection period alternate. The above-mentioned design effectively solves the problems of display panels being difficult to make thinner and lighter, complex alignment processes, high costs, uneven Vcom voltage distribution, and flickering at the edges of the display panel caused by RC signal delay. It helps to shorten the transmission path of the Vcom signal, improve the uniformity of Vcom voltage distribution, and simultaneously reduce the thickness and weight of the display module, lower production and process costs, simplify the process flow, and improve product yield, thereby improving the display effect. Furthermore, by simultaneously setting a touch layer and a common electrode layer on both sides of the polarizing component, or by using the common electrode layer for common voltage signal transmission during the display period and as a touch sensing layer during the touch detection period, the polarizing component can simultaneously possess touch functionality and Vcom signal transmission functionality. This multi-functional integrated design of the polarizing component broadens its application range, expands the application scope of the display module, meets more usage needs, and also helps improve the performance of the display module. Moreover, the common electrode layer includes at least a first protective layer and a conductive layer, with the first protective layer protecting the conductive layer from damage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the structure of the display module provided in the first embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a first embodiment; Figure 3 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a second embodiment; Figure 4 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a third embodiment; Figure 5 yes Figure 1 A schematic diagram of the fourth embodiment of the polarizing component of the provided display module; Figure 6 yes Figure 1 A schematic diagram of the fifth embodiment of the polarizing component of the provided display module; Figure 7 yes Figure 1 A schematic diagram of the sixth embodiment of the polarizing component of the provided display module; Figure 8 yes Figure 1 A schematic diagram of the seventh embodiment of the polarizing component of the provided display module; Figure 9 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in an eighth embodiment; Figure 10 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a ninth embodiment; Figure 11 yes Figure 1 A schematic diagram of the tenth embodiment of the polarizing component of the provided display module; Figure 12 yes Figure 1 A schematic diagram of the eleventh embodiment of the polarizing component of the provided display module; Figure 13 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in the twelfth embodiment; Figure 14 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a thirteenth embodiment; Figure 15 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module according to the fourteenth embodiment; Figure 16 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module according to the fifteenth embodiment; Figure 17 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a sixteenth embodiment; Figure 18 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module according to the seventeenth embodiment; Figure 19 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in the eighteenth embodiment; Figure 20 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in the nineteenth embodiment; Figure 21 This is a schematic diagram of the structure of the display module provided in the second embodiment of this application; Figure 22 yes Figure 21 A schematic diagram of one embodiment of the polarizing component of the provided display module; Figure 23 This is a schematic diagram of a module of an embodiment of the display device provided in the third embodiment of this application; Figure 24 yes Figure 23 A schematic diagram of one embodiment of the provided display device.

[0018] Icon labels: 400, Display device; 300, Control circuit; 200, Backlight module; 100, Display module; 1, Array substrate; 11, Substrate; 12, Color resist layer; 121, Color resist; 13, Black matrix layer; 131, Black matrix; 14, Driving circuit layer; 15, Frame adhesive; 16, Transparent conductive layer; 17, Conductive component; 18, Support pillar; 2, Polarizing assembly; 21, Polarizing layer; 211, Polyvinyl alcohol layer; 212, Second... 213. Pressure-sensitive adhesive layer; 214. Cellulose triacetate layer; 22. Polymethyl methacrylate layer; 22. Common electrode layer; 221. Conductive layer; 222. First protective layer; 223. Second protective layer; 224. Third protective layer; 225. Polyester film layer; 226. First pressure-sensitive adhesive layer; 23. Touch layer; 231. First electrode layer; 232. Substrate layer; 233. Second electrode layer; 3. Liquid crystal layer; 4. Polarizing element. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] See Figures 1 to 22 , Figure 1 This is a schematic diagram of the structure of the display module provided in the first embodiment of this application. Figure 2 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a first embodiment. Figure 3 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a second embodiment. Figure 4 yes Figure 1 A schematic diagram of the third embodiment of the polarizing component of the provided display module. Figure 5 yes Figure 1 A schematic diagram of the fourth embodiment of the polarizing component of the provided display module. Figure 6 yes Figure 1 A schematic diagram of the fifth embodiment of the polarizing component of the provided display module. Figure 7 yes Figure 1 A schematic diagram of the sixth embodiment of the polarizing component of the provided display module. Figure 8 yes Figure 1 A schematic diagram of the seventh embodiment of the polarizing component of the provided display module. Figure 9 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in the eighth embodiment. Figure 10 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a ninth embodiment. Figure 11 yes Figure 1 A schematic diagram of the tenth embodiment of the polarizing component of the provided display module. Figure 12 yes Figure 1 A schematic diagram of the eleventh embodiment of the polarizing component of the provided display module. Figure 13 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in the twelfth embodiment. Figure 14 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a thirteenth embodiment. Figure 15 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in the fourteenth embodiment. Figure 16 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module according to the fifteenth embodiment. Figure 17 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in a sixteenth embodiment. Figure 18 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in the seventeenth embodiment. Figure 19 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in the eighteenth embodiment. Figure 20 yes Figure 1 A schematic diagram of the structure of the polarizing component of the provided display module in its nineteenth embodiment. Figure 21 This is a schematic diagram of the structure of the display module provided in the second embodiment of this application. Figure 22 yes Figure 21 A schematic diagram of one embodiment of the polarizing component of the provided display module.

[0023] See Figure 1 and Figure 21 This application provides a display module 100, which includes an array substrate 1 and a polarizing component 2 disposed opposite to each other.

[0024] Specifically, the array substrate 1 includes a substrate 11 and a color resist layer 12 (i.e., a color filter layer) disposed on one side of the substrate 11. The color resist layer 12 includes a plurality of spaced-apart color resists 121. For example, the color resist layer 12 may include a plurality of red color resists, a plurality of green color resists, and a plurality of blue color resists, which are spaced apart to facilitate color display by the display module 100. In some embodiments, the plurality of color resists 121 in the color resist layer 12 of the array substrate 1 may be arranged in an array.

[0025] The polarizing component 2 is disposed on the side of the color resist layer 12 away from the substrate 11. The polarizing component 2 includes a polarizing layer 21 and a common electrode layer 22 disposed on the polarizing layer 21. Exemplarily, the common electrode layer 22 is disposed at least on the surface of the polarizing layer 21 near the color resist layer 12 of the array substrate 1, thereby integrating the common electrode layer 22 into the polarizing component 2. The polarizing layer 21 serves to support the common electrode layer 22, thus eliminating the need for a substrate to support the polarizing layer 21 and the common electrode layer 22. That is, the polarizing layer 21 here not only acts as a polarizer but also provides mechanical support, directly supporting the common electrode layer 22, thereby eliminating the need for a separate glass substrate to support the common electrode layer 22 and the polarizing layer 21 in conventional structures. In other embodiments, the common electrode layer 22 may also be disposed on the surface of the polarizing layer 21 away from the color resist layer 12. The common electrode layer 22 includes at least a first protective layer 222 and a conductive layer 221. The first protective layer 222 is disposed on one side of the conductive layer 221 to protect the conductive layer 221 and prevent the conductive layer 221 from being damaged or corroded, so as to ensure that the conductive layer 221 can achieve reliable common voltage (Vcom) signal transmission.

