CN101908426A - Inductive key and electronic device with same - Google Patents
Inductive key and electronic device with same Download PDFInfo
- Publication number
- CN101908426A CN101908426A CN2010102498846A CN201010249884A CN101908426A CN 101908426 A CN101908426 A CN 101908426A CN 2010102498846 A CN2010102498846 A CN 2010102498846A CN 201010249884 A CN201010249884 A CN 201010249884A CN 101908426 A CN101908426 A CN 101908426A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide sheet
- light source
- light
- described light
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention relates to an inductive key which comprises an inductive key board and a light source arranged on the inductive key board. The front face of the inductive key board is provided with a non-inductive area and a plurality of inductive areas; the light source protrudes out of the front face of the inductive key board, a light guide film is arranged on the front face of the inductive key board, and the light guide film is provided with a reflection pit area. Light rays emitted by the light source are projected to the light guide film along the direction parallel to the light guide film, and the direction of propagation is changed by the reflection pit area. The invention also provides an electronic device with the inductive key. The inductive key and the electronic device with the same provided by the invention can realize diversified light shaping effects without arranging light holes in the inductive key board, so that the inductive key is easily beneficial to being thinned, and the cost is reduced.
Description
Technical field
The present invention is particularly to a kind of electronic equipment that has the induced key of luminous modeling effect and have induced key relevant for the induced key field.
Background technology
Induced key has been widely used in the various electronic equipments such as TV, display, computer notebook, palm assistance, audio amplifier, lamp box, laser disc player, instrument and has realized function selecting.Ray structure is set on induced key, can provides indicative function, so that distinguish key area and non-key area for the user.
Along with electronic product towards thinning, gently change development, for example panel TV is particularly in the slim electronic product such as ultra-thin television, its positive function button can more employings has the induced key of ray structure, the lamp light styling variation of ray structure, can further play the effect of decoration, improve the market competitiveness of electronic product.Accordingly, in order to adapt to the ultra-thin requirement of slim electronic product, induced key also will satisfy thin thickness, corresponding requirements that width is little, like this slim product originally with regard to limited space in, should realize induced key thinning, narrowing and making to take up room reduces, realize the variation of luminous moulding again, just proposed certain difficult problem for the dealer.
As shown in Figure 1, 2, be a kind of existing backlight formula induced key, at induction type keypad 1 (pcb board) back side several led light sources 2 are set, the position of corresponding led light source 2 is offered loophole 3 respectively on induction type keypad 1, periphery at each loophole 3 in induction type keypad 1 front is an induction region 4, and the zone of the front of induction type keypad 1 except that induction region 4 is non-induction region 5.Push induction region 4 and can trigger corresponding selection function, light LED lamp 2 simultaneously, the light of LED lamp 2 can be passed to the front of electronic product through the loophole 3 of induction type keypad 1, realizes luminous indication effect.Though this kind induced key can be realized function selecting and illumination effect, but there is following desirable not to the utmost part:
One, for reaching the illumination effect of induced key, need offer loophole 3 on induction type keypad 1, be transmitted through the front of product for the light of LED lamp 2, this can destroy the structural strength of the circuit layout of induction type keypad 1 and induction type keypad 1 itself.
Two, illumination effect makes light pass loophole 3 realizations, like this under the certain situation of induced key size, want to change luminous moulding and for example increase the area of light-emitting zone by increasing loophole 3, just must dwindle the area of induction region 4, can sacrifice the sensitivity of induced key, based on this restriction, existing induced key lamp light styling is single, is not easy to realize the variation of lamp light styling.
Three, for each luminous point on the induction ammonium key, all need to be provided with a LED lamp 2, the use amount of LED lamp 2 is big, and offers complexity and machining period that corresponding loophole 3 has also increased technology on induction type keypad 1, and the cost of induced key is higher.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of induced key and has the electronic equipment of induced key, loophole needn't be on the induction type keypad, offered and diversified light indication modeling effect can be realized, and be beneficial to the slimming that realizes induced key, reduce manufacturing cost.
The invention provides a kind of induced key, include induction type keypad and the light source of being located on the described induction type keypad, be provided with non-induction region and several induction regions in the front of described induction type keypad; Described light source protrudes from the described front of described induction type keypad, described front at described induction type keypad is provided with light guide sheet, described light guide sheet is provided with the refraction pit area, and the light that described light source sends is incident upon in the described light guide sheet and by the refraction pit area along the direction parallel with light guide sheet and changes the direction of propagation.
