CN101364362A - Floor indicator for elevator - Google Patents
Floor indicator for elevator Download PDFInfo
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- CN101364362A CN101364362A CNA2008101449099A CN200810144909A CN101364362A CN 101364362 A CN101364362 A CN 101364362A CN A2008101449099 A CNA2008101449099 A CN A2008101449099A CN 200810144909 A CN200810144909 A CN 200810144909A CN 101364362 A CN101364362 A CN 101364362A
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Abstract
The present invention provides a floor number display apparatus (30) of elevator for displaying present floor number of the car (32) of elevator with segmenting word, comprising a case type housing (3) forming segmenting window (2), opening on reverse side, with segmenting shapes composing segmenting character, a substrate (9) arranged on opening on reverse side of the case type housing, connecting with multiple display signal wires on reverse side, arranging a plurality of connection base pins (8) for conduction conducting with each display signal wires equipped on each positions opposite to each segmenting windows on internal surface; and a plurality of LED display units (34) arranged on each connection base pins (8) of the substrate with rubber terminal bodies (35) for incandescent lamp in freely mounting or dismounting manner, LED elements (39) are assembled inside, and the display units are opposite with the segmenting windows (2) in state of being arranged on the connection base pins (8).
Description
Technical field
The present invention relates to be installed in the elevator hall and car of each floor of buildings, be presented at the floor display of the elevator of the current floor that is positioned at of car that moves up and down in the elevating road, particularly can be simply be transformed into LED (Light Emitting Diode: the floor display of the elevator of display mode light emitting diode) from the floor display of the incandescent lamp display mode of having established by the segmentation character.
Background technology
In near the door of the elevator hall of each floor of buildings wall, the car of elevator, the floor display of the current location (current floor) that is presented at the car that moves up and down in the elevating road is installed.
Figure 10 is the outside drawing of floor display 1, and Figure 11 is the exploded perspective view of floor display 1.As shown in figure 11, this floor display 1 is dividing haply, comprising: be formed with the box shell 3 of segmentation window 2 in front, described segmentation window 2 has the shape of each segmentation that constitutes the segmentation character; Determine the color filter 4 of the Show Color of shown segmentation character; Light spacer body 5; With 7 corresponding 7 incandescent lamps 6 of segmentation; Substrate 9, it is connected with display signal line 7 on overleaf, on inner face everybody relative with each segmentation window 2 install with 7 conductings of each display signal line be connected pin 8; With the fixing pin 10 that box shell 3, color filter 4, light spacer body 5 and substrate 9 are linked.
Figure 12 A～Figure 12 D is that expression is set to and respectively connects pin 8 loading and unloading each incandescent lamp 6 freely with respect to substrate 9.Figure 12 A is the side view of incandescent lamp 6, and Figure 12 B is a front elevation, and Figure 12 C is an elevation view, and Figure 12 D is a circuit diagram.
At this incandescent lamp 6, in the rubber ends daughter 11 that is installed on the connection pin 8, be fixed with the glass bead 13 of taking in filament 14.Be connected on the filament 14 contact 12 when installing be connected pin 8 and contact.Therefore, this incandescent lamp 6 is being installed under the state that connects on the pin 8, will be equiped with connection pin 8 energisings of this incandescent lamp 6 by the shows signal from display signal line 7 inputs the time, this incandescent lamp 6 is lighted.
In order to prevent that each light in 7 incandescent lamps 6 from leaking into other the segmentation window 2 of incandescent lamp 6 beyond self the segmentation window 2, in light spacer body 5, be formed with and be used for the photoconduction of each incandescent lamp 6 self light pipe to the segmentation window 2 of self.Such floor display 1 drives by for example exchanging 24V (volt).
But the life-span of this incandescent lamp 6 is shorter, and the fault generation rate is higher, so the current location of shown car (current floor) suddenly disappears, bring the possibility of very big trouble very big for the user of elevator.
In order to eliminate such problem, in the patent documentation (spy opens the 2000-276069 communique) of Japan, the floor display 1 that has proposed incandescent lamp display mode that the employing shown in Figure 10～Figure 12 D has been established is transformed into the floor display of LED display mode.
In this floor display 15, as shown in figure 13, the light spacer body 5 in the floor display 1 of Figure 11 and 7 incandescent lamps 6 are replaced into LED demonstration recombiner unit 16.Figure 14 A is the cut-open view that this LED shows recombiner unit 16.
