Display screen and vehicle display screen

Abstract

The application discloses a display screen and a vehicle-mounted display screen. The display screen comprises a display screen and a backlight module. The backlight module comprises a back plate, a light source arranged on one side of the back plate facing the display panel, a diffusion plate arranged on one side of the light source away from the back plate, and an optical film arranged on one side of the diffusion plate away from the back plate. The diffusion plate is provided with a control device to control the zero gap arrangement of the optical film and the display panel when touch control. The above structure solves the pressing mura and improves the touch display effect.

Description

Technical Field

[0001] This invention relates to the field of displays, and in particular to displays and automotive displays. Background Technology

[0002] With the development of new energy vehicles, touch screens have become a standard feature in automobiles. IPS (In-Plane Switching) technology is a liquid crystal panel technology introduced by Hitachi in 2001. IPS solves the viewing angle problem by making the apparent length of molecules the same in all directions.

[0003] IPS panels are widely used in automotive displays due to their fast response time and high transmittance. However, due to their inherent liquid crystal arrangement, IPS panels are prone to mura (defects) when touched or pressed, 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 panels is exacerbated under high brightness conditions, making it a major weakness of IPS automotive products.

[0004] In existing technologies, an air gap is typically required between the LCD module glass and the optical film to prevent the polarizer and film on the underside of the LCD screen from rubbing against each other and scratching the screen during vehicle vibrations. Because of this air gap, the LCD glass deforms downwards when touched, making it prone to creating a pressure mark. Please refer to [link / reference] for details. Figure 1 , Figure 1 This refers to a display screen in the prior art. Summary of the Invention

[0005] The main technical problem addressed by this application is to provide a display screen and an in-vehicle display screen that solves the problem of press-to-mura and improves the touch display effect.

[0006] To address the aforementioned problems, a first aspect of this application provides a display screen, comprising a display panel and a backlight module, wherein the backlight module comprises: a back plate; a light source disposed on the side of the back plate facing the display panel; a diffuser plate disposed on the side of the light source away from the back plate and spaced apart from the light source; and an optical film disposed on the side of the diffuser plate away from the back plate; wherein a buffer structure is further provided between the diffuser plate and the optical film, the buffer structure being used to support the optical film and the display panel to be positioned with zero gap during touch.

[0007] The backlight module also includes a control device connected to the buffer structure, which, under the action of the control device, switches between a soft state and a hard state or vice versa.

[0008] The buffer structure includes an air bladder disposed between the diffuser plate and the optical film, and diffuse particles filled in the air bladder. The air bladder includes an air inlet for air inlet and outlet, the air inlet penetrating the diffuser plate. A first solenoid valve is disposed in the air inlet, the first solenoid valve being used to control the opening and closing of the air inlet, thereby controlling the diffuse particles in the air bladder to remain in a soft state after air inlet and to remain in a hard state after air outlet.

[0009] The first solenoid valve contains a first piezoelectric ceramic plate. Under the action of electricity, the first piezoelectric ceramic plate extends towards the air port to block the air port and close it, or retracts away from the air port to open it.

[0010] The control device includes a vacuuming device connected to the air inlet of the airbag. The vacuuming device includes a vacuum cylinder and a vacuum piston that are sealed to the four walls of the vacuum cylinder. An electromagnetic plate is provided on the bottom surface of the vacuum cylinder opposite to the vacuum piston. A permanent magnet is fixedly provided on the side of the vacuum piston near the electromagnetic plate. The positive or negative charge on the electromagnetic plate controls the permanent magnet to drive the vacuum piston to extend and retract within the vacuum cylinder, thereby controlling the amount of gas entering and leaving the airbag and realizing the air intake and exhaust of the airbag.

[0011] A sealed space is formed between the diffuser plate and the back plate. The side of the vacuum pump piston away from the vacuum cylinder is connected to the sealed space so that the air pressure in the sealed space can be controlled by the extension and retraction of the vacuum pump piston, thereby controlling the air pressure in the airbag connected to the sealed space, and realizing the extraction and intake of air in the airbag.

[0012] The back plate is provided with a second solenoid valve that connects the sealed space with the outside air. The second solenoid valve is provided with a second piezoelectric ceramic plate. The second piezoelectric ceramic plate extends or contracts under the action of electricity to control the opening or closing of the second solenoid valve, thereby controlling the connection between the sealed space and the outside air.

[0013] The buffer structure includes multiple airbags, each airbag having an air port, and each air port having a first solenoid valve. The air ports of the multiple airbags are connected to a vacuum pumping device.

