CN106297669A - A kind of compensation circuit, display device and compensation method - Google Patents
A kind of compensation circuit, display device and compensation method Download PDFInfo
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- CN106297669A CN106297669A CN201610972114.1A CN201610972114A CN106297669A CN 106297669 A CN106297669 A CN 106297669A CN 201610972114 A CN201610972114 A CN 201610972114A CN 106297669 A CN106297669 A CN 106297669A
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- driving
- voltage
- reference voltage
- compensation
- display floater
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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]
- G09G3/3225—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] using an active matrix
- G09G3/3258—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] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
Abstract
The present invention provides a kind of and compensates circuit, display device and compensation method.Wherein, compensate circuit to include: at least one driving IC of the different viewing areas of display floater input driving voltage；Drive the compensation IC that IC is connected respectively with at least one, for receiving the first reference voltage that driving IC generates, be compensated voltage according to the first reference voltage and the normal voltage prestored, and the Voltage Feedback driving IC to correspondence will be compensated；Described driving IC obtains the second reference voltage for compensating described first reference voltage according to described compensation voltage, and utilizes the second reference voltage to drive the viewing area that display floater is corresponding to show.The reference voltage driving IC is compensated by the scheme of the present embodiment, the reference voltage making each driving IC is consistent, and then each driving IC also can be obtained unanimously based on the driving voltage that reference voltage determines, thus solve the display screen driving IC more, because of temperature impact, the phenomenon of split screen display available occurs.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of compensation circuit, display device and compensation method.
Background technology
Current a part of display screen is driven IC to be responsible for driving, when this kind of display screen operating temperature reaches certain by more than one
After degree, owing to driving IC processing technology there are differences, cause the driving voltage of inside to be affected by temperature in various degree, drive
Galvanic electricity pressure is the most inconsistent, can make to occur in display effect windowing phenomena, i.e. one piece display screen there will be multiple brightness not
Equal viewing area, this problem has had a strong impact on the experience effect of user.
The solution of prior art is to arrange compensation circuit for each driving IC, revises temperature and produces driving voltage
Impact.The principle compensating circuit is according to a theoretical value and the reference voltage of driving IC, to the actual driving electricity driving IC
It is pressed into Row sum-equal matrix.But under the influence of temperature, the reference voltage of each IC also can be influenced to different extents, and this can make not
With driving the driving voltage of IC after compensation, a part of diversity still can be there is.
Particularly drive the AMOLED display screen given out light by electric current, for reducing what the usual driving voltage of power consumption would generally be arranged
The lowest, cause AMOLED display screen very sensitive to the fluctuation of data voltage, drive when AMOLED display screen uses two or many
During dynamic IC, the difference of the driving voltage that the impact of this temperature is carried can be amplified so that brightness disproportionation phenomenon can be fairly obvious.
Summary of the invention
Present invention aim to address that the existing display screen driving IC the phenomenon of split screen display available occurs because of temperature impact more.
For achieving the above object, on the one hand, the present invention provides a kind of and compensates circuit, including:
For at least one driving IC of the different viewing areas of display floater input driving voltage；
With at least one compensation IC driving IC to be connected respectively described, it is used for receiving the first benchmark electricity driving IC to generate
Pressure, is compensated voltage according to described first reference voltage and the normal voltage prestored, and by described compensation Voltage Feedback
To corresponding driving IC；
Described driving IC obtains the second benchmark for compensating described first reference voltage according to described compensation voltage
Voltage, and utilize described second reference voltage to drive the viewing area that display floater is corresponding to show.
Further, described driving IC is no less than two, and each driving IC is respectively to the different viewing areas of display floater
Input driving voltage；
Described compensation IC is used for receiving the first reference voltage that each driving IC generates respectively, and according to described normal voltage
Determine the compensation voltage of the first reference voltage that each driving IC exports, and compensate Voltage Feedback to corresponding by determine
Drive IC；
Each driving IC is for mending its first reference voltage according to the compensation voltage got from described compensation IC
Repay and obtain the second reference voltage, and utilize this second reference voltage to drive the viewing area that display floater is corresponding to show.
