High-brightness electronic rearview mirror device and electric vehicle

Abstract

The utility model discloses a high-brightness electronic rearview mirror device which comprises a rearview camera, a display control module, a liquid crystal panel and a backlight module, and the display control module sends display electric signals to the liquid crystal panel according to real-time video data of the rearview camera. The backlight module is arranged in the liquid crystal display panel to control liquid crystal particles of corresponding pixels in a liquid crystal component of the liquid crystal display panel to store or release charges, so that light emitted by the backlight module is transmitted or blocked to display road condition pictures, and a brightness enhancement film capable of condensing light, a diffusion film capable of correcting the light propagation direction and a reflecting film capable of reflecting light are arranged in the backlight module. The first polarizing film and the second polarizing film which can control the light to be transmitted unidirectionally are arranged in the liquid crystal panel, so that the display brightness of the electronic rearview mirror device can be effectively improved, and a road condition picture generated by the rearview camera can be clearly displayed in an outdoor environment; therefore, the driver can correctly judge the road condition to make correct driving operation.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic rearview mirror devices, and more particularly to a high-brightness electronic rearview mirror device and an electric vehicle. Background Technology

[0002] Existing electric vehicle manufacturers equip their vehicles with electronic rearview mirrors so that users can directly view the road conditions behind the vehicle. However, electric vehicles are generally used for outdoor riding, and existing electronic rearview mirrors are prone to poor display quality due to the high brightness of outdoor environments. This can prevent users from clearly seeing the image displayed in the electronic rearview mirror, which in turn can lead to incorrect judgments about road conditions and incorrect driving operations. Utility Model Content

[0003] The purpose of this invention is to provide a high-brightness electronic rearview mirror device that can clearly display the road condition image generated by the rearview camera in outdoor environments, which helps the driver to correctly judge the road conditions and make the correct driving operation, effectively improving the driving safety of electric vehicles.

[0004] Another objective of this invention is to provide an electric vehicle in which a high-brightness electronic rearview mirror device can clearly display the road condition image generated by the rearview camera in outdoor environments, which helps the driver to correctly judge the road conditions and make the correct driving operation, effectively improving the driving safety of the electric vehicle.

[0005] To achieve the above objectives, this utility model discloses a high-brightness electronic rearview mirror device, which includes:

[0006] Rearview camera, display control module, LCD panel and backlight module,

[0007] The display control module is electrically connected to the rearview camera and the LCD panel respectively. The rearview camera is used to generate real-time video data, and the display control module is used to acquire the real-time video data and send display electrical signals to the LCD panel.

[0008] The liquid crystal panel includes a first polarizing film, a liquid crystal component, and a second polarizing film. The first polarizing film is attached to the front side of the liquid crystal component, and the second polarizing film is attached to the back side of the liquid crystal component. The liquid crystal panel is used to control the liquid crystal particles of the corresponding pixels in the liquid crystal component to store or release charges according to the display electrical signal so that the light emitted by the backlight module can pass through or be blocked.

[0009] The backlight module is disposed on the lower side of the liquid crystal panel. The backlight module includes a frame and a brightness enhancement film, a diffusion film, a light guide plate, a light-emitting component, and a reflective film disposed within the frame. The diffusion film is attached to the front side of the light guide plate, the brightness enhancement film is attached to the front side of the diffusion film, the light guide plate covers the upper side of the light-emitting component, and the reflective film is attached to the back side of the light-emitting component.

[0010] Optionally, the frame includes a cover frame and a base frame. The back of the cover frame is provided with a first receiving groove, and the front of the base frame is provided with a second receiving groove. The light guide plate with the brightness enhancement film and the diffusion film attached, and the light-emitting component with the reflective film attached, are disposed in the second receiving groove. The cover frame covers the front of the base frame so that the base frame is accommodated in the first receiving groove. The front of the cover frame is provided with a penetrating hole corresponding to the second receiving groove and communicating with the first receiving groove. The light emitted by the backlight module is emitted to the liquid crystal panel through the penetrating hole.

