CN108962136A - Luminance compensation method and device - Google Patents
Luminance compensation method and device Download PDFInfo
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- CN108962136A CN108962136A CN201811142947.0A CN201811142947A CN108962136A CN 108962136 A CN108962136 A CN 108962136A CN 201811142947 A CN201811142947 A CN 201811142947A CN 108962136 A CN108962136 A CN 108962136A
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of El Displays (AREA)
Abstract
The invention discloses a kind of luminance compensation method and devices, belong to field of display technology.The method may include: according to the corresponding relationship of the environment temperature of the photoelectric sensor got and temperature and offset brightness, determine the target offset brightness of the photoelectric sensor.The actual measurement brightness of the pixel unit got can be then modified according to the target offset brightness, obtain amendment brightness.The amendment brightness eliminates the influence for the actual measurement brightness that environment temperature detects photoelectric sensor, and accuracy is higher, therefore accuracy when being compensated based on the amendment brightness to the driving signal of the pixel unit is higher, avoids compensating distortion.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of luminance compensation method and device.
Background technique
Display panel includes multiple pixel units, and each pixel unit may include luminescence unit and driving transistor, hair
Light unit can shine under the driving of driving transistor.But as display panel uses the growth of time, luminescence unit
Luminous efficiency can reduce.
In the related technology, in order to compensate for the light emission luminance of luminescence unit, photoelectric sensor is typically provided in display device
And compensating module.The photoelectric sensor can detecte the light emission luminance of luminescence unit, and the light emission luminance that will test is sent to
Compensating module.The compensating module can mend the driving signal for being loaded onto the luminescence unit according to the light emission luminance received
It repays.
But the photoelectric sensor will receive temperature influence, lead to the photoelectricity when detecting the light emission luminance of luminescence unit
The accuracy of light emission luminance detected by sensor is lower, when being compensated so as to cause compensating module based on the light emission luminance
There may be compensating distortions.
Summary of the invention
The embodiment of the invention provides a kind of luminance compensation method and devices, can solve the compensating module pair of the relevant technologies
Accuracy lower problem when the driving signal of pixel unit compensates.The technical solution is as follows:
On the one hand, a kind of luminance compensation method is provided, which comprises
Obtain the actual measurement brightness for the pixel unit that photoelectric sensor detects and the environment temperature of the photoelectric sensor
Degree；
According to the corresponding relationship of temperature and offset brightness, the corresponding target offset brightness of the environment temperature is determined；
The amendment brightness of the pixel unit is determined according to the actual measurement brightness and the target offset brightness；
The driving signal of the pixel unit is compensated according to the amendment brightness.
Optionally, described to determine that the amendment of the pixel unit is bright according to the actual measurement brightness and the target offset brightness
Degree, comprising:
The difference of the actual measurement brightness and the target offset brightness is determined as to the amendment brightness of the pixel unit.
Optionally, before the actual measurement brightness for the pixel unit that the acquisition photoelectric sensor detects, the method packet
It includes:
The light emission luminance for controlling the pixel unit remains unchanged；
Obtain the brightness that the photoelectric sensor detects at different ambient temperatures；
It is determined as the difference of brightness and the light emission luminance that the photoelectric sensor detects to deviate brightness, obtains institute
It states temperature and deviates the corresponding relationship of brightness.
It is optionally, described that the driving signal of the pixel unit is compensated according to the amendment brightness, comprising:
According to the difference of the amendment brightness and object brightness, offset voltage is determined；
It is compensated according to voltage of the offset voltage to the driving signal of the pixel unit.
On the other hand, a kind of luminance compensating mechanism is provided, described device includes:
First obtain module, for obtain the pixel unit that photoelectric sensor detects actual measurement brightness and the light
The environment temperature of electric transducer；
First determining module determines that the environment temperature is corresponding for the corresponding relationship according to temperature and offset brightness
Target offset brightness；
Second determining module, for determining the pixel unit according to the actual measurement brightness and the target offset brightness
Correct brightness；
Compensating module, for being compensated according to the amendment brightness to the driving signal of the pixel unit.
Optionally, second determining module, is used for:
The difference of the actual measurement brightness and the target offset brightness is determined as to the amendment brightness of the pixel unit.
