CN109238388B - LCD display of gas meter - Google Patents
LCD display of gas meter Download PDFInfo
- Publication number
- CN109238388B CN109238388B CN201811107945.8A CN201811107945A CN109238388B CN 109238388 B CN109238388 B CN 109238388B CN 201811107945 A CN201811107945 A CN 201811107945A CN 109238388 B CN109238388 B CN 109238388B
- Authority
- CN
- China
- Prior art keywords
- plate
- light
- display
- strips
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 230000005855 radiation Effects 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
-
- 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
-
- 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
Abstract
The invention discloses a gas meter LCD display, which comprises a bottom plate, a connecting plate, an outer frame, fluorescent strips, a display, connecting strips, a connecting seat, a wiring row, a connecting groove, connecting contacts, sealing strips, a heat radiation opening, a connecting opening, a lower substrate, a backlight source, a light-transmitting plate, a light-transmitting opening, a liquid crystal layer, an upper substrate and connecting through holes. The beneficial effects of the invention are as follows: the connecting plate can be freely inserted in the connecting seat and the connecting strips and the connecting contacts are in contact, so that the whole display can be freely detached from the connecting seat, maintenance and repair are convenient, the connecting strips are provided with two rows and are connected through connecting through holes penetrating through the connecting plate, the connecting contacts are also arranged in two rows corresponding to the connecting plate, the two groups of connecting strips and the connecting contacts are always connected together, the sealing strip is provided with a certain elasticity, the middle part of the sealing strip is provided with a transverse notch, the sealing strip can be clung to the connecting plate after the connecting plate is inserted into the connecting seat, and the sealing property inside the connecting seat is ensured.
Description
Technical Field
The invention relates to a gas meter display, in particular to a gas meter LCD display, and belongs to the field of liquid crystal display equipment.
Background
The fuel used for people's daily cooking has been changed from resources such as firewood, coal, etc. waste seriously, pollution serious conventional energy to use clean energy such as natural gas and coal gas, even electricity, etc. it has been played its effect to this gas table, have its automatic accumulation function, make those who use natural gas or pipeline coal gas family, can know how much gas has been used conveniently, so as to pay according to the cubic meter number of consumed gas per month, the counting assembly of the existing gas table is roller type counter, work to the outside by the pressure of gas, promote the roller counter count, when this counting display device carries and must drive the high-order wheel at the same time, need to overcome very big frictional resistance, very easily produce the inaccurate condition of count, and when the gear friction number of adjacent digit is too big, very easily cause display device to damage, and the gas table is mostly installed in some unobtrusive places, and these places are usually poor in light, very difficult to find the position of table when looking over.
Disclosure of Invention
The invention aims to solve the problems and provide a gas meter LCD display.
The invention realizes the above purpose through the following technical scheme: the LCD display of the gas meter comprises a bottom plate, a connecting plate, an outer frame, a fluorescent strip, a display, a connecting strip, a connecting seat, a wiring row, a connecting groove, a connecting contact, a sealing strip, a heat radiation port, a connecting port, a lower substrate, a backlight source, a light-transmitting plate, a light-transmitting port, a liquid crystal layer, an upper substrate and a connecting via hole; the bottom plate is connected with the connecting plate, an outer frame is fixed at the upper end of the bottom plate, a circle of fluorescent strips capable of emitting fluorescence is arranged at the inner frame close to the display, the display is arranged in the outer frame, a connecting port is arranged on one side of the bottom plate close to the connecting plate, the connecting strips are fixed on the upper surface and the lower surface of the connecting plate, the connecting strips at the upper end of the connecting plate penetrate through the connecting port and are connected with the display, the connecting strips at the upper end and the lower end of the connecting plate are connected through connecting through holes, two rows of connecting strips are connected through the connecting through holes penetrating through the connecting plate and are also two rows corresponding to the connecting plate, the connecting contacts are in a semi-cylindrical structure, hollow connecting grooves are arranged on the connecting seat, connecting contacts are fixed on the upper surface and the lower surface of the inner part of the connecting groove, the notch of the connecting groove is fixed with a sealing strip, the sealing strip has certain elasticity, the middle part of the sealing strip is provided with a transverse notch, the connecting plate can be freely inserted into the connecting seat and enables the connecting strip to be contacted with the connecting contact, the wiring row is fixed on the connecting seat and is positioned at the outer end of the connecting seat, the wiring row is connected with the connecting contact in the connecting groove, the back of the bottom plate is uniformly provided with a plurality of heat dissipation openings penetrating through the bottom plate, the display consists of a lower substrate, a backlight source, a light transmission plate, a light transmission opening, a liquid crystal layer and an upper substrate, the backlight source is arranged on the lower substrate, the light transmission plate is attached to the upper end face of the backlight source, the light transmission plate is uniformly provided with a plurality of light transmission openings, and the light transmission plate has certain light reflection capacity at the lower end face close to the backlight source, the upper substrate and the light-transmitting plate are sandwiched by a liquid crystal layer.
