CN112987376A - Handwriting device based on TFT liquid crystal display screen and using method thereof - Google Patents
Handwriting device based on TFT liquid crystal display screen and using method thereof Download PDFInfo
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- CN112987376A CN112987376A CN202110351691.XA CN202110351691A CN112987376A CN 112987376 A CN112987376 A CN 112987376A CN 202110351691 A CN202110351691 A CN 202110351691A CN 112987376 A CN112987376 A CN 112987376A
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- crystal display
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 244000309464 bull Species 0.000 claims description 6
- 239000012459 cleaning agent Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000010409 thin film Substances 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- 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
- G02F1/13338—Input devices, e.g. touch panels
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (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 handwriting device based on a TFT (thin film transistor) liquid crystal display screen and a using method thereof, and relates to the technical field of TFT liquid crystal display screens. Including touch-sensitive screen and display screen frame, be provided with drive mechanism in the display screen frame, drive mechanism's top is provided with follower, follower's left side is provided with the connecting rod, the left end of connecting rod is fixed with the fixing base, the inner wall left side of fixing base is fixed with first spring, the right side of first spring is fixed with the fixed plate, the right side of fixed plate is fixed with cleaning module, cleaning module runs through the right side of fixing base. According to the handwriting device based on the TFT liquid crystal display screen and the using method thereof, when the touch screen is cleaned, the cleaning module moves upwards through the matching of the transmission mechanism, the driven mechanism and the connecting rod, and the effect of removing dirt on the screen can be achieved due to the fact that the cleaning module is attached to the screen.
Description
Technical Field
The invention relates to the technical field of TFT liquid crystal display screens, in particular to a handwriting device based on a TFT liquid crystal display screen and a using method thereof.
Background
TFT liquid crystal displays are thin film transistor type liquid crystal displays, i.e., "true color" (TFT). The TFT liquid crystal is provided with a semiconductor switch for each pixel, and each pixel can be directly controlled by a point pulse, so that each node is relatively independent and can be continuously controlled, the response speed of the display screen is improved, and the display color level can be accurately controlled, so that the color of the TFT liquid crystal is more true.
Current TFT liquid crystal display's handwriting device, because when using TFT liquid crystal display handwriting panel under different environment, can cause and to drip the rainwater or fall the dust on the touch-sensitive screen, can cause the insensitive phenomenon of handwritten screen response, and then need clear up the touch-sensitive screen, nevertheless because do not have fine cleaning device when the butt joint touch screen is cleared up, carry out simple cleaning to its surface through the towel, can remain certain water stain, inconvenient handwriting device to TFT liquid crystal display carries out normal use, and then influence TFT liquid crystal display and use.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a handwriting device based on a TFT liquid crystal display screen and a using method thereof, and solves the problems mentioned in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a handwriting device based on TFT liquid crystal display, includes touch-sensitive screen and display screen frame, be provided with drive mechanism in the display screen frame, drive mechanism's top is provided with follower, follower's left side is provided with the connecting rod, the left end of connecting rod is fixed with the fixing base, the inner wall left side of fixing base is fixed with first spring, the right side of first spring is fixed with the fixed plate, the right side of fixed plate is fixed with clean module, clean module runs through the right side of fixing base, the upper surface of fixed plate is provided with stop gear, fixed surface has the dead lever on the fixed plate, the top of dead lever is fixed with the slider, the slider can be at the upper surface horizontal slip of fixing base.
Preferably, the transmission mechanism comprises a second spring, a first fixed block is fixed at the bottom of the second spring, a pull rod is fixed on the inner wall of the first fixed block, a first pull ring is fixed at the top of the pull rod, a slide rod is fixed on the left side of the pull rod, a cylinder is arranged on the left side of the slide rod, and a sliding groove for the slide rod to slide up and down is formed in the surface of the cylinder.
Preferably, the follower includes first bull stick, the outer wall of first bull stick is fixed with rotatable first drive wheel, around being equipped with the drive belt on the first drive wheel, the top of drive belt is around establishing on the second drive wheel, the inner wall on the second drive wheel is fixed with rotatable second bull stick, the outer wall of drive belt is fixed with fixed cover.
