CN110164367A - Brightness adjusting method, device and the display screen of display screen - Google Patents

Brightness adjusting method, device and the display screen of display screen Download PDF

Info

Publication number
CN110164367A
CN110164367A CN201910367728.0A CN201910367728A CN110164367A CN 110164367 A CN110164367 A CN 110164367A CN 201910367728 A CN201910367728 A CN 201910367728A CN 110164367 A CN110164367 A CN 110164367A
Authority
CN
China
Prior art keywords
brightness
screen body
data
screen
brightness data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910367728.0A
Other languages
Chinese (zh)
Inventor
孙志松
朱晖
熊佩林
李金库
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bazhou Yungu Electronic Technology Co Ltd
Original Assignee
Bazhou Yungu Electronic Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bazhou Yungu Electronic Technology Co Ltd filed Critical Bazhou Yungu Electronic Technology Co Ltd
Priority to CN201910367728.0A priority Critical patent/CN110164367A/en
Publication of CN110164367A publication Critical patent/CN110164367A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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 using controlled light sources
    • G09G3/30Control 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 using controlled light sources using electroluminescent panels
    • G09G3/32Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208Control 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness

Abstract

The present invention relates to a kind of brightness adjusting method of display screen, device and display screens;This method uses the relation data between the time by obtaining screen body brightness data and shielding body, the screen body brightness data at current time is determined according to the relation data, and according to the screen body brightness data at the current time and preset object brightness data, the adjustment parameter of the screen body brightness is determined;To according to the adjustment parameter by the brightness regulation of the display screen to object brightness.It solves as screen body is using the increase screen body brightness decay of time and the technical issues of influence display effect in traditional technology, and promotes contrast, color saturation and visible angle.