Further, each driving IC all includes: the first reference voltage follower and second reference voltage arithmetical unit；
Described compensation IC includes: compensate voltage operational device one to one with described driving IC；
Wherein, each driving IC is by its first reference voltage follower compensation voltage operational device of correspondence in compensation IC
Send the first reference voltage；
In described compensation IC, each compensation voltage operational device is after receiving the first reference voltage, by the first reference voltage with
The normal voltage prestored contrasts, and generates a compensation voltage, and by this compensation voltage to the of the driving IC of its correspondence
Two benchmark voltage operational devices feed back；
Each driving IC is by its second reference voltage arithmetical unit, according to the compensation voltage received, to its first benchmark
Voltage compensates, and obtains the second reference voltage.
Further, each driving IC the most also includes: gamma electric voltage actuator；
After second reference voltage of each driving IC obtains the second reference voltage arithmetical unit, this second reference voltage is sent
To driving the gamma electric voltage actuator of IC belonging to it, gamma electric voltage actuator is made to carry out colourity calibration according to the second reference voltage.
On the other hand, the present invention also provides for a kind of display device, including:
Display floater, and it is applied to the above-mentioned compensation circuit of described display floater.
Further, described display floater is active matrix organic light-emitting diode/active-matrix organic light emitting diode
AMOLED display floater.
Further, the compensation IC of described compensation circuit is arranged on the flexible PCB of described display device.
Additionally, the present invention also provides for a kind of automobile, the vehicle-carrying display screen of described automobile uses above-mentioned display device.
Additionally, the present invention also provides for a kind of compensation method, it is applied to above-mentioned display device, including:
The compensation IC that is connected with the driving IC of described display device is set, by this compensation IC for:
Receive the first reference voltage driving IC to generate, according to described first reference voltage and the normal voltage prestored
It is compensated voltage, and by described compensation Voltage Feedback to corresponding driving IC；
Wherein, described driving IC obtains second for compensating described first reference voltage according to described compensation voltage
Reference voltage, and utilize described second reference voltage to drive the viewing area that display floater is corresponding to show.
Further, described driving IC is no less than two, and each driving IC is respectively to the different viewing areas of display floater
Input driving voltage；
The compensation IC that is connected with the driving IC of described display device is set, by this compensation IC specifically for:
Receive the first reference voltage that each driving IC generates respectively, and determine often according to the normal voltage prestored
The compensation voltage of the first reference voltage of individual driving IC output, and compensate, by determine, the driving IC that Voltage Feedback is the most corresponding；
Wherein, each driving IC is for according to the compensation voltage got from described compensation IC, to its first reference voltage
Compensate and obtain the second reference voltage, and utilize this second reference voltage to drive the viewing area that display floater is corresponding to show
Show.
The such scheme of the present invention has the advantages that
The reference voltage driving IC is first compensated by the solution of the present invention so that the reference voltage one of each driving IC
Cause or convergence is consistent, and then each driving IC also can be leveled off to unanimously based on the driving voltage that reference voltage determines, thus
Solve display screen, because of temperature impact, the phenomenon of split screen display available occurs.
Accompanying drawing explanation
Fig. 1 is the structural representation compensating circuit of the present invention；
Fig. 2 is the detailed structure view compensating circuit of the present invention.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention is directed to the easy temperature influences of display screen driving IC in prior art more and asking of windowing phenomena occurs
Topic, it is provided that a solution.
On the one hand, embodiments of the invention provide one to compensate circuit, as it is shown in figure 1, include:
For at least one driving IC of the different viewing areas of display floater input driving voltage, (Fig. 1 drives with three
Dynamic IC is as example)；
The compensation IC that IC is connected respectively is driven, for receiving the first reference voltage driving IC to generate, root with at least one
It is compensated voltage according to this first reference voltage and the normal voltage prestored, and each compensation Voltage Feedback is driven to corresponding
Dynamic IC；
Drive IC the first reference voltage compensated to obtain the second reference voltage for compensating voltage according to it, and utilize
Second reference voltage drives the viewing area that display floater is corresponding to show.