In this LED shows recombiner unit 16, be assembled with: with segmentation window 2 the LED substrate 19 shown in Figure 14 B of LED element 18 is installed with matching and diode-bridge circuit 20 that the full-wave rectification in the led drive circuit 24 of each segmentation shown in Figure 15 uses is installed and the resistance substrate 22 of a pair of electric current limiting resistance 21.At this floor display 15, in each segmentation, be equipped with 3 LED elements 18.
On the back side of this resistance substrate 22, be equipped with and can be installed in 77 rubber ends daughters 23 that connect on the pin 8, wherein said 7 connection pins 8 are installed on the substrate 9 of Figure 13.In rubber ends daughter 23, be connected with the led drive circuit 24 of each segmentation shown in Figure 15.LED substrate 19 is linked by guide pin 25 with resistance substrate 22.
In the floor display 15 of such LED display mode, in the time will connecting pin 8 energisings by shows signal from display signal line 7 inputs, the additional voltage that interchange is arranged on the led drive circuit 24 that is connected the section unit shown in Figure 15 in the rubber ends daughter 23, wherein said rubber ends daughter 23 is installed in and connects on the pin 8.This alternating voltage limits lowest high-current values by electric current limiting resistance 21, and then converts direct current to by diode-bridge circuit 20, is supplied to 3 LED elements 18 that are arranged on this segmentation window 2 then.Its result, this segmentation is lighted by LED.
Like this, can be simply the floor display 1 of in the past employing incandescent lamp 6 be transformed into the floor display 15 that adopts the LED display mode.
Yet, in the floor display 15 of Figure 13～shown in Figure 15, also have also should solve below such problem.
That is, each incandescent lamp 6 and the light spacer body 5 in the floor display 1 before transforming need be unloaded from floor display 1, install LED then and show recombiner unit 16.Therefore, it is elongated to transform the fortification time, bring very big inconvenience can for the user of elevator, and the user's of elevator service is descended.And then the workman's who transforms homework burden increases.
In addition, after transformation, under the situation that the brightness of the LED element 18 of specific segmentation descends in 7 segmentations, need to change the LED substrate 19 of whole 21 the LED elements 18 of total that 7 segmentations are installed, so the work of maintenance activity increases.In addition, also consider to change the method that LED shows recombiner unit 16 integral body, but produce the problem that the parts expense increases of changing in this case.
Summary of the invention
The present invention finishes in view of such situation, its purpose is to provide a kind of floor display of elevator, its unreal transformation that imposes the floor display of past employing incandescent lamp fully, when the faults such as filament cut-out of in the past incandescent lamp, by with the identical operation of replacing operation of changing this incandescent lamp, display mode can be transformed into the LED display mode from the incandescent lamp display mode, can shorten significantly and transform the needed time, and then can realize the facilitation of improved maintenance to each section displacing led display unit.
In order to address the above problem, the present invention is a kind of floor display of elevator, is arranged in the ladder riding hall and car of each floor of buildings, shows the current floor that is positioned at of described car by the segmentation character, wherein, comprising:
The box shell, it is formed with the segmentation window of the shape with each segmentation that constitutes described segmentation character, backside openings in front; Substrate, it is connected with many display signal lines on overleaf, installs a plurality of pins that are connected with the energising usefulness of each display signal line conducting everybody relative with each segmentation window on inner face, is installed on the opening at the back side of described box shell; With a plurality of led display units, the rubber ends daughter mounting or dismounting that they are used via incandescent lamp are arranged on respectively connecting on the pin of substrate freely, are assembled with the LED element, and this LED element is switched under the state that is installed on the connection pin.
In the floor display of the elevator that constitutes like this, only with respect to the connection pin of the energising usefulness on the inner face that is arranged on substrate, replace incandescent lamp and be installed in the led display unit that inside is assembled with the LED element and get final product.
Therefore, can be transformed into the LED display mode from the incandescent lamp display mode simply.In addition, led display unit is arranged in each segmentation, thus can in each segmentation, change led display unit, so realize the facilitation of improved maintenance.
In addition, in other technical scheme, with respect to the floor display of the elevator of above-mentioned technical scheme, comprise being accommodated in the box shell, under the state on the opening that substrate is installed in the box shell, will being installed in the light that respectively connects each led display unit on the pin light spacer body to each relative segmentation window guiding.