Description

Brightness adjusting method, device and the display screen of display screen
Technical field
The present invention relates to display fields, more particularly to the brightness adjusting method, device and display screen of a kind of display screen.
Background technique
With the fast development of display technology, occurs the display screen of large scale ultrahigh resolution, ultra-narrow frame in the market. However as the increase of size, the technique controlling difficulty of display screen increases, and manufacture craft control deviation be easy to cause picture equal One property is deteriorated and generates Mura (color spot failures) phenomenon.Wherein, Mura phenomenon refers to showing non-uniform phenomenon in display screen, It is generated due to factors such as technological level, material purities.
In the conventional technology, each producer is clapped using CCD (Charge Coupled Device, charge-coupled device) camera Detection picture shown by display panel is taken the photograph, under multiple grayscale, is shot three shown by display panel respectively by CCD camera Primary colours picture determines that the corresponding brightness of display panel is mended to acquire corresponding three primary colours brightness data, according to three primary colours brightness data Data are repaid to improve Mura phenomenon.
But as screen body uses the increase of time, the brightness for shielding body can decay, and influence the display effect for shielding body Fruit.
Summary of the invention
Based on this, it is necessary to for, as screen body uses the increase of time, screen body brightness decay simultaneously influences in traditional technology The technical issues of display effect, provides brightness adjusting method, device, display screen and the storage medium of a kind of display screen.
A kind of brightness adjusting method of display screen, which comprises
It obtains screen body brightness data and shields body and use the relation data between the time;
The screen body brightness data at current time is determined according to the relation data;
According to the screen body brightness data at the current time and preset object brightness data, the screen body brightness is determined Adjustment parameter;
According to the adjustment parameter by the brightness regulation of the display screen to object brightness.
The brightness adjusting method of above-mentioned display screen uses the relationship between the time by obtaining screen body brightness data and shielding body Data determine the screen body brightness data at current time according to relation data, and according to the screen body brightness data at current time and in advance If object brightness data, determine screen body brightness adjustment parameter;To according to adjustment parameter by the brightness regulation of display screen extremely Object brightness, to solve in traditional technology as screen body shields body brightness decay using the increase of time and influences the skill of display effect Art problem.
The screen body brightness data and screen body use the generation of the relation data between the time in one of the embodiments, Mode, comprising:
When the screen body to preset quantity carries out degradation, the brightness data of every piece of screen body is obtained, and is recorded described every The corresponding screen body of the brightness data of block screen body uses the time;
The corresponding screen body of brightness data of the brightness data and every piece of screen body that shield body according to described every piece uses the time It generates the screen body brightness data and shields body and use the relation data between the time.
It is default that the screen body brightness data and screen body, which use the relation data between the time, in one of the embodiments, The screen body brightness data uses the functional relation of time change with the screen body under grayscale.
The screen body brightness data that current time is determined according to the relation data in one of the embodiments, packet It includes:
In conjunction with the functional relation, time and original brightness number are used according to the grayscale at the current time, the screen body According to the screen body brightness data at the determination current time.
In one of the embodiments, the adjustment parameter is luminance compensation data, described according to the current time Shield body brightness data and preset object brightness data, determine the adjustment parameter of the screen body brightness, comprising:
When generating described current according to the screen body brightness data at the current time and the preset object brightness data The corresponding luminance compensation data of screen body brightness data at quarter;
It is described according to the adjustment parameter by the brightness regulation of the display screen to object brightness, comprising:
The corresponding luminance compensation data of the screen body brightness data at the current time are written in memory described in update Luminance compensation data in memory;
When electric on the display screen, the corresponding luminance compensation data of screen body brightness data for reading the current time will The brightness regulation of the display screen is to object brightness.
The adjustment parameter is screen body running voltage in one of the embodiments,;It is described according to the current time Shield body brightness data and preset object brightness data, determine the adjustment parameter of the screen body brightness, comprising:
It is true according to the screen body brightness data at the current time and the preset object brightness data every preset time The fixed screen body running voltage;
It is described according to the adjustment parameter by the brightness regulation of the display screen to object brightness, comprising:
The screen body running voltage is adjusted by the driving IC of the display screen, by the brightness regulation of the display screen to mesh Mark brightness.
The screen body running voltage includes the first supply voltage VDD, second source voltage in one of the embodiments, Any of VSS, gamma electric voltage, data voltage Vdata.
The display screen is equipped with light sensor in one of the embodiments,;The method also includes:
Current environmental light brightness locating for the screen body is obtained by the light sensor;
The screen body brightness data according to the current time and preset object brightness data determine that the screen body is bright The adjustment parameter of degree, comprising:
According to the screen body brightness data at the current time, the preset object brightness data and the current environment light Brightness determines the adjustment parameter of the screen body brightness.
A kind of brightness regulating apparatus of display screen, described device include:
Relation data obtains module, uses the relation data between the time for obtaining screen body brightness data and shielding body;
Brightness data determining module, for determining the screen body brightness data at current time according to the relation data;
Adjustment parameter determining module, for the screen body brightness data and preset object brightness number according to the current time According to determining the adjustment parameter of the screen body brightness;
Luminance adjustment module, for according to the adjustment parameter by the brightness regulation of the display screen to object brightness.
A kind of display screen, the display screen include display unit and controller, and the controller and the display unit are electric Connection, the controller include memory, processor and storage on a memory and the computer that can run on a processor The step of program, the processor realizes any one of above-described embodiment the method when executing the computer program.
Detailed description of the invention
Fig. 1 is the flow diagram of the brightness adjusting method of display screen in one embodiment;
Fig. 2 a is to generate screen body brightness data in one embodiment and shield body to use the process of the relation data between the time Schematic diagram;
Fig. 2 b is the schematic diagram that screen body brightness uses time change with screen body in one embodiment;
Fig. 3 a is the flow diagram of the brightness adjusting method of display screen in one embodiment;
Fig. 3 b is that the screen body after traditional technology and the luminance compensation compensation data of the application is respectively adopted in one embodiment Brightness schematic diagram;
Fig. 4 is the flow diagram of the brightness adjusting method of display screen in one embodiment;
Fig. 5 is the flow diagram of the brightness adjusting method of display screen in one embodiment;
Fig. 6 is the flow diagram of the brightness adjusting method of display screen in one embodiment;
Fig. 7 is the structural block diagram of the brightness regulating apparatus of display screen in one embodiment.
Specific embodiment
As described in background, in traditional technology, although screen body is equipped with object brightness data, as screen body uses The increase of time, the brightness that screen body is exported can have differences with actually required brightness, and shield the brightness that body is exported and be lower than Shield the preset object brightness of body, causes contrast, color saturation and visible angle to reduce, to influence display effect.By Research, inventor have found that the basic reason of this problem is, as screen body uses the increase of time, shield the luminescent material in body Aging occurs.
Further, the parameters such as screen body brightness and the electric current, the luminance compensation data that flow through Organic Light Emitting Diode OLED have Close, and the electric current for flowing through Organic Light Emitting Diode OLED be decided by shield body operating voltage (such as supply voltage VDD, data electricity Press Vdata etc.).Why shielding body brightness can be decayed with body is shielded using the growth of time, be the luminous material because in screen body Aging has occurred in material, and shields the corresponding parameter of body brightness (such as operating voltage, luminance compensation data of screen body) and also immobilize.
Therefore, in order to compensate to screen body brightness, the application provides a kind of brightness adjusting method of display screen, this method By obtaining screen body brightness data and shielding body using the relation data between the time, the screen at current time is determined according to relation data Body brightness data, and according to the screen body brightness data at current time and preset object brightness data, determine the tune of screen body brightness Save parameter;To according to adjustment parameter by the brightness regulation of display screen to object brightness.In the application, for shining in screen body Influence of the increase using the time of body to screen body brightness is shielded in the aging of material, is joined according to the adjusting of determining screen body brightness The several pairs of operating voltages for shielding body or luminance compensation data are adjusted, and the brightness regulation of display screen to object brightness solves to pass As screen body is using the increase screen body brightness decay of time and the technical issues of influence display effect in system technology, and promote comparison Degree, color saturation and visible angle.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