The present invention also provides an electronic equipment with induced key, comprises casing and aforementioned induced key, and described induced key is positioned at described casing inside, and the induction region of the corresponding described induction type keypad of described casing is provided with the function button district.
According to such scheme, the present invention is significant with respect to the effect of existing structure:
One, induced key of the present invention is for realizing illumination effect, needn't on the induction type keypad, offer loophole, light source, light guide sheet directly can be sticked in the front of induction type keypad, the light that light source sends is incident upon the refraction pit area rear of light guide sheet to changing, look thereby can be seen by the user, can realize the positive lighting of induction type keypad, and induction region remains intact free of losses.The present invention can realize various pilot light moulding by the refraction pit area of change light guide sheet and the casing of electronic product, be not subjected on the induction type keypad, to be provided with the restriction of loophole, light-emitting zone can be covered with whole induction region in the front of induction type keypad, can realize lamp light styling demand arbitrarily such as some light or regional evenly light, light-emitting zone can be arranged arbitrarily at the positive of induction type keypad, be easy to realize the variation of lamp light styling, effectively increase decorate properties.
Two, induced key of the present invention can be controlled the thickness of whole induced key by the thickness that the control light source protrudes from the height in induction type keypad front and light guide sheet, is easy to make slim induced key.
Three, can realize a plurality of light-emitting zones in conjunction with the refraction pit area on the light guide sheet by the light source of minority, needn't a light source be set corresponding each luminous point respectively, can reduce the usage quantity of light source, and light source and light guide sheet are arranged on the manufacturing process in induction type keypad front, for on the induction type keypad, offering loophole, can significantly simplify technology, reduce work hours, reduce cost.
Description of drawings
Fig. 1 is the schematic diagram of existing induced key.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the three-dimensional exploded view of one of embodiment of the present invention 1 induced key execution mode.
Fig. 4 is the schematic diagram of one of light guide sheet execution mode in the embodiment of the present invention 1.
Fig. 5 is two a schematic diagram of light guide sheet execution mode in the embodiment of the present invention 1.
Fig. 6 is the end view of one of induced key execution mode among Fig. 3.
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is two a vertical view of embodiment of the present invention 1 induced key execution mode.
Fig. 9 is three a vertical view of embodiment of the present invention 1 induced key execution mode.
Figure 10 is four a vertical view of embodiment of the present invention 1 induced key execution mode.
Figure 11 is five a vertical view of embodiment of the present invention 1 induced key execution mode.
Figure 12 is the three-dimensional exploded view of one of embodiment of the present invention 2 electronic equipment execution modes.
Figure 13 is the front view of Figure 12.
Figure 14 is two a three-dimensional exploded view of embodiment of the present invention 2 electronic equipment execution modes.
Embodiment
As shown in Figure 3, embodiment of the present invention provides a kind of induced key, for example can be widely used in TV and particularly realize function selecting in the various electronic equipment such as panel TV and ultra-thin television, display, computer notebook, palm assistance, audio amplifier, lamp box, laser disc player, instrument.Induced key of the present invention can be selected for use for producer as modularization intermediate products independently, and the casing that pastes electronic product for example on the television cabin 7, is finished the assembling of complete machine.
The induced key that embodiment of the present invention provides, comprise induction type keypad 1 and several light sources 2 of being located on the induction type keypad 1, induction type keypad 1 can be selected for use but be not limited to common capacitive sensing type, light source 2 is two in the execution mode of Fig. 3, light source 2 is preferably but not limited to the LED lamp, can emit beam and to select for use, be provided with several induction regions 4 in the front of induction type keypad 1, Any shape such as induction region 4 can be rectangular, circle, the part of the front of induction type keypad 1 except that induction region 4 is non-induction region 5; Light source 2 is provided with in the mode in the front that protrudes from induction type keypad 1, for example light source 2 can stick on the front of induction type keypad 1, also can on induction type keypad 1, shrinkage pool be set, light source 2 is embedded in the thickness that is beneficial to reduce induced key in the shrinkage pool, can guarantee that light source 2 all can adopt with respect to the set-up mode that induction type keypad 1 front is the protrusion state, in the front of induction type keypad 1 light guide sheet 6 is set, for example by pasting, buckle or any way such as tie in are arranged on light guide sheet 6 in the front of induction type keypad 1, on light guide sheet 6, be provided with refraction pit area 61, the user touches the function button district 71 on the television cabin 7, promptly can trigger induction region 4 actions on the induction type keypad 1, put bright light source 2 simultaneously, the light that light source 2 sends is incident upon in light guide sheet 6 along the direction that is parallel to light guide sheet 6, when light arrives refraction pit area 61, the light ray propagation direction is changed, thereby the user can see and look the indication light efficiency by refraction principle.
