Display module and display device
By employing a wave-shaped light-transmitting protective film and a telescopic plate structure in the display module, the trace mura problem caused by touch pressing is solved, improving the screen's resistance to deformation and optical image quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HKC CORP LTD
- Filing Date
- 2023-12-06
- Publication Date
- 2026-07-03
Smart Images
Figure CN117706818B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, specifically to a display module and display device. Background Technology
[0002] Trace mura is a display defect that occurs when a hand or other object presses or slides across the screen, leaving a persistent mark that can affect the screen's normal display.
[0003] In the display modules of related technologies, the module glass deforms when touched, thus forming a trace mura caused by pressing. Summary of the Invention
[0004] In view of this, this application provides a display module and display device to solve the problem of trace mura caused by pressing or sliding the screen of the display module in the prior art.
[0005] To solve the above-mentioned technical problems, the first technical solution provided in this application is as follows: a display module is provided, including a substrate, a driving circuit layer, a first diffuser sheet, and a second diffuser sheet. The driving circuit layer is disposed on one side of the substrate; the first diffuser sheet is disposed on the side of the driving circuit layer away from the substrate; the second diffuser sheet is disposed on the side of the first diffuser sheet away from the driving circuit layer; wherein, a first light-transmitting protective film and a second light-transmitting protective film are disposed opposite to each other between the first diffuser sheet and the second diffuser sheet; both the first light-transmitting protective film and the second light-transmitting protective film are wavy in shape, and the wavy shape includes wave peaks and troughs arranged alternately; wherein, in the normal display state, the wave peaks of the first light-transmitting protective film correspond to the wave peaks of the second light-transmitting protective film; in the state of receiving a touch press signal, the wave peaks of the first light-transmitting protective film correspond to the troughs of the second light-transmitting protective film.
[0006] In one embodiment, both the first and second light-transmitting protective films are U-shaped wavy, with rounded peaks and troughs spaced apart sequentially. In normal display mode, the peaks of the U-shaped wavy shape of the first and second light-transmitting protective films correspond to each other. When a touch press signal is received, the peaks of the U-shaped wavy shape of the first and second light-transmitting protective films correspond to each other.
[0007] In one embodiment, the display module further includes a brightness enhancement film, which is disposed on the side of the driving circuit layer away from the substrate, and the driving circuit layer is disposed between the substrate and the brightness enhancement film; wherein the brightness enhancement film is bonded to the substrate.
[0008] In one embodiment, the display module further includes a first telescopic plate, a second telescopic plate, and a connecting frame. The first telescopic plate is disposed at both ends of the first diffuser sheet along a first direction; the second telescopic plate is disposed at both ends of the second diffuser sheet along the first direction; the connecting frame is disposed at both ends of the first diffuser sheet and the second diffuser sheet along a second direction; wherein the connecting frame connects the first telescopic plate and the second telescopic plate in the second direction; the first telescopic plate and the second telescopic plate are configured to extend or retract upon receiving a touch press signal; the first direction is perpendicular to the second direction.
[0009] In one embodiment, both the first and second light-transmitting protective films are made of transparent polyester.
[0010] In one embodiment, the connecting frame, the first telescopic plate, the second telescopic plate, the first diffuser sheet, and the second diffuser sheet are arranged to form a diffusion system with a closed space. The closed space is filled with a transparent liquid, and the transparent liquid, the first light-transmitting protective film, and the second light-transmitting protective film are all disposed within the closed space. The refractive index of the transparent liquid is the same as or similar to that of the transparent polyester.
[0011] In one embodiment, the transparent liquid is made of chloroform; both the first telescopic plate and the second telescopic plate are made of piezoelectric ceramic.
