CN201004396Y - Side projection ultra-thin light guiding key module - Google Patents

Side projection ultra-thin light guiding key module Download PDF

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Publication number
CN201004396Y
CN201004396Y CNU2006201394660U CN200620139466U CN201004396Y CN 201004396 Y CN201004396 Y CN 201004396Y CN U2006201394660 U CNU2006201394660 U CN U2006201394660U CN 200620139466 U CN200620139466 U CN 200620139466U CN 201004396 Y CN201004396 Y CN 201004396Y
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CN
China
Prior art keywords
light
flexible member
printing opacity
micro
light guide
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Expired - Lifetime
Application number
CNU2006201394660U
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Chinese (zh)
Inventor
陈志鸿
华名瑜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HONGHUI INDUSTRY Co Ltd
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HONGHUI INDUSTRY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CNU2006201394660U priority Critical patent/CN201004396Y/en
Application granted granted Critical
Publication of CN201004396Y publication Critical patent/CN201004396Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a side direction lighting type ultra-thin light conductive keypad module, comprising a light transmission elastic element, the bottom of which is provided with a plurality of light conductive micro structure; at least one lighting element, which is arranged at one side of the light transmission elastic element; a displaying layer, which is arranged on the upper end of the light transmission elastic element and is provided with a plurality of light transmission parts; and an elastic filling layer, which is arranged between the light transmission elastic element and the displaying layer. Thereby the utility model is able to reduce the usage amount of the LBD and decrease the power waste, thus reduce the charge amount and increase the useful time of the battery. Besides, because that no other independent elements are needed to server as the light conductive structure, the thickness of the keypad module can be reduced, with a mass production thickness less than one millimeter and a function of light conduction.