Optionally, described device further include:
Control module, the light emission luminance for controlling the pixel unit remain unchanged；
Second obtains module, the brightness detected at different ambient temperatures for obtaining the photoelectric sensor；
The difference of third determining module, brightness and the light emission luminance for detecting the photoelectric sensor determines
To deviate brightness, obtaining the temperature and deviating the corresponding relationship of brightness.
Optionally, the compensating module is used for:
According to the difference of the amendment brightness and object brightness, offset voltage is determined；
It is compensated according to voltage of the offset voltage to the driving signal of the pixel unit.
Another aspect, provides a kind of luminance compensating mechanism, and described device includes: processing component, memory and storage
On the memory and the computer program that can run on the processing component, the processing component execute the computer
The luminance compensation method as described in terms of above-mentioned is realized when program.
In another aspect, providing a kind of computer readable storage medium, it is stored in the computer readable storage medium
Instruction, when the computer readable storage medium is run on computers, so that computer is executed as described in terms of above-mentioned
Luminance compensation method.
In another aspect, provide a kind of display device, the display device includes: display panel and such as institute in terms of above-mentioned
The luminance compensating mechanism stated.
Technical solution bring beneficial effect provided in an embodiment of the present invention includes at least:
The embodiment of the invention provides a kind of luminance compensation method and devices, can be according to the photoelectric sensor got
The corresponding relationship of environment temperature and temperature and offset brightness, determines the target offset brightness of the photoelectric sensor.It then can be with
The actual measurement brightness of the pixel unit got is modified according to the target offset brightness, obtains amendment brightness.The amendment is bright
Degree eliminates the influence for the actual measurement brightness that environment temperature detects photoelectric sensor, and accuracy is higher, therefore is repaired based on this
Accuracy when positive brightness compensates the driving signal of the pixel unit is higher, avoids compensating distortion.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of pixel unit in a kind of display device provided in an embodiment of the present invention；
Fig. 2 is the top view of pixel unit in a kind of display device provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of luminance compensation method provided in an embodiment of the present invention；
Fig. 4 is the flow chart of another luminance compensation method provided in an embodiment of the present invention；
Fig. 5 is a kind of temperature of photoelectric sensor provided in an embodiment of the present invention and the graph of relation of offset brightness；
Fig. 6 be a kind of photoelectric sensor provided in an embodiment of the present invention detect actual measurement brightness and pixel unit shine
The graph of relation of brightness；
Fig. 7 is the graph of relation of the light emission luminance of a kind of amendment brightness provided in an embodiment of the present invention and pixel unit；
Fig. 8 is a kind of luminance compensating mechanism structural schematic diagram provided in an embodiment of the present invention；
Fig. 9 is another luminance compensating mechanism structural schematic diagram provided in an embodiment of the present invention；
Figure 10 is the structural schematic diagram of another luminance compensating mechanism provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is the structural schematic diagram of pixel unit in a kind of display device provided in an embodiment of the present invention, and Fig. 2 is the present invention
The top view of pixel unit in a kind of display device that embodiment provides.As depicted in figs. 1 and 2, each of display device
Pixel unit may include luminescence unit 01 and driving transistor 02, which can be thin film transistor (TFT) (thin
Film transistor, TFT).The driving transistor 02 can drive luminescence unit 01 to shine, what which issued
Light can be projected from luminous zone.As shown in Figure 1, the pixel unit in display device can be set between backboard and cover board.
Can be seen that each pixel unit in the display device from Fig. 1 and Fig. 2 can also include photoelectric sensor 03,
The photoelectric sensor 03 can be connect with the compensation device (not shown in figure 1) in display device, can detecte luminescence unit 01
The brightness of the light of sending, and the brightness that can be will test is sent to the compensation device.Compensation device in turn can be according to this
Brightness compensates the driving signal of driving transistor.
Optionally, which can be Organic Light Emitting Diode (OLED).The OLED generally comprises anode, shines
Layer ((emitting layer, EL) and cathode.Wherein, driving transistor is connect with the anode of the OLED, and luminescent layer can be in sun
It shines under the driving of pole and cathode.The photoelectric sensor 03 can be photodiode (photo diode, PD), can incite somebody to action
The optical signal detected is converted to electric signal.
