Head-up display pre-starting system and method

Abstract

The invention provides a head-up display pre-starting system and method, and belongs to the technical field of head-up display pre-starting. The head-up display pre-starting system comprises a switch module, a head-up display transmission module, a head-up display imaging module, a host and a windshield; the output end of the head-up display transmission module is connected with the input end of the host. The output end of the host is connected with the input end of the head-up display imaging module. During working, a user unlocks an automobile through the switch module, and the switch module inputs an unlocking signal to the head-up display transmission module; a transmission device in the head-up display transmission module controls the reflecting mirror to be transmitted to a working position, and meanwhile, the head-up display transmission module outputs a starting signal to the host; the host outputs a control instruction and image information to the head-up display imaging module, and the head-up display imaging module works. The user experience is improved, the waiting time of the user is shortened, and the cost of a manufacturer is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of head-up display pre-start, and in particular, the present invention relates to a head-up display pre-start system and method. Background Art

[0002] With the development of the times, the requirements for automobile safety are getting higher and higher. Drivers looking down at the display can easily cause safety accidents. As an advanced display technology, head-up display is used in the automotive field. It projects important driving information (such as speed, navigation instructions, fuel level, etc.) onto the windshield or a transparent display device, allowing the driver to see this information without diverting his sight.

[0003] Chinese patent 110579879A discloses a vehicle-mounted head-up display system and a control method thereof, wherein the vehicle-mounted head-up display system includes a head-up display device, a pupil tracking device and a controller; the head-up display device is arranged in front of the driver, for displaying images, and the position is adjustable; the pupil tracking device is used to obtain the pupil position information of the driver; the controller is electrically connected to the head-up display device and the pupil tracking device, can receive the pupil position information, and control the head-up display device to adjust its position according to the pupil position information so that the driver can see the image clearly.

[0004] The existing technology does not consider the startup problem of the head-up display. Users often need to wait for the head-up display to start after getting on the car, which increases the user's waiting time and affects the user experience. Summary of the invention

[0005] The present invention aims to provide a head-up display pre-start system and method, so as to achieve the technical purpose of enabling users to view car information without lowering their heads and starting the head-up display in advance to improve user experience.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a head-up display pre-starting system, comprising a switch module, a head-up display transmission module, a head-up display imaging module and a host, wherein the output end of the switch module is connected to the input end of the head-up display transmission module, the output end of the head-up display transmission module is connected to the input end of the host, and the output end of the host is connected to the input end of the head-up display imaging module.

[0008] The switch module outputs the vehicle unlocking information to the head-up display transmission module, the head-up display transmission module outputs the start signal to the host, and the host outputs the control instruction to the head-up display imaging module.

[0009] The head-up display transmission module includes a reflector and a transmission device, and the head-up display imaging module includes a backlight, a liquid crystal display screen and a windshield; the reflector is connected to the transmission device, and the backlight is connected to the liquid crystal display screen.

[0010] The reflector adopts an aspherical mirror.

[0011] The liquid crystal display uses a thin film field effect transistor liquid crystal display.

[0012] A wedge-shaped interlayer is arranged in the windshield.

[0013] The present invention provides a head-up display pre-starting method:

[0014] Step 1: The user unlocks the car through the switch module, and the switch module inputs the car unlocking information to the head-up display transmission module;

[0015] Step 2: The transmission device in the head-up display transmission module controls the reflector to be transmitted to the working position, and the head-up display transmission module outputs a start signal to the host;

[0016] Step 3: The host outputs control instructions and image information to the head-up display imaging module, and the head-up display imaging module works.

[0017] In step 2, after the head-up display transmission module receives the vehicle unlocking information, the transmission device controls the aspherical mirror to be transmitted to the working position, and the head-up display transmission module outputs a start signal of the transmission device to the host.

[0018] In step three, the host outputs image information to the thin film field effect transistor liquid crystal display screen.

[0019] The light source emitted by the backlight forms an image light source through the thin film field effect transistor liquid crystal display screen, and the image light source is reflected to the windshield through the aspherical mirror, and the image light source reflects the image information to the human eye through the windshield.

[0020] The technical effects of the present invention are:

[0021] (1) The present invention can start the head-up display transmission module without the need for a host, and completes the pre-start before the user's driving posture adjustment is completed, thereby improving the user experience.

[0022] (2) The present invention uses the combined effect of the reflector and the windshield to allow the head-up display imaging module to accurately reflect image information to the driver's field of vision, so that the driver can view various information about the vehicle, such as the vehicle's speed, navigation information, and remaining usage time, without having to lower his head.

[0023] (3) According to the present invention, the user can immediately see the head-up display image after adjusting the sitting posture, thereby reducing the user's waiting time. At the same time, the user will ignore the noise of the transmission device when adjusting the sitting posture. The manufacturer does not need to optimize the noise to the extreme, thereby reducing costs.

