CN115268124A - High-reliability wide-viewing-angle display module and preparation method thereof - Google Patents
High-reliability wide-viewing-angle display module and preparation method thereof Download PDFInfo
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- CN115268124A CN115268124A CN202210530146.1A CN202210530146A CN115268124A CN 115268124 A CN115268124 A CN 115268124A CN 202210530146 A CN202210530146 A CN 202210530146A CN 115268124 A CN115268124 A CN 115268124A
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- frame plate
- display module
- fixedly connected
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- 238000002360 preparation method Methods 0.000 title abstract description 6
- 238000002347 injection Methods 0.000 claims description 45
- 239000007924 injection Substances 0.000 claims description 45
- 239000000428 dust Substances 0.000 claims description 32
- 238000009434 installation Methods 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 12
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 241000447495 Equulites leuciscus Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- G02F1/1316—Methods for cleaning the liquid crystal cells, or components thereof, during manufacture: Materials therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a high-reliability wide-viewing-angle display module and a preparation method thereof, and relates to the technical field of display modules.
Description
Technical Field
The invention relates to the technical field of display modules, in particular to a high-reliability wide-viewing-angle display module and a preparation method thereof.
Background
The LCD screen is as main display device, and the wide application is in many fields such as national defense, industry, family expenses, communal facility, and the display is required more and more at present: the display device has the advantages of small size, wide working temperature range, low power consumption, wide viewing angle range and capability of displaying various characters. The traditional 128 x 128 medium-sized liquid crystal display adopts an SMT structure, needs a controller IC, a memory IC, a driver IC, a DC/DC power supply conversion circuit IC, a bias circuit and a temperature compensation circuit, is large in size and complex in processing technology, particularly has high power consumption current, cannot meet the requirement of low power consumption and cannot realize wide-viewing-angle display.
The prior patent (publication number: CN 204360060U) provides an ultralow-power-consumption and wide-viewing-angle COG liquid crystal display module, which adopts an ultralow-power-consumption COG bonding technology, has a compact structure and a small volume, and is ultralow in power consumption; the use of a side-lit LED backlight not only allows the module to operate at night but also facilitates installation; the low-resistance glass technology is adopted to realize low-power consumption display, the module adopts a 4-wire serial interface, the number of connecting wires with an external device is small, and the data transmission speed is high.
When this ultra-low power consumption wide visual angle COG liquid crystal display module assembly in-service use, consider that the radiating factor generally can set up the louvre, because of so its display module membrane internally mounted's components and parts can adhere to a large amount of dust on its surface along with long-term the use, will lead to the partial heat energy that produces during components and parts operation to be difficult to the effluvium, increased display module assembly's consumption, caused the wide visual angle of high reliability display module assembly awkward condition to appear.
Disclosure of Invention
The invention provides a high-reliability wide-viewing-angle display module and a preparation method thereof, which solve the technical problems that when the ultra-low-power-consumption wide-viewing-angle COG liquid crystal display module is actually used, heat dissipation holes are generally arranged in consideration of heat dissipation factors, and because components mounted inside the display module are used for a long time, a large amount of dust is attached to the surfaces of the components, partial heat energy generated during the operation of the components is difficult to dissipate, the power consumption of the display module is increased, and the high-reliability wide-viewing-angle display module is inconvenient to use.