The induced key that embodiment of the present invention provides, light source 2, light guide sheet 6 directly can be sticked in the front of induction type keypad 1, realize the positive lighting of induction type keypad 1, light-emitting zone can be arranged arbitrarily at the positive of induction type keypad 1, can satisfy any lamp light styling demands such as the even light of a light or zone, the lamp light styling variation promotes decorate properties.And the induction region 4 of induction type keypad 1 remains intact harmless, does not destroy the circuit layout and the structural strength of induction type keypad 1.Can control simultaneously the thickness of whole induced key by the thickness that control light source 2 protrudes from the height in induction type keypad 1 front and light guide sheet 6, be easy to make slim induced key.The present invention only cooperates refraction pit area 61 on the light guide sheet 6 just can realize on the television cabin 7 illumination effect in totally seven keypress function districts 71 by two light sources 2 or even light source in addition, the usage quantity of light source 2 reduces, and light source 2 and light guide sheet 6 are arranged on induction type keypad 1 front, the characteristics of have remarkable simplification technology, reducing work hours can reduce the cost of induced key.
Shown in Fig. 4,5, in embodiments of the present invention, light guide sheet 6 is the water white transparency sheet material, can make by for example polycarbonate (PC), poly-methyl acrylate (PMMA) etc., and the conductivity height, light loss is little.The material of the high light-conductive rate that other is transparent also can be selected for use.The thickness of light guide sheet 6 is generally thinner, and thickness is 0.25～0.38mm, and the thickness of light guide sheet 6 preferably is not more than the height that light source 2 protrudes from induction type keypad 1 front, sticks on the front of induction type keypad 1 by double faced adhesive tape, to guarantee the slimming of whole button.
In embodiments of the present invention, the refraction pit area 61 on the light guide sheet 6 is made of a plurality of spherical crown concave points 64, and spherical crown concave point 64 can be arranged on the positive adjacent back side of light guide sheet 6 and induction type keypad 1, also can be located at the front of light guide sheet 6.Rule of thumb, refraction effect is more satisfactory during the diameter value 80um of spherical crown concave point 64, the too little brightness of concave point diameter is not enough, the too big brightness irregularities of diameter, can be according to the luminous moulding demand of reality, the parameters such as diameter, density and the concave point degree of depth of light-emitting zone area specific design spherical crown concave point 64, be not limited to 64 1 kinds of forms of spherical crown concave point in the present invention, other for example is the effect that taper concave point, cylinder concave point etc. also have refracted ray, also can select for use.
As shown in Figure 4, in the preferred embodiment of the present invention, the refraction pit area 61 of light guide sheet 6 is one, is covered with the back side of whole light guide sheet 6, so that refraction pit area 61 can cover whole induction regions 4.As shown in Figure 5, in another embodiment, it is a plurality of can making the refraction pit area 61 on the light guide sheet 6, corresponding respectively each induction region 4 that covers the front of induction type keypad 1.The base material of television cabin 7 can be water white transparency, light tight after the thermoprint of surface, make the wire frame and the character place in keypress function district 71 carve hollow out and form the hollow out mark part, light penetrates out from these hollow out mark parts, just can make the keypress function district 71 local printing opacities of television cabin 7.Be understandable that, if television cabin 7 is transparent, the layout of the spherical crown concave point 64 of refraction pit area 61 that can be by changing light guide sheet 6 realizes lamp light styling, a plurality of concave points 64 are arranged according to the wire frame in keypress function district 71 and the moulding of character, so just can directly see and look corresponding lamp light styling, lamp light styling is variation more.
