CN117095652A - Device and method for improving display effect of vehicle-mounted display screen under strong light irradiation - Google Patents
Device and method for improving display effect of vehicle-mounted display screen under strong light irradiation Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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Abstract
The application relates to a device and a method for improving the display effect of a vehicle-mounted display screen under strong light irradiation, wherein the device comprises a vehicle-mounted display screen, a photoelectric sensor and an FPGA control panel, the vehicle-mounted display screen comprises a liquid crystal panel, a backlight plate and a frame, the vehicle-mounted display screen is divided into a plurality of areas, when strong light is directly irradiated on the vehicle-mounted display screen, the strong light firstly passes through the transparent photoelectric sensor, and the photoelectric sensor senses that the strong light irradiation exists at the corresponding positions in the plurality of areas of the vehicle-mounted display screen, so that the electric signals at the corresponding positions are changed; the changed electric signals output by the photoelectric sensor are analog signals, the analog signals are converted into digital signals which can be processed by the FPGA control board through digital-to-analog conversion, the converted digital signals are transmitted to the FPGA control board, and the FPGA control board is positioned to the corresponding area of the backlight board to enhance the brightness, so that the brightness of the vehicle-mounted display screen is compensated.
Description
Technical Field
The application relates to the technical field of vehicle-mounted display screens, in particular to a device and a method for improving the display effect of a vehicle-mounted display screen under strong light irradiation.
Background
Currently, in-vehicle displays play an important role in modern vehicles and smart trips, which are considered to be the primary vehicle for information interaction and information transfer between the driver and the vehicle. While current in-vehicle displays have some limitations in the application of certain specific scenarios. Such as: when the vehicle-mounted display screen is subjected to strong light direct irradiation, certain reflection and refraction phenomena can be caused, and the acquisition of information on the screen by a driver is influenced. Especially, aiming at key information such as vehicle speed, navigation information, driving state, oil consumption and the like, the phenomenon greatly influences the judgment of a driver on the current situation of the vehicle and the safety of the driver in the driving process of the vehicle.
The prior art in-vehicle display technology has not adequately addressed these reflection and refraction problems. Although some screens employ anti-reflection coatings to combat direct glare, this approach does not completely eliminate the effects of reflection and refraction. In addition, some manufacturers reduce the influence of direct glare by integrally enhancing the display brightness, but this increases the energy consumption, and is very unfriendly to vehicles such as electric vehicles or hybrid vehicles, which have high requirements on the energy utilization efficiency.
Disclosure of Invention
The application aims to provide a device and a method for improving the display effect of a vehicle-mounted display screen under strong light irradiation, and aims to solve the technical problems of at least reducing reflection and refraction of the vehicle-mounted display screen, improving the definition and readability of information on the screen, improving the visual experience of a driver, reducing the interference to the driving process, improving the safety of the driving process and reducing the energy consumption.
In order to achieve the above purpose, the application provides a device for improving the display effect of a vehicle-mounted display screen under strong light irradiation, which comprises the vehicle-mounted display screen, a photoelectric sensor and an FPGA control panel, wherein the vehicle-mounted display screen comprises a liquid crystal panel, a backlight plate and a frame, and the liquid crystal panel is covered above the backlight plate; the frame is wrapped on the peripheral walls of the liquid crystal panel and the backlight plate; the photoelectric sensor covers the upper part of the liquid crystal panel; the vehicle-mounted display screen is divided into a plurality of areas, when strong light is directly irradiated on the vehicle-mounted display screen, the strong light irradiates corresponding positions in the plurality of areas of the vehicle-mounted display screen, and the electric signals of the corresponding positions are changed; the changed electric signals output by the photoelectric sensor are analog signals, the analog signals are converted into digital signals which can be processed by the FPGA control board through digital-to-analog conversion, the converted digital signals are transmitted to the FPGA control board, and the FPGA control board is positioned to the corresponding area of the backlight board to enhance the brightness, so that the brightness of the vehicle-mounted display screen is compensated.
Preferably, the signal output by the photoelectric sensor does not directly act on the backlight plate, but is converted into a coefficient matrix according to the brightness perception capability of human eyes and then weighted to the backlight brightness value at the previous moment.