[0024] (4) The reflector of the present invention adopts an aspherical mirror, which can achieve the same effect of correcting aberrations as multiple spherical lenses. The liquid crystal display screen adopts a thin film field effect transistor liquid crystal display screen, which has the characteristics of high response speed, high brightness and high contrast, and meets the image display requirements of the head-up display. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] This specification includes the following drawings, which show the following contents:

[0026] Figure 1 A logical structure block diagram of a head-up display pre-starting system and method of the present invention;

[0027] Figure 1 The markings are: 1. switch module; 2. head-up display transmission module; 3. head-up display imaging module; 4. host. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0029] The present invention provides a head-up display pre-starting system, comprising a switch module 1, a head-up display transmission module 2, a head-up display imaging module 3 and a host 4, wherein the output end of the switch module 1 is connected to the input end of the head-up display transmission module 2, the output end of the head-up display transmission module 2 is connected to the input end of the host 4, and the output end of the host 4 is connected to the input end of the head-up display imaging module 3.

[0030] The switch module 1 outputs the vehicle unlocking information to the head-up display transmission module 2 , the head-up display transmission module 2 outputs the start signal to the host 4 , and the host 4 outputs the control instruction to the head-up display imaging module 3 .

[0031] The head-up display transmission module 2 includes a reflector and a transmission device, and the head-up display imaging module 3 includes a backlight, a liquid crystal display screen and a windshield. The reflector is connected to the transmission device, and the backlight is connected to the liquid crystal display screen. The reflector adopts an aspherical mirror. The liquid crystal display screen adopts a thin film field effect transistor liquid crystal display screen. A wedge-shaped interlayer is set in the windshield.

[0032] The present invention provides a head-up display pre-starting method:

[0033] Step 1: The user unlocks the car through the switch module 1, and the switch module 1 inputs the car unlocking signal to the head-up display transmission module 2;

[0034] Step 2: The transmission device in the head-up display transmission module 2 controls the reflector to be transmitted to the working position, and the head-up display transmission module 2 outputs a start signal to the host 4;

[0035] Step 3: the host 4 outputs control instructions and image information to the head-up display imaging module 3, and the head-up display imaging module 3 works.

[0036] In step 2, after the head-up display transmission module 2 receives the vehicle unlocking information, the transmission device controls the aspherical mirror to be transmitted to the working position, and the head-up display transmission module 2 outputs a start signal of the transmission device to the host 4.

[0037] In step 3, the host 4 outputs image information to the thin film field effect transistor liquid crystal display screen. The light source emitted by the backlight passes through the thin film field effect transistor liquid crystal display screen to form an image light source, and the image light source is reflected to the windshield through the aspherical mirror, and the image light source reflects the image information to the human eye through the windshield.

[0038] The following is a detailed description of a system and method for pre-starting a head-up display according to the present invention.

[0039] A head-up display pre-start system of the present invention comprises a switch module 1, a head-up display transmission module 2, a head-up display imaging module 3 and a host 4, wherein the switch module 1 comprises a physical key, a remote control button key and an induction key; the head-up display transmission module 2 comprises a transmission device and a reflector, the transmission device of the present invention adopts a telescopic rotary motor, and its high-precision transmission characteristics can meet the reflector transmission requirements, the reflector adopts an aspheric mirror, and the surface shape of the aspheric mirror is a quadratic or higher-order curved surface. This design can be accurately calculated and ground by a precision machine to achieve the effect of multiple spherical lenses correcting aberrations, meeting the imaging requirements of the head-up display of the present invention; the head-up display imaging module 3 comprises a backlight, a liquid crystal display screen and a windshield, wherein the liquid crystal display screen adopts a thin film field effect transistor liquid crystal display screen, and the thin film field effect transistor liquid crystal display screen has the characteristics of high response speed, high brightness and high contrast, meeting the image display requirements of the head-up display. The host 4 adopts a system-level chip, which can bear the requirements of rapid image generation and processing of the head-up display imaging module 3. The system-level chip in the embodiment of the present invention adopts a Rohm Warping chip. A wedge-shaped interlayer is provided in the windshield, and the interlayer may be a PVB film interlayer. Under the effect of the interlayer, the windshield is thicker at the top and thinner at the bottom, which can avoid the occurrence of virtual images and ghosting in the image formed by the imaging module 3 of the head-up display.