Shown in Fig. 6,7, in an embodiment of the invention, light source 2 preferred paster thin-type LED lamps are sticked in the non-induction region 5 in the front of induction type keypad 1.The thickness of the paster thin-type LED lamp of recommending is less than 0.8mm, and for example can select thickness for use is 0.8mm or two kinds of specifications of 0.2mm, realizes ultra-thinization of induced key.
In the preferred embodiment of the present invention, light that light source 2 sends is incident upon in the light guide sheet 6 from a side of light guide sheet 6, for example make light source 2 be positioned at the side of light guide sheet 6, light is incident upon in the light guide sheet 6 from the side 62 of light guide sheet 6.The preferred single face emission type of paster thin-type LED lamp, the side 62 that makes its light-emitting area and light guide sheet 6 is near preferably contact, to reduce light loss, raising brightness.One preferred embodiment in, induction type keypad 1 and light guide sheet 6 all are the rectangle that comprises four sides.Light source 2 is arranged along at least one side of light guide sheet 6 in the non-induction region 5 in the front of induction type keypad 1.In the execution mode as shown in Figure 7, two light sources 2 are arranged along the minor face of light guide sheet 6.In the execution mode as shown in Figure 8, light source 2 is four, and four light sources 2 evenly arrange along two minor faces of light guide sheet 6, Yi Bian arrange two, arranges that the light path that light source 2 exists is far away, the problem of luminance shortage Yi Bian can solve in light guide sheet 6.In the execution mode as shown in Figure 9, a plurality of light sources 2 arrange that along a long limit of light guide sheet 6 light path of light source 2 is shorter, can improve brightness, but light source 2 quantity are many relatively.In the execution mode as shown in figure 10, a plurality of light sources 2 are arranged along two minor faces and a long limit of light guide sheet 6.Certainly, when square, can consider around light guide sheet 6, to arrange light source 2 that luminosity and light-emitting zone to realize being scheduled to no longer provide accompanying drawing in light guide sheet 6.
In the execution mode shown in Fig. 8,9,10, further be provided with light source and hold breach 63 on light guide sheet 6, light source 2 is positioned at light source and holds breach 63, and the thickness of light source 2 and light guide sheet 6 needn't superpose like this, helps the slimming of induced key.Light source holds breach 63 can be located at the edge of light guide sheet 6 and be uncovered shape, holds breach 63 as the light source of the left side and top among Fig. 8,9,10 and promptly is uncovered shape; Light source holds the through-hole form that breach 63 also can be the girth sealing of being located in light guide sheet 6 main bodys, holds breach 63 as the light source on the right among Fig. 8,10 and promptly is through-hole form.
In addition, all inequality with aforementioned embodiments, in an embodiment of the invention, light source 2 also is not limited to light and is incident upon in the light guide sheet 6 along a direction from a side, in the execution mode as shown in figure 11, offer light source at the middle part of light guide sheet 6 main bodys and hold breach 63, make light source 2 be contained in light source and hold in the breach 63, thus light from the middle part of light guide sheet 6 to around emission, can reach the lamp light styling effect of expection equally, also can take into account light path in theory, reduce the light source usage quantity.
Shown in Figure 12,13, a kind of electronic equipment that comprises the induced key in the execution mode 1 is provided in this execution mode, for example thin flat TV, ultra-thin television, display, computer notebook, palm assistance, audio amplifier, lamp box, laser disc player or instrument or the like, other electronic equipment that need have induced key also should be contained in the present embodiment.In this execution mode, be that example is described,, therefore all no longer describe for other existing parts of electronic equipment because of the present invention relates to the improvement of induced key with the ultra-thin television.
The electronic equipment with induced key that embodiment of the present invention provides includes television cabin 7 and induced key 8, and induced key 8 is positioned at casing 7 inside.The base material of television cabin 7 can be water white transparency, and is light tight after the surperficial thermoprint, is provided with function button district 71 at the induction region 4 of the induction type keypad 1 of television cabin 7 corresponding induced keys 8.In one embodiment, make the wire frame and the character place engraving hollow out in keypress function district 71 form the hollow out mark part, light penetrates out from these hollow out mark parts, just can make the keypress function district 71 local printing opacities of television cabin, thereby moulding realizes different bulb modeling effects to wire frame that can be by changing the keypress function district with character.Be understandable that, when the function button district 71 of television cabin 7 is pellucidity, can change, realize different lamp light styling effects by lamp light styling to induced key 8.