[0026] In some embodiments, the polarizing assembly 2 further includes a touch layer 23 disposed on the side of the polarizing layer 21 opposite to the color resist layer 12, the touch layer 23 being used to implement touch functionality; or, in some embodiments, the common electrode layer 22 includes a plurality of common electrode blocks (not shown), the common electrode layer 22 being used to connect with the control circuit 300 (see reference 100). Figure 23 The electrical connection is used to transmit a common voltage signal during the display period and to act as a touch sensing layer during the touch detection period to realize the touch function, wherein the display period and the touch detection period alternate.

[0027] A liquid crystal layer 3 is disposed between the array substrate 1 and the polarizing component 2. The liquid crystal layer 3 includes multiple liquid crystal molecules and fills the space between the array substrate 1 and the polarizing component 2, thus playing a role in light modulation. A sealant 15 is disposed between the array substrate 1 and the polarizing component 2, and is located around the liquid crystal layer 3. The sealant 15 connects the array substrate 1 and the polarizing component 2. The sealant 15 seals the array substrate 1 and the polarizing component 2, maintaining cell thickness and preventing external contamination.

[0028] It is understandable that by placing the color resist layer 12 on the array substrate 1, the polarizing component 2 is directly placed on the side of the color resist layer 12 away from the substrate 11, the frame adhesive 15 directly connects the polarizing component 2 to the array substrate 1, and the common electrode layer 22 is directly integrated on the polarizing layer 21, with the polarizing layer 21 supporting the common electrode layer 22. There is no need to set up a color filter substrate, which eliminates the substrate of the color filter substrate originally used to support the polarizing layer 21 and the common electrode layer 22. The resulting display module 100 is thinner, lighter, and has lower material costs, which is conducive to achieving a thin and light design. Meanwhile, by eliminating the color filter substrate and transferring the common electrode layer 22 (Vcom) to the polarizing layer 21, the distance between the common electrode layer 22 and the lines of the array substrate 1 is closer, and the common electrode layer 22 is positioned closer to the liquid crystal layer 3. This changes the transmission path of the Vcom signal, optimizes the resistance distribution of the entire display module 100, shortens the transmission path of the Vcom signal, directly reduces the resistance-capacitance load (RC loading) of the Vcom signal, significantly reduces parasitic capacitance, and allows the Vcom voltage to recover to a stable value more quickly after being charged by the pixels. This results in a more uniform distribution of the Vcom voltage, thereby significantly reducing screen crosstalk and effectively solving the problem of screen peripheral flicker caused by RC load delay. Moreover, the reduced load makes the driving capability of the Vcom signal stronger, providing the necessary electrical foundation for driving high-resolution, high-refresh-rate display panels. Meanwhile, the color filter layer 12 is disposed on the array substrate 1 (COA, Color Filter on Array), achieving self-alignment. This avoids the problem of high alignment accuracy requirements between the color filter substrate and the array substrate 1, which affects production yield, when the color filter layer 12 is disposed on the color filter substrate. It also avoids problems such as light leakage and pixel crosstalk, eliminates the bonding and alignment process, simplifies the production process, reduces process costs, and effectively improves product quality and yield. Furthermore, it can effectively increase the pixel aperture ratio, significantly improve the brightness and transmittance of the display module 100, and help reduce power consumption. Moreover, it can be applied to curved and flexible displays, effectively avoiding the problem of relative displacement between the traditional array substrate 1 and the color filter substrate due to bending, which helps to improve the problems of color mixing and uneven brightness in the picture.

[0029] The above-mentioned design effectively solves the problems of display panels being difficult to make thinner, complex alignment processes, high costs, uneven Vcom voltage distribution, and flickering at the edges of the display panel caused by RC signal delay. It helps to shorten the transmission path of the Vcom signal, improve the uniformity of Vcom voltage distribution, and simultaneously reduce the thickness and weight of the display module 100, lower production and process costs, simplify the process flow, and improve product yield, thereby improving the display effect. Furthermore, by simultaneously setting the touch layer 23 and the common electrode layer 22 on both sides of the polarizing component 2, or by using the common electrode layer 22 for common voltage signal transmission during the display period and as a touch sensing layer during the touch detection period, the polarizing component 2 can simultaneously possess touch functionality and Vcom signal transmission functionality. The polarizing component 2 achieves a multi-functional integrated design, broadening its application range, expanding the application scope of the display module 100, meeting more usage needs, and also improving the performance of the display module 100.

[0030] In some embodiments, the common electrode layer 22 includes a conductive layer 221. The conductive layer 221 may be a transparent conductive oxide layer; or, the conductive layer 221 may be a patterned metal mesh structure; or, the conductive layer 221 may be a layer of silver nanowires formed by coating or printing.

[0031] Specifically, the conductive layer 221 of the common electrode layer 22 is used for Vcom signal transmission. The conductive layer 221 can be any one of the following: a transparent conductive oxide layer, a patterned metal mesh structure, or a layer of silver nanowires formed by coating or printing. The transparent conductive oxide layer refers to a thin film of inorganic semiconductor material with high light transmittance and good conductivity. Common materials include indium tin oxide (ITO) and zinc oxide. This layer is usually formed by magnetron sputtering or vacuum evaporation processes and has excellent chemical stability and uniformity. The primary task of the common electrode layer 22 is to ensure display quality. Indium tin oxide itself is transparent and can be made into a complete "surface electrode," providing the most uniform electric field. The patterned metal mesh structure refers to a micron- or nanometer-scale mesh network composed of metallic materials. This structure is formed by photolithography, etching, or printing processes, and its design aims to maximize light transmittance while ensuring conductive connectivity. The material of the patterned metal mesh structure is not limited; for example, it can be a metal mesh structure made of copper, silver, or aluminum.

[0032] For example, the patterned metal mesh structure can also be a 3D-printed mesh of tungsten, molybdenum, or rhenium. The equipment and material costs are lower, and the process is shorter. Alternatively, the patterned metal mesh structure can be a metal mesh structure formed by nanoimprinting and silver filling. This structure has better flexibility, higher transmittance, and is more suitable for curved or flexible displays. The coated or printed nano-silver wire layer refers to a three-dimensional conductive network formed by randomly interwoven nano-silver wires with diameters in the nanometer range. The nano-silver wire layer is a full-surface structure. This layer is prepared using solution-based processes such as screen printing, inkjet printing, or blade coating. It has high flexibility and is more suitable for flexible display modules, facilitating the realization of flexible displays.

[0033] During operation, regardless of the material used, the conductive layer 221 serves as a common electrode to receive the Vcom signal and forms a uniform electric field on its surface to drive the liquid crystal molecules to deflect. Choosing a transparent conductive oxide layer can utilize its mature process and excellent uniformity to ensure the purity of the displayed image quality; choosing a patterned metal mesh structure can utilize its low sheet resistance characteristics, making it suitable for large-size panels with high driving capability requirements or those that need to replace ITO; choosing a silver nanowire layer can utilize its excellent flexibility and light transmittance, making it suitable for flexible or foldable display devices with extremely high bending performance requirements, and the solution process helps to reduce manufacturing costs.

[0034] It is understandable that by defining the conductive layer 221 as a transparent conductive oxide layer, the common electrode layer 22 possesses excellent film uniformity and chemical stability, thereby ensuring a highly consistent Vcom voltage distribution, effectively suppressing display unevenness and flickering, and guaranteeing long-term operational reliability. By defining the conductive layer 221 as a patterned metal mesh structure, the material usage and sheet resistance are reduced while maintaining high conductivity, further reducing the RC delay of the Vcom signal. This is beneficial for improving the driving speed and edge display consistency of large-size panels, while also reducing material costs. By defining the conductive layer 221 as a coated or printed nano-silver wire layer, the common electrode layer 22 possesses excellent flexibility and light transmittance, enabling the display module 100 to adapt to high curvature bending or folding deformation without breakage or performance degradation. This is beneficial for expanding flexible display applications, and the solution-based process simplifies the preparation process, helping to reduce production costs.

