CN107784989B - Liquid crystal display device with camera module - Google Patents
Liquid crystal display device with camera module Download PDFInfo
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- CN107784989B CN107784989B CN201711023177.3A CN201711023177A CN107784989B CN 107784989 B CN107784989 B CN 107784989B CN 201711023177 A CN201711023177 A CN 201711023177A CN 107784989 B CN107784989 B CN 107784989B
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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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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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
- G09G3/3406—Control of illumination source
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Studio Devices (AREA)
Abstract
The invention provides a liquid crystal display device with a camera module, which comprises a display module, a camera module arranged towards a display area of the display module, a control module and a backlight compensation structure, wherein the control module is used for controlling the display module to be in a transparent state and closing display of the display area facing the camera module when the camera module is started, and controlling the display module to be in a transparent state and opening display of the display area facing the camera module when the camera module is closed; the backlight compensation structure is used for supplementing backlight to the display module when the camera module is closed and closing the camera module when the camera module is opened. According to the liquid crystal display device with the camera module, the light incidence requirement of the camera module is ensured when the camera module is opened, interference light cannot enter the camera module to influence imaging, and the backlight light requirement and normal display of the display module when the camera module does not work are ensured when the camera module is closed.
Description
Technical Field
The invention relates to the technical field of camera shooting, in particular to a liquid crystal display device with a camera shooting module.
Background
The liquid crystal display device is the most extensive display device of present application, and the liquid crystal display device has advantages such as frivolous, the energy consumption is little, radiationless, and is higher and higher to the multi-functional demand of liquid crystal display device along with people now, and more liquid crystal display device requires to dispose the module of making a video recording, especially to wearable equipment such as smart mobile phone, handheld devices such as panel computer or intelligent wrist-watch, the configuration of the module of making a video recording often is must. The image pickup module and the displayable area of the display module in the existing liquid crystal display device with the image pickup module are required to be separately arranged, because the display module does not emit light, the backlight unit is required to provide backlight light during working, the image pickup module is lightproof, and after the image pickup module is arranged corresponding to the display area of the display module, the backlight light can be influenced to enter the display module, so that the defect that the display module is just opposite to the local area backlight of the image pickup module is caused, and the display effect is influenced; meanwhile, the normal work of the camera module also has a requirement on light incidence, and the normal light incidence of the camera module can be influenced when the camera module is arranged in a visible area of the display module. In order to realize the arrangement of the camera module facing the display area of the display module, the OLED display module capable of self-luminescence is adopted to replace a liquid crystal display module, so that the problem of insufficient backlight is solved, but the production process of the OLED display module is complex and the cost is high; the scheme that the camera module is arranged at the corner position of the display area of the display module is also provided, the characteristic that the display requirement is not high under the common condition of the corner position of the display area is utilized, but the scheme has certain influence on a display picture and also has influence on the shooting range of the camera module; the module of making a video recording is arranged in the liquid crystal display device back at present also, utilizes the revolution mechanic to make a video recording the module and turn to positive scheme when needs use then, but such technical scheme start-up time is long when needs are shot, has influenced and has shot and experienced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a liquid crystal display device with a camera module, which can solve the problem that the camera module cannot be arranged corresponding to the display area of the display module, effectively ensure the backlight requirement of the normal work of the display module, ensure the light incidence requirement of the camera module when the camera module works normally, and realize the normal work of the display module and the camera module arranged corresponding to the display area.
In order to solve the above technical problem, the present invention provides a liquid crystal display device with a camera module, which includes a display module and a camera module disposed toward a display area of the display module, and further includes: the control module is electrically connected with the camera module and the display module and is used for controlling the display module to be in a transparent state when the camera module is started and to be in a closed display mode when facing the display area of the camera module, and controlling the display module to be in a transparent state when the camera module is stopped and to be in an open display mode when facing the display area of the camera module; the backlight compensation structure is electrically connected with the camera module and used for supplementing backlight to the display module when the camera module is closed and closing the camera module when the camera module is opened.
As a preferred scheme of the present invention, the display module includes a display panel and a backlight unit, the backlight unit is provided with a mounting hole for mounting the camera module, and the camera module is embedded in the mounting hole of the backlight unit.
As a preferable mode of the present invention, an annular reflection sheet is attached to an annular wall of the mounting hole surrounding the camera module.