In addition, in other technical scheme, each led display unit of the floor display of elevator comprises: the rubber ends daughter, and it is installed on the connection pin that is installed on the substrate; Rectifier, it is by the diode-bridge circuit that carries out rectification via the shows signal of display signal line, connection pin and rubber ends daughter input is constituted; A pair of electric current limiting resistance, it is installed between rubber ends daughter and the rectifier; The LED element, it is by luminous by the direct current of rectifier rectification; Diffusing lens, it makes the light diffusion of being sent by the LED element; With the display unit shell, its part with the rubber ends daughter, a pair of electric current limiting resistance, rectifier, LED element and diffusing lens cover jointly.
In general, the LED element is compared with the incandescent lamp that is assembled with filament, with little electric current, miniwatt and must be with direct drive, so in each led display unit, except the LED element, also be assembled with rectifier, electric current limiting resistance.And then, be assembled with the light that is used to make the LED element diffusing lens to the whole diffusion of segmentation.
In addition, in other technical scheme, each diode that constitutes the diode-bridge circuit of rectifier is made of the LED element; The light diffusion that diffusing lens makes the light that sent by the LED element that is connected on this diode-bridge circuit that is made of the LED element and sent by each LED element of described diode-bridge circuit.
Like this, by the diode that adopts the LED element to use, can increase from the light quantity of this led display unit output as rectification.
And then, in other technical scheme, can be AC signal or the direct current signal any one from the shows signal of display signal line input.In addition, the diode-bridge circuit and the LED element of formation rectifier are assembled on the semiconductor element.
In the present invention, only with respect to the connection pin of the energising usefulness on the inner face that is arranged on substrate, replace incandescent lamp and be installed in the led display unit that inside is assembled with the LED element and get final product.Therefore, can be transformed into the LED display mode from the incandescent lamp display mode simply.In addition, in each segmentation, change led display unit, so realize the facilitation of improved maintenance.
Description of drawings
Figure 1A is the figure of elevator hall that expression is equipped with the floor display of the related elevator of the 1st embodiment of the present invention.
Figure 1B is the figure of inside of the car of expression floor display that this embodiment is installed.
Fig. 2 is the outside drawing of the floor display of this embodiment.
Fig. 3 is the exploded perspective view of the floor display of this embodiment.
Fig. 4 A is the side view that expression is assembled in the led display unit on the floor display of this embodiment.
Fig. 4 B is the front elevation of this led display unit.
Fig. 4 C is the elevation view of this led display unit.
Fig. 5 is the broken section elevation view of the inner structure of this led display unit of expression.
Fig. 6 is the circuit diagram that expression is arranged on the led drive circuit in this led display unit.
Fig. 7 is the circuit diagram of the led drive circuit in the led display unit of representing to be arranged in the floor display that is assembled in the related elevator of the 2nd embodiment of the present invention.
Fig. 8 A is the side view of the led display unit of this embodiment.
Fig. 8 B is the broken section elevation view of the inner structure of this led display unit of expression.
Fig. 9 is the mode chart of variation of led display unit of the floor display of expression elevator of the present invention.
Figure 10 is the outside drawing of the floor display before transforming.
Figure 11 is the exploded perspective view of the floor display before transforming.
Figure 12 A is the side view that is assembled in the incandescent lamp on the preceding floor display of this transformation.
Figure 12 B is the front elevation of this incandescent lamp.
Figure 12 C is the elevation view of this incandescent lamp.
Figure 12 D is the circuit diagram of this incandescent lamp.
Figure 13 is the exploded perspective view of improved floor display in the past.
Figure 14 A is the cut-open view that expression is assembled in the LED demonstration recombiner unit on this improved floor display in the past.
Figure 14 B is that expression is assembled in the figure that this LED shows the LED substrate on the recombiner unit.
Figure 15 is assembled in the circuit diagram that this LED shows the led drive circuit of the section unit on the recombiner unit.
Embodiment
Below, various embodiments of the present invention will be described to use accompanying drawing.
(the 1st embodiment)
The floor display 30 of the elevator that the 1st embodiment of the present invention is related, shown in Figure 1A, be installed in like that near the wall surface of door 31 of elevator hall of each floor of buildings, perhaps shown in Figure 1B, be installed in like that on the wall surface of upside of the door 33 in the car 32 of elevator.