Preferably, the FPGA control board specifically includes a data processing module and a driving IC, where the data processing module is configured to generate a weighting coefficient according to the digital signal, and weight the weighting coefficient and an initial value of the backlight data to output the weighted backlight data; the driving IC receives the weighted backlight data output by the data processing module and generates PWM (pulse Width modulation) signals for controlling the backlight brightness.
Preferably, the data processing module includes a coefficient matrix generating module, where the coefficient matrix generating module is configured to receive the digital signal and generate a weighting coefficient;
the specific process of weighting is as follows:
assume that the original data matrix of illumination is L:
；
assume that the luminance matrix of the in-vehicle display screen at this time is B:
；
assuming the coefficient matrix is C, then:
；
assume that the brightness increment matrix required for sensing brightness change isL：
；
The final data matrix a is then:
；
the final data matrix is the data matrix finally sent to the backlight plate; m=1, 2,3 … … i in the final data matrix; n=1, 2,3 … … j; i, j is screen resolution;
wherein floor represents a rounding down;representing Hadamard product operation;
floor (C) represents a weighting coefficient matrix, a=bfloor (C) +DeltaL is the weighting process, and the finally output data matrix A is the weighting data and is sent to the display screen for display.
Preferably, the data processing module further comprises a partition backlight calculation module, and the partition backlight calculation module receives the weighting coefficient and weights the weighting coefficient with an initial value of the backlight data to output weighted data.
Preferably, the data processing module further includes a dynamic control module, where the dynamic control module is configured to configure a register value required by the driving IC, and control the driving IC to read and write data, so that the driving IC can normally operate in an expected manner.
Preferably, the dynamic control module specifically includes a driving IC initialization configuration module and a data read-write control module, where the driving IC initialization configuration module is used for initializing and configuring the driving IC and configuring a register value required by the driving IC; the data read-write control module is used for controlling the drive IC to read and write data so that the drive IC can work normally according to an expected mode.
Preferably, the device for improving the display effect of the vehicle-mounted display screen under strong light irradiation further comprises an upper computer and an LVDS decoding chip, wherein the upper computer is used for outputting video data in a format of LVDS signals (low voltage differential signaling), and the LVDS decoding chip is used for receiving the video data output in the format of the LVDS signals and converting the video data into VGA video data streams.
Preferably, the device for improving the display effect of the vehicle-mounted display screen under strong light irradiation further comprises a data synchronization module, wherein the data synchronization module is used for receiving the VGA video data stream and delaying, and performing time sequence synchronization with the process that the FPGA control board performs weighting on the weighting coefficient and the initial value of the backlight data to output weighted backlight data and the driving IC receives the weighted backlight data and generates a PWM signal for controlling backlight brightness.
Preferably, the device for improving the display effect of the vehicle-mounted display screen under strong light irradiation further comprises a T-con control board, and the data synchronization module is further configured to transmit the synchronized data signal to the T-con control board, so as to drive the liquid crystal molecules of the liquid crystal panel to deflect to complete synchronous display with the backlight plate.
The application also provides a method for improving the display effect of the vehicle-mounted display screen under the strong light irradiation, which uses the device for improving the display effect of the vehicle-mounted display screen under the strong light irradiation to improve the display effect of the vehicle-mounted display screen under the strong light irradiation, and specifically comprises the following steps:
s1, dividing the vehicle-mounted display screen into a plurality of areas, and when strong light is directly irradiated on the vehicle-mounted display screen, firstly passing through a transparent photoelectric sensor, wherein the photoelectric sensor senses that strong light irradiates at corresponding positions in the plurality of areas of the vehicle-mounted display screen, so that electric signals at the corresponding positions are changed;
s2, converting an analog signal output by the photoelectric sensor into a digital signal which can be processed by the FPGA control board through A/D (digital-to-analog) conversion, transmitting the converted digital signal to the FPGA control board, positioning the digital signal to a corresponding area of the backlight board to enhance the brightness, and thus compensating the brightness of the vehicle-mounted display screen.
The application also provides an automobile, which comprises the device for improving the display effect of the vehicle-mounted display screen under the strong light irradiation, or the method for improving the display effect of the vehicle-mounted display screen under the strong light irradiation is used for improving the display effect of the vehicle-mounted display screen under the strong light irradiation.