Preferably, the limiting mechanism comprises a third spring, a second fixing block is fixed at the bottom of the third spring, a limiting rod is fixed on the inner wall of the second fixing block, and a second pull ring is fixed at the top of the limiting rod.
Preferably, the upper surface of the fixing plate is provided with a groove, and the size of the groove is matched with the size of the bottom of the limiting rod.
Preferably, a slidable support rod is fixed at the bottom of the inner wall of the fixed seat, and the top of the support rod is fixed at the bottom of the fixed plate.
Preferably, the right side of the sliding block is provided with an inclined surface.
Preferably, a pressing rod is fixed on the left side of the display screen frame.
Preferably, the left side of the display screen frame is provided with a slotted hole, and the connecting rod can move in the slotted hole.
The invention provides a use method of a handwriting device based on a TFT liquid crystal display screen, which comprises the following steps:
And 4, when the screen is cleaned again, pulling the second pull ring to enable the cleaning module to be attached to the touch screen.
(III) advantageous effects
The invention provides a handwriting device based on a TFT liquid crystal display screen and a using method thereof. The method has the following beneficial effects:
(1) when the touch screen is cleaned, the cleaning module moves upwards through the cooperation of the transmission mechanism, the driven mechanism and the connecting rod, and the cleaning module is attached to the screen, so that the effect of removing dirt on the screen is achieved.
(2) This handwriting device based on TFT liquid crystal display and application method thereof, when cleaning module is moving a certain position, can make the extrusion stem extrusion slider remove left, and then through stop gear, first spring, the fixed plate, the cooperation of recess makes cleaning module stretch into in the fixing base, when making cleaning module return, prevent taking the screen dirty, and also played when not using cleaning module, make cleaning module fix in the fixing base, prevent that cleaning module exposes the effect of making dirty easily in the outside.
Drawings
FIG. 1 is a schematic top view of an integrated apparatus according to the present invention;
FIG. 2 is a schematic side view of an integrated device according to the present invention;
FIG. 3 is an enlarged view of the structure A of the present invention;
FIG. 4 is an enlarged view of the structure B of the present invention;
FIG. 5 is an enlarged view of the structure C of the present invention;
fig. 6 is a schematic front view of the overall device of the present invention.
In the figure: 1 touch screen, 2 display screen frame, 3 transmission mechanism, 31 second spring, 32 first fixed block, 33 pull rod, 34 first pull ring, 35 slide rod, 36 cylinder, 37 chute, 4 follower mechanism, 41 first rotating rod, 42 first transmission wheel, 43 transmission belt, 44 second transmission wheel, 45 second rotating rod, 46 fixed sleeve, 5 connecting rod, 6 fixed seat, 7 first spring, 8 fixed plate, 9 cleaning module, 10 fixed rod, 11 slide block, 12 spacing mechanism, 121 third spring, 122 second fixed block, 123 spacing rod, 124 second pull ring, 13 supporting rod, 14 groove, 15 slotted hole, 16 extrusion rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a handwriting device based on TFT liquid crystal display, including touch-sensitive screen 1 and display screen frame 2, be provided with drive mechanism 3 in the display screen frame 2, drive mechanism 3 includes second spring 31, the bottom of second spring 31 is fixed with first fixed block 32, the inner wall of first fixed block 32 is fixed with pull rod 33, the top of pull rod 33 is fixed with first pull ring 34, the left side of pull rod 33 is fixed with slide bar 35, the left side of slide bar 35 is provided with drum 36, drum 36 sets up on the surface and can supply slide bar 35 gliding spout 37 from top to bottom, through the first pull ring 34 of pulling, and then can stimulate pull rod 33 and move upwards, pull rod 33 moves upwards and can drive slide bar 35 and move upwards, make slide bar 35 slide in spout 37, and then make drum 36 clockwise rotation.