In order to solve the technical problems, the invention provides a high-reliability wide-viewing angle display module, which comprises a rear frame plate, wherein a front frame plate is clamped on one side of the rear frame plate, a display screen is fixedly connected in the front frame plate, a dust removal component is arranged in the rear frame plate, the dust removal component comprises a mounting frame arranged in the rear frame plate, a mounting groove is formed in the mounting frame, an air injection frame is connected in the mounting groove in a sliding manner, a fan is fixedly connected on one side of the rear frame plate, an air outlet of the fan is fixedly connected with an air pipe, a sliding opening matched with the air pipe is formed in the mounting frame, one end of the air pipe is communicated with the inside of the air injection frame, the air pipe is reserved with a length enough for the air injection frame to slide, so that the air injection frame is prevented from being blocked from sliding, the dust removal component is started by the fan to remove dust by blowing of the air injection frame, the rear frame plate is made of VA technology and low-resistance conductive glass, the dust removal assembly further comprises a reset spring fixedly mounted on one side of the air injection frame, the other side of the air injection frame is fixedly connected with a traction rope, a rope winding roller is rotatably connected in the rear frame plate and is connected with the traction rope in a winding manner, a driving motor is fixedly connected on one side of the rear frame plate and is in transmission connection with the rope winding roller, the air injection frame is driven to move by the traction rope through the starting of the driving motor in the dust removal assembly and is reset through the elastic force of the reset spring, so that the air injection frame slides in the mounting frame, the air injection frame blows air to components mounted in the rear frame plate through the matching of a fan and an air pipe, the dust on the surface of the components is cleaned, and the condition that part of heat of the components mounted in the rear frame plate is difficult to dissipate is avoided, the power consumption of the display module is reduced, and the high-reliability wide-viewing-angle display module is facilitated to use.
Preferably, one side fixedly connected with installation cover of back deckle board, driving motor fixed mounting has improved the stability of being connected between back deckle board and the driving motor through the setting of installation cover in the inside of installation cover.
Preferably, one side fixedly connected with guide block of gas injection frame, set up the guide way with guide block looks adaptation in the mounting groove, through the relative slip between guide block and the guide way, to the moving direction of gas injection frame, help the use of gas injection frame.
Preferably, the filter screen is fixedly connected in the air injection frame, so that sundries can be prevented from being blocked in the air injection frame.
Preferably, the fixed ring is fixedly connected in the air injection frame, a fixed hole matched with the air pipe is formed in the fixed ring in a penetrating mode, and the connection stability between the air pipe and the air injection frame is improved.
Preferably, a plurality of heat dissipation holes are formed in the mounting cover in a penetrating manner, and heat generated when the driving motor operates can be discharged through the heat dissipation holes.
Preferably, the auxiliary pulley is rotatably connected in the mounting frame, the traction rope is in sliding connection with the auxiliary pulley, so that the sliding friction force between the traction rope and the mounting frame is weakened, and the traction rope is beneficial to use.
A preparation method of a high-reliability wide-viewing-angle display module comprises the following steps:
providing a rear frame plate and a front frame plate, arranging an installation mark on the rear frame plate, arranging an arrow mark indicating the direction on the front frame plate, and arranging a plurality of heat dissipation holes on the rear frame plate;
adjusting the direction of the front frame plate according to the arrow mark and the installation mark, and assembling and connecting the front frame plate with the rear frame plate;
the back of the back frame plate is provided with a dust removal assembly, and the dust removal assembly can blow air to electronic components inside the back frame plate in the operation process, so that the purpose of cleaning and removing dust is achieved.
Compared with the related art, the high-reliability wide-viewing angle display module provided by the invention has the following beneficial effects:
according to the invention, the air injection frame is driven to move by the traction rope through the starting of the driving motor in the dust removal assembly and is reset through the elastic force of the reset spring, so that the air injection frame slides in the mounting frame, the air injection frame blows air to the components and parts mounted inside the rear frame plate through the matching of the fan and the air pipe, and the dust on the surface of the components and parts is cleaned, so that the condition that the heat of the components and parts mounted inside the rear frame plate is difficult to dissipate is avoided, the power consumption of the display module is reduced, and the high-reliability wide-viewing angle display module is facilitated to use.
Drawings
FIG. 1 is a perspective view of a high reliability wide viewing angle display module;
FIG. 2 is a schematic diagram of a high-reliability wide-viewing angle display module;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
fig. 4 is an enlarged view of the structure at B in fig. 2.