As shown in figure 12, induced key 8 comprises induction type keypad 1 and several light sources 2 of being located on the induction type keypad 1, induction type keypad 1 can be selected for use but be not limited to common capacitive sensing type, light source 2 is two in the execution mode of Figure 12, light source 2 is preferably but not limited to the LED lamp, can emit beam and to select for use, be provided with several induction regions 4 in the front of induction type keypad 1, Any shape such as induction region 4 can be rectangular, circle, the part of the front of induction type keypad 1 except that induction region 4 is non-induction region 5; Light source 2 is provided with in the mode in the front that protrudes from induction type keypad 1, for example light source 2 can stick on the front of induction type keypad 1, also can on induction type keypad 1, shrinkage pool be set, light source 2 is embedded in the thickness that is beneficial to reduce induced key in the shrinkage pool, can guarantee that light source 2 all can adopt with respect to the set-up mode that induction type keypad 1 is the protrusion state, in the front of induction type keypad 1 light guide sheet 6 is set, for example by pasting, buckle or any way such as tie in are arranged on light guide sheet 6 in the front of induction type keypad 1, thereby the light of light source 2 can be incident upon in the light guide sheet 6 along the direction parallel with light guide sheet 6, be provided with refraction pit area 61 in light guide sheet 6, the user touches the function button district 71 on the television cabin 7, promptly can trigger induction region 4 actions on the induction type keypad 1, put bright light source 2 simultaneously, the light that light source 2 sends is incident upon in light guide sheet 6 along the direction that is parallel to light guide sheet 6, by refraction principle light is changed when light arrives refraction pit area 61, the user is the considerable indication light efficiency of looking.
The induced key that embodiment of the present invention provides, light source 2, light guide sheet 6 directly can be sticked in the front of induction type keypad 1, realize the positive lighting of induction type keypad 1, light-emitting zone can be arranged arbitrarily at the positive of induction type keypad 1, can satisfy any lamp light styling demands such as the even light of a light or zone, the lamp light styling variation promotes decorate properties.And the induction region 4 of induction type keypad 1 remains intact harmless, does not destroy the circuit layout and the structural strength of induction type keypad 1.Can control simultaneously the thickness of whole induced key by the thickness that control light source 2 protrudes from the height in induction type keypad 1 front and light guide sheet 6, be easy to make slim induced key.The present invention only cooperates refraction pit area 61 on the light guide sheet 6 just can realize the illumination effect in totally seven keypress function districts 71 on the television cabin 7 by two light sources 2 or even light source in addition, the usage quantity of light source 2 reduces, and light source 2 and light guide sheet 6 are arranged on induction type keypad 1 front, the characteristics of have remarkable simplification technology, reducing work hours can reduce the cost of induced key.
Shown in Fig. 4,5, in embodiments of the present invention, light guide sheet 6 is the water white transparency sheet material, can make by for example polycarbonate (PC), poly-methyl acrylate (PMMA) etc., and the conductivity height, light loss is little.The material of the high light-conductive rate that other is transparent also can be selected for use.The thickness of light guide sheet 6 is generally thinner, and thickness is 0.25～0.38mm, and the thickness of light guide sheet 6 preferably is not more than the height that light source 2 protrudes from induction type keypad 1 front, sticks on the front of induction type keypad 1 by double faced adhesive tape, to guarantee the slimming of whole button.
In embodiments of the present invention, the refraction pit area 61 on the light guide sheet 6 is made of a plurality of spherical crown concave points 64, and spherical crown concave point 64 can be arranged on the positive adjacent back side of light guide sheet 6 and induction type keypad 1, also can be located at the front of light guide sheet 6.Rule of thumb, refraction effect is more satisfactory during the diameter value 80um of spherical crown concave point 64, the too little brightness of concave point diameter is not enough, the too big brightness irregularities of diameter, can be according to the luminous moulding demand of reality, the parameters such as diameter, density and the concave point degree of depth of light-emitting zone area specific design spherical crown concave point 64, be not limited to 64 1 kinds of forms of spherical crown concave point in the present invention, other for example is the effect that taper concave point, cylinder concave point etc. also have refracted ray, also can select for use.