The outside drawing of Fig. 2 state that to be expression unload the floor display 30 of the 1st embodiment from wall surface, Fig. 3 is the exploded perspective view of the floor display 30 of this embodiment.Give same-sign for the part identical, the detailed description of the part that repeats is omitted with floor display in the past 1 before Figure 10, the transformation shown in Figure 11.
The floor display 30 of the 1st embodiment is dividing haply, comprising: be formed with the box shell 3 of segmentation window 2 in front, described segmentation window 2 has the shape of each segmentation that constitutes the segmentation character; Determine the color filter 4 of the Show Color of segmentation character; Light spacer body 5; With 7 corresponding 7 led display units 34 of segmentation; Substrate 9, it is connected with display signal line 7 on overleaf, and 7 that install with 7 conductings of each display signal line everybody relative with each segmentation window 2 on inner face are connected pin 8; With the fixing pin 10 that box shell 3, color filter 4, light spacer body 5 and substrate 9 are linked.
In order to prevent that each light in 7 led display units 34 from leaking into other the segmentation window 2 of led display unit 34 beyond self the segmentation window 2, light spacer body 5 is formed with light pipe with respect to the segmentation window 2 of self to each led display unit 34.In addition, the size of led display unit 34, shape and in the past in the device incandescent lamp 6 shown in employed Figure 12 A～Figure 12 D roughly the same, so light spacer body 5 former states are used the light spacer body 5 of device in the past.
That is 7 incandescent lamps 6 in the floor display in the past 1 before, the floor display 30 of embodiment only will be transformed are replaced by 7 led display units 34.
Fig. 4 A～Fig. 4 C is that expression is set to the figure that respectively connects pin 8 loading and unloading each led display unit 34 freely with respect to substrate 9.Fig. 4 A is a side view, and Fig. 4 B is a front elevation, and Fig. 4 C is an elevation view.In addition, Fig. 5 is the cut-away view of led display unit 34.In addition, expression is arranged on led drive circuit 38 in this led display unit 34 in Fig. 6.
At this led display unit 34,, on the upper end open of this resin enclosure 36, be fixed with transparent lens cover 37 being installed in the resin enclosure 36 that tubular is installed in the rubber ends daughter 35 that connects on the pin 8.Therefore, constitute the display unit shell by resin enclosure 36 and lens cover 37.
In lens cover 37, be equipped with silicon wafer 41 as semiconductor element, wherein said silicon wafer 41 is mounted with 2 LED elements 39 of led drive circuit shown in Figure 6 38 and constitutes 4 diodes 40 of the diode-bridge circuit of rectifier.And, taken in diffusing lens 42 above it.
The rectifier that is formed on the silicon wafer 41 is connected on each contact 45 of rubber ends daughter 35 via being accommodated in a pair of electric current limiting resistance 43 in the resin enclosure 36, lead 44.In this embodiment, by bottom lead 44 is bent laterally and constitute contact 45 in rubber ends daughter 35.
Rubber ends daughter 35 is same with resin enclosure 36, can connect being electrically connected of pin 8 and contact 45 by taking in the connection pin 8 of each electric current limiting resistance 43, insertion substrate 9.
Lead 44 by using electric current limiting resistance 43 of lens cover 37, resin enclosure 36, rubber ends daughter 35, rubber ends daughter 35 is installed on the connection pin 8 of substrate 9, lead 44 bendings that to expose to the side direction of rubber ends daughter 35 are fixed each shell thus.
The insertion section that the connection pin 8 with substrate 9 of rubber ends daughter 35 inserts forms shape shown in Figure 5, and this insertion section is made as than connecting the slightly little hole of pin 8, can utilize flexible led display unit 34 is fixed on of rubber to connect on the pin 8 thus.Therefore, rubber ends daughter 35 is being installed in when connecting on the pin 8, connect pin 8 via contact 45, lead 44 electric property be connected on the electric current limiting resistance 43.
Then, when each being connected pin 8 energisings by each shows signal that for example exchanges from 7 inputs of each display signal line, be installed in respectively connect on the pin 8, with the corresponding Fig. 4 A of this segmentation～Fig. 4 C, led display unit 34 shown in Figure 5 on added the shows signal that exchanges.The shows signal of this interchange limits current values by electric current limiting resistance 43, and converts direct current to by diode-bridge circuit, is supplied to 2 LED elements 39.Its result, 2 LED elements 39 are luminous, and this light is converged to the segmentation window 2 of the correspondence of box-shaped enclosure 3 then temporarily by diffusing lens 42 diffusions by light spacer body 5.Its result, each segmentation that constitutes the segmentation character is lighted.