Reference numbers in the figures: 1. a rear frame plate; 2. a front frame plate; 3. a display screen; 4. a mounting frame; 5. a hauling rope; 6. a drive motor; 7. mounting a cover; 8. a rope winding roller; 9. a fan; 10. a return spring; 11. filtering with a screen; 12. a guide block; 13. an air-jet frame; 14. a fixing ring; 15. and (7) an air pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are referred to, they refer to the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the first embodiment, as shown in fig. 1-4, a high-reliability wide-viewing angle display module comprises a rear frame plate 1, a front frame plate 2 is clamped on one side of the rear frame plate 1, a display screen 3 is fixedly connected in the front frame plate 2, a dust removal assembly is arranged in the rear frame plate 1, the dust removal assembly comprises a mounting frame 4 arranged in the rear frame plate 1, a mounting groove is arranged in the mounting frame 4, an air injection frame 13 is slidably connected in the mounting groove, a fan 9 is fixedly connected to one side of the rear frame plate 1, an air outlet of the fan 9 is fixedly connected with an air duct 15, a sliding opening matched with the air duct 15 is arranged in the mounting frame 4, one end of the air duct 15 is communicated with the inside of the air injection frame 13, the air duct 15 is reserved with a length enough for the air injection frame 13 to slide, so as to avoid blocking the air injection frame 13 from sliding, the dust removal assembly is started by the fan 9 and is made of the air injection frame 13, the rear frame plate 1 is made of VA technology and low-resistance conductive glass, the dust removal assembly further comprises a reset spring 10 fixedly mounted on one side of an air injection frame 13, the other side of the air injection frame 13 is fixedly connected with a traction rope 5, a rope winding roller 8 is rotatably connected in a rear frame plate 1, the traction rope 5 is wound and connected with the rope winding roller 8, one side of the rear frame plate 1 is fixedly connected with a driving motor 6, the driving motor 6 is in transmission connection with the rope winding roller 8, the air injection frame 13 is driven to move by the traction rope 5 through the starting of the driving motor 6 in the dust removal assembly and is reset through the elasticity of the reset spring 10, so that the air injection frame 13 slides in the mounting frame 4, the air injection frame 13 blows air to components mounted inside the rear frame plate 1 through the matching of a fan 9 and an air pipe 15, the dust on the surface of the components is cleaned, and the condition that part of the heat of the components mounted inside the rear frame plate 1 is difficult to dissipate is avoided, the power consumption of the display module is reduced, and the high-reliability wide-viewing-angle display module is facilitated to use.
Embodiment two, on the basis of embodiment one, one side fixedly connected with installation cover 7 of back deckle board 1, driving motor 6 fixed mounting has improved the stability of being connected between back deckle board 1 and driving motor 6 through the setting of installation cover 7 in the inside of installation cover 7, one side fixedly connected with guide block 12 of gas injection frame 13, the guide way with guide block 12 looks adaptation has been seted up in the mounting groove, through the relative slip between guide block 12 and the guide way, to the moving direction of gas injection frame 13, help the use of gas injection frame 13, fixedly connected with filter screen 11 in the gas injection frame 13, can avoid debris to block up the inside at gas injection frame 13.
Third embodiment, on the basis of first embodiment, the solid fixed ring 14 of fixedly connected with in the jet-propelled frame 13, the fixed ring 14 interior run through set up with the fixed orifices of 15 looks adaptations of tuber pipe, the connection stability between tuber pipe 15 and the jet-propelled frame 13 has been improved, run through in the installation cover 7 and seted up a plurality of louvres, the accessible louvre discharges the heat that driving motor 6 produced when moving, the helping pulley is connected to the internal rotation of mounting bracket 4, haulage rope 5 and helping pulley sliding connection have weakened the sliding friction power between haulage rope 5 and the mounting bracket 4, help haulage rope 5's use.