Advantageous effects
Compared with the prior art, the application has the beneficial effects that:
the device and the method for improving the display effect of the vehicle-mounted display screen under strong light irradiation can effectively reduce reflection and refraction problems, improve the definition and the readability of information on the screen, improve the visual experience of a driver, reduce the interference to the driving process and improve the safety of the driving process. At the same time, the energy consumption is reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and do not limit the application.
Fig. 1 is a schematic view of the overall structure of the device for improving the display effect of the vehicle-mounted display screen under strong light irradiation.
Fig. 2 is a schematic diagram of a video signal processing flow of the present application.
Detailed Description
The present application is described in more detail below to facilitate an understanding of the present application.
As shown in fig. 1 and fig. 2, the device for improving the display effect of the vehicle-mounted display screen under strong light irradiation according to the present application includes a vehicle-mounted display screen, a photoelectric sensor 4 and an FPGA (Field Programmable Gate Array ) control board, wherein the vehicle-mounted display screen includes a liquid crystal panel 1, a backlight plate 2 and a frame 3, and the liquid crystal panel 1 is covered above the backlight plate 2; the frame 3 is wrapped on the peripheral walls of the liquid crystal panel 1 and the backlight plate 2; the photoelectric sensor 4 is covered above the liquid crystal panel 1; the vehicle-mounted display screen is divided into a plurality of areas, when strong light is directly irradiated on the vehicle-mounted display screen, the strong light irradiates corresponding positions in the plurality of areas of the vehicle-mounted display screen, and the electric signals of the corresponding positions are changed; the signal output by the photoelectric sensor is an analog signal, the analog signal is required to be converted into a digital signal which can be processed by the FPGA control board through A/D (digital-to-analog) conversion for facilitating the later processing of the signal, the digital signal after conversion is transmitted to the FPGA control board, and the digital signal is positioned to the corresponding area of the backlight board to enhance the brightness, so that the brightness of the vehicle-mounted display screen is compensated.
Aiming at the improvement method of the display effect, the application realizes the improvement of the display effect under the condition of saving energy consumption, and is realized by utilizing the local dimming method of the liquid crystal backlight. The traditional mode is as follows: the application has the innovation that the whole screen of the vehicle-mounted display screen is divided into a plurality of areas, when a certain local position of the screen is subjected to strong light irradiation, the brightness of a backlight area at the corresponding position is only required to be improved, thus not only solving the problems of reflection and refraction under the condition of strong light direct irradiation, but also saving energy consumption.
It should be noted that the signal output by the photosensor cannot directly act on the backlight board, and the signal needs to be converted into a coefficient matrix according to the brightness perception capability of human eyes and then weighted to the backlight brightness value at the previous moment.
In a hardware implementation, a specific video signal processing flow is shown in fig. 2.
When strong light directly irradiates the photoelectric sensor, the electric signal at the corresponding position of the photoelectric sensor changes. The changed electric signals are converted into digital signals which can be processed by the FPGA control panel through analog-digital conversion. After entering the FPGA control panel, the coefficient matrix generating module generates a weighting coefficient, and weights the weighting coefficient and the initial value of the backlight data to output the weighted backlight data. The dynamic control module is used for configuring register values required by the drive IC and simultaneously controlling the reading and writing of data by matching with the data read-write control module so that the drive IC can work normally in an expected mode. The backlight data output at this time is sent to the drive IC, and a PWM (Pulse Width Modulation ) signal for controlling the backlight luminance is generated by the drive IC.
In synchronization with the above process, the upper computer outputs video data in the form of LVDS signals (low voltage differential signaling), and converts the video data into VGA video data streams through the LVDS decoding chip. And delaying in the data synchronization module, performing time sequence synchronization with the previous process, and finally transmitting the synchronized data signal to the T-con control board so as to drive the liquid crystal molecules to deflect to finish synchronous display with the backlight board.
Based on the video signal processing flow, in a specific embodiment, the FPGA control board specifically includes a data processing module and a driving IC, where the data processing module is configured to generate a weighting coefficient according to the digital signal, and weight the weighting coefficient with an initial value of backlight data to output weighted backlight data; the driving IC receives the weighted backlight data output by the data processing module and generates PWM (pulse Width modulation) signals for controlling the backlight brightness.
Preferably, the data processing module includes a coefficient matrix generating module, and the coefficient matrix generating module is configured to receive the digital signal and generate a weighting coefficient.