In order to enable the whole display to be freely detached from the connecting seat for convenient maintenance, repair and replacement, the connecting plate can be freely inserted into the connecting seat and enables the connecting strip to be contacted with the connecting contact.
In order to make the connection effect of connecting strip and connecting seat better, the connecting strip has two rows and is connected through the connection via hole that runs through the connecting plate and the connection contact is also two rows corresponding to the connecting plate.
Furthermore, in order to make the inside dust and the water stain that is difficult to get into of connecting seat, the sealing strip has certain elasticity and sealing strip middle part is provided with a horizontal breach.
Furthermore, in order to radiate heat generated during the use of the display, the back surface of the bottom plate is uniformly provided with a plurality of heat radiating openings penetrating through the bottom plate.
Further, in order to facilitate people to check the position of the gas meter when the light is poor, the outer frame is provided with a circle of fluorescent strips which can emit fluorescence at the inner frame close to the display.
Further, in order to improve the working efficiency of the backlight source and reduce the power consumption at the same time, the light-transmitting plate is uniformly provided with a plurality of light-transmitting openings, and the light-transmitting plate has certain light-reflecting capacity at the lower end face close to the backlight source.
Further, in order to make the connection strip and the connection contact fit more tightly and make the contact surface larger when being connected, the shape of the connection contact is a semi-cylindrical structure.
The beneficial effects of the invention are as follows: the display has compact structure, simple use and reasonable design, the connecting plate can be freely inserted in the connecting seat, and the connecting strips and the connecting contacts are contacted, so that the whole display can be freely detached and installed from the connecting seat, thereby being convenient for maintenance and repair and replacement, the connecting strips are provided with two rows and are connected through the connecting through holes penetrating the connecting plate, the connecting contacts are also provided with two rows corresponding to the connecting plate, the two groups of connecting strips and the connecting contacts are always connected together, thereby ensuring that the connecting effect of the connecting strips and the connecting seat is better, the sealing strip has certain elasticity, the middle part of the sealing strip is provided with a transverse notch, the sealing strip can be clung to the connecting plate after the connecting plate is inserted into the connecting seat, the sealing property inside the connecting seat is ensured, dust and water stains are not easy to enter the connecting seat, the back surface of the bottom plate is uniformly provided with a plurality of radiating ports penetrating the bottom plate, the display can be protected by radiating heat generated when in use, the service life of the display is prolonged, a circle of fluorescent strips capable of radiating fluorescence is arranged at the inner frame part of the outer frame, which is close to the display, and weak fluorescence can be radiated when light is bad, so that people can conveniently check the position of the gas meter when light is bad, a plurality of light-transmitting holes are uniformly arranged on the light-transmitting plate, the light-transmitting plate has certain light reflecting capacity at the lower end face, which is close to the backlight source, of the light-transmitting holes, the light transmitted by the light-transmitting holes can ensure the actual effect of the whole display, the light irradiated to the non-light-transmitting area can be reflected back to the backlight source for re-reflection use, the working efficiency of the backlight source is improved, the power consumption is reduced, the shape of the connecting contact is a semi-cylindrical structure, the connecting strips and the connecting contact are attached more tightly when being connected, and the contact surface is larger, ensuring the connection effect.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the connecting seat according to the present invention;
FIG. 3 is a schematic view of the back structure of the base plate of the present invention;
FIG. 4 is an exploded view of the display according to the present invention;
FIG. 5 is a schematic diagram of a via structure of the present invention;
FIG. 6 is a schematic view of a light-transmitting opening according to the present invention;
FIG. 7 is a schematic diagram of the overall structure of the present invention;