[0035] In some implementations, see Figure 2 The common electrode layer 22 may consist only of the conductive layer 221 and not other film structures. The conductive layer 221 may be directly formed on the surface of the polarizing layer 21 for Vcom signal transmission.

[0036] In other embodiments, the common electrode layer 22 may include not only the conductive layer 221, but also other protective film layers to protect the conductive layer 221.

[0037] For example, in some implementations, see Figures 3 to 12 The common electrode layer 22 includes a first protective layer 222, a conductive layer 221, and a second protective layer 223. Specifically, the first protective layer 222, the conductive layer 221, and the second protective layer 223 are stacked.

[0038] Specifically, in some implementation methods, see [link to implementation details]. Figures 3 to 10 A first protective layer 222 is disposed on the side of the conductive layer 221 near the polarizing layer 21, and a second protective layer 223 is disposed on the side of the conductive layer 221 away from the polarizing layer 21. That is, the conductive layer 221 is disposed between the first protective layer 222 and the second protective layer 223, and the first protective layer 222 is disposed between the conductive layer 221 and the polarizing layer 21, with the first protective layer 222 in contact with the polarizing layer 21. The first protective layer 222 and the second protective layer 223 are located on opposite sides of the conductive layer 221, i.e., the side near the polarizing layer 21 and the side away from the polarizing layer 21, respectively. This arrangement aims to provide physical isolation and environmental protection for the conductive layer 221. Specifically, the first protective layer 222, the conductive layer 221, and the second protective layer 223 can be sequentially formed on the surface of the polarizing layer 21. Various optional material combinations for the first protective layer 222 and the second protective layer 223 can be implemented.

[0039] Specifically, in some implementation methods, see [link to implementation details]. Figures 3 to 5 The first protective layer 222 is made of silicon dioxide (SiO2), and the second protective layer 223 is made of UV-curable acrylic resin. The first protective layer 222, being made of silicon dioxide, is a hard protective layer that significantly improves the surface hardness of the conductive layer 221, making it more scratch-resistant. Furthermore, the dense silicon dioxide film effectively blocks moisture and oxygen, preventing corrosion of the conductive layer 221. Simultaneously, silicon dioxide is also an excellent insulating material and can be used as an insulating layer to isolate different conductive film layers. The silicon dioxide layer can also be used for refractive index matching; utilizing the principle of optical interference, it can act as an anti-reflection layer (AR layer), reducing interface reflection and improving screen brightness and contrast. The second protective layer 223 is a hard coating (HC). The hard coating can provide comprehensive mechanical protection and performance assurance for the conductive layer 221 (such as the indium tin oxide layer), improve the surface hardness of the conductive layer 221, prevent the conductive layer 221 from being scratched, and enhance the bending and crack resistance of the common electrode layer 22. It can also serve as a barrier layer for gas or water vapor, and at the same time enhance the interlayer adhesion.

[0040] In other implementations, see Figure 6The first protective layer 222 is made of UV-curable acrylic resin, and the second protective layer 223 is made of silicon dioxide. In this embodiment, the first protective layer 222 is a hard coating (HC), and the second protective layer 223 is a rigid protective layer. The first protective layer 222 (hard coating) and the second protective layer 223 in the previous embodiment can achieve the same effect, and the second protective layer 223 (silicon dioxide layer) and the first protective layer 222 in the previous embodiment can achieve the same effect.

[0041] In other implementations, see Figure 7 The first protective layer 222 is a stacked layer of niobium pentoxide (Nb2O5) and silicon dioxide (SiO2). The first protective layer 222 is a refractive index matching layer (IM), an optical functional thin film whose core function is to eliminate or reduce the visibility of the conductive layer 221 using the principle of optical interference, thereby improving the optical performance of the display module 100. The second protective layer 223 is made of UV-curable acrylic resin and is a hard coating (HC). The function of the second protective layer 223 is the same as that of the hard coating in the above embodiment.

[0042] In other implementations, see Figure 8 The first protective layer 222 is made of UV-curable acrylic resin and is a hard coating (HC). The function of the first protective layer 222 is the same as that of the hard coating in the above embodiment. The second protective layer 223 is a stacked layer of niobium pentoxide and silicon dioxide. The second protective layer 223 is a refractive index matching layer (IM), which can utilize the principle of optical interference to eliminate or reduce the visibility of the conductive layer 221, thereby improving the optical performance of the display module 100.

[0043] In other implementations, see Figure 9 The first protective layer 222 is made of silicon dioxide and is a hard protective layer; the second protective layer 223 is a stacked layer of niobium pentoxide layer and silicon dioxide layer and is a refractive index matching layer (IM).

[0044] In other implementations, see Figure 10 The first protective layer 222 is a stacked layer of niobium pentoxide and silicon dioxide, and the first protective layer 222 is a refractive index matching layer (IM); the material of the second protective layer 223 includes silicon dioxide, and the second protective layer 223 is a hard protective layer.

[0045] In some implementations, see Figure 11 and Figure 12The first protective layer 222 is disposed on the side of the conductive layer 221 away from the polarizing layer 21, and the second protective layer 223 is disposed on the side of the first protective layer 222 away from the conductive layer 221. That is, the first protective layer 222 is disposed between the conductive layer 221 and the second protective layer 223, and the conductive layer 221 is in contact with the polarizing layer 21. The presence of two protective layers on the side of the conductive layer 221 away from the polarizing layer 21 can more effectively protect the conductive layer 221.

[0046] Specifically, in some implementation methods, see [link to implementation details]. Figure 11 The first protective layer 222 is made of silicon dioxide, and the second protective layer 223 is made of UV-curable acrylic resin. That is, the first protective layer 222 is a rigid protective layer, and the second protective layer 223 is a hard coating (HC). The functions of the silicon dioxide layer and the hard coating can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0047] In other implementations, see Figure 12 The first protective layer 222 is a stacked layer of niobium pentoxide and silicon dioxide, that is, the first protective layer 222 is a refractive index matching layer (IM). The material of the second protective layer 223 includes UV-curable acrylic resin, and the second protective layer 223 is a hard coating (HC). The functions of the refractive index matching layer and the hard coating can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0048] In some implementations, see Figure 13 The common electrode layer 22 may include not only the first protective layer 222, the conductive layer 221 and the second protective layer 223, but also a polyester film layer 225 and a first pressure-sensitive adhesive layer 226 (such as PSA). The polyester film layer 225 may be made of polyethylene terephthalate (PET) material.

