Combined vehicle-mounted display module

Abstract

The utility model provides a combined type vehicle-mounted display module which comprises a segment code display screen and a thin film transistor liquid crystal display assembly arranged on one side of the segment code display screen, an anti-explosion screen is arranged on the other side of the segment code display screen, and the segment code display screen comprises a liquid crystal display area arranged in the middle and segment code display areas on the two sides. The thin film transistor liquid crystal display assembly comprises an upper polaroid, a liquid crystal layer and a lower polaroid which are sequentially arranged from top to bottom, a backlight source is arranged on one side of the thin film transistor liquid crystal display assembly and comprises a backlight source body and a rubber frame, and the thin film transistor liquid crystal display assembly is arranged on the side, away from the backlight source body, of the rubber frame. The backlight source further comprises a peep-proof film and bottom plate gold, and the thin film transistor liquid crystal display assembly is connected with the segment code display screen in an adhesive mode. According to the combined type vehicle-mounted display module, the segment code display screen is divided into the segment code display area and the liquid crystal display area, so that the combined type vehicle-mounted display module has the function of rich and changeable pictures and is low in cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive display technology, and in particular to a combined vehicle display module. Background Technology

[0002] TFT-LCD (Thin Film Transistor Liquid Crystal Display, a widely used display technology combining Thin Film Transistor (TFT) and Liquid Crystal Display (LCD) technologies) is highly favored by users for its superior performance (e.g., rich colors). However, vehicle instrument panels often only need to display driving safety information such as speed, RPM, and dial patterns, without requiring constant switching of colorful images; frequently used images (e.g., dial patterns) are quite fixed. Using a TFT-LCD full LCD screen for vehicle instrument panels would be a waste of resources. Furthermore, currently used segmented LCD screens can only display pure black and pure white, offering limited content and color variety, making it difficult to meet the needs of a broad consumer base.

[0003] Therefore, car manufacturers hope to create a car dashboard that meets consumer needs and is also low-cost, in order to solve the technical problems of high cost of using TFT-LCD full LCD displays for in-vehicle displays and the inability of segment LCD displays to meet the display requirements of consumers. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a combined vehicle display module, which aims to solve the technical problems of high cost of using TFT-LCD full liquid crystal display screens for vehicle display instruments and the inability of segment LCD screens to meet the display requirements of consumers.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a combined vehicle-mounted display module, including a segment display screen and a thin-film transistor liquid crystal display (TFT-LCD) assembly disposed on one side of the segment display screen. An explosion-proof screen is provided on the side of the segment display screen away from the TFT-LCD assembly, the explosion-proof screen being the same size as the segment display screen. The segment display screen includes a liquid crystal display area disposed in the center and segment display areas located on both sides of the liquid crystal display area. The TFT-LCD assembly is located directly below the liquid crystal display area. The TFT-LCD assembly includes an upper polarizer, a liquid crystal layer, and a lower polarizer arranged sequentially from top to bottom. A backlight is provided on the side of the TFT-LCD assembly away from the segment display screen. The backlight includes a backlight body and a frame for fixing the backlight body. The TFT-LCD assembly is disposed on the side of the frame away from the backlight body. The backlight also includes a privacy film fixed to the lower end of the frame and a base plate disposed on the outer side for fixing the frame. The TFT-LCD assembly is adhesively connected to the segment display screen.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows: By dividing the segment display screen into three display areas, the two side segment display areas display fixed prompt information such as vehicle speed, RPM, and dial diagram, while the middle segment display screen is a liquid crystal display area. It works in conjunction with a thin-film transistor liquid crystal display component to achieve rich and varied images, thereby meeting the customer's liquid crystal display needs. Combining the two display forms not only meets the customer's needs for instrument display, but also reduces the investment cost of the instrument display screen. Furthermore, fixing the liquid crystal display component in a grooved rubber frame, through the sealed connection between the rubber frame and the segment display screen, not only prevents dust from entering the interior of the liquid crystal display component, but also prevents side light leakage and provides a certain degree of shock absorption for the liquid crystal display.

[0007] According to one aspect of the above technical solution, the frame is provided with a groove for placing the thin-film transistor liquid crystal display assembly on the side near the thin-film transistor liquid crystal display assembly, and a light-transmitting groove for the backlight body to transmit light is provided in the middle of the groove.

[0008] According to one aspect of the above technical solution, foam adhesive is provided between the frame and the segment display screen.

[0009] According to one aspect of the above technical solution, the thin-film transistor liquid crystal display assembly is provided with edge-sealing adhesive tape.

[0010] According to one aspect of the above technical solution, a double-sided transparent tape is provided between the thin-film transistor liquid crystal display assembly and the segment display screen.