Compared to prior art, the reference voltage driving IC is first compensated by the scheme of the present embodiment so that each
Drive IC reference voltage is consistent or convergence consistent, and then make driving voltage that each driving IC determines based on reference voltage also
Can level off to consistent, thus solve display screen, because of temperature impact, the phenomenon of split screen display available occurs.
Specifically, the driving IC of the present embodiment is no less than two, and each driving IC is respectively to the different displays of display floater
Region input driving voltage；
Compensating IC is one, for receiving the first reference voltage that each driving IC generates respectively, and according to this standard electric
Pressure determines the compensation voltage of the first reference voltage that each drivings IC export, and the compensation Voltage Feedback that will determine extremely correspondence
Driving IC；
Each driving IC is for compensating its first reference voltage according to the compensation voltage got from compensation IC
To the second reference voltage, and this second reference voltage is utilized to drive the viewing area that display floater is corresponding to show.
Obviously design based on such scheme, it is appreciated that compensate an IC normal voltage based on its inside, right
The reference voltage of each driving IC compensates, and therefore the compensation standard of the reference voltage of each driving IC is consistent, is mending
After repaying, each drives the reference voltage of IC can reach or reach approximately mutually same number value.
Needing exist for being described, under the influence of temperature, the normal voltage compensating IC more or less can be affected,
Therefore, after the reference voltage of IC may being driven to compensate each, it is the poorest that actual reference voltage value and theoretical value exist
Different, but each drives the IC reference voltage meeting same numerical value of convergence.Should be based on its inside as an example it is assumed that compensate IC in theory
Each is driven the reference voltage compensation of the IC reference voltage to 1V, under the influence of temperature, after may finally compensating by normal voltage
For 0.9V, although 0.9V there are differences with theoretical value 1V, but the reference voltage of each driving IC is 0.9V, is driving display
Time, the brightness of display screen also can be made to reach consistent, still can solve the problem that windowing phenomena.
Obviously, compensation method based on the present embodiment, it is possible to effectively eliminate high temperature and cause display screen that brightness disproportionation occurs
Problem.
Below in conjunction with an actual application, the compensation scheme of the present embodiment is described in detail.
As in figure 2 it is shown, each driving IC of the present embodiment all includes: the first reference voltage follower and the second reference voltage
Arithmetical unit；
Compensate IC to include: compensate voltage operational device one to one with described driving IC；
Wherein, each driving IC is by its first reference voltage follower compensation voltage operational device of correspondence in compensation IC
Send the first reference voltage；
In compensation IC, each compensation voltage operational device is after receiving the first reference voltage, by the first reference voltage with in advance
The normal voltage of storage contrasts, and generates a compensation voltage, and by this compensation voltage to second base of the driving IC of its correspondence
Quasi-voltage operational device feeds back；
Each driving IC is by its second reference voltage arithmetical unit, according to the compensation voltage received, to its first benchmark
Voltage compensates, and obtains the second reference voltage.
Additionally, the driving IC of the present embodiment can also realize colourity calibration function.I.e. with further reference to Fig. 2, the present invention's
Each driving IC all can further include: gamma electric voltage actuator；
After second reference voltage of each driving IC obtains the second reference voltage arithmetical unit, this second reference voltage is sent
To driving the gamma electric voltage actuator of IC belonging to it, gamma electric voltage actuator is made to carry out colourity calibration according to the second reference voltage.
It is above the present embodiment and compensates the introduction of circuit, it should be understood that be that the present embodiment is not limited to Fig. 1 and Fig. 2
Shown implementation, the present embodiment drives IC and compensation IC quantity not to limit, and compensation IC can be multiple, bears respectively
The driving IC of duty varying number compensates.
On the other hand, another embodiment of the present invention also drawings one display device includes above-mentioned compensation circuit, based on this
Bright compensation circuit, the brightness of the display picture of the display device of the present embodiment has higher homogeneity, solves because of temperature
Affect and windowing phenomena occurs.