In this embodiment, a driven mechanism 4 is disposed on the top of the driving mechanism 3, the driven mechanism 4 includes a first rotating rod 41, a first rotatable driving wheel 42 is fixed on the outer wall of the first rotating rod 41, a driving belt 43 is wound on the first driving wheel 42, the top end of the driving belt 43 is wound on a second driving wheel 44, a second rotatable rotating rod 45 is fixed on the inner wall of the second driving wheel 44, a fixing sleeve 46 is fixed on the outer wall of the driving belt 43, when the cylinder 36 rotates clockwise, the first rotating rod 41 can be driven to rotate clockwise, the first rotating rod 41 can control the first driving wheel 42 to rotate clockwise by rotating clockwise, the driving belt 43 is wound on the first driving wheel 42 and the second driving wheel 44, and further the driving belt 43 can be controlled to move upward, the driving sleeve 46 is controlled by the driving belt 43 to move upward, a connecting rod 5 is disposed on the left side of the driven mechanism 4, a slot, the connecting rod 5 is movable in the slot 15.
In this embodiment, a fixing base 6 is fixed at the left end of a connecting rod 5, a first spring 7 is fixed at the left side of the inner wall of the fixing base 6, the first spring 7 can press a fixing plate 8 and further press a cleaning module 9, so that the cleaning module 9 presses a touch screen 1, and the cleaning module 9 is always tightly attached to the touch screen 1 when moving on the touch screen 1, a fixing plate 8 is fixed at the right side of the first spring 7, a groove 14 is formed in the upper surface of the fixing plate 8, the size of the groove 14 is matched with the size of the bottom of a limiting rod 123, the groove 14 can be clamped with the limiting rod 123, the cleaning module 9 is fixed at the right side of the fixing plate 8, the cleaning module 9 can clean the touch screen 1, the cleaning module 9 penetrates through the right side of the fixing base 6, a slidable supporting rod 13 is fixed at the bottom of the inner wall of the fixing base 6, the top of the supporting rod 13 is fixed at, the fixing plate 8 is prevented from tilting while moving.
In this embodiment, the upper surface of the fixing plate 8 is provided with the limiting mechanism 12, the limiting mechanism 12 includes a third spring 121, the bottom of the third spring 121 is fixed with a second fixing block 122, the inner wall of the second fixing block 122 is fixed with a limiting rod 123, the top of the limiting rod 123 is fixed with a second pull ring 124, the upper surface of the fixing plate 8 is fixed with a fixing rod 10, the top of the fixing rod 10 is fixed with a slider 11, the slider 11 can slide left and right on the upper surface of the fixing base 6, the right side of the slider 11 is provided with an inclined plane, the left side of the display screen frame 2 is fixed with the extrusion rod 14, and the extrusion rod 16 can extrude the slider 11 to move left.
A use method of a handwriting device based on a TFT liquid crystal display screen comprises the following steps:
When the cleaning device works (or is used), the pull rod 33 can be pulled to move upwards by pulling the first pull ring 34, the pull rod 33 can move upwards to drive the slide rod 35 to move upwards, the slide rod 35 slides in the chute 37, and the cylinder 36 rotates clockwise, when the cylinder 36 rotates clockwise, the first rotating rod 41 can be driven to rotate clockwise, the first rotating rod 41 can rotate clockwise to control the first driving wheel 42 to rotate clockwise, the driving belt 43 is wound on the first driving wheel 42 and the second driving wheel 44 to control the driving belt 43 to move upwards, the driving belt 43 controls the fixing sleeve 46 to move upwards, when the fixing sleeve 46 moves upwards, the connecting rod 5 can be driven to move upwards in the chute hole 15, and further the fixing seat 6 can be controlled to move upwards to drive the cleaning module 9 to move upwards against the touch screen 1, so that the touch screen 1 can be cleaned, when the fixing seat 6 moves to a certain position, the sliding block 11 can be made to extrude the extrusion rod 16, the first spring 7 can be compressed, the sliding block 11 can be made to move leftwards to control the fixing rod 10 to move leftwards, and further the fixing plate 8 can be controlled