CN109256098A - driving method, driving device and display device - Google Patents
driving method, driving device and display device Download PDFInfo
- Publication number
- CN109256098A CN109256098A CN201811397665.5A CN201811397665A CN109256098A CN 109256098 A CN109256098 A CN 109256098A CN 201811397665 A CN201811397665 A CN 201811397665A CN 109256098 A CN109256098 A CN 109256098A
- Authority
- CN
- China
- Prior art keywords
- backlight
- driving
- liquid crystal
- frame period
- display panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0613—The adjustment depending on the type of the information to be displayed
- G09G2320/062—Adjustment of illumination source parameters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention provides a kind of driving method, driving device and display device, belongs to field of display technology, can at least partly solve the problems, such as existing liquid crystal display device splashette.Driving method of the invention is for driving backlight, the backlight is used to provide backlight for liquid crystal mesogens display panel, the driving method includes: step S1, obtain the parameter in the frame period of the currently displayed picture of liquid crystal mesogens display panel, wherein, the duration in frame period described in the parameter characterization, the parameter are dynamic change value；Step S2 determines the corresponding brightness of the backlight according to preset rules according to the parameter in the frame period got.
Description
Technical field
The invention belongs to field of display technology, and in particular to a kind of driving method, a kind of driving device and a kind of display dress
It sets.
Background technique
Existing liquid crystal display device is when being shown, in application scenes (such as G-Sync), different frame
The calculating time that image needs is simultaneously different, and the duration in this frame period for causing each frame image to be shown is also dynamic change
's.One frame period generally includes scan phase and holding stage, completes the progressive scan of liquid crystal display panel in scan phase,
In the data voltage for keeping stage liquid crystal display panel that it is kept to be written into.The duration of scan phase is fixed in each frame period
, this be for the ease of the design of liquid crystal display panel and corresponding driving device, and keep the stage duration be being capable of basis
The duration dynamic adjustment in frame period.In the stage of holding, data voltage the depositing due to leakage current of preservation in liquid crystal display panel
It can change, this brightness for resulting in each sub-pixel of liquid crystal display panel to show can change.Due to each frame week
The duration in interim holding stage is different, and the variation degree for the brightness that sub-pixel is shown in each frame period is different, this just holds
Easily cause display picture splashette phenomenon.
Summary of the invention
The present invention at least partly solves the problems, such as the splashette of existing liquid crystal display device, provides a kind of driving method, drive
Dynamic device and display device.
According to a first aspect of the present invention, a kind of driving method is provided, for driving backlight, the backlight is used to be liquid
Brilliant liquid crystal display panel provides backlight, and the driving method includes: step S1, obtains the current institute of the liquid crystal mesogens display panel
Show the parameter in the frame period of picture, wherein the duration in frame period described in the parameter characterization, the parameter are dynamic change
Value；Step S2 determines that the correspondence of the backlight is bright according to preset rules according to the parameter in the frame period got
Degree.
Optionally, the liquid crystal mesogens display panel is normally white, and the pre-defined rule includes: the duration in corresponding frame period
Longer display picture, then the corresponding brightness of the backlight is lower.
Optionally, the liquid crystal display panel is common-black type, and the pre-defined rule includes: that the duration in corresponding frame period is longer
Display picture, then the corresponding brightness of the backlight is higher.
Optionally, the parameter includes the row periodicity for each frame period including, and the liquid crystal display panel is shown
When each row period it is isometric.
Optionally, the corresponding brightness of the determination backlight comprises determining that the duty ratio of backlight control signal,
In, the backlight control signal is square-wave signal, and the first level of the square-wave signal is lighted for controlling the backlight, should
The second electrical level of square-wave signal extinguishes for controlling the backlight.
Optionally, when the parameter includes the row periodicity that each frame period includes, the first electricity in the square-wave signal
Flat duty ratio and the row periodicity are in a linear relationship.
Optionally, further include step S3 after the step S2: the back is driven according to the brightness determined in step S2
The light of light source sending corresponding brightness.