Fig. 3 is a kind of flow chart of luminance compensation method provided in an embodiment of the present invention, and this method can be applied to Fig. 1 institute
The compensation device for the display device shown.As shown in figure 3, this method may include:
The ring of step 101, the actual measurement brightness for obtaining the pixel unit that photoelectric sensor detects and the photoelectric sensor
Border temperature.
As shown in Figure 1, photoelectric sensor can be set in each pixel unit of display device, which can
With the actual measurement brightness for the light that luminescence unit in real-time detection pixel unit issues.The available photoelectric sensor detection of compensation device
The actual measurement brightness arrived.Also, display surface at least one temperature sensor, such as display device can also be set in display device
A temperature sensor has can be set in the display area of plate, which connect with compensation device.The temperature sensor
It can detecte the environment temperature of photoelectric sensor, and the environment temperature that can be will test is sent to compensation device.
Step 102, according to temperature and offset brightness corresponding relationship, determine that the corresponding target offset of the environment temperature is bright
Degree.
The temperature and the corresponding relationship of offset brightness can be and examine at different ambient temperatures to display device in advance
It measures.
Step 103, the amendment brightness that the pixel unit is determined according to the actual measurement brightness and the target offset brightness.
The amendment brightness can be the difference of the actual measurement brightness and the target offset brightness.
Step 104 compensates the driving signal of the pixel unit according to the amendment brightness.
Compensation device can determine offset voltage, and then can basis according to the difference of the amendment brightness and object brightness
The offset voltage compensates the voltage of the driving signal of the pixel unit.
In conclusion this method can be according to the light got the embodiment of the invention provides a kind of luminance compensation method
The environment temperature and temperature of electric transducer and the corresponding relationship of offset brightness, determine that the target offset of the photoelectric sensor is bright
Degree.The actual measurement brightness of the pixel unit got can be then modified according to the target offset brightness, obtain correcting bright
Degree.The amendment brightness eliminates the influence for the actual measurement brightness that environment temperature detects photoelectric sensor, and accuracy is higher, because
Accuracy when this compensates the driving signal of the pixel unit based on the amendment brightness is higher, avoids compensating distortion.
Fig. 4 is the flow chart of another luminance compensation method provided in an embodiment of the present invention, and this method can be applied to Fig. 1
Shown in display device compensation device.Referring to fig. 4, this method may include:
Step 201, the light emission luminance for controlling pixel unit remain unchanged, and obtain photoelectric sensor at different ambient temperatures
The brightness detected.
The brightness that the photoelectric sensor detects is referred to as receiving light value or sensing value (Sense value).The environment temperature
Degree is mainly influenced by the luminescence unit in pixel unit, and the fluorescent lifetime of usual luminescence unit is longer, and light emission luminance is higher, should
The environment temperature of photoelectric sensor is higher, and the detection accuracy of the photoelectric sensor is lower.
Since the brightness that photoelectric sensor detects will receive the influence of environment temperature, in embodiments of the present invention,
The detection performance of the photoelectric sensor in the display device can be detected before display device factory.In detection
In the process, the light emission luminance that can control pixel unit remains unchanged, and constantly adjustment ring border temperature, then obtains photoelectric sensing
The brightness that device detects at different ambient temperatures.
It is exemplary, the driving signal of fixed voltage can be provided to the driving transistor of each pixel unit, so that each pixel
The light emission luminance of the luminescence unit of unit is constant brightness.Later, display device can constantly be adjusted by temperature adjustment device
Environment temperature.Exemplary, which can be test base station, which has heating function, can be right
The environment temperature of photoelectric sensor in the display device is adjusted.During the adjustment environment temperature, compensation device
The brightness that available photoelectric sensor detects under each environment temperature.For example, can control the luminance of pixel unit
Degree is constant brightness h0, is adjusted separately environment temperature by temperature adjustment device are as follows: t1, t2 and t3.Then compensation device is each
The brightness that the photoelectric sensor got under a environment temperature detects can be as shown in table 1.As it can be seen from table 1 working as environment
When temperature is t1, the brightness that the photoelectric sensor that compensation device is got detects is h01.