As shown in Figure 4, in the preferred embodiment of the present invention, the refraction pit area 61 of light guide sheet 6 is one, the back side that is covered with whole light guide sheet 6, so that refraction pit area 61 can cover whole induction regions 4, the shape that this scheme is adapted to pass through the hollow out mark part of the wire frame in keypress function district 71 of change television cabin 7 and the formation of character hollow out realizes the change of lamp light styling shape.As shown in Figure 5, in another embodiment, it is a plurality of can making the refraction pit area 61 on the light guide sheet 6, corresponding respectively each induction region 4 that covers the front of induction type keypad 1, this scheme is suitable for realizing different lamp light styling shapes by induced key 8, the layout of the spherical crown concave point 64 of refraction pit area 61 that for example can be by changing light guide sheet 6 realizes lamp light styling, a plurality of concave points 64 are arranged according to the wire frame in keypress function district 71 and the moulding of character, so just can directly see and look corresponding lamp light styling, lamp light styling is variation more.
Shown in Fig. 6,7, in an embodiment of the invention, light source 2 preferred paster thin-type LED lamps are sticked in the non-induction region 5 in the front of induction type keypad 1.The thickness of the paster thin-type LED lamp of recommending is less than 0.8mm, and for example can select thickness for use is 0.8mm or two kinds of specifications of 0.2mm, realizes ultra-thinization of induced key.
In the preferred embodiment of the present invention, light that light source 2 sends is incident upon in the light guide sheet 6 from a side of light guide sheet 6, for example make light source 2 be positioned at the side of light guide sheet 6, light is incident upon in the light guide sheet 6 from the side 62 of light guide sheet 6.The preferred single face emission type of paster thin-type LED lamp, the side 62 that makes its light-emitting area and light guide sheet 6 is near preferably contact, to reduce light loss, raising brightness.One preferred embodiment in, induction type keypad 1 and light guide sheet 6 all are the rectangle that comprises four sides.Light source 2 is arranged along at least one side of light guide sheet 6 in the non-induction region 5 in the front of induction type keypad 1.In the execution mode as shown in Figure 7, two light sources 2 are arranged along the minor face of light guide sheet 6.In the execution mode as shown in Figure 8, light source 2 is four, and four light sources 2 evenly arrange along two minor faces of light guide sheet 6, Yi Bian arrange two, arranges that the light path that light source 2 exists is far away, the problem of luminance shortage Yi Bian can solve in light guide sheet 6.In the execution mode as shown in Figure 9, a plurality of light sources 2 arrange that along a long limit of light guide sheet 6 light path of light source 2 is shorter, can improve brightness, but light source 2 quantity are many relatively.In the preferred implementation shown in Figure 10,14, a plurality of light sources 2 are arranged along two minor faces and a long limit of light guide sheet 6.Certainly, when square, can consider around light guide sheet 6, to arrange light source 2 that luminosity and light-emitting zone to realize being scheduled to no longer provide accompanying drawing in light guide sheet 6.
In the execution mode shown in Fig. 8,9,10,11,14, further be provided with light source and hold breach 63 on light guide sheet 6, light source 2 is positioned at light source and holds breach 63, and the thickness of light source 2 and light guide sheet 6 needn't superpose like this, helps the slimming of induced key.Light source holds breach 63 can be located at the edge of light guide sheet 6 and be uncovered shape, holds breach 63 as the light source of the left side and top among Fig. 8,9,10 and promptly is uncovered shape; Light source holds the through-hole form that breach 63 also can be the girth sealing of being located in light guide sheet 6 main bodys, holds breach 63 as the light source in the middle of the right and Figure 11 among Fig. 8,10 and promptly is through-hole form.
In addition, all inequality with aforementioned embodiments, in an embodiment of the invention, light source 2 also is not limited to light and is incident upon in the light guide sheet 6 along a direction from a side, in the execution mode as shown in figure 11, offer light source at the middle part of light guide sheet 6 main bodys and hold breach 63, make light source 2 be contained in light source and hold in the breach 63, thus light from the middle part of light guide sheet 6 to around emission, can reach the lamp light styling effect of expection equally, also can take into account light path in theory, reduce the light source usage quantity.