In actual applications, the display floater of the present embodiment can be active matrix organic light-emitting diode/active-matrix
Organic light emitting diode AMOLED display floater.Owing to the AMOLED display floater of the present invention efficiently solves temperature to display screen
The interference problem of brightness, therefore has and is more widely applied scene.Such as, the AMOLED display floater of the present embodiment can be answered
It is used on car-mounted display.Under Yi Ban, car-mounted display requiring, the maximum operating temperature of display screen is 90 degrees Celsius, in office to ensure
What can reliably work under driving environment.It is based on the conceptual design of the present embodiment so that AMOLED display floater is permissible
As car-mounted display so that the advantage of AMOLED display surface wide viewing angle is not fully exerted, and (general vehicle-carrying display screen is at operator seat
The side put, therefore the requirement to visual angle is higher).
Based on such scheme, the present invention also provides for a kind of automobile, and the vehicle-carrying display screen of this automobile uses the invention described above
Display device.
Clearly as the vehicle-carrying display screen of the present invention the most still can stably export the display picture of brightness uniformity
Face, thus provide better experience effect to driver.
Additionally, the present invention also provides for a kind of compensation method being applied to the above-mentioned display device of the present invention, including:
The compensation IC that is connected with the driving IC of described display device is set, by this compensation IC for:
Receive the first reference voltage driving IC to generate, according to described first reference voltage and the normal voltage prestored
It is compensated voltage, and by described compensation Voltage Feedback to corresponding driving IC；
Wherein, described driving IC obtains second for compensating described first reference voltage according to described compensation voltage
Reference voltage, and utilize described second reference voltage to drive the viewing area that display floater is corresponding to show.
Specifically, above-mentioned driving IC is no less than two, and each driving IC is defeated to the different viewing areas of display floater respectively
Enter driving voltage；
The compensation IC that is connected with the driving IC of described display device is set, by this compensation IC specifically for:
Receive the first reference voltage that each driving IC generates respectively, and determine often according to the normal voltage prestored
The compensation voltage of the first reference voltage of individual driving IC output, and compensate, by determine, the driving IC that Voltage Feedback is the most corresponding；
Wherein, each driving IC is for according to the compensation voltage got from described compensation IC, to its first reference voltage
Compensate and obtain the second reference voltage, and utilize this second reference voltage to drive the viewing area that display floater is corresponding to show
Show.
Obviously, the driving method of the present invention is corresponding with the drive circuit of the present invention, therefore, it is possible to realize identical technology
Effect.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (10)
1. one kind compensates circuit, it is characterised in that including:
For at least one driving IC of the different viewing areas of display floater input driving voltage；
With at least one compensation IC driving IC to be connected respectively described, it is used for receiving the first reference voltage driving IC to generate, root
It is compensated voltage according to described first reference voltage and the normal voltage prestored, and by described compensation Voltage Feedback to corresponding
Driving IC；
Described driving IC obtains the second reference voltage for compensating described first reference voltage according to described compensation voltage,
And utilize described second reference voltage to drive the viewing area that display floater is corresponding to show.
Compensation circuit the most according to claim 1, it is characterised in that
Described driving IC is no less than two, and each driving IC inputs driving voltage respectively to the different viewing areas of display floater；
Described compensation IC is for receiving the first reference voltage that each driving IC generates respectively, and determines according to described normal voltage
Go out the compensation voltage of the first reference voltage of each driving IC output, and compensate Voltage Feedback to corresponding driving by determine
IC；
Each driving IC is for compensating its first reference voltage according to the compensation voltage got from described compensation IC
To the second reference voltage, and this second reference voltage is utilized to drive the viewing area that display floater is corresponding to show.
