Central control display screen

Abstract

The utility model relates to the technical field of automotive electronics, and discloses a central control display screen. According to the utility model, the central control display screen comprises a panel support which is provided with an accommodating groove and is used for being fixedly connected with an automobile center console; the driving plate is located in the containing groove and fixed to the panel support; the backlight module is located on the side, away from the panel support, of the driving plate, the backlight module is contained in the containing groove and fixed to the panel support, the panel support is used for supporting the backlight module, and the driving plate is used for controlling the backlight module; the screen assembly is fixed to the side, away from the panel support, of the backlight module. Through the arrangement, the structure of the central control display screen can be simplified, the weight, the assembling difficulty and the manufacturing cost of the central control display screen are reduced, and the heat dissipation performance of the central control display screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electronics, in particular to a central control display screen. Background Art

[0002] At present, assisted driving, intelligent driving and car multimedia all put forward more and higher requirements on the performance and design of the central control display device of the car to meet the needs of users in various scenarios. Especially in new energy vehicles, reducing the weight of the vehicle body and improving the heat dissipation efficiency are of great significance to increasing the cruising range of new energy vehicles.

[0003] However, the existing central control display device has a complex structural design, consisting of multiple assembly parts. For example, the back panel, cover and mounting bracket of the backlight module of the display screen are designed separately, requiring multiple different molds to manufacture different assembly parts, which are heavy, difficult to assemble and costly to manufacture. At the same time, due to the separate design, there is an air layer between the back panel and the cover, resulting in low heat dissipation performance. Utility Model Content

[0004] The purpose of the utility model is to provide a central control display screen, simplify the structure of the central control display screen, reduce the weight, assembly difficulty and manufacturing cost of the central control display screen, and improve its heat dissipation performance.

[0005] In order to solve the above technical problems, the embodiment of the utility model provides a central control display screen, including:

[0006] A panel bracket having a receiving groove, the panel bracket is used to be fixedly connected to the car center console; a drive board is located in the receiving groove and fixed to the panel bracket; a backlight module is located on the side of the drive board away from the panel bracket, the backlight module is received in the receiving groove and fixed to the panel bracket, the panel bracket is used to support the backlight module, the drive board is electrically connected to the backlight module, and is used to control the backlight module; a screen assembly is fixed to the side of the backlight module away from the panel bracket.

[0007] Optionally, a flattening layer is further included, and the panel bracket includes a partition arranged around the inner wall of the accommodating groove, the partition is arranged opposite to the bottom wall of the accommodating groove, and divides the accommodating groove into a first accommodating space and a second accommodating space which are interconnected; the first accommodating space is provided between the partition and the bottom wall, and the second accommodating space is provided on the side of the partition away from the bottom wall; the driving board is located in the first accommodating space, and the backlight module is located in the second accommodating space.

[0008] Optionally, a planarization layer is also included, and a portion of the bottom wall of the accommodating groove is recessed in a direction away from the driving plate to form a first accommodating space, and the side walls of the accommodating groove and the remaining portion of the bottom wall form a second accommodating space connected to the first accommodating space, and the planarization layer is arranged on the bottom wall to close the first accommodating space.

[0009] Optionally, the planarization layer includes a plastic plate and an adhesive layer, the adhesive layer is arranged on the bottom wall to close the first accommodating space; the plastic plate is fixed to the bottom wall via the adhesive layer.

[0010] Optionally, the orthographic projection of the plastic plate on the bottom wall completely covers the bottom wall.

[0011] Optionally, the backlight module includes a reflective film and a light-emitting diode, the reflective film is arranged on the side of the driving plate away from the bottom wall of the accommodating groove, the light-emitting diode is arranged on the side of the reflective film away from the bottom wall, and the reflective film is used to reflect the light emitted by the light-emitting diode.

[0012] Optionally, thermal conductive adhesive is further included, the light emitting diode is a light bar and is arranged along the inner wall of the receiving groove, and the light bar is fixed to the inner wall of the receiving groove via the thermal conductive adhesive.

[0013] Optionally, the backlight module further includes a first brightness enhancement film and a second brightness enhancement film, wherein the first brightness enhancement film is disposed on a side of the light emitting diode away from the bottom wall, and the second brightness enhancement film is disposed on a side of the first brightness enhancement film away from the bottom wall.

[0014] Optionally, a bidirectional electronic filter membrane is further included, and the bidirectional electronic filter membrane is arranged on the side of the reflective membrane away from the bottom wall.

