CN108257539A - OLED display and its driving chip - Google Patents
OLED display and its driving chip Download PDFInfo
- Publication number
- CN108257539A CN108257539A CN201810055268.3A CN201810055268A CN108257539A CN 108257539 A CN108257539 A CN 108257539A CN 201810055268 A CN201810055268 A CN 201810055268A CN 108257539 A CN108257539 A CN 108257539A
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- screen body
- oled screen
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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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- 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 present invention relates to a kind of OLED display and its driving chip, wherein driving chip includes driving circuit, further includes：OLED screen body test circuit is tested for the OLED screen body to the OLED display；Switching circuit, the switching circuit are connect with the OLED screen body test circuit；The switching circuit is additionally operable to connect with the OLED screen body；And processor, it is connect respectively with the switching circuit and the OLED screen body test circuit；The processor controls the switching circuit for reception pattern switching control order and according to the pattern switching control command, to control the connection status between the OLED screen body test circuit and the OLED screen body.The driving chip of above-mentioned OLED display is advantageously implemented the narrow frame design of display device.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of OLED display and its driving chip.
Background technology
With driving core in OLED (Organic Light Emitting Diode, Organic Light-Emitting Diode) display device
The integrated level of piece (IC) is higher and higher, and chip size is also less and less.Therefore lead to signal pins (SEG Pin) and scanning pin
Spacing between (COM Pin) is also less and less.Shield body to pole narrow frame to develop also further such that signal pins and scanning are drawn
Spacing between foot becomes smaller.Traditional screen body is seasoned mainly to press mode using conductive adhesive tape vacation or passes through probe touch screen body
Lead is seasoned to realize.These methods are unfavorable for realizing product frame very narrow design.
Invention content
Based on this, it is necessary to provide a kind of OLED display and its driving chip that can realize narrow frame design.
A kind of driving chip of OLED display, including driving circuit, the driving circuit is used to show the OLED
The OLED screen body of showing device carries out display driving；The driving chip further includes：
OLED screen body test circuit, for testing the OLED screen body；
Switching circuit, the switching circuit are connect with the OLED screen body test circuit；The switching circuit be additionally operable to
The OLED screen body connection；And
Processor is connect respectively with the switching circuit and the OLED screen body test circuit；The processor is used to connect
It receives pattern switching control command and the switching circuit is controlled according to the pattern switching control command, with described in control
Connection status between OLED screen body test circuit and the OLED screen body.
The driving chip of above-mentioned OLED display, being integrated with for the driving circuit that is driven to OLED screen body
It is also integrated with OLED screen body test circuit and switching circuit simultaneously.Processor in driving chip can be according to the mould received
Formula switching control instruction controls switching circuit so as to fulfill the connection shape to OLED screen body test circuit and OLED screen body
The control of state.Therefore, when OLED screen body test circuit is connect with OLED screen body, you can OLED screen body is surveyed accordingly
Examination.By the way that OLED screen body test circuit is integrated on driving chip, without passing through conductive adhesive tape or spy again in test process
The connection modes such as needle realize the connection between OLED screen body and OLED screen body test circuit, are advantageously implemented the narrow of display device
Frame design.
The OLED screen body test circuit includes in one of the embodiments,：
Module aged test circuit is connect by the switching circuit with the OLED screen body, for the OLED screen
Body carries out module aged test；And
Shield body aged test circuit, connect by the switching circuit with the OLED screen body, for the OLED screen
Body carries out screen body aged test；
The processor controls the connection status between the OLED screen body test circuit and the OLED screen body, including choosing
Described in module aged test circuit and the OLED screen body connect and choose screen body aged test circuit and the OLED screen
Body connects.
The module aged test circuit and the screen body aged test circuit include letter in one of the embodiments,
Number output terminal and scanning output end；The switching circuit includes signal end switching circuit and scanning end switching circuit；The module
The signal output end of aged test circuit and the screen body aged test circuit by the signal end switching circuit with it is described
The signal pins connection of each pixel on OLED screen body；The module aged test circuit and the screen body aged test circuit
Scanning output end is connect by the scanning end switching circuit with the scanning pin of each pixel on the OLED screen body.
The signal end switching circuit is identical with the structure of the scanning end switching circuit in one of the embodiments,.
