CN106816137B - Display device and the method for increasing the display device brightness homogeneity - Google Patents
Display device and the method for increasing the display device brightness homogeneity Download PDFInfo
- Publication number
- CN106816137B CN106816137B CN201710239655.8A CN201710239655A CN106816137B CN 106816137 B CN106816137 B CN 106816137B CN 201710239655 A CN201710239655 A CN 201710239655A CN 106816137 B CN106816137 B CN 106816137B
- Authority
- CN
- China
- Prior art keywords
- display panel
- voltage
- data signal
- display device
- display
- 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.)
- Active
Links
Classifications
-
- 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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
-
- 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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The disclosure provides a kind of display device and increases the method for the display device brightness homogeneity.The display device includes: display panel and processing unit, wherein the display panel includes supply voltage detection module, the supply voltage detection module is used to detect the direct current pressure drop of the display panel, and the direct current pressure drop is input to the processing unit and is handled；The processing unit exports the offset voltage of the voltage data signal of the display panel corresponding position according to the direct current pressure drop, and the voltage data signal of the display panel is corrected by the offset voltage.The brightness homogeneity of display device can be improved in the disclosure.
Description
Technical field
This disclosure relates to which field of display technology, in particular to a kind of display device and increases the display device brightness
The method of homogeneity.
Background technique
With rapidly improving for display technology, the semiconductor component technology as display device core is also flown therewith
The progress of jump property.For existing display device, Organic Light Emitting Diode (Organic Light Emitting
Diode, OLED) it is used as a kind of current mode luminescent device, because of its self-luminous, quick response, wide viewing angle and can make
On flexible substrates the features such as and be applied in high-performance display field more and more.OLED can be divided by driving method
PMOLED (Passive Matrix Driving OLED, passive matrix drive Organic Light Emitting Diode) and AMOLED (Active
Matrix Driving OLED, active matrix-driven organic light-emitting diode) two kinds, since displayer has low system
The advantages that causing sheet, high answer speed, power saving, the DC driven that can be used for portable device, operating temperature range big etc. and can
Hoping becomes the next-generation novel flat panel display for replacing LCD (liquid crystal display, liquid crystal display).
However, the prior art is for large-sized displayer, since there are certain electricity for backboard power supply line
Resistance, when OLED device shines, the driving current of all pixels is to be mentioned by scan drive cell by drive control line ELVDD
It is supplied to each pixel unit.Therefore, in above-mentioned light emitting phase, the pixel list at the scan drive cell position is inputted
The voltage of member is relative to transmission range scan drive cell compared with the pixel unit (such as last column pixel unit) at distant positions
Voltage it is high.This phenomenon is referred to as direct current pressure drop (IR Drop).
Since the voltage of scan drive cell input pixel unit is related to the electric current for flowing through each pixel unit,
The size of current that the pixel unit that IR Drop will lead to different location flows through difference, so that displayer is being shown
When generate luminance difference, for example, when the first row pixel all light, the brightness of display can be from left to right successively dimmed.Above-mentioned brightness
The phenomenon that difference as moire phenomenon (mura).The quality that will lead to display picture in this way reduces, thus to the quality of display
It is adversely affected with display effect.
Therefore, there is also the places that has much room for improvement for technical solution in the prior art.
It should be noted that information is only used for reinforcing the reason to the background of the disclosure disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
A kind of method for being designed to provide display device and increasing the display device brightness homogeneity of the disclosure, in turn
One or more is overcome the problems, such as caused by the limitation and defect due to the relevant technologies at least to a certain extent.
Other characteristics and advantages of the disclosure will be apparent from by the following detailed description, or partially by this public affairs
The practice opened and acquistion.
According to one aspect of the disclosure, a kind of display device, including display panel and processing unit are provided, wherein described
Display panel includes supply voltage detection module, and the supply voltage detection module is used to detect the direct current of the display panel
Pressure drop, and the direct current pressure drop is input to the processing unit and is handled；The processing unit is according to the direct current
Pressure drop exports the offset voltage of the voltage data signal of the display panel corresponding position, by described in offset voltage amendment
The voltage data signal of display panel.
