CN110047434B - Compensation system and compensation method of organic light-emitting device - Google Patents
Compensation system and compensation method of organic light-emitting deviceDownload PDFInfo
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- CN110047434B CN110047434BCN201910274461.0ACN201910274461ACN110047434BCN 110047434 BCN110047434 BCN 110047434BCN 201910274461 ACN201910274461 ACN 201910274461ACN 110047434 BCN110047434 BCN 110047434B
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- 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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- 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
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- 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
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- 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]
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Abstract
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of display technologies, and in particular, to a compensation system and a compensation method for an organic light emitting device.
[ background of the invention ]
As a novel display technology with a wide application prospect, the organic light emitting diode display has the advantages of high contrast, wide color gamut, high response speed, light weight, thinness and the like. However, the lifetime problem of the organic light emitting diode display has been an important problem affecting the development of the technology. Both a Thin Film Transistor (TFT) backplane and an AMOLED pixel constituting an Active Matrix Organic Light Emitting Diode (AMOLED) display panel have a problem of device lifetime degradation, which may cause a gradual decrease in display brightness or a problem of uneven brightness (Mura).
To solve the above problem, the compensation system must compensate the brightness to return to the normal state. In the prior art, the compensation technology includes an internal compensation technology and an external compensation technology, wherein the external compensation technology has the advantages of good compensation effect, high aperture ratio and the like, and becomes a research hotspot of the AMOLED compensation technology. However, the compensation system for external compensation needs to receive the lifetime attenuation parameter obtained by detection through a Timing Control (TCON) module and compensate according to the compensation data and the collocation of other elements, so that the logic resource requirement of the core chip of the TCON module is high, not only too much chip processing resource is occupied, but also the manufacturing cost of the device is increased.
[ summary of the invention ]
The invention aims to provide a data compensation system and a data compensation method of an organic light-emitting device, which are used for realizing external compensation on the aging phenomenon or the difference of resolution of a display device and simultaneously improving the working efficiency of a time sequence control core chip.
To achieve the above object, the present invention provides a compensation system of an organic light emitting device, the organic light emitting device including a plurality of pixel units, and the data compensation system including: a gate driving unit connected to the plurality of pixel units; a source driving and detecting unit connected to the plurality of pixel units; the compensation data unit is connected with the source electrode driving and detecting unit and comprises a storage element for storing compensation data; the control unit is connected with the grid driving unit and the source driving and detecting unit and is used for generating grid control signals and source control signals and processing display data of the pixel units; the source electrode driving and detecting unit is used for detecting display data of the pixel units, performing analog-to-digital conversion and compensating the pixel units according to the compensation data of the compensation data unit.
According to an embodiment of the present invention, the source driving and detecting unit includes a display and compensation module, an analog-to-digital conversion module, and a communication transmission interface, wherein the compensation data unit is connected to the display and compensation module through the communication transmission interface, the analog-to-digital conversion module performs analog-to-digital conversion according to the detected display data of the plurality of pixel units, and the display and compensation module obtains the compensation data of the compensation data unit through the analog-to-digital conversion module and the compensation data unit and compensates the plurality of pixel units.
According to another embodiment of the present invention, the source driving and detecting unit includes a display and compensation module and an analog-to-digital conversion module, wherein the compensation data unit is integrated in the source driving and detecting unit, and the display and compensation module obtains the compensation data of the compensation data unit through the analog-to-digital conversion module and the compensation data unit and compensates the plurality of pixel units.
According to another embodiment of the present invention, the gate driving unit includes a plurality of gate driving chips connected to the pixel units and a plurality of scan lines, and generates the gate driving signal according to the gate control signal of the control unit, the source driving and detecting unit includes a plurality of source driving chips connected to the pixel units, a detecting chip, a plurality of data lines, and a plurality of detecting lines, and the detecting chip and the plurality of detecting lines are used for detecting the display data of the plurality of pixel units.
According to another embodiment of the present invention, the storage element is a flash memory, and the control unit includes a timing control core chip.
According to another embodiment of the present invention, the plurality of pixel units are arranged in a matrix, and each of the pixel units includes a thin film transistor module and an organic light emitting diode device.