[0049] Specifically, in some embodiments, a first protective layer 222 is disposed on the side of the conductive layer 221 closest to the polarizing layer 21, and a second protective layer 223 is disposed on the side of the conductive layer 221 furthest from the polarizing layer 21. The conductive layer 221 is located between the first protective layer 222 and the second protective layer 223. See also Figure 13A polyester film layer 225 is disposed on the side of the first protective layer 222 away from the conductive layer 221, and a first pressure-sensitive adhesive layer 226 is disposed on the side of the polyester film layer 225 close to the polarizing layer 21. The first pressure-sensitive adhesive layer 226 is used to adhere the common electrode layer 22 to the polarizing layer 21. That is, the polyester film layer 225 is disposed between the first pressure-sensitive adhesive layer 226 and the first protective layer 222. The first protective layer 222, the conductive layer 221, and the second protective layer 223 can be sequentially formed on one side surface of the polyester film layer 225. Then, the first pressure-sensitive adhesive layer 226 is formed on the other side surface of the polyester film layer 225. The first pressure-sensitive adhesive layer 226 of the common electrode layer 22 is attached to the surface of the polarizing layer 21, thereby integrating the common electrode layer 22 onto the polarizing layer 21 to form the polarizing component 2. The polyester film layer 225 can simultaneously provide support for the polarizing layer 21, which is beneficial to improving the structural strength and self-support of the polarizing component 2, and facilitates the improvement of the performance of the display module 100.

[0050] In some implementations, see Figures 14 to 16 The common electrode layer 22 can simultaneously include a first protective layer 222, a conductive layer 221, a second protective layer 223, and a third protective layer 224. That is, three protective layers can be provided simultaneously to protect the conductive layer 221. The protection effect of three protective layers is better, and the performance of the common electrode layer 22 is better. Among them, the positional relationship and materials of the above four film layer structure can be implemented in various ways.

[0051] Specifically, in some implementation methods, see [link to implementation details]. Figure 14 The common electrode layer 22 includes a first protective layer 222, a conductive layer 221, a second protective layer 223, and a third protective layer 224 stacked sequentially. The first protective layer 222 is located on the side of the conductive layer 221 closest to the polarizing layer 21, with both sides of the first protective layer 222 in contact with the polarizing layer 21 and the conductive layer 221, respectively. The third protective layer 224 is located on the side of the second protective layer 223 furthest from the conductive layer 221, and is the outermost layer of the common electrode layer 22. The first protective layer 222 is made of silicon dioxide and is a hard protective layer. The second protective layer 223 is a stacked layer of niobium pentoxide and silicon dioxide and is a refractive index matching layer (IM). The third protective layer 224 is made of UV-curable acrylic resin and is a hard coating layer (HC). The functions of the hard protective layer, refractive index matching layer, and hard coating layer are described in the above embodiments and will not be repeated here.

[0052] In other implementations, see Figure 15The common electrode layer 22 includes a first protective layer 222, a second protective layer 223, a conductive layer 221, and a third protective layer 224 stacked sequentially. The first protective layer 222 is disposed on the side of the second protective layer 223 near the polarizing layer 21. That is, both the first protective layer 222 and the second protective layer 223 are disposed on the side of the conductive layer 221 near the polarizing layer 21. The first protective layer 222 is located between the polarizing layer 21 and the second protective layer 223, and is in contact with the polarizing layer 21. The second protective layer 223 is located between the first protective layer 222 and the conductive layer 221. The conductive layer 221 is located between the second protective layer 223 and the third protective layer 224. The third protective layer 224 is located on the outermost side of the common electrode layer 22. In this design, the first protective layer 222 is a stacked layer of niobium pentoxide and silicon dioxide, and is a refractive index matching layer (IM). The second protective layer 223 is made of UV-curable acrylic resin and is a hard coating layer (HC). The third protective layer 224 is made of silicon dioxide and is a hard protective layer. Specifically, the functions of the refractive index matching layer, the hard coating layer, and the hard protective layer can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0053] In other implementations, see Figure 16 The common electrode layer 22 includes a conductive layer 221, a first protective layer 222, a second protective layer 223, and a third protective layer 224 stacked sequentially. The first protective layer 222 is disposed on the side of the conductive layer 221 away from the polarizing layer 21. That is, the first protective layer 222, the second protective layer 223, and the third protective layer 224 are all disposed on the side of the conductive layer 221 away from the polarizing layer 21. The conductive layer 221 is located between the polarizing layer 21 and the first protective layer 222 and is in direct contact with the polarizing layer 21. The second protective layer 223 is located between the first protective layer 222 and the third protective layer 224. The third protective layer 224 is located on the outermost side of the common electrode layer 22. The first protective layer 222 is made of silicon dioxide and is a hard protective layer; the second protective layer 223 is a stacked layer of niobium pentoxide and silicon dioxide and is a refractive index matching layer (IM); the third protective layer 224 is made of UV-curable acrylic resin and is a hard coating layer (HC). Specifically, the functions of the hard protective layer, the refractive index matching layer, and the hard coating layer can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0054] In some implementations, see Figures 17 to 20The common electrode layer 22 may consist only of a first protective layer 222 and a conductive layer 221, with the first protective layer 222 protecting the conductive layer 221. It is understood that by only providing the first protective layer 222, the thickness of the common electrode layer 22 can be smaller, and the corresponding thickness of the polarizing component 2 can be smaller, which is more conducive to achieving a thinner and lighter design, and also makes it easier to shorten the Vcom signal transmission path, thus improving display performance. The positional relationship and specific material combination of the first protective layer 222 and the conductive layer 221 can be implemented in various ways.

[0055] Specifically, in some implementation methods, see [link to implementation details]. Figure 17 and Figure 18 The first protective layer 222 is disposed on the side of the conductive layer 221 near the polarizing layer 21, and the first protective layer 222 is in contact with the polarizing layer 21. See also... Figure 17 In some embodiments, the material of the first protective layer 222 includes a UV-curable acrylic resin, and the first protective layer 222 is a hard coating (HC). See also Figure 18 In other embodiments, the first protective layer 222 is made of silicon dioxide, and the first protective layer 222 is a hard protective layer. Specifically, the specific functions of the hard coating layer and the hard protective layer can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0056] In other implementations, see Figure 19 and Figure 20 The first protective layer 222 is disposed on the side of the conductive layer 221 away from the polarizing layer 21, and the conductive layer 221 is directly in contact with the polarizing layer 21. See also... Figure 19 In some embodiments, the material of the first protective layer 222 includes a UV-curable acrylic resin, and the first protective layer 222 is a hard coating (HC). See also Figure 20 In other embodiments, the first protective layer 222 is made of silicon dioxide, and the first protective layer 222 is a hard protective layer. Specifically, the specific functions of the hard coating layer and the hard protective layer can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0057] In the above embodiments, for example, the thickness of the hard protective layer (i.e., the silicon dioxide layer) can be set in the range of 20-100 nm, for example, the thickness of the hard protective layer is 50 nm. The thickness of the hard coating (HC) can be set in the range of 1-4 μm, for example, the thickness of the hard coating is 2 μm. The thickness of the conductive layer 221 (such as an ITO layer) can be set in the range of 1000-1800 Å, for example, the thickness of the conductive layer 221 is 1300 Å. In the refractive index matching layer (IM), the thickness of the niobium pentoxide layer (Nb2O5) can be set in the range of 4-8 nm, and the thickness of the silicon dioxide layer (SiO2) can be set in the range of 60-80 nm, for example, the thickness of the niobium pentoxide layer (Nb2O5) in the refractive index matching layer (IM) is 6 nm, and the thickness of the silicon dioxide layer (SiO2) is 70 nm. In the above embodiments, the thickness of each film layer is set within the aforementioned range. The relatively small thickness of each film layer is beneficial for reducing the thickness of the polarizing component 2, thus facilitating a thinner and lighter design. Specifically, the thickness of each film layer can be designed or selected according to actual needs.