In a kind of exemplary embodiment of the disclosure, the supply voltage detection module is detected including the first supply voltage
Line and second source voltage detecting line are respectively used to detect the first supply voltage of the display panel and second source voltage,
And by first supply voltage and the second source voltage input to the processing unit.
In a kind of exemplary embodiment of the disclosure, the display device further includes source electrode drive circuit, wherein described
First supply voltage detection line is disposed in proximity to one end of the source electrode drive circuit, the second source voltage detecting line setting
In the other end far from the source electrode drive circuit.
In a kind of exemplary embodiment of the disclosure, the display device further includes gate driving circuit, wherein described
The vertical cabling of second source voltage detecting line is connected to the processing unit by the bypass cabling of the gate driving circuit.
In a kind of exemplary embodiment of the disclosure, the processing unit is sequence controller.
In a kind of exemplary embodiment of the disclosure, the sequence controller includes analog-digital converter, the mould
Quasi- digital quantizer is used to the direct current pressure drop of simulation being converted to digital signal.
In a kind of exemplary embodiment of the disclosure, the display panel includes latticed supply voltage cabling,
In, the length of the supply voltage cabling of the display panel is directly proportional to the resistance of the display panel.
In a kind of exemplary embodiment of the disclosure, the display device is OLED display.
According to one aspect of the disclosure, a kind of method increasing above-mentioned display device brightness homogeneity is provided, comprising:
Under pure color picture, the display panel is chosen up to a little less as target point；
Under different data signal voltage, the relationship between the brightness of the target point and the direct current pressure drop is bent for test
Line；
Under same group of data signal voltage, the brightness of the display panel and the length on first side of display panel are measured
Relation curve between degree；
According to the relational expression between the brightness of the display panel and the voltage data signal, the data-signal is obtained
Relational expression between the length on the first side of voltage and the display panel；
According to the relational expression between the length on the first side of the voltage data signal and the display panel, obtain described aobvious
Show the offset voltage of the voltage data signal of panel corresponding position；
The voltage data signal of the display panel is corrected according to the offset voltage.
In a kind of exemplary embodiment of the disclosure, the target point is located at the middle position of the display panel.
In a kind of display device of embodiment of the disclosure, corresponding voltage data signal is obtained by detection IR Drop
Offset voltage, and according to the offset voltage correct display panel corresponding position voltage data signal so that display surface
Plate brightness shows more uniform.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.It should be evident that the accompanying drawings in the following description is only the disclosure
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 shows the schematic diagram of ELVDD cabling in the prior art.
Fig. 2 shows the schematic diagrames of display device a kind of in disclosure exemplary embodiment.
Fig. 3 shows the schematic diagram of another display device in disclosure exemplary embodiment.
Fig. 4 shows a kind of flow chart for the method for increasing display device brightness homogeneity in disclosure exemplary embodiment.
Fig. 5-Fig. 6 shows a kind of signal for the method for increasing display device brightness homogeneity in disclosure exemplary embodiment
Figure.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；Described feature, structure or characteristic can be with any suitable
Mode be incorporated in one or more embodiments.In the following description, many details are provided to provide to this
Disclosed embodiment is fully understood.It will be appreciated, however, by one skilled in the art that can be with technical solution of the disclosure
And omit it is one or more in the specific detail, or can be using other methods, constituent element, device, step etc..
It should be pointed out that in the accompanying drawings, for the size that may clearly exaggerate layer and region of diagram.And it can be with
Understand, when element or layer be referred in another element or layer "upper", it can be directly in other elements, or may exist
Intermediate layer.Additionally, it is appreciated that it can be directly at other when element or layer be referred in another element or layer "lower"
Under element, or there may be the layer of more than one centre or elements.In addition, it is to be appreciated that when layer or element are referred to as
Two layers or two elements " between " when, it can between two layers or two elements unique layer, or there may also be one
Above middle layer or element.Similar reference marker indicates similar element in the whole text.