The signal end switching circuit includes logic control element and switch unit in one of the embodiments,；It is described
The input terminal of logic control element is connected to the processor；The output terminal of the logic control element and each switch unit
Connection；The quantity of the switch unit is identical with the quantity of the signal pins on the OLED screen body and connects one to one；Institute
There is switch unit also to be connect with the signal output end；The logic control element is for right under the control of the processor
Each switch unit is controlled.
The logic control element includes the first NOT gate, the second NOT gate, third NOT gate, the in one of the embodiments,
One with door and second and door；First NOT gate is set to the first input end of described first and door；The second NOT gate setting
In described first and the second input terminal of door；The third NOT gate is set to the first input end of described second and door；Described
The second instruction output end with the processor after the input terminal of one NOT gate is also connect with described second with the second input terminal of door
Connection；The input terminal of second NOT gate instructs after also being connect with the input terminal of the third NOT gate with the first of the processor
Output terminal connects；Described first connect with the output terminal of door and described second with the output terminal of door with each switch unit.
The switch unit includes the first three-terminal voltage-stabilizing pipe and the second three-terminal voltage-stabilizing pipe in one of the embodiments,；Institute
The anode for stating the first three-terminal voltage-stabilizing pipe is connect with the signal output end；The cathode and respective pixel of the first three-terminal voltage-stabilizing pipe
Signal pins connection；The control terminal of the first three-terminal voltage-stabilizing pipe is connect with described second with the output terminal of door；Described second
The anode of three-terminal voltage-stabilizing pipe is connected with the signal pins of corresponding pixel；The cathode of the second three-terminal voltage-stabilizing pipe and the signal
Output terminal connects；The control terminal of the second three-terminal voltage-stabilizing pipe is connect with first with the output terminal of door.
The processor includes main control unit and register in one of the embodiments,；The register is used to deposit
Storage control instruction corresponding with the pattern switching control command；The main control unit is used to be controlled according to the pattern switching
Order exports to the switching circuit to carry out the switching circuit after obtaining corresponding control instruction from the register
Control.
A kind of OLED display including OLED screen body, further includes the OLED display dresses as described in aforementioned any embodiment
The driving chip put.
The driving chip is arranged on the OLED screen body in one of the embodiments,.
Description of the drawings
Fig. 1 is the functional block diagram of the driving chip of the OLED display in an embodiment；
Fig. 2 is the structure diagram of the signal end switching circuit in an embodiment；
Fig. 3 is the circuit diagram of the signal end switching circuit in an embodiment；
Fig. 4 is the structure diagram of the processor in an embodiment.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The driving chip of OLED display in one embodiment can be realized to the OLED screen body in OLED display
Driving, and complete to test the correlated performance of OLED screen body.OLED display can be PMOLED, the screen body used for
PMOLED screen bodies.Fig. 1 is the principle frame of the driving chip (hereinafter referred to as driving chip) of the OLED display in an embodiment
Figure.The driving chip includes driving circuit 110, OLED screen body test circuit 120, switching circuit 130 and processor 140.Wherein
Processor 140 is electrically connected respectively with driving circuit 110, OLED screen body test circuit 120 and switching circuit 130, with to above-mentioned
The work of circuit is controlled.Switching circuit 130 is additionally operable to connect with OLED screen body 10.
Driving circuit 110 is for being driven OLED screen body 10 according to the control of processor 140, so that OLED screen
Corresponding image information is presented to user in body 10.Driving circuit commonly used in the art may be used to realize in driving circuit 110.
OLED screen body test circuit 120 is used to test OLED screen body 10.It is old that OLED screen body test circuit 120 can include module
Practice the test circuits such as test circuit and/or screen body aged test circuit, tested with the performance to OLED screen body 10.OLED screen
Body test circuit 120 is connect by switching circuit 130 with OLED screen body 10.Processor 140 can receive the pattern that user sends out
Switching control order, so as to be controlled according to the pattern switching control command switching circuit 130, to realize to OLED screen body
The control of test circuit 120 and the connection status of OLED screen body 10.
The driving chip of above-mentioned OLED display is being integrated with the driving circuit for being driven to OLED screen body 10
OLED screen body test circuit 120 and switching circuit 130 are also integrated with while 110.Processor 140 in driving chip can be with
Switching circuit 130 is controlled so as to fulfill to OLED screen body test circuit according to the pattern switching control instruction received
120 with the control of the connection status of OLED screen body 10.Therefore, when OLED screen body test circuit 120 is connect with OLED screen body 10,
OLED screen body 10 can be tested accordingly.By the way that OLED screen body test circuit 120 is integrated on driving chip, test
In the process without realizing OLED screen body 10 and OLED screen body test circuit by connection modes such as conductive adhesive tape or probes again
Between connection, be advantageously implemented the narrow frame design of display device.