[0058] In some implementations, see Figures 2 to 20 The polarizing layer 21 of the polarizing component 2 includes a polyvinyl alcohol layer 211 (PVA) and a second pressure-sensitive adhesive layer 212 (such as PSA). In some embodiments, the polarizing layer 21 further includes any one or more of a triacetate cellulose layer 213 (TAC) and a polymethyl methacrylate layer 214 (PMMA).

[0059] Specifically, the second pressure-sensitive adhesive layer 212 is disposed between the polyvinyl alcohol layer 211 and the cellulose triacetate layer 213, or between the polyvinyl alcohol layer 211 and the polymethyl methacrylate layer 214. Both the cellulose triacetate layer 213 and the polymethyl methacrylate layer 214 can serve as protective layers in the polarizing layer 21, supporting and protecting the core polyvinyl alcohol layer 211. The specific film structure of the polarizing layer 21 can be designed and combined according to actual needs; this embodiment does not limit this design.

[0060] In some embodiments, the polymethyl methacrylate layer 214 or the cellulose triacetate layer 213 is disposed on the outermost side of the polarizing layer 21. A common electrode layer 22 with specific photoelectric properties can be directly formed on the surface of the polymethyl methacrylate layer 214 or the cellulose triacetate layer 213 away from the polyvinyl alcohol layer 211 by processes such as magnetron sputtering.

[0061] In some embodiments, the thickness of the cellulose triacetate layer 213 (TAC) is set in the range of 25-80 μm, for example, the thickness of the cellulose triacetate layer 213 is 60 μm. The thickness of the second pressure-sensitive adhesive layer 212 (such as PSA) is set in the range of 15-75 μm, for example, the thickness of the second pressure-sensitive adhesive layer 212 is 18 μm. The thickness of the polyvinyl alcohol layer 211 (PVA) is set in the range of 15-75 μm, for example, the thickness of the polyvinyl alcohol layer 211 is 20 μm. The thickness of the polymethyl methacrylate layer 214 (PMMA) is set in the range of 20-80 μm, for example, the thickness of the polymethyl methacrylate layer 214 is 60 μm. In specific implementations, the thickness of each of the above film layers can be designed or selected within the above range according to actual needs, which facilitates the realization of a thinner design.

[0062] In some embodiments, the array substrate 1 further includes a driving circuit layer 14, which is disposed on the side of the substrate 11 near the color resist layer 12. Exemplarily, the driving circuit layer 14 includes a plurality of thin-film transistors (TFTs) for driving and controlling the display module 100 to display images.

[0063] In some embodiments, the array substrate 1 further includes a black matrix layer 13 disposed on one side of the substrate 11. The black matrix layer 13 includes a plurality of black matrices 131, which are located between adjacent color resists 121. Specifically, the width of the black matrix 131 is 8-13 μm. For example, the width of the black matrix 131 can be a specific value such as 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, or 13 μm.

[0064] It is understandable that by placing the black matrix layer 13 on the array substrate 1 (BOA, BM on Array), the problems of light leakage and color mixing in the display module 100 caused by misalignment of the black matrix 131 due to misalignment between the color filter substrate and the array substrate 1 can be avoided when the black matrix layer 13 is placed on the color filter substrate. Moreover, by placing the black matrix layer 13 on the array substrate 1, there is no need to consider the alignment deviation between the two substrates, and the linewidth of the black matrix 131 can be set to be narrower. The narrower width of the black matrix 131 means that the area occupied by the light-blocking area is reduced, thereby increasing the proportion of the light-transmitting area. This can effectively improve the pixel aperture ratio, thereby facilitating the improvement of the brightness and transmittance of the display module 100, making the color mixing more uniform, which is beneficial to improving the contrast and image quality of the displayed picture, and also helps to reduce power consumption and improve energy efficiency. Meanwhile, the black matrix layer 13 is disposed on the array substrate 1. The black matrix layer 13 is closer to the driving circuit layer 14 of the array substrate 1, which can effectively block the backlight from irradiating the active layer of the thin film transistor, suppress light leakage current, improve the stability of the thin film transistor device and the contrast of the display module 100, and enable high PPI (Pixels Per Inch) and flexible display. The integrated design simplifies the structure of the display module 100, meets the pursuit of ultra-high pixel density by VR / AR and other devices, and is more suitable for the needs of curved and flexible displays.

[0065] In some implementations, see Figure 1 and Figure 21 The array substrate 1 further includes a transparent conductive layer 16 disposed on the side of the substrate 11 near the polarizing component 2. The display module 100 also includes a conductive element 17 disposed in the non-display area of ​​the display module 100 and located between the array substrate 1 and the polarizing component 2. The conductive element 17 electrically connects the transparent conductive layer 16 and the common electrode layer 22. For example, the conductive element 17 can be a conductive gold ball, and the transparent conductive layer 16 can be a transparent conductive oxide layer, such as an indium tin oxide (ITO) layer. The conductive gold ball conducts between the transparent conductive layer 16 and the common electrode layer 22 to transmit the Vcom signal. For example, when the protective layer is provided on the surface of the conductive layer 221 of the common electrode layer 22 of the polarizing assembly 2, the protective layer may not be provided at the position where the conductive element 17, such as the conductive gold ball, contacts the common electrode layer 22. The protective layer exposes the part of the conductive layer 221 of the common electrode layer 22 that is in contact with the conductive element 17, so as to achieve a stable electrical connection between the conductive element 17 and the conductive layer 221 of the common electrode layer 22. The protective layer may still be provided at other positions to protect the conductive layer 221 of the common electrode layer 22.

[0066] In some embodiments, the display module 100 further includes a support pillar 18 disposed within the display area and in contact with the polarizing component 2 to support the polarizing component 2, prevent the polarizing component 2 from denting, ensure the uniformity of the cell thickness of the display module 100, and thus facilitate the improvement of the display brightness and grayscale consistency of the display module 100. For example, the support pillar 18 may be disposed corresponding to the black matrix 131 of the array substrate 1, which can avoid blocking the light in the light-transmitting area and avoid affecting the pixel aperture ratio and display brightness.

[0067] In some implementations, see Figure 1 and Figure 21 The display module 100 also includes a polarizing element 4, which can be a polarizer. For example, the polarizing element 4 is disposed on the side of the array substrate 1 away from the polarizing assembly 2. Specifically, the polarizing element 4 is disposed on the surface of the substrate 11 of the array substrate 1 away from the color resist layer 12. In some embodiments, the polarizing element 4 is perpendicular to the polarization axis of the polarizing layer 21 of the polarizing assembly 2.

[0068] In the first embodiment, see Figure 1 The polarizing component 2 may consist only of a polarizing layer 21 and a common electrode layer 22. For example, the common electrode layer 22 may be directly formed on the surface of the polarizing layer 21 by deposition or other methods, thereby integrating the polarizing layer 21 and the common electrode layer 22 into a single unit to form the polarizing component 2. That is, the common electrode layer 22 may not include the first pressure-sensitive adhesive layer 226 (such as PSA), and may be formed by direct deposition on the surface of the polarizing layer 21; or, the common electrode layer 22 may include the first pressure-sensitive adhesive layer 226, and the common electrode layer 22 may be adhered to the surface of the polarizing layer 21 near the color resist layer 12 via its first pressure-sensitive adhesive layer 226, thereby forming the polarizing component 2.

