Display module and display screen

Abstract

The invention provides a display module and a display screen, and relates to the field of display. The display module comprises an upper polaroid, a color film panel, a display circuit panel and a lower polaroid which are arranged in a stacked mode. On the side, connected with the electric connecting piece, of the display circuit panel, the edge of the color film panel is inwards shrunk to the edge of the display circuit panel, and the edge of the upper polaroid is inwards shrunk to the edge of the color film panel; a first filler is contained between the edge of the color film panel and the edge of the display circuit panel, a second filler is contained between the edge of the upper polaroid and the edge of the first filler, and the color of the second filler is the same as that of the display module under the condition that the display module is not lightened. According to the technical scheme, the display screen without frames on the four sides can be achieved, the display performance of the display screen is improved, and the appearance is optimized.

Description

Technical Field

[0001] The present application relates to the field of display technology, and more specifically, to a display module and a display screen. Background Art

[0002] With the continuous advancement of display technology and consumers' pursuit of visual experience, the four-sided borderless design of liquid crystal display (LCD) has become a hot trend in the industry. LCD with four-sided borderless design eliminates the constraints of traditional borders, which can make the screen display area larger and the field of view wider, and can greatly improve the user's visual experience and the aesthetics of the device. At present, LCD with four-sided borderless design is basically a structure with thin film transistor (TFT) glass panel facing up. This structure will have many reliability issues, such as yellowing, metal layer reflection, etc., which affect the display performance of four-sided borderless LCD.

[0003] In view of this, how to improve the display performance of four-sided borderless LCD and optimize the appearance is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a display module and a display screen, which are conducive to realizing a four-sided borderless display screen, improving the display performance of the display screen and optimizing the appearance.

[0005] In a first aspect, a display module is provided, comprising: an upper polarizer, a color filter panel, a display circuit panel and a lower polarizer which are stacked; on a side where the display circuit panel is connected to an electrical connector, an edge of the color filter panel is retracted inside the edge of the display circuit panel, and an edge of the upper polarizer is retracted inside the edge of the color filter panel; a first filler is accommodated between the edge of the color filter panel and the edge of the display circuit panel, and a second filler is accommodated between the edge of the upper polarizer and the edge of the first filler, wherein the color of the second filler is the same as the color of the display module when it is not lit.

[0006] In the embodiment of the present application, the first filler and the second filler can well cover the edge of one side where the display module is connected to the electrical connector, so no additional frame is needed for shielding, which is conducive to the design of the display module and the display screen without frames on all four sides, and improves the appearance of the display module and the display screen and the user experience. In addition, the color of the second filler can be the same as the color of the display module when it is not lit, so that the overall color of the display module can be uniform when it is not lit, thereby further improving the appearance of the display module and the display screen. Furthermore, in the display module provided in the embodiment of the present application, the color film panel is located at the top, that is, the color film panel is set toward the user, which can avoid various reliability problems caused by the display circuit panel being set upward, thereby improving the display effect of the display module and the display screen.

[0007] In some possible implementations, part of the second filler is disposed on the surface of the color filter panel and covers the electrical connection points on the surface of the color filter panel.

[0008] Through the technical solution of this embodiment, the second filler can cover the electrical connection points on the surface of the color film panel, thereby preventing the electrical connection points from leaking out and affecting the overall appearance of the display module, so as to further improve the appearance of the display module and the display screen.

[0009] In some possible implementations, the first filler includes a first adhesive layer, and the second filler includes a second adhesive layer.

[0010] In this embodiment, two adhesive layers are used to fill the edge of the display module, which not only has a better appearance effect, but also is easy to implement in process and has a low production cost.

[0011] In some possible implementations, the first adhesive layer and the second adhesive layer are made of different materials.

[0012] In this embodiment, different materials can be used according to the main functions of the first adhesive layer and the second adhesive layer. For example, the material of the second adhesive layer can be used to improve the appearance of the display module, and the material of the first adhesive layer can be a low-cost material, thereby comprehensively considering the manufacturing cost and appearance of the display module.

[0013] In some possible implementations, the first adhesive layer and / or the second adhesive layer includes at least one of the following materials: a cross-linking agent, a color paste, a thickener, and a matting agent.

[0014] By adding the at least one material mentioned above into the first adhesive layer and / or the second adhesive layer, the appearance of the adhesive layer can be effectively improved, thereby improving the overall appearance of the display module.

[0015] In some possible implementations, a convex surface is formed on a side of the first adhesive layer away from the upper polarizer, and / or a convex surface is formed on a side of the second adhesive layer away from the color filter panel.

[0016] Through the technical solution of this embodiment, the raised surface in the first adhesive layer and / or the second adhesive layer can provide more bending space for the electrical connectors in the display module, and can also provide a buffer space for the display circuit panel and the color film panel, thereby reducing the probability of other structural parts in the display screen squeezing the display circuit panel and the color film panel to cause problems such as light leakage.

[0017] In some possible implementations, compared to the plane where the upper surface of the upper polarizer is located, the flatness of the second adhesive layer ranges from -50 μm to 50 μm. The second adhesive layer with better flatness is beneficial to further improve the overall appearance of the display module.

[0018] In some possible implementations, the first filler includes a magnetic member, and the second filler includes a metal member.

[0019] In this embodiment, the edge of the display module is filled by using magnetic parts and metal parts, which not only improves the flatness, but also solves the appearance problem and facilitates the removal of the metal parts, thereby facilitating the installation and maintenance of the display module.

[0020] In some possible implementations, a plurality of electrical connectors are connected to one side of the display circuit panel, and the first filler includes a plurality of magnetic members, which are distributed between the plurality of electrical connectors and / or at both ends of the plurality of electrical connectors.

[0021] Through the technical solution of this embodiment, the multiple magnetic parts can be distributed more evenly on one side edge of the display circuit panel, thereby improving the magnetic attraction and fixing effect with the metal parts, thereby improving the reliability of the display module.

[0022] In some possible implementations, the first filler further includes an adhesive layer, and the adhesive layer covers the magnetic member.

[0023] In some possible implementations, the height of the magnetic member is less than or equal to the thickness of the color film panel, and / or the width of the magnetic member is less than or equal to the distance from the edge of the color film panel to the edge of the display circuit panel.

[0024] In some possible implementations, the first filler includes a glue layer, and the second filler includes a polyester board, and the polyester board has the same color as the display module when it is not lit.

[0025] Through the technical solution of this implementation, the edge of the display module is filled using a polyester board (PET board) and an adhesive layer. PET has a certain elasticity and has a rebound effect when the user presses the depression, which is beneficial to further improve the appearance of the display module.

[0026] In some possible implementations, the first filler includes a glue layer, and the second filler includes a polyester board and a light-shielding tape, wherein the color of the light-shielding tape is the same as the color of the display module when it is not lit.