The present invention additionally provides a data compensation method of an organic light emitting device, the organic light emitting device including a plurality of pixel units, a gate driving unit, and a control unit, the data compensation method including: providing a source driving and detecting unit and a compensation data unit, wherein the source driving and detecting unit is connected to the plurality of pixel units and the control unit, and the compensation data unit comprises a storage element for storing compensation data; generating a gate control signal and a source control signal by the control unit, so that the gate driving unit and the source driving and detecting unit respectively generate a gate driving signal and a source driving signal; detecting display data of the pixel units by using the source electrode driving and detecting unit, and performing analog-to-digital conversion on the detected display data; and the source electrode driving and detecting unit searches the compensation data of the corresponding compensation data unit according to the detected display data of the pixel units and compensates the corresponding pixel units.
According to an embodiment of the present invention, the gate driving unit includes a plurality of gate driving chips connected to the pixel units and a plurality of scan lines, and generates the gate driving signal according to the gate control signal of the control unit, the source driving and detecting unit includes a plurality of source driving chips connected to the pixel units, a detecting chip, a plurality of data lines, and a plurality of detecting lines, and the detecting chip and the plurality of detecting lines are used for detecting the display data of the plurality of pixel units.
In the data compensation system of the organic light emitting device according to the embodiment of the present invention, the source driving and detecting unit is used to detect and perform analog-to-digital conversion on the display data of the plurality of pixel units, and the external or internal compensation data unit obtains the corresponding compensation data through the processing of the display and compensation module, so as to directly perform data compensation on the corresponding pixel units. That is, the embodiments of the present invention do not need to use a Time Control (TCON) core chip of the control unit for measuring and processing the lifetime degradation of the organic light emitting device, and can complete the measurement and processing only by the source driving and detecting unit, thereby greatly simplifying the processing task of the TCON core chip, achieving the optimization of cost and processing efficiency, and further effectively solving the disadvantage of cost increase caused by high logic resource requirement and heavy workload of the conventional TCON core chip.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a data compensation system of an organic light emitting device according to a preferred embodiment of the invention.
Fig. 2 is a block diagram illustrating a data compensation system of an organic light emitting device according to a preferred embodiment of the invention.
Fig. 3 is a flowchart illustrating a data compensation method of an organic light emitting device according to a preferred embodiment of the present invention.
Fig. 4 is a block diagram illustrating a data compensation system of an organic light emitting device according to another preferred embodiment of the present invention.
[ detailed description ] embodiments
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc. refer to directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
The terms used in the description of the present invention are only used to describe specific embodiments, and are not intended to show the concept of the present invention. Unless the context clearly dictates otherwise, expressions used in the singular form encompass expressions in the plural form. In the present specification, it is to be understood that terms such as "comprising," "having," and "containing" are intended to specify the presence of stated features, integers, steps, acts, or combinations thereof, as taught in the present specification, and are not intended to preclude the presence or addition of one or more other features, integers, steps, acts, or combinations thereof. Like reference symbols in the various drawings indicate like elements.
The embodiment of the invention relates to a data compensation system of an organic light emitting device, in particular to an external compensation driving system for an Active Matrix Organic Light Emitting Diode (AMOLED) device, which can compensate the poor display effect of the device caused by aging and the like. Fig. 1 is a schematic structural diagram of a data compensation system of an organic light emitting device according to a preferred embodiment of the invention. The organic light emitting device 1 of the embodiment of the present invention includes a plurality of pixel units 11 arranged in a matrix manner. Each of the pixel units 11 includes a thinfilm transistor module 12 and an Organic Light Emitting Diode (OLED)element 13.
Fig. 2 is a block diagram illustrating a data compensation system of an organic light emitting device according to a preferred embodiment of the invention. Please refer to fig. 2 in conjunction with fig. 1. The data compensation system of the organic light emitting device of the embodiment of the invention comprises agate driving unit 2, a source driving and detectingunit 3, acompensation data unit 4 and acontrol unit 5. Thegate driving unit 2 and the source driving and detectingunit 3 are respectively connected to the plurality of pixel units 11 (as shown in fig. 1). Specifically, thegate driving unit 2 includes a plurality of gate driving chips 200 connected to the pixel units 11 and a plurality of scanning lines 201 (as shown in fig. 1). Thecontrol unit 5 includes a Timing Control (TCON)core chip 51, connected to thegate driving unit 2 and the source driving and detectingunit 3, and configured to generate a gate control signal and a source control signal and process display data of the pixel units 11, where the display data may include a voltage of the lightemitting diode element 13, a threshold voltage of the thin film transistor module, and the like. In addition, thegate driving unit 2 generates a gate driving signal according to the gate control signal of thecontrol unit 5.