As a preferable aspect of the present invention, the backlight compensation structure includes a circuit board attached to the mounting hole and a plurality of LEDs electrically connected to the circuit board.
As a preferable scheme of the present invention, the backlight compensation structure further includes an annular light guide plate disposed corresponding to the plurality of LEDs, the circuit board is attached to an annular wall of the mounting hole surrounding the camera module, and the LEDs are top-emission LEDs.
As a preferable aspect of the present invention, the backlight compensation structure includes a circuit board disposed on the camera module and a plurality of LEDs electrically connected to the circuit board.
As a preferable scheme of the present invention, the present invention further includes a light shielding structure, where the light shielding structure is used to prevent backlight from entering the camera module when the camera module is in operation.
As a preferred embodiment of the present invention, the light shielding structure is a retractable sleeve sleeved on the camera module, and when the camera module works, the retractable sleeve extends to abut against the display module.
The invention has the following technical effects: according to the liquid crystal display device with the camera module, when the camera module is started, the control module synchronously controls the display module to be in a transparent state in a way of closing display in a way of facing a display area of the camera module, and simultaneously the backlight compensation structure is kept in a closed state when the camera module is started, so that the light incidence requirement of the camera module is ensured, and interference light rays cannot enter the camera module to influence imaging; when the camera module is closed, the backlight compensation structure is started to supplement backlight to the display module, and the control module controls the display module to be directly opposite to the display area of the camera module to start display, so that the backlight requirement and normal display of the display module when the camera module does not work are ensured. In addition, the backlight unit is provided with the mounting hole for mounting the camera module, and the camera module is embedded into the mounting hole of the backlight unit, so that the thickness of the liquid crystal display device can be effectively reduced; the installation hole is surrounded on the annular wall of the camera module, reflection is attached to the annular wall, so that light of the backlight unit cannot be diffused into the camera module to influence imaging of the camera module.
Drawings
Fig. 1 is a schematic view of a camera module arrangement of a liquid crystal display device with a camera module according to an embodiment of the present invention;
fig. 2 is a block diagram of a liquid crystal display device with a camera module according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating an installation of a camera module according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a backlight compensation structure according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another backlight compensation structure according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a light shielding structure according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another backlight compensation structure according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1-2, it shows a schematic structural diagram of a liquid crystal display device with a camera module according to the present invention. This liquid crystal display device includes display module assembly 1 and orientation the module 2 of making a video recording that 1 display area of display module assembly set up because the module 2 orientation of making a video recording 1 display area of display module assembly sets up, and display module assembly 1 exists one promptly and makes a video recording just right local display area. The liquid crystal display device also comprises a control module 3, wherein the control module 3 is electrically connected with the camera module 2 and the display module 1, and is used for controlling the display module 1 to be in a state of closing display and becoming a light-transmitting state, which is directly opposite to the display area of the camera module 2, when the camera module 2 is opened, and controlling the display module 1 to be in a state of opening display, which is directly opposite to the display area of the camera module 2, when the camera module 2 is closed; the liquid crystal display device further comprises a backlight compensation structure 4, wherein the backlight compensation structure 4 is electrically connected with the camera module 2 and used for supplementing backlight to the display module 1 when the camera module 2 is closed and closing the camera module 2 when the camera module 2 is opened.
When the camera module 2 is opened, as the imaging of the camera module 2 has certain requirements for incident light, in order to effectively image the camera module 2, the control module 3 electrically connected to the camera module 2 synchronously controls the display module 1 to face the display area of the camera module 2 to close the display and form a light-transmitting state, so that the incident light requirement of the camera module 2 is ensured, and normal imaging can be realized; meanwhile, the backlight compensation structure 4 keeps a closed state when the camera module 2 is opened, so that interference light rays cannot enter the camera module 2 to influence imaging.
When the camera module 2 is closed, the camera module 2 is arranged towards the display area of the display module 1, so that the backlight light which is directly opposite to the display area of the camera module 2 is inevitably influenced, at the moment, the backlight compensation structure 4 which is electrically connected to the camera module 2 is opened to supplement backlight to the display module 1, the backlight requirement of the display module 1 is ensured, meanwhile, the control module 3 controls the display module 1 to be directly opposite to the display area of the camera module 2 to start display, and the normal display effect of the display module 1 when the camera module 2 does not work is ensured. Preferably, the brightness of the compensation light provided by the backlight compensation structure 4 should be consistent with the backlight brightness provided by the backlight unit 12, so as to avoid a bright area or a dark area on the display module 1, thereby obtaining a better display effect.