[0011] Optionally, the light-emitting component includes a plurality of LEDs arranged in an array.

[0012] Optionally, the liquid crystal panel further includes a display FPC module, the display FPC module includes a first input terminal and a first output terminal, the first input terminal is electrically connected to the display control module, the liquid crystal assembly includes a first glass substrate, a color filter, a liquid crystal layer and a second glass substrate, a conductive layer is disposed on the front side of the second glass substrate, the conductive layer is electrically connected to the first output terminal, the liquid crystal layer is disposed on the front side of the second glass substrate and is electrically connected to the conductive layer, the color filter is attached to the front side of the liquid crystal layer, and the first glass substrate covers the upper side of the color filter.

[0013] Optionally, the electronic rearview mirror device further includes a touch panel, which is disposed on the upper side of the liquid crystal panel and electrically connected to the display control module. The display control module is provided with a memory for storing acquired video data. The touch panel is used to send a playback signal to the display control module. The display control module is used to read the corresponding video data in the memory according to the playback signal and send a corresponding display signal to the liquid crystal panel according to the read video data.

[0014] Optionally, the touch panel includes a glass cover, a functional piece, and a touch FPC module. The glass cover covers the front of the functional piece, which is used to generate touch feedback electrical signals. The touch FPC module includes a second input terminal and a second output terminal. The functional piece is electrically connected to the second input terminal, and the second output terminal is electrically connected to the display control module.

[0015] To achieve the other objective mentioned above, this utility model discloses an electric vehicle, which includes: a high-brightness electronic rearview mirror device as described above.

[0016] This invention includes a rearview camera, a display control module, an LCD panel, and a backlight module. The display control module sends display electrical signals to the LCD panel based on real-time video data from the rearview camera, controlling the liquid crystal particles of corresponding pixels in the LCD panel to store or release charges, thereby allowing light emitted from the backlight module to pass through or be blocked, thus displaying road condition images. The backlight module is equipped with a light-focusing brightening film, a light-correcting diffusion film, and a light-reflecting film. The LCD panel is equipped with a first polarizing film and a second polarizing film to control the unidirectional propagation of light. This effectively improves the display brightness of the electronic rearview mirror device, enabling it to clearly display the road condition images generated by the rearview camera even in outdoor environments. This helps drivers correctly judge road conditions and make appropriate driving operations, effectively improving the driving safety of electric vehicles. Attached Figure Description

[0017] Figure 1 This is a schematic block diagram of a high-brightness electronic rearview mirror device according to an embodiment of the present invention.

[0018] Figure 2 This is a front view of the touch panel, liquid crystal panel, and backlight module in the high-brightness electronic rearview mirror device according to an embodiment of the present invention.

[0019] Figure 3 This is a side view of the touch panel, liquid crystal panel, and backlight module in the high-brightness electronic rearview mirror device according to an embodiment of the present invention.

[0020] Figure 4 This is a rear view of the touch panel, liquid crystal panel, and backlight module in a high-brightness electronic rearview mirror device according to an embodiment of the present invention.

[0021] Figure 5 This is a cross-sectional view of the touch panel, liquid crystal panel, and backlight module in the high-brightness electronic rearview mirror device according to an embodiment of the present invention. Detailed Implementation

[0022] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0023] Please see Figures 1 to 5 This utility model discloses a high-brightness electronic rearview mirror device, which includes:

[0024] 1. Rearview camera; 2. Display control module; 3. LCD panel; 4. Backlight module.

[0025] The display control module 2 is electrically connected to the rearview camera 1 and the LCD panel 3 respectively. The rearview camera 1 is used to generate real-time video data, and the display control module 2 is used to acquire real-time video data and send display electrical signals to the LCD panel 3.

[0026] The liquid crystal panel 3 includes a first polarizing film 31, a liquid crystal component 32, and a second polarizing film 33. The first polarizing film 31 is attached to the front side of the liquid crystal component 32, and the second polarizing film 33 is attached to the back side of the liquid crystal component 32. The liquid crystal panel 3 is used to control the liquid crystal particles of the corresponding pixels in the liquid crystal component 32 to store or release charges according to the display electrical signal so that the light emitted by the backlight module 4 can pass through or be blocked.