Table 1
| Environment temperature | The brightness that optical sensor detects |
| t1 | h01 |
| t2 | h02 |
| t3 | h03 |
Step 202 is determined as the difference of brightness and the light emission luminance that the photoelectric sensor detects to deviate brightness, obtains
To the corresponding relationship of temperature and offset brightness.
It, can be by photoelectric sensor at a temperature of the first environment for the first environment temperature in the varying environment temperature
The difference of the light emission luminance of the brightness and pixel unit that detect is determined as deviating brightness, and then obtains the first environment temperature institute
Corresponding offset brightness.For other environment temperatures, its corresponding offset brightness can be determined using identical method, it is final to be
It can determine that temperature and deviate the corresponding relationship of brightness.Compensation device can record the corresponding relationship in table form, can also
To record the corresponding relationship by function curve, it is not limited in the embodiment of the present invention.
It is exemplary, it is assumed that when the detection performance to photoelectric sensor detects, the luminescence unit of each pixel unit
Light emission luminance is constant brightness h0.According to corresponding relationship shown in table 1 it is found that photoelectric sensor exists when environment temperature is t1
The brightness detected when environment temperature is t1 is h01, then compensation device can determine that offset corresponding to environment temperature t1 is bright
Spend Δ h01 are as follows: Δ h01=h01-h0.Offset brightness corresponding for other environment temperatures, compensation device can use identical
Method determines that the embodiment of the present invention repeats no more this.The temperature that the compensation device is obtained based on corresponding relationship shown in table 1 with
The corresponding relationship for deviating brightness can be as shown in table 2.In table 2, Δ h02 meets: Δ h02=h01-h0；Δ h03 meets: Δ h03
=h03-h0.
Table 2
| Temperature | Deviate brightness |
| t1 | Δh01 |
| t2 | Δh02 |
| t3 | Δh03 |
Alternatively, compensation device is after determining the corresponding offset brightness of each environment temperature, it can also be to the number determined
According to carrying out curve fitting, obtains temperature and deviate the function curve of brightness.It is exemplary, temperature which is fitted with
The function curve for deviating brightness can be as shown in Figure 5.Referring to Fig. 5, when temperature is t1, which is Δ h01.Also,
From fig. 5, it can be seen that temperature is higher, offset brightness is bigger namely temperature is higher, the brightness of photoelectric sensor detected and picture
The difference of the plain actual light emission luminance of unit is bigger, and detection accuracy is lower.
It should be noted that the temperature that compensation device obtains and offset are bright even if the light emission luminance of each pixel unit is different
The corresponding relationship of degree can also be identical.Therefore, when the detection performance to photoelectric sensor detects, can optional one it is solid
Determine brightness to be detected.
The ring of step 203, the actual measurement brightness for obtaining the pixel unit that photoelectric sensor detects and the photoelectric sensor
Border temperature.
In embodiments of the present invention, during display device actually uses, photoelectric sensor can be with real-time detection picture
The actual measurement brightness of luminescence unit in plain unit.Temperature sensor in display device can be with the ring of the real-time detection photoelectric sensor
Border temperature.Compensation device can in real time or periodically obtain the actual measurement brightness for the pixel unit that photoelectric sensor detects,
And the environment temperature of the photoelectric sensor.
Exemplary, compensation device can obtain actual measurement brightness and the photoelectric sensing of pixel unit every t duration
The environment temperature of device.
Step 204, according to temperature and offset brightness corresponding relationship, determine that the corresponding target offset of the environment temperature is bright
Degree.
It, can be by the corresponding pass of temperature and offset brightness after compensation device gets the current environment temperature of photoelectric sensor
In system, the corresponding offset brightness of the current environment temperature is determined as target offset brightness.
It is exemplary, it is assumed that the temperature and deviate brightness corresponding relationship it is as shown in table 2, compensation device currently get certain
The environment temperature of the photoelectric sensor of a pixel unit is t1.Then the corresponding relationship according to shown in table 2 is it is found that environment temperature t1
Corresponding target offset brightness is Δ h01.