[0027] In this embodiment, the color adjustment of the light-shielding tape is easier to implement than the color adjustment of the polyester board, and is conducive to reducing the manufacturing cost. In addition, the light-shielding tape can further improve the stability of the polyester board in the display module.

[0028] In some possible embodiments, the display module also includes: a circuit board and a circuit board protection component, the circuit board protection component is arranged on the side where the display circuit panel is connected to the electrical connector; a bending portion is formed at one end of the circuit board protection component close to the upper polarizer, the first sub-portion of the bending portion is parallel to the upper polarizer, the second sub-portion of the bending portion is perpendicular to the first sub-portion, and there is a gap between the second sub-portion and the display circuit panel.

[0029] In the technical solution provided in this embodiment, the circuit board protection member is provided with a bending portion, which can reduce the possibility of the circuit board protection member directly abutting against the panels in the display module (such as the display circuit panel), thereby reducing the occurrence of problems such as light leakage.

[0030] In some possible implementations, in a direction parallel to the upper polarizer, a length of the first sub-portion is less than or equal to a distance between an edge of the upper polarizer and an edge of the display circuit panel.

[0031] In some possible implementations, in a direction parallel to the upper polarizer, a length of the first sub-portion is between 2 mm and 3 mm.

[0032] In the two embodiments, the effect of the first sub-portion on the overall appearance of the display module can be reduced by designing the size of the first sub-portion, thereby further improving the appearance of the display module.

[0033] In some possible implementations, the second filler includes a metal piece or a polyester board, the surface of the first sub-section is flush with the surface of the color film panel, and the metal piece or the polyester board is extended on the surface of the first sub-section.

[0034] In this embodiment, the circuit board protection component does not need to consider the appearance color. By extending the metal part or polyester board to the surface of the circuit board protection component, the appearance color of the display module can be unified, which is beneficial to further reduce the manufacturing cost of the circuit board protection component and the display module.

[0035] In a second aspect, a display screen is provided, comprising: a backlight, and a display module in the first aspect or any possible implementation manner of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of a liquid crystal display screen provided in an embodiment of the present application.

[0037] Figure 2 It is a schematic diagram of a three-sided borderless display screen with CF glass facing upwards provided in an embodiment of the present application.

[0038] Figure 3 It is a schematic plan view of a display module provided in an embodiment of the present application.

[0039] Figure 4 yes Figure 3 Schematic cross-sectional view of a local area along the AA' direction.

[0040] Figure 5 is a schematic diagram of another display module provided in an embodiment of the present application.

[0041] Figure 6 It is a schematic plan view of a display module provided in an embodiment of the present application.

[0042] Figure 7 yes Figure 6 Schematic cross-sectional view of a local area along the BB' direction.

[0043] Figure 8 This is a process flow provided in an embodiment of the present application when the glue viscosity is less than 1000 CPS.

[0044] Fig. 9 is a schematic diagram of another display module provided in an embodiment of the present application.

[0045] Fig.10 is a schematic diagram of another display module provided in an embodiment of the present application.

[0046] Fig.11 is a schematic diagram of another display module provided in an embodiment of the present application.

[0047] Fig.12 is a schematic diagram of another display module provided in an embodiment of the present application.

[0048] Fig.13 is a schematic diagram of another display module provided in an embodiment of the present application.

[0049] Fig.14 is a schematic diagram of another display module provided in an embodiment of the present application.

[0050] Fig.15 is a schematic diagram of another display module provided in an embodiment of the present application.

[0051] Fig.16 It is a schematic diagram of a display screen provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0053] The present application relates to a display screen. The display screen can be applied to a variety of fields and scenarios. As an example, the display screen can be applied to 3C electronic products of computers, communications and consumer electronics, including but not limited to televisions, mobile phones, computers, laptops, tablet computers, personal digital assistants (PDAs), car computers, wearable devices, gaming devices, photographing devices, etc. The present application does not limit the specific type of electronic device where the display screen is located.

[0054] In addition, the display screen involved in the present application may be a liquid crystal display (LCD). The liquid crystal display may be, for example, a thin film transistor (TFT) liquid crystal display, that is, a driving circuit in a liquid crystal display panel is formed by using TFT. Among them, the types of TFT may include, for example, amorphous silicon (a-Si) TFT, low temperature polycrystalline silicon (Low Temperature Poly-silicon, LTPS) TFT, low temperature polycrystalline oxide (Low Temperature Polycrystalline Oxide, LTPO) TFT, and indium gallium zinc oxide-metal oxide (Indium Gallium Zinc Oxide, IGZO) TFT, etc. In addition, according to the driving type classification, the liquid crystal display may include twisted nematic (Twisted Nematic, TN), in-plane switching (In-Plane Switching, IPS), vertical alignment (Vertical Alignment, VA), etc. The present application does not limit the specific type of the liquid crystal display.

[0055] Figure 1 A schematic diagram of a liquid crystal display screen provided in an embodiment of the present application is shown.

[0056] like Figure 1As shown, the liquid crystal display screen 100 may include a first polarizer (POL) 110, a color filter (CF) glass 120, a TFT glass 140, a second polarizer 150 and a backlight 160 that are stacked, wherein a liquid crystal (LC) layer 130 is sandwiched between the CF glass 120 and the TFT glass 140.

[0057] The CF glass 120 may also be referred to as a color filter glass or a color filter panel. The CF glass 120 may include a glass substrate and a color filter 121 formed on the glass substrate. The color filter 121 forms a light-transmitting area for controlling the light color of the display screen. Optionally, the color filter 121 includes filters of three colors: red, green, and blue. In some examples, such as Figure 1 As shown, a color filter array formed by a plurality of color filters 121 may be distributed on the CF glass 120, and each color filter 121 may correspond to a pixel in a display screen. In addition, the non-light-transmitting areas between the plurality of color filters 121 may form a black matrix (BM) for isolating light interference between filters of different colors, improving the color purity and contrast of the display screen, and effectively improving problems such as pixel light leakage.

[0058] The TFT glass 140 may also be referred to as display circuit glass or display circuit panel. The TFT glass 140 may include a glass substrate and a TFT pixel circuit 141 formed on the glass substrate. Alternatively, in some alternative embodiments, the pixel circuit on the glass substrate may also be a pixel circuit of other types other than TFT. Figure 1 As shown, a pixel circuit array formed by a plurality of TFT pixel circuits 141 may be distributed on the TFT glass 140, and the area where a TFT pixel circuit is located may also be referred to as a pixel. The TFT in the TFT pixel circuit may be used to receive external control signals (such as gate drive signals and source drive signals, etc.), thereby controlling the voltage of the pixel electrode connected to the TFT and changing the electric field corresponding to the area where the pixel electrode is located. Under the action of different electric fields, the state of the liquid crystal also changes correspondingly to the light emission, thereby controlling the light emission effect of the pixel.