[0027] The backlight module 4 is disposed on the lower side of the LCD panel 3. The backlight module 4 includes a frame 41 and a brightness enhancement film 42, a diffusion film 43, a light guide plate 44, a light-emitting component 45, and a reflective film 46 disposed within the frame 41. The diffusion film 43 is attached to the front side of the light guide plate 44, the brightness enhancement film 42 is attached to the front side of the diffusion film 43, the light guide plate 44 covers the upper side of the light-emitting component 45, and the reflective film 46 is attached to the back side of the light-emitting component 45.

[0028] This invention includes a rearview camera 1, a display control module 2, a liquid crystal panel 3, and a backlight module 4. The display control module 2 sends display electrical signals to the liquid crystal panel 3 based on the real-time video data from the rearview camera 1, thereby controlling the liquid crystal particles of corresponding pixels in the liquid crystal components 32 of the liquid crystal panel 3 to store or release charges, thus allowing the light emitted by the backlight module 4 to pass through or be blocked, thereby displaying the road condition image. The backlight module 4 is provided with a light-concentrating brightening film 42, a light-correcting diffusion film 43, and a light-reflecting film 46. The liquid crystal panel 3 is provided with a first polarizing film 31 and a second polarizing film 33 to control the unidirectional propagation of light. This effectively improves the display brightness of the electronic rearview mirror device, enabling it to clearly display the road condition image generated by the rearview camera 1 even in outdoor environments. This helps the driver to correctly judge the road conditions and make correct driving operations, effectively improving the driving safety of electric vehicles.

[0029] See Figures 1 to 5The frame 41 includes a cover frame 411 and a base frame 412. The back of the cover frame 411 is provided with a first receiving groove 413, and the front of the base frame 412 is provided with a second receiving groove 414. A light guide plate 44 with a brightness enhancement film 42 and a diffusion film 43 attached, and a light-emitting component 45 with a reflective film 46 attached are disposed in the second receiving groove 414. The cover frame 411 covers the front of the base frame 412 so that the base frame 412 is accommodated in the first receiving groove 413. The front of the cover frame 411 is provided with a penetrating hole 415 corresponding to the second receiving groove 414 and communicating with the first receiving groove 413. The light emitted by the backlight module is emitted to the liquid crystal panel 3 through the penetrating hole 415.

[0030] Specifically, in this embodiment, the cover frame 411 is made of plastic, which can provide structural support for the liquid crystal panel 3 in conjunction with the base frame 412, so that the liquid crystal panel 3 can be flatly combined with the backlight module 4. The base frame 412 is made of iron, which is responsible for providing structural support for the brightness enhancement film 42, diffusion film 43, light guide plate 44, light-emitting component 45 and reflective film 46 disposed in the frame 41, and achieving a certain heat dissipation effect.

[0031] Furthermore, the light-emitting component 45 includes a plurality of LEDs arranged in an array.

[0032] Specifically, in this embodiment, the LED lamp serves as the light-emitting element of the backlight module 4, responsible for providing the light source. The light guide plate 44 is responsible for guiding the light emitted by the LED lamp toward the liquid crystal panel 3. In conjunction with the setting of the reflective film 46, the light escaping from the light guide plate 44 is reflected back to the light guide plate 44 to improve the utilization rate of the light emitted by the LED lamp, but it is not limited to this.

[0033] Specifically, in this embodiment, the brightness enhancement film 42 is a light-concentrating film that can concentrate the light emitted by the light-emitting component 45, and the diffusion film 43 is responsible for correcting the propagation direction of the light emitted through the light guide plate 44 so that the backlight module 4 can provide uniform and soft light to the liquid crystal panel 3. With the first polarizing film 31 and the second polarizing film 33 attached to the front and back of the liquid crystal component 32 respectively, which can control the light to pass through from one direction, the luminous efficiency of the entire backlight module 4 can be effectively improved so that the maximum display brightness of the electronic rearview mirror device can reach 2000 cd / m2, but it is not limited to this.