[0012] In one embodiment, the display module further includes a plurality of light-emitting units, a reflective layer, and a back plate. The plurality of light-emitting units are spaced apart on the side of the second diffuser sheet away from the first diffuser sheet. The reflective layer is disposed on the side of the plurality of light-emitting units away from the second diffuser sheet. The back plate includes a bottom plate and a side plate. The bottom plate is disposed on the side of the reflective layer away from the light-emitting units. The side plate extends from the bottom plate to the connecting frame and covers the connecting frame. The side of the plurality of light-emitting units away from the bottom plate forms a light-emitting surface.
[0013] In one embodiment, the display module further includes: a first polarizer and a second polarizer, wherein the first polarizer is disposed on the side of the substrate away from the driving circuit layer; the second polarizer is disposed between the driving circuit layer and the brightness enhancement film, and is disposed opposite to the first polarizer; wherein both the first polarizer and the second polarizer are designed to allow light with only a single polarization direction to pass through.
[0014] To solve the above-mentioned technical problems, the second technical solution provided in this application is: to provide a display device, including a touch module and a display module, wherein the display module is electrically connected to the touch module; the display module is any of the display modules described above.
[0015] The beneficial effects of this application are as follows: Unlike the prior art, the display module of this application includes a substrate, a driving circuit layer, a first diffuser sheet, and a second diffuser sheet. The driving circuit layer is disposed on one side of the substrate; the first diffuser sheet is disposed on the side of the driving circuit layer away from the substrate; and the second diffuser sheet is disposed on the side of the first diffuser sheet away from the driving circuit layer. A first light-transmitting protective film and a second light-transmitting protective film are disposed opposite to each other between the first and second diffuser sheets. Both the first and second light-transmitting protective films are wavy in shape, with wave peaks and troughs arranged alternately. This application achieves this by having the wave peaks of the first and second light-transmitting protective films corresponding to each other in the normal display state, and the wave peaks of the first and second light-transmitting protective films corresponding to each other when a touch pressure signal is received. This allows the substrate to resist deformation caused by pressure, thereby preventing scratches and tracemura caused by screen pressure. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.
[0017] Figure 1 This is a schematic diagram of the display module provided in this application under normal conditions;
[0018] Figure 2 This is a schematic diagram of the display module provided in this application in the touch-press state;
[0019] Figure 3 yes Figure 1 Enlarged structural diagram of section A;
[0020] Figure 4 yes Figure 2 Enlarged structural diagram of part A' in the middle;
[0021] Figure 5 This is a simplified structural diagram of the display device provided in this application.
[0022] Explanation of reference numerals in the attached figures:
[0023] 200. Display device; 201. Touch module; 100. Display module; 10. Substrate; 101. Adhesive layer; 102. First polarizer; 103. Second polarizer; 11. Color filter substrate; 12. Array substrate; 20. Driving circuit layer; 30. Diffusion system; 31. First diffuser; 32. Second diffuser; 33. First telescopic plate; 34. Second telescopic plate; 35. Connecting frame; 36. Enclosed space; 40. Brightness enhancement film; 50, diffuser plate; 61, first light-transmitting protective film; 611, first peak; 612, first trough; 62, second light-transmitting protective film; 621, second peak; 622, second trough; 63, transparent liquid; 70, back plate; 71, bottom plate; 72, side plate; 80, reflective layer; 90, light-emitting unit; 91, support frame; L1, first length; L2, second length; L3, third length; L4, fourth length. Detailed Implementation
[0024] 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.
[0025] The terms "first" and "second" in 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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications will also change accordingly. 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.
[0026] 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 separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0027] With the development of new energy vehicles, touchscreens have become standard equipment in automobiles. IPS (In-Plane Switching) screens are widely used in automotive displays due to their fast response speed and high transmittance. However, due to the inherent structure of their liquid crystal arrangement, IPS screens are prone to mura when subjected to touch and pressure, especially when displaying black screens. Since automotive displays are often used outdoors, their brightness needs to be very high, typically exceeding 1000 nits. Mura on IPS screens is exacerbated under high brightness conditions. Therefore, mura is currently a significant weakness of IPS automotive products.
