CN101197218B - LCD device - Google Patents
LCD device Download PDFInfo
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- CN101197218B CN101197218B CN200610157452A CN200610157452A CN101197218B CN 101197218 B CN101197218 B CN 101197218B CN 200610157452 A CN200610157452 A CN 200610157452A CN 200610157452 A CN200610157452 A CN 200610157452A CN 101197218 B CN101197218 B CN 101197218B
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- liquid crystal
- light
- crystal indicator
- round table
- hollow round
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a liquid crystal displaying device, which comprises a liquid crystal panel and a switch keystroke system which controls the switch of the liquid crystal displaying device and displays the states thereof, wherein the switch keystroke system comprises a light source and a light reflecting system. The light generated from the light source is emitted out of the switch keystroke system by passing through at least two reflections of the light reflecting system as indicating light to display the state of the liquid crystal displaying device. The light reflecting system of the switch keystroke system in the liquid crystal displaying device converts the light generated from the light source into the uniform line light with high illumination and is emitted as the indicating light, thus satisfying the using requirements.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator.
Background technology
Liquid crystal indicator generally comprises the open and close that a switch key system is used to control liquid crystal indicator.This switch key system generally includes an indicator light, and this indicator light shows that with different colours or bright showing slinkingly liquid crystal indicator is in closed condition, preheat mode or operating state.
Seeing also Fig. 1, is a kind of schematic perspective view of prior art liquid crystal indicator.Frame 11, an after-frame 14, a liquid crystal panel 12 and a switch key system 13 before this liquid crystal indicator 1 comprises one.Should preceding frame 11 be the framework of hollow, it cooperates with this after-frame 14 accommodates and fixes this liquid crystal panel 12.The lower frame plate centre position of frame 11 is provided with a circular hole 125 before being somebody's turn to do.
Seeing also Fig. 2, is the perspective exploded view of the switch key system 13 of liquid crystal indicator 1 shown in Figure 1.This switch key system 13 comprises a button cap 15, a bracing frame 17, a light source 19 and a button circuit board 191.
This button cap 15 comprises a crown 151 and a hat stand 153.This crown 151 is lighttight round casing, and its edge-perpendicular is extended this hat stand 153.This bracing frame 17 comprises that a rubber-like substrate 171, an annulus frame 172, a lampshade 173 and are by bar 174.This substrate 171 comprises a stiff end 179 and a free end 170 away from this stiff end 179.This annulus frame 172 extends from these substrate 171 free ends 170 respectively round about with this lampshade 173, and coaxial.Should press bar 174 and these lampshade 173 homonymies, and contiguous this lampshade 173 is provided with.The material of this bracing frame 17 is a transparent resin material.This light source 19 is arranged on this button circuit board 191.This button circuit board 191 comprises the operating key 192 that contiguous this light source 19 is provided with, the open and close of these operating key 192 these liquid crystal panels 12 of control, the open and close of also corresponding this light source 19 of control simultaneously.
Seeing also Fig. 3, is the vertical view after switch key system 13 assembling of liquid crystal indicator 1 shown in Figure 2, and wherein this bracing frame 17 is analysed and observe along the III-III direction.This button cap 15 is snapped on this annulus frame 172, and this annulus frame 172 is accommodated the hat stand 153 of this button cap 15 and inconsistent with it to fix this button cap 15.
The stiff end 179 of this bracing frame 17 is fixed on this preceding frame 11.This button cap 15 is exposed to outside this preceding frame 11 by this circular hole 125.This button circuit board 191 is fixed on this after-frame 14, and corresponding with this bracing frame 17, and its main circuit board (figure does not show) with this liquid crystal panel 12 of control electrically connects.This lampshade 173 half is around this light source 19, and it is corresponding with this operating key 192 to press bar 174.
Deformation take place in the conflict free end 170 of these substrates 171 of this button cap 15, and drive and should press bar 174 and touch these operating keys 192, thereby make these liquid crystal panel 12 demonstrations and this light source 19 luminous.Because this button cap 15 is light tight, thereby is sponged or diffuse-reflect by this button cap 15 from the wide part that this light source 19 sends, only there is the surplus light of sub-fraction to penetrate the state that shows liquid crystal panel 12 as pilot light by this annulus frame 172.Yet the brightness of this pilot light is less and inhomogeneous, and difficult identification can not be satisfied user demand in bright environment.
Summary of the invention
In order to solve the lower problem of pilot light brightness of prior art liquid crystal indicator, be necessary to provide a kind of liquid crystal indicator with the higher status indicator lamp light of brightness.