Fig. 1 shows the schematic diagram of ELVDD cabling in the prior art.
The luminous efficiency of (full name in English: Electroluminescent, abbreviation: EL) device luminous at present is relatively low, is
Increase the light emission luminance of display panel, needs to drive thin film transistor (TFT) (full name in English: Driving Thin Film
Transistor, referred to as: Driving TFT) one biggish DC source of output, and this need to Driving TFT mono- compared with
Big data voltage；When displayer part in normal work, in order to increase the light emission luminance of display panel so that
Driving TFT always works at saturation region, and this needs driver IC to supply a very high driving voltage
(Electroluminescent Voltage Device, referred to as: ELVDD)；In view of Driving TFT critical voltage with
Data voltage is all bigger, and to reach the requirement for meeting maximum data voltage, ELVDD is according to maximum data voltage at present
Come what is provided, it is not intended that the data voltage of other lower levels, therefore driver IC supply driving AMOLED is shown
The ELVDD of each frame picture of device is supplied with maximum ELVDD.
With the progress of epoch and technology, large scale, high-resolution displayer part are had gradually developed, accordingly
, large scale displayer be also required to larger size panel and greater number of pixel, panel conductor length is increasingly
Long, conductor resistance is also bigger, therefore, supply voltage inevitably generates voltage drop (IR Drop) on conducting wire, and
And the voltage drop of each pixel circuit is different, thus the supply voltage for causing each pixel circuit to obtain is different, thus identical
Voltage data signal input under, different pixel circuits has different electric currents, brightness output, and then leads to entire panel
Display brightness is uneven, and picture is different, and the IR Drop of pixel also can be and then different.
Fig. 2 shows the schematic diagrames of display device a kind of in disclosure exemplary embodiment.
As shown in Fig. 2, the display device 10 includes display panel 100 and processing unit 200, wherein the display panel
100 include supply voltage detection module 101, and the supply voltage detection module 101 is for detecting the straight of the display panel 100
Galvanic electricity pressure drop (IR Drop), and the direct current pressure drop is input to the processing unit 200 and is handled；The processing dress
Set the compensation electricity for the voltage data signal Data that 200 export 100 corresponding position of display panel according to the direct current pressure drop
Δ Data is pressed, the voltage data signal of the display panel 100 is corrected by the offset voltage Δ Data.
In the embodiment of the present invention, display panel 100 includes pixel unit, and supply voltage detection module 101 is for acquiring picture
The voltage of the power supply node of plain unit, and the voltage is sent to processing unit 200, so-called power supply node refers to preset be used for
The node connected to power supply；Processing unit 200 is used to determine the voltage variety of power supply node according to the voltage of power supply node, and
The direct current pressure drop of display panel 100 is determined based on the voltage variety, and corresponding pixel is modified according to the direct current pressure drop
The voltage data signal of unit compensates the voltage variety.
Organic Light Emitting Diode (Organic light emitting diode, OLED) display device exists in the prior art
During display, display panel (Panel) brightness can from the end Source IN to the end Source END due to the influence of IR drop
Taper off trend, and the brightness homogeneity of such Panel will can decrease.And the embodiment of the present disclosure passes through detection direct current pressure drop
Come obtain respective pixel unit voltage data signal offset voltage, can be improved the brightness homogeneity of display device.
Fig. 3 shows the schematic diagram of another display device in disclosure exemplary embodiment.
Wherein, display panel is for showing picture, including ELVDD bus, is made of in the matrix form multiple pixel units
Pixel unit array, ELVDD lead, the row for being fanned out to the area (Fanout), flexible printer circuit (FPC) and active area surrounding
Driving circuit (GOA) and electrostatic protection (ESD) circuit etc..Wherein, active area is also known as pixel region, is ELVDD bus and pixel
Region where cell array, the multiple pixel units for constituting pixel unit array are connected with ELVDD bus, and ELVDD is total
Line is cabling of the voltage of external power supply offer inside display panel, and ELVDD bus is connected to driving by ELVDD lead
IC is connected between active area and driving IC by the area Fanout, and the area Fanout is between driving IC and the ELVDD bus of active area
Lead where region.
