阅读说明：本技术 一种控制背光区域亮度的hud显示方法、系统及电子设备 (HUD display method and system for controlling brightness of backlight area and electronic equipment ) 是由 苗顺平 王涛 于 2020-07-22 设计创作，主要内容包括：本发明公开了一种控制背光区域亮度的HUD显示方法、系统及电子设备,其中方法包括：根据背光灯的分布将所输入图像划分成多个区域,根据每个区域中图像的颜色和分布情况确定每个区域的背光需求,根据所述每个区域的背光需求控制每个区域对应的背光灯,将控制所有背光灯后生成的图像配置为HUD显示；本发明提供的技术方案达到了提升图像对比度的目的,实现了降低背光功耗和散热压力的技术效果。(The invention discloses a HUD display method, a HUD display system and electronic equipment for controlling the brightness of a backlight area, wherein the method comprises the following steps: dividing an input image into a plurality of regions according to the distribution of backlight lamps, determining the backlight requirement of each region according to the color and the distribution condition of the image in each region, controlling the backlight lamp corresponding to each region according to the backlight requirement of each region, and configuring the image generated after controlling all the backlight lamps into HUD display; the technical scheme provided by the invention achieves the purpose of improving the image contrast and achieves the technical effects of reducing the backlight power consumption and the heat dissipation pressure.)

1. A HUD display method of controlling the brightness of a backlight area, the method comprising:

dividing the input image into a plurality of regions according to the distribution of the backlight;

determining the backlight requirement of each area according to the color and the distribution condition of the image in each area;

controlling a backlight lamp corresponding to each region according to the backlight requirement of each region;

and configuring the image generated after controlling all the backlight lamps to be HUD display.

2. The method of claim 1, wherein determining the backlight requirement of each region according to the color and distribution of the image in each region comprises:

if the color of the area is completely black, generating a backlight closing instruction;

otherwise, generating a backlight starting instruction.

3. The method of claim 2, wherein after the generating the turn-on backlight instruction, further comprising:

and determining the brightness of the backlight lamp corresponding to the area according to the color and the distribution condition of the image in the area.

4. The method of claim 1, wherein the controlling the backlight lamp corresponding to each region according to the backlight requirement of each region comprises:

if the generated instruction is a backlight closing instruction, closing the backlight lamp corresponding to the area;

otherwise, the backlight lamp corresponding to the area is turned on.

5. The method of claim 4, wherein after turning on the backlight corresponding to the area, further comprising:

and controlling the brightness of the backlight lamp corresponding to the area.

6. The method of claim 1, wherein after controlling the backlight corresponding to each region according to the backlight requirement of each region, the method further comprises:

and adjusting the brightness of the backlight lamp corresponding to each region according to the temperature of each region.

7. A HUD display system for controlling the brightness of a backlit area, the system comprising:

the controller is used for inputting an image, dividing the input image into a plurality of regions according to the distribution of the backlight lamps, determining the backlight requirement of each region according to the color and the distribution condition of the image in each region, controlling the backlight lamp corresponding to each region according to the backlight requirement of each region, and configuring the image generated after controlling all the backlight lamps into HUD display;

an image display system for displaying an image generated after controlling all the backlight lamps;

and the backlight optical component is used for providing backlight brightness and backlight uniformity for the corresponding area of each backlight lamp.

8. A HUD display device for controlling the brightness of a backlight area, the device comprising:

a dividing module for dividing the input image into a plurality of regions according to the distribution of the backlight;

the determining module is used for determining the backlight requirement of each area according to the color and the distribution condition of the image in each area;

the control module is used for controlling the backlight lamp corresponding to each region according to the backlight requirement of each region;

and the configuration module is used for configuring the image generated after controlling all the backlight lamps into HUD display.

9. A computer-readable storage medium storing computer instructions for causing a computer to execute a HUD display method of controlling the brightness of a backlight area according to any one of claims 1 to 6.