[0014] The control device further includes a liftable support frame disposed between the diffuser plate and the back plate. The expansion and contraction of the support frame controls the diffuser plate to move closer to the display panel when touched, so that the optical film and the display panel are set with zero gap when touched.

[0015] A second aspect of this application provides an in-vehicle display screen, wherein the display panel includes a touch display panel as described in any embodiment of the first aspect, and the in-vehicle display screen is applied in a vehicle.

[0016] The beneficial effects of this application are: by using a control device to ensure that the optical film and the display panel are set with zero gap during touch, the pressing of the screen is avoided. At the same time, during the non-touch phase, by reducing the friction between the optical film and the display panel, the screen is prevented from being scratched by the optical film and the display panel during movement or vibration. Attached Figure Description

[0017] 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.

[0018] Figure 1 The display screen in the prior art;

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the vehicle-mounted display screen of this application;

[0020] Figure 3 This is a schematic diagram of a specific embodiment of the buffer structure of this application;

[0021] Figure 4 This is a schematic diagram of a specific embodiment of the vacuum device of this application;

[0022] Figure 5 This is a schematic diagram of the state structure of the display screen in this application when touched;

[0023] Figure 6 This is a schematic diagram of the display screen in this application when it is not touched.

[0024] 10 Display panel; 20 Backlight module; 21 Back plate; 22 Light source; 23 Diffuser plate; 24 Optical film; 211 Frame; 201 Foam spacer; 221 Luminescent paper; 231 Support frame; 25 Buffer structure; 26 Vacuum device; 251 Airbag; 252 Diffusing particles; 2511 Air port; 253 First solenoid valve; 2531 First piezoelectric valve plate; 261 Vacuum cylinder; 262 Vacuum piston; 263 Electromagnetic plate; 264 Permanent magnet plate; 265 Limiting step; 27 Second solenoid valve; 200 Sealed space. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless otherwise clearly indicated above. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0027] It should be understood that the term "and / or" used herein is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0028] It should be understood that the terms "comprising," "including," or any other variations used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] 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 every place in 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.

[0031] This application provides a vehicle-mounted display screen; please refer to the details. Figure 2 , Figure 2 This is a structural schematic diagram of an embodiment of the vehicle-mounted display screen of this application. Figure 2 As shown, the vehicle display screen includes a display panel 10 and a backlight module 20.

[0032] The display panel includes an array substrate TFT and a color filter substrate CF, a lower polarizer PO1 located on the side of the array substrate TFT away from the color filter substrate CF, and an upper polarizer PO2 located on the side of the color filter substrate CF away from the array substrate TFT.

[0033] The backlight module 20 includes a back plate 21, a light source 22, a diffuser plate 23, and an optical film 24. The light source 22 is disposed on the side of the back plate 21 facing the display panel 10, the diffuser plate 23 is disposed on the side of the light source 22 away from the back plate 21, and the optical film 24 is disposed on the side of the diffuser plate 23 facing the display panel 10.

[0034] Specifically, the backlight module 20 also includes a frame 211, which extends around the display panel 10 to support it. Specifically, a foam spacer 201 is provided on the frame 211. The foam spacer 201 can be fixedly connected to the display panel 10 and the frame 211 with adhesive to support the display panel 10 and prevent scratches. A reflective paper 221 is provided on the side of the light source 22 away from the display panel 10 to reflect light and improve light transmittance. A support frame 231 is also provided between the light source 22 and the diffuser plate 23. Multiple support frames 231 may be provided to support the diffuser plate 23, ensuring that the diffuser plate 23 and the light source 22 are spaced apart. In other embodiments, other structures of the backlight module 20 are not limited.

[0035] In this embodiment, a buffer structure 25 is provided between the diffuser plate 23 and the optical film 24. The buffer structure supports the optical film 24, allowing it to be in close contact with the display panel 10 with zero gap during touch. Specifically, the buffer structure 25 can be made rigid during touch to prevent the optical film 24 from deforming when pressed, while ensuring a tight fit between the optical film 24 and the display panel 10 during touch, thereby eliminating pressure mutagenesis.

[0036] In one specific embodiment, the backlight module 20 further includes a control device (not shown) connected to the buffer structure 25. The buffer structure 25 can switch between a soft state and a hard state under the action of the control device.