[0015] Optionally, the screen assembly includes a matte screen.

[0016] Compared with the prior art, the central control display screen of the utility model is provided with a receiving groove on the panel bracket for fixing the central control panel of the car, and the driving board, backlight module and screen assembly are sequentially arranged on the panel bracket, that is, the back plate of the backlight module, the cover and the mounting bracket are integrated into a panel bracket, which can reduce the number of assembly parts of the central control display screen, simplify its structure, and reduce the weight, assembly difficulty and manufacturing cost of the central control display screen. At the same time, compared with the existing central control display screen, the air layer between the back plate and the cover is reduced, thereby improving the heat dissipation performance of the central control display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0018] Figure 1 This is a schematic diagram of the structure explosion of the central control display screen of an embodiment of the utility model;

[0019] Figure 2 It is a front view schematic diagram of a panel bracket of a central control display screen according to an embodiment of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of another panel bracket of the central control display screen in an embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure explosion of the backlight module of the central control display screen according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0023] In the embodiments of the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0025] In addition, the terms "installed", "set", "provided with", "opened", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0027] An embodiment of the utility model relates to a central control display screen 100, comprising: a panel bracket 110, having a receiving groove 111, wherein the panel bracket 110 is used to be fixedly connected to a central console of a car. A driving board 120, located in the receiving groove 111, and fixed to the panel bracket 110. A backlight module 130, located on a side of the driving board 120 away from the panel bracket 110, wherein the backlight module 130 is received in the receiving groove 111 and fixed to the panel bracket 110, wherein the panel bracket 110 is used to support the backlight module 130, wherein the driving board 120 is electrically connected to the backlight module 130, and is used to control the backlight module 130. A screen assembly 140, fixed to a side of the backlight module 130 away from the panel bracket 110.

[0028] Compared with the prior art, the central control display screen 100 of this embodiment is provided with a receiving groove 111 on the panel bracket 110 for fixing the central console of the car, and the driving board 120, the backlight module 130 and the screen assembly 140 are sequentially arranged on the panel bracket 110, that is, the back plate, the concealing back cover and the mounting bracket of the backlight module 130 are integrally designed as the panel bracket 110, which can reduce the number of assembly parts of the central control display screen 100, simplify its structure, and reduce the weight, assembly difficulty and manufacturing cost of the central control display screen 100. At the same time, compared with the existing central control display screen, the air layer between the back plate and the concealing back cover is reduced, thereby improving the heat dissipation performance of the central control display screen 100.

[0029] In this embodiment, a conventional square central control display screen is used as an example for explanation. It is understandable that in some cases, the central control display screen 100 can be designed as a special-shaped screen as needed, wherein the design of the panel bracket 110, the backlight module 130, the screen assembly 140, etc. can all be adaptively adjusted according to actual conditions under the guidance of the present utility model.

[0030] The panel bracket 110 mainly includes a groove structure for accommodating the drive board 120, the backlight module 130 and the screen assembly 140, and a support structure fixedly connected to the groove structure and used for fixing the car center console. The groove structure is square as a whole, with a square bottom wall, and a side wall connected to the bottom wall, extending along the edge of the bottom wall and surrounding a square outline. Among them, the inner angle and the outer angle of the side wall can be either a right angle or a rounded angle. Preferably, the inner angle and the outer angle of the side wall are both set to rounded angles, which can make the appearance of the central control display screen 100 more rounded and beautiful. In addition, when the inner angle of the side wall is set to a rounded angle, the outer edge of the backlight module 130 and the screen assembly 140 is also set to a rounded angle matching the inner angle of the side wall, which can reduce the stress concentration of the backlight module 130 and the screen assembly 140, and reduce the risk of damage to the backlight module 130 and the screen assembly 140.

[0031] In some examples, the panel support 110 includes a partition 112 arranged around the inner wall of the accommodating groove 111, the partition 112 is arranged opposite to the bottom wall of the accommodating groove 111, and divides the accommodating groove 111 into a first accommodating space 111a and a second accommodating space 111b that are interconnected. There is a first accommodating space 111a between the partition 112 and the bottom wall, and there is a second accommodating space 112b on the side of the partition 112 away from the bottom wall. The driving board 120 is located in the first accommodating space 111a, and the backlight module 130 is located in the second accommodating space 111b. In other words, the groove-shaped structure of the panel support 110 adopts a double-layer design, and the side wall of the groove-shaped structure has an inner side wall and an outer side wall that are opposite to each other. The partition 112 is arranged on the inner side wall and is arranged opposite to the bottom wall, that is, arranged in parallel and spaced apart, so that the internal space of the groove-shaped structure is divided into the first accommodating space 111a and the second accommodating space 111b by the partition 112. When started, the driving board 120 is disposed in the first accommodation space 111 a , and the backlight module 130 and the screen assembly 140 are disposed in the second accommodation space 111 b .

