CN111968594B - Display driving method, display driving system and display device - Google Patents
Display driving method, display driving system and display device Download PDFInfo
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- CN111968594B CN111968594B CN202010934294.0A CN202010934294A CN111968594B CN 111968594 B CN111968594 B CN 111968594B CN 202010934294 A CN202010934294 A CN 202010934294A CN 111968594 B CN111968594 B CN 111968594B
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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
- G09G3/34—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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
Abstract
The invention provides a display driving method, a display driving system and a display device, belongs to the technical field of display, and can at least partially solve the problem that the temperature of a driving module is too high due to high display resolution or refresh rate of the existing display device. A display driving method of the present invention is a display driving method for driving a display of a display panel, the display driving method including: obtaining a first Gamma voltage according to a first relation, wherein the first relation is the corresponding relation between the voltage and the transmittance of the display panel; obtaining a second Gamma voltage according to the first relation and the conversion standard, wherein the second Gamma voltage is smaller than the first Gamma voltage for the same gray scale; judging whether the current display frequency of the display panel is greater than a preset threshold value or not; and if the current display frequency of the display panel is greater than the preset threshold value, enabling a driving module of the display panel to output a second Gamma voltage to realize display.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display driving method, a display driving system and a display device.
Background
With the continuous development of display technology, the display resolution and the refresh rate of the existing display device are continuously improved, so that the display effect of the display device is greatly improved.
However, in the prior art, when the high display resolution and refresh rate of the display device, such as the liquid crystal display device, is turned on during the display process, especially when the displayed frame is a heavy-load frame, the temperature of the driving module (such as the driving IC) of the display device itself will rise due to the high-load operation. This may cause the driving module to be damaged due to an excessively high temperature, especially when the display device is in a high temperature environment, thereby failing to ensure the yield of the display device.
Disclosure of Invention
The invention at least partially solves the problem of overhigh temperature of a driving module caused by high display resolution or refresh rate of the existing display device, and provides a display driving method for preventing the overhigh temperature of the driving module of the display device under the condition of high display resolution or refresh rate.
The technical scheme adopted for solving the technical problem of the invention is a display driving method for driving the display of a display panel, and the display driving method comprises the following steps: obtaining a first Gamma voltage according to a first relation, wherein the first relation is the corresponding relation between the voltage and the transmittance of the display panel; obtaining a second Gamma voltage according to the first relation and the conversion standard, wherein the second Gamma voltage is smaller than the first Gamma voltage for the same gray scale; judging whether the current display frequency of the display panel is greater than a preset threshold value or not; and if the current display frequency of the display panel is greater than a preset threshold value, enabling a driving module of the display panel to output a second Gamma voltage to realize display.
Further preferably, after the determining whether the current display frequency of the display panel is greater than a preset threshold, the method further includes: and if the current display frequency of the display panel is less than or equal to a preset threshold value, enabling a driving module of the display panel to output a first Gamma voltage so as to realize display.
Further preferably, before the determining whether the current display frequency of the display panel is greater than a preset threshold, the method further includes: and obtaining the preset threshold according to the display frequency and the temperature of a driving module of the display panel.
Further preferably, the outputting of the second Gamma voltage by the driving module of the display panel to realize the display includes: the power consumption of the output end of the driving module is reduced by reducing the analog voltage of the input end of the driving module.
Further preferably, the obtaining a second Gamma voltage according to the first relation and the conversion criterion includes: and obtaining the conversion standard according to a preset threshold value of the display panel and a preset power consumption picture displayed by the display panel.
Further preferably, the determining whether the current display frequency of the display panel is greater than a preset threshold includes: and acquiring the current display frequency of the display panel.
The technical solution adopted to solve the technical problem of the present invention is a display driving system for driving display of a display panel, the display driving system comprising: the display device comprises a first processing module, a second processing module and a control module, wherein the first processing module is used for obtaining a first Gamma voltage according to a first relation, and the first relation is a corresponding relation between the voltage and the transmittance of the display panel; the second processing module is used for obtaining a second Gamma voltage according to the first relation and the conversion standard, wherein the second Gamma voltage is smaller than the first Gamma voltage for the same gray scale; the central control panel is used for judging whether the current display frequency of the display panel is greater than a preset threshold value or not; and the first output module is used for enabling the driving module of the display panel to output a second Gamma voltage to realize display if the current display frequency of the display panel is greater than a preset threshold value.