[0034] See Figures 1 to 5The LCD panel 3 also includes a display FPC module 34, which includes a first input terminal 341 and a first output terminal 342. The first input terminal 341 is electrically connected to the display control module 2. The LCD component 32 includes a first glass substrate 321, a color filter 322, a liquid crystal layer 323, and a second glass substrate 324. A conductive layer is disposed on the front side of the second glass substrate 324 and is electrically connected to the first output terminal 342. The liquid crystal layer 323 is disposed on the front side of the second glass substrate 324 and is electrically connected to the conductive layer. The color filter 322 is attached to the front side of the liquid crystal layer 323. The first glass substrate 321 covers the upper side of the color filter 322.

[0035] Specifically, in this embodiment, the liquid crystal panel 3 is a 3.95-inch TFT-LCD screen with a resolution of 720*720. It uses thin-film transistors (TFTs) as control elements. By controlling the storage or release of charge in the liquid crystal particles of each pixel, it controls the transmission or blocking of light. This allows the liquid crystal layer 323 to determine the arrangement and polarization state of its pixels through a combination of electrical and elastic forces. When no charge passes through the liquid crystal particles, the liquid crystal molecules block the light from passing through, and the corresponding pixel is displayed as black. When charge passes through the liquid crystal particles, the liquid crystal molecules allow the light to pass through, and the corresponding pixel is displayed as a bright color, thereby realizing the function of liquid crystal display.

[0036] Specifically, in this embodiment, the light deflected by the liquid crystal molecules can only display different gray levels and cannot provide the three primary colors of red, green and blue (RGB). Therefore, a color filter 322 composed of three RGB filters is also provided. The color and brightness of each pixel are adjusted by mixing the three filters, but it is not limited to this.

[0037] Specifically, the first glass substrate 321 and the second glass substrate 324 serve as the main body of the entire liquid crystal assembly 32. A conductive layer is formed on the second glass substrate 324 as the substrate. In this embodiment, the conductive layer is an ITO transparent conductive layer, which includes pixel electrodes (P-level) and common electrodes (M-level). It is responsible for providing a conductive path for the liquid crystal layer 323. When the display control module 2 sends a display electrical signal to the liquid crystal panel 3 through the display FPC module 34, the display electrical signal can be conducted to the liquid crystal layer 323 through the conductive layer to control the display of each pixel. This allows the liquid crystal panel 3 to display the road condition image captured by the rearview camera 1 according to the display electrical signal, but it is not limited to this.

[0038] See Figures 1 to 5The high-brightness electronic rearview mirror device also includes a touch panel 5, which is located on the upper side of the LCD panel 3 and electrically connected to the display control module 2. The display control module 2 is equipped with a memory 21 for storing acquired video data. The touch panel 5 is used to send a playback signal to the display control module 2. The display control module 2 is used to read the corresponding video data in the memory 21 according to the playback signal and send the corresponding display signal to the LCD panel 3 according to the read video data.

[0039] Furthermore, the touch panel 5 includes a glass cover 51, a functional piece 52, and a touch FPC module 53. The glass cover 51 covers the front of the functional piece 52. The functional piece 52 is used to generate touch feedback electrical signals. The touch FPC module 53 includes a second input terminal 531 and a second output terminal 532. The functional piece 52 is electrically connected to the second input terminal 531, and the second output terminal 532 is electrically connected to the display control module 2.

[0040] Specifically, in this embodiment, the glass cover 51 is made of tempered glass, which provides mechanical protection for the functional piece 52 while also having a certain decorative effect. The functional piece 52 is a capacitive touch screen functional piece 52. In conjunction with the operation interface displayed on the LCD panel 3, the user can perform touch operations on the touch panel 5, causing the functional piece 52 to generate different touch feedback electrical signals, which are then sent to the display control module 2 through the touch FPC module 53 to form the input module of the electronic rearview mirror device.

