CN108766351A - Display panel and offset data transfer check method - Google Patents
Display panel and offset data transfer check method Download PDFInfo
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- CN108766351A CN108766351A CN201810824409.3A CN201810824409A CN108766351A CN 108766351 A CN108766351 A CN 108766351A CN 201810824409 A CN201810824409 A CN 201810824409A CN 108766351 A CN108766351 A CN 108766351A
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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
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
This application involves a kind of display panels and offset data transfer check method.The offset data transfer check method includes：The offset data of the display panel is divided into M group offset datas.Current offset data and corresponding first check code described in obtaining each group.The current offset data is stored in the first memory.Second check code is generated for each group of the current offset data.Judge whether first check code of current offset data described in same group mutually matches with second check code.The current offset data is re-write if they do not match then returning.In this implementation, if a certain group of the current offset data is when the error occurs, the current offset data for then only needing to re-write one group of error, re-enters without the offset data to display panel entirety, greatly improves the efficiency of transmission of offset data.
Description
Technical field
This application involves display technology fields, more particularly to a kind of display panel and offset data transfer check method.
Background technology
Currently, active matrix-driven organic light-emitting diode (Active Matrix Driving OLED, referred to as
AMOLED) since there is self-luminous simultaneously, display contrast that high, thickness is thin, visual angle is wide, reaction speed is fast, use temperature range
Extensively, it constructs and the excellent characteristics such as processing procedure is simpler is widely used.But the electric current of Organic Light Emitting Diode can be with
The threshold voltage shift of driving transistor is varied from so that AMOLED display panels generate the uneven Mura (colors of display brightness
Spot defect) phenomenon.The intrinsic brilliance of Mura phenomenons, that is, partial pixel is partially darker than the theoretical brightness that should be shown or partially bright, and then influences
The brightness uniformity and brightness constancy of AMOLED display panels.
Currently, when the Mura phenomenons to display panel compensate, generally use is primary by the offset data handled well
Property all in the RAM of the data drive circuit of write-in display panel, then store to display panel from RAM by offset data
Flash storage.And offset data often will appear check errors during being compensated to Mura phenomenons, need to write again
Enter whole offset datas.It re-writes whole offset datas to make the offset data of display panel transmission efficiency is low, take
It is long.
Invention content
Based on this, it is necessary in view of the above technical problems, provide a kind of display panel and offset data transfer check method.
A kind of offset data transfer check method, it is described aobvious for realizing the transfer check of the offset data of display panel
Show that panel includes screen body module, data drive circuit and flash storage, the data drive circuit respectively with the screen body mould
Group and flash storage electrical connection, the method includes：
Current offset data is obtained, the screen body module is divided into M subregion, and the M subregion corresponds to M group offset datas,
The current offset data is one group in the M groups offset data, and M is positive integer；
The current offset data is stored in the data drive circuit, and first is carried out to the current offset data
Secondary verification；
If the first time carried out to the current offset data verifies successfully, the institute after the first time is verified
It states current offset data and is stored in the flash storage, and second is carried out to the current offset data and is verified；
If being verified successfully to described second of the current offset data progress, next group of compensation number is further obtained
According to until the M groups offset data is all stored in the flash storage.
In one embodiment, if described second that the current offset data is carried out verify successfully, into
One step obtains next group of offset data, until the step of M groups offset data is all stored in the flash storage, packet
It includes：
It is organized in offset data from (M-1) and obtains the next group of offset data, and the next group of offset data and institute
It is adjacent to state current offset data；
The next group of offset data is stored in the data drive circuit, and the next group of offset data is carried out
It verifies for the first time；
If being verified successfully to the next group of offset data progress first time, the institute after the first time is verified
It states next group of offset data and is stored in the flash storage, and second is carried out to the next group of offset data and is verified；
If carrying out described second to the next group of offset data to verify successfully, further compensation number is organized from (M-2)
The next group of offset data is obtained according to middle, until the M groups offset data is all stored in the flash storage.
In one embodiment, the method further includes：
If the first time carried out to the current offset data verifies failure, returns to the acquisition and work as precompensation number
According to, and the current offset data is stored in the data drive circuit, and first is carried out to the current offset data
The step of secondary verification.
