CN111640399B - Liquid crystal display module and brightness adjusting method, equipment, test board and medium thereof - Google Patents

Liquid crystal display module and brightness adjusting method, equipment, test board and medium thereof Download PDF

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Publication number
CN111640399B
CN111640399B CN202010478517.7A CN202010478517A CN111640399B CN 111640399 B CN111640399 B CN 111640399B CN 202010478517 A CN202010478517 A CN 202010478517A CN 111640399 B CN111640399 B CN 111640399B
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brightness
liquid crystal
crystal display
control signal
display
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CN111640399A (en
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余龙江
郭向茹
常伟
周忠伟
毛林山
袁新艳
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Huizhou Chuangwei Zhixian Technology Co ltd
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Huizhou Chuangwei Zhixian Technology Co ltd
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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
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing

Abstract

The invention discloses a liquid crystal display module and a brightness adjusting method, equipment, a test board and a medium thereof, wherein the brightness adjusting method of the liquid crystal display module comprises the following steps: determining the adjusting range and the adjusting precision of the brightness control signal according to the specification of the liquid crystal display module; inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals; acquiring a plurality of actual display brightness of the liquid crystal display module based on a plurality of brightness control signals; and establishing a corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the corresponding brightness control signals. According to the technical scheme, the accurate adjustment of the brightness of the liquid crystal display module can be realized, and meanwhile, the adjustment of the display brightness of the liquid crystal display module can be realized simply, conveniently and accurately when the brightness gear and specification requirements are changed, so that users and designers can control the brightness effect of the liquid crystal display module more simply, conveniently and accurately, and stable visual effect experience is brought for users.

Description

Liquid crystal display module and brightness adjusting method, equipment, test board and medium thereof
Technical Field
The embodiment of the invention relates to a liquid crystal display technology, in particular to a method, a test board, a system and equipment for adjusting the brightness of a liquid crystal display module.
Background
With the great application in the field of liquid crystal display module mobile phones and the innovation of display technology, people have higher and higher requirements on the uniformity of the brightness of the liquid crystal display module, but due to the difference of manufacturing materials, manufacturing processes and production batches used by the liquid crystal display module, the brightness of different mobile phones is also different even in the same type; the brightness of different machines is different under different use scenes or adjusted by users, and the brightness needs to be accurately adjusted.
The technology used in the market today is to calibrate the brightness of the lcd module when it is shipped. The brightness calibration scheme can only realize the calibration of preset gear or picture brightness; in addition, each preset gear and picture in the calibration process of the liquid crystal display module needs to be calibrated, so that the time consumption is high and the process is complex; meanwhile, if the gear standard or the picture required by design and use changes, the gear standard or the picture needs to be calibrated again, so that the conventional method for adjusting the brightness of the liquid crystal display module is complex.
Disclosure of Invention
The invention provides a liquid crystal display module, a brightness adjusting method, brightness adjusting equipment, a testing board and a medium of the liquid crystal display module, which are used for realizing simple, convenient and accurate adjustment of the brightness of the liquid crystal display modules among liquid crystal display modules and bringing stable visual effect experience to users.
In a first aspect, an embodiment of the present invention provides a method for adjusting brightness of a liquid crystal display module, which is applied to a brightness adjustment test board in a brightness adjustment system of a liquid crystal display module, where the brightness adjustment test board is composed of a brightness detection device, a brightness adjustment test board, and a liquid crystal display module; the brightness adjusting test board is electrically connected with the brightness detection device and the liquid crystal display module respectively; the method for adjusting the brightness of the liquid crystal display module is characterized by comprising the following steps:
determining the adjusting range and the adjusting precision of a brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjusting test board;
inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals;
acquiring a plurality of actual display brightness of the liquid crystal display module based on a plurality of brightness control signals;
and establishing a corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the corresponding brightness control signals.
Optionally, before determining the adjustment range and the adjustment precision of the brightness control signal according to the specification of the liquid crystal display module, the method further includes:
establishing a corresponding relation between a brightness gear and set display brightness according to the use requirements of a user;
establishing a corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the brightness control signal corresponding to the actual display brightness, comprising the following steps:
determining the actual display brightness corresponding to the brightness gear with the minimum set display brightness difference as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness;
determining a brightness control signal corresponding to the target display brightness as a target brightness control signal;
and establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal, wherein the display brightness comprises set display brightness and/or target display brightness.
Optionally, after establishing the corresponding linked list among the brightness level, the display brightness, and the target brightness control signal, the method further includes:
burning the corresponding linked list among the brightness level, the display brightness and the target brightness control signal into an integrated drive circuit of the liquid crystal display module;
or generating a first ID code of a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal;
and burning the first ID code into an integrated drive circuit of the liquid crystal display module, and uploading a corresponding linked list among the brightness level, the display brightness and the target brightness control signal to a cloud storage.
Optionally, establishing a corresponding relationship between the brightness level, the display brightness, and the brightness control signal according to the plurality of actual display brightness and the brightness control signal corresponding to the actual display brightness, includes:
establishing a corresponding linked list between the actual display brightness and the brightness control signal;
burning the corresponding linked list between the actual display brightness and the brightness control signal into an integrated drive circuit of the liquid crystal display module; or generating a second ID code of a corresponding linked list between the actual display brightness and the brightness control signal; burning the second ID code into an integrated drive circuit of the liquid crystal display module, and uploading a corresponding linked list between the actual display brightness and the brightness control signal to a cloud storage;
establishing a corresponding relation between a brightness gear and set display brightness according to the use requirements of a user;
determining the actual display brightness corresponding to the brightness gear with the minimum set display brightness difference as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness;
determining a brightness control signal corresponding to the target display brightness as a target brightness control signal;
and establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal, wherein the display brightness comprises set display brightness and/or target display brightness.