Compensation circuit the most according to claim 2, it is characterised in that
Each driving IC all includes: the first reference voltage follower and second reference voltage arithmetical unit；
Described compensation IC includes: compensate voltage operational device one to one with described driving IC；
Wherein, each driving IC is sent to compensating compensation voltage operational device corresponding in IC by its first reference voltage follower
First reference voltage；
In described compensation IC, each compensation voltage operational device is after receiving the first reference voltage, by the first reference voltage with in advance
The normal voltage of storage contrasts, and generates a compensation voltage, and by this compensation voltage to second base of the driving IC of its correspondence
Quasi-voltage operational device feeds back；
Each driving IC is by its second reference voltage arithmetical unit, according to the compensation voltage received, to its first reference voltage
Compensate, obtain the second reference voltage.
Compensation circuit the most according to claim 3, it is characterised in that
Each driving IC the most also includes: gamma electric voltage actuator；
After second reference voltage of each driving IC obtains the second reference voltage arithmetical unit, this second reference voltage is sent to it
The affiliated gamma electric voltage actuator driving IC, makes gamma electric voltage actuator carry out colourity calibration according to the second reference voltage.
5. a display device, it is characterised in that including:
Display floater, and it is applied to the compensation circuit as described in any one of claim 1-4 of described display floater.
Display device the most according to claim 5, it is characterised in that
Described display floater is active matrix organic light-emitting diode/active-matrix organic light emitting diode AMOLED display surface
Plate.
Display device the most according to claim 5, it is characterised in that
The compensation IC of described compensation circuit is arranged on the flexible PCB of described display device.
8. an automobile, it is characterised in that the vehicle-carrying display screen of described automobile uses showing as described in any one of claim 5-7
Showing device.
9. a compensation method, is applied to the display device described in any one of claim 5-7, it is characterised in that including:
The compensation IC that is connected with the driving IC of described display device is set, by this compensation IC for:
Receive the first reference voltage driving IC to generate, obtain according to described first reference voltage and the normal voltage prestored
Compensate voltage, and by described compensation Voltage Feedback to corresponding driving IC；
Wherein, described driving IC obtains the second benchmark for compensating described first reference voltage according to described compensation voltage
Voltage, and utilize described second reference voltage to drive the viewing area that display floater is corresponding to show.
Compensation method the most according to claim 9, it is characterised in that
Described driving IC is no less than two, and each driving IC inputs driving voltage respectively to the different viewing areas of display floater；
The compensation IC that is connected with the driving IC of described display device is set, by this compensation IC specifically for:
Receive the first reference voltage that each driving IC generates respectively, and determine each driving according to the normal voltage prestored
The compensation voltage of the first reference voltage of dynamic IC output, and compensate, by determine, the driving IC that Voltage Feedback is the most corresponding；
Wherein, each driving IC is for according to the compensation voltage got from described compensation IC, carrying out its first reference voltage
Compensation obtains the second reference voltage, and utilizes this second reference voltage to drive the viewing area that display floater is corresponding to show.
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| CN201610972114.1A CN106297669A (en) | 2016-10-31 | 2016-10-31 | A kind of compensation circuit, display device and compensation method |
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| CN201610972114.1A CN106297669A (en) | 2016-10-31 | 2016-10-31 | A kind of compensation circuit, display device and compensation method |
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| CN107331365A (en) * | 2017-08-30 | 2017-11-07 | 昆山龙腾光电有限公司 | A kind of removing method of source electrode driver, display device and its split-screen display |
| CN108630137A (en) * | 2017-03-22 | 2018-10-09 | 上海和辉光电有限公司 | The double drive chip compensation circuit and display device of display panel |
| CN108986731A (en) * | 2018-08-07 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of display panel and its compensation method, display device |
| CN111696470A (en) * | 2020-07-10 | 2020-09-22 | 京东方科技集团股份有限公司 | Display module and display device |
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| CN108630137B (en) * | 2017-03-22 | 2021-05-18 | 上海和辉光电股份有限公司 | Dual-drive chip compensation circuit of display panel and display device |
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| CN108986731A (en) * | 2018-08-07 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of display panel and its compensation method, display device |
| CN111696470A (en) * | 2020-07-10 | 2020-09-22 | 京东方科技集团股份有限公司 | Display module and display device |
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Application publication date: 20170104 |