CN201796779U - Electrophoresis display key structure capable of switching display directions - Google Patents
Electrophoresis display key structure capable of switching display directions Download PDFInfo
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- CN201796779U CN201796779U CN2010202049819U CN201020204981U CN201796779U CN 201796779 U CN201796779 U CN 201796779U CN 2010202049819 U CN2010202049819 U CN 2010202049819U CN 201020204981 U CN201020204981 U CN 201020204981U CN 201796779 U CN201796779 U CN 201796779U
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- electrophoretic display
- key structure
- printed circuit
- circuit board
- press
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Abstract
An electrophoresis display key structure capable of switching display directions comprises a printed circuit board, an electrophoresis display film, a transparent electrode layer and a control element. The electrophoresis display film is arranged on the printed circuit board, the transparent electrode layer is disposed on the electrophoresis display film, the printed circuit board comprises a plurality of electrode blocks respectively corresponding to key areas, and each electrode block comprises a plurality of electrodes. In the same electrode block, the electrodes form at least two patterns, and the patterns share the partial electrodes.
Description
Technical field
The utility model is about a kind of electrophoretic display press-key structure with switching display direction, particularly a kind of electrophoretic display press-key structure in conjunction with electrophoretic display thin film and control element.
Background technology
Along with the progress and development of science and technology, in many electronic equipments, all need to use input unit, import various data to make things convenient for the user, for example news in brief or instruction, or carry out various functions, for example moving cursor.Particularly mobile electronic product, for example mobile phone or personal digital assistant.Keyboard is a kind of input unit that is common in the mobile electronic product, and is made up of a plurality of press-key structure.Each press-key structure is represented a predetermined information, and for example literal or symbol are to make things convenient for the user to select and to import.
The letter symbol of conventional keys structure representative or numerical chracter adopt methods such as printing or plane attaching directly to be shown on the keycap of press-key structure usually.Be worn for fear of letter symbol and numerical chracter and can't identification, existing conventional art is designed to the keycap of press-key structure transparent, and utilize the laser engraving processing procedure that numeral, literal or the symbol that institute's desire shows is formed in the keycap of press-key structure, to avoid the wearing and tearing of numeral, literal or symbol.Yet, in recent years, downsizing along with the mobile electronic product, the press-key structure that is used to import also dwindles thereupon, cause easily shown letter symbol or numerical chracter too little and can't identification or the area of press-key structure too little and required letter symbol or numerical chracter can't be put thereon problem.And the function of mobile electronic product is also constantly upgraded along with the progress of science and technology, the feasible information that must represent multiple difference in functionality as the press-key structure of input unit.Therefore, in order to allow the user be picked out the information of each press-key structure representative difference in functionality, need the multiple distinct symbols of demonstration to represent in each press-key structure.
Japanese Unexamined Patent Publication No 2009200666 proposes a kind of mobile device of changeable symbol display direction, allows the user use different modes to operate this mobile device, and the symbol of press-key structure can be shown towards different directions.Please refer to Fig. 1 and Fig. 2, Fig. 1 and Fig. 2 are the schematic diagram of the corresponding display direction of two kinds of modes of operation of conventional mobile phone device and its symbol.As shown in Figure 1, conventional mobile phone device 10 comprises a loam cake 12, a lower cover 14, a press-key structure 16 and two rotation hub structures 18,20, and press-key structure 16 is positioned at lower cover 14.When loam cake 12 when a first direction 22 starts, wherein a rotation hub structure 18 can be done corresponding rotation, makes press-key structure 16 demonstrate a plurality of first symbols 24, and first symbol 24 shows towards the rightabout of first direction 22.As shown in Figure 2, when loam cake 12 when second direction 26 starts, another rotation hub structure 20 can be done corresponding rotation, press-key structure 16 can demonstrate a plurality of second symbols 28, and second symbol 28 is that rightabout towards second direction 26 shows.
Yet the quantity of the rotation hub structure of this conventional mobile phone device is that the quantity or the symbol kind of the symbol display direction that had with press-key structure is identical, makes the symbol kind of press-key structure can be subject to the quantity of rotation hub structure.If desire to make press-key structure to demonstrate distinct symbols kind or display direction under different mode, to promote the information category that press-key structure can be represented, then the quantity of rotation hub structure must increase relatively, so cost of manufacture also improves thereupon.In view of this, solve that press-key structure is shown to go out symbol kind or the limited problem of display direction, and avoid the real target of making great efforts for industry of the too little and situation can't identification of shown letter symbol or numerical chracter.