[0011] According to one aspect of the above technical solution, a liquid optical transparent adhesive is provided between the thin-film transistor liquid crystal display assembly and the segment display screen.

[0012] According to one aspect of the above technical solution, both the segment display screen and the liquid crystal layer are electrically connected to the vehicle circuit board.

[0013] According to one aspect of the above technical solution, the backlight also includes a lower light enhancement film, a diffusion film, a light guide plate, and a reflective layer, which are disposed sequentially from top to bottom between the privacy film and the base plate. Attached Figure Description

[0014] Figure 1 This is an exploded view of the combined vehicle display module in the first embodiment of this utility model;

[0015] Figure 2 This is an exploded view of the backlight in the first embodiment of this utility model;

[0016] Figure 3 This is an exploded view of the combined vehicle display module in the second embodiment of this utility model;

[0017] Key component symbols: 1-Segment display screen, 11-Segment display area, 12-Liquid crystal display area, 2-Thin film transistor liquid crystal display assembly, 21-Upper polarizer, 22-Liquid crystal layer, 23-Lower polarizer, 3-Backlight, 31-Frame, 311-Groove, 312-Light transmission groove, 32-Backlight body, 321-Lower brightness enhancement film, 322-Diffusive film, 323-Light guide plate, 324-Reflective layer, 33-Privacy protection film, 34-Base plate metal, 4-Double-sided transparent tape, 5-Edge binding tape, 6-Liquid optical transparent adhesive, 7-Foam adhesive, 8-Explosion-proof screen;

[0018] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0020] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Please see Figure 1 and Figure 2 An embodiment of this utility model provides a combined vehicle display module, including a segment display screen 1. The shape of the segment display screen 1 can be freely customized according to the installation space of the vehicle or according to customer requirements. The segment display screen 1 is divided into three display areas, including two segment display areas 11 and one liquid crystal display area 12. The liquid crystal display area 12 has a rectangular structure and is located in the middle, while the two segment display areas 11 are located on both sides of the short side of the rectangle, and the length of the segment display area 11 is the same as the length of the short side of the liquid crystal display area 12. An explosion-proof screen 8, the same size as the segment display screen, is provided on the upper side of the segment display screen 1 to protect it from direct damage by external stress. A thin-film transistor liquid crystal display (TFT-LCD) assembly 2 is located on the lower side of the segment display screen 1, at the position of the liquid crystal display area 12. The TFT-LCD assembly 2, from top to bottom, consists of an upper polarizer 21, a liquid crystal layer 22, and a lower polarizer 23. A backlight 3 is located at one end of the lower polarizer 23. The backlight 3 includes a backlight body 32 and a frame 31 for fixing the backlight 3. The thin-film transistor liquid crystal display assembly 2 is located on the side of the frame 31 away from the backlight body 32. The backlight 3 also includes a privacy film 33 fixed to the lower end of the frame 31 and a base plate 34 disposed on the outside for fixing the frame 31. By setting the privacy film 33, it can achieve the effect of preventing up and down / left and right peeping (visible within a specific angle), reducing the interference of the instrument display on the driver's viewing angle while driving. By fixing the base plate 34 to the frame 31, the backlight body 32 is fixed. In addition, the metal base plate 34 has a better heat dissipation effect.

[0023] Furthermore, the backlight 3 also includes a lower light enhancement 321, a diffusion film 322, a light guide plate 323, and a reflective layer 324, which are arranged from top to bottom between the privacy film 33 and the base plate 34.

[0024] In this embodiment, the thin-film transistor liquid crystal display assembly 2 is provided with edge-sealing tape 5. The thin-film transistor liquid crystal display assembly 2 is formed into a whole by using the edge-sealing tape 5 and placed in the frame 31 for fixation. Specifically, the thin-film transistor liquid crystal display assembly 2 is provided with edge-sealing tape 5 on its periphery.

[0025] Please see Figure 2 The frame 31 is hollowed out in the middle, and the upper and lower sides form a stepped structure facing the inward groove 311. Specifically, the frame 31 has a groove 311 for placing the thin-film transistor liquid crystal display assembly 2 on the side near the assembly. The groove 311 has a light-transmitting groove 312 in the middle for the backlight body 32 to transmit light. It should be noted that when the thin-film transistor liquid crystal display assembly 2 is placed in the groove 311, the upper polarizer 21 is flush with one side of the frame 31, which facilitates the adhesive bonding between the thin-film transistor liquid crystal display assembly 2 and the segment display screen 1. The frame 31 can also be connected to the segment display screen 1 by foam adhesive 7. Specifically, foam adhesive 7 is provided between the frame 31 and the segment display screen 1. Connecting the frame 31 to the segment display screen 11 by foam adhesive 7 can prevent dust from entering the thin-film transistor liquid crystal display assembly 2 and play a certain role in shock absorption, protecting the liquid crystal layer 22 in the thin-film transistor liquid crystal display assembly 2.