10. An electronic device, characterized in that the electronic device comprises: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to cause the at least one processor to perform a HUD display method of controlling the brightness of a backlight area as claimed in any one of claims 1 to 6.

Technical Field

The invention relates to the field of image display and backlight systems, in particular to a HUD display method and system for controlling the brightness of a backlight area and electronic equipment.

Background

In the field of HUD images and lighting, how to improve the contrast of images and reduce lighting power consumption is a problem that all HUD products must face.

With the development of LED lighting technology, the backlight brightness is improved, but the brightness requirement of HUD is still met, and the pressure of heat dissipation is still faced. Under high brightness, the contrast ratio cannot be further improved due to the limitation of the existing LCD/TFT/DLP/LCOS imaging principles and the like.

Disclosure of Invention

The invention mainly aims to provide a HUD display method, a HUD display system and an electronic device for controlling the brightness of a backlight area, so as to solve the problems of low image contrast, high backlight power consumption and high heat dissipation pressure.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a HUD display method of controlling luminance of a backlight area, the method comprising:

dividing the input image into a plurality of regions according to the distribution of the backlight;

determining the backlight requirement of each area according to the color and the distribution condition of the image in each area;

controlling a backlight lamp corresponding to each region according to the backlight requirement of each region;

and configuring the image generated after controlling all the backlight lamps to be HUD display.

Optionally, the determining the backlight requirement of each region according to the color and distribution of the image in each region includes:

if the color of the area is completely black, generating a backlight closing instruction;

otherwise, generating a backlight starting instruction.

Further, after the generating the backlight turning-on instruction, the method further includes:

and determining the brightness of the backlight lamp corresponding to the area according to the color and the distribution condition of the image in the area.

Optionally, the controlling the backlight lamp corresponding to each region according to the backlight requirement of each region includes:

if the generated instruction is a backlight closing instruction, closing the backlight lamp corresponding to the area;

otherwise, the backlight lamp corresponding to the area is turned on.

Further, after the backlight lamp corresponding to the region is turned on, the method further includes:

and controlling the brightness of the backlight lamp corresponding to the area.

Optionally, after the controlling the backlight lamp corresponding to each region according to the backlight requirement of each region, the method further includes:

and adjusting the brightness of the backlight lamp corresponding to each region according to the temperature of each region.

According to a second aspect of the present invention there is provided a HUD display system for controlling the brightness of a backlight area, the system comprising:

the controller is used for inputting an image, dividing the input image into a plurality of regions according to the distribution of the backlight lamps, determining the backlight requirement of each region according to the color and the distribution condition of the image in each region, controlling the backlight lamp corresponding to each region according to the backlight requirement of each region, and configuring the image generated after controlling all the backlight lamps into HUD display;

an image display system for displaying an image generated after controlling all the backlight lamps;

and the backlight optical component is used for providing backlight brightness and backlight uniformity for the corresponding area of each backlight lamp.

According to a third aspect of the present invention, there is provided a HUD display device which controls luminance of a backlight area, the device comprising:

a dividing module for dividing the input image into a plurality of regions according to the distribution of the backlight;

the determining module is used for determining the backlight requirement of each area according to the color and the distribution condition of the image in each area;

the control module is used for controlling the backlight lamp corresponding to each region according to the backlight requirement of each region;

and the configuration module is used for configuring the image generated after controlling all the backlight lamps into HUD display.

According to a third aspect of the present invention, there is provided a computer-readable storage medium storing computer instructions for causing a computer to execute a HUD display method of controlling luminance of a backlight area provided in any one of the first aspects.

According to a fourth aspect of the present invention, there is provided an electronic apparatus comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executable by the at least one processor to cause the at least one processor to perform a HUD display method of controlling the brightness of a backlight area as provided in any one of the first aspect.