The working principle is as follows:
when the surface of the component mounted inside the display module is covered by more dust, the rope winding roller 8 is rotated by starting the driving motor 6, the traction rope 5 is contracted by the rope winding roller 8, so that the traction rope 5 pulls the air injection frame 13 to move, the reset spring 10 stretches and deforms along with the air injection frame 13 when the air injection frame 13 is stressed and moves, the driving motor 6 is closed when the air injection frame 13 is close to the other side of the mounting groove of the mounting frame 4, the air injection frame 13 is pulled by the elasticity of the reset spring 10 to move and reset, the air injection frame 13 reciprocates inside the mounting frame 4 according to the operation, meanwhile, the fan 9 is started to transmit wind to the inside of the wind pipe 15 and is transmitted to the inside of the air injection frame 13 through the wind pipe 15, the component mounted inside the rear frame plate 1 is blown through the air injection frame 13, the dust attached to the surface of the component is cleaned, the blown dust can be discharged from the mounting groove, the situation that the part of the component mounted inside the rear frame plate 1 is difficult to be discharged is prevented, and the effect of cleaning the dust is also realized on the other hand.
It is to be noted that 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.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a wide visual angle display module assembly of high reliability, a serial communication port, including back deckle board (1), one side joint of back deckle board (1) has preceding deckle board (2), fixedly connected with display screen (3) in preceding deckle board (2), be equipped with the dust removal subassembly in back deckle board (1), the dust removal subassembly is including installing mounting bracket (4) in back deckle board (1), the mounting groove has been seted up in mounting bracket (4), sliding connection has jet-propelled frame (13) in the mounting groove, one side fixedly connected with fan (9) of back deckle board (1), the air outlet fixedly connected with tuber pipe (15) of fan (9), set up the slip mouth with tuber pipe (15) looks adaptation in mounting bracket (4), the one end and the inside intercommunication of jet-propelled frame (13) of tuber pipe (15), the dust removal subassembly passes through fan (9) and starts to be bloied and removes dust by jet-propelled frame (13).
2. The high-reliability wide-viewing-angle display module according to claim 1, wherein the dust removal assembly further comprises a return spring (10) fixedly mounted on one side of the air injection frame (13), the other side of the air injection frame (13) is fixedly connected with a traction rope (5), the rear frame plate (1) is rotatably connected with a rope winding roller (8), the traction rope (5) is wound on the rope winding roller (8), one side of the rear frame plate (1) is fixedly connected with a driving motor (6), and the driving motor (6) is in transmission connection with the rope winding roller (8).
3. The high-reliability wide-viewing angle display module set according to claim 2, wherein a mounting cover (7) is fixedly connected to one side of the back frame plate (1), and the driving motor (6) is fixedly mounted inside the mounting cover (7).
4. The module according to claim 2, wherein a guide block (12) is fixedly connected to one side of the air-jet frame (13), and a guide slot adapted to the guide block (12) is formed in the mounting slot.
5. The display module assembly as claimed in claim 2, wherein a filter (11) is fixedly connected in the air-jet frame (13).
6. The high-reliability wide-viewing-angle display module according to claim 2, wherein a fixing ring (14) is fixedly connected in the air-jet frame (13), and a fixing hole matched with the air pipe (15) penetrates through the fixing ring (14).
7. The module of claim 3, wherein the mounting cover (7) has a plurality of heat dissipation holes formed therethrough.
8. The high-reliability wide-viewing angle display module according to claim 2, wherein a helper pulley is rotatably connected in the mounting frame (4), and the traction rope (5) is slidably connected with the helper pulley.