As shown in fig. 2, the source driving and detectingunit 3 includes a display andcompensation module 30, an analog-to-digital conversion module 31, and acommunication transmission interface 32. Specifically, the source driving and detectingunit 3 includes asource driving chip 300 located in the display andcompensation module 30, and a detectingchip 310 connected to the pixel unit 11 through a plurality ofdata lines 301 and a plurality of detectinglines 302, respectively (as shown in fig. 1). Thedetection lines 302 are used for detecting the display data of the pixel units 11. Specifically, in the preferred embodiment, thecommunication transmission interface 32 is a Serial Peripheral Interface (SPI) for connecting thecompensation data unit 4, wherein thecompensation data unit 4 stores astorage element 41 of compensation data, which is a flash memory (flash memory), and the compensation data is used for compensating for the display defect of the pixel unit.
Fig. 3 is a flowchart of a data compensation method of an organic light emitting device according to the embodiment of fig. 2. The data compensation method shown in fig. 3 is performed by the structure of the organic light emitting device of fig. 2, that is, by the gate driving unit, the source driving and detecting unit, the compensation data unit, and the control unit, and the related construction thereof will not be repeated herein. Please refer to fig. 3 in conjunction with fig. 1 and fig. 2. The data compensation method of the organic light-emitting device comprises the following steps:
step S10: and providing a source electrode driving and detecting unit and a compensation data unit, wherein the source electrode driving and detecting unit is connected with the pixel units and the control unit, and the compensation data unit comprises a storage element for storing compensation data.
Step S20: and generating a gate control signal and a source control signal by the control unit, so that the gate driving unit and the source driving and detecting unit respectively generate a gate driving signal and a source driving signal, and transmit the gate driving signal and the source driving signal to the plurality of pixel units.
Step S30: and detecting the display data of the pixel units by using the source electrode driving and detecting unit, and performing analog-to-digital conversion on the detected display data. Specifically, the source driving and detecting unit performs analog-to-digital conversion according to the detected display data through the analog-to-digital conversion module.
Step S40: and the source electrode driving and detecting unit searches the corresponding compensation data according to the detected display data and carries out data compensation on the corresponding pixel units. Specifically, the source driving and detecting unit generates compensation signals through the display and compensation module, and performs data compensation on the plurality of corresponding pixel units.
As described above, in the data compensation method according to the embodiment of the invention, the anode voltage of theOLED 13 is detected by using the detection line of the source driving and detecting unit, and the detected voltage is converted into a digital code by the analog-to-digital conversion module and transmitted to the display and compensation module. And the display and compensation module selects corresponding compensation data from the compensation data unit and compensates the pixel unit needing compensation so as to restore the brightness of the aged OLED device to a standard value. That is, the detection and compensation of the display data of the pixel unit need not be processed by the control unit.
Fig. 4 is a block diagram illustrating a data compensation system of an organic light emitting device according to another preferred embodiment of the present invention. As shown in fig. 4, the data compensation system of this embodiment includes agate driving unit 2, a source driving and detectingunit 3, acompensation data unit 4, and acontrol unit 5, wherein thecompensation data unit 4 includes astorage element 41 storing compensation data, which is a flash memory. The embodiment shown in fig. 4 is different from the previous embodiments in that thecompensation data unit 4 is integrated in the source driving and detectingunit 2, and other elements are the same as those of the data compensation system of the embodiment shown in fig. 2, and will not be described again. In particular, since thecompensation data unit 4 is embedded in the source driving and detectingunit 2, the occupied space can be reduced, and the method is suitable for organic light emitting devices with smaller size and low resolution. In addition, the compensation method of the data compensation system in the embodiment shown in fig. 4 is the same as the steps included in fig. 3, and will not be repeated here.