Specifically, as shown in fig. 3, the display module 1 includes a display panel 11 and a backlight unit 12, a mounting hole 125 for mounting the camera module 2 is formed in the backlight unit 12, and the camera module 2 is embedded in the mounting hole 125 of the backlight unit 12. In this embodiment, the backlight unit 12 includes a bottom frame 124, a reflective sheet 123 and a light guide plate 122 disposed on the bottom frame 124, and an optical film set 121 disposed on the light guide plate 122, wherein the optical film set 121, the light guide plate 122, and the reflective sheet 123 are sequentially provided with stacked through holes, thereby forming a mounting hole 125 for mounting the camera module 2. Furthermore, the annular wall of the mounting hole 125 surrounding the camera module 2 is attached with an annular reflection sheet 126. Thus, the mounting hole 125 formed in the backlight unit 12 can be used to accommodate the camera module 2, which can effectively reduce the thickness of the liquid crystal display device. Moreover, since the annular reflection sheet 126 is attached to the annular wall of the mounting hole 125 surrounding the camera module 2, the light of the backlight unit 12 is not diffused into the camera module 2 to affect the image formation of the camera module 2. In this embodiment, the display panel 11 includes a lower polarizer, an array substrate disposed on the lower polarizer, a liquid crystal layer, a color film substrate, and an upper polarizer attached to the color film substrate, and in consideration of a certain influence of the color film substrate on the incident light of the camera module, the display panel can perform anti-reflection effect processing on the color film substrate, and can enhance the image sharpness by combining with the existing software algorithm, thereby effectively improving the imaging effect.
Further, as shown in fig. 4, the backlight compensation structure 4 includes a circuit board 41 attached to the mounting hole 125 and a plurality of LEDs 42 electrically connected to the circuit board 41; thus, the light emitted from the LED42 can be used as backlight compensation light to ensure the backlight brightness of the display area facing the camera module 2. Further, as shown in fig. 5, the backlight compensation structure 4 further includes an annular light guide plate 122 disposed corresponding to the plurality of LEDs 42, the circuit board 41 is attached to the annular wall of the mounting hole 125 surrounding the camera module 2, and the LED42 is a top-emitting LED 42. In the embodiment, the annular light guide plate 122 has a T-shaped cross section, so that the light emitted from the LEDs 42 enters the light guide plate 122 in a limited manner and is reflected for multiple times to form more uniform and effective backlight light to provide backlight compensation for the display module 1.
Further, the liquid crystal display device further comprises a light shielding structure 21, wherein the light shielding structure 21 is used for preventing backlight from entering the camera module 2 when the camera module 2 works. In this embodiment, as shown in fig. 6, the light shielding structure 21 is a retractable sleeve sleeved on the camera module 2, and when the camera module 2 works, the retractable sleeve extends to abut against the display module 1. Because a certain space is left between the backlight unit 12 and the display module 1, in order to avoid that light rays emitted by the backlight unit 12 enter the camera module 2 when the camera module 2 is opened, the retractable sleeve is raised to be long enough to support the display module 1, so that the incident light of the camera module 2 is not interfered by backlight, and the imaging effect is improved; when the camera module 2 is closed, the retractable sleeve can be shortened, and light rays of the backlight compensation structure 4 can enter the area of the display module 1, which is directly opposite to the camera module 2, so that the normal work of the display module 1 is ensured.
Example two
The embodiment provides a liquid crystal display device with a camera module. This liquid crystal display device includes display module assembly 1 and orientation the module 2 of making a video recording that 1 display area of display module assembly set up because the module 2 orientation of making a video recording 1 display area of display module assembly sets up, and display module assembly 1 exists one promptly and makes a video recording just right local area. The liquid crystal display device also comprises a control module 3, wherein the control module 3 is electrically connected with the camera module 2 and the display module 1, and is used for controlling the display module 1 to be in a state of closing display and becoming a light-transmitting state, which is directly opposite to the display area of the camera module 2, when the camera module 2 is opened, and controlling the display module 1 to be in a state of opening display, which is directly opposite to the display area of the camera module 2, when the camera module 2 is closed; the liquid crystal display device further comprises a backlight compensation structure 4, wherein the backlight compensation structure 4 is electrically connected with the camera module 2 and used for supplementing backlight to the display module 1 when the camera module 2 is closed and closing the camera module 2 when the camera module 2 is opened.