[0037] In one specific embodiment, the buffer structure 25 includes an air bladder, and the control device includes a vacuum device 26. The buffer structure 25 switches between a soft state and a hard state through the vacuum device 26. Specifically, after vacuuming, the buffer structure 25 becomes hard to support the optical film 24 and prevent pressure mura during touch pressing; in the unvacuumed (natural state) state, it is soft. At this time, the optical film 24 and the display panel 10 maintain a zero gap. However, since the buffer structure 25 is in a soft state, the frictional force between the optical film 24 and the display panel 10 is f = μF, where μ is the coefficient of friction and F is the pressure between the optical film 24 and the display panel 10. When the buffer structure 25 is in a soft state, the pressure F between the optical film 24 and the display panel 10 is small, which can effectively prevent the optical film 24 and the display panel 10 from being scratched due to friction during transportation or movement. In addition, since the optical film 24 is made of a soft material, when the buffer structure is in a soft state and does not provide support, the friction between the optical film 24 and the display panel 10 is equivalent to the friction between glass and cotton, thus preventing scratches on the glass.

[0038] For details, please refer to further information. Figure 3 , Figure 3 This is a schematic diagram of a specific embodiment of the buffer structure of this application. Figure 3 As shown, the buffer structure 25 includes an air bladder 251 disposed between the diffuser plate 23 and the optical film 24. The air bladder 251 is filled with diffusing particles 252. The air bladder 251 includes an air inlet 2511 for air intake and exhaust, which penetrates the diffuser plate 23. A first solenoid valve 253 is disposed within the air inlet 2511. The first solenoid valve 253 controls the opening and closing of the air inlet 2511 under the action of electricity, thereby controlling the diffusing particles 252 in the air bladder 251 to relax after air intake, making the air bladder 251 soft, and to tighten after air extraction, making the air bladder 251 hard. For example, a bag of rice is soft before vacuuming, and becomes hard after vacuuming. The diffusing particles 252 can be non-reactive solid particles, and the specific material is not limited here.

[0039] The first solenoid valve 253 contains a first piezoelectric ceramic plate 2531. Under the action of electricity, the first piezoelectric ceramic plate 2531 extends towards the air port 2511 (as shown by the light black dotted line in the figure) to block the air port 2511 and close it, or retracts away from the air port 2511 (as shown by the black block in the figure) to open the air port 2511 and connect it to the outside, enabling air intake or extraction. In this embodiment, the air port 2511 of the airbag 251 has an opening that is wider at the top and narrower at the bottom, so that when the first piezoelectric ceramic plate 2531 extends, it blocks the narrower side of the opening, thereby forming a seal in the airbag 251 and maintaining a vacuum state. Other shapes are also possible and are not limited here. The first piezoelectric ceramic plate 2531 can extend when energized and retract when de-energized; or retract when energized and extend when de-energized, and is not limited here.

[0040] The first solenoid valve 253 is also connected to a touch sensing signal, and conducts electricity when it senses a pressed touch signal to control the opening and closing of the air port.

[0041] For details, please refer to further information. Figure 4 , Figure 4 This is a schematic diagram of a specific embodiment of the vacuum pumping device of this application. Figure 4 As shown, the vacuum device 26 includes a vacuum cylinder 261 connected to the air port 2511 of the airbag 251 and a vacuum piston 262 disposed in the vacuum cylinder 261 and sealed to the side wall of the vacuum cylinder 261. An electromagnetic plate 263 is disposed on the bottom surface of the vacuum cylinder 261 and the vacuum piston 262 opposite to each other. A permanent magnet plate 264 is fixedly disposed on the side of the vacuum piston 262 near the electromagnetic plate 263. Positive or negative electricity on the electromagnetic plate 263 controls the permanent magnet plate 264 to move the vacuum piston 262 towards (contract) or away from (extend) the electromagnetic plate 263, thereby controlling the amount of gas in the airbag 251 connected to the vacuum cylinder 261, realizing the intake and exhaust of the airbag 251. The electromagnetic plate 263 is electrically connected; positive or negative electricity makes the electromagnetic plate 263 positively or negatively magnetic, thereby causing the permanent magnet plate 264 to move the vacuum piston 262. The suction piston 262 divides the suction cylinder 261 into an inner and an outer part. In another specific embodiment, the side of the suction piston 262 away from the bottom surface of the suction cylinder 261 (that is, the outside of the suction cylinder 261) can be directly connected to the air port 2511 of the air bag 251, so that the suction device can directly intake and exhaust air from the air bag 251.

[0042] In one specific embodiment, a sealed space 200 is directly formed between the diffuser plate 23 and the back plate 21. The sealed space 200 can be in gas communication with the air ports 2511 of the vacuum device 26 and the airbag 251. The side of the vacuum device 26's suction piston 262 away from the bottom surface of the suction cylinder 261 is connected to the sealed space 200. The air pressure in the sealed space 200 is controlled by the extension and retraction of the suction piston 262, thereby controlling the air pressure in the airbag 251 connected to the sealed space 200, thus realizing the suction and intake of air in the airbag 251, and thus realizing the state switching of the buffer structure 25. Furthermore, a limiting step 265 is provided on the side of the suction cylinder 261 away from the suction piston 262. The limiting step 265 is used to limit the movement distance of the suction piston 262 to prevent the suction piston 262 from disengaging from the suction cylinder 261.