In one embodiment, the method further includes：
If failing to second of verification that the current offset data carries out, returns to the acquisition and work as precompensation number
According to, and the current offset data is stored in the data drive circuit, and first is carried out to the current offset data
The step of secondary verification.
In one embodiment, the data drive circuit includes second memory；
It is described that the current offset data is stored in the data drive circuit, and the current offset data is carried out
The step of verifying for the first time, including：
Obtain the current offset data and the first check code corresponding with the current offset data；
The current offset data is stored in the second memory, and is generated corresponding with the current offset data
Second check code；
Judge first check code and second check code whether successful match.
In one embodiment, the current offset data after the verification by the first time is stored in described
Flash storage, and the step of to the current offset data verify for second includes：
Work as described in after obtaining the current offset data after the first time verification and being verified with the first time
Corresponding first check code of precompensation data；
The current offset data after the first time is verified is stored in the flash storage, and generation and institute
State the corresponding third check code of the current offset data after verifying for the first time；
Judge first check code and the third check code whether successful match.
In one embodiment, the data drive circuit includes first memory, and the first memory is to deposit at random
Reservoir；
The method further includes：
The first memory is obtained from the flash storage to be examined by first time verification and described second
The M groups offset data after testing, the first memory is by the M groups offset data.
A kind of display panel, including：
Shield body module, is shown for realizing pixel, the screen body module is divided into M subregion, and the M subregion corresponds to M groups
Offset data, M are positive integer；
Data drive circuit is electrically connected with the screen body module, for storing the M groups offset data, and to being stored in
Each group of current offset data in the data drive circuit carries out first time verification, and the current offset data is the M
One group in group offset data；
Flash storage is electrically connected with the screen body module and the data drive circuit, for storing the M
Group offset data, and current offset data described in each group to being stored in the flash storage carries out second and verifies.
In one embodiment, the data drive circuit includes：
First memory is electrically connected with the screen body module, and the first memory is random access memory；And
Second memory, is electrically connected with the screen body module and the flash storage, and the second memory is
FIFO memory.
In one embodiment, further include：Flexible PCB is electrically connected with the data drive circuit.
This application involves a kind of display panels and offset data transfer check method.The offset data transfer check method
Including：The offset data of the display panel is divided into M group offset datas.The data drive circuit can store and complete
The first time verification of offset data described in each group in pairs.The flash storage can be stored and be completed to described in each group
Second of verification of offset data.In the application, to each group of the compensation in the M groups offset data that is transmitted
Data are all verified twice.If the primary verification of certain of a certain group of the current offset data is when the error occurs, only need
The current offset data for re-writing one group of error is carried out without the offset data to display panel entirety
It re-enters, greatly improves the efficiency of transmission of offset data and the accuracy rate of transmission.
Description of the drawings
Fig. 1 is the flow chart of offset data transfer check method described in the application one embodiment；
Fig. 2 is the flow diagram of offset data transfer check method described in the application one embodiment；
Fig. 3 is the schematic diagram of offset data transfer check in display panel described in the application one embodiment；
Fig. 4 is the schematic diagram of offset data transfer check in display panel described in the application one embodiment；
Fig. 5 is the structural schematic diagram for shielding body module described in the application one embodiment；
Fig. 6 is the cross-sectional view for shielding body module described in the application another embodiment；
Fig. 7 is the sectional view for shielding body module described in the application one embodiment.
Drawing reference numeral explanation：
Display panel 10
Shield body module 100
Substrate 101
Pixel unit 102
Pel array control circuit 112
Electroluminescent diode 113
Data drive circuit 200
Data capture unit 210
Verify detection unit 220
First memory 230
Second memory 240
Flash storage 300
Flexible PCB 400
Chip on film 500
Specific implementation mode
It is with reference to the accompanying drawings and embodiments, right in order to make the object, technical solution and advantage of the application be more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Referring to Fig. 1, provide a kind of offset data transfer check method, for realizing the offset data of display panel 10
Transmission and verification.
The display panel 10 may include screen body module 100 and data drive circuit 200.100 He of screen body module
The data drive circuit 200 is electrically connected.The screen body module 100 includes substrate, is set to the array picture of substrate surface
Plain unit.The data drive circuit 200 is used to transmit various data to the screen body module 100.For example, pixel can be transmitted
The control information of unit.The method includes：
S100, obtains current offset data, and the screen body module 100 divides for M subregion, and the M subregion corresponds to M groups benefit
Repay data.The current offset data is one group in the M groups offset data, and M is positive integer.