The liquid crystal display is divided into two parts, one part is a liquid crystal panel for controlling the content of the current display (the liquid crystal panel does not emit light by itself and forms a pattern by controlling the deflection of liquid crystal molecules by voltage), and the other part is a backlight plate, and the brightness of the backlight plate determines the overall brightness of the display screen. The application introduces the currently displayed content data into the backlight and combines the output of the sensor to enhance the visual perception effect, and the specific practice is as follows:
the surface of the liquid crystal panel is covered with transparent photoelectric sensors, and the number and positions of light sensing points of the photoelectric sensors are consistent with the number and positions of pixels on a liquid crystal screen of the liquid crystal panel. When the photoelectric sensor senses strong light irradiation, the voltage output by the photoelectric sensor is changed, and the voltage is captured by the A/D conversion module and converted into a digital signal to obtain an original data matrix (a matrix with the same resolution as that of the vehicle-mounted display screen) of the light irradiation. And (3) carrying out Hadamard product inverse operation on the illuminated original data matrix and the brightness value (the content being displayed by the vehicle-mounted display screen) at the corresponding position of the current vehicle-mounted display screen, and rounding down the obtained quotient matrix to ensure the processing speed, so that a coefficient matrix (the coefficient matrix is not the data finally sent to the backlight plate, and the data finally sent to the backlight plate is calculated as follows) can be obtained.
Also, because the human eye needs to perceive the brightness variation at different light-emitting brightness, the brightness increment is different. Roughly, the relationship can be simplified as a proportional relationship, namely weber's law:l/l=k (where K is a constant and a fixed value), as the luminance increases, the luminance increase required to perceive the luminance change increases, and thus +.>L= L/>K, whereinL is the current background brightness, < >>L is the brightness increment that human eyes can perceive brightness change, delta L is also a matrix because the background brightness of different positions on the vehicle-mounted display screen is different (mainly caused by reflection here), and in order to ensure the display content to be clear, a matrix addition is also needed to be carried out on the coefficient matrix and the delta L matrix, so that a final data matrix is obtained. The specific process is as follows:
assume that the original data matrix of illumination is L:
assume that the luminance matrix of the vehicle-mounted display screen at this time is B (i.e., the luminance matrix of the content being displayed by the vehicle-mounted display screen maps, and the mapping relationship is an electro-optical transfer function (EOTF)):
assuming the coefficient matrix is C, then:
assume that the brightness increment matrix required to perceive a brightness change is:L
the final data matrix is then:
the matrix is the data matrix finally fed to the backlight (m=1, 2,3 … … i; n=1, 2,3 … … j; i, j is screen resolution in the above matrix);
the floor represents downward rounding, because floating point number operation consumes a large amount of resources of the FPGA and delay is increased, and floating point number is subjected to downward rounding;
representing Hadamard product operation;
the floor (C) matrix is a weighting coefficient matrix, the DeltaL matrix is called a Weber delta matrix, and plays a role in compensation (refer to Weber's law for compensating just noticeable differences in human brightness perception. Because of B)The enhancement effect of floor (C) is equivalent to ambient light, and cannot satisfy the perception of human eyes on the display screen, so delta L is needed to be increased to enhance the brightness again. A=b->floor (C) +DeltaL is the weighting process, and the finally output data matrix A is the weighting data and is sent to the display screen for display.
Note that: because the original data of the illumination after the A/D conversion is floating point number, the reflection light of the screen is weakened compared with the light directly irradiated on the screen by strong light, and the reflection light can be just matched with the reflection light intensity to avoid excessive enhancement due to the reason of rounding error after the operation. Thus, the above calculation method is adopted without directly using L +As a matrix that is ultimately fed out to the backlight.
Preferably, the data processing module further comprises a partition backlight calculation module, and the partition backlight calculation module receives the weighting coefficient and weights the weighting coefficient with an initial value of the backlight data to output weighted data.
Preferably, the data processing module further includes a dynamic control module, where the dynamic control module is configured to configure a register value required by the driving IC, and control the driving IC to read and write data, so that the driving IC can normally operate in an expected manner.
Preferably, the dynamic control module specifically includes a driving IC initialization configuration module and a data read-write control module, where the driving IC initialization configuration module is used for initializing and configuring the driving IC and configuring a register value required by the driving IC; the data read-write control module is used for controlling the drive IC to read and write data so that the drive IC can work normally according to an expected mode.