Further preferably, the display driving system further includes: and the second output module is used for enabling the driving module of the display panel to output a first Gamma voltage to realize display if the current display frequency of the display panel is less than or equal to a preset threshold value.
Further preferably, the first output module is any one of a programmable power management circuit, a programmable gamma buffer circuit chip, a gamma grouping string, and a built-in programmable gamma circuit driver; the second output module is any one of a programmable power management circuit, a programmable gamma buffer circuit chip, a gamma split-voltage power pack string and a built-in programmable gamma circuit driver.
The technical scheme adopted for solving the technical problem of the invention is a display device, which comprises: display panel and above-mentioned display drive system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flowchart illustrating a display driving method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a display driving method according to an embodiment of the invention;
fig. 3 is a block diagram schematically illustrating a display driving system according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale. Moreover, certain well-known elements may not be shown in the figures.
In the following description, numerous specific details of the invention, such as structure, materials, dimensions, processing techniques and techniques of components, are set forth in order to provide a more thorough understanding of the invention. However, as will be understood by those skilled in the art, the present invention may be practiced without these specific details.
Example 1:
as shown in fig. 1 to 3, the present embodiment provides a display driving method for driving a display of a display panel, the display driving method including:
s11, obtaining a first Gamma voltage according to a first relation, where the first relation is a corresponding relation between a voltage and a transmittance of the display panel.
The first relation is a corresponding relation between the applied voltage and the transmittance of the display panel adopting the display driving method, namely a VT curve. According to the VT curve, each Gamma binding point voltage of the display panel in normal display can be determined, namely, the first Gamma voltage is determined.
Specifically, after the first Gamma voltage is obtained, gray scales acc (accurate Color capture) adjustment may be performed according to each Gamma binding voltage to obtain a luminance voltage corresponding to each gray scale.
And S12, obtaining a second Gamma voltage according to the first relation and the conversion standard, wherein the second Gamma voltage is smaller than the first Gamma voltage for the same gray scale.
Wherein, according to the conversion standard, the second Gamma voltage is calculated by the first Gamma voltage. It should be noted that the conversion standard can be appropriately adjusted for each of the different types of display panels. The conversion standard is mainly used for properly reducing each voltage value in the first Gamma voltage according to the actual situation, and the obtained second Gamma voltage forms a picture which possibly has brightness loss, but the brightness loss is within a certain receiving range and does not influence the display of the picture.
Specifically, after the second Gamma voltage is obtained, gray levels ACC may be adjusted according to each Gamma binding voltage to obtain a luminance voltage corresponding to each gray level.
And S13, judging whether the current display frequency of the display panel is greater than a preset threshold value.
First, a current display frequency of a display panel is obtained, and specifically, a central control panel (TCON) in a display device corresponding to the display panel analyzes the display frequency of a current display picture according to a front end strobe signal (DE signal). Secondly, whether the current display frequency of the display panel is larger than a preset threshold value is judged. The preset threshold may be expressed as: when the driving module outputs the first Gamma voltage, the driving module (e.g., the driving IC) of the display panel displays the display frequency of the display panel at an achievable maximum temperature, wherein the achievable maximum temperature represents a maximum temperature of the driving module that does not damage the driving module or affect the display.
And S14, if the current display frequency of the display panel is greater than the preset threshold, enabling the driving module of the display panel to output a second Gamma voltage to realize display.
When the current display frequency of the display panel is greater than the preset threshold, it means that if the driving module outputs the first Gamma voltage, the temperature of the driving module of the display panel exceeds the maximum temperature that can be reached by the driving module, that is, the temperature of the driving module may have an adverse effect on the driving module itself and the display. Therefore, the second Gamma voltage is selected to be output by the driving module of the display panel to realize the display, so as to ensure that the temperature of the driving module is not too high.
In the display driving method of the present embodiment, the selective driving is performed by establishing the first Gamma voltage and the second Gamma voltage. When the temperature of the driving module (such as the driving IC) is too high, such as under the condition of displaying high refresh rate and heavy-load picture, the second Gamma voltage is adopted to carry out picture display driving. Because each gray scale voltage value corresponding to the second Gamma voltage is lower than each gray scale voltage value corresponding to the first Gamma voltage, the driving voltage and the current can be effectively reduced, and the temperature of the driving module can not be too high, especially the temperature of an integrated power management circuit (PMIC), a source driving unit (COF IC) and the like.