in the figure: 1. the LED display comprises a bottom plate, 2, a connecting plate, 3, an outer frame, 4, fluorescent strips, 5, a display, 6, connecting strips, 7, a connecting seat, 8, a wiring row, 9, a connecting groove, 10, a connecting contact, 11, a sealing strip, 12, a heat dissipation port, 13, a connecting port, 14, a lower substrate, 15, a backlight source, 16, a light-transmitting plate, 17, a light-transmitting port, 18, a liquid crystal layer, 19, an upper substrate, 20 and a connecting via hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, a gas meter LCD display includes a bottom plate 1, a connecting plate 2, an outer frame 3, a fluorescent strip 4, a display 5, a connecting strip 6, a connecting seat 7, a wiring row 8, a connecting groove 9, a connecting contact 10, a sealing strip 11, a heat dissipation port 12, a connecting port 13, a lower substrate 14, a backlight 15, a light transmission plate 16, a light transmission port 17, a liquid crystal layer 18, an upper substrate 19 and a connecting via 20; the bottom plate 1 is connected with the connecting plate 2, an outer frame 3 is fixed at the upper end of the bottom plate 1, a circle of fluorescent strips 4 capable of emitting fluorescence are arranged at the inner frame position close to the display 5 of the outer frame 3, the display 5 is arranged in the outer frame 3, a connecting port 13 is arranged on one side close to the connecting plate 2 of the bottom plate 1, connecting strips 6 are fixed on the upper surface and the lower surface of the connecting plate 2, connecting strips 6 at the upper end of the connecting plate 2 penetrate through the connecting port 13 and are connected with the display 5, connecting strips 6 at the upper end and the lower end of the connecting plate 2 are connected through connecting through holes 20, two rows of connecting strips 6 are connected through connecting through holes 20 penetrating through the connecting plate 2, connecting contacts 10 are also arranged in two rows corresponding to the connecting plate 2, the shape of the connecting contacts 10 is a semi-cylindrical structure, hollow connecting grooves 9 are arranged on the connecting seat 7, the connecting contacts 10 are fixed on the upper and lower surfaces of the inside of the connecting groove 9, the notch of the connecting groove 9 is fixed with a sealing strip 11, the sealing strip 11 has certain elasticity, the middle part of the sealing strip 11 is provided with a transverse notch, the connecting plate 2 can be freely inserted into the connecting seat 7 and enables the connecting strip 6 to contact with the connecting contacts 10, the wiring row 8 is fixed on the connecting seat 7 and is positioned at the outer end of the connecting seat 7, the wiring row 8 and the connecting contacts 10 in the connecting groove 9 are connected together, the back surface of the bottom plate 1 is uniformly provided with a plurality of heat dissipation openings 12 penetrating through the bottom plate 1, the display 5 consists of a lower base plate 14, a backlight source 15, a light transmission plate 16, a light transmission opening 17, a liquid crystal layer 18 and an upper base plate 19, the backlight source 15 is arranged on the upper surface of the lower base plate 14, the light transmission plate 16 is attached to the upper end surface of the backlight source 15, the light-transmitting plate 16 is uniformly provided with a plurality of light-transmitting openings 17, the light-transmitting plate 16 has a certain light-reflecting capacity near the lower end face of the backlight 15, and the upper substrate 19 and the light-transmitting plate 16 are sandwiched by the liquid crystal layer 18.
As a technical optimization scheme of the invention: the connecting plate 2 can be freely inserted into the connecting seat 7 and enables the connecting strip 6 to be contacted with the connecting contact 10; the connecting strips 6 are provided with two rows and are connected through connecting through holes 20 penetrating through the connecting plate 2, and the connecting contacts 10 are also provided with two rows corresponding to the connecting plate 2; the sealing strip 11 has certain elasticity, and a transverse notch is arranged in the middle of the sealing strip 11; the back of the bottom plate 1 is uniformly provided with a plurality of heat dissipation ports 12 penetrating through the bottom plate 1; the outer frame 3 is provided with a circle of fluorescent strips 4 which can emit fluorescence at the inner frame close to the display 5; a plurality of light transmission openings 17 are uniformly formed in the light transmission plate 16, and the light transmission plate 16 has certain light reflection capability near the lower end face of the backlight source 15; the shape of the connection contact 10 is a semi-cylindrical structure.