In this step, the screen body module 100 is divided into M subregion, and the display panel 10 could be formed with M groups benefit altogether
Repay data.M is positive integer, for example M can take 2, you can dividing the display panel 10 for upper and lower part.Computer can be with
The offset data of 10 lower part of offset data and the display panel on 10 top of the display panel is obtained, and to this two groups of benefit
It repays data and generates check code.Here the first check code that the correspondence current offset data generates can be that computer is generating
The check code that will simultaneously be generated when two groups of offset datas.The data drive circuit 200 works as precompensation described in can obtaining respectively
Data and first check code.The data drive circuit 200 can receive the M groups compensation number of external computer transmission
According to, and to each group of the first check code of generation in the M groups offset data.Each group of offset data corresponding described first
Check code may be different from.In this step, the offset data of the display panel 10 is divided into M groups, and to each group of institute
It states offset data and forms first check code.Each group of the offset data can be made in offset data transmit process
For current offset data.
The current offset data is stored in the data drive circuit 200 by S200, and to the current offset data
Carry out first time verification.
In this step, the data drive circuit 200 can be directed to the current offset data and generate the second check code.Institute
State the second check code can the difference current offset datas of basis generated.For example, second check code can be
The expression of the data volume size of the current offset data.Second check code can also be the number of the current offset data
According to the expression of digit.In this step, it can be verification first verification to carry out verification for the first time to the current offset data
Whether code is consistent with second check code.When first check code is consistent with second check code, then first time school
Test success.
In this step, the data drive circuit 200 can correspond to different data driving chips.The data drive circuit
200 can control the transmission of various data.Multiple RAM can also be arranged in the data drive circuit 200 itself.For example, institute
State two RAM of setting in data drive circuit 200.One Mura RAM can be set in two RAM, for storing Mura compensation
Data, RAM in addition can store other data.
S300 verifies the first time if the first time carried out to the current offset data verifies successfully
The current offset data afterwards is stored in the flash storage 300.And second of school is carried out to the current offset data
It tests.
In this step, the flash storage 300 is provided in the memory except the screen body module 100.To described
The step of current offset data verify for second, which may be used the flash storage 300 and generate, described works as precompensation number
According to third check code.First check code and the third check code are compared.It is write by the result judgement of comparison
Whether the current offset data entered in the flash storage is correct.
S400 further obtains next group if being verified successfully to described second of the current offset data progress
Offset data, until the M groups offset data is all stored in the flash storage 300.
In this step, if described second of the current offset data verifies successfully, next group is further obtained
Offset data.The data drive circuit 200 is first written into the next group of offset data, and carries out first time verification.If
The first time verifies, and successfully then further the next group of offset data is written in the flash storage 300.Until institute
It states M groups offset data and is all stored in the flash storage 300.
In the present embodiment, the offset data of the display panel 10 is divided into M group offset datas.The data-driven
Circuit 200 can obtain current offset data described in each group and complete to verify the first time of the current offset data.Institute
It states data drive circuit 200 and may determine that whether the first time verification succeeds.Into one if the first time verifies successfully
The current offset data is sent to the flash storage 300 by step.The flash storage 300 works as precompensation to described
Data carry out second and verify.If described second verifies successfully, next group of offset data is further obtained, until described
M groups offset data is all stored in the flash storage 300.In the present embodiment, to the M groups the being transmitted compensation number
Each group of the offset data in is all verified twice.When the current offset data the first time verification at
The current offset data is sent to the flash storage 300 after work(.After verifying successfully for described second, further
The next group of offset data is written in the data drive circuit 200, offset data is so alternately written into, until the M
Group offset data is all written in the flash storage 300.In the present embodiment, if a certain group it is described work as precompensation number
According to the current offset data for, then only needing to re-write when the error occurs one group of error, without to the display panel 10
The whole offset data is re-entered.In the present embodiment, when the current offset data for occurring a certain group occurs
When check errors, whole offset datas is rewritten without taking a long time, need to only re-write that group of error
The offset data greatly improves the efficiency of transmission of offset data.