[0043] In a further embodiment, please refer to Figure 2 The back plate 21 also has an opening, within which is a second solenoid valve 27 that controls the connection between the sealed space 200 and the outside air. The second solenoid valve 27 has the same structure as the first solenoid valve 253. The second solenoid valve 27 contains a second piezoelectric ceramic plate, which extends and retracts under electrical force to control the opening or closing of the second solenoid valve 27, thereby controlling the connection between the sealed space 200 and the outside air. In other embodiments, the connection to the outside air may be omitted to ensure the sealing of the sealed space 200; this is not a limitation here. The electromagnet is non-magnetic when not energized, and the suction piston 262 can return to its initial position under air pressure; this is also not a limitation here.

[0044] The buffer structure 25 may include one or more airbags 251. When there is one airbag, it covers the entire surface of the optical film 24, ensuring zero gap between the optical film 24 and the display panel 10 during touch. When there are multiple airbags, each airbag 251 has an air vent 2511, and the air vents 2511 of the multiple airbags 251 are connected to a vacuum device 26 to control the state (including soft and hard states) of the multiple airbags 251. The multiple airbags 251 are closely arranged and evenly distributed below the optical film 24 to precisely control the airbag 251 at the touch point. When the point is pressed, the airbag 251 at that point is evacuated to avoid pressure slack at the touch point.

[0045] This application also provides two states of the display panel; please refer to [link / reference]. Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the state structure of the display screen in this application when touched. Figure 6 This is a schematic diagram of the display screen's state structure when it is not touched. Figure 5As shown, when a touch occurs, the buffer structure is evacuated. During evacuation, the second piezoelectric ceramic plate extends, and the second solenoid valve 27 closes, forming a sealed space 200 between the diffuser plate 23 and the back plate 21. The first piezoelectric ceramic plate 2531 at the touch point contracts, the first solenoid valve 253 opens at this point, and the first solenoid valves 253 at other points remain closed. The electromagnetic plate 263 of the vacuum device 26 is energized, attracting the permanent magnet plate 264 to move to the left, drawing air into the sealed space 200, thereby evacuating the airbag 251 at the touch point and making the airbag 251 in a rigid state.

[0046] like Figure 6 As shown, when the touch is stopped, air is introduced into the buffer structure to break the vacuum. During the vacuum breaking process, the second piezoelectric ceramic plate contracts, the second solenoid valve 27 opens, and the vacuum bladder 251 at the vacuum point breaks the vacuum and returns to a soft state. At this time, the electromagnetic plate 263 is reverse-energized, repelling the permanent magnet plate 264 to move to the right, and the permanent magnet plate 264 returns to its original position. At the point where the touch disappeared, the first piezoelectric ceramic plate 2531 extends, and the first solenoid valve 253 closes.

[0047] In other embodiments, the sealed space can remain sealed, allowing the permanent magnet to return to its original position and breaking the vacuum state of the airbag. The first solenoid valve can also be closed after evacuation to maintain the vacuum state; this is not limited to this embodiment.

[0048] In another specific embodiment, the buffer structure 25 can also be a sponge, and the control device further includes a support frame 231 that can control the raising and lowering of the diffuser plate 23. The support frame 231 is disposed between the diffuser plate 23 and the back plate 21. The sponge becomes hard after compression and soft when uncompressed. By compressing the sponge, the supporting force of the optical film 24 is increased, thereby making the optical film 24 fit tightly against the display panel 10, thus avoiding pressure on the screen. Specifically, before touch, the support frame 231 extends, causing the diffuser plate 23 to move closer to the display panel 10 to compress the sponge and increase the pressure between the optical film 24 and the display panel 10. After touch, the support frame 231 retracts, causing the diffuser plate 23 to move away from the display panel 10, and the sponge rebounds to reduce the supporting force of the sponge on the optical film 24, that is, to reduce the pressure between the optical film 24 and the display panel 10, thereby preventing the optical film 24 and the display panel 10 from being scratched due to vibration.

[0049] In other embodiments, the support frame can also be used in conjunction with the airbag's cushioning structure. In one embodiment, when the airbag is inflated and the vacuum is broken, the diffuser plate is controlled to move away from the display panel; when the airbag is deflated, the diffuser plate is controlled to move closer to the display panel. This is not limited to any particular embodiment. In the cushioning structure including the airbag, the support frame can also be fixed in place. This is not limited to any particular embodiment.