The utility model content
One of the purpose of this utility model is to provide a kind of electrophoretic display press-key structure that switches display direction that has, to solve the above problems.
In order to achieve the above object, the utility model provides a kind of a plurality of key zones that have, and this electrophoretic display press-key structure comprises: one first printed circuit board (PCB), comprise a plurality of electrode blocks, correspond respectively to respectively this key zone, and respectively this electrode block comprises a plurality of electrodes, wherein be arranged in respectively this electrode block, these electrodes constitute at least two patterns, and these these electrodes of pattern common sparing; One electrophoretic display thin film is located on this first printed circuit board (PCB); One transparent electrode layer is located on this electrophoretic display thin film; And a control element, be located in these key zones, in order to produce input signal.
Press-key structure with switching display direction of the present utility model has a plurality of key zones.Press-key structure comprises one first printed circuit board (PCB), an electrophoretic display thin film, a transparent electrode layer, a plurality of keycap and a control element.First printed circuit board (PCB) comprises a plurality of electrode blocks, corresponds respectively to each key zone, and each electrode block comprises a plurality of electrodes, and its meta is in same electrode block, and electrode constitutes at least two patterns, and pattern common sparing electrode.Electrophoretic display thin film is located on first printed circuit board (PCB), and transparent electrode layer is located on the electrophoretic display thin film.Keycap is located at respectively on the transparent electrode layer of each key zone.Control element is located in the key zone, in order to produce input signal.
The utility model is by a plurality of electrodes being set in each electrode block, and make the plural pattern that is positioned at each electrode block use partial electrode jointly, so the shown pattern that goes out of electrophoretic display thin film can avoid dwindling in order to overlap each other the size of pattern.
Advantage of the present utility model is, by a plurality of electrodes being set in each electrode block, and make the plural pattern that is positioned at each electrode block use partial electrode jointly, therefore the shown pattern that goes out of electrophoretic display thin film can avoid dwindling in order to overlap each other the size of pattern, and then solves conventional art and cause the problem that pattern can't identification because of dwindling of electrophoretic display press-key structure.And the utility model only changes the electrode pattern in each electrode block, can make the pattern of electrophoretic display thin film demonstration different mode, and then the electrophoretic display press-key structure can be done the switching of multiple distinct symbols or the symbol of a plurality of different directions switches.
Description of drawings
Fig. 1 and Fig. 2 are the schematic diagram of the corresponding display direction of two kinds of modes of operation of conventional mobile phone device and its symbol.
Fig. 3 be the utlity model has the electrophoretic display press-key structure that switches display direction on look schematic diagram.
Fig. 4 is the decomposing schematic representation with the electrophoretic display press-key structure that switches display direction of the utility model first embodiment.
Fig. 5 is the generalized section of the electrophoretic display press-key structure of the utility model first embodiment in each key zone.
Fig. 6 is for looking schematic diagram on the utility model unitary electrode block.
Fig. 7 is another example of unitary electrode block of the present utility model.
Fig. 8 is the another example of unitary electrode block of the present utility model.
Fig. 9 is another example of the display direction of the utility model first pattern and second pattern.
Figure 10 shows the schematic diagram of the first pattern pattern for electrophoretic display press-key structure of the present utility model.
Figure 11 shows the schematic diagram of the second pattern pattern for electrophoretic display press-key structure of the present utility model.
Figure 12 is the generalized section of the electrophoretic display press-key structure of the utility model second embodiment in each key zone.
Figure 13 is the generalized section of the electrophoretic display press-key structure of the utility model the 3rd embodiment in each key zone.