In one embodiment, referring to Figure 1, the application provides a kind of brightness adjusting method of display screen, this method packet Include following steps:
S110, acquisition screen body brightness data and screen body use the relation data between the time;
S120, the screen body brightness data that current time is determined according to relation data;
S130, the screen body brightness data according to current time and preset object brightness data determine the tune of screen body brightness Save parameter;And
S140, according to adjustment parameter by the brightness regulation of display screen to object brightness.
Screen body can be the organic light-emitting diode (OLED) display screen (OLED) of hardness, be also possible to flexible OLED screen.Shield in body It is provided with the pixel of array arrangement, a pixel includes red R, green G, blue tri- sub-pixels of B.The light of each sub-pixel Source can show different gray scales, be indicated with grayscale.Grayscale is represented by most secretly to the layer of different brightness most bright Secondary rank, this intermediate level is more, and the picture effect that can be presented is also finer and smoother.On screen the color of each pixel and Brightness change is essentially all brought by the variation for the grayscale value for constituting three sub-pixels of red, green, blue of this pixel. Screen body brightness data is the strong and weak relevant data that shine under a certain grayscale to display screen.It is adopted when electric on a display screen by image Acquisition means carry out Image Acquisition and extract to obtain screen body brightness data to picture shown by display screen, wherein image collector It sets and can be CCD camera.
Screen body refers to that screen body powers on the time shown using the time.Screen body can pass through display screen using the time The system board for driving IC or being equipped with the terminal of the display screen is recorded.When screen body is powered on for the first time and shown, start Record screen body uses the time;When shield body it is powered-down without display when, then stop recording and save screen body using the time;When screen body again Secondary to power on when being shown, the screen body that then last time saves continues to record using the time.
As screen body uses the increase of time, aging occurs for the luminescent material shielded in body, decays to shield body brightness, Then shield body brightness data and screen body there will necessarily be certain relationship using the time.Shield body brightness data and screen body used between the time Relation data be used to indicate variation and corresponding relationship between the two that screen body brightness data uses the time with screen body.Specifically Screen body brightness data and screen body are previously stored in display screen by ground using the relation data between the time.Obtain screen body brightness Data and screen body use the relationship number between the time by screen body brightness data and screen body using the relation data between the time According to the screen body recorded according to current time determines the screen body brightness data at current time using the time.
The adjustment parameter of screen body brightness in step S130 refers to the parameter for shielding body brightness, such as luminance compensation number According to, screen body running voltage etc..Specifically, display screen is equipped with object brightness data, when being used by screen body brightness data and screen body Between between relation data determine the screen body brightness data at current time after, preset object brightness data are obtained, when current There may be differences between the screen body brightness data at quarter and preset object brightness data, in order to allow display screen to reach preset mesh Brightness is marked, the adjustment parameter of screen body brightness is determined in conjunction with the screen body brightness data and object brightness data at current time, so that aobvious Display screen exports preset object brightness.
Specifically, in step S140, can according to the adjustment parameter of determining screen body brightness to screen body running voltage and/ Or luminance compensation data are adjusted, and change display screen output by adjusting screen body running voltage and/or luminance compensation data Brightness, so that display screen exports object brightness.
In the present embodiment, aging or screen body for the luminescent material in screen body are using the increase of time to screen body brightness Influence, by screen body brightness data and shield the screen body brightness number that body determines using the relation data between the time current time According to, and the adjustment parameter for shielding body brightness is determined according to the screen body brightness data and object brightness data at current time, thus according to Adjustment parameter is by the brightness regulation of display screen to object brightness, to solve as screen body uses the increase of time in traditional technology, The technical issues of shielding body brightness decay and influencing display effect, and promote contrast, color saturation and visible angle.
In one embodiment, Fig. 2 a is referred to, shields body brightness data and screen body uses the relation data between the time Generating mode, comprising the following steps:
S210, when carrying out degradation to the screen body of preset quantity, the brightness data of every piece of screen body is obtained, and record every piece The corresponding screen body of brightness data for shielding body uses the time;
The corresponding screen body of brightness data of S220, the brightness data for shielding body according to every piece and every piece of screen body are generated using the time Shield body brightness data and shield body and uses the relation data between the time.
Wherein, degradation refers to the case where simulating display screen generates aging in real use condition and is tested Process.The screen body for selecting preset quantity, these screen bodies are powered on so that these screen body continuous illuminations for a period of time.Its In, preset quantity can be set according to the actual situation and shield the time of body continuous illumination, the application does not limit this.Shield body Quantity can be 10 pieces, 20 pieces, 30 pieces it is even more.Shield body can with continuous illumination 12 hours, 24 hours, 48 hours even more Long.
Specifically, it during carrying out degradation to display screen, under a certain grayscale, is obtained by image collecting device Take screen body brightness data, and record the corresponding screen body of screen body brightness data that gets using the time to get to screen body brightness with The data of time change.By way of curve matching, the brightness of the brightness data and every piece of screen body that body can be shielded according to every piece The corresponding screen body of data is generated screen body brightness data and shielded body using the time uses the relation data between the time.
In the present embodiment, senile experiment is carried out by the display screen to preset quantity, and Binding experiment data obtain screen body Brightness data and screen body are using the relation data between the time, to pass through screen body brightness number using the time according to the screen body of record According to screen body using the relation data between the time it can be learnt that shielding the true brightness at body current time, to carry out brightness of display screen Adjusting lays the foundation, and realizes the subsequent accurate compensation to brightness of display screen.
In one embodiment, shielding body brightness data and screen body using the relation data between the time is to shield under preset gray scale Body brightness data uses the functional relation of time change with screen body.Fig. 2 b is referred to, screen body brightness data and screen body use the time Between functional relation reflection be shield body brightness data with screen body use the time attenuation change.
It illustrates screen body brightness data and shields body using the generation of the functional relation between the time, select 30 pieces of display screens It carries out degradation test to light the display screen selected under preset gray scale, and detects white picture automatically and initially show Brightness, and against 30 pieces of display screens persistently put screen 24 hours, and in 24 hours every piece of display screen of continuance test brightness data. The time is used using the brightness data and corresponding screen body of the every piece of screen body generated during senile experiment, is obtained by curve matching The each piece of screen body brightness data for shielding body and screen body use the functional relation between the time out.To pass through averaging method and basis The each piece of screen body brightness data for shielding body and screen body, which calculate screen body brightness data and screen body using the functional relation between the time, to be made With the functional relation between the time.The burned display of functional relation between the time is used finally, body brightness data will be shielded and shield body In the driving IC of screen.
In the present embodiment, senile experiment is carried out by the display screen to preset quantity, and Binding experiment data obtain screen body Brightness data and screen body are using the functional relation between the time, to pass through screen body brightness number using the time according to the screen body of record According to screen body using the functional relation between the time it can be learnt that shielding the true brightness at body current time, to carry out brightness of display screen Adjusting lays the foundation, and realizes the subsequent accurate compensation to brightness of display screen.
In one embodiment, the screen body brightness data at current time is determined according to relation data, comprising: associative function closes System determines the screen body brightness data at current time according to the grayscale at current time, screen body using time and original luminance data.