Description

The ultra-thin light guide key module of side direction light-projecting type
Technical field
The utility model relates to a kind of ultra-thin light guide key module, especially relates to the ultra-thin light guide key module of a kind of side direction light-projecting type (side light-projecting type).
Background technology
Along with the arrival in Information technology epoch, add the continuous progress of communication network technology, mobile phone (or being called mobile phone) has become one of present modal communication tool.The mobile phone product is gently little, easy to carry, multiple functional with its volume, and price cheap day by day, be subjected to liking of more and more consumers.Ordinary consumer is being chosen on the mobile phone, big city with the function of mobile phone and profile as Consideration, and, release the mobile phone multiple functional, that profile is novel on the market also at consumer's trend.
Existing mobile phone key module is shinny for the font that can make the top, light-emitting diode (Light Emitting Diode is placed in general zone that all need be luminous below key-press module, LED) to produce light source, utilize the material behavior of the rubber (Rubber) of key-press module itself again, make the direct of travel of light scatter change light and make the printing opacity font of top shinny.
Yet, the employed rubber of present situation, because the relation of material behavior, its light transmittance is lower, so the loss of light source in rubber is very big, and makes light source can't be delivered to zone far away.Moreover near the font that will illuminate key-press module, generally just must use 6~8 light-emitting diodes is used as light source.
The material that adopts the high light penetrance was also arranged in the past,, yet also need adopt 4 light-emitting diodes just enough so that the loss of light source is less.Therefore, above-mentioned existing mode, the transmission efficiency of its light and uniformity are not good.
As from the foregoing, above-mentioned existing key-press module in practical application, obviously has inconvenience and exists with problem, and can wait to be improved.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of ultra-thin light guide key module of side direction light-projecting type, at the printing opacity flexible member of high light transmittance (for example: add the leaded light micro-structural rubber), utilize light-emitting component (for example: light-emitting diode) work as light source (non-in the past below rubber) again at the sidewall of this printing opacity flexible member, then in conjunction with original key-press module manufacturing process, can utilize less light source and realize high brightness and high uniformity.
To achieve these goals, the utility model provides a kind of ultra-thin light guide key module of side direction light-projecting type, and it comprises: a printing opacity flexible member, at least one light-emitting component, a display layer, an and elasticity packed layer.
Wherein, the bottom of this printing opacity flexible member has a plurality of leaded light micro-structurals; This at least one light-emitting component is arranged on a side of this printing opacity flexible member; This display layer is arranged at the upper end of this printing opacity flexible member, and this display layer has a plurality of transmittance sections; And this elasticity packed layer is arranged between this printing opacity flexible member and this display layer.
Whereby, when this at least one light-emitting component throwed a light source to this printing opacity flexible member, this printing opacity flexible member was with the upwards guiding of this light source, so that this light source penetrates this transmittance section of this elasticity packed layer and this display layer by this leaded light micro-structural.
In order to solve the problems of the technologies described above, provide a kind of ultra-thin light guide key module of side direction light-projecting type according to the another kind of scheme of the utility model, it comprises: a printing opacity flexible member (transparent elasticelement), at least one light-emitting component (light-emitting element), a framework (frame), and a plurality of key bodies (key body).
Wherein, the bottom of this printing opacity flexible member has a plurality of leaded light micro-structurals to be formed, and the top of this printing opacity flexible member has a plurality of projection cube structures (protrusionstructure) that correspond to this leaded light micro-structural; This at least one light-emitting component is arranged on a side of this printing opacity flexible member; This framework has a plurality of open-works, and this framework is arranged on this printing opacity flexible member to expose this projection cube structure; And this key body is arranged at respectively on this projection cube structure, and each key body has a plurality of transmittance sections (transparent portion).
Whereby, when this at least one light-emitting component throwed a light source to this printing opacity flexible member, this printing opacity flexible member was upwards guided this light source by this leaded light micro-structural, so that this light source penetrates this transmittance section of this key body.
Specifically, the utility model provides a kind of ultra-thin light guide key module of side direction light-projecting type, and its characteristics are, comprising: a printing opacity flexible member, and its bottom has a plurality of leaded light micro-structurals; At least one light-emitting component, it is arranged on a side of this printing opacity flexible member, and when this at least one light-emitting component throwed a light source to this printing opacity flexible member, this printing opacity flexible member was upwards guided this light source by this leaded light micro-structural.
Above-mentioned ultra-thin light guide key module, its characteristics are, also comprise: display layer, it is arranged at the upper end of this printing opacity flexible member, and this display layer has a plurality of transmittance sections; And the elasticity packed layer, it is arranged between this printing opacity flexible member and this display layer.
Above-mentioned ultra-thin light guide key module, its characteristics are, also comprise: a plurality of projection cube structures, be arranged at the top of this printing opacity flexible member, corresponding with this leaded light micro-structural; One framework, it has a plurality of open-works, and this framework is arranged on this printing opacity flexible member and exposes this projection cube structure; And a plurality of key bodies, it is arranged at respectively on this projection cube structure, and each key body has a plurality of transmittance sections.