to move leftwards, the cleaning module 9 can be retracted into the fixing base 6, the cleaning module 9 can not be attached to the screen, when the fixing plate 8 moves leftwards, when the groove 14 is aligned with the bottom of the limiting rod 123, the groove 14 is clamped with the limiting rod 123 because the third spring 121 is in a compressed state, the cleaning module 9 can be fixed in the fixing base 6, and further when the first pull ring 34 is released, the cleaning module can not be attached to the touch screen when returning to the original position, so that the dirt can not be brought onto the screen, and the cleaning module 9 can be fixed in the fixing base 6 when the cleaning module 9 is not used, the cleaning module 9 can be prevented from being exposed outside and, the limiting rod 123 is controlled to move upwards, so that the limiting rod 123 is separated from the groove 14, and the cleaning module 9 extends out of the fixing seat 6 because the first spring 121 is in a compressed state, so that the cleaning module 9 is abutted against the touch screen 1.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (10)
1. A handwriting device based on a TFT liquid crystal display screen comprises a touch screen (1) and a display screen frame (2), and is characterized in that: a transmission mechanism (3) is arranged in the display screen frame (2), a driven mechanism (4) is arranged at the top of the transmission mechanism (3), a connecting rod (5) is arranged at the left side of the driven mechanism (4), a fixed seat (6) is fixed at the left end of the connecting rod (5), a first spring (7) is fixed on the left side of the inner wall of the fixed seat (6), a fixed plate (8) is fixed on the right side of the first spring (7), a cleaning module (9) is fixed on the right side of the fixed plate (8), the cleaning module (9) penetrates through the right side of the fixed seat (6), the upper surface of the fixed plate (8) is provided with a limiting mechanism (12), the upper surface of the fixed plate (8) is fixed with a fixed rod (10), the top of the fixed rod (10) is fixed with a sliding block (11), and the sliding block (11) can slide left and right on the upper surface of the fixed seat (6).
2. The TFT liquid crystal display-based handwriting device according to claim 1, wherein: drive mechanism (3) include second spring (31), the bottom of second spring (31) is fixed with first fixed block (32), the inner wall of first fixed block (32) is fixed with pull rod (33), the top of pull rod (33) is fixed with first pull ring (34), the left side of pull rod (33) is fixed with slide bar (35), the left side of slide bar (35) is provided with drum (36), the gliding spout (37) about can supplying slide bar (35) are seted up on the surface of drum (36).
3. The TFT liquid crystal display-based handwriting device according to claim 1, wherein: driven mechanism (4) include first bull stick (41), the outer wall of first bull stick (41) is fixed with rotatable first drive wheel (42), around being equipped with drive belt (43) on first drive wheel (42), the top of drive belt (43) is around establishing on second drive wheel (44), inner wall on second drive wheel (44) is fixed with rotatable second bull stick (45), the outer wall of drive belt (43) is fixed with fixed cover (46).
4. The TFT liquid crystal display-based handwriting device according to claim 1, wherein: the limiting mechanism (12) comprises a third spring (121), a second fixing block (122) is fixed to the bottom of the third spring (121), a limiting rod (123) is fixed to the inner wall of the second fixing block (122), and a second pull ring (124) is fixed to the top of the limiting rod (123).
5. The TFT liquid crystal display-based handwriting device according to claim 1, wherein: the upper surface of the fixing plate (8) is provided with a groove (14), and the size of the groove (14) is matched with the size of the bottom of the limiting rod (123).
6. The TFT liquid crystal display-based handwriting device according to claim 1, wherein: the bottom of the inner wall of the fixed seat (6) is fixed with a slidable support rod (13), and the top of the support rod (13) is fixed at the bottom of the fixed plate (8).
7. The TFT liquid crystal display-based handwriting device according to claim 1, wherein: the right side of the sliding block (11) is provided with an inclined plane.