Wherein, the grayscale at current time refers to the gray scale presented in current time screen body.Original luminance data It refers to carrying out Image Acquisition to picture shown by screen body by image collecting device when screen body powers on for the first time and extract bright Degree evidence.Screen body brightness data and screen body can be indicated using the functional relation between the time are as follows:
Lxyta=f (Lxya, t, Va);Wherein, Lxyta is the screen body brightness data changed over time, and t is that screen body uses Time, Va are that image collecting device takes the grayscale being arranged when figure, for example, a can value 0-5, totally 6 grayscale, the present embodiment is to a's Value is without limitation.Lxya is original luminance data, and Lxya can be indicated are as follows:
Lxya=f (X, Y, Va);Wherein, X, Y are used to indicate the position of pixel.
Specifically, shield body brightness data and screen body is previously stored in display screen using the functional relation between the time.Screen It includes screen body brightness data, original luminance data, grayscale and screen that body brightness data and screen body, which use the functional relation between the time, Body uses the time.It, can be in conjunction with screen body then after obtaining screen body brightness data and shielding body using the functional relation between the time Brightness data and screen body use time, current time according to the screen body of current time record using the functional relation between the time Grayscale and original luminance data determine the screen body brightness data at current time.
In one embodiment, as above, shield the operating voltage of body, luminance compensation number affects screen body brightness, then shield body The adjustment parameter of brightness includes luminance compensation data and/or the operating voltage for shielding body.
Wherein, luminance compensation data refer to that the brightness for actually being exported to each pixel is compensated to reach screen The data of body object brightness.Positive compensation is carried out if the brightness that pixel is actually exported is lower than screen body object brightness, if The brightness that pixel is actually exported is higher than screen body object brightness and then carries out Contrary compensation.Specifically, to the corresponding ginseng of screen body brightness Number, which is adjusted can be, adjusts luminance compensation data, is also possible to adjust the operating voltage of screen body, can also adjust simultaneously bright It spends offset data and shields the operating voltage of body to guarantee display effect.
It should be noted that on the one hand, in order to keep screen body brightness constant to guarantee user experience not in use Become, preset object brightness data can be fixed and invariable, and shield the operating voltage or bright of body by adjusting in this case The brightness of offset data adjustment display screen is spent, so that compensated display screen keeps respective grayscale corresponding in each gray-scale intensity Object brightness.As screen body uses the increase of time, memory space needed for luminance compensation data is also increasing, and luminance compensation The memory space of data has been set when leaving the factory, in such a case, it is possible to the operating voltage preferably by adjusting screen body To keep screen body brightness constant.On the other hand, object brightness data, and object brightness number are set according to the actual conditions of display screen According to being also with time change.Object brightness data and the corresponding relationship between the time are stored in display screen, according to change The object brightness data of change and the screen body brightness data at current time are updated to adjust display screen luminance compensation data Brightness.
In one embodiment, Fig. 3 a is referred to, the adjustment parameter of screen body brightness is luminance compensation data.According to it is current when The screen body brightness data at quarter and preset object brightness data determine the adjustment parameter of screen body brightness, may include:
S310, the screen body that current time is generated according to the screen body brightness data at current time and preset object brightness data The corresponding luminance compensation data of brightness data.
According to adjustment parameter by the brightness regulation of display screen to object brightness, may include:
S320, the corresponding luminance compensation data of the screen body brightness data at current time are written in memory to update storage Luminance compensation data in device;
S330, it is electric on a display screen when, the corresponding luminance compensation data of screen body brightness data for reading current time will be shown The brightness regulation of display screen is to object brightness.
Specifically, by obtaining screen body brightness data and shielding body using the relation data between the time, and according to the relationship Data determine the screen body brightness data at current time.Then, using the screen body brightness data at current time as input parameter, in conjunction with It is corresponding to generate the screen body brightness data at current time by DeMura (removing Mura) backoff algorithm for preset object brightness data Luminance compensation data.Wherein, DeMura backoff algorithm refers to eliminate Mura in display screen and compensates to screen body brightness Algorithm.The corresponding luminance compensation data of the screen body brightness data at current time are written in memory and are replaced in memory Luminance compensation data before.When display screen powers on, updated screen body brightness data is read out of memory, by display screen Brightness regulation to object brightness, and then show picture.Wherein, memory can be Flash flash memory.
In the present embodiment, by determining the screen body brightness data at current time, and according to the screen body brightness number at current time In real time or periodically update according to the luminance compensation data in memory, refer to Fig. 3 b, as screen body uses the time Increase, being compensated using luminance compensation data fixed in traditional technology, which will lead to, shows that uneven and display quality is lower. And using the time luminance compensation data are updated herein in connection with screen body, updated luminance compensation data and it is current when The screen intensity at quarter more matches, and improves show uniformity, solves the luminance compensation in traditional technology in flash storage The technical issues of low display quality caused by data immobilize.
In one embodiment, adjustment parameter is screen body running voltage.According to the screen body brightness data at current time and in advance If object brightness data, determine screen body brightness adjustment parameter, comprising: it is bright according to the screen body at current time every preset time Degree evidence and preset object brightness data determine screen body running voltage;According to adjustment parameter by the brightness regulation of display screen to mesh Mark brightness, comprising: screen body running voltage is adjusted by the driving IC of display screen, by the brightness regulation of display screen to object brightness.
Wherein, screen body running voltage includes the first supply voltage VDD, second source voltage VSS, gamma electric voltage, data electricity Press any of Vdata.Specifically, it is determined by screen body brightness data and screen body using the relation data between the time current After the screen body brightness data at moment, obtain preset object brightness data, the screen body brightness data at current time with it is preset There may be differences between object brightness data, and in order to allow display screen to reach preset object brightness, the driving IC of display screen is obtained The screen body brightness data and object brightness data for taking current time, according to the screen body brightness data and object brightness number at current time Screen body running voltage to be offered is needed according to determining, and screen body running voltage is adjusted by the driving IC of display screen, by display screen Brightness regulation is to object brightness.In the present embodiment, in screen body use process, time automatic adjustment screen body is used in conjunction with screen body Operating voltage, by the brightness regulation of display screen to object brightness, the display brightness of amendment screen body improves the homogeneity of display.
In one embodiment, display screen is equipped with light sensor.This method further include: obtained and shielded by light sensor Current environmental light brightness locating for body.According to the screen body brightness data at current time and preset object brightness data, screen is determined The adjustment parameter of body brightness, comprising: according to the screen body brightness data at current time, preset object brightness data and current environment Brightness determines the adjustment parameter of screen body brightness.
Wherein, light sensor is also referred to as brightness impression device, for detecting light intensity.Specifically, pass through light level Current environmental light brightness locating for device detection screen body, the driving IC of display screen obtains current environmental light brightness, by driving IC Compensation formula can be with according to the screen body brightness data at current time, preset object brightness data and current environmental light brightness Luminance compensation data are adjusted, the operating voltage of screen body can also be adjusted, it can also be simultaneously to luminance compensation number It is adjusted according to the operating voltage with screen body.For example, when display screen is in environment (night or the thunderstorm gas) of dark, in conjunction with Screen body brightness data, preset object brightness data and the current environmental light brightness screen body brightness at current time reduce the work of screen body Make voltage or luminance compensation data to turn down screen body brightness;Display screen, which is in, compares bright ring border (under light or outdoor solar light Magnificent environment) when, in conjunction with the screen body brightness data at current time, preset object brightness data and current environmental light brightness screen body Brightness increases operating voltage or the luminance compensation data of screen body so that screen body brightness is turned up, and makes to reduce screen body brightness to eyes At injury.
In the present embodiment, by introducing light sensor, and the current environmental light brightness detected in conjunction with light sensor Screen body brightness is adjusted, improves the flexibility for adjusting screen body brightness, and improve user experience.
In one embodiment, Fig. 4 is referred to, the application provides a kind of brightness adjusting method of display screen, this method packet Include following steps:
