Vehicle-mounted LCD display screen

Abstract

The utility model discloses a vehicle-mounted LCD display screen, relates to the display technical field, the vehicle-mounted LCD display screen comprises a mounting frame, a display screen body, a backboard and a light sensing module, the display screen body is fixedly arranged in the mounting frame; the back plate is arranged in the mounting frame, and a light hole is formed in the back plate; the light sensing module is installed on the display screen body and electrically connected with the display screen body, and the light sensing module corresponds to the light hole so as to sense the brightness change of the external environment. According to the technical scheme provided by the utility model, the problem that the brightness of the existing display screen cannot be automatically adjusted according to the external environment is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technology field especially relates to a vehicle-mounted LCD display screen. BACKGROUND

[0002] In today's automotive technology field, liquid crystal display (LCD) has become an important part of vehicle infotainment systems, navigation systems and various vehicle monitoring instrument panels. However, the existing vehicle-mounted LCD display screen usually does not have a brightness adjustment function, specifically, the existing vehicle-mounted LCD display screen mostly adopts a fixed brightness setting.

[0003] However, in actual situations, the brightness of the in-vehicle environment will change with the change of external light conditions (such as sunny to cloudy, sunrise and sunset, tunnel driving, etc.). When the external light is strong, such as direct sunlight in the car, the LCD display screen may become difficult to watch due to reflection and glare; while in dim or night environment, the fixed brightness of the display screen may be too dazzling, causing discomfort to the driver's vision. Therefore, when using the vehicle-mounted LCD display screen, the driver and passenger often need to manually adjust the brightness, which is not only cumbersome to operate, but also may distract the driver's attention, affecting driving safety. SUMMARY

[0004] The main purpose of the utility model is to provide a vehicle-mounted LCD display screen, which aims to solve the problem that the existing display screen cannot automatically adjust the brightness according to the external environment.

[0005] To achieve the above purpose, the vehicle-mounted LCD display screen provided by the utility model comprises:

[0006] a mounting frame;

[0007] a display screen body fixedly arranged inside the mounting frame;

[0008] a back plate arranged inside the mounting frame, the back plate being provided with a light transmission hole; and

[0009] a light sensing module mounted on the display screen body and electrically connected to the display screen body, the light sensing module being arranged correspondingly to the light transmission hole to sense the brightness change of the external environment.

[0010] In an embodiment, the vehicle-mounted LCD display screen further comprises a light improvement structure arranged on the side of the back plate facing the display screen body and attached to the light transmission hole, so that the light passing through the light transmission hole is irradiated onto the light sensing module.

[0011] In an embodiment, a plurality of diffusion holes are arranged on the light improvement structure, and the plurality of diffusion holes are distributed in a honeycomb shape.

[0012] In an embodiment, the cross-sectional area of the light improving structure increases from the end close to the back plate to the end away from the back plate.

[0013] In an embodiment, the display screen body is provided with a notch, the notch is arranged close to the light transmission hole, and the light sensing module is fixedly arranged at the notch.

[0014] In an embodiment, the light sensing module comprises:

[0015] a fixing seat mounted at the notch; and

[0016] a light sensor rotatably arranged at the fixing seat and arranged close to the light transmission hole.

[0017] In an embodiment, the vehicle-mounted LCD display screen further comprises a control box, the control box is mounted on the side of the back plate away from the display screen body, and is used for being connected with a vehicle, the control box is internally provided with a circuit board and a touch plate, and the circuit board and the touch plate are electrically connected with the display screen body respectively.

[0018] In an embodiment, the vehicle-mounted LCD display screen further comprises a control module, the control module is arranged in the control box and is used for connecting the light sensor and the display screen body.

[0019] In an embodiment, the control module comprises a microprocessor and a PWM controller, the microprocessor is used for analyzing light data sensed by the light sensor, and the brightness of the display screen body is adjusted through the PWM controller.

[0020] In an embodiment, the coverage of the DCI-P3 color gamut of the display screen body is 100%.

[0021] In an embodiment, the back plate is made of carbon fiber material.

[0022] The technical scheme of the utility model discloses a light transmission hole is arranged on the back plate, and a light sensing module is mounted on the display screen body, so that the light sensing module is arranged correspondingly with the light transmission hole, the brightness change of the external environment is sensed, and the brightness of the display screen is automatically adjusted according to the brightness of the external environment, which can reduce energy consumption while ensuring visibility. Through the cooperation of the light transmission hole and the light sensing module, the brightness change of the external environment can be collected in real time, so that the user does not need to manually adjust, the display screen can adapt to various environments from bright to dim, and the best visual effect can be provided under any condition. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings described in the following are only some of the embodiments of the present application, and for the ordinary skilled in the art, other drawings can be obtained according to the structures shown in these drawings without creative labor.