[0040] The telescopic rotary motor is connected to the aspheric mirror to control the transmission of the aspheric mirror. After the car is locked, the telescopic rotary motor controls the aspheric mirror to return to a safe position to prevent sunlight from flowing back. After the car is unlocked, the telescopic rotary motor drives the aspheric mirror to the working position for about 15 seconds. The thin film field effect transistor liquid crystal display screen is connected to the backlight. Since the liquid crystal itself does not emit light, the backlight is required to provide a light source. After the thin film field effect transistor liquid crystal display screen is illuminated by the backlight source, the thin film transistor integrated behind each pixel of the liquid crystal display screen drives the liquid crystal molecules to rotate to change the polarization state of the light source, thereby presenting different light and dark grayscales, and then presenting a color image through a color filter. The output end of the switch module 1 is connected to the input end of the transmission device, and the head-up display transmission module 2 is started after the car is unlocked. The output end of the head-up display transmission module 2 is connected to the input end of the host 4, and the startup information of the head-up display transmission module 2 is input to the host 4; after receiving the startup information of the head-up display transmission module 2, the host 4 outputs the control information to the head-up display imaging module 3, and the head-up display imaging module 3 starts to work, and the output image information is reflected to the human eye through the aspheric mirror and the windshield.

[0041] The present invention provides a head-up display pre-starting method:

[0042] Step 1: The user unlocks the car with a physical key, a remote button key or an induction key. After the car is powered on, the switch module 1 inputs a car unlocking signal to the head-up display transmission module 2. The head-up display transmission module 2 can be started without going through the host 4, and the pre-start is completed before the user's driving posture adjustment is completed, which can improve the user experience.

[0043] Step 2: After receiving the vehicle unlocking signal, the head-up display transmission module 2 controls the aspherical mirror to be transmitted to the working position, and at the same time, the head-up display transmission module 2 outputs a start signal of the transmission device to the host 4;

[0044] Step 3: The host 4 outputs control instructions and image information to the head-up display imaging module 3, and the head-up display imaging module 3 works. Specifically, the host 4 outputs image information to the thin film field effect transistor liquid crystal display screen, and the light source emitted by the backlight forms an image light source through the thin film field effect transistor liquid crystal display screen. The image light source reflects the image light source to the windshield through the aspherical mirror, and the image light source forms a virtual image through the windshield, showing various driving information and vehicle conditions, and then enters the human eye after refraction, amplification, and reflection. Through the combined effect of the reflector and the windshield, the head-up display imaging module 3 accurately reflects the image information to the driver's line of sight, so that the driver can view various information of the car without lowering his head, such as the speed, navigation information, and remaining use time of the car. The present invention can immediately see the head-up display image after the user completes the sitting posture adjustment, reducing the user's waiting time. At the same time, the user will ignore the noise of the transmission device when adjusting the sitting posture, and the manufacturer does not need to optimize the noise to the extreme, reducing the cost.

[0045] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A head-up display pre-start system, characterized in that: It includes a switch module, a head-up display transmission module, a head-up display imaging module and a host, wherein the output end of the switch module is connected to the input end of the head-up display transmission module, the output end of the head-up display transmission module is connected to the input end of the host, and the output end of the host is connected to the input end of the head-up display imaging module.

2. A head-up display pre-start system as claimed in claim 1, characterized in that: The switch module outputs the vehicle unlocking information to the head-up display transmission module, the head-up display transmission module outputs the start signal to the host, and the host outputs the control instruction to the head-up display imaging module.

3. A head-up display pre-start system as claimed in claim 1, characterized in that: The head-up display transmission module includes a reflector and a transmission device, and the head-up display imaging module includes a backlight, a liquid crystal display screen and a windshield; the reflector is connected to the transmission device, and the backlight is connected to the liquid crystal display screen.

4. A head-up display pre-start system as claimed in claim 3, characterized in that: The reflecting mirror is an aspherical mirror.

5. A head-up display pre-start system as claimed in claim 3, characterized in that: The liquid crystal display screen adopts a thin film field effect transistor liquid crystal display screen.

6. A head-up display pre-start system as claimed in claim 1, characterized in that: A wedge-shaped interlayer is arranged in the windshield.

7. A head-up display pre-starting method according to any one of claims 1 to 6, characterized in that: Step 1: The user unlocks the car through the switch module, and the switch module inputs the car unlocking information to the head-up display transmission module; Step 2: The transmission device in the head-up display transmission module controls the reflector to be transmitted to the working position, and the head-up display transmission module outputs a start signal to the host; Step 3: The host outputs control instructions and image information to the head-up display imaging module, and the head-up display imaging module works.

8. A head-up display pre-starting method as claimed in claim 7, characterized in that: In step 2, after the head-up display transmission module receives the vehicle unlocking information, the transmission device controls the aspherical mirror to be transmitted to the working position, and the head-up display transmission module outputs a start signal of the transmission device to the host.

9. A head-up display pre-starting method as claimed in claim 7, characterized in that: In step three, the host outputs image information to the thin film field effect transistor liquid crystal display screen.

10. A head-up display pre-starting method according to claim 7 or 9, characterized in that: The light source emitted by the backlight forms an image light source through the thin film field effect transistor liquid crystal display screen, and the image light source is reflected to the windshield through the aspherical mirror, and the image light source reflects the image information to the human eye through the windshield.

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