In the embodiment of the invention, the input image is divided into a plurality of areas according to the distribution of the backlight lamps, the backlight requirement of each area is determined according to the color and the distribution condition of the image in each area, the backlight lamp corresponding to each area is controlled according to the backlight requirement of each area, and finally, the image generated after all the backlight lamps are controlled is configured to be HUD for display, so that the aim of improving the image contrast is achieved, and the technical effects of reducing the backlight power consumption and the heat dissipation pressure are realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic flow chart of a HUD display method according to an embodiment of the present invention;

FIG. 2 is a diagram of a HUD display system architecture according to an embodiment of the present invention;

FIG. 3 is a block diagram of an image display system according to an embodiment of the present invention;

FIG. 4 is a block diagram of an image analysis system according to an embodiment of the present invention;

FIG. 5 is a block diagram of a backlight control system according to an embodiment of the present invention;

fig. 6 is a diagram of a backlight distribution provided by an embodiment of the invention;

FIG. 7 is a diagram illustrating an example of image partitioning for an image analysis system according to an embodiment of the present invention;

FIG. 8 is a diagram illustrating an example of controlling the brightness of a backlight area according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of controlling the brightness of a backlight area according to an embodiment of the present invention;

FIG. 10 is a block diagram of a HUD display device according to an embodiment of the present invention;

fig. 11 is a block diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "mounted", "disposed", "provided", "connected" and "sleeved" should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

With the development of LED lighting technology, the backlight brightness is improved, but the brightness requirement of HUD is still met, and the pressure of heat dissipation is still faced. Under high brightness, the contrast ratio cannot be further improved due to the limitation of the existing LCD/TFT/DLP/LCOS imaging principles and the like.

In order to solve the above problem, according to an embodiment of the present invention, there is provided a HUD display method of controlling luminance of a backlight area, as shown in fig. 1, the method including steps S101 to S104 as follows:

step S101, dividing an input image into a plurality of areas according to the distribution of backlight lamps;

step S102, determining the backlight requirement of each area according to the color and the distribution condition of the image in each area;

step S103, controlling a backlight lamp corresponding to each region according to the backlight requirement of each region;

step S104 configures the image generated after controlling all the backlight lamps as a HUD display.

Specifically, the determining the backlight requirement of each region according to the color and distribution of the image in each region includes:

if the color of the area is completely black, generating a backlight closing instruction;

otherwise, generating a backlight starting instruction.

After the generating of the backlight starting instruction, the method further comprises:

and determining the brightness of the backlight lamp corresponding to the area according to the color and the distribution condition of the image in the area.

Specifically, the controlling the backlight lamp corresponding to each region according to the backlight requirement of each region includes:

if the generated instruction is a backlight closing instruction, closing the backlight lamp corresponding to the area; for example, when the color of the region is completely black, the backlight corresponding to the region is turned off, the backlight in the HUD black background backlight lamp set is not light-tight, and black does not pass through completely, so that the brightness value of the backlight when the color of the region is completely black is reduced, the contrast of an image is improved, and the backlight power consumption and the heat dissipation pressure are reduced;

otherwise, the backlight lamp corresponding to the area is turned on.

After the backlight lamp corresponding to the area is turned on, the method further comprises the following steps:

and controlling the brightness of the backlight lamp corresponding to the area.

Specifically, after the controlling the backlight lamp corresponding to each region according to the backlight requirement of each region, the method further includes:

and adjusting the brightness of the backlight lamp corresponding to each region according to the temperature of each region.

There is also provided, in accordance with an embodiment of the present invention, a HUD display system for controlling the brightness of a backlight area, the architecture diagram of which is shown in fig. 2, the system including:

the controller 21 is configured to input an image, divide the input image into a plurality of regions according to distribution of the backlight lamps, determine a backlight requirement of each region according to a color and a distribution condition of the image in each region, control the backlight lamp corresponding to each region according to the backlight requirement of each region, and configure an image generated after controlling all the backlight lamps into HUD display;

an image display system 22 for displaying an image generated after controlling all the backlight lamps;

backlight optics 23 for providing backlight brightness and backlight uniformity to the corresponding regions of each backlight.