A kind of liquid crystal indicator, it comprises a liquid crystal panel and control this liquid crystal indicator switch and show its state of switch key system, this switch key system comprises a light source and a light-conducting system.This light-conducting system comprises a Circular shape lampshade and a hollow round table, the face that connects of this Circular shape lampshade and this hollow round table adjoiner is an arc surface, two secondary reflections that pass through this hollow round table after the light that this light source produces reflects by this arc surface again penetrate this switch key system, show the state of this liquid crystal indicator as pilot light.
Compared with prior art, the linear light that the phototransformation that the light-conducting system of foregoing liquid crystal display unit switch key system sends light source is even and brightness is higher can satisfy the demand of user to the pilot light high brightness as the pilot light outgoing.
Description of drawings
Fig. 1 is a kind of schematic perspective view of prior art liquid crystal indicator.
Fig. 2 is the perspective exploded view of the switch key system of liquid crystal indicator shown in Figure 1.
Fig. 3 is the vertical view after the switch key system assembles shown in Figure 2, and wherein bracing frame is analysed and observe along the III-III direction.
Fig. 4 is the schematic perspective view of liquid crystal indicator one better embodiment of the present invention.
Fig. 5 is the decomposing schematic representation of the switch key system of liquid crystal indicator shown in Figure 4.
Fig. 6 is the partial enlarged drawing of switch key components of system as directed shown in Figure 5.
Fig. 7 is the schematic perspective view of the bracing frame of switch key shown in Figure 5 system.
Fig. 8 is the schematic perspective view at another visual angle of this bracing frame shown in Figure 7.
Fig. 9 is the cutaway view of bracing frame shown in Figure 8 along the IX-IX direction.
Figure 10 is the part assembling schematic diagram of bracing frame shown in Figure 5 and preceding frame.
Figure 11 is the vertical view after the switch key system assembles shown in Figure 5, and wherein this bracing frame is analysed and observe along the IX-IX direction.
Embodiment
Seeing also Fig. 4, is the schematic perspective view of liquid crystal indicator one better embodiment of the present invention.Frame 21, an after-frame 24, a liquid crystal panel 22 and a switch key system 23 before this liquid crystal indicator 2 comprises one.Should preceding frame 21 be the framework of hollow, it cooperates with this after-frame 24 accommodates and fixes this liquid crystal panel 22.The lower frame plate centre position of frame 21 is provided with a circular hole 215 before being somebody's turn to do.
See also Fig. 5 and Fig. 6, Fig. 5 is the decomposing schematic representation of the switch key system 23 of this liquid crystal indicator 2, and Fig. 6 is the partial enlarged drawing of these switch key system 23 parts.Contiguous these circular hole 215 places, the inboard of frame 21 are provided with two relative grabs 216 before being somebody's turn to do.This switch key system 23 comprises a button cap 25, a bracing frame 27, a light source 29 and a button circuit board 291.
This button cap 25 comprises a crown 251 and a hat stand 253.This crown 251 is lighttight round casing, and its edge-perpendicular is extended this hat stand 253.
See also Fig. 7 and Fig. 8, Fig. 7 is the schematic perspective view of the bracing frame 27 of this switch key system 23, and Fig. 8 is the schematic perspective view at another visual angle of this bracing frame 27.One end of this bracing frame 27 comprises that the round platform 279, an annular lampshade 273 and of the flexible substrate 271 of a tool, an annulus frame 272, a hollow are by bar 274.This substrate 271 comprises a stiff end 275 and a free end 270 away from this stiff end 275.This annulus frame 272 is arranged at a side of these substrate 271 free ends 270, and the round platform 279 of this hollow, this annular lampshade 273 and this are arranged at the opposite side of these substrate 271 free ends 270 by bar 274.This round platform 279 comprises a bottom surface (not indicating) and an end face (not indicating), and this bottom surface is arranged on this substrate 271, and its diameter is greater than this end face diameter.The round platform 279 of this annulus frame 272, this hollow and this annular lampshade 273 link to each other in regular turn and are coaxial.The diameter of this annulus frame 272 is greater than the diameter of this lampshade 273.This annulus frame 272 is a transparent resin material with the material of the round platform 279 of this hollow, as acrylic or Merlon, its material behavior decision light is from its its surface of inner directive, when the light angle surperficial with it is less than or equal to 45 °, then this light will be by total reflection, when the light angle surperficial with it greater than 45 °, then the major part in this light can reflect the body of this material.The sidewall of this round platform 279 and this substrate 271 are less than 45 °, be less than 135 ° with the sidewall of this annulus frame 272, but two inner surface reverberation of these round platform 279 sidewalls.Should press bar 274 contiguous these lampshades 273 is provided with.The relative both sides of this stiff end 275 are provided with two projectioies 276.This two projection 276 is corresponding with two grabs 216 that are somebody's turn to do preceding frame 21.This light source 29 is arranged on this button circuit board 291, and this light source 29 is a light-emitting diode, can be contained in this lampshade 273.This button circuit board 291 comprises the operating key 292 that contiguous this light source 29 is provided with, the open and close of these operating key 292 these liquid crystal panels 22 of control, the open and close of also corresponding this light source 29 of control simultaneously.
Please joining Fig. 9 in the lump, is the cutaway view of this bracing frame 27 shown in Figure 8 along the IX-IX direction.This lampshade 273 is an arc surface 2731 with these round platform 279 abutted surfaces, and it is directional light that this arc surface 2731 can make the anaclasis of dispersing.These round platform 279 inside comprise one first taper reflecting surface 2791 and one second taper reflecting surface 2792.This two tapers reflecting surface the 2791, the 2792nd, two interior surface opposing on the same wall of this round platform 279.This first taper reflecting surface 2791 is in the inside of this second taper reflecting surface 2792.The tap web of this two tapers reflecting surface 2791,2792 is positioned at this arc surface 2,731 one sides.
This button cap 25 is snapped on this annulus frame 272, and this annulus frame 272 is accommodated the hat stand 253 of this button cap 25 and inconsistent with it to fix this button cap 25.See also Figure 10 and Figure 11, Figure 10 is this bracing frame 27 and the part assembling schematic diagram that is somebody's turn to do preceding frame 21, and Figure 11 is the vertical view after these switch key system 23 assemblings, and wherein this bracing frame 27 is analysed and observe along the IX-IX direction.Should before two projectioies 276 of these bracing frames 27 of two grabs 216 engaging of frame 21, and then the stiff end 275 of fixing this bracing frame 27 with should before on the frame 21.This lampshade 273 is accommodated this light source 29, and it is corresponding with this operating key 292 to press bar 274.This button circuit board 291 is fixed in this after-frame 24 inboards, and electrically connects with the main circuit board of controlling this liquid crystal panel 22 (figure does not show).
When this switch key system 23 opens, the free end 270 of these button cap 25 these substrates 271 of conflict, deformation take place in this substrate 271, and drive should be pressed bar 274 and be touched this operating key 292, thereby opened this liquid crystal indicator 2 and make this light source 29 luminous.The most of light that sends from this light source 29 by these arc surface 2731 refractions after, change the path and be round platform 279 and this first taper reflecting surface 2791 of directive that directional light enters this hollow, reflex to this second taper reflecting surface 2792 by this first taper reflecting surface 2791, reflect by this second taper reflecting surface 2792 again, and finally penetrate this annulus frame 272.
Compared with prior art, the internal refraction of the bracing frame 27 of the switch key system 23 of this liquid crystal indicator 2 and multipath reflection structure change light path, most of light that originally will be wasted is utilized, and through the refraction and two secondary reflections obtain uniform annular pilot light outgoing, the brightness of this pilot light is higher and utilance is abundant.
Two outer surfaces of these round platform 279 sidewalls also can be provided with reflecting material and reach reflective effect, and the angle of these round platform 279 sidewalls and substrate is not limit in the case.This first taper reflecting surface 2791 is not limit with this second taper reflecting surface 2792 and is integrated on this round platform 279, also can be arranged at respectively on two separation assemblies and to form two secondary reflections, but the outer surface of this two separation assembly or inner surface reverberation and point-source of light is changed into even light outgoing.
Claims (10)
1. liquid crystal indicator, it comprises a liquid crystal panel and control this liquid crystal indicator switch and show its state of switch key system, this switch key system comprises a light source and a light-conducting system, it is characterized in that: this light-conducting system comprises a Circular shape lampshade and a hollow round table, the face that connects of this Circular shape lampshade and this hollow round table adjoiner is an arc surface, two secondary reflections that pass through this hollow round table after the light that this light source produces reflects by this arc surface again penetrate this switch key system, show the state of this liquid crystal indicator as pilot light.
2. liquid crystal indicator as claimed in claim 1, it is characterized in that: this switch key system further comprises a substrate, this substrate comprises a free end and a stiff end, this hollow round table is located at free end one side of this substrate, this hollow round table comprises a bottom surface and an end face, the diameter of this bottom surface is greater than the diameter of this end face, this bottom surface is arranged on this substrate, this substrate comprises an annulus frame, this annulus sets up and places a free-ended opposite side with this hollow round table, the diameter of this annulus frame is identical with the bottom surface diameter of this hollow round table, and its axle center communicates with the axle center of this hollow round table.
3. liquid crystal indicator as claimed in claim 2, it is characterized in that: this hollow round table comprises a tapered sidewalls, this sidewall comprises one first cone-shaped inner surface and one second cone-shaped inner surface, this first cone-shaped inner surface is relative with this second cone-shaped inner surface, and the angle of this sidewall and this substrate is less than 45 °.
4. liquid crystal indicator as claimed in claim 3 is characterized in that: this hollow round table material is a transparent resin material.
5. liquid crystal indicator as claimed in claim 3 is characterized in that: sidewall two outer surfaces of this hollow round table have reflecting material.
6. liquid crystal indicator as claimed in claim 3 is characterized in that: this light source is a point-source of light.
7. liquid crystal indicator as claimed in claim 6, it is characterized in that: this two inner surface is a reflecting surface, and its axle center communicates with this point-source of light, and the light that this light source sends reflexes to this second inner surface by this first inner surface, reflects this switch key system by this second inner surface again.
8. liquid crystal indicator as claimed in claim 7 is characterized in that: this Circular shape lampshade be located at this hollow round table away from this substrate one end, this Circular shape lampshade is around this light source, this arc surface can be refracted as directional light with diverging light.
9. liquid crystal indicator as claimed in claim 2, it is characterized in that: this switch key system further comprises one by bar, should be arranged on this substrate by bar, and contiguous this hollow round table, this light source is arranged on the circuit board that electrically connects with this liquid crystal panel, comprise a button that is provided with in abutting connection with this light source on this circuit board, the switch of this liquid crystal indicator of this button control and this light source, and its to press bar corresponding with this.
10. liquid crystal indicator as claimed in claim 2, it is characterized in that: this liquid crystal indicator comprises the framework of a hollow, this framework is fixed this liquid crystal panel, the inboard two relative grabs that are provided with in the hollow space below of this framework, this two grab is fixed the stiff end of this substrate, and then fix this switch key system, and the hollow space below of this framework is provided with a through hole, and this through hole is corresponding with this annulus frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610157452A CN101197218B (en) | 2006-12-08 | 2006-12-08 | LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610157452A CN101197218B (en) | 2006-12-08 | 2006-12-08 | LCD device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101197218A CN101197218A (en) | 2008-06-11 |
| CN101197218B true CN101197218B (en) | 2010-05-19 |
Family
ID=39547532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610157452A Expired - Fee Related CN101197218B (en) | 2006-12-08 | 2006-12-08 | LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101197218B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077840B (en) * | 2013-01-16 | 2015-09-30 | 青岛海信宽带多媒体技术有限公司 | Luminous key device and electric equipment |
| CN105333461A (en) * | 2014-07-30 | 2016-02-17 | 博西华电器（江苏）有限公司 | Operation device of stove and stove |
| TWI625751B (en) * | 2017-04-05 | 2018-06-01 | 達方電子股份有限公司 | Key assembly for display of image |
| CN109308974B (en) * | 2017-07-28 | 2020-04-28 | 国基电子（上海）有限公司 | Light guide assembly and electronic device using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1371015A (en) * | 2002-04-04 | 2002-09-25 | 河北工业大学 | Narrow viewing angle liquid crystal display |
| CN1713319A (en) * | 2004-06-23 | 2005-12-28 | 富士电机零售设备系统株式会社 | Pushbutton switch for vending machines |
| CN2793901Y (en) * | 2005-03-24 | 2006-07-05 | 叶峻麟 | Touch-controlled panel key button |
-
2006
- 2006-12-08 CN CN200610157452A patent/CN101197218B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1371015A (en) * | 2002-04-04 | 2002-09-25 | 河北工业大学 | Narrow viewing angle liquid crystal display |
| CN1713319A (en) * | 2004-06-23 | 2005-12-28 | 富士电机零售设备系统株式会社 | Pushbutton switch for vending machines |
| CN2793901Y (en) * | 2005-03-24 | 2006-07-05 | 叶峻麟 | Touch-controlled panel key button |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-257381A 2001.09.21 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101197218A (en) | 2008-06-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20181208 |