9. A method for manufacturing a high-reliability wide-viewing angle display module according to any one of claims 1-8, comprising the steps of:
providing a rear frame plate and a front frame plate, arranging an installation mark on the rear frame plate, arranging an arrow mark indicating the direction on the front frame plate, and arranging a plurality of heat dissipation holes on the rear frame plate;
adjusting the direction of the front frame plate according to the arrow mark and the installation mark, and assembling and connecting the front frame plate with the rear frame plate;
the back of the back frame plate is provided with a dust removal assembly, and the dust removal assembly can blow air to electronic components inside the back frame plate in the operation process, so that the purpose of cleaning and removing dust is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530146.1A CN115268124B (en) | 2022-05-16 | 2022-05-16 | High-reliability wide-viewing angle display module and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530146.1A CN115268124B (en) | 2022-05-16 | 2022-05-16 | High-reliability wide-viewing angle display module and preparation method thereof |
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| Publication Number | Publication Date |
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| CN115268124A true CN115268124A (en) | 2022-11-01 |
| CN115268124B CN115268124B (en) | 2024-01-23 |
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|---|---|---|---|---|
| JPH11271704A (en) * | 1998-03-26 | 1999-10-08 | Sharp Corp | Manufacture of liquid crystal display element and dust removing device |
| CN107121798A (en) * | 2017-06-15 | 2017-09-01 | 盐城华星光电技术有限公司 | A kind of liquid crystal display protector |
| CN208789361U (en) * | 2018-05-07 | 2019-04-26 | 新昌县诺趣智能科技有限公司 | It is a kind of with can local wiping function automatic blackboard eraser |
| CN208834044U (en) * | 2018-03-13 | 2019-05-07 | 广州市学伟电子产品有限公司 | A kind of liquid crystal display |
| CN211207014U (en) * | 2019-12-31 | 2020-08-07 | 深圳市倍能达光电科技有限公司 | Dustproof liquid crystal display |
| CN111694463A (en) * | 2020-05-25 | 2020-09-22 | 孙王敏 | Touch screen |
| CN212211817U (en) * | 2020-07-14 | 2020-12-22 | 深圳市利鼎液晶科技有限公司 | Liquid crystal display with high-efficient heat radiation structure |
| CN112396978A (en) * | 2020-10-19 | 2021-02-23 | 江西鑫彩晨光电科技有限公司 | LED display screen with protection device |
| CN214555917U (en) * | 2021-02-03 | 2021-11-02 | 庆阳中庆农产品有限公司 | Dust removal mechanism for pumpkin seed production line |
| CN215494426U (en) * | 2021-08-05 | 2022-01-11 | 宿迁市坤奇电子有限公司 | Liquid crystal display screen with anti-static dust absorption function |
-
2022
- 2022-05-16 CN CN202210530146.1A patent/CN115268124B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11271704A (en) * | 1998-03-26 | 1999-10-08 | Sharp Corp | Manufacture of liquid crystal display element and dust removing device |
| CN107121798A (en) * | 2017-06-15 | 2017-09-01 | 盐城华星光电技术有限公司 | A kind of liquid crystal display protector |
| CN208834044U (en) * | 2018-03-13 | 2019-05-07 | 广州市学伟电子产品有限公司 | A kind of liquid crystal display |
| CN208789361U (en) * | 2018-05-07 | 2019-04-26 | 新昌县诺趣智能科技有限公司 | It is a kind of with can local wiping function automatic blackboard eraser |
| CN211207014U (en) * | 2019-12-31 | 2020-08-07 | 深圳市倍能达光电科技有限公司 | Dustproof liquid crystal display |
| CN111694463A (en) * | 2020-05-25 | 2020-09-22 | 孙王敏 | Touch screen |
| CN212211817U (en) * | 2020-07-14 | 2020-12-22 | 深圳市利鼎液晶科技有限公司 | Liquid crystal display with high-efficient heat radiation structure |
| CN112396978A (en) * | 2020-10-19 | 2021-02-23 | 江西鑫彩晨光电科技有限公司 | LED display screen with protection device |
| CN214555917U (en) * | 2021-02-03 | 2021-11-02 | 庆阳中庆农产品有限公司 | Dust removal mechanism for pumpkin seed production line |
| CN215494426U (en) * | 2021-08-05 | 2022-01-11 | 宿迁市坤奇电子有限公司 | Liquid crystal display screen with anti-static dust absorption function |
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| CN115268124B (en) | 2024-01-23 |
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