In the embodiment shown in fig. 3, supply voltage detection module 101 includes the first supply voltage detection line (ELVDD1)
With second source voltage detecting line (ELVDD2), it is respectively used to detect the first supply voltage of the display panel and second source
Voltage, and by first supply voltage and the second source voltage input to the processing unit.
In the embodiment shown in fig. 3, the display device further includes source electrode drive circuit (Source Driver),
In, one end that the first supply voltage detection line (ELVDD1) is disposed in proximity to the source electrode drive circuit is (such as most lower
End), it is (such as most upper that the second source voltage detecting line (ELVDD2) is set to the other end far from the source electrode drive circuit
End).
It should be noted that, although being set to the bottom of source electrode drive circuit in Fig. 3 with ELVDD1, ELVDD2 is set
It is placed in for the top of the source electrode drive circuit and is illustrated, but in other embodiments, as long as ELVDD1 is disposed in proximity to
One end of source electrode drive circuit, ELVDD2 are set to the other end far from the source electrode drive circuit.
In the exemplary embodiment, the display device further includes gate driving circuit (Gate Driver), wherein institute
The vertical cabling for stating second source voltage detecting line (ELVDD2) can be by the bypass cabling (Pass of the gate driving circuit
Line) it is connected to the processing unit.Since ELVDD2 is located remotely from the other end of source electrode drive circuit, if not passing through grid
The bypass cabling of pole driving circuit is connected to the processing unit, will affect the width of the frame of display panel, only due to ELVDD2
There is voltage, be not formed into a loop, no electric current flows through, and cabling can be very thin, therefore it can pass through gate driving circuit
Bypass cabling is connected to the processing unit, to will not influence the frame width of display panel.
In the embodiment shown in fig. 3, the processing unit is sequence controller (TCON).But the disclosure is not limited to
This, can be any outside for being able to carry out data processing or internal data processor.
In the embodiment shown in fig. 3, the sequence controller (TCON) includes analog-digital converter (ADC), described
Analog-digital converter (ADC) is used to the direct current pressure drop of simulation being converted to digital signal.
Ultra-narrow frame display device is pursued with its brilliant visual experience by user.Currently, using COF (Chip On
Film, flip chip) technology to be to realize ultra-narrow frame.COF technology is will to drive IC (Integrated Circuit, integrated electricity
Road) it is fixed on the crystal grain mantle structure dress technology in flexible circuit board.The technology is introduced into display device, can reduce display dress
The size for the circuit region (also referred to as PAD region) set, to realize ultra-narrow frame.
The embodiment of the present invention inside Panel by increasing by 2 ELVDD detection lines (ELVDD1 and ELVDD2), a position
In the end Source IN (ELVDD1), one is located at the end Source END (ELVDD2), and the ELVDD2 at the end Source END passes through
The Pass line of Gate COF is connected on PCB, is ultimately connected on the ADC analog-digital converter on TCON.Due to this
ELVDD2 does not walk electric current, it is possible to cabling is connected from COF.
In the embodiment shown in fig. 3, the display panel includes latticed supply voltage cabling, wherein described aobvious
Show that the length of the supply voltage cabling of panel is directly proportional to the resistance of the display panel.Wherein, it is generally defaulted as latticed
ELVDD cabling can make the resistance R in display panel than more uniform, in this way, the length S and resistance R of the ELVDD line of Panel at
Proportional relation.But it's not limited to that for the disclosure, in other embodiments, is also possible to the supply voltage cabling of other shapes,
As long as it is that full panel is averagely laid with.
In the exemplary embodiment, the display device is OLED display.Organic Light Emitting Diode (OLED) becomes
Very popular emerging flat-panel screens product both at home and abroad, this is because OLED display has self-luminous, wide viewing angle, short reaction
Time, high-luminous-efficiency, wide colour gamut, low-work voltage, panel is thin, can make the panel of large scale and deflection and processing procedure is simple
Etc. characteristics, and it also have low cost potentiality.
Disclosure embodiment is to control the output of Data by monitoring the IR Drop of Panel, is showing Panel
Shi Liangdu can be more uniform, increases brightness homogeneity.Wherein, latticed ELVDD is designed, it is minimum by increasing Panel
The ELVDD detection line at end and top, the vertical cabling of detection line reduce impedance by the Pass line of Gate COF, most
The ELVDD in 2 detection lines can be acquired by TCON eventually, after carrying out data processing, the Data of the different location by changing output
To realize the brightness homogeneity for increasing Panel.
Using the technical solution of the embodiment of the present invention, pass through the ELVDD of real-time detection display panel least significant end and top
Supply voltage on lead, and data letter is adjusted according to the variation delta ELVDD of the least significant end and the supply voltage of top
Number Voltage Feedback to display panel ELVDD lead offset voltage, no matter so that display display panel active area is shown in what
Hold, the offset voltage for feeding back to display panel ELVDD lead can change with the variation of display picture, realize to display surface
Plate active area IR drop carries out dynamic compensation, thus make display panel active area that there is unified and stable ELVDD voltage, into
And effectively improve the display image quality of display device.
In addition, can also include other component in the display device in other exemplary embodiments of the disclosure.Cause
This, the technical solution for increasing more structures also belongs to the protection scope of the disclosure.
Fig. 4 shows a kind of flow chart for the method for increasing display device brightness homogeneity in disclosure exemplary embodiment.
As shown in figure 4, the method for the increase display device brightness homogeneity, may comprise steps of.
In the step s 100, under pure color picture, the display panel is chosen up to a little less as target point.
Here so-called pure color picture, the picture for referring to that entire display panel is shown are consistent, for example, be all white or
Person's black etc..
In the exemplary embodiment, the target point is located at the middle position of the display panel.It should be noted that this
In so-called middle position can be less accurate, the middle position of the display panel is located substantially at, because of human eye vision
It is so insensitive to the variation of the brightness of panel.
In step s 110, test is under different data signal voltage, the brightness of the target point and the DC voltage
Relation curve between drop.
In the step s 120, under same group of data signal voltage, the brightness and the display of the display panel are measured
Relation curve between the length on the first side of panel.
Since display panel is generally rectangle, there are two short sides and two long sides.In the embodiment of the present invention, first side
Refer to the short side of display panel, but the disclosure is not construed as limiting this.
In step s 130, it according to the relational expression between the brightness of the display panel and the voltage data signal, obtains
Relational expression between the length on the first side of the voltage data signal and the display panel.
In step S140, according to the relationship between the length on the first side of the voltage data signal and the display panel
Formula obtains the offset voltage of the voltage data signal of the display panel corresponding position.
In step S150, the voltage data signal of the display panel is corrected according to the offset voltage.
Fig. 5-Fig. 6 shows a kind of signal for the method for increasing display device brightness homogeneity in disclosure exemplary embodiment
Figure.
Firstly, under pure color picture, choosing among on panel such as Fig. 5 and being a little used as target point, test out different Data
Under, the relation curve between this brightness L and △ ELVDD；Then, the brightness L of panel is measured at same group of Data such as Fig. 6
With the relation curve of the length S of panel short side；And there are certain relational expressions by the brightness L and Data of panel, it is available at this time
Relational expression between Data and panel bond length S can make TCON export Data+ △ Data, so that panel luminance is aobvious
Show more uniform, increase brightness homogeneity.
The method for the increase display device brightness homogeneity that disclosure embodiment provides, by increasing ELVDD detection line,
IR Drop is compensated, panel luminance homogeneity is increased.