In addition, the display device manufactured by adopting the display driving method can be free of heat dissipation glue or heat dissipation paste aiming at the driving module, so that the cost of the display device is effectively lowered.
It should be noted that the display driving method of the present embodiment is applicable to various types of liquid crystal display panels, and therefore, the display driving method of the present embodiment is widely applied.
Example 2:
as shown in fig. 1 to 3, the present embodiment provides a display driving method for driving a display of a display panel, the display driving method including:
s21, obtaining a first Gamma voltage according to a first relation, where the first relation is a corresponding relation between a voltage and a transmittance of the display panel.
The first relation is a corresponding relation between the applied voltage and the transmittance of the display panel adopting the display driving method, namely a VT curve. According to the VT curve, each Gamma binding point voltage of the display panel in normal display can be determined, namely, the first Gamma voltage is determined.
Specifically, after the first Gamma voltage is obtained, gray levels ACC may be adjusted according to each Gamma binding voltage to obtain a luminance voltage corresponding to each gray level.
And S22, obtaining a second Gamma voltage according to the first relation and the conversion standard, wherein the second Gamma voltage is smaller than the first Gamma voltage for the same gray scale.
Wherein, according to the conversion standard, the second Gamma voltage is calculated by the first Gamma voltage. It should be noted that the conversion standard can be appropriately adjusted for each of the different types of display panels. The conversion standard is mainly used for properly reducing each voltage value in the first Gamma voltage according to the actual situation, and the obtained second Gamma voltage forms a picture which possibly has brightness loss, and the brightness loss is within a certain receiving range and does not influence the display of the picture.
Specifically, the conversion standard is obtained according to a preset threshold of the display panel and a high power consumption picture which is displayed by the display panel and exceeds preset power consumption.
In other words, for the same type of display panel, the corresponding conversion standard is obtained according to the preset threshold of the display panel and the preset power consumption frame displayed by the display panel.
It should be noted that the preset power consumption frame refers to a display frame in which power consumption exceeds a power consumption threshold.
Preferably, after the second Gamma voltage is obtained, the gray scale ACC adjustment may be performed according to each Gamma binding voltage to obtain a luminance voltage corresponding to each gray scale.
And S23, obtaining a preset threshold according to the display frequency of the display panel and the temperature of the driving module of the display panel.
Wherein, the preset threshold can be expressed as: when the driving module outputs the first Gamma voltage, the driving module (e.g., the driving IC) of the display panel displays the display frequency of the display panel at an achievable maximum temperature, wherein the achievable maximum temperature represents a maximum temperature of the driving module that does not damage the driving module or affect the display. The central control board (TCON) analyzes the display frequency (i.e., the scanning frequency of the gate line) for displaying a plurality of pictures according to the front-end gating signal (DE signal), and tests the temperature of the driving module corresponding to each display picture, and finally determines the preset threshold.
For example, the highest display frequency of the display device is 240Hz, and if the display frequency of the current frame exceeds 200Hz, the temperature of the driving module is too high; and when the display frequency of the current picture is 200Hz, the temperature of the driving module is normal, and the preset threshold value of the display device can be determined to be 200 Hz.
And S24, judging whether the current display frequency of the display panel is greater than a preset threshold value.
First, a current display frequency of a display panel is obtained, and specifically, a central control panel (TCON) in a display device corresponding to the display panel analyzes the display frequency of a current display picture according to a front end strobe signal (DE signal). Next, the central control board (TCON) determines whether the current display frame of the display panel is a high power consumption frame according to the frame detection function pdf (pattern Detect function).
It should be noted that the determination of the high power consumption picture is related to the pixel structure and the inversion scheme of the display panel.
And S251, if the current display frequency of the display panel is greater than a preset threshold value, enabling a driving module of the display panel to output a second Gamma voltage to realize display.
When the current display frequency of the display panel is greater than the preset threshold, it is indicated that if the driving module outputs the first Gamma voltage, the temperature of the driving module of the display panel already exceeds the maximum temperature that can be reached by the driving module, that is, the temperature of the driving module may possibly have an adverse effect on the driving module itself and the display. Therefore, the second Gamma voltage is selected to be output by the driving module of the display panel to realize the display, so as to ensure that the temperature of the driving module is not too high.
When the current display frequency of the display panel is greater than the preset threshold value, the central control panel (TCON) sends a switching control signal to the display Driver IC (source Driver IC), so that the picture is driven to be displayed through the second Gamma voltage.