[0028] In existing technologies, an air gap must be provided between the glass substrate and the film in an LCD module to prevent the polarizer on the underside of the LCD screen from rubbing against the film during vehicle vibrations and scratching the screen. Because of this air gap, the LCD glass is prone to deforming into the space below when touched, creating a pressing mura.
[0029] To address the aforementioned problems, this application provides a new display module and display device.
[0030] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the display module provided in this application under normal conditions; Figure 2 This is a schematic diagram of the display module provided in this application in the touch-press state; Figure 3 yes Figure 1 Enlarged structural diagram of section A; Figure 4 yes Figure 2 A magnified schematic diagram of part A' in the middle.
[0031] An embodiment of this application provides a display module 100 including a substrate 10, a driving circuit layer 20, a first diffuser 31, and a second diffuser 32. The driving circuit layer 20 is disposed on one side of the substrate 10; the first diffuser 31 is disposed on the side of the driving circuit layer 20 away from the substrate 10; and the second diffuser 32 is disposed on the side of the first diffuser 31 away from the driving circuit layer 20. A first light-transmitting protective film 61 and a second light-transmitting protective film 62 are disposed opposite to each other between the first diffuser 31 and the second diffuser 32. The first light-transmitting protective film 61 and the second light-transmitting protective film 62 are both wavy in shape, and the wavy shape includes wave peaks and troughs arranged alternately.
[0032] Specifically, the first diffuser 31 and the second diffuser 32 are respectively disposed on opposite sides of the driving circuit layer 20, which can adjust the angle of light, but the second diffuser 32 does not contact the driving circuit layer 20.
[0033] In one embodiment, a diffuser plate 50 may also be provided on the side of the second diffuser 32 away from the driving circuit layer 20. The diffuser plate 50 is provided on the side of the second diffuser 32 away from the first diffuser 31. The diffuser plate 50 can be used to adjust the beam angle of the light distribution curve.
[0034] A first light-transmitting protective film 61 and a second light-transmitting protective film 62 are disposed opposite to each other between the first diffuser 31 and the second diffuser 32. Both the first light-transmitting protective film 61 and the second light-transmitting protective film 62 can be wavy, thus both have peaks and troughs. For ease of explanation, in the embodiments provided in this application, the peak of the first light-transmitting protective film 61 is defined as the first peak 611, and the trough is defined as the first trough 612. The peak of the second light-transmitting protective film 62 is defined as the second peak 621, and the trough is defined as the second trough 622. The first light-transmitting protective film 61 and the second light-transmitting protective film 62 are used to support the gap between the display panel and the backlight module, prevent the liquid crystal molecules in the display panel from deforming under pressure stress, and prevent the brightness enhancement film from rubbing and scratching the polarizer in the display panel. In addition, the first light-transmitting protective film 61 and the second light-transmitting protective film 62, while protecting the polarizer, also have the effect of not affecting the light emitted from the backlight module because they allow light to pass through.
[0035] One of the main improvements and inventive points of this application is that the first light-transmitting protective film 61 and the second light-transmitting protective film 62 display different states under normal display and under pressed conditions. That is, under normal display conditions, the first peak 611 of the first light-transmitting protective film 61 corresponds to the second peak 621 of the second light-transmitting protective film 62; under the condition of receiving a touch press signal, the first peak 611 of the first light-transmitting protective film 61 corresponds to the second trough 622 of the second light-transmitting protective film 62. It can be understood that the main body receiving touch press information can be the driving circuit layer 20, which may include a driving chip (not shown) and a printed circuit board (not shown). The driving chip acts as a control unit (not shown) to receive touch press information. For example, it can be electrically connected to the driving chip through a sensor (not shown) so that after the sensor receives the touch press information on the substrate 10 or the light-transmitting protective film, it transmits the touch press information to the driving chip, thereby controlling the first light-transmitting protective film 61 and the second light-transmitting protective film 62 to adjust their states differently from the normal display state.