In addition, the detail of each step is corresponding aobvious in the method for above-mentioned increase display device brightness homogeneity
It is described in detail in showing device, therefore details are not described herein again.Moreover, although describing this in the accompanying drawings with particular order
Each step of method in open, still, this does not require that or implies must execute these steps in this particular order,
Or desired result could be realized by having to carry out step shown in whole.Additional or alternative, it is convenient to omit certain steps,
Multiple steps are merged into a step to execute, and/or a step is decomposed into execution of multiple steps etc..
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by appended
Claim is pointed out.
Claims (2)
1. it is a kind of increase display device brightness homogeneity method, which is characterized in that the display device include display panel and
Processing unit, wherein the display panel includes supply voltage detection module, the supply voltage detection module is for detecting institute
The direct current pressure drop of display panel is stated, and the direct current pressure drop is input to the processing unit and is handled；The processing
Device exports the offset voltage of the voltage data signal of the display panel corresponding position according to the direct current pressure drop, passes through institute
State the voltage data signal that offset voltage corrects the display panel；Wherein, which comprises
Under pure color picture, the display panel is chosen up to a little less as target point；
Test the relation curve under different data signal voltage, between the brightness of the target point and the direct current pressure drop；
Under same group of data signal voltage, measure the display panel brightness and first side of display panel length it
Between relation curve；
According to the relational expression between the brightness of the display panel and the voltage data signal, the voltage data signal is obtained
Relational expression between the length on first side of display panel；
According to the relational expression between the length on the first side of the voltage data signal and the display panel, the display surface is obtained
The offset voltage of the voltage data signal of plate corresponding position；
The voltage data signal of the display panel is corrected according to the offset voltage.
2. the method according to claim 1, wherein the target point is located at the interposition of the display panel
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239655.8A CN106816137B (en) | 2017-04-13 | 2017-04-13 | Display device and the method for increasing the display device brightness homogeneity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710239655.8A CN106816137B (en) | 2017-04-13 | 2017-04-13 | Display device and the method for increasing the display device brightness homogeneity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106816137A CN106816137A (en) | 2017-06-09 |
| CN106816137B true CN106816137B (en) | 2019-09-27 |
Family
ID=59114951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710239655.8A Active CN106816137B (en) | 2017-04-13 | 2017-04-13 | Display device and the method for increasing the display device brightness homogeneity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106816137B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230454A (en) * | 2017-07-11 | 2017-10-03 | 深圳市华星光电技术有限公司 | Display device and its driving method |
| CN109307587B (en) | 2017-07-26 | 2020-01-31 | 京东方科技集团股份有限公司 | Display panel detection method, device and system |
| CN107481686B (en) | 2017-08-21 | 2020-03-10 | 武汉华星光电技术有限公司 | Method for improving display state of liquid crystal panel, liquid crystal panel and liquid crystal display |
| CN108008203B (en) | 2017-11-27 | 2020-12-08 | 合肥鑫晟光电科技有限公司 | Detection circuit and voltage compensation method |
| CN108257558A (en) * | 2018-01-31 | 2018-07-06 | 昆山国显光电有限公司 | A kind of driving compensation circuit, method and its display device |
| US10796629B2 (en) * | 2018-07-31 | 2020-10-06 | Apple Inc. | Display panel voltage drop correction |
| US10643529B1 (en) * | 2018-12-18 | 2020-05-05 | Himax Technologies Limited | Method for compensation brightness non-uniformity of a display panel, and associated display device |