[0032] In some examples, the central control display screen 100 further includes a flattening layer 150, the inner edge of the partition 112 forms a through hole, and the flattening layer 150 is disposed on the side of the partition 112 away from the bottom wall to cover the through hole. Specifically, the partition 112 extends circumferentially along the inner wall of the groove-like structure to form an annular partition 112 and forms a through hole, through which the drive plate 120 is placed in the first accommodation space 111a and fixed to the bottom wall by screws, etc. The flattening layer 150 covers the through hole to ensure the closure of the first accommodation space 111a and achieve good waterproof and dustproof performance. In addition, the flattening layer 150 can provide a flat surface, and the backlight module 130 is disposed on the surface, and the screen assembly 140 is disposed on the backlight module 130, which can ensure the flatness of the film material in the central control display screen 100, prevent the film material from being deformed, and avoid the occurrence of film arch white spots on the central control display screen 100.

[0033] In some examples, the planarization layer 150 includes a plastic plate 151 and an adhesive layer (not shown in the figure), the adhesive layer is arranged on the side of the partition 112 away from the bottom wall to cover the through hole, and the plastic plate 151 is fixed to the side of the partition 112 away from the bottom wall via the adhesive layer. The use of the plastic plate 151 can not only provide a flat surface, but also avoid excessive increase in the weight of the central control display screen 100. In some specific embodiments, the adhesive layer uses a polyester polymer adhesive layer, such as mylar glue, which has good heat resistance, surface flatness, transparency and mechanical flexibility, which can avoid the occurrence of bonding failure due to the heating of the central control display screen 100 after long-term use, and will not affect the surface flatness of the plastic plate 151.

[0034] Preferably, the orthographic projection of the plastic plate 151 on the bottom wall completely covers the orthographic projection of the partition 112 on the bottom wall. In other words, the plastic plate 151 completely covers the partition 112, ensuring that the entire setting surface of the backlight module 130 is a flat surface.

[0035] In some other examples, a portion of the bottom wall of the groove-shaped structure forming the accommodating groove 111 is recessed in a direction away from the driving board 120, thereby forming a first accommodating space 111a, and the side wall of the accommodating groove 111 and the remaining bottom wall without recessing form a second accommodating space 111b, and the first accommodating space 111a is connected to the second accommodating space 111b. The planarization layer 150 is provided on the bottom wall to close the first accommodating space 111a, the driving board 120 is located in the first accommodating space 111a, and the backlight module is located in the second accommodating space 111b.

[0036] The adhesive layer is disposed on the bottom wall to seal the first accommodation space 111a, isolating the first accommodation space 111a from the second accommodation space 111b, and the driving board 120 is located in the first accommodation space 111a to prevent corrosion by water vapor, dust accumulation, etc. The plastic plate 151 is fixed to the non-depressed portion of the bottom wall through the adhesive layer, and the plastic plate 151 covers the entire bottom wall.

[0037] It is understandable that the adhesive layer may also be annular, and when the central control display screen 100 includes a partition 112, the adhesive layer matches the contour of the through hole surrounded by the partition 112, and the adhesive layer is bonded to the edge of the through hole, and is bonded to the plastic flat plate 151. When the first accommodating space 111a is formed by a bottom wall depression of a groove structure, the adhesive layer matches the contour formed by the bottom wall at the depression, and is bonded to the bottom wall to form the depression opening edge of the depression, and the plastic flat plate 151 is fixed to the bottom wall via the adhesive layer.

[0038] In some examples, the backlight module 130 includes a reflective film 131 and a light emitting diode 132. The reflective film 131 is disposed on the side of the driving board 120 away from the bottom wall of the accommodating groove 111, and the light emitting diode 132 is disposed on the side of the reflective film 131 away from the bottom wall. The reflective film 131 is used to reflect the light emitted by the light emitting diode 132. It can be understood that the light emitting diode 132 is electrically connected to the driving board 120, the reflective film 131 is disposed on the side of the plastic flat plate 151 away from the bottom wall, and the light emitting diode 132 is disposed on the side of the plastic flat plate 151 away from the bottom wall. In this way, when the central control display screen 100 emits light for display, the reflective film 131 can reflect all or most of the light from the light emitting diode 132 to the screen assembly 140, which can reduce the light leakage of the central control display screen 100 and ensure that the central control display screen 100 has sufficient brightness.