Wherein the controller 21 includes:

a display control unit 211 for inputting images and controlling the overall system, which may include a CPU, a GPU, an MCU, and other chips;

the image analysis system 212 is used for dividing the input image into a plurality of areas according to the distribution of the backlight lamps and determining the backlight requirement of each area according to the color and the distribution condition of the image in each area;

a backlight control system 213, configured to control the backlight lamp corresponding to each region according to the backlight requirement of each region.

The display control unit 211 is respectively connected with the image display system 22, the image analysis system 212, the backlight control system 213 and the backlight optical component 23, wherein the backlight optical component 23 is a structural component and may not be connected with the display control unit 211 according to a specific scheme; the image analysis system 212 is connected to the backlight control system 213, and specifically, in the case that the display control unit 211 has sufficient calculation capability, the calculation of the image analysis can be directly completed without additionally configuring an image analysis chip, and at this time, the image analysis system 212 may be built in the display control unit 211 without affecting the implementation of the HUD display system.

Specifically, the display control unit 211 is responsible for image input and overall system control, and may be a CPU, a GPU, an MCU, or other chip schemes.

The image display system 22 is shown in fig. 3, and comprises an image driving chip 221 and a display module 222, wherein the image driving chip 221 is connected to the display control unit 211 and the display module 222, respectively, and the display module 222 may be a TFT, an LCD, a DLP, an LCOS, or the like.

The image analysis system 212 is shown in fig. 4, and comprises an image analysis chip 2121 and a buffer/memory 2122, wherein the image analysis chip 2121 is connected to the display control unit 211, the backlight control system 213, and the buffer/memory 2122, respectively. The cache/memory 2122 is optional and can be set according to different choices of a specific scheme; when the display control unit 211 can complete the operation of image analysis, the image analysis system 212 may be integrated within the display control unit 211.

The display control unit 211 inputs the image to the image analysis system 212, and the image analysis system 212 determines the backlight requirements, including determining which areas need to have backlight on and how high brightness on, and sends the backlight requirements to the backlight control system 213.

As shown in fig. 5, the backlight control system 213 includes a backlight control chip 2131, a backlight lamp set 2132 and a temperature sensor 2133, where the backlight control chip 2131 is connected to the display control unit 211, the backlight lamp set 2132 and the temperature sensor 2133 respectively; the backlight control chip 2131 is connected with the backlight lamp group 2132 to control the on/off and the brightness level of each backlight lamp, and can flexibly adjust the brightness of each lamp according to the difference of different backlight lamps to meet the requirement of brightness consistency; the temperature sensor 2133 is used for sensing the temperature of the backlight lamp set 2132, the backlight control chip 2131 dynamically adjusts the brightness of the backlight according to different temperatures, when the temperature is too high and danger is easily caused, the brightness is reduced to reduce the temperature, the safety of the backlight system is protected, the temperature sensor 2133 is optional, and whether the temperature sensor is arranged or not can be selected according to different specific schemes.

The backlight set 2132 is composed of a set of backlights, and the distribution diagram is shown in fig. 6, and may be arranged in a rectangular manner in the figure, or may be arranged in other manners, such as a hexagonal arrangement, etc.; the backlight lamp can be an LED lamp, and can also be other lighting schemes, such as COB, laser and the like. The present invention does not limit the specific arrangement and control manner of the backlight and the type of the display module 222 (TFT/LCD/DLP/LCOS, etc.), and it should be noted that any scenario in which the final purpose is to achieve higher contrast and optimize power consumption by controlling the brightness of the backlight area belongs to the protection scope of the present invention. When the backlight light source selects the scanning mode to realize the illumination function, the switch or the brightness level of the backlight is adjusted when the area is scanned according to different brightness of different areas, which also belongs to the protection scope of the invention.

The backlight optical component 23 includes one or more optical film layers, lenses, concave mirrors, etc. for providing backlight brightness and backlight uniformity to the corresponding region of each backlight.