When the invention is used, the wiring board on the connecting seat is firstly inserted on the integrated circuit board to be installed, the wiring board is inserted in the bonding pad hole and then welded, the connecting plate is inserted in the connecting groove of the connecting seat, if the display is damaged or needs to be overhauled and replaced, the original display is directly pulled out, and then a new connecting plate is inserted in the connecting seat, after the whole gas meter is installed and used, when the gas is searched, if the light is not good, only the light emitted by the fluorescent strip is needed to be searched.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. A gas meter LCD display, characterized by: the LED display device comprises a bottom plate (1), a connecting plate (2), an outer frame (3), fluorescent strips (4), a display (5), connecting strips (6), connecting seats (7), wiring rows (8), connecting grooves (9), connecting contacts (10), sealing strips (11), heat dissipation ports (12), connecting ports (13), a lower substrate (14), a backlight source (15), a light-transmitting plate (16), light-transmitting ports (17), a liquid crystal layer (18), an upper substrate (19) and connecting through holes (20); the utility model discloses a heat radiation device, including bottom plate (1), connecting plate (2), fluorescent strip (4) are installed on frame (3), the internally mounted of frame (3) has display (5), bottom plate (1) is provided with connector (13) on one side that is close to connecting plate (2), connecting strip (6) are fixed on the upper and lower two sides of connecting plate (2), connecting strip (6) of connecting plate (2) upper end pass connector (13) and display (5) and are connected, connecting strip (6) on connecting plate (2) upper and lower both ends are connected through connecting via hole (20), connecting groove (9) that are provided with the fretwork on connecting seat (7), connecting contact (10) are all fixed with on the upper and lower both sides of connecting groove (9) inside, notch fixedly have sealing strip (11) of connecting groove (9), connecting strip (8) are fixed on connecting seat (7) and are located connecting plate (7) outer connecting strip (6) and display (5), connecting strip (6) are connected by connecting groove (9) and connecting plate (14) are connected together, connecting plate (1) are connected by connecting groove (14) and bottom plate (1) The backlight module comprises a backlight source (15), a light-transmitting plate (16), a light-transmitting opening (17), a liquid crystal layer (18) and an upper substrate (19), wherein the backlight source (15) is arranged on the lower substrate (14), the light-transmitting plate (16) is attached to the upper end face of the backlight source (15), the light-transmitting opening (17) is arranged on the surface of the light-transmitting plate (16), and the liquid crystal layer (18) is clamped between the upper substrate (19) and the light-transmitting plate (16);
the connecting plate (2) can be freely inserted into the connecting seat (7) and enables the connecting strip (6) to be in contact with the connecting contact (10);
the connecting strips (6) are provided with two rows and are connected through connecting through holes (20) penetrating through the connecting plate (2), and the connecting contacts (10) are also provided with two rows corresponding to the connecting plate (2).
2. The gas meter LCD display of claim 1, wherein: the sealing strip (11) has certain elasticity, and a transverse notch is arranged in the middle of the sealing strip (11).
3. The gas meter LCD display of claim 1, wherein: the back of the bottom plate (1) is uniformly provided with a plurality of heat dissipation ports (12) penetrating through the bottom plate (1).
4. The gas meter LCD display of claim 1, wherein: the outer frame (3) is provided with a circle of fluorescent strips (4) which can emit fluorescence at the inner frame close to the display (5).
5. The gas meter LCD display of claim 1, wherein: a plurality of light transmission openings (17) are uniformly formed in the light transmission plate (16), and the light transmission plate (16) has certain light reflection capacity at the lower end face close to the backlight source (15).
6. The gas meter LCD display of claim 1, wherein: the shape of the connecting contact (10) is a semi-cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107945.8A CN109238388B (en) | 2018-09-21 | 2018-09-21 | LCD display of gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107945.8A CN109238388B (en) | 2018-09-21 | 2018-09-21 | LCD display of gas meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109238388A CN109238388A (en) | 2019-01-18 |
| CN109238388B true CN109238388B (en) | 2024-01-05 |
Family
ID=65056634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811107945.8A Active CN109238388B (en) | 2018-09-21 | 2018-09-21 | LCD display of gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109238388B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430844A (en) * | 2007-11-06 | 2009-05-13 | 株式会社山武 | Display apparatus |
| CN101479653A (en) * | 2006-06-28 | 2009-07-08 | 汤姆逊许可证公司 | Liquid crystal display having a field emission backlight |
| CN202042162U (en) * | 2011-02-16 | 2011-11-16 | 苏州仪峰仪器有限公司 | Backlight display device of IC (integrated circuit) card fuel controller |
| CN202677737U (en) * | 2012-04-27 | 2013-01-16 | 天津三星电子有限公司 | Electronic display device |
| CN208902199U (en) * | 2018-09-21 | 2019-05-24 | 新开普电子股份有限公司 | A kind of gas meter, flow meter LCD display |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050157521A1 (en) * | 2004-01-20 | 2005-07-21 | Shih-Hsien Chen | Backlight assembly for liquid crystal display |
| CA2796519A1 (en) * | 2010-04-16 | 2011-10-20 | Flex Lighting Ii, Llc | Illumination device comprising a film-based lightguide |
-
2018
- 2018-09-21 CN CN201811107945.8A patent/CN109238388B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101479653A (en) * | 2006-06-28 | 2009-07-08 | 汤姆逊许可证公司 | Liquid crystal display having a field emission backlight |
| CN101430844A (en) * | 2007-11-06 | 2009-05-13 | 株式会社山武 | Display apparatus |
| CN202042162U (en) * | 2011-02-16 | 2011-11-16 | 苏州仪峰仪器有限公司 | Backlight display device of IC (integrated circuit) card fuel controller |
| CN202677737U (en) * | 2012-04-27 | 2013-01-16 | 天津三星电子有限公司 | Electronic display device |
| CN208902199U (en) * | 2018-09-21 | 2019-05-24 | 新开普电子股份有限公司 | A kind of gas meter, flow meter LCD display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109238388A (en) | 2019-01-18 |
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