[0039] In some examples, the central control display screen 100 further includes thermal conductive adhesive (not shown in the figure), the light emitting diode 132 is a light bar and is extended along the inner wall of the accommodating groove 111, and the light bar is fixed to the inner wall of the accommodating groove 111 by the thermal conductive adhesive. The light bar is fixed by the thermal conductive adhesive, and the heat dissipation of the light bar can be better. It can be understood that the light bar needs to be electrically connected to the driving board 120, and a hole can be opened on the plastic plate 151, and then a wire is led out from the driving board 120 to electrically connect the light bar, and the opening of the plastic plate 151 is sealed by an adhesive layer.

[0040] In some examples, the backlight module 130 also includes a light guide plate 133 disposed on the side of the light emitting diode 132 away from the bottom wall. The light guide plate 133 is used to guide the light emitted by the light emitting diode 132 toward the screen assembly 140 and the light reflected by the reflective film 131 toward the screen assembly 140 to the screen assembly. After passing through the light guide plate 133, these lights become parallel light or nearly parallel light, which can reduce light leakage of the central control display screen 100.

[0041] In some examples, the backlight module 130 also includes a first diffusion film 134 disposed on the side of the light guide plate 133 away from the bottom wall. After the light emitted through the light guide plate 133 enters the first diffusion film 134, it is diffusely reflected inside the first diffusion film 134, so that the light distribution is balanced, thereby making the display effect of the central control display screen 100 uniform and avoiding uneven brightness.

[0042] In some examples, the backlight module 130 also includes a first light-enhancing film 135 (anti-reflection film) disposed on the side of the first diffusion film 134 away from the bottom wall. In this way, the light diffused by the first diffusion film 134 can be significantly enhanced in intensity after passing through the first light-enhancing film 135, thereby ensuring that the central control display screen 100 has sufficient brightness when working.

[0043] In some examples, the backlight module 130 may further include a second brightness enhancement film 136 disposed on a side of the first brightness enhancement film 135 away from the bottom wall, thereby further improving the luminous brightness of the central control display screen 100. It is understandable that the specific number of brightness enhancement films can be set according to actual needs, and no further explanation is given here.

[0044] In some examples, the backlight module 130 also includes a double brightness enhancing film (DBEF) 137, which is disposed on the side of the reflective film 131 away from the bottom wall. It can be understood that the double brightness enhancing film 137 is disposed on the side of the second brightness enhancing film 136 away from the bottom wall. DBEF is a high-performance, high-transparency film, mainly composed of silicone material and special microspheres, and has a two-way electronic filtering effect. The film can greatly improve the brightness and contrast of the central control display screen 100, and enhance the color saturation, thereby making the image more vivid and bright.

[0045] In some other examples, the bidirectional electronic filter film 137 can also be replaced by a diffusion film, which can make the display of the central control display screen 100 more uniform.

[0046] In some examples, the backlight module 130 also includes a rubber frame 138 disposed on a side of the two-way electronic filter membrane 137 away from the bottom wall. The rubber frame 138 is disposed around the edge of the two-way electronic filter membrane 137 and is used to bond the screen assembly 140 to the two-way electronic filter membrane 137.

[0047] In some examples, the screen assembly 140 includes an LCM (LCD Module) logic board 141, that is, a driving circuit module of an LCD display module, a liquid crystal module, etc., which is arranged on the side of the bidirectional electronic filter membrane 137 away from the bottom wall and is located in the area surrounded by the rubber frame 138. The LCM logic board 141 is used to drive the pixels of the screen, or drive the liquid crystal on the LCD screen, so that the central control display screen 100 can display normally.

[0048] In some examples, the screen assembly 140 further includes a matte screen 142 disposed on a side of the LCM logic board 141 away from the bottom wall. The matte screen 142 is a liquid crystal display screen. Compared with a mirror screen, it does not produce reflections when the light is strong. In addition, the matte screen 142 is not easily scratched, and the content displayed on the screen can still be clearly seen under strong light. Moreover, under the same length of use, it is less likely to cause eye fatigue than a mirror screen, which can improve the safety of driving a car to a certain extent.

[0049] In some examples, the screen assembly 140 also includes a glass cover plate 143 and an optical adhesive (OCA) layer 144, wherein the glass cover plate 143 is located on the side of the matte screen 142 away from the bottom wall, and is bonded to the matte screen 142 through the optical adhesive layer 144. The glass cover plate 143 can protect the matte screen 142 and prevent the matte screen 142 from being scratched.

[0050] In some other examples, the glass cover 143 can be replaced by a touch panel so that the central control display screen 100 supports touch mode.

[0051] Since the panel bracket 110 of the utility model adopts a double-layer space design, it is functionally equivalent to the integrated design of the back plate, the ugly back cover and the mounting bracket of the backlight module in the traditional central control display device, thereby reducing a layer of structure, simplifying the structure of the central control display screen 100, reducing the weight, and reducing the thickness of the central control display screen 100, thereby eliminating the air layer between the back plate and the mounting bracket, and improving the heat dissipation performance of the central control display screen 100. In a specific example, the weight can be reduced by more than 400g, the thickness of the central control display screen 100 is reduced by 1mm to 2mm, and the frame of the central control display screen 100 is simultaneously reduced by 1mm to 2mm. In addition, since the panel bracket 110 is an integrated design, the molds and materials required for manufacturing the central control display screen 100 can be reduced. Compared with the central control display device of the same specification, the manufacturing cost of the central control display screen 100 provided by the utility model is reduced by 5% to 10%.

[0052] The central control display screen provided by the implementation method of the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above implementation method is only used to help understand the idea of ​​the utility model. There will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A central control display screen, characterized in that: include: A panel bracket having a receiving groove, wherein the panel bracket is used for fixedly connecting to a vehicle center console; A driving plate, located in the receiving groove and fixed to the panel bracket; A backlight module is located on a side of the driving board away from the panel bracket, the backlight module is accommodated in the accommodating groove and fixed to the panel bracket, the panel bracket is used to support the backlight module, and the driving board is electrically connected to the backlight module and is used to control the backlight module; The screen assembly is fixed to a side of the backlight module away from the panel bracket.

2. The central control display screen according to claim 1, characterized in that: The panel bracket further comprises a planarization layer, wherein the panel bracket comprises a partition plate arranged around the inner wall of the accommodating groove, the partition plate is arranged opposite to the bottom wall of the accommodating groove, and divides the accommodating groove into a first accommodating space and a second accommodating space which are interconnected; the first accommodating space is provided between the partition plate and the bottom wall, and the second accommodating space is provided on a side of the partition plate away from the bottom wall; The driving board is located in the first accommodating space, and the backlight module is located in the second accommodating space.

3. The central control display screen according to claim 1, characterized in that: It also includes a planarization layer, a portion of the bottom wall of the accommodating groove is recessed in a direction away from the driving board to form a first accommodating space, a side wall of the accommodating groove and the remaining portion of the bottom wall form a second accommodating space connected to the first accommodating space, and the planarization layer is provided on the bottom wall to close the first accommodating space; The driving board is located in the first accommodating space, and the backlight module is located in the second accommodating space.

4. The central control display screen according to claim 3, characterized in that: The planarization layer includes a plastic plate and an adhesive layer, wherein the adhesive layer is arranged on the bottom wall to seal the first accommodating space; and the plastic plate is fixed to the bottom wall via the adhesive layer.

5. The central control display screen according to claim 4, characterized in that: The orthographic projection of the plastic plate on the bottom wall completely covers the bottom wall.

6. The central control display screen according to claim 1, characterized in that: The backlight module includes a reflective film and a light-emitting diode. The reflective film is arranged on the side of the driving plate away from the bottom wall of the accommodating groove, and the light-emitting diode is arranged on the side of the reflective film away from the bottom wall. The reflective film is used to reflect the light emitted by the light-emitting diode.

7. The central control display screen according to claim 6, characterized in that: It also includes heat-conducting glue, the light-emitting diode is a light bar, and is arranged along the inner wall of the accommodating groove, and the light bar is fixed to the inner wall of the accommodating groove via the heat-conducting glue.

8. The central control display screen according to claim 6, characterized in that: The backlight module further includes a first brightness enhancement film and a second brightness enhancement film. The first brightness enhancement film is arranged on a side of the light emitting diode away from the bottom wall, and the second brightness enhancement film is arranged on a side of the first brightness enhancement film away from the bottom wall.

9. The central control display screen according to any one of claims 6 to 8, characterized in that: It also includes a bidirectional electronic filter membrane, which is arranged on a side of the reflective membrane away from the bottom wall.

10. The central control display screen according to claim 1, characterized in that: The screen assembly includes a matte screen.

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