Above-mentioned ultra-thin light guide key module, its characteristics are that this printing opacity flexible member is transparent rubber material pieces or transparent plastic material spare.
Above-mentioned ultra-thin light guide key module, its characteristics are that each leaded light micro-structural has the projection of a plurality of grooves that set to the concave and/or a plurality of outside protrusions.
Above-mentioned ultra-thin light guide key module, its characteristics are that each leaded light micro-structural is located at this first micro-structural second micro-structural on every side by one first micro-structural and a ring to be formed, and the thickness of this first micro-structural is bigger than this second micro-structural.
Above-mentioned ultra-thin light guide key module, its characteristics are that this at least one light-emitting component is a light-emitting diode, and perhaps this at least one light-emitting component is made up of a plurality of light-emitting diode.
Above-mentioned ultra-thin light guide key module, its characteristics are, this at least one light-emitting component comprises a light-emitting diode and a transparent light guide line around the side of this printing opacity flexible member, and two end opposite of this transparent light guide line are connected to the two ends of this light-emitting diode, and wherein this transparent light guide line is an optical fiber spare.
Above-mentioned ultra-thin light guide key module, its characteristics are that this display layer is sheet metal or plastic tab.
Above-mentioned ultra-thin light guide key module, its characteristics are that this elasticity packed layer is a thermoplastic elastomer (TPE).
Effect of the present utility model, be that the leaded light micro-structural directly is incorporated into key module structure, therefore reduce the use amount of light-emitting diode and reduce the loss of power supply, and then minimizing charging times, and the increase battery life, moreover, owing to do not need to use other individual component to work as light guide structure, can reduce the thickness of key-press module, and volume production thickness is lower than 1mm and tool light-guiding function.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Fig. 1 is the first embodiment generalized section of the ultra-thin light guide key module of the utility model side direction light-projecting type;
Fig. 2 is the second embodiment generalized section of the ultra-thin light guide key module of the utility model side direction light-projecting type;
Fig. 3 is the schematic side view of another kind of leaded light micro-structural among the utility model first embodiment;
Fig. 4 is the schematic side view of another leaded light micro-structural among the utility model first embodiment;
Fig. 5 is the schematic diagram of first kind of relative position of the utility model printing opacity flexible member and light-emitting component; And
Fig. 6 is the schematic diagram of second kind of relative position of the utility model printing opacity flexible member and light-emitting component.
Wherein, Reference numeral:
1,1 ' printing opacity flexible member
10,10 ', 10a, 10b leaded light micro-structural
11 ' projection cube structure
100,100 ', 100b groove
101a, 101b projection
10A, 10A ' first micro-structural
10B, 10B ' second micro-structural
2,2 ' light-emitting component
3 display layers
30 transmittance sections
3 ' key body
30 ' transmittance section
4 elasticity packed layers
4 ' framework
40 ' open-work
5,5 ' circuit board
H, h, H ', h ' thickness
1a, 1b, 1c, 1d printing opacity flexible member
2c, 2d light-emitting component
The 20d light-emitting diode
21d transparent light guide line
Embodiment
See also shown in Figure 1ly, it is the first embodiment generalized section of the ultra-thin light guide key module of the utility model side direction light-projecting type (side light-projectingtype).By among the figure as can be known, the ultra-thin light guide key module of a kind of side direction light-projecting type provided by the utility model (side light-projecting type), it comprises: a printing opacity flexible member (transparent elastic element) 1, two light-emitting component (light-emitting element) 2, one display layer (show layer) 3, an and elasticity packed layer (elastic fill layer) 4.
Wherein, this printing opacity flexible member 1 can be made by transparent rubber material (transparent rubbermaterial) or transparent plastic material (transparent plastic material).Moreover the bottom of this printing opacity flexible member 1 has a plurality of leaded light micro-structurals (light-guidingmicrostructure) 10, and each leaded light micro-structural 10 has a plurality of grooves that set to the concave (concave groove) 100.In addition, each leaded light micro-structural 10 is located at this first micro-structural 10A second micro-structural (secondmicrostructure) 10B on every side by one first micro-structural (firstmicrostructure) 10A and a ring to be formed, and the thickness H of this first micro-structural 10A is bigger than the thickness h of this second micro-structural 10B.
Moreover these two light-emitting components 2 are separately positioned on a side of this printing opacity flexible member 1, and this light-emitting component 2 can be a light-emitting diode (Light Emitting Diode, LED).
In addition, this display layer 3 is arranged at the upper end of this printing opacity flexible member 1, and this display layer 3 has a plurality of transmittance sections (transparent portion) 30.In addition, this display layer 3 can be sheet metal (metalsheet) or plastic tab (plastic sheet), and pattern, symbol, literal or numeral that this transmittance section 30 is printing opacity (transparent) (perhaps, this transmittance section 30 also can be pattern, symbol, literal or the numeral of basket sky (empty)).
In addition, this elasticity packed layer 4 is arranged between this printing opacity flexible member 1 and this display layer 3, and this elasticity packed layer 4 can be thermoplastic elastomer (TPE) (Thermoplastic Elastomer, TPE), for example: thermoplastic matrix's amine polyformate (Thermoplastic Polyurethane, TPU) film.Moreover the utility model further comprises: one is arranged on the circuit board 5 of this printing opacity flexible member 1 bottom.
Whereby, when these two light-emitting components 2 throw a light source (as shown by arrows) to this printing opacity flexible member 1 respectively, this printing opacity flexible member 1 is upwards guided this light source by this leaded light micro-structural 10, so that this light source penetrates this transmittance section 30 of this elasticity packed layer 4 and this display layer 3.