According to a second aspect of the present invention, a kind of driving device is provided, for driving backlight, the backlight is used to be liquid
LCD panel provides backlight, and the driving device includes: acquiring unit, is currently shown for obtaining the liquid crystal display panel
Show the parameter in the frame period of picture, wherein the duration in frame period described in the parameter characterization, the parameter are dynamic change value；
Determination unit determines pair of the backlight according to preset rules for the parameter according to the frame period got
Answer brightness；Driving unit, the brightness for being determined according to the determination unit drive the light of the backlight sending corresponding brightness.
According to a third aspect of the present invention, a kind of driving device is provided, for driving backlight, the backlight is used to be liquid
LCD panel provides backlight, and the driving device includes memory and processor, the memory store instruction, the processing
Device is for running described instruction to execute driving method according to a first aspect of the present invention.
According to the fourth aspect of the invention, a kind of display device, including backlight and liquid crystal display panel, the back are provided
Light source is used to provide backlight for liquid crystal display panel, and the display device further includes for driving the driving of the backlight to fill
It sets, the driving device is the driving device according to second or third aspect of the present invention.
Detailed description of the invention
Fig. 1 is a kind of flow chart of driving method of the embodiment of the present invention.
Fig. 2 is a kind of driving device block diagram of the embodiment of the present invention.
Fig. 3 is another driving device block diagram of the embodiment of the present invention.
Appended drawing reference are as follows: 101, acquiring unit；102, determination unit；103, driving unit；401, memory；402, it handles
Device.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Present invention is further described in detail for formula.
Embodiment 1:
Referring to Fig.1, the present embodiment provides a kind of driving methods, and for driving backlight, backlight is used to be liquid crystal mesogens
Display panel provides backlight.The driving method includes the following steps.
Step S1 obtains the parameter in the frame period of the currently displayed picture of liquid crystal mesogens display panel, wherein parameter characterization
The duration in frame period, parameter are dynamic change value.
That is for liquid crystal display panel when being shown, the duration of each frame is dynamic change.Characterize the parameter of the duration
The e.g. duration in frame period, frame frequency.In a kind of situation, when one determining liquid crystal display panel of driving is shown, row week
The duration of phase be it is fixed, the row periodicity (also referred to as Vblk number) that a frame period includes can be used to characterize the frame period when
It is long.
Step S2 determines the corresponding brightness of backlight according to preset rules according to the parameter in the frame period got.
The brightness of light that i.e. backlight is issued is also dynamic adjustment, and the foundation adjusted includes the ginseng in frame period
Number.Each frame period is usually made of refreshing stage and subsequent holding stage two parts.Pixel voltage is write in the refreshing stage
Enter in the storage capacitance in each sub-pixel of feed liquor LCD panel, the size of the voltage determines the transmission of this sub-pixel
Rate.Storage capacitance within this holding stage, in the strong and weak each sub-pixel relied on for the light that liquid crystal display panel is penetrated
The voltage stored, and over time, the presence of voltage meeting due to leakage current also constantly decays, and has also resulted in penetrating
The intensity of the light of each sub-pixel can change.The liquid crystal display panel determining for one, the refreshing in each frame period
What the duration in stage was usually fixed, the length of frame cycle time has directly reacted the length for keeping phases-time.The holding stage
Length of time has also just reacted the big or small of the amount of the variation for the light intensity that each sub-pixel issues.So as to what is issued to backlight
Light is adjusted to compensate the variation for penetrating the light of liquid crystal display panel caused by due to leakage current within the holding stage, Jin Erqi
To the problem of inhibiting display picture splashette.
In a kind of situation, liquid crystal mesogens display panel is normally white, and in the stage of holding, the presence of due to leakage current be will cause
The light for crossing liquid crystal display panel can tend to increase.So in this case, above-mentioned pre-defined rule includes: the duration in corresponding frame period
Longer display picture, then the corresponding brightness of backlight is lower.The frame period of durations i.e. different for two, the duration in frame period
It is longer, then the light that accordingly backlight issues in the time where the frame period is weaker.