In one embodiment, OLED screen body test circuit 120 includes module aged test circuit 122 and screen body aged test
Circuit 124, as shown in Figure 1.Wherein, module aged test circuit 122 and screen body aged test circuit 124 are respectively by switching electricity
Road 130 is connect with OLED screen body 10.Processor 140 controls the connection between OLED screen body test circuit 120 and OLED screen body 10
State, including module aged test circuit 122 is chosen to connect and choose screen body aged test circuit 124 with OLED screen body 10
It is connect with OLED screen body 10.The test process of usual module aged test circuit 122 is in the test of screen body aged test circuit 124
It carries out later.The test method of two test circuits and emphasis difference.Specifically, screen body aged test circuit 124 mainly makes
With the leakage current of high-voltage AC signal detection OLED screen body 10, voltage is usually in more than 30V.122 phase of module aged test circuit
For shielding the seasoned process of body aged test circuit 124, voltage is relatively low, probably in 10V~13V, to be examined under specific picture
Survey the product defects of OLED screen body 10.
In one embodiment, module aged test circuit 122 and screen body aged test circuit 124 include signal output end
And scanning output end.In the present embodiment, each pixel on OLED screen body 10 can be equivalent to an organic diode, SEG
(segment) organic diode anode is represented, COM (common) represents organic diode cathode.Switching circuit 130 includes signal
End switch circuit and scanning end switching circuit.Wherein, the letter of module aged test circuit 122 and screen body aged test circuit 124
Number output terminal is connect by signal end switching circuit with the signal pins (SEG Pin) of each pixel on OLED screen body 10.Mould
The scanning output end of group aged test circuit 122 and screen body aged test circuit 124 passes through scanning end switching circuit and OLED
Shield scanning pin (COM Pin) connection of each pixel on body 10.Processor 140 can be controlled according to the pattern switching received
Order controls, and then realization pair module aged test circuit 122, screen body aged test circuit 124 and switching circuit 130
The control of the working condition of driving chip.In the present embodiment, pattern switching control command can be normal driving order, module
Aged test order or screen body aged test order.When the pattern switching control command is normal driving order, processor
140 control module aged test circuits 122 and screen body aged test circuit 124 do not work, and switching circuit 130 is controlled to disconnect mould
The connection of group aged test circuit 122 and screen body aged test circuit 124 and OLED screen body 10.When pattern switching control command
During for module aged test order, then module aged test circuit 122 is controlled to work, control flow body aged test circuit 124 not
Work, and switching circuit 130 is controlled, and then realize the connection of module aged test circuit 122 and OLED screen body 10, with
Module aged test circuit 122 is allowd to carry out module to OLED screen body 10 seasoned.When pattern switching control command is screen body
During seasoned order, control flow body aged test circuit 124 works, module aged test circuit 122 is controlled not work, and to switch
Circuit 130 is controlled, and then realizes the connection between screen body aged test circuit 124 and OLED screen body 10, so that screen body
Aged test circuit 124 can carry out OLED screen body screen body aged test.
OLED screen body test circuit 120 in above-mentioned driving chip includes module aged test circuit 122 and screen body is seasoned
Test circuit 124 so as to reduce the seasoned flow of module factory, reduces the seasoned cost of module.It can using above-mentioned driving chip
It can share identical peripheral circuit to ensure to shield during body aged test process and module aged test and realize, be conducive to
Reduce testing cost.Above-mentioned driving chip can directly bonding on OLED screen body 10, so as to be advantageously implemented display device
Narrow frame.
In one embodiment, signal end switching circuit and scanning end switching circuit have identical structure.Therefore, this implementation
Only its circuit theory is illustrated by taking signal end switching circuit as an example in example.Fig. 2 is the signal end switch electricity in an embodiment
The structure diagram on road.The signal end switching circuit includes logic control element 210 and switch unit 220.Wherein, switch unit
220 quantity is identical with the quantity of the signal pins SEG Pin on OLED screen body 10 and connects one to one.All switch units
220 also connect with the signal output end in OLED screen body aged test circuit 120.The input terminal of logic control element 210 and place
Device connection (not shown) is managed, the output terminal of logic control element 210 is connect respectively with each switch unit 220, so as to respectively opening
Unit 220 is closed to be controlled.