[0024] Figure 1 The structural schematic diagram of one embodiment of the vehicle-mounted LCD display provided by the present application is shown in the figure.

[0025] Figure 2 The structural explosion view of one embodiment of the vehicle-mounted LCD display provided by the present application is shown in the figure.

[0026] Figure 3 The structural top view of the light improvement structure in another embodiment of the vehicle-mounted LCD display provided by the present application is shown in the figure.

[0027] Figure 4 The structural front view of the light improvement structure in another embodiment of the vehicle-mounted LCD display provided by the present application is shown in the figure.

[0028] Figure 5 The structural explosion view of the control box in still another embodiment of the vehicle-mounted LCD display provided by the present application is shown in the figure.

[0029] Explanation of the reference signs:

[0030] 100, vehicle-mounted LCD display; 1, mounting frame; 2, display body; 21, notch; 3, back plate; 31, light transmission hole; 4, light sensing module; 5, light improvement structure; 51, diffusion hole; 6, control box; 61, circuit board; 62, touch plate; 63, front shell; 64, rear shell; 7, glass plate.

[0031] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0033] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, if the certain posture changes, the directionality indication also changes accordingly.

[0034] In addition, if the embodiments of the utility model have descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the utility model.

[0035] In actual situations, the brightness of the in-vehicle environment will change with the change of external light conditions (such as sunny to cloudy, sunrise and sunset, tunnel driving, etc.). When the external light is strong, such as direct sunlight in the vehicle, the LCD display screen may become difficult to watch due to reflection and glare; while in dim or night environment, the fixed brightness of the display screen may be too dazzling, causing discomfort to the driver's vision. Therefore, when using the vehicle-mounted LCD display screen, the driver and passenger often need to manually adjust the brightness, which is not only cumbersome to operate, but also may distract the driver's attention, affecting the driving safety.

[0036] The utility model provides a kind of vehicle-mounted LCD display screen.

[0037] Please refer to Figure 1 And Figure 2 In an embodiment of the utility model, the vehicle-mounted LCD display screen comprises:

[0038] The mounting frame is installed on the inside of the mounting frame.

[0039] The display screen body is fixedly arranged in the inside of the mounting frame.

[0040] The backboard is arranged in the inside of the mounting frame, and the backboard is provided with a light transmission hole.

[0041] The light sensing module is installed on the display screen body and electrically connected with the display screen body, and the light sensing module is correspondingly arranged with the light transmission hole to sense the brightness change of external environment.

[0042] The technical scheme of the utility model discloses a light transmission hole is arranged on the back plate, and a light sensing module is installed on the display screen body, so that the light sensing module is arranged correspondingly with the light transmission hole, the brightness change of the external environment is sensed, and the display screen brightness is automatically adjusted according to the brightness of the external environment, so that the visibility can be ensured while reducing the energy consumption. Through the cooperation of the light transmission hole and the light sensing module, the brightness change of the external environment can be collected in real time, so that the user does not need to manually adjust, the display screen can adapt to various environments from bright to dim, and the best visual effect can be provided under any condition.

[0043] Specifically, the light transmission hole is a single hole arranged on the back plate or a row of holes arranged in a certain manner, and the position and size thereof are designed according to the sensing range and sensitivity of the light sensing module, so as to ensure that the external light can smoothly pass through and be sensed by the light sensing module. The light sensing module is installed on the display screen body and is electrically connected with the display screen body, and senses the brightness change of the external environment through the light transmission hole. The display screen body receives the light change collected on the light sensing module, so as to adaptively adjust the display brightness thereof. It should be noted that a material with good light transmission property, such as transparent or translucent plastic, is used at the light transmission hole. The position of the light transmission hole is not limited, for example, the light transmission hole can be arranged at a corner of the back plate or other positions of the back plate, as long as the normal display of the display screen body is not affected. Optionally, the display screen can further include a temperature sensor, which is installed on the display screen body and arranged close to the light transmission hole. Considering that the temperature can also affect the display effect of the display screen body, the temperature sensor can assist the light sensing module to more accurately adjust the display screen brightness, so as to avoid that the display abnormality caused by the temperature is misjudged as a light problem.