In another case, liquid crystal display panel is common-black type, in the stage of holding, the presence of due to leakage current will cause transmission
The light of liquid crystal display panel can tend to reduce.So in this case, above-mentioned pre-defined rule include: the duration in corresponding frame period more
Long display picture, then the corresponding brightness of backlight is higher.The frame period of durations i.e. different for two, the duration in frame period are got over
It is long, then the light that accordingly backlight issues in the time where the frame period is stronger.
The adjustment of back light source brightness can be and adjust backlight by adjusting the mode of its driving current or driving voltage
The absolute brightness for the light that source issues.Another method this be by adjusting backlight alternating light on and off mode realize.It is specific as follows:
Determine the duty ratio of backlight control signal, wherein it is square-wave signal, the square wave that backlight, which controls signal (also referred to as pwm signal),
First level of signal is lighted for controlling backlight, and the second electrical level of the square-wave signal is for controlling backlight extinguishing.It is this
Mode is more accurate to the adjustment of back light source brightness and controllable.
Optionally, when above-mentioned parameter includes the row periodicity that each frame period includes, the first level in square-wave signal
Duty ratio and row periodicity are in a linear relationship.
Be used as a simple mathematical model, it is believed that in the duration in row period and above-mentioned square-wave signal illuminating state when
Between accounting it is in a linear relationship.Certain those skilled in the art can simulate the two with non-linear relation or piecewise linear relationship
Between relationship, thus as adjustment back light source brightness specific means.
For example, the row periodicity that each frame period includes when liquid crystal display panel refreshing frequency is 60Hz is
When 2000,144Hz each frame period include 100 row periods, it is specified that a frame period include row periodicity relative to 144Hz
The case where it is every increase by 100, then correspond to first level in square-wave signal duration reduction 144Hz refreshing frequency under square-wave signal
In the first level duration 1%.
Optionally, upon step s 2 further include step S3: being issued according to the brightness driving backlight determined in step S2
The light of corresponding brightness.
I.e. after being determined that backlight should issue how bright light, driving backlight issues the light of corresponding brightness.
Embodiment 2:
Referring to Fig. 2, the present embodiment provides a kind of driving devices, and for driving backlight, backlight is used to be liquid crystal display
Panel provides backlight, and driving device includes: acquiring unit 101, for obtaining the frame of the currently displayed picture of liquid crystal display panel
The parameter in period, wherein the duration in parameter characterization frame period, parameter are dynamic change value；Determination unit 102 is obtained for basis
The parameter in the frame period got determines the corresponding brightness of backlight according to preset rules；Driving unit 103, for according to determination
The brightness driving backlight that unit determines issues the light of corresponding brightness.
Acquiring unit 101 is for example including the port communicated with such as image processing unit (GPU).Determination unit 102 is for example
Including counting circuit.Driving unit 103 is for example including spacing output circuit etc..
The working mechanism of above-mentioned each unit is referring to embodiment 1, and specific circuit form is without limitation.
Embodiment 3:
Referring to Fig. 3, the present embodiment provides a kind of driving devices, and for driving backlight, backlight is used to be liquid crystal display
Panel provides backlight, and driving device includes memory 401 and processor 402,401 store instruction of memory, and processor 402 is used for
Operating instruction with execute according to embodiments of the present invention 1 driving method.
Specifically, e.g. random access memory (RAM) or read-only memory (ROM) etc. of memory 401 being capable of store instruction
Device.Processor 402 is, for example, the device that central processing unit (CPU) etc. carries out operation and control.
Embodiment 4:
The present embodiment provides a kind of display device, including backlight and liquid crystal display panel, backlight is used to be liquid crystal
Show that panel provides backlight, display device further includes the driving device for driving backlight, and driving device is according to of the invention real
Apply the driving device of example 2 or embodiment 3.
Specifically, the display device can for mobile phone, tablet computer, television set, display, laptop, Digital Frame,
Any products or components having a display function such as navigator.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of driving method, for driving backlight, the backlight is used to provide backlight for liquid crystal mesogens display panel,
It is characterized in that, the driving method includes:
Step S1 obtains the parameter in the frame period of the currently displayed picture of liquid crystal mesogens display panel, wherein the parameter
The duration in the frame period is characterized, the parameter is dynamic change value；
Step S2 determines the correspondence of the backlight according to preset rules according to the parameter in the frame period got
Brightness.