Specifically, the outputting of the second Gamma voltage by the driving module of the display panel to realize the display includes: the power consumption of the output end of the driving module is reduced by reducing the analog voltage of the input end of the driving module.
The second Gamma voltage is lower than the first Gamma voltage, and in order to further reduce the temperature (power consumption) of the driving module, the power consumption of the output end of the driving module can be reduced by reducing the Analog Voltage (AVDD) of the input end of the driving module.
It should be noted that, in the prior art, adjusting the power consumption of the driving module is generally performed by changing the resistance of the voltage dividing circuit in the driving module. The power consumption of the driving module is adjusted by the method, the analog voltage of the input end of the driving module is directly adjusted, and the adjusting mode is simpler and more convenient.
And S252, if the current display frequency of the display panel is less than or equal to the preset threshold, enabling the driving module of the display panel to output a first Gamma voltage to realize display.
When the current display frequency of the display panel is less than or equal to the preset threshold, it is indicated that if the driving module outputs the first Gamma voltage, the temperature of the driving module of the display panel is normal, that is, the temperature of the driving module does not adversely affect the driving module and the display. Therefore, the driving module of the display panel is selected to output the first Gamma voltage to realize the display so as to ensure the optimal brightness of the display picture.
It should be noted that the display driving method of this embodiment may be performed once in each frame during the display process of the display panel, or may be performed once in every several frames during the display process of the display panel.
In the display driving method of the present embodiment, the selective driving is performed by establishing the first Gamma voltage and the second Gamma voltage. When the temperature of a driving module (such as a driving IC) is normal, such as when a high-frequency conventional picture or a low-frequency heavy-load picture is displayed, a first Gamma voltage (conventional Gamma voltage) is adopted for picture display driving; when the temperature of the driving module (such as the driving IC) is too high, such as under the condition of displaying high refresh rate and heavy-load picture, the second Gamma voltage is adopted to carry out picture display driving. Because each gray scale voltage value corresponding to the second Gamma voltage is lower than each gray scale voltage value corresponding to the first Gamma voltage, the driving voltage and the current can be effectively reduced, and the temperature of the driving module can not be too high, especially the temperature of an integrated power management circuit (PMIC), a source driving unit (COF IC) and the like.
In addition, the display device manufactured by adopting the display driving method can be free of heat dissipation glue or heat dissipation paste aiming at the driving module, so that the cost of the display device is effectively lowered.
It should be noted that the display driving method of the present embodiment is applicable to various types of liquid crystal display panels, and therefore, the display driving method of the present embodiment is widely applied.
Example 3:
as shown in fig. 1 to 3, the present embodiment provides a display driving system for driving a display of a display panel, the display driving system including:
the first processing module is used for obtaining a first Gamma voltage according to a first relation, wherein the first relation is the relation between the voltage and the transmittance of the display panel;
and the second processing module is used for obtaining a second Gamma voltage according to the first relation and the conversion standard, wherein the second Gamma voltage is smaller than the first Gamma voltage for the same gray scale.
And the central control panel (TCON) is used for judging whether the current display frequency of the display panel is greater than a preset threshold value.
And the first output module is used for enabling the driving module of the display panel to output a second Gamma voltage to realize display if the current display frequency of the display panel is greater than a preset threshold value.
And the second output module is used for enabling the driving module of the display panel to output the first Gamma voltage to realize display if the current display frequency of the display panel is less than or equal to a preset threshold value.
Specifically, the first output module may be any one of a programmable power management circuit (PMIC), a programmable Gamma buffer circuit chip (P-Gamma), a Gamma split voltage power string, and a Driver IC (Driver IC) with a built-in programmable Gamma circuit; the second output module can be any one of a programmable power management circuit (PMIC), a programmable Gamma buffer circuit chip (P-Gamma), a Gamma split voltage power pack string, and a Driver IC (Driver IC) with a built-in programmable Gamma circuit. It should be noted that the first output module and the second output module may also have other suitable structures, and are not limited to the above structures.
The display driving system of the present embodiment can perform selective driving. When the temperature of the driving module (such as the driving IC) is too high, such as under the condition of displaying high refresh rate and heavy-load picture, the second Gamma voltage is adopted to carry out picture display driving. Since the gray scale voltage values corresponding to the second Gamma voltage are lower than the gray scale voltage values corresponding to the first Gamma voltage, the driving voltage and the current can be effectively reduced, so that the temperature of the driving module is not too high, especially the temperature of an integrated power management circuit (PMIC), a source driving unit (COF IC) and the like.