Fig. 3 is the circuit diagram of the switching circuit in an embodiment.Logic control element in the switching circuit includes
First NOT gate 302, the second NOT gate 304, third NOT gate 306, first and door 308 and second and door 310.Wherein, the first NOT gate 302
It is arranged on the first input end of first and door 308.Second NOT gate 304 is arranged on the second input terminal of first and door 308.Third is non-
Door 306 is then arranged on the first input end of second and door 310.The input terminal of first NOT gate 302 is defeated with the second of door 310 with second
It is connect after entering end connection with the second instruction output end Select2 of processor.The input terminal of second NOT gate 304 and third NOT gate
It is connect after 306 input terminal connection with the first instruction output end Select1 of processor.Therefore, logic control element can be
Each switch unit is controlled under the control of two control instructions of processor output.
Each switch unit includes the first three-terminal voltage-stabilizing pipe D1 and the second three-terminal voltage-stabilizing pipe D2.Wherein, the one or three end is steady
The anode of pressure pipe D1 is connect with signal output end.The cathode of first three-terminal voltage-stabilizing pipe D1 and the signal pins SEG of respective pixel
Pin connections.The control terminal of first three-terminal voltage-stabilizing pipe D1 is connect with second with the output terminal of door 310.Second three-terminal voltage-stabilizing pipe D2's
The signal pins SEG Pin connections of anode and corresponding pixel.The cathode of second three-terminal voltage-stabilizing pipe D2 is connect with signal output end.
The control terminal of second three-terminal voltage-stabilizing pipe D2 is connect with first with the output terminal of door 308.
The control to each switch unit can be realized by the configuration of the control instruction exported to processor.In the present embodiment
In, when the first instruction output end Select1 exports low level and the second instruction output end Select2 output low levels, first
Three-terminal voltage-stabilizing pipe D1 end and the second three-terminal voltage-stabilizing pipe D2 be connected so that the signal of signal output end can not normally export to
Connection between each signal pins SEG Pin namely signal output end and each signal pins SEG Pin disconnects.First instruction is defeated
When outlet Select1 exports low level and the second instruction output end Select2 output high level, the first three-terminal voltage-stabilizing pipe D1 conductings
And the second three-terminal voltage-stabilizing pipe D2 ends, so that the signal of signal output end is normally exported to each signal pins SEG Pin,
It is normally connected between signal output end and each signal pins SEG Pin, so as to utilize OLED screen body test circuit pair
OLED screen body is tested.For example, when screen body aged test circuit tests OLED screen body 10, screen body aged test electricity
Road can be with all SEG Pin and COM Pin on short circuit OLED screen body, and then the leakage current of OLED screen body is tested.When
When module aged test circuit tests OLED screen body, module aged test circuit can pass through signal output end the output phase
The signal answered is to be individually scanned each pixel.SEG Pin and the COM Pin for needing the pixel lighted are respectively high and low
Level, the SEG Pin and the COM Pin that do not need to the pixel lighted is respectively low, high level.
In one embodiment, processor includes main control unit 410 and register 420, as shown in Figure 4.Wherein, register
420 for storage control instruction corresponding with pattern switching control command.Therefore main control unit 410 is according to the pattern received
Switching control life can be got from register 420 with after the corresponding control instruction of pattern switching control command by the
One instruction output end Select1 and the second instruction output end Select2 are exported to each switch unit, to be carried out to each switch unit
Control.
One embodiment of the invention also provides a kind of OLED display, including OLED screen body and aforementioned any embodiment
Described in driving chip.By using above-mentioned driving chip, the narrow frame design of OLED display can be realized.It is real one
It applies in example, above-mentioned driving chip is arranged on OLED screen body, so as to be more advantageous to realizing the narrow frame design of OLED display.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description 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 those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of driving chip of OLED display, including driving circuit, the driving circuit is used to show the OLED
The OLED screen body of device carries out display driving；It is characterized in that, the driving chip further includes：
OLED screen body test circuit, for testing the OLED screen body；
Switching circuit, the switching circuit are connect with the OLED screen body test circuit；The switching circuit be additionally operable to it is described
OLED screen body connects；And
Processor is connect respectively with the switching circuit and the OLED screen body test circuit；The processor is used to receive mould
Formula switching control order simultaneously controls the switching circuit according to the pattern switching control command, to control the OLED
Shield the connection status between body test circuit and the OLED screen body.