[0069] In some embodiments, the common electrode layer 22 can be disposed on the side of the polarizing layer 21 near the color resist layer 12 of the array substrate 1. Specifically, the common electrode layer 22 is disposed on the surface of the polarizing layer 21 near the color resist layer 12 (i.e., the lower surface of the polarizing layer 21). It can be understood that compared to disposing the common electrode layer 22 on the surface of the polarizing layer 21 away from the color resist layer 12, disposing the common electrode layer 22 on the surface of the polarizing layer 21 near the color resist layer 12 brings the common electrode layer 22 closer to the liquid crystal layer 3 and the transparent conductive layer 16 of the array substrate 1. When the common electrode layer 22 is used for Vcom signal transmission, the Vcom signal transmission path can be shorter, thereby facilitating more effective reduction of RC load and more uniform Vcom voltage distribution, which can more effectively solve the problem of screen peripheral flicker caused by RC load delay.

[0070] Furthermore, in some embodiments, the common electrode layer 22 can serve as both a Vcom signal transmission layer and a touch sensing layer. Specifically, the common electrode layer 22 may include multiple common electrode blocks (not shown), each common electrode block can correspond to multiple color resists 121, and the common electrode blocks can serve as touch electrodes, thereby enabling the display module 100 to have touch functionality. Since the common electrode layer 22 is located on the surface (i.e., the lower surface) of the polarizing layer 21 near the color resist layer 12, the common electrode layer 22, as a touch sensing layer, can realize an In-cell Touch solution, simplifying the control circuit 300 of the display device 400 (e.g., ...). Figure 23 and Figure 24 The coordination difficulty (as shown in the figure).

[0071] Specifically, when the display module 100 is applied to the display device 400, the control circuit 300 of the display device 400 can control the common electrode layer 22 to perform time-division multiplexing. For example, during the display period, the control circuit 300 can apply a stable DC voltage (Vcom DC) to the common electrode layer 22, so that the common electrode layer 22 is used for Vcom signal transmission during the display period; during the touch detection period, the control circuit 300 can apply an AC voltage (Vcom AC) to the common electrode layer 22, so that the common electrode layer 22 is used as a touch sensing layer, so that the common electrode layer 22 is used for touch sensing during the touch detection period. For example, the common electrode layer 22 can be divided into multiple independent small common electrode blocks, each of which is both a common electrode of a pixel unit and an independent touch sensing unit. The control circuit 300 of the display device 400 can control the working mode of each common electrode block to perform precise timing control and realize the alternation of display scanning and touch scanning.

[0072] It is understandable that, through the above settings, the common electrode layer 22 can realize two different functions, namely Vcom signal transmission and touch sensing, in different time periods. This eliminates the need for a separate touch sensing layer in the display module 100, which is conducive to a thinner and lighter design, saves costs, improves the performance of the display module 100, broadens the application range of the display module 100, and meets more usage needs.

[0073] In other embodiments, the common electrode layer 22 may be partially disposed on the side of the polarizing layer 21 away from the array substrate 1 and partially disposed on the side of the polarizing layer 21 close to the array substrate 1. The portion of the common electrode layer 22 disposed on the side of the polarizing layer 21 close to the array substrate 1 is electrically connected to the other portion of the common electrode layer 22 disposed on the side of the polarizing layer 21 away from the array substrate 1. Specifically, the common electrode layer 22 may be partially disposed on the surface of the polarizing layer 21 away from the color resist layer 12 (i.e., the upper surface of the polarizing layer 21), and the other portion disposed on the surface of the polarizing layer 21 close to the color resist layer 12, with the two portions of the common electrode layer 22 electrically connected to each other. Specifically, in this embodiment, the common electrode layer 22 includes multiple common electrode blocks. The common electrode layer 22 is used to be electrically connected to the control circuit 300 to transmit a common voltage signal during the display period and to serve as a touch sensing layer during the touch detection period, wherein the display period and the touch detection period alternate.

[0074] In this embodiment, the two common electrode layers 22 disposed on both sides of the polarizing layer 21 can both serve as Vcom signal transmission layers and touch sensing layers. At this time, the part of the common electrode layer 22 located on the side of the polarizing layer 21 closer to the color resist layer 12 can still ensure that a stable electric field is formed between the common electrode layer 22 and the transparent conductive layer 16 of the array substrate 1 to drive the liquid crystal molecules during the display period; moreover, since the part of the common electrode layer 22 is located on the upper surface of the polarizing layer 21, and the polarizing component 2 is located at the top of the display module 100, an On-cell Touch solution can be realized during the touch detection period. It is understandable that by placing part of the common electrode layer 22 on the upper surface of the polarizing layer 21, the common electrode layer 22 serves as the outermost layer of the display module 100. When the common electrode layer 22 is used for touch sensing during the touch detection period, compared to placing the common electrode layer 22 only on the lower surface of the polarizing layer 21, the common electrode layer 22 located on the side of the polarizing layer 21 away from the color resist layer 12 will have stronger touch performance, higher touch sensitivity, and better touch effect.

[0075] In this embodiment, the portion of the common electrode layer 22 disposed on the side of the polarizing layer 21 near the color resist layer 12 and the portion of the common electrode layer 22 disposed on the side of the polarizing layer 21 away from the color resist layer 12 can be electrically connected using methods such as side traces. For example, the common electrode layer 22 can extend from the surface of the polarizing layer 21 near the color resist layer 12 to the side of the polarizing layer 21 and further extend to cover the surface of the polarizing layer 21 away from the color resist layer 12, thereby achieving electrical connection between the two portions of the common electrode layer 22. This allows for more efficient implementation of touch sensing function and higher touch sensitivity while meeting the requirement for closer transmission of Vcom signals. Alternatively, other metal side traces can be provided on the side of the polarizing layer 21 to achieve electrical connection between the two portions of the common electrode layer 22 on both sides of the polarizing layer 21. Alternatively, the two common electrode layers 22 located on both sides of the polarizing layer 21 can be electrically connected by means of conductive vias, etc. For example, vias can be provided in the polarizing layer 21, the vias penetrate the polarizing layer 21, and transparent conductive material can be filled in the vias to form transparent conductive elements, so that the two common electrode layers 22 located on both sides of the polarizing layer 21 can be electrically connected by the transparent conductive elements in the vias.

[0076] In this embodiment, one end of the conductive element 17 is electrically connected to the transparent conductive layer 16, and the other end is electrically connected to a portion of the common electrode layer 22 disposed on the polarizing layer 21 near the color resist layer 12. Similarly, in this embodiment, when the aforementioned protective layer is provided on the surface of the conductive layer 221 of the common electrode layer 22, the protective layer may not be provided at the contact position between the conductive element 17 and the common electrode layer 22. The protective layer exposes a portion of the conductive layer 221 for contact with the conductive element 17, thereby facilitating a stable electrical connection between the conductive element 17 and the conductive layer 221.

[0077] In the second embodiment, see Figure 21 and Figure 22 The polarizing assembly 2 includes not only a polarizing layer 21 and a common electrode layer 22 disposed on the side of the polarizing layer 21 near the color resist layer 12 of the array substrate 1, but also a touch layer 23 disposed on the side of the polarizing layer 21 away from the common electrode layer 22. Specifically, in this embodiment, the touch layer 23 and the common electrode layer 22 are insulated from each other and are not electrically connected.

[0078] Specifically, in this embodiment, the two opposite surfaces of the polarization layer 21 of the polarization component 2 can be integrated with a common electrode layer 22 and a touch layer 23, respectively. The common electrode layer 22 is used to conduct with the transparent conductive layer 16 of the array substrate 1 to transmit Vcom signals, and the touch layer 23 is used to perform touch sensing to realize touch function.