In one embodiment, the step S400 is specifically included：
S410 is organized in offset data from (M-1) and is obtained the next group of offset data, and the next group of offset data
It is adjacent with the current offset data.
The next group of offset data is stored in the data drive circuit by S420, and to the next group of compensation number
According to progress first time verification.
S430 verifies the first time if being verified successfully to the next group of offset data progress first time
The next group of offset data afterwards is stored in the flash storage, and is carried out second to the next group of offset data
Verification.
S440 is verified successfully if carrying out described second to the next group of offset data, is further organized and mend from (M-2)
It repays and obtains the next group of offset data in data, until the M groups offset data is all stored in the flash storage.
It is described in detail in the present embodiment, enters the next group of compensation number after the current offset data completes verification
According to transmitting step implementation process.The step of next group of offset data is verified with to the current offset data
The step of being verified is identical.The current offset data and the next group of offset data are all in the M groups offset data
One group.
In one embodiment, the method further includes：
If the first time carried out to the current offset data verifies failure, returns to the acquisition and work as precompensation number
According to, and the current offset data is stored in the data drive circuit, and first is carried out to the current offset data
The step of secondary verification.
In the present embodiment, without carrying out the data to the flash storage 300 if first time verification failure
Transmission and second of verification.The transmission time for having saved offset data in this way improves the efficiency of transmission of offset data.
The mistake that the current offset data detects in the first time checking procedure is timely corrected, avoids being transmitted across
Waste of time in journey.
In one embodiment, the method further includes：
If failing to second of verification that the current offset data carries out, returns to the acquisition and work as precompensation number
According to, and the current offset data is stored in the data drive circuit, and first is carried out to the current offset data
The step of secondary verification.
In the present embodiment, the next group of compensation number cannot be further obtained if second of verification failure
According to.Second of verification failure, illustrates mistake occur during the transmission data into the memory blocks Flash 300.
In a certain group of data in the M groups offset data are verified at described second when the error occurs, it needs to return to the acquisition
Current offset data, and the current offset data is stored in the data drive circuit 200, and work as precompensation to described
Data carry out the step of verifying for the first time.All offset datas of the display panel 10 can be adequately detected in this way so that
After display panel 10 calls the offset data, Mura phenomenons can be avoided, realize it is comprehensive, without color spot, zero defect and
The display of high brightness.
The offset data is stored in the data drive circuit 200 referring to Fig. 2, providing in one embodiment
The specific step of the first memory 230：
Screen body module is divided into M subregion by S101, and the M subregion corresponds to M group offset datas, and M is positive integer, each
Group offset data corresponds to one group of first check code.
First group of offset data and first group of first check code are written data drive circuit, while generating first by S102
Second check code of group offset data.
S103 judges whether first group of first check code and first group of second check code are consistent.
If it is not, then returning to the step S102.
If so, implementing S104, flash storage is written into first group of offset data, while generating first group of compensation number
According to third check code.
S105 judges whether first group of first check code and first group of third check code are consistent.
If it is not, then returning to the step S102.
If then implementation steps S106 judges whether second group of offset data be correct to the offset data verification of (M-1) group,
And it is written into flash storage.
M groups offset data and the first check code of M groups are written data drive circuit, while generating M groups and mending by S107
Repay the second check code of data.
S108 judges whether the first check code of M groups and the second check code of M groups are consistent.
If it is not, then returning to the step S107.
If so, implementing S109, flash storage is written into M groups offset data and the first check code of M groups, simultaneously
Generate the third check code of M group offset datas.
S110 judges whether the first check code of M groups and M group third check codes are consistent.
If it is not, then returning to the step S107.If so, terminating the transmission of the offset data.
In the present embodiment, the display panel 10 is given in the particular flow sheet for transmitting the offset data.This implementation
In, each group of the offset data in the M groups offset data that is transmitted all is verified twice.Work as when described
When the first time verification of precompensation data and all correct second of verification, then explanation is written with described in correct one group
Current offset data.If a certain group of the current offset data is when the error occurs, only need to re-write one group of error
The current offset data.Meanwhile the first time verification and second of verification will be stored in the data-driven electricity
It road 200 and is stored in the two kinds of situations to malfunction when the flash storage 300 and distinguishes.In verification and the process of data transmission
In without being re-entered to the whole offset data of the display panel 10.In the present embodiment, when a certain group of appearance
Current offset data when there are check errors, rewrite whole offset datas without taking a long time, only need
The offset data for re-writing that group of error, greatly improves the efficiency of transmission of offset data.