[0044] It is worth mentioning that the back plate is made of carbon fiber material, the carbon fiber has high strength and rigidity, the use of the carbon fiber back plate can improve the structural stability and durability of the display screen, reduce the overall weight of the display screen, and resist external impact and vibration. Moreover, the carbon fiber material has good chemical corrosion resistance and is suitable for various environmental conditions, thereby improving the reliability of the display screen under different environments. In addition, the display screen body selects a display screen with a DCI-P3 color gamut coverage of 100%, which means that the display screen can display more rich and accurate colors. The high color gamut coverage makes the display screen display images and videos with more vivid colors, enhances the visual impact, and improves the user experience. Further, the vehicle-mounted LCD display screen can further include a glass plate arranged on the side of the display screen body away from the back plate and attached to the display screen body, thereby providing additional protection for the display screen body and preventing the display screen from being scratched or broken after being used for several times.

[0045] In the embodiment of the utility model, please refer to Figure 2The vehicle-mounted LCD display screen further comprises a light improvement structure, which is arranged on the side of the back plate facing the display screen body and attached to the light transmission hole to enable the light passing through the light transmission hole to irradiate on the light sensing module. The light improvement structure can efficiently transmit the light passing through the light transmission hole to the light sensing module, ensuring that the light sensing module can accurately sense the brightness change of the external environment. The light improvement structure can be made of a material with high transparency, such as PMMA (polymethyl methacrylate) or PC (polycarbonate), to effectively transmit the light. The structure of the light improvement structure is not limited, for example, it can be a prism or a honeycomb structure, as long as it can transmit the light passing through the light transmission hole to the light sensing module after dispersing the light.

[0046] In the embodiment of the present application, please refer to Figure 3 The light improvement structure is provided with a plurality of diffusion holes, and the plurality of diffusion holes are distributed in a honeycomb shape. The diffusion holes distributed in a honeycomb shape help the light to be uniformly distributed inside the light improvement structure, reducing the light spot and the uneven brightness. The diffusion holes can increase the scattering and reflection of light, thereby improving the light transmission efficiency of the light improvement structure and enabling the light sensing module to more accurately sense the change in ambient brightness. The diffusion holes distributed in a honeycomb shape enable the light to be dispersed when passing through the light improvement structure, increasing the illumination range while maintaining the light intensity.

[0047] In the embodiment of the present application, please refer to Figure 4 The cross-sectional area of the light improvement structure gradually increases from the end close to the back plate to the end away from the back plate. The gradually increasing cross-sectional area helps to gradually collect and diffuse the light passing through the light transmission hole, enabling the light to be more uniformly distributed at the distal end of the light improvement structure. The cross section of the light improvement structure can be trapezoidal, parabolic or conical, gradually widening from the end close to the back plate to the end away from the back plate. The light improvement structure can be made of a material with good light transmission and optical properties, such as PMMA (polymethyl methacrylate) or PC (polycarbonate), to ensure that the light can be effectively transmitted and scattered.

[0048] In the embodiment of the present application, please refer to Figure 2 The display screen body is provided with a notch, the notch is arranged close to the light transmission hole, and the light sensing module is fixedly arranged at the notch. The notch on the display screen body can be designed as a long and narrow groove or a space with a specific shape. The position and size of the notch are designed according to the size of the light sensing module and the position of the light transmission hole. The light sensing module is fixedly arranged at the notch and can be fixed to the display screen body by bonding, buckling or welding, thereby reducing the space occupation volume and improving the compactness of the connection between the components.

[0049] In the embodiment of the present application, the light sensing module comprises:

[0050] A fixing seat (not shown in the figure) is mounted at the notch.

[0051] The light sensor is rotatably arranged on the fixing base and is arranged close to the light transmission hole.

[0052] Specifically, the light sensor can be designed to rotate freely on the fixing base to adapt to light transmission holes of different angles. This design allows the light sensor to accurately align with the light transmission hole, maximizing light sensing efficiency. The fixing base is installed at the notch of the display screen body, providing stable support and positioning for the light sensor. The fixing base can be fixed by screws, adhesion or other mechanical means. The light sensor can be a photodiode or a phototransistor, which can detect the intensity of external ambient light and convert the light signal into an electrical signal, producing different voltage or current values according to different light intensities, thereby providing data for brightness adjustment of the display screen body.