[0079] It is understandable that by further setting a touch layer 23 on the side of the polarizing layer 21 of the polarizing component 2 that is opposite to the common electrode layer 22, and integrating the touch layer 23 into the polarizing component 2, the structure of the display module 100 can be effectively simplified while realizing the touch function. Since the polarizing component 2 is located on the outermost layer of the display module 100, directly integrating the touch layer 23 on the upper surface of the polarizing layer 21 can realize the On-cell Touch solution, which can eliminate a separate touch glass cover or touch sensing layer, helping to achieve a thinner and lighter design and saving costs. Moreover, by forming a double conductive layer structure on the upper and lower surfaces of the polarizing layer 21, the anti-interference ability of the touch screen can be improved, and a better waterproof effect can be achieved, preventing moisture and other substances from entering the display module 100.

[0080] In some implementations, see Figure 22 The touch layer 23 includes a first electrode layer 231, a substrate layer 232, and a second electrode layer 233 stacked sequentially. The first electrode layer 231 is located on the surface of the substrate layer 232 near the polarizing layer 21, and the substrate layer 232 is located between the first electrode layer 231 and the second electrode layer 233. The substrate layer 232 acts as a supporting framework, separating the first electrode layer 231 and the second electrode layer 233 to form the medium required for capacitive sensing. The first electrode layer 231 directly contacts or is close to the surface of the polarizing layer 21, serving to collect or drive touch signals. The second electrode layer 233 is located on the outermost side of the touch layer 23 and is used for grounding or as another driving or sensing electrode.

[0081] In some embodiments, the first electrode layer 231 may be any one of a transparent conductive oxide layer, a patterned metal mesh structure, or a coated or printed layer of silver nanowires. And / or, in some embodiments, the second electrode layer 233 may be any one of a transparent conductive oxide layer, a patterned metal mesh structure, or a coated or printed layer of silver nanowires.

[0082] Specifically, the first electrode layer 231 and the second electrode layer 233 can be independently selected in terms of materials or structures, both being chosen from any one of the following: a transparent conductive oxide layer, a patterned metal mesh structure, or a silver nanowire layer formed by coating or printing. This means that the two layers can use the same or different material combinations or structures to balance conductivity, transmittance, cost, and flexibility requirements. For example, indium tin oxide can be used as the transparent conductive oxide layer, which has good transparency and mature processing; or a metal mesh structure can be used, formed by printing or etching a metal film to reduce sheet resistance while maintaining high transmittance; or a silver nanowire layer can be formed by printing or coating to have excellent flexibility and conductivity. In one embodiment, both the first electrode layer 231 and the second electrode layer 233 are silver nanowire layers, giving the entire touch layer 23 extremely high flexibility, suitable for flexible devices. In another embodiment, the first electrode layer 231 uses a metal mesh structure, and the second electrode layer 233 uses a silver nanowire layer, balancing structural strength and flexibility. During operation, when a user touches the screen with their finger, capacitive coupling is formed between the finger and the first electrode layer 231 and the second electrode layer 233 of the touch layer 23, causing a change in the local electric field. The touch position can be determined by detecting this change.

[0083] In some embodiments, the patterned metal mesh structure is a mesh of tungsten, molybdenum or rhenium formed by 3D printing, which has lower equipment and material costs and shorter processing time; or, in some embodiments, the patterned metal mesh structure is a metal mesh structure formed by nanoimprinting silver filling process, which has better flexibility, higher transmittance and is more suitable for curved or flexible displays.

[0084] By independently selecting the materials of the first electrode layer 231 and the second electrode layer 233 as any one of a transparent conductive oxide layer, a patterned metal mesh structure, or a nano-silver wire layer formed by printing or coating, the first electrode layer 231 and the second electrode layer 233 can be flexibly configured according to the size, resolution, and flexibility requirements of the display module 100. For example, indium tin oxide can be used in small and medium-sized panels to ensure image quality uniformity, while metal mesh structures or nano-silver wire layers can be used in large-sized or flexible panels to reduce resistance and improve bending resistance, thereby optimizing the electrical performance and mechanical reliability of the display module 100.

[0085] In some embodiments, the display module 100 is a flexible display module. Specifically, the polarizing component 2 is a flexible polarizing component, and the array substrate 1 of the display module 100 can also be a flexible substrate. The display module 100 is used for flexible display, which can better meet the diverse usage needs of users. For example, the conductive layer 221 of the polarizing component 2 can be a metal mesh structure formed by nanoimprinting and filling silver, or a layer of nano-silver wires formed by coating or printing. The above structures have better flexibility and higher transmittance, making them more suitable for flexible displays and facilitating the improvement of the display performance of the flexible display module.

[0086] In other embodiments, the display module 100 may also be a rigid display module.

[0087] See Figure 23 and Figure 24 , Figure 23 This is a schematic diagram of a module of an embodiment of the display device provided in the third embodiment of this application. Figure 24 yes Figure 23 A schematic diagram of one embodiment of the provided display device.

[0088] See Figure 23 and Figure 24 This application also provides a display device 400, which includes a backlight module 200 and a display module 100. The display module 100 can be any of the display modules described in the above embodiments. The backlight module 200 is disposed on one side of the display module 100. Specifically, the backlight module 200 is disposed on the side of the array substrate 1 of the display module 100 facing away from the polarizing component 2. The backlight module 200 provides backlight to the display module 100 so that the display device 400 can display an image.

[0089] In some embodiments, the display device 400 further includes a control circuit 300, which is electrically connected to both the display module 100 and the backlight module 200. In some embodiments, the display module 100 is the display module 100 provided in the first embodiment, that is, the polarizing component 2 of the display module 100 only includes a polarizing layer 21 and a common electrode layer 22, excluding the touch layer 23, and the common electrode layer 22 may include multiple common electrode blocks.

[0090] Specifically, the control circuit 300 is electrically connected to the common electrode layer 22. During the display period, the control circuit 300 applies a DC voltage (Vcom DC) to the common electrode layer 22, thereby enabling the common electrode layer 22 to transmit Vcom signals during the display period. Simultaneously, during the touch detection period, the control circuit 300 also applies an AC voltage (Vcom AC) to the common electrode layer 22, using the common electrode layer 22 as a touch sensing layer, thus enabling touch sensing during the touch detection period. The display period and the touch detection period alternate.

[0091] That is, in this embodiment, the control circuit 300 of the display device 400 can control the common electrode layer 22 to perform time-division multiplexing. The common electrode layer 22 can serve as both a Vcom signal transmission layer and a touch sensing layer. The common electrode layer 22 can realize the two different functions of Vcom signal transmission and touch sensing in time-division, which is conducive to a thinner and lighter design, saves costs, and can improve the performance of the display device 400, broaden the application range of the display device 400, and meet more usage needs.

[0092] In some embodiments, the display device 400 can be a flexible display device. Specifically, the display module 100 is a flexible display module, the polarizing component 2 of the display module 100 is a flexible polarizing component, and the backlight module 200 can also be a flexible structure, which facilitates flexible display and meets more usage requirements. For example, the conductive layer 221 of the polarizing component 2 of the flexible display module can be a metal mesh structure formed by nanoimprinting and filling silver, or a nano-silver wire layer formed by coating or printing. The above structures have better flexibility, higher transmittance, and are more suitable for flexible displays, which helps to improve the display performance of the display device 400.