Referring to Fig. 3, in one embodiment, the data drive circuit includes second memory.The data-driven
Circuit includes data capture unit and verification detection unit and second memory.
The second memory 240 can be push-up storage (FIFO).The second memory 240 is as a kind of
Novel large scale integrated circuit, memory capacity are increasing.The second memory 240 access data flexibly, conveniently, it is high
Effect can widely be answered in high-speed data acquisition, high-speed data processing, high speed data transfer and Multi-computer Processing system
With.The second memory 240 can cache continuous data flow, prevent from losing number when into machine and storage operation
According to.The second memory 240 can put together data into traveling machine and storage.The second memory 240 can carry
The transmission speed of high data.
In the present embodiment, the data drive circuit 200 is deposited by the way that the current offset data is transmitted to described second
Reservoir 240.Further, the data drive circuit 200 is to being stored in the current offset data of the second memory 240
It is verified.In the present embodiment, the method provided can complete the current offset data verification into next step
Transmission and verification.First time verification will be passed through, and successfully the current offset data is stored to the flash storage
It 300 and carries out described second and verifies.
In one embodiment, the current offset data is stored in the data drive circuit by the S200, and right
The step of current offset data verify for the first time, including：
S210 obtains the current offset data and the first check code corresponding with the current offset data.
The current offset data is stored in the second memory, and generated and the current offset data by S220
Corresponding second check code.
S230, judge first check code and second check code whether successful match.
In the present embodiment, first check code can be that computer is automatically generated when generating the M groups offset data
's.Second check code can be when the current offset data stores in the second memory 240, described
The check code generated in two memories 240.The embodiments form of first check code and second check code is identical
's.For example, first check code and second check code are all the sizes for the data volume for characterizing the current offset data.
Or first check code and second check code are all the numbers for the data bits for characterizing the current offset data.?
In one embodiment, the bit wide of first check code and second check code is 16.The data of 16 bit wides are as institute
It states the first check code and second check code enables to checking procedure simpler effectively.For example, described current when judging
When whether offset data transmission is correct, it need to only judge whether are 16 first check codes and 16 second check codes
It is consistent.
In one embodiment, the method further includes S240, if first check code and second check code
With success, then it is stored in the flash storage into the current offset data after the verification by the first time, and
The step of second of verification is carried out to the current offset data.
In one embodiment, the current offset data after the verification by the first time is stored in described
Flash storage, and the step of to the current offset data verify for second includes：
Work as described in after obtaining the current offset data after the first time verification and being verified with the first time
Corresponding first check code of precompensation data.
The current offset data after the first time is verified is stored in the flash storage, and generation and institute
State the corresponding third check code of the current offset data after verifying for the first time.
Judge first check code and the third check code whether successful match.
In the present embodiment, the third check code can be stored in the Flash storages in the current offset data
When device 300, the check code of the generation of the flash storage 300.The form of the third check code and first check code,
The form of second check code can be consistent.May be set to be first check code is a kind of coded lock, and institute
The key of first check code can be opened for correspondence by stating the second check code and the third check code.First verification
The setting of code, second check code and the third check code is primarily to disclosure satisfy that the verification current offset data
It is whether correct, it is whether wrong in data transmission procedure.When first check code and the third check code successful match
When, then prove that the current offset data is transferred to being transmitted across for the flash storage 300 from the second memory 240
There is no the damage of data in journey.In the present embodiment, if first check code and the third check code successful match, into
Enter it is described further obtain next group of offset data, until the M groups offset data is all stored in the flash storage
Step.
In one embodiment, the data drive circuit includes first memory.The first memory is to deposit at random
Reservoir.The method further includes, the first memory obtain from the flash storage by first time verification and
Described second examine after the M groups offset data, the first memory is by the M groups offset data.
In the present embodiment, the first memory 230 can be random access memory.The random access memory is Random
The abbreviation of Access Memory, RAM.The random access memory is that the internal storage of data is directly exchanged with controller.RAM
It can read and write, and speed is quickly, be deposited usually as the ephemeral data of operating system or other programs in being currently running at any time
Store up medium.The content of storage arbitrarily can be taken out or be stored on demand, and the storage that the speed accessed is unrelated with the position of storage unit
Device.This memory will lose its storage content when power is off.According to the operation principle of storage unit, random access memory be divided into for
Static RAM (Static RAM, SRAM) and dynamic RAM (Dynamic RAM, DRAM).Described first deposits
SRAM or DRAM may be used in reservoir 230.