Or, it is assumed that the temperature and the corresponding relationship of offset brightness are as shown in figure 5, compensation device gets photoelectric sensor
Current environment temperature is t1, then environment temperature t1 can be brought into the temperature and deviate the function song of brightness by compensation device
Line, obtaining the corresponding target offset brightness of environment temperature t1 is Δ h01.
Step 205, the amendment brightness that the pixel unit is determined according to the actual measurement brightness and the target offset brightness.
After compensation device determines the corresponding target offset brightness of environment temperature, which can be detected
The difference of actual measurement brightness and the target offset brightness is determined as the amendment brightness of the pixel unit.Since target offset brightness is pre-
The offset that the brightness that the environment temperature first detected causes photoelectric sensor to detect generates, and the amendment brightness is that actual measurement is bright
The difference of degree and target offset brightness, therefore the amendment brightness eliminates the influence of environment temperature, precision is higher.
Fig. 6 be a kind of photoelectric sensor provided in an embodiment of the present invention detect actual measurement brightness and pixel unit shine
The graph of relation of brightness.When increasing due to the light emission luminance of pixel unit, the temperature of the pixel unit can also increase therewith, from
And the environment temperature of the photoelectric sensor is caused to increase, influence the detection accuracy of the photoelectric sensor.With reference to Fig. 6 as can be seen that
The light emission luminance of pixel unit is bigger, and the rate of rise of the actual measurement brightness is higher.
Exemplary, referring to Fig. 6, when the light emission luminance of pixel unit is h1, the actual measurement that photoelectric sensor detects is bright
Degree is h11；When the light emission luminance of pixel unit is h2, the actual measurement brightness that photoelectric sensor detects is h22；When pixel unit
When light emission luminance is h3, the actual measurement brightness that photoelectric sensor detects is h33.Since brightness is bigger, the environment of photoelectric sensor
Temperature is higher, therefore the increase of the light emission luminance with pixel unit, and the actual measurement brightness that photoelectric sensor detects also gradually increases
Greatly, and the growth rate of the actual measurement brightness can also increase with the growth of light emission luminance.As shown in fig. 6, the difference of h2 and h1
Equal to the difference of h3 and h2, the difference of h22 and h11 are less than the difference of h33 and h22.
Fig. 7 is the graph of relation of the light emission luminance of a kind of amendment brightness provided in an embodiment of the present invention and pixel unit.
Referring to Fig. 7, as the light emission luminance of pixel unit is gradually increased, which is also gradually increased, and the amendment brightness
Rate of rise is fixed value.
Exemplary, referring to Fig. 7, corresponding amendment brightness is h10 when the light emission luminance of pixel unit is h1, the amendment brightness
H10 meets: h10=h11- Δ h01.Wherein, the temperature of the pixel unit is t1 at this time.H11 is what photoelectric sensor detected
Brightness is surveyed, corresponding offset brightness when being t1 that Δ h01 is environment temperature.As shown in fig. 7, the light emission luminance when pixel unit is
When h2, the amendment brightness that compensation device is got is h20；When the light emission luminance of pixel unit is h3, compensation device is got
Amendment brightness is h30.And h2 is equal with the difference of h2 equal to h3 with the difference of h1, the difference between h20 and h10 is also equal to h30
Difference between h20.The accuracy that comparison diagram 6 and Fig. 7 can be seen that the amendment brightness is higher compared to actual measurement brightness.
Step 206, according to the difference of the amendment brightness and object brightness, determine offset voltage.
In embodiments of the present invention, the object brightness of pixel unit can be previously stored in compensation device, the target is bright
Degree refers to the desired illumination brightness of the pixel unit, i.e., light emission luminance when aging does not occur.The compensation device can be according to this
The difference for correcting brightness and object brightness, determines offset voltage.The offset voltage and the difference are positively correlated, i.e., the difference is bigger,
The offset voltage is bigger.
Optionally, the voltage of driving signal and the corresponding relationship of desired illumination brightness be can store in compensation device, mended
Repaying device can be true by desired illumination brightness corresponding to the voltage of the current driving signal of pixel unit according to the corresponding relationship
It is set to object brightness, and then the difference of the amendment brightness and object brightness can be calculated.
Step 207 is compensated according to voltage of the offset voltage to the driving signal of the pixel unit.
The driving signal of pixel unit refers to the driving signal that the driving transistor for the pixel unit applies.Compensation device
It can be compensated according to voltage of the offset voltage being calculated to the driving signal of the pixel unit, so that pixel unit
Light emission luminance is identical as the object brightness of the pixel unit.It is obtained after being a cancellation the influence of environment temperature due to the offset voltage
, therefore the accuracy of the offset voltage is higher, and then compensates according to light emission luminance of the offset voltage to pixel unit
When reliability it is higher.
Above-mentioned steps 201 to step 207 describes the compensation process compensated to the driving signal of a pixel unit,
For each pixel unit in display device, above-mentioned steps 201 to method shown in step 207 can be used and compensate,
The embodiment of the present invention repeats no more this.
In conclusion this method can be according to the light got the embodiment of the invention provides a kind of luminance compensation method
The environment temperature and temperature of electric transducer and the corresponding relationship of offset brightness, determine that the target offset of the photoelectric sensor is bright
Degree.The actual measurement brightness of the pixel unit got can be then modified according to the target offset brightness, obtain correcting bright
Degree.The amendment brightness eliminates the influence for the actual measurement brightness that environment temperature detects photoelectric sensor, and accuracy is higher, because
Accuracy when this compensates the driving signal of the pixel unit based on the amendment brightness is higher, avoids compensating distortion.
The embodiment of the invention provides a kind of luminance compensating mechanisms, as shown in figure 8, the apparatus may include:
First obtains module 301, for obtaining actual measurement brightness and the light of the pixel unit that photoelectric sensor detects
The environment temperature of electric transducer.
First determining module 302 determines that the environment temperature is corresponding for the corresponding relationship according to temperature and offset brightness
Target offset brightness.
Second determining module 303, for determining repairing for the pixel unit according to the actual measurement brightness and the target offset brightness
Positive brightness.
Compensating module 304, for being compensated according to the amendment brightness to the driving signal of the pixel unit.
In conclusion the device can be according to the light got the embodiment of the invention provides a kind of luminance compensating mechanism
The environment temperature and temperature of electric transducer and the corresponding relationship of offset brightness, determine that the target offset of the photoelectric sensor is bright
Degree.The actual measurement brightness of the pixel unit got can be then modified according to the target offset brightness, obtain correcting bright
Degree.The amendment brightness eliminates the influence for the actual measurement brightness that environment temperature detects photoelectric sensor, and accuracy is higher, because
Accuracy when this compensates the driving signal of the pixel unit based on the amendment brightness is higher, avoids compensating distortion.
Optionally, which can be used for: the actual measurement brightness and the difference of the target offset brightness is true
It is set to the amendment brightness of the pixel unit.
Fig. 9 is the structural schematic diagram of another luminance compensating mechanism provided in an embodiment of the present invention.Referring to Fig. 9, the device
Can also include:
Control module 305, the light emission luminance for controlling the pixel unit remain unchanged.
Second obtains module 306, the brightness detected at different ambient temperatures for obtaining the photoelectric sensor.
The difference of third determining module 307, brightness and the light emission luminance for detecting the photoelectric sensor determines
To deviate brightness, obtaining the temperature and deviating the corresponding relationship of brightness.
Optionally, which can be used for:
According to the difference of the amendment brightness and object brightness, offset voltage is determined.
It is compensated according to voltage of the offset voltage to the driving signal of the pixel unit.
In conclusion the device can be according to the light got the embodiment of the invention provides a kind of luminance compensating mechanism
The environment temperature and temperature of electric transducer and the corresponding relationship of offset brightness, determine that the target offset of the photoelectric sensor is bright
Degree.The actual measurement brightness of the pixel unit got can be then modified according to the target offset brightness, obtain correcting bright
Degree.The amendment brightness eliminates the influence for the actual measurement brightness that environment temperature detects photoelectric sensor, and accuracy is higher, because
Accuracy when this compensates the driving signal of the pixel unit based on the amendment brightness is higher, avoids compensating distortion.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
It with the specific work process of each module, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
The embodiment of the invention also provides a kind of luminance compensating mechanisms, as shown in Figure 10, the apparatus may include: processing group
Part 401, memory 402 and it is stored in the computer program that can be run on the memory 402 and on the processing component 401
4021, when which executes the computer program 4021 realization display device as shown in above method embodiment
Luminance compensation method.