[0059] In some embodiments, the edges of the TFT glass 140 and the CF glass 120 can be sealed by a material such as a sealant, so that the liquid crystal layer 130 can be reliably sealed in the space formed by the two layers of glass. The whole formed by the TFT glass 140, the liquid crystal layer 130 and the CF glass 120 can be called a liquid crystal box.

[0060] The first polarizer 110 and the second polarizer 150 can be located at the upper and lower sides of the liquid crystal box respectively, so that the light passing through has a specific polarization direction, thereby controlling the optical effect of the liquid crystal layer. In some embodiments, the polarization directions of the first polarizer 110 and the second polarizer 150 can be perpendicular to each other.

[0061] The backlight 160 may be located at the back of the display screen 100, so as to provide a uniform illumination light source for the display screen 100. The backlight 160 may also be referred to as a backlight module, which may include a plurality of optical stacked structures, such as optical films such as a light guide plate and a diffuser. The light source in the backlight 160 may include, for example, a light emitting diode (LED), a micro LED (MLED), and the like.

[0062] Figure 1 The main components of the liquid crystal display screen 100 are only schematically shown. In addition to the components shown in the figure, the liquid crystal display screen can also add other components according to application requirements. For example, the side of the TFT glass 140 and the CF glass 120 facing the liquid crystal layer 130 can be coated with an alignment film. In addition, Figure 1 The order of the parts shown in can also be adjusted according to application requirements. For example, Figure 1 The positions of the TFT glass 140 and the CF glass 120 are interchanged. The specific structure of the liquid crystal display screen 100 is not limited in the embodiment of the present application.

[0063] In the display field, in order to improve the appearance and user experience of the display screen, the four-sided borderless design of the display screen has gradually developed, which means that the four borders on the display screen are extremely narrow or almost invisible. This design makes the display screen almost only have the display area visually, without obvious border restrictions, thus providing users with a wider field of view and a more immersive viewing experience.

[0064] In some current related designs, due to process conditions and cost requirements, the display screen with a four-sided borderless design generally has TFT glass on the top, that is, the TFT glass is located on the side of the CF glass facing the user. Under this solution, many reliability issues will arise, such as yellowing of the display screen, reflection of the metal layer, etc. The CF glass facing up solution can generally only achieve a three-sided borderless design. The other side needs to be connected to the external electrical connector, and the frame needs to be used to cover the related structure, which affects the appearance display effect.

[0065] Figure 2 A schematic diagram of a three-sided borderless display screen with CF glass facing upward provided in an embodiment of the present application is shown.

[0066] like Figure 2As shown, in the display screen 200, the upper polarizer 210, the CF glass 220, the TFT glass 230 and the lower polarizer 240 are stacked in sequence to form a panel module. As an example, Figure 2 The backlight in the display screen 200 shown in the figure may include: an LED light board 251, an optical film layer 252, a light guide plate 253, a reflective sheet 254 and a back plate 255, wherein the optical film layer 252 may include a multi-layer film layer, such as a diffuser, a brightness enhancement prism, etc. The backlight and the panel module may be connected to each other via a connector, wherein the connector may include, for example, a foam tape 261, a rubber frame 262 and a silicone pad 263 as shown in the figure.

[0067] One side of the TFT glass 230 may be connected to an electrical connector, such as a Chip On Film (COF) 272 shown in the figure, and the TFT glass 230 may be connected to a circuit board 280 through the COF 272. The circuit board 280 may include, for example, a printed circuit board (PCB). In addition, a chip 271 may be bound to the COF 272, and the chip 271 may provide control signals related to the display screen.

[0068] In order to protect the circuit board 280, the display screen 200 may further include a circuit board protection member 290, which may be referred to as a PCB Cover. In addition to protecting the circuit board 280, the circuit board protection member 290 may be used to reduce or prevent electromagnetic interference (EMI) between the circuit board 280 and other electrical components. In addition, the circuit board protection member 290 may cover the side of the display screen connected to the COF 272 to protect the COF 272 and related electronic components in the related electrical connectors.

[0069] exist Figure 2 In the example shown, a gap 201 is left between the CF glass 220 and the circuit board protection member 290, and the gap 201 needs to be blocked by the relevant structural members (such as the middle frame, etc.) of the electronic device where the display screen is located, forming a frame on this side of the display screen 200. Therefore, the display screen 200 provided in the embodiment of the present application can only be designed without a frame on three sides, which affects the appearance of the display screen 200 and also affects the user experience.

[0070] In view of this, the following embodiments provide a display module that can not only improve the display performance of a four-sided borderless LCD, but also optimize the appearance, which is conducive to realizing a four-sided borderless design of a display screen.

[0071] Figure 3 and Figure 4A schematic diagram of a display module provided by an embodiment of the present application is shown. Figure 3 A schematic plan view showing a module. Figure 4 for Figure 3 Schematic cross-sectional view of a local area along the AA' direction.

[0072] like Figure 3 and Figure 4 As shown, the display module 300 includes: an upper polarizer 310, a color filter panel 320, a display circuit panel 330, and a lower polarizer 340 which are stacked. In particular, on the side where the display circuit panel 330 is connected to the electrical connector 350, the edge of the color filter panel 320 is retracted to the edge of the display circuit panel 330, and the edge of the upper polarizer 310 is retracted to the edge of the color filter panel 320. A first filler 360 is contained between the edge of the color filter panel 320 and the edge of the display circuit panel 330, and a second filler 370 is contained between the edge of the upper polarizer 310 and the edge of the first filler 360, wherein the color of the second filler 370 is the same as the color of the display module 300 when it is not lit.

[0073] In the embodiment of the present application, the upper polarizer 310 is the polarizer facing the user side in the display module 300, and the lower polarizer 340 is the polarizer facing the inside of the electronic device in the display module 300. In order to distinguish the positions of the two polarizers in the display module 300, the two polarizers are referred to as the upper polarizer and the lower polarizer in the present application. Optionally, the two polarizers can be Figure 1 The first polarizer 110 and the second polarizer 150 in the illustrated embodiment. Optionally, the polarization directions of the two polarizers may be perpendicular to each other.

[0074] The color filter panel 320 in the display module 300 is arranged close to the upper polarizer 310, that is, the display module 300 is a module with the color filter panel 320 facing upward. The relevant structure of the color filter panel 320 can be seen above. Figure 1 Relevant description of the CF glass 120 in the illustrated embodiment. In the display module 300, the color filter panel 320 is arranged upward, which can avoid many reliability problems caused by the TFT glass facing upward, and can improve the display effect of the display module 300.

[0075] In addition, the display circuit panel 330 in the display module 300 is disposed below the color filter panel 320, and the display circuit panel 330 is disposed close to the lower polarizer 340. The relevant structure of the display circuit panel 330 can be seen in the above Figure 1 The relevant description of TFT glass in the embodiment shown. Figure 3 and Figure 4As shown, one side edge of the display circuit panel 330 may be connected to the electrical connection member 350 , and the electrical connection member 350 may include, for example, a flexible printed circuit (FPC), a COF or other types of electrical connection devices.