In the floor display that is transformed into the LED display mode 30 of the elevator of the 1st embodiment that constitutes like this, only, just can be transformed into the floor display 30 of LED display mode simply from the floor display 1 of incandescent lamp display mode by with respect to being connected pin 8, replacing incandescent lamp 6 to be installed in the led display unit 34 that inside is assembled with LED element 39 of on the inner face that is arranged on substrate 9 and energising usefulness display signal line 7 conductings.
In addition, led display unit 34 is arranged in each segmentation, so can in each segmentation, change led display unit 34, so when generation shows bad led display unit 34, as long as change led display unit 34 with the main points identical with the main points of changing incandescent lamp 6 in the past.Therefore, realize the facilitation of improved maintenance.
And then, in the led display unit 34 of this embodiment, be assembled with the diode-bridge circuit that constitutes rectifier.Therefore, the shows signal of importing from display signal line 7 can adopt any one interchange shows signal and the direct current shows signal.Exchanging shows signal is that direct current is supplied with LED element 39 by rectifier rectification.
In addition, under the situation of direct current shows signal, by constituting the diode-bridge circuit of rectifier, even the polarity (+) of direct current shows signal, (-) mistake can prevent that also the breakage of LED element 39 is in possible trouble.
(the 2nd embodiment)
Fig. 7 is the circuit diagram of the led drive circuit 38a of each electronic unit in the led display unit 34a that is assembled in the floor display of elevator of the 2nd embodiment of the present invention.For with the led display unit 34a that is assembled in the 1st embodiment shown in Figure 6 in the identical part of led drive circuit 38 of each electronic unit, give same-sign, the detailed description of the part that repeats is omitted.
In addition, Fig. 8 A is the side view of led display unit 34a, and Fig. 8 B is the figure of the in-built part of expression led display unit 34a.For with the part that Fig. 4 A～Fig. 4 C, Fig. 5 are identical, give same-sign, the detailed description of the part that repeats is omitted.Other structure is identical with previously described the 1st embodiment device.
By 4 diodes of LED (Light Emitting Diode) element 47 formation diode-bridge circuits, wherein said diode-bridge circuit constitutes the rectifier in the led display unit 34a that is formed on the 2nd embodiment.
Then, shown in Fig. 8 B, be provided with diffusing lens 42 in the top position of 4 LED elements 47 that are formed on diode-bridge circuit on the silicon wafer 41, that constitute rectifier and original LED element 39.
At the led display unit 34a that constitutes like this, luminous when 4 LED elements 47 of the diode-bridge circuit of formation rectifier flow through electric current in the clockwise direction, so the light quantity of led display unit 34a integral body increases.
In addition, each the LED element 47 that is connect by bridging is carrying out alternating voltage under the situation of rectification, per 1/2 cycle is added reverse voltage, but be attached to 1 reverse voltage on the LED element 47 and be (reverse voltage of the LED element 47 that 1 rectification is used)+(reverse voltage of 1 luminous special LED element 39), when the electric current that in LED element 47, flows through about 1mA, the voltage of LED element 47 descends and is generally 1.5V * 2=3V, but the breakdown reverse voltage of general LED element 47 is about 5V, so LED element 47 can be not damaged.
In addition, also can constitute the shape of led display unit 34a as shown in Figure 9, with the transversely arranged as shown in Figure 9 one-tenth of each LED element 1 row, to each segmentation window 2 of box-shaped enclosure 3 irradiates light equably.At this moment, do not make with light spacer body 5.
Claims (8)
1. the floor display of an elevator is arranged in the ladder riding hall and car of each floor of buildings, shows the current floor that is positioned at of described car by the segmentation character, it is characterized in that, comprising:
The box shell, it is formed with the segmentation window of the shape with each segmentation that constitutes described segmentation character, backside openings in front;
Substrate, it is connected with many display signal lines on overleaf, installs a plurality of pins that are connected with the energising usefulness of described each display signal line conducting everybody relative with described each segmentation window on inner face, is installed on the opening at the back side of described box shell; With
A plurality of led display units, the rubber ends daughter mounting or dismounting that they are used via incandescent lamp are arranged on respectively connecting on the pin of described substrate freely, are assembled with the LED element, and this LED element is switched under the state that is installed on the described connection pin.