[0093] In other embodiments, the display device 400 may also be a rigid display device. Specifically, both the display module 100 and the backlight module 200 may be rigid structures.

[0094] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display module, characterized in that, include: An array substrate includes a substrate and a color resist layer disposed on one side of the substrate; the color resist layer includes a plurality of color resists spaced apart from each other. A polarizing assembly is disposed on the side of the color resist layer away from the substrate, including a polarizing layer and a common electrode layer disposed on at least the surface of the polarizing layer near the array substrate; the common electrode layer includes at least a first protective layer and the conductive layer, wherein the first protective layer is disposed on one side of the conductive layer; A liquid crystal layer is disposed between the array substrate and the polarizing component; A frame adhesive is disposed between the array substrate and the polarizing component, and is located around the liquid crystal layer. The frame adhesive connects the array substrate and the polarizing component. The polarizing layer is used to support the common electrode layer; The polarizing component further includes a touch layer disposed on the side of the polarizing layer opposite to the color resist layer; or, the common electrode layer includes a plurality of common electrode blocks, the common electrode layer being electrically connected to the control circuit to transmit a common voltage signal during the display period and to serve as a touch sensing layer during the touch detection period, wherein the display period and the touch detection period alternate.

2. The display module according to claim 1, characterized in that, The common electrode layer includes the first protective layer, the conductive layer, and the second protective layer; The first protective layer is disposed on the side of the conductive layer near the polarizing layer, and the second protective layer is disposed on the side of the conductive layer away from the polarizing layer; wherein, the material of the first protective layer includes silicon dioxide, and the material of the second protective layer includes UV-curable acrylic resin; or, the material of the first protective layer includes UV-curable acrylic resin, and the material of the second protective layer includes silicon dioxide; or, the first protective layer is a stacked layer of niobium pentoxide and silicon dioxide, and the material of the second protective layer includes UV-curable acrylic resin; or, the material of the first protective layer includes UV-curable acrylic resin, and the second protective layer is a stacked layer of niobium pentoxide and silicon dioxide; or, the material of the first protective layer includes silicon dioxide, and the second protective layer is a stacked layer of niobium pentoxide and silicon dioxide; or, the first protective layer is a stacked layer of niobium pentoxide and silicon dioxide, and the material of the second protective layer includes silicon dioxide. Alternatively, the first protective layer is disposed on the side of the conductive layer away from the polarizing layer, and the second protective layer is disposed on the side of the first protective layer away from the conductive layer; wherein the material of the first protective layer includes silicon dioxide, and the material of the second protective layer includes UV-curable acrylic resin; or, the first protective layer is a stacked layer of niobium pentoxide layer and silicon dioxide layer, and the material of the second protective layer includes UV-curable acrylic resin.

3. The display module according to claim 2, characterized in that, The first protective layer is disposed on the side of the conductive layer close to the polarizing layer, and the second protective layer is disposed on the side of the conductive layer away from the polarizing layer; The common electrode layer further includes a polyester film layer and a first pressure-sensitive adhesive layer stacked together; the polyester film layer is disposed on the side of the first protective layer away from the conductive layer, and the first pressure-sensitive adhesive layer is disposed on the side of the polyester film layer close to the polarizing layer, and the first pressure-sensitive adhesive layer is used to adhere the common electrode layer to the polarizing layer.

4. The display module according to claim 1, characterized in that, The common electrode layer includes a first protective layer, a conductive layer, a second protective layer, and a third protective layer stacked sequentially. The first protective layer is disposed on the side of the conductive layer close to the polarizing layer. The material of the first protective layer includes silicon dioxide, the second protective layer is a stacked layer of niobium pentoxide and silicon dioxide, and the material of the third protective layer includes UV-curable acrylic resin. Alternatively, the common electrode layer includes a first protective layer, a second protective layer, the conductive layer, and a third protective layer stacked sequentially, with the first protective layer disposed on the side of the second protective layer near the polarizing layer; wherein, the first protective layer is a stacked layer of niobium pentoxide and silicon dioxide, the material of the second protective layer includes UV-curable acrylic resin, and the material of the third protective layer includes silicon dioxide; Alternatively, the common electrode layer may include the conductive layer, the first protective layer, the second protective layer, and the third protective layer stacked sequentially, wherein the first protective layer is disposed on the side of the conductive layer away from the polarizing layer; wherein the material of the first protective layer includes silicon dioxide, the second protective layer is a stacked layer of niobium pentoxide and silicon dioxide, and the material of the third protective layer includes UV-curable acrylic resin.

5. The display module according to claim 1, characterized in that, The common electrode layer includes the first protective layer and the conductive layer; The first protective layer is disposed on the side of the conductive layer near the polarizing layer; wherein, the material of the first protective layer includes UV-curable acrylic resin, or, the material of the first protective layer includes silicon dioxide; Alternatively, the first protective layer is disposed on the side of the conductive layer away from the polarizing layer; wherein the material of the first protective layer includes UV-curable acrylic resin, or the material of the first protective layer includes silicon dioxide.

6. The display module according to claim 1, characterized in that, The polarizing component includes the touch layer disposed on the side of the polarizing layer opposite to the array substrate; The touch layer includes a first electrode layer, a substrate layer, and a second electrode layer stacked sequentially, wherein the first electrode layer is located on the surface of the substrate layer near the polarizing layer. Wherein, the first electrode layer is any one of a patterned metal mesh structure, a coated or printed layer of silver nanowires; and / or, the second electrode layer is any one of a patterned metal mesh structure, a coated or printed layer of silver nanowires. The patterned metal mesh structure is a mesh-like structure of tungsten, molybdenum, or rhenium formed by 3D printing, or the patterned metal mesh structure is a metal mesh structure formed by nanoimprinting silver filling process.

7. The display module according to any one of claims 1-6, characterized in that, The array substrate further includes a black matrix layer disposed on one side of the substrate, the black matrix layer comprising a plurality of black matrices, the black matrices being located between adjacent color resists; wherein, the width of the black matrix is ​​8-13 μm; The conductive layer is a patterned metal mesh structure, which is a mesh-shaped metal tungsten, molybdenum or rhenium formed by 3D printing process, or the patterned metal mesh structure is a metal mesh structure formed by nanoimprinting silver filling process. Alternatively, the conductive layer may be a layer of silver nanowires formed by coating or printing; And / or, the display module is a flexible display module, and the polarizing component is a flexible polarizing component.

8. The display module according to claim 7, characterized in that, The common electrode layer is used to be electrically connected to the control circuit to transmit a common voltage signal during the display period and to serve as a touch sensing layer during the touch detection period. The polarizing layer has a portion of the common electrode layer on both the surface near the array substrate and the surface away from the array substrate. The portion of the common electrode layer on the surface of the polarizing layer near the array substrate is electrically connected to the portion of the common electrode layer on the surface of the polarizing layer away from the array substrate.

9. A display device, characterized in that, include: The display module as described in any one of claims 1-8; A backlight module is disposed on one side of the display module and is used to provide backlight for the display module.

10. The display device according to claim 9, characterized in that, The common electrode layer includes a plurality of the common electrode blocks; The display device further includes a control circuit, which is electrically connected to the common electrode layer; the control circuit is used for: During the display period, a DC voltage is applied to the common electrode layer; during the touch detection period, an AC voltage is applied to the common electrode layer to use the common electrode layer as a touch sensing layer; wherein the display period and the touch detection period alternate.

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