Optionally, inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signal to control the liquid crystal display module to display according to the brightness control signal, including:
and sequentially increasing the brightness control signal to the upper limit value of the adjustment range of the brightness control signal from the lower limit value of the adjustment range of the brightness control signal according to the adjustment precision of the brightness control signal, and inputting a plurality of brightness control signals to the liquid crystal display module to control the liquid crystal display module to display according to the brightness control signal.
In a second aspect, an embodiment of the present invention further provides a method for adjusting brightness of a liquid crystal display module, which is applied to a liquid crystal display module in a brightness adjustment system of a liquid crystal display module, where the brightness adjustment system is composed of a brightness detection device, a brightness adjustment test board, and a liquid crystal display module; the liquid crystal display module comprises a control main board, a liquid crystal display unit and a backlight unit, wherein the integrated drive circuit of the liquid crystal display unit stores the corresponding relation among brightness gears, display brightness and brightness control signals; the method for adjusting the brightness of the liquid crystal display module is characterized by comprising the following steps:
reading the corresponding relation among the brightness gear, the display brightness and the brightness control signal stored in the integrated drive circuit;
determining a target brightness control signal according to the requirements of brightness gears and display brightness;
and driving the backlight unit to emit light by adopting the target brightness control signal so as to light the liquid crystal display unit.
In a third aspect, an embodiment of the present invention further provides a test board for adjusting brightness, including:
the adjustment determining module is used for determining the adjustment range and the adjustment precision of the brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjustment test board;
the brightness control signal input module is used for inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals;
the actual display brightness acquisition module is used for acquiring a plurality of actual display brightness of the liquid crystal display module based on the plurality of brightness control signals;
and the corresponding relation establishing module is used for establishing the corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the brightness control signal corresponding to the actual display brightness.
In a fourth aspect, an embodiment of the present invention further provides a liquid crystal display module, including a control motherboard, a liquid crystal display unit, and a backlight unit, where a corresponding relationship among a brightness level, display brightness, and a brightness control signal is stored in an integrated driving circuit of the liquid crystal display unit; characterized in that, the liquid crystal display module still includes:
the corresponding relation reading module is used for reading the corresponding relation among the brightness gear, the display brightness and the brightness control signal stored in the integrated drive circuit;
the target brightness control signal determining module is used for determining a target brightness control signal according to the brightness gear and the display brightness requirement;
and the driving module is used for driving the backlight unit to emit light by adopting the target brightness control signal so as to light the liquid crystal display unit.
In a fifth aspect, an embodiment of the present invention further provides a device for adjusting brightness of a liquid crystal display module, including a memory, a processor, and a computer program stored in the memory and running on the processor, where the processor executes the program to implement the method for adjusting brightness of a liquid crystal display module according to the first aspect.
In a sixth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the brightness adjustment method for the liquid crystal display module according to the first aspect.
According to the liquid crystal display module and the brightness adjusting method, the device, the test board and the medium thereof provided by the embodiment of the invention, the adjusting range and the adjusting precision of the brightness control signal are determined according to the specification of the liquid crystal display module, then a plurality of brightness control signals are input into the liquid crystal display module according to the adjusting range and the adjusting precision of the brightness control signal, the liquid crystal display module is controlled to display according to the brightness control signal, then a plurality of actual display brightness of the liquid crystal display module based on the plurality of brightness control signals are obtained, and finally the corresponding relation among the brightness gear, the display brightness and the brightness control signal is established according to the plurality of actual display brightness and the corresponding brightness control signal thereof, so on one hand, the accurate control of the brightness of the liquid crystal display module is realized according to the adjusting precision of the brightness control signal; on the other hand, by establishing the corresponding relation among the brightness gears, the display brightness and the brightness control signal, any liquid crystal display module is matched with any main board, and a user can accurately adjust the brightness of each gear; on the other hand, when the brightness gear and the specification requirement are changed, the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized; therefore, users and designers can more simply, conveniently and accurately control the brightness effect of the liquid crystal display module, and finally stable visual effect experience is brought to terminal users.
Drawings
Fig. 1 is a schematic structural diagram of a system for adjusting brightness of a liquid crystal display module according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for adjusting brightness of a liquid crystal display module according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for adjusting brightness of a liquid crystal display module according to a second embodiment of the present disclosure;
FIG. 4 is a schematic flow chart illustrating another method for adjusting brightness of a liquid crystal display module according to a second embodiment of the present invention;
fig. 5 is a schematic flowchart illustrating a method for adjusting brightness of a liquid crystal display module according to a third embodiment of the present invention;
fig. 6 is a schematic flow chart illustrating a method for adjusting brightness of a liquid crystal display module according to a fourth embodiment of the present invention;
fig. 7 is a schematic structural view of a test board for adjusting luminance according to a fifth embodiment of the present invention;
fig. 8 is a schematic structural view of a liquid crystal display module according to a sixth embodiment of the present invention;
fig. 9 is a schematic structural diagram of a luminance adjusting apparatus of a liquid crystal display module according to a seventh embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
In the prior art, the brightness calibration is carried out when the liquid crystal display module leaves a factory, and the brightness calibration scheme can only realize the calibration of preset gear or picture brightness; in addition, each preset gear and picture in the calibration process of the liquid crystal display module needs to be calibrated, so that the time consumption is high and the process is complex; meanwhile, if the gear standard or the picture required by design and use is changed, the gear standard or the picture can be realized only by re-calibrating, so that the conventional method for adjusting the brightness of the liquid crystal display module is complex.