The specific implementation principle of the HUD display system provided by the embodiment of the invention is as follows: the image analysis system 212 divides the input image data into separate areas according to the distribution of the backlight lamp groups 2132 in the backlight control system 213, as shown in fig. 7;

the image analysis system 212 analyzes the image of each region, and sends the backlight requirement obtained by the analysis to the backlight control system 213, if the color of the region is completely black, the backlight control system 213 turns off the backlight corresponding to the region, otherwise, the brightness of the backlight is determined according to the color and distribution condition inside the image, and the result is shown in fig. 8;

when an image is input into the HUD display system, the image display system 22 controls the image output to the display module 222, the image analysis system 212 analyzes the color and distribution inside the image, and sends the backlight requirement to the backlight control system 213 according to the distribution of the non-black area, and the backlight control system 213 controls the on/off and brightness of each backlight in the backlight lamp set 2132, thereby displaying the image, as shown in fig. 9.

The HUD display system for controlling the brightness of the backlight area provided by the embodiment of the invention dynamically controls the backlight on-off and the brightness level by analyzing the brightness distribution of the image, thereby improving the display contrast of the HUD, reducing the backlight power consumption and the heat dissipation pressure of the HUD, and being widely applied to display and backlight application scenes such as WHUD, ARHUD, projectors, vehicle screens, instrument screens and the like.

From the above description, it can be seen that the present invention achieves the following technical effects:

the input image is divided into a plurality of areas according to the distribution of the backlight lamps, the backlight requirement of each area is determined according to the color and the distribution condition of the image in each area, the backlight lamp corresponding to each area is controlled according to the backlight requirement of each area, finally, the image generated after all the backlight lamps are controlled is configured to be HUD for display, when the area is completely black, the backlight lamp corresponding to the area is closed, the backlight lamps in the HUD black background backlight lamp set are not light-tight, the black color does not pass through completely, the brightness value of the backlight lamps when the area is completely black is reduced, the purpose of improving the image contrast is achieved, and the technical effects of reducing the backlight power consumption and the heat dissipation pressure are achieved.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.

According to an embodiment of the present invention, there is also provided a HUD display device for controlling luminance of a backlight area for implementing the above HUD display method for controlling luminance of a backlight area, as shown in fig. 10, the device including:

a dividing module 31 for dividing the input image into a plurality of regions according to the distribution of the backlight;

a determining module 32, configured to determine a backlight requirement of each region according to the color and distribution of the image in each region;

a control module 33, configured to control a backlight lamp corresponding to each region according to the backlight requirement of each region;

and a configuration module 34, configured to configure the image generated after controlling all the backlight lamps to a HUD display.

An embodiment of the present invention provides an electronic device, as shown in fig. 11, the electronic device includes one or more processors 41 and a memory 42, and one processor is taken as an example in fig. 11.

The controller may further include: an input device 43 and an output device 44.

The processor 41, the memory 42, the input device 43 and the output device 44 may be connected by a bus or other means, and the bus connection is exemplified in fig. 11.

The processor 41 may be a Central Processing Unit (CPU). The processor 41 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations thereof. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 42, which is a non-transitory computer readable storage medium, may be used for storing non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the control method in the embodiments of the present invention. The processor 41 executes various functional applications and data processing of the server by running non-transitory software programs, instructions and modules stored in the memory 42, so as to implement the HUD display method for controlling the brightness of the backlight area according to the above method embodiment.

The memory 42 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of a processing device operated by the server, and the like. Further, the memory 42 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 42 may optionally include memory located remotely from processor 41, which may be connected to a network connection device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 43 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the processing device of the server. The output device 44 may include a display device such as a display screen.

One or more modules are stored in the memory 42, which when executed by the one or more processors 41, perform the method as shown in fig. 1.

Those skilled in the art will appreciate that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and the processes of the embodiments of the motor control methods described above can be included when the computer program is executed. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a Random Access Memory (RAM), a Flash Memory (FM), a hard disk (hard disk drive, HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.