In the data compensation system of the organic light emitting device according to the embodiment of the present invention, the source driving and detecting unit is used to detect and perform analog-to-digital conversion on the display data of the plurality of pixel units, and the external or internal compensation data unit obtains the corresponding compensation data through the processing of the display and compensation module, so as to directly perform data compensation on the corresponding pixel units. That is, the embodiment of the present invention does not need to pass through the TCON core chip of the control unit for measuring and processing the lifetime degradation of the organic light emitting device, and can complete the measurement and processing only by the source driving and detecting unit, thereby greatly simplifying the processing task of the TCON core chip, achieving the optimization of cost and processing efficiency, and further effectively solving the disadvantage of cost increase caused by the high logic resource requirement and the heavy workload of the conventional TCON core chip.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (8)
1. A data compensation system for an organic light emitting device, the organic light emitting device including a plurality of pixel cells, the data compensation system comprising:
the grid driving unit is connected to the pixel units and comprises a plurality of grid driving chips connected with the pixel units and a plurality of scanning lines;
the source electrode driving and detecting unit is connected with the pixel units and comprises a plurality of source electrode driving chips connected with the pixel units, a detecting chip, a plurality of data lines, a plurality of detecting lines, a display and compensation module and an analog-to-digital conversion module, wherein the display and compensation module comprises a source electrode driving chip;
the compensation data unit is connected with the source electrode driving and detecting unit and comprises a storage element for storing compensation data;
the control unit is connected with the grid driving unit and the source electrode driving and detecting unit and used for generating grid control signals and source electrode control signals and processing display data of the pixel units, wherein the grid driving unit generates grid driving signals according to the grid control signals of the control unit;
the detection chip and the detection lines of the source electrode driving and detecting unit are used for detecting display data of the pixel units, the analog-to-digital conversion module is used for performing analog-to-digital conversion on the display data, and the source electrode driving and detecting unit searches compensation data corresponding to the storage element according to the detected display data, generates compensation signals through the display and compensation module, and performs data compensation on the corresponding pixel units.
2. The system of claim 1, wherein the source driving and detecting unit further comprises a communication transmission interface, and the compensation data unit is connected to the display and compensation module through the communication transmission interface.
3. The data compensation system of claim 1, wherein the compensation data unit is integrated into the source driving and detecting unit.
4. The data compensation system of an organic light emitting device according to claim 1, wherein the storage element is a flash memory, and the control unit includes a timing control core chip.
5. The data compensation system of claim 1, wherein the plurality of pixel units are arranged in a matrix, and each of the pixel units comprises a thin film transistor module and an organic light emitting diode element.
6. A data compensation method of an organic light emitting device, the organic light emitting device comprises a plurality of pixel units, a grid driving unit and a control unit, the grid driving unit comprises a plurality of grid driving chips connected with the pixel units and a plurality of scanning lines, and the data compensation method comprises the following steps:
providing a source electrode driving and detecting unit and a compensation data unit, wherein the source electrode driving and detecting unit is connected with the pixel units and the control unit and comprises a plurality of source electrode driving chips connected with the pixel units, a detecting chip, a plurality of data lines, a plurality of detecting lines, a display and compensation module and an analog-to-digital conversion module, the display and compensation module comprises a source electrode driving chip, and the compensation data unit comprises a storage element for storing compensation data;
generating a gate control signal and a source control signal by the control unit, so that the gate driving unit and the source driving and detecting unit respectively generate a gate driving signal and a source driving signal, wherein the gate driving unit generates the gate driving signal according to the gate control signal of the control unit;
the detection chip of the source electrode driving and detecting unit and the plurality of detection lines are used for detecting the display data of the plurality of pixel units, and the analog-to-digital conversion module is used for performing analog-to-digital conversion on the detected display data; and
the source electrode driving and detecting unit searches compensation data of the corresponding compensation data unit according to the detected display data of the pixel units and compensates the corresponding pixel units;
the source electrode driving and detecting unit searches corresponding compensation data stored in the storage element according to the detected display data, generates compensation signals through the display and compensation module and carries out data compensation on the plurality of corresponding pixel units.