Shown in Fig. 3,4,5, the present invention also provides a kind of light guide sheet 6, the element that light guide sheet 6 can be used as induced key sells separately, be assembled into induced key with light source 2, induction type keypad 1 again, be widely used in for example carrying out lamp light styling in thin flat TV, ultra-thin television, display, computer notebook, palm assistance, audio amplifier, lamp box, laser disc player or the meter electronics product.In addition, light guide sheet 6 provided by the invention also can be made a kind of lamp light styling ornamental strip, provides light by external light source 2, promptly can realize corresponding lamp light styling, being applied to except that aforementioned various electronic equipments other needs the occasion of lamp light styling, for example advertisement Graphic Panel or the like.
Shown in Fig. 4,5, the light guide sheet 6 that present embodiment provides comprises the light guide sheet main body, be provided with refraction pit area 61 on the surface of light guide sheet main body, light that external light source 2 sends is incident upon in the light guide sheet main body and by refraction pit area 61 along the direction parallel with light guide sheet 6 and changes the directions of propagation, looks thereby can be observed by the people.Adopt the light guide sheet of present embodiment to constitute induced key for 6 groups, external light source 2, light guide sheet 6 directly can be sticked in the front of induction type keypad 1, realize the positive lighting of induction type keypad 1, light-emitting zone can be arranged arbitrarily at the positive of induction type keypad 1, can satisfy any lamp light styling demands such as the even light of a light or zone, the lamp light styling variation promotes decorate properties.And the induction region 4 of induction type keypad 1 remains intact harmless, does not destroy the circuit layout and the structural strength of induction type keypad 1.Can control simultaneously the thickness of whole induced key by the thickness that control light source 2 protrudes from the height in induction type keypad 1 front and light guide sheet 6, be easy to make slim induced key.Can cooperate the refraction pit area 61 on the light guide sheet 6 to realize the multiple spot illumination effect in a plurality of keypress functions district 71 by the light source 2 of minority in addition, the usage quantity of light source 2 reduces, and light source 2 and light guide sheet 6 are arranged on induction type keypad 1 front, the characteristics of have remarkable simplification technology, reducing work hours can reduce the cost of induced key.
Shown in Fig. 4,5, in embodiments of the present invention, light guide sheet 6 is the water white transparency sheet material, can make by for example polycarbonate (PC), poly-methyl acrylate (PMMA) etc., and the conductivity height, light loss is little.
In embodiments of the present invention, the refraction pit area 61 on the light guide sheet 6 is made of a plurality of spherical crown concave points 64, and spherical crown concave point 64 can be arranged on the positive adjacent back side of light guide sheet 6 and induction type keypad 1, also can be located at the front of light guide sheet 6.Rule of thumb, refraction effect is more satisfactory during the diameter value 80um of spherical crown concave point 64, the too little brightness of concave point diameter is not enough, the too big brightness irregularities of diameter, can be according to the luminous moulding demand of reality, the parameters such as diameter, density and the concave point degree of depth of light-emitting zone area specific design spherical crown concave point 64, the layout of the spherical crown concave point 64 of refraction pit area 61 that also can be by changing light guide sheet 6 realizes lamp light styling.Be not limited to 64 1 kinds of forms of spherical crown concave point in the present invention, other for example is the effect that taper concave point, cylinder concave point etc. also have refracted ray, also can select for use.
As shown in Figure 4, in the preferred embodiment of the present invention, the refraction pit area 61 of light guide sheet 6 is one, is covered with the back side of whole light guide sheet 6, so that refraction pit area 61 can cover whole induction regions 4.As shown in Figure 5, in another embodiment, it is a plurality of can making the refraction pit area 61 on the light guide sheet 6, corresponding respectively each induction region 4 that covers the front of induction type keypad 1, when the position that television cabin 7 is provided with keypress function district 71 is pellucidity, the spherical crown concave point 64 of refraction pit area 61 is arranged according to the wire frame of corresponding key functional areas 71 on the television structure 7 and the moulding of character, just can directly be seen and look corresponding lamp light styling, lamp light styling is variation more.
In the execution mode shown in Fig. 8,9,10,11, further on light guide sheet 6, be provided with light source and hold breach 63, be used to hold external light source 2.The thickness of light source 2 and light guide sheet 6 needn't superpose like this, helps the slimming of induced key.Light source holds breach 63 can be located at the edge of light guide sheet 6 and be uncovered shape, holds breach 63 as the light source of the left side and top among Fig. 8,9,10 and promptly is uncovered shape; Light source holds the through-hole form that breach 63 also can be the girth sealing of being located in light guide sheet 6 main bodys, holds breach 63 as the light source in the middle of the right and Figure 11 among Fig. 8,10 and promptly is through-hole form.