2. driving chip according to claim 1, which is characterized in that the OLED screen body test circuit includes：
Module aged test circuit is connect by the switching circuit with the OLED screen body, for the OLED screen body into
Row module aged test；And
Shield body aged test circuit, connect by the switching circuit with the OLED screen body, for the OLED screen body into
Row screen body aged test；
The processor controls the connection status between the OLED screen body test circuit and the OLED screen body, including choosing
State module aged test circuit connect and chooses screen body aged test circuit to connect with the OLED screen body with the OLED screen body
It connects.
3. driving chip according to claim 2, which is characterized in that the module aged test circuit and the screen body are old
Practice test circuit and include signal output end and scanning output end；The switching circuit includes signal end switching circuit and scanning end
Switching circuit；The signal output end of the module aged test circuit and the screen body aged test circuit passes through the signal end
Switching circuit is connect with the signal pins of each pixel on the OLED screen body；The module aged test circuit and the screen body
The scanning that the scanning output end of aged test circuit passes through each pixel on the scanning end switching circuit and the OLED screen body
Pin connects.
4. driving chip according to claim 3, which is characterized in that the signal end switching circuit and the scanning end are opened
The structure on powered-down road is identical.
5. driving chip according to claim 4, which is characterized in that the signal end switching circuit includes logic control list
Member and switch unit；The input terminal of the logic control element is connected to the processor；The output of the logic control element
End is connect with each switch unit；The quantity of the switch unit is identical with the quantity of the signal pins on the OLED screen body
And it connects one to one；All switch units are also connect with the signal output end；The logic control element is used in institute
It states and each switch unit is controlled under the control of processor.
6. driving chip according to claim 5, which is characterized in that the logic control element includes the first NOT gate, the
Two NOT gates, third NOT gate, first with door and second and door；First NOT gate is set to described first the first input with door
End；Second NOT gate is set to the second input terminal of described first and door；The third NOT gate is set to described second and door
First input end；The input terminal of first NOT gate also connect with described second with the second input terminal of door after with the processing
The second instruction output end connection of device；The input terminal of second NOT gate also connect with the input terminal of the third NOT gate after with institute
State the first instruction output end connection of processor；Described first with the output terminal of door and described second with the output terminal of door with respectively
Switch unit connects.
7. driving chip according to claim 6, which is characterized in that the switch unit include the first three-terminal voltage-stabilizing pipe and
Second three-terminal voltage-stabilizing pipe；The anode of the first three-terminal voltage-stabilizing pipe is connect with the signal output end；First three-terminal voltage-stabilizing
The cathode of pipe and the signal pins of respective pixel connect；The control terminal of the first three-terminal voltage-stabilizing pipe is defeated with door with described second
Outlet connects；The anode of the second three-terminal voltage-stabilizing pipe is connected with the signal pins of corresponding pixel；Second three-terminal voltage-stabilizing
The cathode of pipe is connect with the signal output end；The control terminal of the second three-terminal voltage-stabilizing pipe and the output terminal of first and door connect
It connects.
8. driving chip according to claim 1, which is characterized in that the processor includes main control unit and deposit
Device；The register is for storage control instruction corresponding with the pattern switching control command；The main control unit is used for
It is exported after corresponding control instruction is obtained from the register according to the pattern switching control command to the switching circuit
To control the switching circuit.
9. a kind of OLED display, including OLED screen body, which is characterized in that further include such as claim 1~8 any one institute
The driving chip for the OLED display stated.
10. OLED display according to claim 9, which is characterized in that the driving chip is arranged on the OLED
Shield on body.
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| CN201810055268.3A CN108257539B (en) | 2018-01-19 | 2018-01-19 | OLED display device and driving chip thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545135A (en) * | 2018-12-06 | 2019-03-29 | 固安翌光科技有限公司 | A kind of driving method and device of OLED lighting screen body |
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| CN109545135A (en) * | 2018-12-06 | 2019-03-29 | 固安翌光科技有限公司 | A kind of driving method and device of OLED lighting screen body |
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