8. The TFT liquid crystal display-based handwriting device according to claim 1, wherein: and a squeezing rod (16) is fixed on the left side of the display screen frame (2).
9. The TFT liquid crystal display-based handwriting device according to claim 1, wherein: a slotted hole (15) is formed in the left side of the display screen frame (2), and the connecting rod (5) can move in the slotted hole (15).
10. A use method of a handwriting device based on a TFT liquid crystal display screen is characterized by comprising the following steps:
step 1, when the screen is kept clean, handwriting work can be normally performed on the touch screen (1);
step 2, when water stains and dust exist on the touch screen (1), the cleaning module (9) is attached to the touch screen (1) to move by pulling the first pull ring (334) to clean the water stains and the dust on the screen, when the dust on the screen is too much attached, some screen cleaning agents can be properly added on the touch screen (1), and the screen is cleaned through the cleaning module (9);
step 3, when the cleaning module (9) returns to the original position, the cleaning module (9) can extend into the fixing seat (6), the cleaning module (9) is not attached to the touch screen (1) when returning to the original position, water stain and dust are prevented from being polluted to the touch screen (1) again in the returning process, and the cleaning module (9) can also be prevented from being exposed outside all the time to cause the cleaning module (9) to be dirty and influence the effect of cleaning the touch screen (1) when extending into the fixing seat (6);
and 4, when the screen is cleaned again, the second pull ring (124) can be pulled, so that the cleaning module (9) is attached to the touch screen (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110351691.XA CN112987376A (en) | 2021-03-31 | 2021-03-31 | Handwriting device based on TFT liquid crystal display screen and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110351691.XA CN112987376A (en) | 2021-03-31 | 2021-03-31 | Handwriting device based on TFT liquid crystal display screen and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112987376A true CN112987376A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110351691.XA Pending CN112987376A (en) | 2021-03-31 | 2021-03-31 | Handwriting device based on TFT liquid crystal display screen and using method thereof |
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| US20020084031A1 (en) * | 2000-12-30 | 2002-07-04 | Doh Yong Il | Apparatus for etching glass substrate in fabrication of LCD |
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| CN210836945U (en) * | 2019-12-28 | 2020-06-23 | 深圳市巴科光电科技股份有限公司 | Outdoor LED display screen with dust removal function |
| CN211488676U (en) * | 2019-11-30 | 2020-09-15 | 南京沃彩电子科技有限公司 | Dustproof device for LED display screen |
| JP2020175365A (en) * | 2019-04-22 | 2020-10-29 | 呉江玲 | Mouse pad cleaning device |
| CN212828150U (en) * | 2020-06-22 | 2021-03-30 | 山东大齐交通科技有限公司 | Vehicle-mounted information display screen |
| CN213069402U (en) * | 2020-06-02 | 2021-04-27 | 深圳市完美显示科技有限公司 | Dustproof liquid crystal display |
-
2021
- 2021-03-31 CN CN202110351691.XA patent/CN112987376A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020084031A1 (en) * | 2000-12-30 | 2002-07-04 | Doh Yong Il | Apparatus for etching glass substrate in fabrication of LCD |
| CN106782074A (en) * | 2016-12-23 | 2017-05-31 | 刘养青 | A kind of electronic information display device for being easy to clean |
| JP2020175365A (en) * | 2019-04-22 | 2020-10-29 | 呉江玲 | Mouse pad cleaning device |
| CN211488676U (en) * | 2019-11-30 | 2020-09-15 | 南京沃彩电子科技有限公司 | Dustproof device for LED display screen |
| CN210836945U (en) * | 2019-12-28 | 2020-06-23 | 深圳市巴科光电科技股份有限公司 | Outdoor LED display screen with dust removal function |
| CN213069402U (en) * | 2020-06-02 | 2021-04-27 | 深圳市完美显示科技有限公司 | Dustproof liquid crystal display |
| CN212828150U (en) * | 2020-06-22 | 2021-03-30 | 山东大齐交通科技有限公司 | Vehicle-mounted information display screen |
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Application publication date: 20210618 |