2. driving method according to claim 1, which is characterized in that the liquid crystal mesogens display panel is normally white, institute
The longer display picture of duration that pre-defined rule includes: the corresponding frame period is stated, then the corresponding brightness of the backlight is lower.
3. driving method according to claim 1, which is characterized in that the liquid crystal display panel is common-black type, described pre-
Set pattern then includes: the longer display picture of duration in corresponding frame period, then the corresponding brightness of the backlight is higher.
4. driving method according to claim 1, which is characterized in that the parameter includes the row week for each frame period including
Issue, each row period when the liquid crystal display panel is shown are isometric.
5. driving method according to any one of claims 1-4, which is characterized in that pair of the determination backlight
Brightness is answered to comprise determining that the duty ratio of backlight control signal, wherein the backlight control signal is square-wave signal, the party
First level of wave signal is lighted for controlling the backlight, and the second electrical level of the square-wave signal is for controlling the backlight
Extinguish.
6. driving method according to claim 5, which is characterized in that when the parameter includes the row for each frame period including
When periodicity, the duty ratio of the first level and the row periodicity are in a linear relationship in the square-wave signal.
7. driving method according to claim 1, which is characterized in that after the step S2 further include step S3: root
The light of the backlight sending corresponding brightness is driven according to the brightness determined in step S2.
8. a kind of driving device, for driving backlight, the backlight is used to provide backlight, feature for liquid crystal display panel
It is, the driving device includes:
Acquiring unit, the parameter in the frame period for obtaining the currently displayed picture of the liquid crystal display panel, wherein the ginseng
Number characterizes the duration in the frame period, and the parameter is dynamic change value；
Determination unit determines the backlight according to preset rules for the parameter according to the frame period got
Corresponding brightness；
Driving unit, the brightness for being determined according to the determination unit drive the light of the backlight sending corresponding brightness.
9. a kind of driving device, for driving backlight, the backlight is used to provide backlight, feature for liquid crystal display panel
It is, the driving device includes memory and processor, and the memory store instruction, the processor is used to run described
Instruction is to execute driving method described in -7 any one according to claim 1.
10. a kind of display device, including backlight and liquid crystal display panel, the backlight for liquid crystal display panel for providing
Backlight, which is characterized in that the display device further includes the driving device for driving the backlight, and the driving device is
Driving device according to claim 8 or claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811397665.5A CN109256098B (en) | 2018-11-22 | 2018-11-22 | Driving method, driving device and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811397665.5A CN109256098B (en) | 2018-11-22 | 2018-11-22 | Driving method, driving device and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109256098A true CN109256098A (en) | 2019-01-22 |
| CN109256098B CN109256098B (en) | 2021-01-26 |
Family
ID=65042126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811397665.5A Active CN109256098B (en) | 2018-11-22 | 2018-11-22 | Driving method, driving device and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109256098B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112419976A (en) * | 2020-09-30 | 2021-02-26 | Tcl华星光电技术有限公司 | Driving method of display device and display device |
| WO2022161094A1 (en) * | 2021-01-27 | 2022-08-04 | 重庆惠科金渝光电科技有限公司 | Display device drive method, display device, and computer readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1573893A (en) * | 2003-05-29 | 2005-02-02 | Lg电子株式会社 | Apparatus and method for controlling inverter pulse width modulation frequency in LCD in portable computer |