See also shown in Figure 2ly, it is the generalized section of second embodiment of the ultra-thin light guide key module of the utility model side direction light-projecting type (side light-projectingtype).By among the figure as can be known, the ultra-thin light guide key module of a kind of side direction light-projecting type provided by the utility model (side light-projecting type), it comprises: a printing opacity flexible member (transparent elastic element) 1 ', two light-emitting component (light-emitting element) 2 ', a plurality of key body (key body) 3 ', an and framework (frame) 4 '.
Wherein, this printing opacity flexible member 1 ' can be made by transparent rubber material (transparent rubbermaterial) or transparent plastic material (transparent plastic material).Moreover, the bottom of this printing opacity flexible member 1 ' has a plurality of leaded light micro-structurals (light-guidingmicrostructure) 10 ', and the top of this printing opacity flexible member 1 ' has a plurality of projection cube structures (protrusion structure) 11 ' that correspond to this leaded light micro-structural 10 ', and wherein each leaded light micro-structural 10 ' has a plurality of grooves that set to the concave (concave groove) 100 '.In addition, each leaded light micro-structural 10 ' is located at this first micro-structural 10A ' second micro-structural (second microstructure) 10B ' on every side by one first micro-structural (first microstructure) 10A ' and a ring to be formed, and the thickness H ' of this first micro-structural 10A ' is than the thickness h of this second micro-structural 10B ' ' big.
Moreover identical with first embodiment, these two light-emitting components 2 ' are separately positioned on a side of this printing opacity flexible member 1 ', and this light-emitting component 2 ' can be a light-emitting diode (Light Emitting Diode, LED).
In addition, this key body 3 ' is arranged at respectively on this projection cube structure 11 ', and each key body 3 ' has a plurality of transmittance sections (transparent portion) 30 '.In addition, this key body 3 ' can be sheet metal (metal sheet) or plastic tab (plastic sheet), and pattern, symbol, literal or numeral that this transmittance section 30 ' is printing opacity (transparent) (perhaps, this transmittance section 30 ' also can be pattern, symbol, literal or the numeral of basket sky (empty)).
In addition, this framework 4 ' can be sheet metal (metal sheet) or plastic tab (plasticsheet).Moreover this framework 4 ' has a plurality of open-works 40 ', and this framework 4 ' is arranged at this printing opacity flexible member 1 ' upward to expose this projection cube structure 11 '.Also promptly, the mode that this framework 4 ' passes this corresponding projection cube structure 11 ' by each open-work 40 ' is fitted in this printing opacity flexible member 1 ' and goes up and be positioned between this projection cube structure 11 ', to be used to strengthen the structural strength of this printing opacity flexible member 1 '.Moreover identical with first embodiment, the utility model further comprises: one is arranged on the circuit board 5 ' of this printing opacity flexible member 1 ' bottom.
Whereby, when this at least one light-emitting component 2 ' projection one light source (as shown by arrows) during to this printing opacity flexible member 1 ', this printing opacity flexible member 1 ' is upwards guided this light source by this leaded light micro-structural 10 ', so that this light source penetrates this transmittance section 30 ' of this key body 3 '.
See also shown in Figure 3ly, it is among the utility model first embodiment, the schematic side view of another kind of leaded light micro-structural.By among the figure as can be known, each leaded light micro-structural 10a of this printing opacity flexible member 1a has projection (projecting block) 101a of a plurality of outside protrusions.
See also shown in Figure 4ly, it is among the utility model first embodiment, the schematic side view of another leaded light micro-structural.By among the figure as can be known, each leaded light micro-structural 10b of this printing opacity flexible member 1b has projection (projectingblock) 101b of a plurality of grooves that set to the concave (concave groove) 100b and a plurality of outside protrusions.
In other words, with first embodiment, this leaded light micro-structural can be the staged micro-structural (step type microstructure) of any form (groove or projection) or Any shape (circle, triangle etc.).
See also shown in Figure 5ly, it is the schematic diagram of first kind of relative position of the utility model printing opacity flexible member and light-emitting component.By among the figure as can be known, two light-emitting component 2c can be arranged at the side at two diagonal angles of a printing opacity flexible member 1c, so that the light source (as shown by arrows) that these two light-emitting component 2c are projected can be sent to the every nook and cranny of this printing opacity flexible member 1c fifty-fifty, and make ultra-thin light guide key module of the present utility model can obtain best luminous efficiency.
See also shown in Figure 6ly, it is the schematic diagram of second kind of relative position of the utility model printing opacity flexible member and light-emitting component.By among the figure as can be known, one light-emitting component 2d comprises: a light-emitting diode (LED) 20d and transparent light guide line (transparentlight-guiding line) 21d around the side of this printing opacity flexible member 1d, and two end opposite of this transparent light guide line 21d are connected to the two ends of this light-emitting diode 20d.Wherein, this transparent light guide line 21d can be the lead of optical fiber (optical fiber) or any light-permeable.
Moreover according to user's demand, light-emitting component of the present utility model can be a light-emitting diode or is made up of a plurality of light-emitting diodes (LEDs).Moreover this light-emitting component also can be the combination of light-emitting diode and optical fiber.
In sum, the purpose of this utility model is: at the printing opacity flexible member of high light transmittance (for example: add the leaded light micro-structural rubber), utilize light-emitting component (for example: light-emitting diode) work as light source (non-in the past below rubber) again at the sidewall of this printing opacity flexible member, then in conjunction with original key-press module manufacturing process, can utilize less light source and the key-press module of high brightness and high uniformity can be arranged.
In addition, because the leaded light micro-structural directly is incorporated into key module structure, therefore reduces the use amount of light-emitting diode and reduce the loss of power supply, and then reduce charging times, and increase battery life.Moreover, owing to do not need to use other individual component to work as light guide structure, can reduce the thickness of key-press module, and volume production thickness is lower than 1mm and tool light-guiding function.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the utility model claim.