Specifically, the first memory 230 uses RAM, any storage unit therein can be carried out reading or writing behaviour
Make.Information after the closing of screen body module 100 power supply in it will not preserve.It is needed when the screen body module 100 is switched on again
Reload, be commonly used to deposit operation system, the various softwares being currently running, output and input data, intermediate result and
Information is exchanged with external memory.
In the present embodiment, when the display panel 10 needs to carry out compensation data, the institute in the data drive circuit
It states first memory 230 and reads offset data from the flash storage 300.The data drive circuit is with described the
Offset data in one memory 230 completes the compensation data to the screen body module 100.After compensation data is described
No longer there is the display of color spot phenomenon in screen body module 100.
Referring to Fig. 4, including multiple pixel units 102 on the screen body module 100 in one embodiment.It is described
Multiple pixel units 102 are intervally arranged along first direction, and are extended line by line in a second direction.The multiple picture per a line
The offset data of plain unit 102 is one group in the M groups offset data.
In the present embodiment, the screen body module 100 includes substrate 101 and is set to the described more of 101 surface of the substrate
A pixel unit 102.In the present embodiment, the offset data of the multiple pixel unit 102 per a line is that the M groups compensate number
One group in.The offset data described in the multiple one group of the formation of pixel unit 102 per a line.In the present embodiment, using described
The multiple pixel units in the horizontal direction of display panel 10 have similar resolution ratio, according to row to the display panel 10
It distinguishes.
In one embodiment, include multiple pixel units 102 on the screen body module 100.The multiple pixel list
Member 102 is intervally arranged along first direction, and is extended line by line in a second direction.The multiple pixel unit 102 of every N rows
Offset data is one group in the M groups offset data, and wherein N≤M, M/N are positive integer, and N is not equal to 1.N in the present embodiment
It can be the positive integer in addition to 1, and to meet N≤M, M/N is positive integer.In the present embodiment, per the multiple picture of N rows
The offset data of plain unit 102 is one group in the M groups offset data, the display panel 10 can be allow to divide in this way
It is less group.And the capacity of each group of the offset data can ensure suitable range.
In one embodiment, the method for generating the M groups offset data includes：
S10 carries out subregion to the multiple pixel unit 102 being arranged on the screen body module 100, to obtain M points
Area, each subregion include at least one pixel unit 102.
S20 obtains the image information of M subregion on the screen body module 100.
S30 is handled described image information using DeMure backoff algorithms, to obtain the M groups offset data.
In the present embodiment, first, subregion is carried out to the multiple pixel unit 102 being arranged on the screen body module 100,
To obtain M subregion, each subregion includes at least one pixel unit 102.Then, M points are obtained on the screen body module 100
The image information in area.Pure gray scale image shown on the screen body module 100 can specifically be shot, and be clapped
Take the photograph image.The luma data of each pixel in the shooting image is obtained according to the brightness data of shooting image.Finally, sharp
Described image information is handled with DeMure backoff algorithms, is realized by the amendment of the luma data to each pixel
To the compensating approach of Mura defects, to obtain the M groups offset data.
Referring to Fig. 5, a kind of display panel 10 includes screen body module 100, data drive circuit 200 and flash storage
300。
The screen body module 100, shows for realizing pixel.The screen body module 100 may include being cascading
Substrate, pel array control circuit and electroluminescent diode.
The data drive circuit 200 is electrically connected with the screen body module 100, and the data drive circuit 200 includes number
According to acquiring unit 210, verification detection unit 220, first memory 230 and second memory 240.The first memory 230
For random access memory.The second memory 240 is push-up storage.The data capture unit 210 is worked as obtaining
Precompensation data and the first check code corresponding with the current offset data.The verification detection unit 220 is used for basis
The current offset data generates the second check code and judges whether first check code and second check code match
Success.