Preferably, the device for improving the display effect of the vehicle-mounted display screen under strong light irradiation further comprises an upper computer and an LVDS decoding chip, wherein the upper computer is used for outputting video data in a format of LVDS signals (low voltage differential signaling), and the LVDS decoding chip is used for receiving the video data output in the format of the LVDS signals and converting the video data into VGA video data streams.
Preferably, the device for improving the display effect of the vehicle-mounted display screen under strong light irradiation further comprises a data synchronization module, wherein the data synchronization module is used for receiving the VGA video data stream and delaying, and performing time sequence synchronization with the process that the FPGA control board performs weighting on the weighting coefficient and the initial value of the backlight data to output weighted backlight data and the driving IC receives the weighted backlight data and generates a PWM signal for controlling backlight brightness.
Preferably, the device for improving the display effect of the vehicle-mounted display screen under strong light irradiation further comprises a T-con control board, and the data synchronization module is further configured to transmit the synchronized data signal to the T-con control board, so as to drive the liquid crystal molecules of the liquid crystal panel to deflect to complete synchronous display with the backlight plate.
The application also provides a method for improving the display effect of the vehicle-mounted display screen under strong light irradiation, which comprises the following steps:
s1, dividing the vehicle-mounted display screen into a plurality of areas, and when strong light is directly irradiated on the vehicle-mounted display screen, firstly passing through a transparent photoelectric sensor, wherein the photoelectric sensor senses that strong light irradiates at corresponding positions in the plurality of areas of the vehicle-mounted display screen, so that electric signals at the corresponding positions are changed;
s2, converting an analog signal output by the photoelectric sensor into a digital signal which can be processed by the FPGA control board through A/D (digital-to-analog) conversion, transmitting the converted digital signal to the FPGA control board, positioning the digital signal to a corresponding area of the backlight board to enhance the brightness, and thus compensating the brightness of the vehicle-mounted display screen.
The application also provides an automobile, which comprises the device for improving the display effect of the vehicle-mounted display screen under the strong light irradiation, or the method for improving the display effect of the vehicle-mounted display screen under the strong light irradiation is used for improving the display effect of the vehicle-mounted display screen under the strong light irradiation.
The strong light refers to sunlight or light rays with brightness similar to that of the sunlight.
The PWM (pulse width modulation) signal according to the present application adjusts the brightness of the screen by controlling the period of time for periodically turning on and off the backlight, for example, displaying 50% of the brightness, that is, 50% of the time for turning on the backlight and 50% of the time for turning off the backlight in each short period of time, the feeling that the screen appears to the naked eye will always be bright at 50% of the brightness due to the persistence effect of vision of the human eye, but in reality it will be flash on-off at 100% of the brightness.
Studies have shown that the brightness increase required for the human eye to perceive a brightness change at different luminescent brightnesses is different. Roughly, the relationship can be simplified as a proportional relationship, namely weber's law: Δl/l=k, and as the luminance increases, the luminance increase required to perceive the luminance change increases. For the application, the human eyes have different sensing capacities for the change under different brightness conditions, and meanwhile, the brightness change of the LED light-emitting chip on the backlight plate and the voltage value are not linear, namely, the voltage value is increased by one time, the brightness is not increased by one time, and the specific function (electro-optical modulation function) relation is obeyed. Therefore, the coefficient matrix satisfying the above conditions needs to be weighted by quantifying the light rays with different intensities in consideration of the above two factors.
The key points to be protected by the application include, but are not limited to, the improvement method of the display effect and the hardware implementation thereof.
The foregoing describes preferred embodiments of the present application, but is not intended to limit the application thereto. Modifications and variations to the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the application.
Claims (10)
1. The device for improving the display effect of the vehicle-mounted display screen under the strong light irradiation is characterized by comprising a vehicle-mounted display screen, a photoelectric sensor and an FPGA control panel, wherein the vehicle-mounted display screen comprises a liquid crystal panel, a backlight plate and a frame, and the liquid crystal panel is covered above the backlight plate; the frame is wrapped on the peripheral walls of the liquid crystal panel and the backlight plate; the photoelectric sensor covers the upper part of the liquid crystal panel; the vehicle-mounted display screen is divided into a plurality of areas, when strong light is directly irradiated on the vehicle-mounted display screen, the strong light irradiates corresponding positions in the plurality of areas of the vehicle-mounted display screen, and the electric signals of the corresponding positions are changed; the changed electric signals output by the photoelectric sensor are analog signals, the analog signals are converted into digital signals which can be processed by the FPGA control board through digital-to-analog conversion, the converted digital signals are transmitted to the FPGA control board, and the FPGA control board is positioned to the corresponding area of the backlight board to enhance the brightness, so that the brightness of the vehicle-mounted display screen is compensated.