[0036] In a further embodiment, both the first light-transmitting protective film 61 and the second light-transmitting protective film 62 are U-shaped wavy, with rounded peaks and rounded troughs arranged alternately. In the normal display state, the first peak 611 of the U-shaped wavy shape of the first light-transmitting protective film 61 corresponds to the second peak 621 of the U-shaped wavy shape of the second light-transmitting protective film 62. When the display module 100 is touched, that is, when the driving circuit layer 20 receives the external touch pressing information, the first peak 611 of the U-shaped wavy shape of the first light-transmitting protective film 61 corresponds to the second trough 622 of the U-shaped wavy shape of the second light-transmitting protective film 62.
[0037] In one embodiment, the substrate 10 includes an array substrate 12 and a color filter substrate 11 disposed opposite each other, wherein a liquid crystal layer (not shown) is filled between the array substrate 12 and the color filter substrate 11. Both the array substrate 12 and the color filter substrate 11 may use glass as their substrate 10 to fabricate other functional layers on their substrate 10. In the embodiments of this application, the array substrate 12 is disposed close to the driving circuit layer 20.
[0038] In one embodiment, the display module 100 further includes a brightness enhancement film 40, which is disposed on the side of the driving circuit layer 20 away from the substrate 10, and the driving circuit layer 20 is disposed between the substrate 10 and the brightness enhancement film 40; wherein the brightness enhancement film 40 is bonded to the substrate 10.
[0039] Specifically, the embodiment provided in this application differs from the prior art in that the dual brightness enhancement film 40 (DEBF) is bonded to the substrate 10. This can be understood as a zero-gap arrangement between the substrate 10 and the brightness enhancement film 40, meaning there is no air gap between the glass and the film as in the prior art. The bonded arrangement of the substrate 10 and the brightness enhancement film 40 can initially improve resistance to external pressure, reducing deformation of the substrate 10 and pressure mura caused by touch.
[0040] In one embodiment, the display module 100 further includes a first telescopic plate 33, a second telescopic plate 34, and a connecting frame 35. The first telescopic plate 33 is disposed at both ends of the first diffuser plate 31 along a first direction; the second telescopic plate 34 is disposed at both ends of the second diffuser plate 32 along the first direction; and the connecting frame 35 is disposed at both ends of the first diffuser plate 31 and the second diffuser plate 32 along a second direction. That is, the first telescopic plate 33 and the second telescopic plate 34 are connected by the connecting frame 35 in the second direction. The first direction is perpendicular to the second direction.
[0041] Specifically, the first telescopic plate 33 and the second telescopic plate 34 are configured to extend or shorten when a touch press signal is received. This can be understood as follows: the first telescopic plate 33 and the second telescopic plate 34 can apply different voltages to the first telescopic plate 33 and the second telescopic plate 34 through the driving circuit layer 20 when the touch press signal is received, so that the first telescopic plate 33 and the second telescopic plate 34 can display different lengths in the two states respectively.
[0042] like Figure 3 and Figure 4 As shown, in the normal display state, the first telescopic plate 33 is shorter, defined as the first length L1. When the driving circuit layer 20 receives a touch press signal, a first voltage (not shown) is applied to the first telescopic plate 33 to extend its length, defined as the second length L2. In the normal display state, the second telescopic plate 34 is longer, defined as the third length L3. When the driving circuit layer 20 receives a touch press signal, a first voltage is applied to the second telescopic plate 34 to shorten its length, defined as the fourth length L4. The third length L3 is greater than the first length L1, meaning that in the normal display state, the length of the second telescopic plate 34 is greater than the length of the first telescopic plate 33. When the driving circuit layer 20 receives a touch press signal, it controls the second telescopic plate 34 to input a first voltage, causing its length to shorten based on the third length L3, thereby reaching the fourth length L4. It should be noted that when the driving circuit layer 20 receives a touch press signal, the first telescopic plate 33 is extended to a second length L2 by voltage control. This second length L2 is the same as the fourth length L4 after the second telescopic plate 34 is shortened. Thus, in the normal state, the first peak 611 of the first telescopic plate 33 corresponds to the second peak 621 of the second light-transmitting protective film 62; and when a touch press signal is received, the first peak 611 of the first light-transmitting protective film 61 corresponds to the second trough 622 of the second light-transmitting protective film 62.
[0043] This application, by setting the peaks of the first and second light-transmitting protective films 61 and 62 in a corresponding manner during normal display, ensures that the first and second light-transmitting protective films 61 and 62 are in a flexible state. When this display module 100 is applied to an automobile, the first and second light-transmitting protective films 61 and 62 will not collide or rub against each other, preventing scratches, during normal vehicle operation. Simultaneously, the first and second light-transmitting protective films 61 and 62 will not collide or scratch against the brightness enhancement film 40. However, when the driving circuit layer 20 receives a touch press signal, such as... Figure 1 and Figure 3As shown, the first peak 611 of the first light-transmitting protective film 61 and the second valley 622 of the second light-transmitting protective film 62 are correspondingly arranged, so that when the module 100 is pressed, the relatively arranged first peak 611 and second valley 622 can form a mutual support, achieving a rigid state, so that the substrate 10, the brightness enhancement film 40, the first light-transmitting protective film 61 and the second light-transmitting protective film 62 can all be supported, thereby preventing the substrate 10 from undergoing large deformation and further preventing the generation of pressure mura.
[0044] The second direction can be understood as the stacking direction of the functional layers of the display module 100, while the first direction is perpendicular to the second direction. For example, the first direction is horizontal, and the second direction is vertical. In this embodiment, the first light-transmitting protective film 61 and the second light-transmitting protective film 62 are both made of transparent PET (polyethylene terephthalate), and the first telescopic plate 33 and the second telescopic plate 34 are both made of piezoelectric ceramic. In other embodiments, the first light-transmitting protective film 61 and the second light-transmitting protective film 62 may also be made of other polymer materials, and this application does not limit this.
[0045] In one embodiment, a connecting frame 35, a first telescopic plate 33, a second telescopic plate 34, a first diffuser 31, and a second diffuser 32 are arranged to form a diffusion system 30 with a closed space 36. The closed space 36 is filled with a transparent liquid 63. The transparent liquid 63, the first light-transmitting protective film 61, and the second light-transmitting protective film 62 are all disposed within the closed space 36. The refractive index of the transparent liquid 63 is the same as or similar to that of transparent PET. In this embodiment, the transparent liquid 63 is made of chloroform. By setting the refractive index of the material used for the transparent liquid 63 to be the same as or similar to that of transparent PET, optical shadows are prevented from forming between the U-shaped wavy first light-transmitting protective film 61 and the second light-transmitting protective film 62. This avoids the problem of mura (distortion) that easily occurs when the display module 100 is touched and pressed during black screen conditions.
[0046] In one embodiment, the display module 100 further includes a plurality of light-emitting units 90, a reflective layer 80, and a back plate 70. The plurality of light-emitting units 90 are spaced apart on the side of the diffuser plate 50 away from the second diffuser sheet 32. The side of the plurality of light-emitting units 90 away from the base plate 71 forms a light-emitting surface (not shown). The reflective layer 80 is disposed on the side of the plurality of light-emitting units 90 away from the diffuser plate 50, and the plurality of light-emitting units 90 can be disposed on the surface of the reflective layer 80 near the diffuser plate 50. In a further embodiment, a support frame 91 can be disposed on the side of the diffuser plate 50 away from the second diffuser sheet 32 to support the diffuser plate 50, so that a certain distance is maintained between the diffuser plate 50 and the reflective layer 80. The support frame 91 can be specifically disposed between the spaced-apart light-emitting units 90, and in a second direction, one end of the support frame 91 abuts against the surface of the diffuser plate 50 away from the second diffuser sheet 32, and the other end is disposed on the surface of the reflective layer 80 near the diffuser plate 50. That is, the support frame 91 and the light-emitting units 90 are disposed on the same layer. It is understandable that the width of the support frame 91 needs to be as narrow as possible while ensuring the support effect, so as to avoid the support frame 91 affecting the reflection effect of the reflective layer 80.
[0047] In one embodiment, such as Figure 1 As shown, the back plate 70 includes a bottom plate 71 and a side plate 72. The bottom plate 71 is disposed on the side of the reflective layer 80 away from the light-emitting unit 90. The side plate 72 extends from the bottom plate 71 to the connecting frame 35 and covers the connecting frame 35. The back plate 70 can be configured as a plate-like structure with a groove structure (not shown). The aforementioned reflective layer 80, light-emitting unit 90, support frame 91, diffuser plate 50, and closed diffuser system 30 are sequentially disposed on the bottom plate 71 along the second direction. A brightness enhancement film 40 is disposed on the side of the diffuser system 30 away from the diffuser plate 50. An adhesive layer 101 is disposed on opposite sides of the brightness enhancement film 40. The adhesive layer 101 is in the same layer as the brightness enhancement film 40 and is disposed at intervals.
[0048] In one embodiment, such as Figure 1 and Figure 2 As shown, the display module 100 also includes a first polarizer 102 and a second polarizer 103. The first polarizer 102 and the second polarizer 103 are optical films that allow only light with a single polarization direction to pass through, thereby achieving a polarization effect. The first polarizer 102 and the second polarizer 103 are respectively disposed on opposite sides of the substrate 10 in the second direction. Specifically, the first polarizer 102 is disposed on the side of the color filter substrate 11 away from the array substrate 12, and the second polarizer 103 is specifically disposed between the array substrate 12 and the brightness enhancement film 40. The substrate 10 is connected to the back plate 70 by bonding the second polarizer 103 to the surface of the brightness enhancement film 40 near the brightness enhancement film 40 through an adhesive layer 101 that is in the same layer as the brightness enhancement film 40 and spaced apart.
[0049] It is understood that the first polarizer 102, the second polarizer 103, the brightness enhancement film 40, and the substrate 10 are not disposed within the groove structure, but rather cover the groove structure. The brightness enhancement film 40 is connected to the second polarizer 103 at both ends via an adhesive layer 101, thereby connecting the substrate 10 to the side plate 72 of the back plate 70. The adhesive layer 101 can specifically be a type of adhesive with a certain thickness, such as foam adhesive.
[0050] To address the aforementioned technical problems, this application also provides a display device 200.
[0051] Please see Figure 5 , Figure 5 This is a simplified structural diagram of the display device provided in this application.
[0052] In one embodiment, the display device 200 includes a touch module 201 and a display module 100, the display module 100 being electrically connected to the touch module 201; the touch module 201 facing the light-emitting surface; the display module 100 being any of the above-mentioned display modules 100, which will not be described in detail here.
[0053] The display module disclosed in this application includes a substrate, a driving circuit layer, a first diffuser sheet, a second diffuser sheet, and a diffuser plate. The driving circuit layer is disposed on one side of the substrate; the first diffuser sheet is disposed on the side of the driving circuit layer away from the substrate; the second diffuser sheet is disposed on the side of the first diffuser sheet away from the driving circuit layer; and the diffuser plate is disposed on the side of the second diffuser sheet away from the first diffuser sheet. A first light-transmitting protective film and a second light-transmitting protective film are disposed opposite to each other between the first and second diffuser sheets. Both the first and second light-transmitting protective films are wavy in shape, with the wavy shape including wave peaks and troughs arranged alternately. This application achieves this by having the wave peaks of the first and second light-transmitting protective films corresponding to each other in the normal display state, and the wave peaks of the first and second light-transmitting protective films corresponding to each other in the state of receiving a touch press signal. This allows the substrate to resist deformation caused by pressing, preventing scratches and traces caused by pressing the screen. Meanwhile, the display module provided in this application can avoid scratches on the brightness enhancement film and LCD screen; avoid optical quality defects such as shadows on the screen; and will not produce abnormal noises when the vehicle is in motion or when it is touched or pressed from the outside.