Claims (10)

1, a kind of ultra-thin light guide key module of side direction light-projecting type is characterized in that, comprising:
One printing opacity flexible member, its bottom has a plurality of leaded light micro-structurals;
At least one light-emitting component, it is arranged on a side of this printing opacity flexible member.
2, ultra-thin light guide key module according to claim 1 is characterized in that, also comprises:
One display layer, it is arranged at the upper end of this printing opacity flexible member, and this display layer has a plurality of transmittance sections; And
One elasticity packed layer, it is arranged between this printing opacity flexible member and this display layer.
3, ultra-thin light guide key module according to claim 1 is characterized in that, also comprises:
A plurality of projection cube structures are arranged at the top of this printing opacity flexible member, and are corresponding with this leaded light micro-structural;
One framework, it has a plurality of open-works, and this framework is arranged on this printing opacity flexible member and exposes this projection cube structure; And
A plurality of key bodies, it is arranged at respectively on this projection cube structure, and each key body has a plurality of transmittance sections.
4, according to claim 1,2 or 3 described ultra-thin light guide key modules, it is characterized in that this printing opacity flexible member is transparent rubber material pieces or transparent plastic material spare.
5, according to claim 1,2 or 3 described ultra-thin light guide key modules, it is characterized in that each leaded light micro-structural has the projection of a plurality of grooves that set to the concave and/or a plurality of outside protrusions.
6, according to claim 1,2 or 3 described ultra-thin light guide key modules, it is characterized in that, each leaded light micro-structural is located at this first micro-structural second micro-structural on every side by one first micro-structural and a ring to be formed, and the thickness of this first micro-structural is bigger than this second micro-structural.
7, according to claim 1,2 or 3 described ultra-thin light guide key modules, it is characterized in that this at least one light-emitting component is a light-emitting diode, perhaps this at least one light-emitting component is made up of a plurality of light-emitting diode.
8, according to claim 1,2 or 3 described ultra-thin light guide key modules, it is characterized in that, this at least one light-emitting component comprises a light-emitting diode and a transparent light guide line around the side of this printing opacity flexible member, and two end opposite of this transparent light guide line are connected to the two ends of this light-emitting diode, and wherein this transparent light guide line is an optical fiber spare.
9, ultra-thin light guide key module according to claim 2 is characterized in that, this display layer is sheet metal or plastic tab.
10, ultra-thin light guide key module according to claim 2 is characterized in that, this elasticity packed layer is a thermoplastic elastomer (TPE).
CNU2006201394660U 2006-12-25 2006-12-25 Side projection ultra-thin light guiding key module Expired - Lifetime CN201004396Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102064032A (en) * 2011-01-21 2011-05-18 鸿富锦精密工业(深圳)有限公司 Button module and electronic device using same
CN102087924A (en) * 2009-12-03 2011-06-08 宏碁股份有限公司 Button device
CN101877285B (en) * 2009-04-30 2012-11-21 深圳富泰宏精密工业有限公司 Key and electronic device with same
CN101577186B (en) * 2008-05-09 2013-05-29 深圳富泰宏精密工业有限公司 Key and electronic device applying same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101577186B (en) * 2008-05-09 2013-05-29 深圳富泰宏精密工业有限公司 Key and electronic device applying same
CN101877285B (en) * 2009-04-30 2012-11-21 深圳富泰宏精密工业有限公司 Key and electronic device with same
CN102087924A (en) * 2009-12-03 2011-06-08 宏碁股份有限公司 Button device
CN102064032A (en) * 2011-01-21 2011-05-18 鸿富锦精密工业(深圳)有限公司 Button module and electronic device using same

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CX01 Expiry of patent term

Granted publication date: 20080109

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