Based on the technical problem, the embodiment of the invention provides a method for adjusting the brightness of a liquid crystal display module, which comprises the steps of determining the adjustment range and the adjustment precision of a brightness control signal according to the specification of the liquid crystal display module; inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals; acquiring a plurality of actual display brightness of the liquid crystal display module based on a plurality of brightness control signals; and establishing a corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the corresponding brightness control signals. By adopting the technical scheme, on one hand, the accurate control of the brightness of the liquid crystal display module is realized according to the adjusting precision of the brightness adjusting signal; on the other hand, by establishing the corresponding relation among the brightness gears, the display brightness and the brightness control signal, any liquid crystal display module is matched with any main board, and a user can accurately adjust the brightness of each gear; on the other hand, the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized when the brightness gear and specification requirements are changed; therefore, users and designers can more simply, conveniently and accurately control the brightness effect of the liquid crystal display module, and finally stable visual effect experience is brought to terminal users.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Example one
Fig. 1 is a schematic structural diagram of a system for adjusting brightness of a liquid crystal display module according to an embodiment of the present invention, fig. 2 is a schematic flow chart of a method for adjusting brightness of a liquid crystal display module according to an embodiment of the present invention, as shown in fig. 1, the method for adjusting brightness of a liquid crystal display module according to an embodiment of the present invention is applied to a brightness adjustment test board in the system for adjusting brightness of a liquid crystal display module shown in fig. 1, as shown in fig. 1, the brightness adjustment test board includes a brightness detection device 10, a brightness adjustment test board 20 and a liquid crystal display module 30, and the brightness adjustment test board 20 is electrically connected to the brightness detection device 10 and the liquid crystal display module 20, respectively. The brightness adjustment method of the lcd module shown in fig. 2 is applied to a brightness adjustment test board in a brightness adjustment system of the lcd module. Specifically, as shown in fig. 2, the method for adjusting the brightness of the liquid crystal display module according to the embodiment of the present invention includes:
and S110, determining the adjusting range and the adjusting precision of the brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjusting test plate.
Specifically, the specification of the liquid crystal display module can include the brightness display specification of the liquid crystal display module, the brightness display specification of the liquid crystal display module is related to the display brightness which can be realized by the liquid crystal display module, the liquid crystal display module is controlled by the brightness control signal to display, the display brightness of the liquid crystal display module is controlled by the brightness control signal with different sizes and is different, therefore, the adjusting range of the brightness control signal is required to be determined according to the specification of the liquid crystal display module, and the display brightness corresponding to the lower limit value and the upper limit value of the brightness control signal is ensured to be the display brightness which can be realized by the liquid crystal display module.
The specification of the brightness adjusting test board is the component specification of the brightness adjusting test board, specifically the component specification for providing the brightness control signal, and the adjusting precision of the brightness control signal is the minimum signal precision provided by the component for providing the brightness control signal. For example, when the component providing the brightness control signal is a current component, the minimum current precision provided by the current component can be the minimum current precision of the signal provided by the current component, such as 0.01mA.
Further, the embodiment of the present invention does not specifically limit the specific form of the brightness control signal, and the brightness control signal may be a digital signal, a voltage, a current, a PWM signal, or other numerical control signals; further, the luminance control signal adjustment accuracy and the device specification of the luminance adjustment test board are determined by the selected luminance control signal form, and the exemplary device uses an 8Bit digital signal, the maximum value is 255, the minimum value is 0, and the accuracy is 1.
And S120, inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals.
For example, according to the adjustment range and the adjustment precision of the brightness control signal, a plurality of brightness control signals can be input into the successive line liquid crystal display module in the order from small to large according to the brightness control signal, and the liquid crystal display module is controlled to display according to the brightness control signal.
Specifically, according to the control range and the adjustment accuracy of luminance control signal to a plurality of luminance control signal of liquid crystal display module input to control liquid crystal display module and show according to luminance control signal, can include:
and sequentially increasing the brightness control signal to the upper limit value of the adjustment range of the brightness control signal according to the adjustment precision of the brightness control signal from the lower limit value of the adjustment range of the brightness control signal, and inputting a plurality of brightness control signals to the liquid crystal display module to control the liquid crystal display module to display according to the brightness control signal. So guarantee that luminance control signal adjusts the precision height, and then guarantee that the display luminance of liquid crystal display module is categorised accurate, can accurate control reach corresponding luminance display effect when follow-up luminance gear is adjusted.
Specifically, the lcd module may include a backlight unit and an lcd unit, the lcd unit further includes an integrated driving circuit (driving IC), and the brightness adjustment test board is connected to the backlight unit and the lcd unit respectively. The brightness adjusting test board is used for inputting a plurality of brightness control signals to the backlight unit and controlling the backlight unit to emit light; the brightness adjusting test board is also used for outputting a display control signal to the liquid crystal display unit, controlling liquid crystal deflection, further controlling light emitted by the backlight unit to penetrate through the liquid crystal display unit, and realizing that the liquid crystal display module carries out display according to the brightness control signal.
The following describes the specific operation of the dimming test board and the lcd module:
1) Electrifying the brightness adjusting test board and configuring the GPIO port function of the chip;
2) The brightness adjusting test board supplies power to the liquid crystal display unit and is provided with a driving IC (integrated circuit) to enable the liquid crystal display unit to normally display;
3) The brightness adjusting test board outputs a display picture for displaying a pure white picture;
4) The brightness adjusting test board sends a minimum brightness control signal to the backlight unit;
5) The backlight unit outputs a voltage and a current corresponding to the control signal to light the backlight unit.