[0054] The above description is merely an embodiment of this application and does 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 by include: substrate; A driving circuit layer is disposed on one side of the substrate; A first diffuser sheet is disposed on the side of the driving circuit layer away from the substrate; The second diffuser is disposed on the side of the first diffuser away from the driving circuit layer; The first and second diffusers are provided with a first and a second light-transmitting protective film disposed opposite to each other. The first and second light-transmitting protective films support the gap between the display panel and the backlight module. Both the first and second light-transmitting protective films are wavy in shape, with wave peaks and troughs arranged alternately. In normal display mode, the wave peaks of the first and second light-transmitting protective films correspond to each other, making them flexible. When a touch press signal is received, the wave peaks of the first and second light-transmitting protective films correspond to each other, so that when the display module is pressed, the wave peaks of the first and second light-transmitting protective films support each other, achieving a rigid state and supporting the substrate.
2. The display module according to claim 1, characterized in that, Both the first and second light-transmitting protective films are U-shaped wavy, with rounded peaks and troughs spaced apart sequentially. In normal display mode, the peaks of the U-shaped wavy shape of the first and second light-transmitting protective films correspond to each other. When a touch press signal is received, the peaks of the U-shaped wavy shape of the first and second light-transmitting protective films correspond to each other.
3. The display module according to claim 1, characterized in that, The display module also includes: A brightness enhancement film is disposed on the side of the driving circuit layer away from the substrate, and the driving circuit layer is disposed between the substrate and the brightness enhancement film; The brightness enhancement film is bonded to the substrate.
4. The display module according to claim 1, characterized in that, The display module also includes: The first telescopic plate is disposed at both ends of the first diffuser plate along the first direction; The second telescopic plate is disposed at both ends of the second diffuser along the first direction; A connecting frame is disposed at both ends of the first diffuser and the second diffuser along the second direction; The connecting frame connects the first telescopic plate and the second telescopic plate in the second direction; the first telescopic plate and the second telescopic plate are configured to extend or shorten in the state of receiving a touch press signal; the second direction is the stacking direction of the functional layers of the display module, and the first direction is perpendicular to the second direction.
5. The display module according to claim 4, characterized in that, Both the first and second light-transmitting protective films are made of transparent polyester.
6. The display module according to claim 5, characterized in that, The connecting frame, the first telescopic plate, the second telescopic plate, the first diffuser sheet, and the second diffuser sheet are arranged to form a diffusion system with a closed space. The closed space is filled with a transparent liquid. The transparent liquid, the first light-transmitting protective film, and the second light-transmitting protective film are all disposed within the closed space. The refractive index of the transparent liquid is the same as or similar to that of the transparent polyester.
7. The display module according to claim 6, characterized in that, The transparent liquid is made of chloroform; both the first telescopic plate and the second telescopic plate are made of piezoelectric ceramic.
8. The display module according to claim 4, characterized in that, The display module also includes: Multiple light-emitting units are spaced apart on the side of the second diffuser sheet away from the first diffuser sheet; A reflective layer is disposed on the side of the plurality of light-emitting units away from the second diffuser sheet; The backplate includes a bottom plate and a side plate. The bottom plate is disposed on the side of the reflective layer away from the light-emitting unit. The side plate extends from the bottom plate to the connecting frame and covers the connecting frame. The side of the plurality of light-emitting units away from the bottom plate forms a light-emitting surface.
9. The display module according to claim 8, characterized in that, The display module also includes: A first polarizer is disposed on the side of the substrate away from the driving circuit layer; The second polarizer is disposed between the driving circuit layer and the brightness enhancement film, and is disposed opposite to the first polarizer.
10. A display device, characterized in that, include: Touch module; as well as The display module is electrically connected to the touch module; The display module is the display module described in any one of claims 1 to 9.