[0053] In the embodiment of the present application, please refer to 2 and Figure 5 The vehicle-mounted LCD display screen further comprises a control box, which is installed on the side of the back plate away from the display screen body and is used to connect with the vehicle. The control box is internally provided with a circuit board and a touch panel, both of which are electrically connected with the display screen body. For example, the circuit board and the touch panel are electrically connected with the display screen body through a cable or a flexible circuit board (FPC), ensuring the stability and reliability of signal transmission. The control box can be designed as a rectangular or custom-shaped box, the size and shape of which are customized according to the size of the internal circuit board and touch panel, and there is enough space to accommodate wiring and heat dissipation requirements. The control box can include a front shell and a rear shell, the rear shell is rotatably connected with the vehicle, and the front shell is installed on the back plate. Optionally, the front shell can also be provided with a wire slot for the cable or flexible circuit board to pass through. The control box integrates the circuit board and the touch panel, providing centralized control functions and preventing the circuit board and the touch panel from being physically damaged or affected by the environment.

[0054] In the embodiment of the present application, the vehicle-mounted LCD display screen further comprises a control module, which is arranged in the control box and is used to connect the light sensor and the display screen body. The control module can be integrated with necessary electronic components such as microprocessors, memories and interface circuits for processing signals of the light sensor and controlling the display screen body. The control module can be electrically connected with the light sensor and the display screen body through a cable or a flexible circuit board (FPC), ensuring the stability and reliability of signal transmission.

[0055] In the embodiment of the utility model, control module includes microprocessor and PWM controller, microprocessor is used for the light data that light sensor sensed, and realizes the accurate adjustment to display screen brightness through PWM controller. The specific process is, microprocessor calculates the required brightness adjustment instruction after the light data that light sensor sensed, then these instructions are sent to PWM controller, and the brightness of display screen is adjusted according to instruction by PWM controller, the user does not need to manually adjust display screen brightness in this process, and display system can automatically adapt to the light variation of outside, and better user experience is provided.

[0056] The above merely illustrates the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure transformation made by the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the technical concept of the utility model is included in the patent protection range of the utility model.

Claims

1. An on-vehicle LCD display, characterized by comprising: The vehicle-mounted LCD display screen comprises: a mounting frame; a display screen body fixedly arranged inside the mounting frame; a back plate arranged inside the mounting frame, the back plate being provided with a light transmission hole; and a light sensing module mounted on the display screen body and electrically connected with the display screen body, the light sensing module being arranged corresponding to the light transmission hole to sense the brightness change of the external environment.

2. The LCD display screen for a vehicle as claimed in claim 1, wherein, The vehicle-mounted LCD display screen further comprises a light improvement structure arranged on the side of the back plate facing the display screen body and attached to the light transmission hole to make the light passing through the light transmission hole irradiate on the light sensing module.

3. The LCD display screen for a vehicle as set forth in claim 2, wherein, The light improvement structure is provided with a plurality of diffusion holes, and the plurality of diffusion holes are distributed in a honeycomb shape.

4. The LCD display screen for a vehicle as set forth in claim 2, wherein, The cross-sectional area of the light improvement structure increases from the end close to the back plate to the end away from the back plate.

5. The LCD display screen for a vehicle as set forth in claim 1, wherein, The display screen body is provided with a notch arranged close to the light transmission hole, and the light sensing module is fixedly arranged at the notch.

6. The LCD display screen for a vehicle as set forth in claim 5, wherein, The light sensing module comprises: a fixing seat mounted at the notch; and a light sensor rotatably arranged at the fixing seat and arranged close to the light transmission hole.

7. The LCD display screen for a vehicle as set forth in claim 6, wherein, The vehicle-mounted LCD display screen further comprises a control box mounted on the side of the back plate away from the display screen body and used for being connected with the vehicle, the control box being provided with a circuit board and a touch plate inside, the circuit board and the touch plate being electrically connected with the display screen body respectively.

8. The LCD display screen for a vehicle as claimed in claim 7, wherein, The vehicle-mounted LCD display screen further comprises a control module arranged in the control box and used for being connected with the light sensor and the display screen body.

9. The LCD display screen for a vehicle as set forth in claim 8, wherein, The control module comprises a microprocessor and a PWM controller, the microprocessor being used for analyzing the light data sensed by the light sensor and adjusting the brightness of the display screen body through the PWM controller.

10. The LCD display screen for a vehicle as claimed in any one of claims 1 to 9, wherein, The coverage rate of the DCI-P3 color gamut of the display screen body is 100%, and / or the back plate is made of carbon fiber material.

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