7. The data compensation method of claim 6, wherein the source driving and detecting unit further comprises a communication transmission interface, wherein the compensation data unit is connected to the display and compensation module through the communication transmission interface.
8. The data compensation method of claim 6, wherein the compensation data unit is integrated into the source driving and detecting unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910274461.0ACN110047434B (en) | 2019-04-08 | 2019-04-08 | Compensation system and compensation method of organic light-emitting device |
| PCT/CN2019/111959WO2020206974A1 (en) | 2019-04-08 | 2019-10-18 | Compensation system of organic light-emitting device and compensation method therefor |
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| CN201910274461.0ACN110047434B (en) | 2019-04-08 | 2019-04-08 | Compensation system and compensation method of organic light-emitting device |
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| CN110047434B (en)* | 2019-04-08 | 2021-08-03 | 深圳市华星光电半导体显示技术有限公司 | Compensation system and compensation method of organic light-emitting device |
| CN110415644B (en)* | 2019-08-02 | 2023-06-30 | 京东方科技集团股份有限公司 | Pixel driving circuit and method thereof, and display panel |
| CN110767162B (en)* | 2019-11-08 | 2021-03-23 | 京东方科技集团股份有限公司 | Display compensation method and device, computer readable storage medium and computer equipment |
| CN110956928B (en) | 2019-12-25 | 2021-04-30 | 厦门天马微电子有限公司 | Organic light emitting display device and driving method thereof |
| CN113284467B (en)* | 2021-05-18 | 2022-09-09 | 京东方科技集团股份有限公司 | Source driver and gamma voltage compensation method, display module and display device |
| CN114038391B (en)* | 2021-06-08 | 2022-12-09 | 重庆康佳光电技术研究院有限公司 | Pixel compensation circuit system and pixel compensation method |
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| US9384698B2 (en)* | 2009-11-30 | 2016-07-05 | Ignis Innovation Inc. | System and methods for aging compensation in AMOLED displays |
| KR102040843B1 (en)* | 2011-01-04 | 2019-11-06 | 삼성디스플레이 주식회사 | Organic light emitting display and driving method thereof |
| KR101536129B1 (en)* | 2011-10-04 | 2015-07-14 | 엘지디스플레이 주식회사 | Organic light-emitting display device |
| CN105210138B (en)* | 2013-03-13 | 2017-10-27 | 伊格尼斯创新公司 | Integrated compensation data channel |
| KR101577909B1 (en)* | 2014-09-05 | 2015-12-16 | 엘지디스플레이 주식회사 | Degradation Sensing Method of Organic Light Emitting Display |
| CN104575382A (en)* | 2015-01-06 | 2015-04-29 | 昆山国显光电有限公司 | Aging compensation system and method for OLED component |
| KR102290613B1 (en)* | 2015-06-30 | 2021-08-19 | 엘지디스플레이 주식회사 | Organic Light Emitting Display And Driving Method Thereof |
| KR102419876B1 (en)* | 2015-08-21 | 2022-07-12 | 삼성디스플레이 주식회사 | Method of compensatting degradation and display device performing the same |
| CN206628250U (en)* | 2016-12-27 | 2017-11-10 | 北京集创北方科技股份有限公司 | Organic electroluminescence display device and method of manufacturing same |
| CN106531068A (en)* | 2016-12-27 | 2017-03-22 | 北京集创北方科技股份有限公司 | Organic electroluminesence display device |
| CN107657919B (en)* | 2017-10-10 | 2019-11-26 | 深圳市华星光电半导体显示技术有限公司 | AMOLED display device and its driving method |
| CN109545134B (en)* | 2018-11-30 | 2020-07-03 | 昆山国显光电有限公司 | OLED display panel driving circuit and driving method |
| CN110047434B (en)* | 2019-04-08 | 2021-08-03 | 深圳市华星光电半导体显示技术有限公司 | Compensation system and compensation method of organic light-emitting device |
- 2019
- 2019-04-08CNCN201910274461.0Apatent/CN110047434B/enactiveActive
- 2019-10-18WOPCT/CN2019/111959patent/WO2020206974A1/ennot_activeCeased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020206974A1 (en) | 2020-10-15 |
| CN110047434A (en) | 2019-07-23 |
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