[0076] exist Figure 3 and Figure 4 In the illustrated embodiment, on the side where the display circuit panel 330 is connected to the electrical connector 350, the edge of the color filter panel 320 is retracted to the edge of the display circuit panel 330, and the edge of the upper polarizer 310 is retracted to the edge of the color filter panel 320. The display circuit panel 330 forms a first step surface on the upper surface of the edge and the side of the color filter panel 320, and the display circuit panel 330 is provided with a first filler 360 on the upper surface of the edge. Optionally, the height of the first filler 360 can be close to the thickness of the color filter panel 320. For example, the height of the first filler 360 can be equal to the thickness of the color filter panel 320, or slightly lower than the thickness of the color filter panel 320, or slightly higher than the thickness of the color filter panel 320. The color filter panel 320 may form a second step surface on the upper surface of the edge, the upper surface of the first filler 360, and the side of the upper polarizer 310. The color filter panel 320 may be provided with a second filler 370 on the upper surface of the edge and the upper surface of the first filler 360. Optionally, the height of the second filler 370 may be close to the thickness of the upper polarizer 310. For example, the height of the second filler 370 may be equal to the thickness of the upper polarizer 310, or slightly lower than the thickness of the upper polarizer 310, or slightly higher than the thickness of the upper polarizer 310.

[0077] In the embodiment of the present application, the first filler 360 and the second filler 370 can well cover the edge of one side where the display module 300 is connected to the electrical connector 350, so no additional frame is needed for shielding, which is conducive to the design of the display module and the display screen without a frame on all four sides, and improves the appearance of the display module and the display screen and the user experience. In addition, the color of the second filler 370 can be the same as the color of the display module 300 when it is not lit, so that the overall color of the display module 300 is uniform when it is not lit, thereby further improving the appearance of the display module and the display screen. Furthermore, in the display module provided in the embodiment of the present application, the color film panel 320 is located at the top, that is, the color film panel 320 is set toward the user, which can avoid various reliability problems caused by the display circuit panel 330 being set upward, thereby improving the display effect of the display module and the display screen.

[0078] Optionally, in some embodiments, Figure 3 and Figure 4As shown, the surface of the color filter panel 320 may be provided with an electrical connection point 321, which can be used to connect an external signal line to transmit a common voltage signal to the color filter panel 320 and provide it to a common electrode provided in the color filter panel. Optionally, the electrical connection point 321 can be used to connect to the ground. In some embodiments, the electrical connection point 321 includes but is not limited to a silver paste point.

[0079] Part of the second filler 370 can be set on the surface of the color film panel 320 and cover the electrical connection point 321 on the surface of the color film panel 320, so as to prevent the electrical connection point 321 from leaking out and affecting the overall appearance of the display module 300, so as to further improve the appearance of the display module 300 and the display screen.

[0080] For the first filler 360 and the second filler 370 mentioned above, the present application provides a variety of implementations, which are described below in conjunction with specific embodiments.

[0081] [Example 1]

[0082] In the embodiment of the present application, both the first filler and the second filler may be adhesive layers. For the sake of distinction, the two adhesive layers may be referred to as the first adhesive layer and the second adhesive layer hereinafter.

[0083] Figure 5 A schematic diagram of another display module provided in an embodiment of the present application is shown.

[0084] like Figure 5 As shown, the display module 500 includes: an upper polarizer 510, a color filter panel 520, a display circuit panel 530, and a lower polarizer 540 that are stacked. Among them, on the side where the display circuit panel 530 is connected to the electrical connector 550, the edge of the color filter panel 520 is retracted to the edge of the display circuit panel 530, and a first adhesive layer 560 is accommodated between the edge of the color filter panel 520 and the edge of the display circuit panel 530. The edge of the upper polarizer 510 is retracted to the edge of the color filter panel 520, and a second adhesive layer 570 is accommodated between the edge of the upper polarizer 510 and the edge of the first adhesive layer 560. The color of the second adhesive layer 570 can be the same as the color of the display module 500 when it is not lit.

[0085] Optionally, an electrical connection point 521 is provided on the color filter panel 520 , and the second adhesive layer 570 may cover the electrical connection point 521 .

[0086] Optionally, the materials of the first adhesive layer 560 and the second adhesive layer 570 may be the same or different.

[0087] In some examples, the first adhesive layer 560 and the second adhesive layer 570 may both be ultraviolet (UV) curing adhesive, referred to as UV adhesive.

[0088] In other examples, at least one of the first adhesive layer 560 and the second adhesive layer 570 may be added with additional additives based on the base adhesive (e.g., UV adhesive). For example, the first adhesive layer 560 and / or the second adhesive layer 570 may be added with at least one of the following materials based on the base adhesive: a cross-linking agent, a color paste, a thickener, and a matting powder.

[0089] Among them, the cross-linking agent is also called "cross-linking agent", "curing agent", "hardening agent", etc. The cross-linking agent may include organic peroxides, such as diisopropylbenzene peroxide (DCP), benzoyl peroxide (BPO), di-tert-butyl peroxide (DTBP), diisopropylbenzene hydroperoxide (DBHP), etc. Adding the cross-linking agent to the glue layer can enhance the waterproof and vapor-proof effect of the glue layer, thereby providing a better protection effect for the electrical connector 550 connected to the display module.

[0090] The color paste can be used to adjust the color of the glue layer. Optionally, the color paste can be added only to the second glue layer 570 and not to the first glue layer 560, thereby reducing the manufacturing cost of the glue layer and the display module. By adding the color paste, the color of the glue layer can be adjusted to be consistent with the color of the unlit display module, thereby improving the overall appearance of the display module.

[0091] Thickener is a substance that can increase the viscosity of a liquid. By adding thickener to the adhesive layer, the viscosity of the adhesive layer can be increased, thereby improving the stability of the adhesive layer in the display module after curing, reducing the possibility of the adhesive layer falling off after curing, and improving the reliability of the display module.

[0092] The matting agent is a substance that can achieve a matting effect. The matting agent can be a matting powder. Optionally, the matting agent can be added only to the second adhesive layer 570 and not to the first adhesive layer 560, thereby reducing the manufacturing cost of the adhesive layer and the display module in which it is located. After adding the matting agent to the adhesive layer, the haze of the adhesive layer surface can be adjusted so that the haze of the adhesive layer surface is consistent with the surface haze of the upper polarizer 510, further improving the overall appearance of the display module.

[0093] The embodiments of the present application do not limit the specific materials of the above-mentioned cross-linking agent, color paste, thickener and matting powder.