The flash storage 300 is set to the outside of the screen body module 100, with 200 electricity of the data drive circuit
Connection.The flash storage 300 can mitigate the pressure of the storage data of the second memory 240.In the Flash
It can modify to data in memory 300, data are re-write without pulling the flash storage 300.
The data that the flash storage 300 is stored in the inside after power supply is turned off can't be lost, must be first when data are written
The data dump of script is fallen, new data then could be written again, disadvantage is that the speed of write-in data is too slow.It will pass through described
The M groups offset data after verifying successfully for the first time is written from the second memory 240 in the flash storage 300,
And it completes second and verifies.By the M groups offset data according to different groupings, the write-in Flash storages a group by a group
Device 300 and whether each group of offset data for verifying write-in be correct.Packet checks and the mode of grouping transmission can be further
Whether correct detect offset data described in each group be transferred in the flash storage.
In the present embodiment, the data provided between the selection and each structure of each structure of the display panel 10 pass
Transmission method is referred to the above-mentioned offset data transfer check method, and details are not described herein.
Fig. 5 and Fig. 6 are please referred to, in one embodiment, the display panel 10 further includes：Flexible PCB 400.
In the present embodiment, the flexible PCB 400 is electrically connected with the data drive circuit 200.The data-driven
Circuit 200, which can print, to be arranged on a face of the flexible PCB 400.The display panel 10 is inflexible display
Panel.Substrate 101 in the screen body module 100 is hard material.The data drive circuit 200 and the flexible PCB
Concrete structure inside 400 can close technical staff according to this field and be configured.
Referring to Fig. 6, in one embodiment, the display panel 10 further includes flexible PCB 400 and chip on film
500。
The chip on film 500 (Chip On Flex or Chip On Film, abbreviation COF) is that one kind can be by data
Driving circuit is fixed on the crystal grain mantle packaging film in flexible circuit board.The chip on film 500 can be used soft (soft
Property) additional circuit boards make encapsulation chip carrier chip is engaged with soft (flexibility) substrate circuit.
The display panel 10 in the present embodiment is display panel flexible.The chip on film 500 and the screen body
Module 100 and the data drive circuit 200 are electrically connected.The flexible PCB 400 is electrically connected with the chip on film 500
It connects.The data drive circuit 200 is bonded and (is fixedly connected) with the flexible PCB 400 by the chip on film 500.
Referring to Fig. 7, in one embodiment, the screen body module 100 include the substrate 101 being cascading, as
Pixel array control circuit 112 and electroluminescent diode 113.
Substrate of glass, flexible substrates or silicon base may be used in the substrate 101, is not limited thereto.In a reality
It applies in example, the substrate 101 is flexible substrates, and the substrate 101 can be turned down along some boundary line, will be not as pixel
The part of display is turned down to the back side of the display panel 10.The substrate 101 can be turned down along some boundary line.
The pel array control circuit 112 is set to the surface of the substrate 101.The pel array control circuit
112 may include one or more thin film transistor (TFT)s (Thin Film Transistor, abbreviation TFT) and capacitance.
The electroluminescent diode 113 is set to 112 table far from the substrate 101 of the pel array control circuit
Face.The electroluminescent diode 113 is electrically connected with the pel array control circuit 112.The electroluminescent diode 113
Organic Light Emitting Diode (Organic Light-Emitting Diode, abbreviation OLED) or micro-led can be selected from
Electroluminescent devices such as (Micro LED).
In the present embodiment, the screen body module 100 includes the substrate 101, the pel array control circuit 112 and institute
State electroluminescent diode 113.The screen body module 100 can be that Flexible Displays module can also non-flexible display module.
In one embodiment, a kind of display device, including display panel described in any one of the above embodiments are provided.
Each technical characteristic of above example can be combined arbitrarily, to keep description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the range of this specification record.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, under the premise of not departing from the application design, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the protection domain of the application patent should be determined by the appended claims.
Claims (10)
1. a kind of offset data transfer check method, special for realizing the transfer check of the offset data of display panel (10)
Sign is that the display panel (10) includes shielding body module (100), data drive circuit (200) and flash storage (300),
The data drive circuit (200) is electrically connected with the screen body module (100) and the flash storage (300) respectively, described
Method includes：
Current offset data is obtained, the screen body module (100) is divided into M subregion, and the M subregion corresponds to M group offset datas,
The current offset data is one group in the M groups offset data, and M is positive integer；
The current offset data is stored in the data drive circuit (200), and the is carried out to the current offset data
Primary verification；
If the first time carried out to the current offset data verify successfully, will work as described in after first time verification
Precompensation data are stored in the flash storage (300), and carry out second to the current offset data and verify；
If being verified successfully to described second of the current offset data progress, next group of offset data is further obtained,
Until the M groups offset data is all stored in the flash storage (300).