[0026] Please see Figure 1 In this first embodiment of the combined vehicle-mounted display module, a double-sided transparent tape 4 is provided between the liquid crystal display assembly 2 and the upper segment display screen 1. More specifically, the upper polarizer 21 at the top of the liquid crystal display assembly 2 and the segment display screen 1 are bonded together by the double-sided transparent tape 4. Specifically, the liquid crystal display assembly 2 and the segment display screen 1 are bonded together by the double-sided transparent tape 4. By using the frame bonding technology of double-sided transparent tape 4 for bonding, the light transmittance of the central liquid crystal display area 12 of this novel invention can reach %, and the cost is low. It should be noted that in this embodiment, the liquid crystal display area 12 is a rectangular area, and the upper polarizer 21, liquid crystal layer 22, lower polarizer 23 and backlight 3 are all rectangularly arranged.

[0027] Please see Figure 3This is the second embodiment of the combined vehicle display module in this example. The difference from the first embodiment is that in this embodiment, the upper polarizer 21 and the segment display screen 1 are bonded together by liquid optical transparent adhesive 6. Specifically, the thin-film transistor liquid crystal display assembly 2 is provided with edge-sealing adhesive paper 5, and the thin-film transistor liquid crystal display assembly 2 and the segment display screen 1 are provided with liquid optical transparent adhesive 6. By using optical bonding technology with liquid optical transparent adhesive 6 for fixation, the light transmittance of the central liquid crystal display area 12 of this new type can reach %. After power is off and it is in working state, the entire segment display screen 1 is displayed as a whole black display.

[0028] In this embodiment, both the segment display screen 1 and the liquid crystal layer 22 are electrically connected to the vehicle circuit board. With this separate connection, the segment display area 11 and the liquid crystal display area 12 can work independently, without interference, and are convenient for later maintenance.

[0029] In summary, the combined vehicle display module in the above embodiments of this utility model divides the segment display screen into two segment display areas and a middle liquid crystal display area. By combining the segment display screen and the thin-film transistor liquid crystal display component, this utility model can display rich images and has low production costs. In addition, by setting a plastic frame, the thin-film transistor liquid crystal display component can be protected against dust and vibration.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A combined vehicle-mounted display module, characterized in that, The device includes a segment display screen and a thin-film transistor liquid crystal display (TFT-LCD) assembly disposed on one side of the segment display screen. An explosion-proof screen, the same size as the segment display screen, is provided on the side of the segment display screen away from the TFT-LCD assembly. The segment display screen includes a liquid crystal display area in the center and segment display areas on both sides of the liquid crystal display area. The TFT-LCD assembly is located directly below the liquid crystal display area and includes an upper polarizer, a liquid crystal layer, and a lower polarizer arranged sequentially from top to bottom. A backlight is provided on the side of the TFT-LCD assembly away from the segment display screen. The backlight includes a backlight body and a frame for fixing the backlight body. The TFT-LCD assembly is disposed on the side of the frame away from the backlight body. The backlight also includes a privacy film fixed to the lower end of the frame and a base plate disposed on the outer side for fixing the frame. The TFT-LCD assembly is adhesively connected to the segment display screen.

2. The combined vehicle display module according to claim 1, characterized in that, The frame has a groove for placing the thin-film transistor liquid crystal display assembly on the side near the assembly, and a light-transmitting groove for the backlight body to transmit light in the middle of the groove.

3. The combined vehicle display module according to claim 2, characterized in that, Foam adhesive is provided between the frame and the segment display screen.

4. The combined vehicle display module according to claim 3, characterized in that, A double-sided transparent tape is provided between the thin-film transistor liquid crystal display assembly and the segment display screen.

5. The combined vehicle display module according to claim 3, characterized in that, A liquid optical transparent adhesive is provided between the thin-film transistor liquid crystal display assembly and the segment display screen.

6. The combined vehicle display module according to claim 1, characterized in that, The thin-film transistor liquid crystal display assembly is surrounded by edge-sealing adhesive tape.

7. The combined vehicle display module according to claim 1, characterized in that, Both the segment display screen and the liquid crystal layer are electrically connected to the vehicle-mounted circuit board.

8. The combined vehicle display module according to claim 1, characterized in that, The backlight also includes a lower light enhancement film, a diffusion film, a light guide plate, and a reflective layer, which are arranged from top to bottom between the privacy film and the base plate.

Images