2. the floor display of the elevator put down in writing of claim 1 is characterized in that: comprise being accommodated in the described box shell, under the state on the opening that described substrate is installed in described box shell, will being installed in the described light spacer body that respectively connects the light of each led display unit on the pin to each relative segmentation window guiding.
3. the floor display of claim 1 or 2 elevators of being put down in writing is characterized in that, described each led display unit comprises:
The rubber ends daughter, it is installed on the connection pin that is installed on the described substrate;
Rectifier, it is by the diode-bridge circuit that carries out rectification via the shows signal of described display signal line, described connection pin and rubber ends daughter input is constituted;
A pair of electric current limiting resistance, it is installed between described rubber ends daughter and the described rectifier;
The LED element, it is by luminous by the direct current of described rectifier rectification;
Diffusing lens, it makes the light diffusion of being sent by described LED element; With
The display unit shell, its part with described rubber ends daughter, described a pair of electric current limiting resistance, described rectifier, described LED element and described diffusing lens cover jointly.
4. the floor display of the elevator put down in writing of claim 3 is characterized in that:
Each diode that constitutes the diode-bridge circuit of described rectifier is made of the LED element;
The light diffusion that described diffusing lens makes the light that sent by the described LED element that is connected on this diode-bridge circuit that is made of the LED element and sent by each LED element of described diode-bridge circuit.
5. the floor display of the elevator put down in writing of claim 3, it is characterized in that: from the shows signal of described display signal line input is AC signal or direct current signal.
6. the floor display of the elevator put down in writing of claim 3, it is characterized in that: the diode-bridge circuit and the LED element that constitute described rectifier are assembled on the semiconductor element.
7. the floor display of the elevator put down in writing of claim 4, it is characterized in that: the diode-bridge circuit and the LED element that constitute described rectifier are assembled on the semiconductor element.
8. the floor display of the elevator put down in writing of claim 5, it is characterized in that: the diode-bridge circuit and the LED element that constitute described rectifier are assembled on the semiconductor element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007209663A JP2009040590A (en) | 2007-08-10 | 2007-08-10 | Elevator floor indicator |
| JP209663/2007 | 2007-08-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101364362A true CN101364362A (en) | 2009-02-11 |
| CN101364362B CN101364362B (en) | 2011-06-15 |
Family
ID=40390712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101449099A Expired - Fee Related CN101364362B (en) | 2007-08-10 | 2008-08-07 | Floor indicator for elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2009040590A (en) |
| CN (1) | CN101364362B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692203A (en) * | 2015-03-26 | 2015-06-10 | 江苏莘翔机电有限公司 | Elevator floor display device |
| CN109309408A (en) * | 2017-06-13 | 2019-02-05 | 美国亚德诺半导体公司 | The wireless charging technology and related system and method for intelligent clothing |
| CN113223481A (en) * | 2020-02-06 | 2021-08-06 | 雅马哈株式会社 | Display device for musical instrument and display switching method for display device for musical instrument |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59173356U (en) * | 1983-05-07 | 1984-11-19 | 和泉電気株式会社 | light emitting diode lamp |
| JPH0524670U (en) * | 1991-04-12 | 1993-03-30 | オーチス エレベータ カンパニー | Indicator light |
| JPH05198843A (en) * | 1992-01-23 | 1993-08-06 | Toshiba Lighting & Technol Corp | Light emitting diode lamp and light emitting diode display device |
| JP3673423B2 (en) * | 1999-03-25 | 2005-07-20 | 株式会社日立ビルシステム | Display device and manufacturing method thereof |
-
2007
- 2007-08-10 JP JP2007209663A patent/JP2009040590A/en active Pending
-
2008
- 2008-08-07 CN CN2008101449099A patent/CN101364362B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692203A (en) * | 2015-03-26 | 2015-06-10 | 江苏莘翔机电有限公司 | Elevator floor display device |
| CN109309408A (en) * | 2017-06-13 | 2019-02-05 | 美国亚德诺半导体公司 | The wireless charging technology and related system and method for intelligent clothing |
| CN113223481A (en) * | 2020-02-06 | 2021-08-06 | 雅马哈株式会社 | Display device for musical instrument and display switching method for display device for musical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009040590A (en) | 2009-02-26 |
| CN101364362B (en) | 2011-06-15 |
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