| CN111179826A (en) * | 2020-01-03 | 2020-05-19 | 京东方科技集团股份有限公司 | Display panel driving method, driving device and display device |
| CN111341234B (en) * | 2020-04-10 | 2021-07-23 | Tcl华星光电技术有限公司 | Test method and device based on display panel data mischarging |
| CN113936604B (en) * | 2020-06-29 | 2022-12-27 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN112164368A (en) | 2020-10-20 | 2021-01-01 | 北京集创北方科技股份有限公司 | Display driving device and electronic apparatus |
| CN112233617B (en) * | 2020-10-29 | 2021-11-16 | 维信诺科技股份有限公司 | Optical data compensation method and compensation device, storage medium and electronic equipment |
| CN114495794B (en) * | 2022-02-18 | 2023-12-26 | 京东方科技集团股份有限公司 | Display panel and display device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070126728A1 (en) * | 2005-12-05 | 2007-06-07 | Toppoly Optoelectronics Corp. | Power circuit for display and fabrication method thereof |
| US7872619B2 (en) * | 2006-11-01 | 2011-01-18 | Global Oled Technology Llc | Electro-luminescent display with power line voltage compensation |
| KR100941836B1 (en) * | 2008-05-19 | 2010-02-11 | 삼성모바일디스플레이주식회사 | Organic light emitting display device |
| CN101976546B (en) * | 2010-10-19 | 2012-08-22 | 友达光电股份有限公司 | Pixel circuits with power voltage drop compensation functions and luminous panel |
| KR101351247B1 (en) * | 2012-07-17 | 2014-01-14 | 삼성디스플레이 주식회사 | Organic light emitting display device and driving method thereof |
| CN104036727B (en) * | 2014-06-04 | 2015-07-01 | 京东方科技集团股份有限公司 | DC driving voltage regulation device and method, power supply device and display panel |
| KR102370379B1 (en) * | 2014-08-13 | 2022-03-07 | 삼성디스플레이 주식회사 | Organic light emitting dislay device |
| CN104809988B (en) * | 2015-05-18 | 2016-06-29 | 京东方科技集团股份有限公司 | A kind of OLED array and display floater, display device |
| CN104821152B (en) * | 2015-05-28 | 2017-09-01 | 深圳市华星光电技术有限公司 | Compensate the method and system of AMOLED voltage drops |
| CN106128359A (en) * | 2016-09-06 | 2016-11-16 | 昆山国显光电有限公司 | OLED display device and luminance compensation method thereof |
-
2017
- 2017-04-13 CN CN201710239655.8A patent/CN106816137B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106816137A (en) | 2017-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106816137B (en) | Display device and the method for increasing the display device brightness homogeneity | |
| US11864454B2 (en) | Display device and method of fabricating the same | |
| US9269302B2 (en) | Voltage compensable OLED display device | |
| US10380930B2 (en) | Heterogeneous light emitter display system | |
| US10255834B2 (en) | Parallel redundant chiplet system for controlling display pixels | |
| US9047819B2 (en) | Organic light emitting display having uniform brightness | |
| US7911426B2 (en) | Light emitting display with external driving voltage provided at a single side | |
| CN103730088B (en) | Drive equipment and the method for organic light-emitting display device | |
| CN108258148B (en) | OLED display panel, driving method thereof and display device | |
| KR20180013294A (en) | Organic light emitting device and its driving method | |
| CN107886900A (en) | Luminous display unit and its driving method | |
| CN109493798A (en) | The method of display device and its offset data | |
| US20190180693A1 (en) | Data Driver and Organic Light-Emitting Display Device Using the Same | |
| CN103996374A (en) | Device and method for achieving external dynamic compensation for display screen active area direct-current voltage drop | |
| EP2889864B1 (en) | Display device | |
| EP3163565B1 (en) | Display panel, driving method thereof and display device | |
| CN109946895A (en) | Display device | |
| US20230039449A1 (en) | Display panel | |
| KR102319202B1 (en) | Organic light emitting display device | |
| US20230237958A1 (en) | Display apparatus | |
| US20230154394A1 (en) | Display apparatus and control method therefor | |
| KR20210131852A (en) | Display panel | |
| US8113900B2 (en) | Method of making organic light emitting display device | |
| US20160189663A1 (en) | Organic light-emitting display and method of driving the same | |
| US20230207575A1 (en) | Light emitting display apparatus |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |