CN107358919A - A kind of OLED screen curtain grey menu water ripples suppress and removal device - Google Patents
A kind of OLED screen curtain grey menu water ripples suppress and removal device Download PDFInfo
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- CN107358919A CN107358919A CN201710757979.0A CN201710757979A CN107358919A CN 107358919 A CN107358919 A CN 107358919A CN 201710757979 A CN201710757979 A CN 201710757979A CN 107358919 A CN107358919 A CN 107358919A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract description 60
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 230000005611 electricity Effects 0.000 claims description 4
- 230000001629 suppression Effects 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 230000033228 biological regulation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 208000035795 Hypocalcemic vitamin D-dependent rickets Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 208000033584 type 1 vitamin D-dependent rickets Diseases 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Control Or Security For Electrophotography (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention provides a kind of suppression of OLED screen curtain grey menu water ripples and removal device, including common mode filtering circuit, DCDC power supply chips, first filter circuit, LDO power supply chips, second filter circuit, OLED screen and governor circuit, wherein, the input termination D/C power input of the common mode filtering circuit, the output end of the common mode filtering circuit is connected with the input of the DCDC power supply chips, the output end of the DCDC power supply chips is connected with the input of first filter circuit, the output end of first filter circuit is connected with the input of the LDO power supply chips, the output end of the LDO power supply chips is connected with the input of second filter circuit.The beneficial effects of the invention are as follows：The multichannel stabilized power source that high-precision top adjustment amplitude can be provided exports and gives OLED screen curtain point screen, realizes that OLED screen curtain grey menu water ripples suppress and removed.
Description
Technical field
The present invention relates to water ripples suppression and removal device, more particularly to a kind of OLED screen curtain grey menu water ripples to suppress
And removal device.
Background technology
OLED screen curtain point screen needs to use multichannel stabilized power source, and the OLED screen curtain of different size different size models is to each
The configuration of road power supply is also different, and this requires that providing a kind of multichannel stabilized power source of high-precision top adjustment amplitude exports to OLED screen
Curtain point screen.
Traditional DCDC power supply output schemes are shown in below figure 1.The ripple of DCDC power supply chips is mainly by switching frequency and filter
The ESR of wave circuit（Equivalent series resistance）Determine, suppression of the DCDC power supply chips to ripple is than linear power supply under normal circumstances
It is weaker, and stability requirement of the OLED screen curtain grey menu for power supply is very high, there is water in excessive may result in of power supply ripple
The even larger shake flicker of ripple.
There is the problem of power supply output ripple is larger in traditional DCDC power source designs, this is also that OLED screen curtain grey menu is easy
There is the main reason for water ripples.LDO power supplys are also a linear control system in itself, have certain suppression to the change of input
Ability, generally uprise and die down with the frequency of ripple, coordinate suitable electric capacity, ripple can be reduced.And LDO power source designs are then deposited
Input and output pressure difference can not be too big the problem of（Cause degree of amplitude modulation smaller）, otherwise loss power, which crosses conference, causes LDO power supplys
Chip is hot or even burns.Common regulation scheme then has that degree of regulation is relatively low, the less problem of the amplitude of accommodation.
The content of the invention
In order to solve the problems of the prior art, the invention provides a kind of OLED screen curtain grey menu water ripples suppress and
Removal device.
The invention provides a kind of suppression of OLED screen curtain grey menu water ripples and removal device, including common mode filtering electricity
Road, DCDC power supply chips, the first filter circuit, LDO power supply chips, the second filter circuit, OLED screen and governor circuit, wherein,
The input termination D/C power input of the common mode filtering circuit, the output end of the common mode filtering circuit and the DCDC power supplys core
The input connection of piece, the output end of the DCDC power supply chips is connected with the input of first filter circuit, and described the
The output end of one filter circuit is connected with the input of the LDO power supply chips, the output end of the LDO power supply chips with it is described
The input connection of second filter circuit, the output end of second filter circuit respectively with the governor circuit, OLED screen
Input is connected, and the output end of the governor circuit is connected with the DCDC power supply chips, LDO power supply chips respectively, the master
Control circuit first enables the DCDC power supply chips, then enables the LDO power supply chips.
As a further improvement on the present invention, the governor circuit includes voltage x current supervisory circuit, the first high precision electro
Position device, main control chip and the second high-precision potentiometer, output end and the voltage x current monitoring electricity of second filter circuit
The input connection on road, the output end of the voltage x current supervisory circuit are connected with the input of the main control chip, the master
The output end of control chip is connected with the described first high-precision potentiometer, the second high-precision potentiometer respectively, first high accuracy
The output end of potentiometer is connected with the DCDC power supply chips, output end and the LDO electricity of the second high-precision potentiometer
Source chip connects.
As a further improvement on the present invention, the main control chip respectively with the DCDC power supply chips, LDO power supply chips
Connection, the main control chip first enables the DCDC power supply chips, then enables the LDO power supply chips.
As a further improvement on the present invention, the main control chip configures DCDC power supply cores by the first high-precision potentiometer
The output voltage of piece, the main control chip configures the output voltage of LDO power supply chips by the second high-precision potentiometer, described
The output voltage that the output voltage of DCDC power supply chips is equal to the LDO power supply chips adds 3 volts.
As a further improvement on the present invention, the output voltage of the DCDC power supply chips is more than the LDO power supply chips
Output voltage.
As a further improvement on the present invention, the main control chip is TM4C123GH6PGE, and the DCDC power supply chips are
TPS54620, the LDO power supply chips are TPS7A4701, and the common mode filtering circuit is ACM9070, first filtered electrical
Road, the second filter circuit are T520V476M016A.
As a further improvement on the present invention, the main control chip is TM4C123GH6PGE, and the DCDC power supply chips are
TPS563200, the LDO power supply chips are TPS7A4701, and the common mode filtering circuit is ACM9070, first filtered electrical
Road, the second filter circuit are T520V476M016A.
As a further improvement on the present invention, the main control chip is TM4C123GH6PGE, and the DCDC power supply chips are
LT3757A, the LDO power supply chips are TPS7A3301, and the common mode filtering circuit is ACM9070, first filtered electrical
Road, the second filter circuit are T520V476M016A.
As a further improvement on the present invention, the output end of second filter circuit and the voltage x current supervisory circuit
Input between be connected with operational amplifier.
As a further improvement on the present invention, the operational amplifier is OPA192.
The beneficial effects of the invention are as follows：By such scheme, the multichannel that can provide high-precision top adjustment amplitude is stable electric
Source, which exports, gives OLED screen curtain point screen, realizes that OLED screen curtain grey menu water ripples suppress and removed.
Brief description of the drawings
Fig. 1 is the traditional DCDC power supplys output schematic diagram of the present invention.
Fig. 2 is the schematic diagram of a kind of OLED screen curtain grey menu water ripples suppression of the present invention and removal device.
Fig. 3 is the schematic diagram of the embodiment of a kind of OLED screen curtain grey menu water ripples suppression of the present invention and removal device.
Fig. 4 is the schematic diagram of the embodiment of a kind of OLED screen curtain grey menu water ripples suppression of the present invention and removal device.
Embodiment
The invention will be further described for explanation and embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 a kind of OLED screen curtain grey menu water ripples suppress and removal device, including common mode filtering circuit 2,
DCDC power supply chips 3, the first filter circuit 4, LDO power supply chips 5, the second filter circuit 6, OLED screen 7 and governor circuit, its
In, the input termination D/C power input 1 of the common mode filtering circuit 2, output end and the DCDC of the common mode filtering circuit 2
The input connection of power supply chip 3, the output end of the DCDC power supply chips 3 and the input of first filter circuit 4 connect
Connect, the output end of first filter circuit 4 is connected with the input of the LDO power supply chips 5, the LDO power supply chips 5
Output end is connected with the input of second filter circuit 6, the output end of second filter circuit 6 respectively with the master control
The input connection of circuit, OLED screen 7, the output end of the governor circuit respectively with the DCDC power supply chips 3, LDO power supplys
Chip 5 connects, and the governor circuit first enables the DCDC power supply chips 3, then enables the LDO power supply chips 5.
As shown in Fig. 2 the governor circuit includes voltage x current supervisory circuit 8, the first high-precision potentiometer 11, master control core
10 and second high-precision potentiometer 9 of piece, the output end of second filter circuit 6 are defeated with the voltage x current supervisory circuit 8
Enter end connection, the output end of the voltage x current supervisory circuit 8 is connected with the input of the main control chip 10, the master control core
The output end of piece 10 is connected with the described first high-precision potentiometer 11, the second high-precision potentiometer 9 respectively, first high accuracy
The output end of potentiometer 11 is connected with the DCDC power supply chips 3, the output end of the second high-precision potentiometer 9 with it is described
LDO power supply chips 5 connect.
As shown in Fig. 2 the main control chip is connected with the DCDC power supply chips, LDO power supply chips respectively, the master control
Chip 10 first enables the DCDC power supply chips 3, then enables the LDO power supply chips 5.
As shown in Fig. 2 the main control chip configures the output voltage of DCDC power supply chips by the first high-precision potentiometer,
The main control chip configures the output voltage of LDO power supply chips by the second high-precision potentiometer, the DCDC power supply chips
The output voltage that output voltage is equal to the LDO power supply chips adds 3 volts.
As shown in Fig. 2 the output voltage of the DCDC power supply chips is more than the output voltage of the LDO power supply chips.
Fig. 2 shows single channel two-stage adjustable high precision low ripple stabilized power source output scheme.Practical application will be used
The different power supply output scheme of multichannel, including positive supply and negative supply.
A kind of OLED screen curtain grey menu water ripples provided by the invention suppress and removal device, combine DCDC power supply cores
The advantages of 3 wider output area of piece and the optimal Ripple Suppression ability of LDO power supply chips 5.Main control chip 10 passes through high-precision current potential
Device is gone to configure two-stage power supply chip, and each road voltage swing that the output voltage of LDO power supply chips 5 is defined by the specifications of OLED screen 7 is determined
It is fixed, and the output of DCDC power supply chips 3 is then configured to the output voltage of LDO power supply chips 5 plus 3 volts, it is main after the completion of configuration
Control chip 10（MCU）DCDC power supply chips 3 can preferentially be enabled and enable LDO power supply chips 5 again, to realize two-stage linearly adjustable output
Stable power supply.
DCDC power supply chips 3 will select the higher Ripple Suppression ability of frequency strong, and LDO power supply chips 5 will select high PSRR
（PSRR）, high PSRR LDO has very strong inhibitory action to the Switching Power Supply ripple of input.
First filter circuit 4, the second filter circuit 6 will select low ESR（Equivalent series resistance）Electric capacity, such as big capacitance
High molecular polymer electric capacity and low-capacitance obtain ceramic condenser.
First high-precision potentiometer 11, the second high-precision potentiometer 9 use 1024 high-precision potentiometers, it is possible to achieve
In the range of 10V linear regulations, degree of regulation is less than 0.01 volt.
Voltage x current supervisory circuit 8 carries out voltage x current and monitored in real time, is protected when detecting abnormal start immediately of voltage x current
Protection mechanism, to protect OLED screen 7.
A kind of OLED screen curtain grey menu water ripples provided by the invention suppress and removal device, mainly solve OLED screen curtain
Grey menu（Particularly low grey menu）There is the problem of water ripples, while can be applied to solve the different rule of various different sizes
Lattice OLED screen curtain grey menu water ripples problem.
The present invention provides practical application example as the high adjustable amplitude low ripple of 8 tunnels high accuracy required for point OLED screen curtain
Stabilized power source output scheme, including：
First, as shown in figure 3, main control chip 10 selects TM4C123GH6PGE, its kernel is ARM Cortex-M4F, possesses 4 groups
SPI, 6 groups of I2C, 8 groups of UART, 105 GPIO mouths etc., the interface of the chip is very abundant, powerful, is usually used in industrial control
The fields such as system, intelligence instrument, communicator.
The DCDC power supply chips 3 are TPS54620, and the LDO power supply chips 5 are TPS7A4701, the common mode filtering
Circuit 2 is ACM9070, and first filter circuit 4, the second filter circuit 6 are T520V476M016A.
There are 4 tunnels in 8 road power supplys（VBAT、MTP、PVDD、VREF+）The DCDC power supply chips 3 that positive supply uses are
TPS54620, LDO power supply chip 5 is TPS7A4701, every Ampere currents of 1 road power supply maximum output 1, output area in 1.4V extremely
Adjustable precision is less than 0.01V between 10V, and the horizontal control of ripple is within 10mv.ACM9070 is TDK a common mode inductance, is matched somebody with somebody
The common mode disturbances of Switching Power Supply can effectively be suppressed by closing other low ESR electric capacity.
T520V476M016A is the beautiful a low ESR polymer tantalum patch capacitor of base, coordinates other ceramic condensers to DCDC
Power supply and LDO power supplys filter again, to reach optimal ripple effect（Less than 10mv）.
2nd, the main control chip 10 is TM4C123GH6PGE, and the DCDC power supply chips 3 are TPS563200, the LDO
Power supply chip 5 is TPS7A4701, and the common mode filtering circuit 2 is ACM9070, first filter circuit 4, the second filtered electrical
Road 6 is T520V476M016A.
There are 2 tunnels in 8 road power supplys（VDDI、VCI）The DCDC power supply chips 3 that positive supply uses are TPS563200, and LDO is electric
Source chip 5 is still TPS7A4701, and its circuit framework with Fig. 3 difference is TPS54620 to be substituted for TPS563200.
TPS563200 circuit structures are simpler and cost is lower, and using the power source design of the present invention, its ripple effect is also very good（It is small
In 10mv）.
3rd, as shown in figure 4, the main control chip 10 is TM4C123GH6PGE, the DCDC power supply chips 3 are
LT3757A, the LDO power supply chips 5 are TPS7A3301, and the common mode filtering circuit 2 is ACM9070, first filtered electrical
Road 4, the second filter circuit 6 are T520V476M016A.
Fortune is connected between the input of the output end of second filter circuit 6 and the voltage x current supervisory circuit 8
Amplifier 12 is calculated, operational amplifier 12 is high precision operating amplifier 12.
The operational amplifier 12 is OPA192.
Last 2 tunnel in 8 road power supplys（PVEE、VREF-）It is negative supply, the DCDC power supply chips 3 of use are LT3757A, LDO
Power supply chip 5 is still TPS7A3301, and its circuit framework is shown in Fig. 4.Every Ampere currents of 1 road power supply maximum output 1, output area-
Adjustable precision is less than 0.01V between 10V to -1.18V, and the horizontal control of ripple is within 10mv.OPA192 is a high accuracy fortune
Amplifier is calculated, for negative voltage to be inverted into positive voltage in order to monitor.The ripple effect of actual verification two-way volt power supply is same
It is very good（Less than 10mv）.
A kind of OLED screen curtain grey menu water ripples provided by the invention suppress and removal device, using 1024 high accuracy
Potentiometer carries out two-stage linearly adjustable output to DCDC power supplys and LDO power supplys, realizes output multi-channel high accuracy, top adjustment width
Spend, ripple is small, small power consumption stabilized power source, the water for solving various different size different size model OLED screen curtain grey menus
Moire problems.
A kind of OLED screen curtain grey menu water ripples provided by the invention suppress and removal device has advantages below：
1）Skill of the present invention combines 3 wider output area of DCDC power supply chips and the optimal Ripple Suppression ability of LDO power supply chips 5
Advantage, while mutually compensate for respective deficiency, the present invention program is set to provide stable multiple power supplies to different vendor not
The OLED screen 7 of same type.
2）The degree of regulation of out-put supply of the present invention is higher, ripple is lower, and Step (linear regulation step footpath) is less than 0.01V,
Ripples (ripple) is less than 10mv.
3）Using the common mode inductance and ESR of better quality（Equivalent series resistance）Smaller high molecular polymer tantalum electric capacity generation,
To obtain more preferable filter effect, make power supply output ripple smaller.
4）Possess plurality of voltages current monitoring, protection and compensation function.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. a kind of OLED screen curtain grey menu water ripples suppress and removal device, it is characterised in that：Including common mode filtering circuit,
DCDC power supply chips, the first filter circuit, LDO power supply chips, the second filter circuit, OLED screen and governor circuit, wherein, it is described
The input termination D/C power input of common mode filtering circuit, the output end of the common mode filtering circuit and the DCDC power supply chips
Input is connected, and the output end of the DCDC power supply chips is connected with the input of first filter circuit, first filter
The output end of wave circuit is connected with the input of the LDO power supply chips, the output end of the LDO power supply chips and described second
The input connection of filter circuit, the output end of second filter circuit respectively with the governor circuit, the input of OLED screen
End connection, the output end of the governor circuit are connected with the DCDC power supply chips, LDO power supply chips respectively, the master control electricity
Road first enables the DCDC power supply chips, then enables the LDO power supply chips.
2. OLED screen curtain grey menu water ripples according to claim 1 suppress and removal device, it is characterised in that：It is described
Governor circuit includes voltage x current supervisory circuit, the first high-precision potentiometer, main control chip and the second high-precision potentiometer, described
The output end of second filter circuit is connected with the input of the voltage x current supervisory circuit, the voltage x current supervisory circuit
Output end is connected with the input of the main control chip, the output end of the main control chip respectively with the described first high-precision current potential
Device, the second high-precision potentiometer connection, the output end of the first high-precision potentiometer are connected with the DCDC power supply chips, institute
The output end for stating the second high-precision potentiometer is connected with the LDO power supply chips.
3. OLED screen curtain grey menu water ripples according to claim 2 suppress and removal device, it is characterised in that：It is described
Main control chip is connected with the DCDC power supply chips, LDO power supply chips respectively, and the main control chip first enables the DCDC power supplys
Chip, then enable the LDO power supply chips.
4. OLED screen curtain grey menu water ripples according to claim 2 suppress and removal device, it is characterised in that：It is described
Main control chip configures the output voltage of DCDC power supply chips by the first high-precision potentiometer, and the main control chip is high by second
Precision potentiometer configures the output voltage of LDO power supply chips, and the output voltage of the DCDC power supply chips is equal to the LDO power supplys
The output voltage of chip adds 3 volts.
5. OLED screen curtain grey menu water ripples according to claim 2 suppress and removal device, it is characterised in that：It is described
The output voltage of DCDC power supply chips is more than the output voltage of the LDO power supply chips.
6. OLED screen curtain grey menu water ripples according to claim 2 suppress and removal device, it is characterised in that：It is described
Main control chip is TM4C123GH6PGE, and the DCDC power supply chips are TPS54620, and the LDO power supply chips are
TPS7A4701, the common mode filtering circuit are ACM9070, and first filter circuit, the second filter circuit are
T520V476M016A。
7. OLED screen curtain grey menu water ripples according to claim 2 suppress and removal device, it is characterised in that：It is described
Main control chip is TM4C123GH6PGE, and the DCDC power supply chips are TPS563200, and the LDO power supply chips are
TPS7A4701, the common mode filtering circuit are ACM9070, and first filter circuit, the second filter circuit are
T520V476M016A。
8. OLED screen curtain grey menu water ripples according to claim 2 suppress and removal device, it is characterised in that：It is described
Main control chip is TM4C123GH6PGE, and the DCDC power supply chips are LT3757A, and the LDO power supply chips are TPS7A3301,
The common mode filtering circuit is ACM9070, and first filter circuit, the second filter circuit are T520V476M016A.
9. OLED screen curtain grey menu water ripples according to claim 2 suppress and removal device, it is characterised in that：It is described
Operational amplifier is connected between the input of the output end of second filter circuit and the voltage x current supervisory circuit.
10. OLED screen curtain grey menu water ripples according to claim 9 suppress and removal device, it is characterised in that：Institute
It is OPA192 to state operational amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757979.0A CN107358919B (en) | 2017-08-29 | 2017-08-29 | OLED screen gray-scale picture water ripple suppression and removal device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710757979.0A CN107358919B (en) | 2017-08-29 | 2017-08-29 | OLED screen gray-scale picture water ripple suppression and removal device |
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| CN107358919A true CN107358919A (en) | 2017-11-17 |
| CN107358919B CN107358919B (en) | 2023-10-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067152A (en) * | 2018-07-13 | 2018-12-21 | 苏州华兴源创科技股份有限公司 | A kind of power supply circuit for the detection of OLED mould group |
| CN109862296A (en) * | 2019-01-23 | 2019-06-07 | 西安微电子技术研究所 | A kind of elimination VGA display interface water ripples circuit and its working method |
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| CN107358919B (en) | 2023-10-31 |
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