2. The apparatus for improving display effect of vehicle-mounted display screen under strong light according to claim 1, wherein the signal outputted from the photosensor does not directly act on the backlight panel, but converts the signal into coefficient matrix according to brightness perception capability of human eyes and then weights to backlight brightness value at the previous moment.
3. The device for improving the display effect of the vehicle-mounted display screen under strong light irradiation according to claim 1, wherein the FPGA control board specifically comprises a data processing module and a driving IC, the data processing module is configured to generate a weighting coefficient according to the digital signal, and weight the weighting coefficient with an initial value of backlight data to output weighted backlight data; the driving IC receives the weighted backlight data output by the data processing module and generates a PWM signal for controlling the backlight brightness.
4. The apparatus for improving a display effect of a vehicle-mounted display screen under intense light according to claim 3, wherein the data processing module comprises a coefficient matrix generating module for receiving the digital signal and generating a weighting coefficient.
5. The apparatus for improving a display effect of a vehicle-mounted display screen under strong light irradiation according to claim 3, wherein the data processing module further comprises a partition backlight calculation module, and the partition backlight calculation module receives the weighting coefficient and weights the weighting coefficient with an initial value of backlight data to output weighted data.
6. A device for improving a display effect of a vehicle-mounted display screen under strong light irradiation according to claim 3, wherein the data processing module further comprises a dynamic control module, the dynamic control module is used for configuring register values required by the driving IC and controlling the driving IC to read and write data so that the driving IC can work normally in an expected manner.
7. The device for improving the display effect of the vehicle-mounted display screen under strong light irradiation according to claim 6, wherein the dynamic control module specifically comprises a driving IC initialization configuration module and a data read-write control module, and the driving IC initialization configuration module is used for initializing and configuring the driving IC and configuring a register value required by the driving IC; the data read-write control module is used for controlling the drive IC to read and write data so that the drive IC can work normally according to an expected mode.
8. The device for improving the display effect of the vehicle-mounted display screen under the strong light irradiation according to claim 1, wherein the device for improving the display effect of the vehicle-mounted display screen under the strong light irradiation further comprises a host computer and an LVDS decoding chip, wherein the host computer is used for outputting video data in a format of LVDS signals, and the LVDS decoding chip is used for receiving the video data output in the format of the LVDS signals and converting the video data into a VGA video data stream.
9. The apparatus for improving a display effect of a vehicle-mounted display screen under strong light irradiation according to claim 3, wherein the apparatus for improving a display effect of a vehicle-mounted display screen under strong light irradiation further comprises a data synchronization module for receiving the VGA video data stream and delaying, and performing timing synchronization with a process of weighting the weighted backlight data by the FPGA control board with the initial value of the backlight data and outputting the weighted backlight data by the weighting coefficient and the driving IC receiving the weighted backlight data and generating the PWM signal for controlling the backlight brightness.
10. The apparatus for improving a display effect of an on-vehicle display screen under intense light according to claim 9, wherein the apparatus for improving a display effect of an on-vehicle display screen under intense light further comprises a T-con control board, and the data synchronization module is further configured to transmit the synchronized data signal to the T-con control board, so as to drive the liquid crystal molecules of the liquid crystal panel to deflect to complete synchronous display with the backlight.
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| CN202311353000.5A CN117095652A (en) | 2023-10-19 | 2023-10-19 | Device and method for improving display effect of vehicle-mounted display screen under strong light irradiation |
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| CN202311353000.5A CN117095652A (en) | 2023-10-19 | 2023-10-19 | Device and method for improving display effect of vehicle-mounted display screen under strong light irradiation |
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| CN202311353000.5A Pending CN117095652A (en) | 2023-10-19 | 2023-10-19 | Device and method for improving display effect of vehicle-mounted display screen under strong light irradiation |
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