In embodiments of the present invention, which can be chip stand-alone integrated in display device, Huo Zheke
To be integrated on the System on Chip/SoC (system on chip, SOC) or video card of display device；Or the luminance compensating mechanism
It can be sequence controller (timing controller, TCON) or the micro-control unit for being integrated in TCON
In (microcontroller Unit, MCU).
The embodiment of the invention provides a kind of computer readable storage medium, it is stored in the computer readable storage medium
Instruction, when the computer readable storage medium is run on computers, so that the computer implemented method such as above method is implemented
The luminance compensation method of display device shown in example.
The embodiment of the invention also provides a kind of display device, which may include: display panel and brightness
Compensation device, the luminance compensating mechanism can for as Fig. 8 to Figure 10 it is any shown in luminance compensating mechanism.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of luminance compensation method, which is characterized in that the described method includes:
Obtain the actual measurement brightness for the pixel unit that photoelectric sensor detects and the environment temperature of the photoelectric sensor；
According to the corresponding relationship of temperature and offset brightness, the corresponding target offset brightness of the environment temperature is determined；
The amendment brightness of the pixel unit is determined according to the actual measurement brightness and the target offset brightness；
The driving signal of the pixel unit is compensated according to the amendment brightness.
2. the method according to claim 1, wherein described bright according to the actual measurement brightness and the target offset
Degree determines the amendment brightness of the pixel unit, comprising:
The difference of the actual measurement brightness and the target offset brightness is determined as to the amendment brightness of the pixel unit.
3. the method according to claim 1, wherein the pixel unit detected in the acquisition photoelectric sensor
Actual measurement brightness before, which comprises
The light emission luminance for controlling the pixel unit remains unchanged；
Obtain the brightness that the photoelectric sensor detects at different ambient temperatures；
It is determined as the difference of brightness and the light emission luminance that the photoelectric sensor detects to deviate brightness, obtains the temperature
The corresponding relationship of degree and offset brightness.
4. method according to any one of claims 1 to 3, which is characterized in that it is described according to the amendment brightness to the picture
The driving signal of plain unit compensates, comprising:
According to the difference of the amendment brightness and object brightness, offset voltage is determined；
It is compensated according to voltage of the offset voltage to the driving signal of the pixel unit.
5. a kind of luminance compensating mechanism, which is characterized in that described device includes:
First obtain module, for obtain the pixel unit that photoelectric sensor detects actual measurement brightness and the photoelectric transfer
The environment temperature of sensor；
First determining module determines the corresponding target of the environment temperature for the corresponding relationship according to temperature and offset brightness
Deviate brightness；
Second determining module, for determining the amendment of the pixel unit according to the actual measurement brightness and the target offset brightness
Brightness；
Compensating module, for being compensated according to the amendment brightness to the driving signal of the pixel unit.
6. device according to claim 5, which is characterized in that second determining module is used for:
The difference of the actual measurement brightness and the target offset brightness is determined as to the amendment brightness of the pixel unit.
7. device according to claim 5, which is characterized in that described device further include:
Control module, the light emission luminance for controlling the pixel unit remain unchanged；
Second obtains module, the brightness detected at different ambient temperatures for obtaining the photoelectric sensor；
The difference of third determining module, brightness and the light emission luminance for detecting the photoelectric sensor is determined as partially
Brightness is moved, the temperature is obtained and deviates the corresponding relationship of brightness.
8. a kind of luminance compensating mechanism, which is characterized in that described device includes: processing component, memory and is stored in described
On memory and the computer program that can be run on the processing component, when the processing component executes the computer program
Realize the luminance compensation method as described in Claims 1-4 is any.
9. a kind of computer readable storage medium, which is characterized in that instruction is stored in the computer readable storage medium, when
When the computer readable storage medium is run on computers, so that computer is executed as described in Claims 1-4 is any
Luminance compensation method.
10. a kind of display device, which is characterized in that the display device includes: display panel and such as claim 5 to 8 times
Luminance compensating mechanism described in one.
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Application publication date: 20181207 |