Furthermore, the brightness adjustment test board in the embodiment of the present invention may be an ARM (Advanced RISC Machines) test board, and the communication protocol between the brightness adjustment test board and the liquid crystal display module may be MIPI-DSI, MIPI-DBI, MIPI-DPI, or the like, or may be other, and may be specifically adjusted according to the specific model of the liquid crystal display module used. It should be noted that the power supply timing sequence of the ARM test board for supplying power to the liquid crystal display module, the manner of configuring the driver IC, and the working of the backlight unit are put back to the temple, and the corresponding prior art may be selected according to the adjusted model of the liquid crystal display module, which is not limited in the embodiment of the present invention. For example, the ARM test board provides U =1.8V/2.8V/3.3V and Imax =0.1A power supply for the liquid crystal display module, LPC2214 is adopted as a main chip, AMS 1117.8S/2.8S/3.3S is adopted as a power supply conversion chip, an ILI9881C is adopted by the liquid crystal display unit as a driving IC, and ISL98611 is adopted by the backlight unit as a control chip.
Further, the brightness adjustment test board may output a display picture displaying a pure white picture to the liquid crystal display unit, and may also output a display picture displaying other color pictures.
It should be further noted that, in the embodiment of the present invention, the brightness adjustment test board does not limit the driving timing sequence of the liquid crystal display unit and the backlight unit, so that in the above-mentioned working process, step 4) may be located before step 2) and step 3), that is, the brightness adjustment test board first sends the minimum brightness control signal to the backlight unit, and then supplies power to the liquid crystal display unit, and configures the driving IC to enable the liquid crystal display unit to normally display, and outputs the display picture displaying a pure white picture to the liquid crystal display unit. The embodiment of the invention does not limit the driving time sequence of the liquid crystal display unit and the backlight unit by the brightness adjusting test board.
And S130, acquiring a plurality of actual display brightness of the liquid crystal display module based on the brightness control signals.
Illustratively, the brightness detection device is used for detecting the display brightness of the liquid crystal display module and sending the display brightness to the brightness adjustment test board. The brightness detection device may use optical detection instruments commonly used in the market, such as CA-310, BM-7, etc.
The brightness adjusting test board receives a plurality of actual display brightness of the liquid crystal display module based on a plurality of brightness control signals.
S140, establishing a corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the brightness control signal corresponding to the actual display brightness.
Illustratively, each brightness control signal corresponds to an actual display brightness, when the actual brightness of the liquid crystal display module is adjusted, the brightness control signals can be determined according to the display brightness requirements corresponding to different brightness gears, the liquid crystal display module is driven to perform light emitting display based on the brightness control signals, it is ensured that any liquid crystal display module is matched with any main board, and a user can accurately adjust the display brightness of each brightness gear; the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized when the brightness gear and specification requirements are changed, so that users and designers can more simply, conveniently and accurately control the brightness effect of the liquid crystal display module, and finally stable visual effect experience is brought to terminal users.
To sum up, according to the method for adjusting the brightness of the liquid crystal display module, the adjustment range and the adjustment precision of the brightness control signal are determined according to the specification of the liquid crystal display module, then a plurality of brightness control signals are input to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signal, the liquid crystal display module is controlled to display according to the brightness control signal, then a plurality of actual display brightness of the liquid crystal display module based on the plurality of brightness control signals is obtained, and finally the corresponding relation among the brightness gear, the display brightness and the brightness control signal is established according to the plurality of actual display brightness and the corresponding brightness control signal thereof, so on the one hand, the accurate control of the brightness of the liquid crystal display module is realized according to the adjustment precision of the brightness control signal; on the other hand, by establishing the corresponding relation among the brightness gears, the display brightness and the brightness control signals, any liquid crystal display module is matched with any mainboard, and a user can accurately adjust the brightness of each gear; on the other hand, when the brightness gear and the specification requirement are changed, the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized; therefore, users and designers can more simply, conveniently and accurately control the brightness effect of the liquid crystal display module, and finally stable visual effect experience is brought to terminal users.
Example two
On the basis of the above embodiments, establishing the correspondence between the luminance gear, the display luminance, and the luminance control signal according to a plurality of actual display luminances and luminance control signals corresponding thereto may include different implementation manners, and this embodiment is specifically described in a feasible implementation manner.
Fig. 3 is a schematic flow chart of a method for adjusting the brightness of a liquid crystal display module according to a second embodiment of the present invention, and as shown in fig. 3, the method for adjusting a liquid crystal display module according to the second embodiment of the present invention includes:
s210, establishing a corresponding relation between the brightness gear and the set display brightness according to the use requirements of the user.
Specifically, the corresponding relationship between the brightness level and the display brightness may be established according to the actual use requirement of the user, and different brightness levels correspond to different set display brightness, as shown in table one below.
Figure BDA0002516525480000131
Figure BDA0002516525480000141
Table for corresponding relation between brightness gear and set display brightness
S220, determining the adjusting range and the adjusting precision of the brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjusting test board.
And S230, inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals.
And S240, acquiring a plurality of actual display brightness of the liquid crystal display module based on the brightness control signals.
And S250, determining the actual display brightness corresponding to the brightness gear with the minimum set display brightness difference as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness.
And S260, determining the brightness control signal corresponding to the target display brightness as a target brightness control signal.
S270, establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal, wherein the display brightness comprises set display brightness and/or target display brightness.
For example, based on the correspondence between the brightness level and the set display brightness established in step S210, the correspondence between the brightness control signal and the actual display brightness is further compared, and the actual display brightness with the minimum difference between the set display brightness corresponding to each brightness level is determined as the target display brightness. And further determining the brightness control signal corresponding to the target display brightness as a target brightness control signal.
Specifically, the second table is a corresponding relationship table between the luminance control signal and the actual display luminance, and the second table takes the example that the luminance control signal adopts an 8Bit digital signal as an example for explanation.