[0041] Specifically, in this embodiment, the display control module 2 includes a processor 22. The processor 22 is responsible for recognizing the received touch feedback electrical signals to determine whether the user needs the LCD panel 3 to display real-time traffic conditions or previous video footage. Then, it outputs the corresponding display electrical signals based on the real-time video data generated by the rearview camera 1, or based on the corresponding video data in the memory 21. Through cooperation with the LCD panel 3, the electronic rearview mirror device has the function of viewing traffic conditions in real time and playing back the video footage of the rearview camera 1.

[0042] Please see Figures 1 to 5 This utility model discloses an electric vehicle, which includes: a high-brightness electronic rearview mirror device as described above.

[0043] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A high-brightness electronic rearview mirror device, characterized in that, include: Rearview camera, display control module, LCD panel and backlight module, The display control module is electrically connected to the rearview camera and the LCD panel respectively. The rearview camera is used to generate real-time video data, and the display control module is used to acquire the real-time video data and send display electrical signals to the LCD panel. The liquid crystal panel includes a first polarizing film, a liquid crystal component, and a second polarizing film. The first polarizing film is attached to the front side of the liquid crystal component, and the second polarizing film is attached to the back side of the liquid crystal component. The liquid crystal panel is used to control the liquid crystal particles of the corresponding pixels in the liquid crystal component to store or release charges according to the display electrical signal so that the light emitted by the backlight module can pass through or be blocked. The backlight module is disposed on the lower side of the liquid crystal panel. The backlight module includes a frame and a brightness enhancement film, a diffusion film, a light guide plate, a light-emitting component, and a reflective film disposed within the frame. The diffusion film is attached to the front side of the light guide plate, the brightness enhancement film is attached to the front side of the diffusion film, the light guide plate covers the upper side of the light-emitting component, and the reflective film is attached to the back side of the light-emitting component.

2. The high-brightness electronic rearview mirror device according to claim 1, characterized in that, The frame includes a cover frame and a base frame. The back of the cover frame is provided with a first receiving groove, and the front of the base frame is provided with a second receiving groove. A light guide plate with the brightness enhancement film and the diffusion film attached, and a light-emitting component with the reflective film attached, are disposed in the second receiving groove. The cover frame covers the front of the base frame so that the base frame is accommodated in the first receiving groove. The front of the cover frame is provided with a penetrating hole corresponding to the second receiving groove and communicating with the first receiving groove. The light emitted by the backlight module is emitted to the liquid crystal panel through the penetrating hole.

3. The high-brightness electronic rearview mirror device according to claim 1, characterized in that, The light-emitting component includes multiple LEDs arranged in an array.

4. The high-brightness electronic rearview mirror device according to claim 1, characterized in that, The liquid crystal panel further includes a display FPC module, which includes a first input terminal and a first output terminal. The first input terminal is electrically connected to the display control module. The liquid crystal assembly includes a first glass substrate, a color filter, a liquid crystal layer, and a second glass substrate. A conductive layer is disposed on the front side of the second glass substrate and is electrically connected to the first output terminal. The liquid crystal layer is disposed on the front side of the second glass substrate and is electrically connected to the conductive layer. The color filter is attached to the front side of the liquid crystal layer, and the first glass substrate covers the upper side of the color filter.

5. The high-brightness electronic rearview mirror device according to claim 1, characterized in that, It also includes a touch panel, which is disposed on the upper side of the LCD panel and electrically connected to the display control module. The display control module is provided with a memory for storing acquired video data. The touch panel is used to send a playback signal to the display control module. The display control module is used to read the corresponding video data in the memory according to the playback signal and send the corresponding display signal to the LCD panel according to the read video data.

6. The high-brightness electronic rearview mirror device according to claim 5, characterized in that, The touch panel includes a glass cover, a functional piece, and a touch FPC module. The glass cover covers the front of the functional piece, which is used to generate touch feedback electrical signals. The touch FPC module includes a second input terminal and a second output terminal. The functional piece is electrically connected to the second input terminal, and the second output terminal is electrically connected to the display control module.

7. An electric vehicle, characterized in that, include: The high-brightness electronic rearview mirror device as described in any one of claims 1 to 6.

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