The main element symbol description
10 mobile devices, 12 loam cakes
14 lower covers, 16 press-key structures
18 rotation hub structures, 20 rotation hub structures
22 first directions, 24 first symbols
26 second directions, 28 second symbols
100 electrophoretic display press-key structures, 102 key zones
104 control elements, 106 first printed circuit board (PCB)s
108 electrophoretic display thin films, 110 transparent electrode layers
112 keycaps, 114 metal clipss
116 shell fragment films, 118 projections
120 second printed circuit board (PCB)s, 122 adhesive tapes
124 electrode blocks, 126 first electrodes
128 second electrodes, 130 common electrodes
130a common electrode 130b common electrode
130c common electrode 130d common electrode
132 first patterns, 134 second patterns
136 third electrodes 138 the 3rd pattern
140 light guide plate, 142 adhesion coatings
144 light sources, 200 electrophoretic display press-key structures
202 capacitance type touch-control panels, 204 second printed circuit board (PCB)s
250 electrophoretic display press-key structures
Embodiment
Please refer to Fig. 3, Fig. 3 be the utlity model has the electrophoretic display press-key structure that switches display direction on look schematic diagram.As shown in Figure 3, electrophoretic display press-key structure 100 has a plurality of key zones 102, is desired the function of incoming symbol to correspond to respectively.In order to clearly demonstrate electrophoretic display press-key structure of the present utility model, please refer to Fig. 4 and Fig. 5.Fig. 4 is the decomposing schematic representation of the electrophoretic display press-key structure of the utility model first embodiment, and Fig. 5 is the generalized section of the electrophoretic display press-key structure of the utility model first embodiment in each key zone.As Fig. 4 and shown in Figure 5, electrophoretic display press-key structure 100 of the present utility model comprises a control element 104, one first printed circuit board (PCB) 106, an electrophoretic display (electrophoretic display, EPD) film 108, a transparent electrode layer 110 and a plurality of keycap 112.In the present embodiment, control element 104 comprises a plurality of metal clipss 114, a shell fragment film 116, a plurality of projection (plunger) 118 and one second printed circuit board (PCB) 120.Second printed circuit board (PCB) 120 can be bendable printed circuit board (PCB), but not as limit.Each metal clips 114 is located on second printed circuit board (PCB) 120 of each key zone 102, and when pushing, the metal clips 114 that is pressed electrically conducts with the corresponding printed circuit of second printed circuit board (PCB) 120 of its below, pushes signal and produce.Shell fragment film 116 is located on the metal clips 114, and shell fragment film 116 has the adhesion function, in order to cover with sticky metals shell fragment 114 on second printed circuit board (PCB) 120.Each projection 118 corresponds respectively to each metal clips 114, and is located between first printed circuit board (PCB) 106 and the shell fragment film 116.And by shell fragment film 116, projection 118 can anchor on the shell fragment film 116, but the utility model is not limited thereto, and projection 118 also can be located between metal clips 114 and the shell fragment film 116.The projection 118 of present embodiment is formed by silica gel (silicone) or rubber (rubber).
In addition, first printed circuit board (PCB) 106 is located on the control element 104, and the electrophoretic display press-key structure can also comprise an adhesive tape 122, and the shell fragment film 116 of first printed circuit board (PCB) 106 with its below combined.Electrophoretic display thin film 108 is located on first printed circuit board (PCB) 106, and transparent electrode layer 110 is located on the electrophoretic display thin film 108, makes first printed circuit board (PCB) 106, electrophoretic display thin film 108 constitute a module with transparent electrode layer 110, to carry out Presentation Function.First printed circuit board (PCB) 106 can be bendable printed circuit board (PCB), and is electrically connected to a signal controller, in order to voltage signal to the first printed circuit board (PCB) 106 to be provided.110 of transparent electrode layers are electrically connected to a common electric potential, for example ground connection.Therefore, when signal controller provides voltage signal to the first printed circuit board (PCB) 104, first printed circuit board (PCB) 104 can be on the vertical direction of electrophoretic display thin film 108 with transparent electrode layer 110, that is the direction of vertical electrophoresis display button structure 100, one vertical electric field is provided, and then makes electrophoretic display thin film 108 demonstrate pattern.In addition, each keycap 112 corresponds to each projection 118 respectively, and is located on the transparent electrode layer 110.Keycap 112 is formed by UV-cured resin, but is not limited thereto, and each keycap 112 has the button profile, pushes for the user, and provides the user to be distinguished different key district 102 in use.And electrophoretic display thin film 108 can be the electrophoretic display structure of any pattern, and for example: electrophoretic display thin film 108 can comprise a plurality of microcapsules and a plurality of liquid level, and each liquid level is located in each microcapsules.Perhaps, electrophoretic display thin film 108 can comprise a plurality of nick cup structures, a plurality of liquid level and a sealant, and sealant is sealed in each liquid level in each nick cup structure, but electrophoretic display thin film of the present utility model is not limited thereto.
It should be noted that first printed circuit board (PCB) 106 of the present utility model comprises a plurality of electrode blocks 124, is located at respectively in each key zone 102.Each electrode block 124 has a plurality of electrodes, and is arranged in each electrode block 124, and these electrodes can constitute at least two patterns, and these a little pattern common sparing electrodes.In order to clearly demonstrate each electrode block of first printed circuit board (PCB) of the present utility model, below be that example is described further with the unitary electrode block.Please refer to Fig. 6, Fig. 6 is for looking schematic diagram on the utility model unitary electrode block.As shown in Figure 6, each electrode block 124 of present embodiment comprises a plurality of first electrodes 126, a plurality of second electrode 128 and a plurality of common electrode 130, and each first electrode 126, each second electrode 128 and each common electrode 130 do not contact with each other each other.In unitary electrode block 124, first electrode 126 constitutes one first pattern 132 with common electrode 130, for example: and numeral 2, and second electrode 128 constitutes one second pattern 134, for example English alphabet E with common electrode 130.But be not limited thereto, first pattern 132 and second pattern 134 can be respectively a literal, a numeral or an additional character, and why decide pattern that institute's desire shows with the signal according to the input of institute desire.In addition, the display direction of the display direction of first pattern 132 and second pattern 134 is parallel to each other.
Hence one can see that, present embodiment is by the electrode district in each electrode block is divided into a plurality of first electrodes, a plurality of second electrodes and a plurality of common electrode, and make first pattern and second pattern that are positioned at each electrode block use common electrode jointly, therefore first pattern and second pattern can need not dwindle the size of pattern because of avoiding overlapping each other, more can have pattern magnitude with the identical size of key zone, cause the problem that pattern can't identification and can solve conventional art because of dwindling of electrophoretic display press-key structure, and only need change the electrode pattern in each electrode block, can be in not increasing the switching of making multiple distinct symbols under the condition of cost.
In addition, each electrode block of the present utility model is not limited to have a plurality of first electrodes, a plurality of second electrode or a plurality of common electrode, first pattern that can show according to institute's desire in the different electrode blocks and the overlapping situation of second pattern decide the quantity of first electrode, second electrode or common electrode, and electrode block of the present utility model can comprise at least one first electrode, at least one second electrode and at least one common electrode.Please refer to Fig. 7, Fig. 7 is another example of unitary electrode block of the present utility model.Show that as Fig. 7 common electrode 130 can only be one.And each electrode block of the present utility model also is not limited to only show two patterns, and can show at least two patterns.Please refer to Fig. 8, Fig. 8 is the another example of unitary electrode block of the present utility model.As shown in Figure 8, electrode block compared to Fig. 7, the electrode block 124 of this example also comprises a plurality of third electrodes 136, and increase by one the 3rd pattern 138 in addition, so first electrode 126, second electrode 128 is different with above-mentioned example with the quantity and the shape of common electrode 130, making the overlapping part of first pattern 132 and second pattern 134 is common electrode 130a, the overlapping part of first pattern 132 and the 3rd pattern 138 is common electrode 130b, the overlapping part of second pattern 134 and the 3rd pattern 138 is common electrode 130c, first pattern, the part of second pattern and the 3rd pattern overlapping is common electrode 130d.First electrode 126 constitutes first pattern 132 with part common electrode 130a, 130b, 130d, second electrode 128 constitutes second pattern 134 with part common electrode 130a, 130c, 130d, and third electrode 136 constitutes the 3rd pattern 138 with part common electrode 130b, 130c, 130d.
And first display direction of first pattern of the present utility model and second display direction of second pattern are not limited to parallel to each other.Please refer to Fig. 9, Fig. 9 is another example of the display direction of the utility model first pattern and second pattern.As shown in Figure 9, the display direction of the display direction of first pattern 132 and second pattern 134 is orthogonal.
In addition, each electrode block of the present utility model has different patterns, to represent different predetermined informations.In order to clearly demonstrate the mode switch of electrophoretic display press-key structure of the present utility model, please refer to Figure 10 and Figure 11, and in the lump with reference to figure 6.Figure 10 is the schematic diagram that electrophoretic display press-key structure of the present utility model shows the first pattern pattern, and Figure 11 shows the schematic diagram of the second pattern pattern for electrophoretic display press-key structure of the present utility model.As Fig. 6, Figure 10 and shown in Figure 11, the first pattern pattern is meant the combination of first pattern 132 of each electrode block 124, and the second pattern pattern is meant the combination of second pattern 134 of each electrode block 124.When electrophoretic display press-key structure 100 shows the first pattern pattern, by voltage signal to the first electrode 126 and common electrode 130 are provided, make electrophoretic display thin film have vertical electric field, therefore can demonstrate each first pattern 132 corresponding to first electrode 126 and common electrode 130.When electrophoretic display press-key structure 100 is converted to the second pattern pattern, the first pattern pattern that electrophoretic display thin film is shown removes earlier, yet by voltage signal to the second electrode 128 and common electrode 130 are provided, make electrophoretic display thin film have vertical electric field, therefore can demonstrate each second pattern 134 corresponding to second electrode 128 and common electrode 130.Therefore, but electrophoretic display press-key structure 100 of the present utility model can demonstrate first pattern 132 and second pattern, 134 different time points that overlap each other respectively by common electrode 130 is set.
It should be noted that, it is sustainable first pattern or second pattern of demonstrating that electrophoretic display thin film need not continue to provide voltage signal to the first electrode and common electrode or second electrode and common electrode, therefore can further save the electric power that voltage signal is provided, and solve the lasting required electric power that expends of light-emitting diode of opening of conventional art.And the utility model only utilizes one deck electrophoretic display thin film to demonstrate different pattern in same key zone, and the light guide plate that more can reduce conventional art needs multilayer to have pattern demonstrates different patterns in same key zone.
Please continue again with reference to figure 4 and Fig. 5.Electrophoretic display press-key structure 100 of the present utility model can also comprise a light guide plate 140, an adhesion coating 142 and a light source 144.Light guide plate 140 is located on the transparent electrode layer 110, and light guide plate 140 can be for example silica gel (silicone) film, carbonic ester (polycarbonate, PC) film, heat plasticity polyurethane elastic body (thermoplastic polyurethane elastomer, TPU) film or polyethylene terephthalate (Poly (ethylene terephthalate), PET) film, and can have a plurality of nanoscale optics and layout, 5 microns to 10 microns optical microstructures for example.Adhesion coating 142 is located between light guide plate 140 and the transparent electrode layer 110, with joint light guide plate 140 and transparent electrode layer 110, and can be optics sticker or adhesive tape, but not as limit.Light source 144 is located at a side of light guide plate 140, and can be for example light-emitting diode (light-emitting diode, LED) light-emitting device such as grade.
In addition, the control element of electrophoretic display press-key structure of the present utility model is not limited to the foregoing description.Please refer to Figure 12, Figure 12 is the generalized section of the electrophoretic display press-key structure of the utility model second embodiment in each key zone.As shown in figure 12, be with the first embodiment difference, the control element of present embodiment electrophoretic display press-key structure 200 does not have structures such as metal clips, shell fragment film, projection and keycap, and control element is a capacitance type touch-control panel 202, be located on the transparent electrode layer 110, and be electrically insulated with transparent electrode layer 110.The capacitance type touch-control panel 202 of present embodiment is located between transparent electrode layer 110 and the light guide plate 140, but the utility model is not limited thereto, and capacitance type touch-control panel 202 also can be located on the light guide plate 140.And second printed circuit board (PCB) 204 is located in the capacitance type touch-control panel 202, in order to transmit touching signals.
In addition, please refer to Figure 13, Figure 13 is the generalized section of the electrophoretic display press-key structure of the utility model the 3rd embodiment in each key zone.As shown in figure 13, be that the electrophoretic display press-key structure 250 of present embodiment also comprises a plurality of metal clipss 114, a shell fragment film 116 and a plurality of projection 118 with the second embodiment difference.Shell fragment film 116 is located at first printed circuit board (PCB), 106 belows, and each metal clips 114 is located at shell fragment film 116 belows in each key zone 102 respectively.And each projection 1l 8 is located at respectively between first printed circuit board (PCB) 106 and each metal clips 114 of corresponding each metal clips 114.Whereby, when the user pushed or touch the electrophoretic display press-key structure 250 of a key zone 102, the user can experience the mechanical feedback force of metal clips 114, thereby can clearly know and push this electrophoretic display press-key structure 250.
The above only is a preferred embodiment of the present utility model, and all equalizations of being done according to the utility model content change and modify, and all should belong to covering scope of the present utility model.
Claims (13)
1. the electrophoretic display press-key structure with changeable display direction is characterized in that having a plurality of key zones, and this electrophoretic display press-key structure comprises:
One first printed circuit board (PCB) comprises a plurality of electrode blocks, corresponds respectively to respectively this key zone, and respectively this electrode block comprises a plurality of electrodes, wherein is arranged in respectively this electrode block, and these electrodes constitute at least two patterns, and these these electrodes of pattern common sparing;
One electrophoretic display thin film is located on this first printed circuit board (PCB);
One transparent electrode layer is located on this electrophoretic display thin film; And
One control element is located in these key zones, in order to produce input signal.
2. electrophoretic display press-key structure according to claim 1 is characterized in that, respectively the display direction of this pattern is parallel to each other.
3. electrophoretic display press-key structure according to claim 1 is characterized in that, respectively the display direction of this pattern is orthogonal.
4. electrophoretic display press-key structure according to claim 1 is characterized in that, also comprises a plurality of keycaps, is located at respectively on this transparent electrode layer of this key zone respectively.
5. electrophoretic display press-key structure according to claim 1 is characterized in that these keycaps comprise UV-cured resin.
6. electrophoretic display press-key structure according to claim 1 is characterized in that, this control element comprises:
One second printed circuit board (PCB) is located at this first printed circuit board (PCB) below;
One shell fragment film is located between this first printed circuit board (PCB) and this second printed circuit board (PCB); And
A plurality of metal clipss are located at respectively between this shell fragment film and this second printed circuit board (PCB) of this key zone respectively.
7. electrophoretic display press-key structure according to claim 6 is characterized in that this control element also comprises a plurality of projections, is located at this first printed circuit board (PCB) of corresponding respectively this metal clips respectively and respectively between this metal clips.
8. electrophoretic display press-key structure according to claim 7 is characterized in that these projections comprise silica gel or rubber.
9. electrophoretic display press-key structure according to claim 1 is characterized in that this control element is a capacitance type touch-control panel, is located on this transparency electrode, and is electrically insulated with this transparent electrode layer.
10. electrophoretic display press-key structure according to claim 9 is characterized in that, also comprises:
One shell fragment film is located at this first printed circuit board (PCB) below; And
A plurality of metal clipss are located at this shell fragment film below in this key zone respectively.
11. electrophoretic display press-key structure according to claim 10 is characterized in that, also comprises a plurality of projections, is located at this first printed circuit board (PCB) of corresponding respectively this metal clips respectively and respectively between this metal clips.
12. electrophoretic display press-key structure according to claim 1 is characterized in that, also comprises:
One light guide plate is located on this transparent electrode layer;
One adhesion coating is located between this light guide plate and this transparent electrode layer, to engage this light guide plate and this transparent electrode layer; And
One light source is located at a side of this light guide plate.
13. electrophoretic display press-key structure according to claim 12 is characterized in that, this light source is a light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202049819U CN201796779U (en) | 2010-05-19 | 2010-05-19 | Electrophoresis display key structure capable of switching display directions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202049819U CN201796779U (en) | 2010-05-19 | 2010-05-19 | Electrophoresis display key structure capable of switching display directions |
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| Publication Number | Publication Date |
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| CN201796779U true CN201796779U (en) | 2011-04-13 |
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| CN2010202049819U Expired - Fee Related CN201796779U (en) | 2010-05-19 | 2010-05-19 | Electrophoresis display key structure capable of switching display directions |
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| Country | Link |
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2010
- 2010-05-19 CN CN2010202049819U patent/CN201796779U/en not_active Expired - Fee Related
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Granted publication date: 20110413 Termination date: 20130519 |