Brightness control signal Actual display brightness (cd/> square meter)
0 0.3143
1 0.3155
… …
97 50.159
… …
135 99.6236
… …
163 150.8955
… …
168 200.0871
… …
205 249.904
… …
222 299.9069
… …
255 409
Table two brightness control signal and actual display brightness corresponding relation table
Comparing the table one with the table two, it can be known that the actual display luminance with the minimum difference between the set display luminance and the set display luminance of 50 cd/square meter is 50.159 cd/square meter, namely 50.159 cd/square meter is the target display luminance corresponding to the luminance gear 1, and the luminance control signal '97' corresponding to the target display luminance '50.159 cd/square meter' is the target luminance control signal, corresponding to the luminance gear 1. Based on the above, a corresponding linked list among the established brightness gear, the display brightness and the target brightness control signal is established, which is shown in table three.
Figure BDA0002516525480000161
Table three-brightness gear, display brightness and target brightness control signal corresponding chain table
Further, the display brightness includes a set display brightness and/or a target display brightness, the set display brightness and the target display brightness (actual display brightness) are shown in table three at the same time, and in an actual process, at least one of the set display brightness and the actual display brightness may be set.
It should be noted that there is a slight difference between the actual display brightness selected in table three and the set display brightness, but in actual use, the slight difference is too small to be distinguished by a professional instrument, and cannot be distinguished by human eyes, and the brightness effect is the same for users.
S280, burning the corresponding linked list among the brightness level, the display brightness and the target brightness control signal into an integrated drive circuit of the liquid crystal display module; or generating a first ID code of a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal; and burning the first ID code into an integrated drive circuit of the liquid crystal display module, and uploading a corresponding linked list among the brightness level, the display brightness and the target brightness control signal to a cloud storage.
Exemplarily, the corresponding linked lists among the brightness level, the display brightness and the target brightness control signal are burned into the integrated driving circuit of the liquid crystal display module; or, burning the first ID code of the corresponding linked list among the brightness level, the display brightness and the target brightness control signal into the integrated drive circuit of the liquid crystal display module, so that when the liquid crystal display module is restarted, the control mainboard can obtain the corresponding linked list from the cloud storage by reading the stored corresponding linked list or according to the first ID code of the corresponding linked list, based on different brightness levels and/or display brightness requirements, the corresponding linked list can be directly searched to find the corresponding brightness control signal, and the liquid crystal display panel is driven to perform luminous display. The system has the advantages that any liquid crystal display module is matched with any mainboard, and a user can accurately adjust the brightness of each gear; meanwhile, the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized when the brightness gear and the specification requirement are changed; therefore, users and designers can control the brightness effect of the liquid crystal display module more simply, conveniently and accurately, and stable visual effect experience is finally brought to terminal users.
For example, when the use requirement of the user changes, the display brightness is "100" when the brightness level 1 is required, and the prior art can only recalibrate the different brightness levels and display brightness at this time; in the embodiment of the invention, because the brightness control signal '135' corresponding to the display brightness '100' is stored in the integrated drive circuit, the brightness control signal '135' corresponding to the display brightness '100' only needs to be provided in the brightness position 1, and the recalibration is not needed, so that the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized when the brightness position and specification requirements are changed.
On the basis of the foregoing embodiment, fig. 4 is a schematic flow chart of another method for adjusting the brightness of the liquid crystal display module according to the second embodiment of the present invention, and fig. 4 illustrates an actual method for adjusting the brightness of the liquid crystal display module according to the second embodiment of the present invention.
S301, start.
S302, establishing a corresponding relation between a brightness gear and set display brightness according to the use requirements of a user; and determining the adjusting range and the adjusting precision of the brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjusting test board.
S303, the brightness adjusting test board inputs a brightness control signal to the liquid crystal display module from the lower limit value of the brightness adjusting range.
S304, the liquid crystal display module performs light emitting display.
S305, the brightness detection device detects the actual display brightness of the liquid crystal display module and returns the actual display brightness to the brightness adjustment test board.
And S306, judging whether the brightness control signal exceeds the adjusting range.
And executing S307 when the brightness control signal exceeds the adjusting range; when the brightness control signal does not exceed the adjustment range, S308 is performed.
And S307, determining the actual display brightness corresponding to the brightness gear with the minimum set display brightness difference as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness.
S308, the brightness adjusting test board increases the brightness control signal according to the adjusting precision.
After increasing the luminance control signal in accordance with the adjustment accuracy, the process returns to S304.
S309, determining the brightness control signal corresponding to the target display brightness as a target brightness control signal.
S310, establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal.
S311, burning the corresponding linked list into an integrated driving circuit of the liquid crystal display module.
S312, generating a first ID code corresponding to the linked list; and burning the first ID code into an integrated drive circuit of the liquid crystal display module, and uploading a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal to a cloud storage.
And S313, ending.
By adopting the method for adjusting the brightness of the liquid crystal display module, on one hand, the precise control of the brightness of the liquid crystal display module is realized according to the adjusting precision of the brightness adjusting signal; on the other hand, by establishing the corresponding relation among the brightness gears, the display brightness and the brightness control signal, any liquid crystal display module is matched with any main board, and a user can accurately adjust the brightness of each gear; on the other hand, when the brightness gear and the specification requirement are changed, the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized; therefore, users and designers can control the brightness effect of the liquid crystal display module more simply, conveniently and accurately, and stable visual effect experience is finally brought to terminal users.
EXAMPLE III
On the basis of the foregoing embodiment, establishing the correspondence between the luminance gear, the display luminance, and the luminance control signal according to a plurality of actual display luminances and luminance control signals corresponding thereto may include different implementation manners, and this embodiment is specifically described in another feasible implementation manner.