| CN1650219A (en) * | 2002-07-19 | 2005-08-03 | 三星电子株式会社 | A liquid crystal display |
| CN1656528A (en) * | 2002-05-28 | 2005-08-17 | 皇家飞利浦电子股份有限公司 | Motion blur decrease by varying duty cycle |
| CN1842834A (en) * | 2003-08-27 | 2006-10-04 | 皇家飞利浦电子股份有限公司 | Display device |
| CN106205497A (en) * | 2015-04-29 | 2016-12-07 | 青岛海信电器股份有限公司 | A kind of method for controlling backlight thereof, device and liquid crystal indicator |
-
2018
- 2018-11-22 CN CN201811397665.5A patent/CN109256098B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1656528A (en) * | 2002-05-28 | 2005-08-17 | 皇家飞利浦电子股份有限公司 | Motion blur decrease by varying duty cycle |
| CN1650219A (en) * | 2002-07-19 | 2005-08-03 | 三星电子株式会社 | A liquid crystal display |
| CN1573893A (en) * | 2003-05-29 | 2005-02-02 | Lg电子株式会社 | Apparatus and method for controlling inverter pulse width modulation frequency in LCD in portable computer |
| CN1842834A (en) * | 2003-08-27 | 2006-10-04 | 皇家飞利浦电子股份有限公司 | Display device |
| CN106205497A (en) * | 2015-04-29 | 2016-12-07 | 青岛海信电器股份有限公司 | A kind of method for controlling backlight thereof, device and liquid crystal indicator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112419976A (en) * | 2020-09-30 | 2021-02-26 | Tcl华星光电技术有限公司 | Driving method of display device and display device |
| CN112419976B (en) * | 2020-09-30 | 2022-04-12 | Tcl华星光电技术有限公司 | Driving method of display device and display device |
| US11735091B2 (en) | 2020-09-30 | 2023-08-22 | Tcl China Star Optoelectronics Technology Co., Ltd. | Compensation for gray-scale of display device |
| WO2022161094A1 (en) * | 2021-01-27 | 2022-08-04 | 重庆惠科金渝光电科技有限公司 | Display device drive method, display device, and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109256098B (en) | 2021-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108510956B (en) | Image display brightness adjusting method and device of display panel and display device | |
| CN104143322B (en) | Display apparatus and display apparatus control method | |
| US10665181B2 (en) | Backlights with dynamic dimming ranges | |
| US7477228B2 (en) | Method and apparatus for characterizing and/or predicting display backlight response latency | |
| EP3644303B1 (en) | Display apparatus and method for driving same | |
| US9601062B2 (en) | Backlight dimming method and liquid crystal display using the same | |
| CN100428321C (en) | Method and apparatus for driving liquid crystal display | |
| US8648780B2 (en) | Motion adaptive black data insertion | |
| CN105556587B (en) | The control method of control device and control device | |
| WO2017113343A1 (en) | Method for adjusting backlight brightness and terminal | |
| CN106297699B (en) | The picture adjusting method and device of liquid crystal display panel | |
| CN104751807A (en) | Method and device for regulating backlight brightness and liquid crystal display device | |
| CN106328090B (en) | Driving method and driving system of liquid crystal display | |
| CN112927658A (en) | Driving method and driving device of display panel and display device | |
| EP3276603A1 (en) | Method and apparatus for controlling liquid crystal display | |
| US20130215094A1 (en) | Display device and related method | |
| CN109256098A (en) | driving method, driving device and display device | |
| CN115472138B (en) | Gamma voltage regulating method, driving circuit and display device | |
| CN106128375B (en) | The data processing method of transparent liquid crystal display | |
| US20170301297A1 (en) | Display driving method and apparatus and display device comprising the display driving apparatus | |
| CN100578304C (en) | Driving method of liquid crystal display and device thereof | |
| US20080170030A1 (en) | Image processing apparatus | |
| CN109637476B (en) | Display panel display method, display panel and display device | |
| US20130342433A9 (en) | Dynamic backlight control for video displays | |
| US11605332B1 (en) | Moving picture response time (MPRT) techniques for liquid crystal displays (LCDs) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No.1088 Dajing Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Applicant after: Gaochuang (Suzhou) Electronics Co.,Ltd. Applicant after: BOE TECHNOLOGY GROUP Co.,Ltd. Address before: 100015 No. 10, Jiuxianqiao Road, Beijing, Chaoyang District Applicant before: BOE TECHNOLOGY GROUP Co.,Ltd. Applicant before: Gaochuang (Suzhou) Electronics Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |