CN201796778U - Electrophoretic display key structure with overlap display function - Google Patents
Electrophoretic display key structure with overlap display function Download PDFInfo
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- CN201796778U CN201796778U CN2010202049753U CN201020204975U CN201796778U CN 201796778 U CN201796778 U CN 201796778U CN 2010202049753 U CN2010202049753 U CN 2010202049753U CN 201020204975 U CN201020204975 U CN 201020204975U CN 201796778 U CN201796778 U CN 201796778U
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- key structure
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Abstract
An electrophoretic display key structure with an overlap display function comprises a printed circuit board, an electrophoretic display film, a transparent electrode layer and a control element, wherein the electrophoretic display film is arranged on the printed circuit board, and the transparent electrode layer is arranged on the electrophoretic display film. Besides, the printed circuit board includes a plurality of electrode patterns respectively arranged on a key area, each electrode pattern includes a first character and a second character, and the second character is provided with an overlap portion overlapped with the first character, so that the first characters and part of the second characters are connected with each other.
Description
Technical field
The utility model is about a kind of electrophoretic display press-key structure with overlapping demonstration, 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.Single or a plurality of predetermined characters of each press-key structure representative, for example literal or symbol are to make things convenient for the user to select and to import.
In order to improve the product portability, manufacturer there's no one who doesn't or isn't is devoted to shorten product sizes, makes product more light and handy.Yet, being subject to the identification power of human eye, font only can be contracted to a limit on the button.In case font is dwindled when overstepping the extreme limit, the ability of most people's naked eyes identification font is understood variation, if font specification is directly made button according to this, the user is just taken place probably do not see Chu's button font or miss situations such as pulling out button.Therefore, but be subject to the font identification, the volume-diminished amplitude of hand-held electronic product is limited.
Therefore, too little and can't identification for fear of literal, numeral or the additional character of input, No. 20090267808 character with button of existing U.S. Patent Publication No. amplifies, making pattern shown on the button is the part of complete character, and the shown character feature that pattern had is enough to the naked eye can pick out the character that institute's desire is represented for the user.Please refer to Fig. 1, Fig. 1 is the pattern schematic diagram of conventional keys structure.As shown in Figure 1, conventional keys structure 10 has a plurality of key zones 12, and has a pattern 14 in each key zone 12.And the pattern 14 of each key zone 12 only is the part of a complete character.
, only can on one key, show a character though but conventional art can increase the character identification of button.Therefore,, make one key present a plurality of characters, and the character that makes on the button to be presented is able to be picked out by the user, the real target of endeavouring to study for industry in order to allow the mobile electronic product be expanded input function.
The utility model content
One of the purpose of this utility model is to provide a kind of electrophoretic display press-key structure with overlapping demonstration, to solve the above problems.
In order to achieve the above object, the utility model provides a kind of electrophoretic display press-key structure with overlapping demonstration, has a plurality of key zones.The electrophoretic display press-key structure comprises: one first printed circuit board (PCB), comprise a plurality of electrode patterns, be located at respectively respectively in this key zone, respectively this electrode pattern comprises one first character and one second character, and this second character has one first lap and this first character is overlapping, this first character and this second character are connected to each other, and wherein the display direction of the display direction of this first character and this second character is orthogonal; 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.
The utility model is connected with part second character by first character with the electrode pattern in each key zone, shown first character and second character that goes out overlapped, and then dwindle the occupied area of all characters in the key zone, scalable whereby all characters that demonstrate.
Advantage of the present utility model is, by the different characters in the same key zone are overlapped, to dwindle the occupied area of all characters in the key zone, scalable whereby all overlapping characters.
Description of drawings
Fig. 1 is the pattern schematic diagram of conventional keys structure.
Fig. 2 is for looking schematic diagram on the utility model electrophoretic display press-key structure.
Fig. 3 is the generalized section of the electrophoretic display press-key structure of the utility model first embodiment along the tangent line AA ' of Fig. 2.
Fig. 4 is for looking schematic diagram on the utility model unitary electrode pattern.
Fig. 5 is another example of the utility model unitary electrode pattern.
Fig. 6 is the another example of the utility model unitary electrode pattern of the present utility model.
Fig. 7 is the another example of the utility model unitary electrode pattern of the present utility model.
Fig. 8 is the generalized section of the electrophoretic display press-key structure of the utility model second embodiment along the tangent line AA ' of Fig. 2.
Fig. 9 is the generalized section of the electrophoretic display press-key structure of the utility model the 3rd embodiment along the tangent line AA ' of Fig. 2.
The main element symbol description
10 press-key structures, 12 key zones
14 patterns, 100 electrophoretic display press-key structures
102 key zones, 104 control elements
106 first printed circuit board (PCB)s, 108 electrophoretic display thin films
108a capsule 108b liquid level
110 transparent electrode layers, 112 keycap structures
114 metal clipss, 116 shell fragment films
118 projections, 120 second printed circuit board (PCB)s
122 adhesive tapes, 124 electrode patterns
126 first characters, 128 second characters
128a first lap 130 the 3rd character
130a second lap 140 light guide plate
146 light tight framework 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. 2 and Fig. 3, Fig. 2 be the utlity model has overlapping demonstration the electrophoretic display press-key structure on look schematic diagram, Fig. 3 is the electrophoretic display press-key structure with overlapping demonstration of the utility model first embodiment generalized section along the tangent line AA ' of Fig. 2.As shown in Figure 2, electrophoretic display press-key structure 100 has a plurality of key zones 102, and each key zone 102 is corresponding to the character of desire input information.As shown in Figure 3, electrophoretic display press-key structure 100 comprises a control element 104, one first printed circuit board (PCB) 106, an electrophoretic display (electrophoretic display, EPD) film 108 and a transparent electrode layer 110.In the present embodiment, control element 104 comprises one second printed circuit board (PCB) 120, a plurality of metal clips 114, reaches a shell fragment film 116.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 produces with the corresponding printed circuit of its below second printed circuit board (PCB) 120 and electrically conducts, and then imports the signal of corresponding character representative.Shell fragment film 116 covers on the metal clips 114, and shell fragment film 116 has the adhesion function, metal clips 114 can be adhered on second printed circuit board (PCB) 120.In addition, control element 104 optionally comprises a plurality of projections (plunger) 118, and 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.Because the area of each projection 118 is less than the area of each metal clips 114, and pressure and area are inversely proportional to, therefore when the user pushes electrophoretic display press-key structure 100, projection 118 can alleviate the power that the user imposes electrophoretic display press-key structure 100, contacts with second printed circuit board (PCB) 120 and make metal clips 114 produce deformation.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).
First printed circuit board (PCB) 106 of present embodiment is located on the control element 104, and electrophoretic display press-key structure 100 can also comprise an adhesive tape 122, and the shell fragment film 116 of first printed circuit board (PCB) 106 with its below combined.First printed circuit board (PCB) 106 comprises a plurality of electrode patterns 124, is located at respectively in each key zone 102.And 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.And, electrophoretic display thin film 108 can be the electrophoretic display structure of any pattern, and in the present embodiment, electrophoretic display thin film 108 comprises a plurality of microcapsules 108a and a plurality of liquid level 108b, and each liquid level 108b is located among each microcapsules 108a, and has a plurality of black particles and a plurality of white particles.But be not limited thereto, electrophoretic display thin film 108 also 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.
In order to clearly demonstrate the design of each electrode pattern, below will do explanation with the unitary electrode pattern.Please refer to Fig. 4, Fig. 4 is for looking schematic diagram on the utility model unitary electrode pattern.As shown in Figure 4, each electrode pattern 124 comprises one first character 126 and one second character 128, and second character 128 has one first lap 128a and first character 126 is overlapping, and first character 126 and second character 128 are connected to each other.That is each electrode pattern 124 is made of overlap first character 126 and second character 128, and the first lap 128a is the lap of first character 126 and second character 128.First character 126 and second character 128 can be respectively a letter, a numeral, a phonetic, a punctuation mark, a literal or an additional character, for example: the numeral 2 of present embodiment and English alphabet capitalization A, but be not limited thereto, in order to the function of user's each key zone 102 of identification when operating.
Please continue with reference to figure 3 and Fig. 4.When voltage signal is provided to first printed circuit board (PCB) 104, form a vertical electric field between the electrode pattern 124 of first printed circuit board (PCB) 104 and the transparent electrode layer 110, act on the electrophoretic display thin film 108.Liquid level 108b in the electrophoretic display thin film 108 can be subjected to electric field action, make wherein black particles up, and then demonstrate the pattern identical with electrode pattern 124.By electrode pattern 124 being made into the overlapping of first character 126 and second character 128, the pattern that electrophoretic display thin film 108 is demonstrated also presents first character 126 and second character 128 is overlapping.And,, can reduce the area that first character 126 and second character 128 occupy key zone 102 by overlapping first character 126 and second character 128.Comparatively speaking, be positioned at first character 126 of key zone 102 and the big I of second character 128 and be exaggerated, therefore can effectively increase the identification of first character 126 and second character 128.In addition, the display direction of the display direction of first character 126 and second character 128 is parallel to each other.But be not limited thereto, please refer to Fig. 5, Fig. 5 is another example of the utility model unitary electrode pattern.As shown in Figure 5, the display direction of first character 126 also can be orthogonal with the display direction of second character 128.
In addition, each electrode pattern of the present utility model is not limit only has two characters, also can comprise the character of three characters or above quantity.Please refer to Fig. 6, Fig. 6 is the another example of the utility model unitary electrode pattern of the present utility model.Show as Fig. 6, compared to above-mentioned example, each electrode pattern 124 also comprises one the 3rd character 130, and the 3rd character 130 has one second lap 130a and second character 128 is overlapping, the 3rd character 130 and second character 128 are connected to each other, that is the 3rd character 130 and second character 128 overlap, and the second lap 130a is the lap of the 3rd character 130 and second character 128.And the second lap 130a is not overlapping with the first lap 128a.But be not limited thereto, the overlapping part of the 3rd character and second character also can with first character and overlapping the overlapping of second character, that is the second lap 130a also can be overlapping with the first lap 128a.Please refer to Fig. 7, Fig. 7 is the another example of the utility model unitary electrode pattern of the present utility model.Show that as Fig. 7 the part of the second lap 130a of the 3rd character 130 can be arranged in the first lap 128a of second character, the 3rd character 130 and second character 128 and first character 126 are connected to each other.In addition, the utility model does not limit each electrode pattern all to have three more than the character, also can according to the function desiring to provide make each electrode pattern comprise the character of varying number.
In addition, please continue with reference to figure 3, electrophoretic display press-key structure 100 of the present utility model also comprises a light guide plate 140, an adhesion coating 142, a light source 144, a keycap structure 112 and a light tight framework 146.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 (thermoplasticpolyurethane elastomer, TPU) film or polyethylene terephthalate (Poly (ethyleneterephthalate), 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-emittingdiode, LED) light-emitting device such as grade.By light guide plate 140 and light source 144 are set, but make electrophoretic display press-key structure 100 shown character and pattern of identification still under the occasion of insufficient light, operate to make things convenient for the user.Keycap structure 112 is located on the light guide plate 140, and keycap structure 112 has a ground 112a and a plurality of keycap 112b that is located on the ground 112a, and each keycap 112b corresponds to each key zone 102 respectively.Keycap structure 112 is formed by UV-cured resin, but is not limited thereto, and each keycap 112b has the button profile, pushes for the user, and provides the user to be distinguished different key district 102 in use.Light tight framework 146 is located on the ground 112a, and has a plurality of openings, exposes these buttons, to cover the ground 112a between these keycaps 112b, therefore can have shading and decorative effect.Light tight framework 146 can be for example a metal framework or a plastic frame.
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 Fig. 8, Fig. 8 is the generalized section of the electrophoretic display press-key structure of the utility model second embodiment along the tangent line AA ' of Fig. 2.As shown in Figure 8, 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 Fig. 9, Fig. 9 is the generalized section of the electrophoretic display press-key structure of the utility model the 3rd embodiment along the tangent line AA ' of Fig. 2.As shown in Figure 9, 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 118 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 doing according to the utility model change and modify, and all should belong to covering scope of the present utility model.
Claims (14)
1. the electrophoretic display press-key structure with overlapping demonstration is characterized in that having a plurality of key zones, and this electrophoretic display press-key structure comprises:
One first printed circuit board (PCB), comprise a plurality of electrode patterns, be located at respectively respectively in this key zone, respectively this electrode pattern comprises one first character and one second character, and this second character has one first lap and this first character is overlapping, this first character and this second character are connected to each other, and wherein the display direction of the display direction of this first character and this second character is orthogonal;
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, it is characterized in that, these electrode patterns wherein at least one also comprises one the 3rd character, and the 3rd character has one second lap and this second character is overlapping, and this part the 3rd character and this part second character are connected to each other.
3. electrophoretic display press-key structure according to claim 2 is characterized in that, this second lap of the 3rd character is this first lap that partially overlaps this second character.
4. electrophoretic display press-key structure according to claim 1 is characterized in that, also comprises a keycap structure, is located on this transparent electrode layer.
5. electrophoretic display press-key structure according to claim 4 is characterized in that, this keycap structure comprises:
One ground; And
A plurality of keycaps are located on this ground.
6. electrophoretic display press-key structure according to claim 4 is characterized in that, this keycap structure comprises UV-cured resin.
7. 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.
8. electrophoretic display press-key structure according to claim 7 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.
9. electrophoretic display press-key structure according to claim 8 is characterized in that these projections comprise silica gel or rubber.
10. 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.
11. electrophoretic display press-key structure according to claim 10 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.
12. electrophoretic display press-key structure according to claim 11 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.
13. 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.
14. electrophoretic display press-key structure according to claim 13 is characterized in that, this light source is a light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202049753U CN201796778U (en) | 2010-05-19 | 2010-05-19 | Electrophoretic display key structure with overlap display function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202049753U CN201796778U (en) | 2010-05-19 | 2010-05-19 | Electrophoretic display key structure with overlap display function |
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| CN201796778U true CN201796778U (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202049753U Expired - Fee Related CN201796778U (en) | 2010-05-19 | 2010-05-19 | Electrophoretic display key structure with overlap display function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI755984B (en) * | 2020-12-21 | 2022-02-21 | 達方電子股份有限公司 | Backlight keyboard |
-
2010
- 2010-05-19 CN CN2010202049753U patent/CN201796778U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI755984B (en) * | 2020-12-21 | 2022-02-21 | 達方電子股份有限公司 | Backlight keyboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20130519 |