Fig. 5 is a schematic flow chart of a method for adjusting the brightness of a liquid crystal display module according to a third embodiment of the present invention, and as shown in fig. 5, the method for adjusting a liquid crystal display module according to the third embodiment of the present invention includes:
s410, determining the adjusting range and the adjusting precision of the brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjusting test board.
And S420, inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals.
And S430, acquiring a plurality of actual display brightness of the liquid crystal display module based on the brightness control signals.
And S440, establishing a corresponding linked list between the actual display brightness and the brightness control signal.
S450, burning the corresponding linked list between the actual display brightness and the brightness control signal into an integrated drive circuit of the liquid crystal display module; or generating a second ID code of a corresponding linked list between the actual display brightness and the brightness control signal; and burning the second ID code into an integrated drive circuit of the liquid crystal display module, and uploading a corresponding linked list between the actual display brightness and the brightness control signal to a cloud storage.
And S460, establishing a corresponding relation between the brightness gear and the set display brightness according to the use requirements of the user.
And S470, determining the actual display brightness with the minimum difference of the set display brightness corresponding to the brightness gear as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness.
And S480, determining the brightness control signal corresponding to the target display brightness as a target brightness control signal.
S490, establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal, wherein the display brightness comprises the set display brightness and/or the target display brightness.
The difference between the embodiment and the second embodiment is that the integrated driving circuit of the liquid crystal display unit stores the second ID code of the corresponding linked list of the actual display brightness and the brightness control signal or the corresponding linked list between the actual display brightness and the brightness control signal, when the liquid crystal display module is used, a user searches and compares the corresponding linked list of the actual display brightness and the brightness control signal according to the actual requirement, and establishes the corresponding relationship between the brightness level, the display brightness and the brightness control signal according to the actual use requirement, so as to ensure that the user can accurately adjust the brightness of each level by matching any liquid crystal display module with any mainboard; meanwhile, the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized when the brightness gear and the specification requirement are changed; therefore, users and designers can control the brightness effect of the liquid crystal display module more simply, conveniently and accurately, and stable visual effect experience is finally brought to terminal users.
Example four
On the basis of the implementation, the brightness adjusting method of the liquid crystal display module according to the embodiment of the invention is applied to the liquid crystal display module in the brightness adjusting system of the liquid crystal display module, which is composed of the brightness detecting device, the brightness adjusting test board and the liquid crystal display module. The method for adjusting the brightness of the liquid crystal display module provided by the embodiment of the invention is explained from the angle of brightness adjustment in the actual use process of the liquid crystal display module. As shown in fig. 1, the lcd module 30 includes a control main board (not shown), an lcd unit and a backlight unit, and the integrated driving circuit of the lcd unit stores the corresponding relationship among the luminance steps, the display luminance and the luminance control signal.
Fig. 6 is a schematic flow chart of a method for adjusting the brightness of a liquid crystal display module according to a fourth embodiment of the present invention, and as shown in fig. 6, the method for adjusting the brightness of a liquid crystal display module according to the fourth embodiment of the present invention includes:
and S510, reading the corresponding relation among the brightness gear, the display brightness and the brightness control signal stored in the integrated drive circuit.
And S520, determining a target brightness control signal according to the brightness gear and the requirement of display brightness.
And S530, driving the backlight unit to emit light by adopting the target brightness control signal so as to light the liquid crystal display unit.
Illustratively, in the actual use process of the liquid crystal display module, if the display brightness is required to be adjusted, the control main board firstly reads the corresponding relation among the brightness gear, the display brightness and the brightness control signal which are pre-stored in the integrated drive circuit, then determines the target brightness control brightness according to the actual display brightness requirement of a user, and finally adopts the target brightness control signal to drive the backlight unit to emit light so as to light the liquid crystal display unit, thereby ensuring that the display brightness requirement of the user is met. For example, if the liquid crystal display module is required to display a luminance effect of 200 cd/square meter in 3-gear, the control mainboard controls the luminance by using a luminance control signal with a value of 168 according to the acquired linked list information of the table 3, so that a corresponding luminance effect can be obtained, the luminance adjusting mode is simple, and the adjustment of the target luminance effect of the liquid crystal display module can be simply, conveniently and accurately realized when the luminance gear and specification requirements are changed; therefore, users and designers can more simply, conveniently and accurately control the brightness effect of the liquid crystal display module, and finally stable visual effect experience is brought to terminal users.
EXAMPLE five
Fig. 7 is a schematic structural view of a test board for adjusting brightness according to a fifth embodiment of the present invention, and as shown in fig. 7, the test board 20 for adjusting brightness according to the fifth embodiment of the present invention includes:
and an adjustment determining module 610, configured to determine an adjustment range and an adjustment precision of the brightness control signal according to a specification of the liquid crystal display module and a specification of the brightness adjustment testing board.
And a brightness control signal input module 620, configured to input a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signal, so as to control the liquid crystal display module to display according to the brightness control signal.
An actual display brightness obtaining module 630, configured to obtain a plurality of actual display brightnesses of the liquid crystal display module based on the plurality of brightness control signals.
The correspondence establishing module 640 is configured to establish a correspondence between the brightness level, the display brightness, and the brightness control signal according to the actual display brightness and the brightness control signal corresponding to the actual display brightness.
According to the brightness adjusting test board provided by the embodiment of the invention, the adjusting range and the adjusting precision of the brightness control signal are determined according to the specification of the liquid crystal display module, then a plurality of brightness control signals are input into the liquid crystal display module according to the adjusting range and the adjusting precision of the brightness control signal, the liquid crystal display module is controlled to display according to the brightness control signal, then a plurality of actual display brightness of the liquid crystal display module based on the plurality of brightness control signals is obtained, and finally the corresponding relation among the brightness gear, the display brightness and the brightness control signal is established according to the plurality of actual display brightness and the corresponding brightness control signal thereof, so that on one hand, the accurate control of the brightness of the liquid crystal display module is realized according to the adjusting precision of the brightness adjusting signal; on the other hand, by establishing the corresponding relation among the brightness gears, the display brightness and the brightness control signal, any liquid crystal display module is matched with any main board, and a user can accurately adjust the brightness of each gear; on the other hand, when the brightness gear and the specification requirement are changed, the adjustment of the target brightness effect of the liquid crystal display module can be simply, conveniently and accurately realized; therefore, users and designers can more simply, conveniently and accurately control the brightness effect of the liquid crystal display module, and finally stable visual effect experience is brought to terminal users.
Example six
Fig. 8 is a schematic structural diagram of a liquid crystal display module according to a sixth embodiment of the present invention, and as shown in fig. 8, the liquid crystal display module 30 according to the sixth embodiment of the present invention includes a control main board, a liquid crystal display unit, and a backlight unit, where a corresponding relationship among a luminance shift, display luminance, and a luminance control signal is stored in an integrated driving circuit of the liquid crystal display unit; the liquid crystal display module 30 further includes:
the correspondence reading module 710 is configured to read a correspondence between the brightness level, the display brightness, and the brightness control signal stored in the integrated driving circuit.
And a target brightness control signal determining module 720, configured to determine a target brightness control signal according to the brightness level and the display brightness requirement.
The driving module 730 is configured to drive the backlight unit to emit light by using the target brightness control signal, so as to light the liquid crystal display unit.
In the actual use process of the liquid crystal display module provided by the embodiment of the invention, if the display brightness adjustment is required, the control main board firstly reads the corresponding relation among the brightness gear, the display brightness and the brightness control signal which are pre-stored in the integrated drive circuit, then determines the target brightness control brightness according to the actual display brightness requirement of a user, and finally adopts the target brightness control signal to drive the backlight unit to emit light so as to light the liquid crystal display unit, thereby ensuring that the display brightness requirement of the user is met.
EXAMPLE seven
Fig. 9 is a schematic structural diagram of a brightness adjustment apparatus for a liquid crystal display module according to a seventh embodiment of the present invention, and as shown in fig. 9, the brightness adjustment apparatus for a liquid crystal display module according to the seventh embodiment of the present invention includes a processor 810, a memory 820, an input device 830, and an output device 840; the number of the processors 810 in the device may be one or more, and one processor 810 is taken as an example in fig. 9; the processor 810, the memory 820, the input device 830 and the output device 840 of the apparatus may be connected by a bus or other means, for example, in fig. 9.
The memory 820 is used as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the method for adjusting the brightness of a liquid crystal display module according to the embodiments of the present invention (for example, the adjustment determining module 610, the brightness control signal input module 620, the actual display brightness acquiring module 630, and the corresponding relationship establishing module 640). The processor 810 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory 820, that is, the brightness adjustment method of the liquid crystal display module is realized.
The memory 820 may mainly include a program storage area and a data storage area, wherein the program storage 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 the use of the terminal, and the like. Further, the memory 820 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 820 may further include memory located remotely from the processor 501, which may be connected to devices through 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 830 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the apparatus.
The output device 840 may include a display device such as a display screen, for example, a display screen of a user terminal.
Example eight
The embodiment of the invention provides a computer readable storage medium, which stores a computer program, wherein the program is executed by a processor to execute a brightness adjusting method of a liquid crystal display module, and the method comprises the following steps:
determining the adjusting range and the adjusting precision of a brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjusting test board;
inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals;
acquiring a plurality of actual display brightness of the liquid crystal display module based on a plurality of brightness control signals;
and establishing a corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the corresponding brightness control signals.
Of course, the storage medium provided by the embodiments of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also perform related operations in the method for adjusting the brightness of the liquid crystal display module provided by any embodiments of the present invention.
The computer executable instructions are also used for executing a liquid crystal display module brightness adjusting method when being executed by a computer processor, and the method comprises the following steps:
reading the corresponding relation among the brightness gear, the display brightness and the brightness control signal stored in the integrated drive circuit;
determining a target brightness control signal according to the requirements of brightness gears and display brightness;
and driving the backlight unit to emit light by adopting the target brightness control signal so as to light the liquid crystal display unit.
Of course, the storage medium provided by the embodiments of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also perform related operations in the method for adjusting the brightness of the liquid crystal display module provided by any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the method for adjusting the brightness of the liquid crystal display module according to the embodiments of the present invention.
It should be noted that, in the embodiments of the test board for adjusting luminance and the lcd module, the units and modules included in the embodiment are only divided according to functional logic, but not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific names of the functional units are only for the convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A liquid crystal display module brightness adjusting method is applied to a brightness adjusting test board in a liquid crystal display module brightness adjusting system consisting of a brightness detection device, a brightness adjusting test board and a liquid crystal display module; the brightness adjusting test board is electrically connected with the brightness detection device and the liquid crystal display module respectively; the method for adjusting the brightness of the liquid crystal display module is characterized by comprising the following steps:
determining the adjusting range and the adjusting precision of a brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjusting test board;
inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals;
acquiring a plurality of actual display brightness of the liquid crystal display module based on a plurality of brightness control signals;
and establishing a corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the corresponding brightness control signals.
2. The method for adjusting the brightness of the LCD module according to claim 1, wherein before determining the adjustment range and the adjustment precision of the brightness control signal according to the specification of the LCD module, the method further comprises:
establishing a corresponding relation between a brightness gear and set display brightness according to the use requirements of a user;
establishing a corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the brightness control signal corresponding to the actual display brightness, comprising the following steps:
determining the actual display brightness corresponding to the brightness gear with the minimum set display brightness difference as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness;
determining a brightness control signal corresponding to the target display brightness as a target brightness control signal;
and establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal, wherein the display brightness comprises set display brightness and/or target display brightness.
3. The method for adjusting brightness of LCD module according to claim 2, after establishing the corresponding linked list among the brightness level, the display brightness and the target brightness control signal, further comprising:
burning the corresponding linked list among the brightness level, the display brightness and the target brightness control signal into an integrated drive circuit of the liquid crystal display module;
or generating a first ID code of a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal;
and burning the first ID code into an integrated drive circuit of the liquid crystal display module, and uploading a corresponding linked list among the brightness level, the display brightness and the target brightness control signal to a cloud storage.
4. The method according to claim 1, wherein the step of establishing a correspondence between the brightness level, the display brightness, and the brightness control signal according to the actual display brightness and the corresponding brightness control signal comprises:
establishing a corresponding linked list between the actual display brightness and the brightness control signal;
burning the corresponding linked list between the actual display brightness and the brightness control signal into an integrated drive circuit of the liquid crystal display module; or generating a second ID code of a corresponding linked list between the actual display brightness and the brightness control signal; burning the second ID code into an integrated drive circuit of the liquid crystal display module, and uploading a corresponding linked list between the actual display brightness and the brightness control signal to a cloud storage;
according to the use requirements of users, establishing a corresponding relation between the brightness gear and the set display brightness;
determining the actual display brightness corresponding to the brightness gear with the minimum set display brightness difference as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness;
determining a brightness control signal corresponding to the target display brightness as a target brightness control signal;
and establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal, wherein the display brightness comprises set display brightness and/or target display brightness.
5. The method for adjusting the brightness of the LCD module according to claim 1, wherein inputting a plurality of brightness control signals to the LCD module according to the adjustment range and the adjustment precision of the brightness control signals to control the LCD module to display according to the brightness control signals comprises:
and sequentially increasing the brightness control signal to the upper limit value of the adjustment range of the brightness control signal from the lower limit value of the adjustment range of the brightness control signal according to the adjustment precision of the brightness control signal, and inputting a plurality of brightness control signals to the liquid crystal display module to control the liquid crystal display module to display according to the brightness control signal.
6. A liquid crystal display module brightness adjusting method is applied to a liquid crystal display module in a liquid crystal display module brightness adjusting system which is composed of a brightness detecting device, a brightness adjusting test board and a liquid crystal display module; the liquid crystal display module comprises a control main board, a liquid crystal display unit and a backlight unit, wherein the integrated drive circuit of the liquid crystal display unit stores the corresponding relation among brightness gears, display brightness and brightness control signals; the method for adjusting the brightness of the liquid crystal display module is characterized by comprising the following steps:
reading the corresponding relation among the brightness gear, the display brightness and the brightness control signal stored in the integrated drive circuit;
the method for establishing the correspondence among the brightness gears, the display brightness and the brightness control signals stored in the integrated drive circuit according to a plurality of actual display brightnesses and the corresponding brightness control signals comprises the following steps:
determining the actual display brightness with the minimum difference of the set display brightness corresponding to the brightness gear as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness;
determining a brightness control signal corresponding to the target display brightness as a target brightness control signal;
establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal, wherein the display brightness comprises set display brightness and/or target display brightness;
determining a target brightness control signal according to the requirements of brightness gears and display brightness;
and driving the backlight unit to emit light by adopting the target brightness control signal so as to light the liquid crystal display unit.
7. A test board for testing luminance adjustment, comprising:
the adjustment determining module is used for determining the adjustment range and the adjustment precision of the brightness control signal according to the specification of the liquid crystal display module and the specification of the brightness adjustment test board;
the brightness control signal input module is used for inputting a plurality of brightness control signals to the liquid crystal display module according to the adjustment range and the adjustment precision of the brightness control signals so as to control the liquid crystal display module to display according to the brightness control signals;
the actual display brightness acquisition module is used for acquiring a plurality of actual display brightness of the liquid crystal display module based on the brightness control signals;
and the corresponding relation establishing module is used for establishing the corresponding relation among the brightness gear, the display brightness and the brightness control signal according to the actual display brightness and the brightness control signal corresponding to the actual display brightness.
8. A liquid crystal display module comprises a control main board, a liquid crystal display unit and a backlight unit, wherein the integrated drive circuit of the liquid crystal display unit stores the corresponding relation among brightness gears, display brightness and brightness control signals; characterized in that, the liquid crystal display module still includes:
the corresponding relation reading module is used for reading the corresponding relation among the brightness gear, the display brightness and the brightness control signal stored in the integrated drive circuit;
the method for establishing the correspondence among the brightness gears, the display brightness and the brightness control signals stored in the integrated drive circuit according to a plurality of actual display brightnesses and the corresponding brightness control signals comprises the following steps:
determining the actual display brightness corresponding to the brightness gear with the minimum set display brightness difference as the target display brightness according to the corresponding relation between the brightness gear and the set display brightness and the actual display brightness;
determining a brightness control signal corresponding to the target display brightness as a target brightness control signal;
establishing a corresponding linked list among the brightness gear, the display brightness and the target brightness control signal, wherein the display brightness comprises set display brightness and/or target display brightness;
the target brightness control signal determining module is used for determining a target brightness control signal according to the brightness gear and the display brightness requirement;
and the driving module is used for driving the backlight unit to emit light by adopting the target brightness control signal so as to light the liquid crystal display unit.
9. A liquid crystal display module brightness adjusting device, comprising a memory, a processor and a computer program stored on the memory and running on the processor, characterized in that the processor implements the liquid crystal display module brightness adjusting method according to any one of claims 1 to 6 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the method for adjusting the brightness of a liquid crystal display module according to any one of claims 1 to 6.
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