Example 4:
as shown in fig. 1 to 3, the present embodiment provides a display device including: a display panel and the display driving system in embodiment 3.
Specifically, the display device can be any product or component with a display function, such as a liquid crystal display panel, electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While embodiments in accordance with the invention have been described above, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A display driving method for driving a display of a display panel, the display driving method comprising:
obtaining a first Gamma voltage according to a first relation, wherein the first relation is the corresponding relation between the voltage and the transmittance of the display panel;
obtaining a preset threshold according to the display frequency of the display panel and the temperature of a driving module of the display panel;
obtaining a conversion standard according to the preset threshold and a preset power consumption picture displayed by the display panel;
obtaining a second Gamma voltage according to the first relation and the conversion standard, wherein the second Gamma voltage is smaller than the first Gamma voltage for the same gray scale;
judging whether the current display frequency of the display panel is greater than the preset threshold value or not;
and if the current display frequency of the display panel is greater than the preset threshold value, enabling a driving module of the display panel to output the second Gamma voltage so as to realize display.
2. The method according to claim 1, wherein the determining whether the current display frequency of the display panel is greater than a preset threshold further comprises:
and if the current display frequency of the display panel is less than or equal to the preset threshold value, enabling a driving module of the display panel to output the first Gamma voltage so as to realize display.
3. The display driving method according to claim 1, wherein the outputting of the second Gamma voltage by the driving module of the display panel to realize the display comprises:
the power consumption of the output end of the driving module is reduced by reducing the analog voltage of the input end of the driving module.
4. The method according to claim 1, wherein the determining whether the current display frequency of the display panel is greater than a preset threshold comprises:
and acquiring the current display frequency of the display panel.
5. A display driving system for driving a display of a display panel, the display driving system comprising:
the display device comprises a first processing module, a second processing module and a control module, wherein the first processing module is used for obtaining a first Gamma voltage according to a first relation, and the first relation is a corresponding relation between the voltage and the transmittance of the display panel; obtaining a preset threshold according to the display frequency of the display panel and the temperature of a driving module of the display panel; obtaining a conversion standard according to the preset threshold and a preset power consumption picture displayed by the display panel; the second processing module is used for obtaining a second Gamma voltage according to the first relation and the conversion standard, wherein the second Gamma voltage is smaller than the first Gamma voltage for the same gray scale;
the central control panel is used for judging whether the current display frequency of the display panel is greater than the preset threshold value or not;
and the first output module is used for enabling the driving module of the display panel to output the second Gamma voltage to realize display if the current display frequency of the display panel is greater than the preset threshold value.
6. The display driving system according to claim 5, further comprising:
and the second output module is used for enabling the driving module of the display panel to output the first Gamma voltage to realize display if the current display frequency of the display panel is less than or equal to a preset threshold value.
7. The display driving system according to claim 6, wherein the first output module is any one of a programmable power management circuit, a programmable gamma buffer circuit chip, a gamma grouping string, and a built-in programmable gamma circuit driver; the second output module is any one of a programmable power management circuit, a programmable gamma buffer circuit chip, a gamma split-voltage power pack string and a built-in programmable gamma circuit driver.
8. A display device, comprising: a display panel and a display driving system as claimed in any one of claims 5 to 7.
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| CN114913821B (en) * | 2022-05-31 | 2024-03-22 | 合肥京东方显示技术有限公司 | Display module, control method thereof and display device |
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| CN104021767A (en) * | 2013-03-01 | 2014-09-03 | 刘鸿达 | Gamma curve adjusting method, gamma voltage generator and display device |
| CN105793915A (en) * | 2013-10-10 | 2016-07-20 | 三星电子株式会社 | Display driving circuit, display device, and portable terminal including the display driving circuit and the display device |
| CN106157917A (en) * | 2016-08-31 | 2016-11-23 | 深圳市华星光电技术有限公司 | A kind of drive device for display that can reduce power consumption and driving method thereof |
| CN109686307A (en) * | 2019-01-04 | 2019-04-26 | 京东方科技集团股份有限公司 | Generation method and device, display panel, the display device of gamma reference voltage |
| CN110491351A (en) * | 2019-09-27 | 2019-11-22 | 京东方科技集团股份有限公司 | A kind of driving method of display panel, its driving device and display device |
| CN110969980A (en) * | 2019-12-27 | 2020-04-07 | Tcl华星光电技术有限公司 | Display device and driving method thereof |
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