S410, when carrying out degradation to the screen body of preset quantity, the brightness data of every piece of screen body is obtained, and record every piece The corresponding screen body of brightness data for shielding body uses the time;
The corresponding screen body of brightness data of S420, the brightness data for shielding body according to every piece and every piece of screen body are generated using the time Shield body brightness data and shield body and uses the relation data between the time and preservation;
S430, acquisition screen body brightness data and screen body use the relation data between the time;
S440, the screen body brightness data that current time is determined according to relation data;
S450, current environmental light brightness locating for screen body is obtained by light sensor;
S460, according to the screen body brightness data at current time, preset object brightness data and current environmental light brightness, really Surely shield the adjustment parameter of body brightness;
S470, according to adjustment parameter by the brightness regulation of display screen to object brightness.
In the present embodiment, current time is determined using the relation data between the time by screen body brightness data and screen body Shield body brightness data, and determines that the adjusting of screen body brightness is joined according to the screen body brightness data and object brightness data at current time Number, thus according to adjustment parameter by the brightness regulation of display screen to object brightness, to solve in traditional technology as screen body uses The increase of time, shields body brightness decay and the technical issues of influence display effect, and promotes contrast, color saturation and visual Angle.Further, by introducing light sensor, and the current environmental light brightness for combining light sensor to detect is to screen body Brightness is adjusted, and improves the flexibility for adjusting screen body brightness, and improve user experience.
In one embodiment, Fig. 5 is referred to, to adjust the brightness regulation side that luminance compensation data instance illustrates display screen Method, method includes the following steps:
S510, data of the screen body brightness with screen body using time change are obtained, and passes through curve matching screen body brightness data The functional relation between the time is used with screen body;
S520, it is used by the screen body that the main board system of driving IC or the terminal for being equipped with the display screen record display screen Time;
S530, the functional relation Lxyta=f (Lxya, t, Va) between the time is used by screen body brightness data and screen body, The screen body brightness data at current time is determined using time, the grayscale at current time, original luminance data according to screen body;
S540, it is produced current using the screen body brightness data at current time as input parameter by DeMura backoff algorithm The corresponding luminance compensation data of screen body brightness data at moment;
S550, the corresponding luminance compensation data of the screen body brightness data at current time are written in flash storage with more New luminance compensation data;
S560, it is electric on a display screen when, the corresponding luminance compensation data of screen body brightness data for reading current time will be shown The brightness regulation of display screen is to object brightness.
In one embodiment, Fig. 6 is referred to, the brightness regulation side of display screen is illustrated for adjusting and shield body running voltage Method, method includes the following steps:
S610, data of the screen body brightness with screen body using time change are obtained, and passes through curve matching screen body brightness data The functional relation between the time is used with screen body;
S620, time calculator is set in the driving IC of display screen, the screen of display screen is recorded by the time calculator Body uses the time;
S630, the functional relation Lxyta=f (Lxya, t, Va) between the time is used by screen body brightness data and screen body, The screen body brightness data at current time is determined using time, the grayscale at current time, original luminance data according to screen body;
S640, current environmental light brightness locating for screen body is obtained by light sensor;
S650, according to the screen body brightness data at current time, preset object brightness data and current environmental light brightness, really Surely screen body running voltage to be offered is needed;
S660, screen body running voltage is adjusted by the driving IC of display screen, by the brightness regulation of display screen to object brightness.
It should be understood that although each step in the flow chart of the various embodiments described above is successively shown according to the instruction of arrow Show, but these steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, this There is no stringent sequences to limit for the execution of a little steps, these steps can execute in other order.Moreover, above-mentioned each implementation At least part step in example may include that perhaps these sub-steps of multiple stages or stage be not necessarily for multiple sub-steps It is to execute completion in synchronization, but can execute at different times, the execution sequence in these sub-steps or stage It is not necessarily and successively carries out, but can be at least part wheel of the sub-step or stage of other steps or other steps Stream alternately executes.
In one embodiment, Fig. 7 is referred to, the application provides a kind of brightness regulating apparatus 700 of display screen, the device Include:
Relation data obtains module 710, uses the relation data between the time for obtaining screen body brightness data and shielding body;
Brightness data determining module 720, for determining the screen body brightness data at current time according to relation data;
Adjustment parameter determining module 730, for the screen body brightness data and preset object brightness number according to current time According to the adjustment parameter of determining screen body brightness;
Luminance adjustment module 740, for according to adjustment parameter by the brightness regulation of display screen to object brightness.
In one embodiment, shield body brightness data and shield body and use the generating mode of the relation data between the time, packet It includes:
When the screen body to preset quantity carries out degradation, the brightness data of every piece of screen body is obtained, and records every piece of screen The corresponding screen body of the brightness data of body uses the time.
The corresponding screen body of brightness data of the brightness data for shielding body according to every piece and every piece of screen body generates screen body using the time Brightness data and screen body use the relation data between the time.
In one embodiment, the adjustment parameter for shielding body brightness includes luminance compensation data and/or the operating voltage for shielding body.
In one embodiment, shielding body brightness data and screen body using the relation data between the time is to shield under preset gray scale Body brightness data uses the functional relation of time change with screen body.
In one embodiment, brightness data determining module 720 is also used to associative function relationship, according to current time Grayscale, screen body determine the screen body brightness data at current time using time and original luminance data.
In one embodiment, adjustment parameter is luminance compensation data.Adjustment parameter determining module 730, is also used to basis It is corresponding bright that the screen body brightness data at current time and preset object brightness data generate the screen body brightness data at current time Spend offset data.
Luminance adjustment module 740 is also used to the corresponding luminance compensation data write-in of the screen body brightness data at current time To update storage the luminance compensation data in device in memory;When electric on a display screen, the screen body brightness number at current time is read According to corresponding luminance compensation data by the brightness regulation of display screen to object brightness.
In one embodiment, adjustment parameter is screen body running voltage.Adjustment parameter determining module 730, be also used to every Preset time determines screen body running voltage according to the screen body brightness data at current time and preset object brightness data;
Luminance adjustment module 740 is also used to adjust screen body running voltage by the driving IC of display screen, by the bright of display screen Degree is adjusted to object brightness.
In one embodiment, screen body running voltage includes the first supply voltage VDD, second source voltage VSS, gamma electricity Any of pressure, data voltage Vdata.
In one embodiment, display screen is equipped with light sensor.The device further includes that environmental light brightness obtains module, is used Shield current environmental light brightness locating for body in obtaining by light sensor.
Adjustment parameter determining module 730 is also used to the screen body brightness data according to current time, preset object brightness number According to and current environmental light brightness, determine screen body brightness adjustment parameter.
The specific of brightness regulating apparatus about display screen limits the brightness regulation that may refer to above for display screen The restriction of method, details are not described herein.Modules in the brightness regulating apparatus of above-mentioned display screen can be fully or partially through Software, hardware and combinations thereof are realized.Above-mentioned each module can be embedded in the form of hardware or independently of the place in computer equipment It manages in device, can also be stored in a software form in the memory in computer equipment, in order to which processor calls execution or more The corresponding operation of modules.
In one embodiment, a kind of display screen is provided, display screen includes display unit and controller, controller and aobvious Show that component is electrically connected, controller includes memory and processor, is stored with computer program in memory, which executes meter The method and step in above-described embodiment is realized when calculation machine program.
In one embodiment, a kind of display device, including above-mentioned display screen are provided.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated Machine program realizes the method and step in above-described embodiment when being executed by processor.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, To any reference of memory, storage, database or other media used in each embodiment provided herein, Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms, Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (10)