[0050] In other embodiments, the support frame 231 can also be used alone, that is, the diffuser plate 23 and the optical film 24 are in direct contact. When no touch is involved, the diffuser plate 23 is moved away from the display panel 10 by the support frame 231 so that the optical film 24 and the display panel 10 are spaced apart. This can also avoid friction and scratches between the display panel 10 and the optical film 24 during movement. When touch is involved, the diffuser plate 23 is moved closer to the display panel 10 to achieve zero-gap contact between the optical film 24 and the display panel 10.

[0051] This application also provides a vehicle-mounted display screen, which includes the display screen described in any of the above embodiments. That is, the above display screen is applied to a moving vehicle, enabling both touch display and preventing the lower polarizer of the display panel from being scratched during vehicle vibration. In other embodiments, the above display screen can also be applied to other mobile display devices, and is not limited thereto.

[0052] The beneficial effects of this application are: by using a buffer structure, the optical film and the display panel are positioned with zero gap during the touch phase to avoid pressing the screen; and during the non-touch phase, the friction between the optical film and the display panel is reduced to prevent screen scratches caused by vibration. In other embodiments, the optical film can also be spaced apart from the display panel during the non-touch phase to prevent screen scratches caused by vibration.

[0053] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display screen, the display screen comprising a display panel and a backlight module, characterized in that, The backlight module includes: Back panel; A light source is disposed on the side of the back panel facing the display panel; A diffuser plate is disposed on the side of the light source away from the back plate and is spaced apart from the light source; An optical film is disposed on the side of the diffuser plate away from the back plate; A buffer structure is also provided between the diffuser plate and the optical film. The buffer structure is used to support the optical film and the display panel to be set with zero gap during touch. The buffer structure includes an air bladder disposed between the diffuser plate and the optical film, and diffused particles filled in the air bladder. The air bladder includes an air inlet for air inlet and outlet, the air inlet penetrating the diffuser plate. A first solenoid valve is disposed in the air inlet. The first solenoid valve is used to control the opening and closing of the air inlet, thereby controlling the air bladder to become soft after air inlet and hard after air de-inlet.

2. The display screen according to claim 1, characterized in that, The backlight module also includes a control device connected to the buffer structure, which, under the action of the control device, switches between a soft state and a hard state or vice versa.

3. The display screen according to claim 1, characterized in that, The first solenoid valve is provided with a first piezoelectric ceramic plate. Under the action of electricity, the first piezoelectric ceramic plate extends towards the air port to block the air port and close the air port, or retracts away from the air port to open the air port.

4. The display screen according to claim 2, characterized in that, The control device includes a vacuuming device that communicates with the air inlet of the airbag, and the vacuuming device includes an air extraction cylinder and an air extraction piston that are sealed to the air extraction cylinder. An electromagnetic plate is provided on the bottom surface of the air extraction cylinder opposite to the air extraction piston. A permanent magnet is fixedly provided on the side of the air extraction piston near the electromagnetic plate. The positive or negative electricity on the electromagnetic plate controls the permanent magnet to drive the air extraction piston to extend and retract within the air extraction cylinder, thereby controlling the amount of gas entering and leaving the airbag and realizing the air intake and exhaust of the airbag.

5. The display screen according to claim 4, characterized in that, A sealed space is also formed between the diffuser plate and the back plate. The side of the vacuuming device's suction piston away from the suction cylinder is connected to the sealed space so that the air pressure in the sealed space can be controlled by the extension and retraction of the suction piston, thereby controlling the air pressure in the airbag connected to the sealed space, and realizing the suction and intake of the airbag.

6. The display screen according to claim 5, characterized in that, The back plate is provided with a second solenoid valve that connects the sealed space with the outside air. The second solenoid valve is provided with a second piezoelectric ceramic plate. The second piezoelectric ceramic plate extends or contracts under the action of electricity to control the opening or closing of the second solenoid valve, thereby controlling the connection between the sealed space and the outside air.

7. The display screen according to claim 4, characterized in that, The buffer structure includes multiple airbags, each airbag having an air port, and each air port having a first solenoid valve. The air ports of the multiple airbags are connected to a vacuum pumping device.

8. The display screen according to claim 2, characterized in that, The control device also includes a liftable support frame disposed between the diffuser plate and the back plate. The expansion and contraction of the support frame controls the diffuser plate to move closer to the display panel when touched, so that the optical film and the display panel are set with zero gap when touched.

9. A vehicle-mounted display screen, characterized in that, The in-vehicle display screen includes the display screen according to any one of claims 1 to 8, and the in-vehicle display screen is used in a car.

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