2. offset data transfer check method as described in claim 1, which is characterized in that if described work as precompensation number to described
It is verified successfully according to described second of progress, then further obtains next group of offset data, until the M groups offset data is whole
The step of being stored in the flash storage (300), including：
It is organized in offset data from (M-1) and obtains the next group of offset data, and the next group of offset data is worked as with described
Precompensation data are adjacent；
The next group of offset data is stored in the data drive circuit (200), and to the next group of offset data into
Row verifies for the first time；
Verify successfully if carrying out first time to the next group of offset data, it will be under described after first time verification
One group of offset data is stored in the flash storage (300), and carries out second to the next group of offset data and verify；
If carrying out described second to the next group of offset data to verify successfully, further organized in offset data from (M-2)
The next group of offset data is obtained, until the M groups offset data is all stored in the flash storage (300).
3. offset data transfer check method as described in claim 1, which is characterized in that the method further includes：
If the first time carried out to the current offset data verifies failure, the current offset data of acquisition is returned,
And the current offset data is stored in the data drive circuit (200), and the is carried out to the current offset data
The step of primary verification.
4. offset data transfer check method as described in claim 1, which is characterized in that the method further includes：
If failing to second of verification that the current offset data carries out, the current offset data of acquisition is returned,
And the current offset data is stored in the data drive circuit (200), and the is carried out to the current offset data
The step of primary verification.
5. offset data transfer check method as described in claim 1, which is characterized in that the data drive circuit (200)
Including second memory (240)；
It is described that the current offset data is stored in the data drive circuit (200), and to the current offset data into
The step of row verifies for the first time, including：
Obtain the current offset data and the first check code corresponding with the current offset data；
The current offset data is stored in the second memory (240), and is generated corresponding with the current offset data
The second check code；
Judge first check code and second check code whether successful match.
6. offset data transfer check method as claimed in claim 5, which is characterized in that after the verification by the first time
The current offset data be stored in the flash storage (300), and second of school is carried out to the current offset data
The step of testing include：
The current benefit after obtaining the current offset data after the first time verification and being verified with the first time
Repay corresponding first check code of data；
The current offset data after the first time is verified is stored in the flash storage (300), and generation and institute
State the corresponding third check code of the current offset data after verifying for the first time；
Judge first check code and the third check code whether successful match.
7. offset data transfer check method as described in claim 1, which is characterized in that the data drive circuit (200)
Including first memory (230), the first memory (230) is random access memory；
The method further includes：
The first memory (230) obtains from the flash storage (300) by first time verification and described the
The M groups offset data after secondary check, the first memory (230) is by the M groups offset data.
8. a kind of display panel, which is characterized in that including：
Shield body module (100), is shown for realizing pixel, the screen body module (100) is divided into M subregion, the M subregion pair
It is positive integer to answer M group offset datas, M；
Data drive circuit (200) is electrically connected with the screen body module (100), for storing the M groups offset data, and it is right
Each group of current offset data being stored in the data drive circuit (200) carries out first time verification, described to work as precompensation
Data are one group in the M groups offset data；
Flash storage (300) is electrically connected with the screen body module (100) and the data drive circuit (200), is used
In the storage M groups offset data, and when precompensation number described in each group to being stored in the flash storage (300)
It is verified according to carrying out second.
9. display panel as claimed in claim 8, which is characterized in that the data drive circuit (200) includes：
First memory (230) is electrically connected with the screen body module (100), and the first memory (230) is random storage
Device；And
Second memory (240) is electrically connected with the screen body module (100) and the flash storage, and described second deposits
Reservoir (240) is FIFO memory.
10. display panel as claimed in claim 8, which is characterized in that further include：
Flexible PCB (400) is electrically connected with the data drive circuit (200).
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| CN201810824409.3A CN108766351A (en) | 2018-07-25 | 2018-07-25 | Display panel and offset data transfer check method |
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