1. a kind of brightness adjusting method of display screen, which is characterized in that the described method includes:
It obtains screen body brightness data and shields body and use the relation data between the time;
The screen body brightness data at current time is determined according to the relation data;
According to the screen body brightness data at the current time and preset object brightness data, the adjusting of the screen body brightness is determined Parameter;
According to the adjustment parameter by the brightness regulation of the display screen to object brightness.
2. the method according to claim 1, wherein the screen body brightness data and screen body used between the time The generating mode of relation data, comprising:
When the screen body to preset quantity carries out degradation, the brightness data of every piece of screen body is obtained, and records every piece of screen The corresponding screen body of the brightness data of body uses the time;
The corresponding screen body of brightness data of the brightness data and every piece of screen body that shield body according to described every piece is generated using the time The screen body brightness data and screen body use the relation data between the time.
3. the method according to claim 1, wherein the screen body brightness data and screen body used between the time Relation data is the functional relation that the screen body brightness data uses time change with the screen body under preset gray scale.
4. according to the method described in claim 3, it is characterized in that, the screen for determining current time according to the relation data Body brightness data, comprising:
It is true using time and original luminance data according to the grayscale at the current time, the screen body in conjunction with the functional relation The screen body brightness data at the fixed current time.
5. the method according to claim 1, wherein the adjustment parameter is luminance compensation data;
The screen body brightness data according to the current time and preset object brightness data, determine the screen body brightness Adjustment parameter, comprising:
The current time is generated according to the screen body brightness data at the current time and the preset object brightness data Shield the corresponding luminance compensation data of body brightness data;
It is described according to the adjustment parameter by the brightness regulation of the display screen to object brightness, comprising:
The corresponding luminance compensation data of the screen body brightness data at the current time are written in memory to update the storage Luminance compensation data in device;
When electric on the display screen, the corresponding luminance compensation data of screen body brightness data for reading the current time will be described The brightness regulation of display screen is to object brightness.
6. the method according to claim 1, wherein the adjustment parameter is screen body running voltage;
The screen body brightness data according to the current time and preset object brightness data, determine the screen body brightness Adjustment parameter, comprising:
Institute is determined according to the screen body brightness data and the preset object brightness data at the current time every preset time State screen body running voltage;
It is described according to the adjustment parameter by the brightness regulation of the display screen to object brightness, comprising:
The screen body running voltage is adjusted by the driving IC of the display screen, the brightness regulation of the display screen is bright to target Degree.
7. according to the method described in claim 6, it is characterized in that, the screen body running voltage include the first supply voltage VDD, Any of second source voltage VSS, gamma electric voltage, data voltage Vdata.
8. method according to any one of claims 1 to 7, which is characterized in that the display screen is equipped with light sensor, institute State method further include:
Current environmental light brightness locating for the screen body is obtained by the light sensor;
The screen body brightness data according to the current time and preset object brightness data, determine the screen body brightness Adjustment parameter, comprising:
It is bright according to the screen body brightness data at the current time, the preset object brightness data and the current environment Degree, determines the adjustment parameter of the screen body brightness.
9. a kind of brightness regulating apparatus of display screen, which is characterized in that described device includes:
Relation data obtains module, uses the relation data between the time for obtaining screen body brightness data and shielding body;
Brightness data determining module, for determining the screen body brightness data at current time according to the relation data;
Adjustment parameter determining module, for according to the current time screen body brightness data and preset object brightness data, Determine the adjustment parameter of the screen body brightness;
Luminance adjustment module, for according to the adjustment parameter by the brightness regulation of the display screen to object brightness.
10. a kind of display screen, which is characterized in that the display screen includes display unit and controller, the controller with it is described Display unit electrical connection, the controller include memory, processor and storage on a memory and can transport on a processor Capable computer program, the processor realize any one of claims 1 to 8 the method when executing the computer program The step of.
CN201910367728.0A 2019-05-05 2019-05-05 Brightness adjusting method, device and the display screen of display screen Pending CN110164367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910367728.0A CN110164367A (en) 2019-05-05 2019-05-05 Brightness adjusting method, device and the display screen of display screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910367728.0A CN110164367A (en) 2019-05-05 2019-05-05 Brightness adjusting method, device and the display screen of display screen

Publications (1)

Publication Number Publication Date
CN110164367A true CN110164367A (en) 2019-08-23

Family

ID=67633410

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910367728.0A Pending CN110164367A (en) 2019-05-05 2019-05-05 Brightness adjusting method, device and the display screen of display screen

Country Status (1)

Country Link
CN (1) CN110164367A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110706637A (en) * 2019-10-28 2020-01-17 昆山国显光电有限公司 Display panel brightness compensation method, compensation device and display device
CN110853581A (en) * 2019-11-06 2020-02-28 深圳市华星光电半导体显示技术有限公司 Method for adjusting brightness of display panel and storage medium
CN111063295A (en) * 2019-12-31 2020-04-24 深圳市华星光电半导体显示技术有限公司 Driving device and driving method of light emitting diode array panel
CN111477171A (en) * 2020-04-17 2020-07-31 深圳市华星光电半导体显示技术有限公司 Picture display method and picture display device
CN111883054A (en) * 2020-07-28 2020-11-03 华兴源创(成都)科技有限公司 Compensation method and compensation device of display panel
CN112188133A (en) * 2020-09-29 2021-01-05 北京小米移动软件有限公司 Video acquisition method and device, electronic equipment and storage medium
CN112562587A (en) * 2020-12-11 2021-03-26 昆山国显光电有限公司 Display panel brightness compensation method and device and display panel
CN112599090A (en) * 2020-12-17 2021-04-02 深圳创维-Rgb电子有限公司 Anti-ghost processing method and device based on OLED screen body
CN114333708A (en) * 2021-11-30 2022-04-12 北京德为智慧科技有限公司 Display brightness obtaining method, automatic adjusting method and related equipment
CN116504178A (en) * 2023-06-25 2023-07-28 广东保伦电子股份有限公司 LED screen module consistency correction method, computer equipment and readable storage medium
CN116704955A (en) * 2023-08-04 2023-09-05 宜宾邦华智慧科技有限公司 Display aging compensation method for display screen
WO2023206317A1 (en) * 2022-04-29 2023-11-02 京东方科技集团股份有限公司 Display panel and aging compensation method therefor, and display apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103198790A (en) * 2013-03-15 2013-07-10 向运明 Self-illumination display device and method for revising inconsistence of luminance of display units
CN105741773A (en) * 2014-12-29 2016-07-06 乐金显示有限公司 Organic light emitting diode display device
CN106057135A (en) * 2016-07-26 2016-10-26 维沃移动通信有限公司 Display brightness controlling method and mobile terminal
CN106531069A (en) * 2016-12-29 2017-03-22 上海天马有机发光显示技术有限公司 Control chip, control method, display device and control host machine
CN106847175A (en) * 2017-03-01 2017-06-13 京东方科技集团股份有限公司 Electroluminescent display panel and its uniformity of luminance compensation process, system
CN109461406A (en) * 2018-12-17 2019-03-12 Oppo广东移动通信有限公司 Display methods, device, electronic equipment and medium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103198790A (en) * 2013-03-15 2013-07-10 向运明 Self-illumination display device and method for revising inconsistence of luminance of display units
CN105741773A (en) * 2014-12-29 2016-07-06 乐金显示有限公司 Organic light emitting diode display device
CN106057135A (en) * 2016-07-26 2016-10-26 维沃移动通信有限公司 Display brightness controlling method and mobile terminal
CN106531069A (en) * 2016-12-29 2017-03-22 上海天马有机发光显示技术有限公司 Control chip, control method, display device and control host machine
CN106847175A (en) * 2017-03-01 2017-06-13 京东方科技集团股份有限公司 Electroluminescent display panel and its uniformity of luminance compensation process, system
CN109461406A (en) * 2018-12-17 2019-03-12 Oppo广东移动通信有限公司 Display methods, device, electronic equipment and medium

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110706637A (en) * 2019-10-28 2020-01-17 昆山国显光电有限公司 Display panel brightness compensation method, compensation device and display device
CN110853581A (en) * 2019-11-06 2020-02-28 深圳市华星光电半导体显示技术有限公司 Method for adjusting brightness of display panel and storage medium
CN110853581B (en) * 2019-11-06 2021-03-16 深圳市华星光电半导体显示技术有限公司 Method for adjusting brightness of display panel and storage medium
CN111063295A (en) * 2019-12-31 2020-04-24 深圳市华星光电半导体显示技术有限公司 Driving device and driving method of light emitting diode array panel
CN111477171A (en) * 2020-04-17 2020-07-31 深圳市华星光电半导体显示技术有限公司 Picture display method and picture display device
CN111477171B (en) * 2020-04-17 2021-08-24 深圳市华星光电半导体显示技术有限公司 Picture display method and picture display device
CN111883054A (en) * 2020-07-28 2020-11-03 华兴源创(成都)科技有限公司 Compensation method and compensation device of display panel
CN112188133B (en) * 2020-09-29 2023-10-17 北京小米移动软件有限公司 Video acquisition method and device, electronic equipment and storage medium
CN112188133A (en) * 2020-09-29 2021-01-05 北京小米移动软件有限公司 Video acquisition method and device, electronic equipment and storage medium
CN112562587A (en) * 2020-12-11 2021-03-26 昆山国显光电有限公司 Display panel brightness compensation method and device and display panel
CN112599090A (en) * 2020-12-17 2021-04-02 深圳创维-Rgb电子有限公司 Anti-ghost processing method and device based on OLED screen body
CN114333708A (en) * 2021-11-30 2022-04-12 北京德为智慧科技有限公司 Display brightness obtaining method, automatic adjusting method and related equipment
WO2023206317A1 (en) * 2022-04-29 2023-11-02 京东方科技集团股份有限公司 Display panel and aging compensation method therefor, and display apparatus
CN116504178A (en) * 2023-06-25 2023-07-28 广东保伦电子股份有限公司 LED screen module consistency correction method, computer equipment and readable storage medium
CN116504178B (en) * 2023-06-25 2023-09-05 广东保伦电子股份有限公司 LED screen module consistency correction method, computer equipment and readable storage medium
CN116704955A (en) * 2023-08-04 2023-09-05 宜宾邦华智慧科技有限公司 Display aging compensation method for display screen
CN116704955B (en) * 2023-08-04 2023-10-13 宜宾邦华智慧科技有限公司 Display aging compensation method for display screen

Similar Documents

Publication Publication Date Title
CN110164367A (en) Brightness adjusting method, device and the display screen of display screen
US10796622B2 (en) Display system with compensation techniques and/or shared level resources
US10319307B2 (en) Display system with compensation techniques and/or shared level resources
KR102593264B1 (en) Device for compensating for degradation and organic light emitting display comprising the device
CN103871358B (en) OLED and deterioration compensation method thereof
US8477086B2 (en) Organic electroluminescence display
EP1780690B1 (en) Flat display apparatus and picture quality controlling method based on panel defects
CN112955825B (en) Gamma correction method, gamma correction device and gamma correction system
US9711073B2 (en) Display panel and method and system for correcting defects on the display panel
CN105393296B (en) Display panel with compensation technology
CN111192554B (en) Gamma adjusting method and device for display panel and display equipment
CN110310601A (en) Improve method, apparatus, computer and the medium of display brightness homogeneity
CN103871363B (en) Organic LED display device and driving method thereof
CN107909964A (en) A kind of display compensation method of display panel and device
CN106537488B (en) Display device and its driving method
CN101183511B (en) Systems and methods for adjusting display parameters of an active matrix organic light emitting diode panel
JP2011523720A (en) Compensation method for multi-color electroluminescent display
CN108140348A (en) Light emitting display device
CN113228152B (en) Device and method for controlling screen brightness
JP2008139861A (en) Active matrix display device using organic light-emitting element and method of driving same using organic light-emitting element
CN109036244A (en) Mura compensation method, device and the computer equipment of camber display screen
CN108877631A (en) Mura compensation method, device, computer equipment and the storage medium of display screen
US11668995B2 (en) Optical compensation method for display screen, storage medium, and electronic device
CN111640391A (en) Display screen display adjusting method and system
CN110197640A (en) Brightness adjusting method, device and the display screen of display screen

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190823

RJ01 Rejection of invention patent application after publication