The main difference between the present embodiment and the previous embodiment is that the backlight compensation structure 4 of the present embodiment includes a circuit board 41 disposed on the camera module 2 and a plurality of LEDs 42 electrically connected to the circuit board 41. As shown in fig. 5, the top of the camera module 2 is attached with the circuit board 41 and the LEDs 42, so that the backlight compensation structure 4 on the top of the camera module 2 is also opposite to the display module 1, thereby ensuring a more uniform backlight compensation effect when providing backlight compensation. It should be noted that the specific shape of the backlight compensation structure 4 disposed at the top of the camera module 2 is not limited, and the light inlet of the camera module 2 is not blocked during installation.
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a take liquid crystal disply device of module of making a video recording, includes display module and orientation the module of making a video recording that the display area of display module set up, its characterized in that still includes:
the control module is electrically connected with the camera module and the display module and is used for controlling the display module to be in a transparent state when the camera module is started and to be in a closed display mode when facing the display area of the camera module, and controlling the display module to be in a transparent state when the camera module is stopped and to be in an open display mode when facing the display area of the camera module;
the backlight compensation structure is electrically connected with the camera module and used for supplementing backlight to the display module when the camera module is closed and closing the camera module when the camera module is opened.
2. The LCD device of claim 1, wherein the display module comprises a display panel and a backlight unit, the backlight unit is provided with a mounting hole for mounting the camera module, and the camera module is embedded in the mounting hole of the backlight unit.
3. The liquid crystal display device according to claim 2, wherein an annular reflection sheet is attached to an annular wall of the mounting hole surrounding the camera module.
4. The liquid crystal display device of claim 3, wherein the backlight compensation structure comprises a circuit board attached to the mounting hole and a plurality of LEDs electrically connected to the circuit board.
5. The LCD device of claim 4, wherein the backlight compensation structure further comprises an annular light guide plate disposed corresponding to the LEDs, the circuit board is attached to an annular wall of the mounting hole surrounding the camera module, and the LEDs are top-emitting LEDs.
6. The LCD device of claim 1, wherein the backlight compensation structure comprises a circuit board disposed on the camera module and a plurality of LEDs electrically connected to the circuit board.
7. The LCD device of any one of claims 1-6, further comprising a light shield structure configured to prevent backlight from entering the camera module when the camera module is in operation.
8. The LCD device of claim 7, wherein the light shielding structure is a retractable sleeve that is disposed over the camera module, and the retractable sleeve extends to abut against the display module when the camera module is in operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023177.3A CN107784989B (en) | 2017-10-27 | 2017-10-27 | Liquid crystal display device with camera module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023177.3A CN107784989B (en) | 2017-10-27 | 2017-10-27 | Liquid crystal display device with camera module |
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| CN107784989A CN107784989A (en) | 2018-03-09 |
| CN107784989B true CN107784989B (en) | 2020-04-14 |
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| CN108181762B (en) * | 2017-12-28 | 2020-07-24 | 武汉华星光电技术有限公司 | Liquid crystal display and backlight module thereof |
| US10663792B2 (en) | 2018-03-20 | 2020-05-26 | Guangdong Oppo Mobile Telecommunications Corp., Lt | Display screen and mobile terminal |
| CN108737598A (en) * | 2018-04-04 | 2018-11-02 | 江西合力泰科技有限公司 | Cell Phone Design method with the lower camera of screen |
| CN108650343A (en) * | 2018-04-11 | 2018-10-12 | 深圳市海派通讯科技有限公司 | A kind of structure and hidden method that intelligent terminal preceding camera is hiding |
| CN110557473A (en) * | 2018-05-31 | 2019-12-10 | 北京小米移动软件有限公司 | Display module and electronic equipment |
| CN110557477A (en) * | 2018-06-01 | 2019-12-10 | Oppo广东移动通信有限公司 | display screen assembly, electronic equipment and display control method |
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| CN112365852B (en) * | 2020-10-27 | 2021-10-15 | 厦门天马微电子有限公司 | Display module, driving method thereof and display device |
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| CN107784989A (en) | 2018-03-09 |
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