[0094] Optionally, the second adhesive layer 570 may have a better flatness. For example, compared to the upper surface of the upper polarizer 510, the flatness of the second adhesive layer 570 ranges from -50 μm to 50 μm. The flatness of the second adhesive layer 570 may be the deviation between the measured surface height of the second adhesive layer 570 and the ideal plane (the plane where the upper surface of the upper polarizer 510 is located). The second adhesive layer 570 with better flatness is conducive to further improving the overall appearance of the display module.

[0095] In some embodiments, Figure 5 As shown, a convex surface is formed on the side of the first glue layer 560 away from the upper polarizer 510, and / or a convex surface can be formed on the side of the second glue layer 570 away from the secondary color filter panel 520. During the process of applying and curing the glue to form the glue layer, a convex surface can be formed on the side of the glue layer due to the tension of the glue, and the convex surface can provide more bending space for the electrical connector 550, and can also provide a buffer space for the display circuit panel 530 and the color filter panel 520, thereby reducing the probability of other structural parts in the display screen squeezing the display circuit panel 530 and the color filter panel 520 to cause light leakage and other problems.

[0096] Optionally, during the manufacturing process, the first adhesive layer 560 and the second adhesive layer 570 may be coated separately. Figure 6 and Figure 7 Another schematic diagram of a display module provided by an embodiment of the present application is shown. Figure 6 A schematic plan view showing a module. Figure 7 for Figure 6 A schematic cross-sectional view of a local area along the BB' direction. Figure 6 and Figure 7 A schematic diagram of the relevant dimensions of the upper polarizer 510, the color film panel 520, the display circuit panel 530 and the lower polarizer 540 in the display module 500 provided in the embodiment of the present application is also shown.

[0097] like Figure 6 and Figure 7 As shown, the side length of the display circuit panel 530 connected to the electrical connector (not shown) may be L. On the side of the display circuit panel 530 connected to the electrical connector, the distance between the edge of the color filter panel 520 and the edge of the display circuit panel 530 may be W1, and the distance between the edge of the upper polarizer 510 and the edge of the display circuit panel 530 may be W2. The thickness (or height) of the upper polarizer 510 is H1, and the thickness (or height) of the color filter panel 520 may be H2.

[0098] For display modules with the above dimensions, the glue coating process needs to be carried out according to the following logic.

[0099] 1. Use the first layer of glue to fill the step between the color filter panel 520 and the display circuit panel 530. According to the shrinkage rate of the glue, calculate the required coating height before the glue solidifies. The calculation formula is: H3 = H2 / (1-A%), where H3 is the coating height of the first layer of glue and A% is the curing shrinkage rate of the first layer of glue. Although H3 is slightly larger than H2, the glue surface has a certain tension, so it will not flow onto the polarizer 510 when it is slightly higher.

[0100] 2. Curing the first layer of glue, which forms the first glue layer 560 after curing.

[0101] 3. Use the second layer of glue to fill the step between the upper polarizer 510 and the color film panel 520. According to the shrinkage rate of the glue, calculate the required coating height before the glue cures. The calculation formula is: H4=H1 / (1-B%), where H4 is the coating height of the second layer of glue, and B% is the curing shrinkage rate of the second layer of glue.

[0102] 4. Curing the second layer of glue. After curing, the second layer of glue forms the second glue layer 570 .

[0103] Optionally, the thickness of the first adhesive layer 560 formed by curing may be close to or equal to the thickness H2 of the color filter panel 520 . The thickness of the second adhesive layer 570 formed by curing may be close to or equal to the thickness H1 of the upper polarizer 510 .

[0104] In the process of glue coating, in addition to considering the curing shrinkage of the glue, the viscosity of the glue can also be further considered. The smaller the viscosity of the glue, the better the fluidity, and the closer the viscosity is to the paste. When the viscosity of the glue is less than 1000CPS, piezoelectric valve spraying can be used, and a dam process is added to the edge to prevent the glue from flowing and collapsing at the edge. When the viscosity of the glue is between 1000CPS and 20000CPS, piezoelectric valve spraying, pneumatic needle valve scraping and screw needle valve scraping can all be used. When the viscosity of the glue is greater than 20000CPS, pneumatic needle valve or screw needle valve scraping can be used.

[0105] Figure 8 The process flow of a glue with a viscosity less than 1000 CPS provided in an embodiment of the present application is shown.

[0106] like Figure 8 As shown in (a), a dam is set at the edge of the display circuit panel 530 using high viscosity glue (for example, viscosity greater than 20000 CPS). The dam can also be understood as a blocking member for blocking low viscosity glue subsequently set at the edge of the display circuit panel 530 to limit the flow area of ​​the low viscosity glue.

[0107] like Figure 8As shown in (b), a first layer of glue is applied between the dam and the color film panel 520. The first layer of glue is a low-viscosity glue with a viscosity of less than 1000 CPS. The coating height of the first layer of glue can be obtained by referring to the calculation formula in the above embodiment. According to the viscosity of the glue, a process such as piezoelectric valve spraying can be selected.

[0108] like Figure 8 As shown in (c) in FIG. 5 , after the first layer of glue is cured, a first glue layer is formed on the surface of the edge of the display circuit panel 530 .

[0109] like Figure 8 As shown in (d), a dam is set at the edge of the color film panel 520 using high-viscosity glue, and the dam is used to enclose low-viscosity glue subsequently set at the edge of the color film panel 520 to limit the flow area of ​​the low-viscosity glue.

[0110] like Figure 8 As shown in (e), a second layer of glue is applied between the dam and the upper polarizer 510. The second layer of glue is a low-viscosity glue with a viscosity of less than 1000 CPS. The coating height of the second layer of glue can be obtained by referring to the calculation formula in the above embodiment. According to the viscosity of the glue, a process such as piezoelectric valve spraying can be selected.

[0111] like Figure 8 As shown in (f) in FIG. 5 , after the second layer of glue is cured, a second glue layer is formed on the surface of the edge of the color filter panel 520 .

[0112] Optionally, in the above Figure 8 In the example shown, the first layer of glue and the second layer of glue are both low-viscosity glue. Optionally, the first layer of glue and the second layer of glue can also be non-low-viscosity glue (e.g., glue with a viscosity greater than 1000 CPS), or the first layer of glue and the second layer of glue are non-viscosity glue and low-viscosity glue, respectively.

[0113] When the first layer of glue and / or the second layer of glue uses glue with a viscosity greater than 1000 CPS, the above Figure 8 Steps (a) and / or (d) in the illustrated embodiment may be omitted. In other words, when the viscosity of the glue is relatively high, it is not necessary to use the dam process to set a dam at the edge of the panel. However, when the viscosity of the glue is relatively high, in order to improve the flatness of the glue layer after curing, a needle valve semi-contact dispensing method may be used to apply and scrape the glue while making the surface flat.

[0114] When the viscosity of the glue is low, the colloid form is similar to water and can flow naturally. Therefore, using glue with low viscosity for coating is conducive to improving the flatness of the surface of the glue layer. In some embodiments, the second glue layer 570 can be formed with glue with low viscosity to improve the surface flatness and enhance the appearance of the display module. In addition, the first glue layer 560 can be formed with glue with high viscosity. The coating of the first glue layer 560 does not require the use of a dam process, which is conducive to reducing manufacturing costs.

[0115] Optionally, the viscosity of the glue in the above embodiment can range from 200 CPS to 20000 CPS. The viscosity of the two layers of glue can be arbitrarily selected, and the viscosity value is not specifically limited in the embodiment of the present application.

[0116] In the embodiment of the present application, two layers of adhesive are used to fill the edge of the display module, which not only has a better appearance effect, but also is easy to implement in the process and has a low production cost.

[0117] [Example 2]

[0118] In the embodiment of the present application, the first filler located between the edge of the color film panel and the edge of the display circuit panel includes a magnetic member, and the second filler located between the edge of the upper polarizer and the edge of the first filler includes a metal member.

[0119] Fig. 9 A schematic diagram of another display module provided in an embodiment of the present application is shown.

[0120] like Fig. 9 As shown, the display module 900 includes: an upper polarizer 910, a color filter panel 920, a display circuit panel 930 and a lower polarizer 940 which are stacked. Among them, on the side where the display circuit panel 930 is connected to the electrical connector (not shown in the figure), the edge of the color filter panel 920 is retracted to the edge of the display circuit panel 930, and a magnetic member 960 is accommodated between the edge of the color filter panel 920 and the edge of the display circuit panel 930. The edge of the upper polarizer 910 is retracted to the edge of the color filter panel 920, and a metal member 970 is accommodated between the edge of the upper polarizer 910 and the edge of the magnetic member 960. The color of the metal member 970 can be the same as the color of the display module 900 when it is not lit.

[0121] Optionally, the magnetic member 960 may include a hard magnetic material. There may be a magnetic attraction effect between the metal member 970 and the magnetic member 960. The material of the metal member 970 may include steel or other materials that can be attracted by the magnetic member.

[0122] like Fig. 9As shown, in some embodiments, the display module 900 may further include: an adhesive layer 980, which may cover the magnetic member 960 and is used to fix the magnetic member 960 to the surface of the display circuit panel 930. The thickness of the magnetic member 960 may be less than the thickness of the color film panel 920, and the thickness of the adhesive layer 980 is also less than or equal to the thickness of the color film panel 920. Alternatively, in other embodiments, the thickness of the magnetic member 960 may be close to or the same as the thickness of the color film panel 920, the bottom surface of the magnetic member 960 may be connected to the display circuit panel 930 through the adhesive layer, and the top surface of the magnetic member 960 is attached to the metal member 970 to achieve a better magnetic attraction effect with the metal member 970.

[0123] Fig.10 Another schematic diagram of a display module provided in an embodiment of the present application is shown.

[0124] like Fig.10 As shown, the display module 900 may include a plurality of magnetic members 960, which are distributed on one side edge of the display circuit panel 930. The display circuit panel 930 may be connected to a plurality of electrical connectors 950 on this side. As an example, Fig.10 The electrical connector 950 shown in the figure can be a COF. A plurality of magnetic members 960 can be disposed between the plurality of electrical connectors 950 and / or at both ends of the plurality of electrical connectors 950 as a whole, so that the plurality of magnetic members 960 can be more evenly distributed on one side edge of the display circuit panel 930, thereby improving the magnetic attraction fixing effect with the metal member 970, so as to improve the reliability of the display module 900.

[0125] Optionally, the width of the magnetic member 960 may be less than or equal to the distance between the edge of the color film panel 920 and the edge of the display circuit panel 930 (for example, it may be Figure 7 The height of the magnetic member 960 may be less than or equal to the thickness of the color film panel 920 (for example, it may be Figure 7 H2), the length L1 of the magnetic member 960 may be less than or equal to the distance between two adjacent electrical connectors 950. The length L2 of the magnetic member 960 at both ends of the plurality of electrical connectors 950 is less than or equal to the distance between the electrical connectors 950 at both ends and the edge of the display circuit panel 930.

[0126] Optionally, the number of magnetic members 960 = the number of electrical connectors 950 * n + 2, where n is a positive integer. Optionally, one or more magnetic members 960 may be disposed between two adjacent electrical connectors 950 .

[0127] Optionally, the metal member 970 may be, for example, stainless steel SUS403. The thickness of the metal member 970 may be equal to or slightly less than the thickness H1 of the upper polarizer 910 (for example, Figure 7 H1 shown in ).

[0128] In the embodiment of the present application, magnetic parts and metal parts are used to fill the edge of the display module, which not only improves the flatness, but also solves the appearance problem and facilitates the removal of the metal parts, thereby facilitating the installation and maintenance of the display module.

[0129] [Example 3]

[0130] In the embodiment of the present application, the first filler located between the edge of the color film panel and the edge of the display circuit panel includes a glue layer, and the second filler located between the edge of the upper polarizer and the edge of the first filler includes a polyester board.

[0131] Fig.11 A schematic diagram of another display module provided in an embodiment of the present application is shown.

[0132] like Fig.11 As shown, the display module 1100 includes: an upper polarizer 1110, a color filter panel 1120, a display circuit panel 1130 and a lower polarizer 1140 which are stacked. Among them, on the side where the display circuit panel 1130 is connected to the electrical connector (not shown in the figure), the edge of the color filter panel 1120 is retracted to the edge of the display circuit panel 1130, and a glue layer 1160 is accommodated between the edge of the color filter panel 1120 and the edge of the display circuit panel 1130. The edge of the upper polarizer 1110 is retracted to the edge of the color filter panel 1120, and a polyester plate 1170 is accommodated between the edge of the upper polarizer 1110 and the edge of the glue layer 1160. The color of the polyester plate 1170 can be the same as the color of the display module 1100 when it is not lit.

[0133] Optionally, in the embodiment of the present application, the polyester plate 1170 may be a polyethylene terephthalate (PET) plate, referred to as a PET plate. The PET plate is a plate-shaped object formed by preparing a PET material. In some embodiments, the material of the upper polarizer 1110 may also be PET, and the material of the polyester plate 1170 may be the same as the material of the upper polarizer 1110.

[0134] In the embodiment of the present application, the color, haze and other parameters of the polyester board 1170 can be adjusted so that the appearance of the polyester board 1170 is consistent with the appearance of the unlit display module 1100, thereby improving the appearance of the display module 1100.

[0135] Fig.12 Another schematic diagram of a display module provided in an embodiment of the present application is shown.

[0136] like Fig.12As shown, in the embodiment of the present application, a polyester plate 1170 and a light shielding tape 1180 are accommodated between the edge of the upper polarizer 1110 and the edge of the adhesive layer 1160, and the polyester plate 1170 can be attached to the color film panel 1120 and the adhesive layer 1160 through the light shielding tape 1180. The color of the light shielding tape 1180 can be the same as the color of the display module 1100 when it is not lit.

[0137] In the embodiment of the present application, the color and other parameters of the light shielding tape 1180 can be adjusted to make the appearance of the polyester board 1170 consistent with the appearance of the unlit display module 1100, thereby improving the appearance of the display module 1100. In addition, the color adjustment of the light shielding tape 1180 is easier to implement and is conducive to reducing manufacturing costs compared to the color adjustment of the polyester board 1170. And the light shielding tape 1180 can further improve the stability of the polyester board 1170 in the display module 1100.

[0138] Optionally, in Fig.11 and Fig.12 In the illustrated embodiment, the thickness of the glue layer 1160 may be less than or equal to the thickness of the color filter panel 1120. Fig.11 In the illustrated embodiment, the thickness of the polyester sheet 1170 may be less than or equal to the thickness of the upper polarizer 1110. Fig.12 In the illustrated embodiment, the sum of the thicknesses of the polyester plate 1170 and the light shielding tape 1180 may be less than or equal to the thickness of the upper polarizer 1110 .

[0139] Through the technical solution of the embodiment of the present application, a polyester board (PET board) and an adhesive layer are used to fill the edge of the display module. PET has a certain elasticity and has a rebound effect when the user presses the depression, which is beneficial to further improve the appearance of the display module.

[0140] In order to further improve the appearance of the display module, in addition to providing several filling solutions in the above embodiments, the present application can also provide the following circuit board protection component related solutions.

[0141] Fig.13 Another schematic diagram of a display module provided in an embodiment of the present application is shown.

[0142] like Fig.13 As shown, in the embodiment of the present application, the display module 1300 includes an upper polarizer 1310, a color filter panel 1320, a display circuit panel 1330, and a lower polarizer 1340 in a stacked arrangement, and also includes an electrical connector 1350 and a circuit board protection member 1380. Optionally, the electrical connector 1350 in the embodiment of the present application can be Figure 2 In the embodiment shown, the COF 272 and the circuit board protection member 1380 may be Figure 2The circuit board protection member 290 in the illustrated embodiment. Figure 2 The technical solution of the embodiment shown in the figure, the electrical connector 1350 in the embodiment of the present application can be connected to the circuit board ( Fig.13 (not shown), the circuit board protection member 1380 can be used to protect the circuit board and achieve EMI between the circuit board and other electrical devices.

[0143] The circuit board protection component 1380 is arranged on the side where the display circuit panel 1330 is connected to the electrical connection component 1350, and a bending portion is formed at one end of the circuit board protection component 1380 close to the upper polarizer 1310, and the first sub-portion 1381 of the bending portion is parallel to the upper polarizer 1310, and the second sub-portion 1382 of the bending portion is perpendicular to the first sub-portion 1381, and there is a gap between the second sub-portion 1382 and the display circuit panel 1330.

[0144] In the technical solution provided in the embodiment of the present application, the circuit board protection member is provided with a bending portion, which can reduce the possibility of the circuit board protection member directly abutting against the panels in the display module (such as the display circuit panel), thereby reducing the occurrence of problems such as light leakage.

[0145] In some possible implementations, in a direction parallel to the upper polarizer 1310, the length C1 of the first sub-portion 1381 may be less than or equal to the distance between the edge of the upper polarizer 1310 and the edge of the display circuit panel 1330 (for example, it may be Figure 7 In some examples, the length C1 of the first sub-portion 1381 may be between 2 mm and 3 mm.

[0146] In this embodiment, the effect of the first sub-portion on the overall appearance of the display module can be reduced by designing the size of the first sub-portion, thereby further improving the appearance of the display module.

[0147] Optionally, in Fig.13 In the illustrated embodiment, the first filler located between the edge of the color filter panel and the edge of the display circuit panel includes a first adhesive layer 1361, and the second filler located between the edge of the upper polarizer and the edge of the first filler includes a second adhesive layer 1371. The first sub-portion 1381 in the circuit board protection member 1380 can be close to or abut against the second adhesive layer 1371. The upper surface of the first sub-portion 1381 can be flush with the upper surface of the upper polarizer 1310 and the upper surface of the second adhesive layer 1371. In this technical solution, the relevant implementation of the first adhesive layer 1361 and the second adhesive layer 1371 can refer to the above embodiment 1 ( Figures 5 to 8 The related description of the embodiment shown in the figure will not be repeated here.

[0148] Fig.14Another schematic diagram of a display module provided in an embodiment of the present application is shown.

[0149] like Fig.14 As shown, in the embodiment of the present application, the first filler located between the edge of the color filter panel and the edge of the display circuit panel includes a magnetic member 1362 and an adhesive layer 1363, and the second filler located between the edge of the upper polarizer and the edge of the first filler includes a metal member 1372. The first sub-portion 1381 in the circuit board protection member 1380 can be close to the adhesive layer 1363. The upper surface of the first sub-portion 1381 can be flush with the upper surface of the adhesive layer 1363 and the upper surface of the color filter panel 1320. In addition to being arranged on the surface of the adhesive layer 1363 and the color filter panel 1320, the metal member 1372 can also be extended to the surface of the first sub-portion 1381 in the circuit board protection member 1380. In this technical solution, the relevant implementations of the magnetic member 1362, the adhesive layer 1363 and the metal member 1372 can refer to the above embodiment 2 ( Figures 9 and 10 The related description of the embodiment shown in the figure will not be repeated here.

[0150] Fig.15 Another schematic diagram of a display module provided in an embodiment of the present application is shown.

[0151] like Fig.15 As shown, in the embodiment of the present application, the first filler located between the edge of the color filter panel and the edge of the display circuit panel includes a glue layer 1364, and the second filler located between the edge of the upper polarizer and the edge of the first filler includes a polyester plate 1373, and optionally, it may further include a light-shielding tape 1374. The first sub-portion 1381 in the circuit board protection member 1380 may be close to the glue layer 1364. The upper surface of the first sub-portion 1381 may be flush with the upper surface of the glue layer 1364 and the upper surface of the color filter panel 1320. In addition to being arranged on the surface of the glue layer 1364 and the color filter panel 1320, the polyester plate 1373 and the light-shielding tape 1374 may also be extended to the surface of the first sub-portion 1381 in the circuit board protection member 1380. In this technical solution, the relevant implementations of the glue layer 1364, the polyester plate 1373 and the light-shielding tape 1374 can refer to the above Example 3 ( Figure 11 to Figure 12 The related description of the embodiment shown in the figure will not be repeated here.

[0152] exist Fig.14 and Fig.15 In the illustrated embodiment, the circuit board protection component 1380 need not consider the appearance color. By extending the metal part or polyester board to the surface of the circuit board protection component 1380, the appearance color of the display module can be unified, which is beneficial to further reduce the manufacturing cost of the circuit board protection component 1380 and the display module.

[0153] The present application also provides a display screen, which may include the display module provided in any of the above embodiments.

[0154] Fig.16 A schematic diagram of a display screen provided in an embodiment of the present application is shown.

[0155] like Fig.16 As shown, in the embodiment of the present application, the display screen 1600 includes a backlight, an electrical connection, a circuit board, and a circuit board protection member in addition to the stacked upper polarizer 1610, the color filter panel 1620, the display circuit panel 1630, and the lower polarizer 1640. The upper polarizer 1610, the color filter panel 1620, the display circuit panel 1630, and the lower polarizer 1640 can refer to the relevant description of any of the above embodiments, and no further details are given here.

[0156] See also Fig.16 As shown, the backlight in the display screen 1600 may include: an LED light board 1651, an optical film layer 1652, a light guide plate 1653, a reflective sheet 1654, and a back plate 1655. The backlight and the display module may be connected to each other via a connector, wherein the connector may include, for example, a foam tape 1661, a rubber frame 1662, and a silicone pad 1663 as shown in the figure.

[0157] One side of the display circuit panel 1630 may be connected to an electrical connector, such as the COF 1672 shown in the figure, and the display circuit panel 1630 may be connected to the circuit board 1680 through the COF 1672. The COF 1672 may also be bound with a chip 1671, which may provide control signals related to the display screen.

[0158] The circuit board protection member 1690 may cover the side where the display screen is connected to the COF 1672 to protect the COF 1672 and related electronic components in the related electrical connectors.

[0159] On the side where the COF 1672 is connected to the display circuit panel 1630, a filler 1601 may be provided at the edge of the display circuit panel 1630 and the color film panel 1620. The filler 1601 may include a glue layer, or the filler may also be the related material provided in any of the above embodiments.

[0160] Optionally, Fig.16 The side of the middle circuit board protection member 1690 close to the connection between the display circuit panel 1630 and the COF 1672 may be a straight plate portion as shown in the figure, and the straight plate portion may be attached to the COF 1672 by a light shielding tape to reduce light leakage of the display screen.

[0161] To further improve light leakage, Fig.16The circuit board protection member 1690 shown in FIG. 1 may also be provided with a bending portion on the side close to the connection between the display circuit panel 1630 and the COF 1672. The relevant technical scheme of the bending portion can be referred to above. Figures 13 to 15 A related description of any embodiment in .

[0162] It should be understood that the specific examples in this article are only intended to help those skilled in the art better understand the embodiments of the present application, rather than to limit the scope of the embodiments of the present application.

[0163] It should also be understood that the various implementation methods described in this specification can be implemented individually or in combination, and the embodiments of the present application are not limited to this.

[0164] In the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0165] The term "and / or" in this application is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may mean: A exists, A and B exist at the same time, and B exists.

[0166] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0167] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0168] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", and "right" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0169] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layers and the area of ​​the regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include deviations in shape due to, for example, manufacturing. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0170] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A display module, characterized in that: include: An upper polarizer, a color film panel, a display circuit panel and a lower polarizer are stacked; On the side where the display circuit panel is connected to the electrical connector, the edge of the color filter panel is retracted inside the edge of the display circuit panel, and the edge of the upper polarizer is retracted inside the edge of the color filter panel; A first filler is contained between the edge of the color film panel and the edge of the display circuit panel, and a second filler is contained between the edge of the upper polarizer and the edge of the first filler, wherein the color of the second filler is the same as the color of the display module when it is not lit.

2. The display module according to claim 1, characterized in that: Part of the second filler is disposed on the surface of the color filter panel and covers the electrical connection points on the surface of the color filter panel.

3. The display module according to claim 1, characterized in that: The first filler includes a first adhesive layer, and the second filler includes a second adhesive layer.

4. The display module according to claim 3, characterized in that: The first adhesive layer and the second adhesive layer are made of different materials.

5. The display module according to claim 3, characterized in that: The first adhesive layer and / or the second adhesive layer includes at least one of the following materials: a cross-linking agent, a color paste, a thickener, and a matting agent.

6. The display module according to claim 3, characterized in that: A convex surface is formed on a side of the first adhesive layer away from the upper polarizer, and / or a convex surface is formed on a side of the second adhesive layer away from the color filter panel.

7. The display module according to claim 3, characterized in that: Compared to the plane where the upper surface of the upper polarizer is located, the flatness of the second adhesive layer ranges from -50 μm to 50 μm.

8. The display module according to claim 1, characterized in that: The first filler includes a magnetic member, and the second filler includes a metal member.

9. The display module according to claim 8, characterized in that: One side of the display circuit panel is connected to a plurality of electrical connectors, and the first filler includes a plurality of magnetic components, which are distributed between the plurality of electrical connectors and / or at both ends of the plurality of electrical connectors as a whole.

10. The display module according to claim 8, characterized in that: The first filler also includes a glue layer, and the glue layer covers the magnetic component.

11. The display module according to claim 8, characterized in that: The height of the magnetic member is less than or equal to the thickness of the color film panel, and / or the width of the magnetic member is less than or equal to the distance from the edge of the color film panel to the edge of the display circuit panel.

12. The display module according to claim 1, characterized in that: The first filler includes a glue layer, and the second filler includes a polyester board, and the polyester board has the same color as the display module when it is not lit.

13. The display module according to claim 1, characterized in that: The first filler includes a glue layer, and the second filler includes a polyester board and a light-shielding tape, wherein the color of the light-shielding tape is the same as the color of the display module when it is not lit.

14. The display module according to any one of claims 1 to 13, characterized in that: The display module further comprises: a circuit board and a circuit board protection member, wherein the circuit board protection member is arranged on a side where the display circuit panel is connected to the electrical connector; A bending portion is formed at one end of the circuit board protection component close to the upper polarizer, a first sub-portion of the bending portion is parallel to the upper polarizer, a second sub-portion of the bending portion is perpendicular to the first sub-portion, and a gap is formed between the second sub-portion and the display circuit panel.

15. The display module according to claim 14, characterized in that: In a direction parallel to the upper polarizer, the length of the first sub-portion is less than or equal to the distance between the edge of the upper polarizer and the edge of the display circuit panel.

16. The display module according to claim 14, characterized in that: In a direction parallel to the upper polarizer, the length of the first sub-portion is between 2 mm and 3 mm.

17. The display module according to claim 14, characterized in that: The second filler includes a metal piece or a polyester board, the surface of the first sub-part is flush with the surface of the color film panel, and the metal piece or the polyester board is extended and arranged on the surface of the first sub-part.

18. A display screen, characterized in that: include: Backlight, and The display module according to any one of claims 1 to 17.

Images