But the above; it only is the specific embodiment of the present invention; when not limiting scope of the invention process with this; all equivalent variations and modifications of doing according to summary of the invention of the present invention; any other people on light guide sheet, be provided with the refraction pit area realize lamp light styling; or further use this light guide sheet and on the induction type keypad, realize positive lighting, all should belong to protection scope of the present invention.
Claims (11)
1. an induced key includes induction type keypad and the light source of being located on the described induction type keypad, is provided with non-induction region and several induction regions in the front of described induction type keypad; It is characterized in that: described light source protrudes from the described front of described induction type keypad, described front at described induction type keypad is provided with light guide sheet, described light guide sheet is provided with the refraction pit area, and the light that described light source sends is incident upon in the described light guide sheet and by the refraction pit area along the direction parallel with light guide sheet and changes the direction of propagation.
2. induced key according to claim 1 is characterized in that: described light is incident upon in the described light guide sheet by a side of described light guide sheet.
3. induced key according to claim 2, it is characterized in that: described induction type keypad and described light guide sheet all are the rectangle that comprises four sides, described light source is in the non-induction region in the front of induction type keypad, at least one side along light guide sheet arranges that described light is incident upon in the described light guide sheet by the direction of a side towards the side of subtend.
4. induced key according to claim 3 is characterized in that: described light source is arranged along a minor face of described light guide sheet; Perhaps described light source is arranged along two minor faces of described light guide sheet; Perhaps described light source is arranged along a long limit of described light guide sheet; Perhaps described light source is arranged along two minor faces and a long limit of described light guide sheet; Perhaps described light source is arranged around described light guide sheet.
5. induced key according to claim 3, it is characterized in that: described light source is the paster thin-type LED lamp of thickness less than the single face emission type of 0.8mm, described paster thin-type LED lamp is sticked at the non-induction region in the front of described induction type keypad, and contacts with described light guide sheet.
6. according to any described induced key in the claim 1～5, it is characterized in that: described light guide sheet sticks on the front of described induction type keypad, and covers described several induction regions.
7. induced key according to claim 6 is characterized in that: described refraction pit area is made of a plurality of spherical crown concave points, and described spherical crown concave point is arranged on light guide sheet and the positive adjacent back side described induction type keypad.
8. induced key according to claim 6 is characterized in that: the refraction pit area on the described light guide sheet is one, and a described refraction pit area covers described several induction regions; Refraction pit area on the perhaps described light guide sheet is a plurality of, corresponding respectively each induction region that covers the front of induction type keypad.
9. induced key according to claim 6 is characterized in that: described light guide sheet is provided with light source and holds breach, and described light source is positioned at described light source and holds breach.
10. electronic equipment with induced key, it is characterized in that: described electronic equipment comprises induced key any in casing and the claim 1～9, described induced key is positioned at described casing inside, and the induction region of the corresponding described induction type keypad of described casing is provided with the function button district.
11. the electronic equipment with induced key according to claim 10 is characterized in that: described function button district has the hollow out mark part, and the light that described light guide sheet reflects is transmitted by described hollow out mark part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102498846A CN101908426A (en) | 2010-08-09 | 2010-08-09 | Inductive key and electronic device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102498846A CN101908426A (en) | 2010-08-09 | 2010-08-09 | Inductive key and electronic device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101908426A true CN101908426A (en) | 2010-12-08 |
Family
ID=43263855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102498846A Pending CN101908426A (en) | 2010-08-09 | 2010-08-09 | Inductive key and electronic device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101908426A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018013303A (en) * | 2016-07-22 | 2018-01-25 | 日立アプライアンス株式会社 | refrigerator |
| JP2018013305A (en) * | 2016-07-22 | 2018-01-25 | 日立アプライアンス株式会社 | refrigerator |
| CN114496627A (en) * | 2020-10-27 | 2022-05-13 | 重庆达方电子有限公司 | Light-emitting touch keyboard and backlight module thereof |
| EP4056912A1 (en) * | 2021-03-08 | 2022-09-14 | BSH Hausgeräte GmbH | Indication apparatus, air hygiene apparatus, and household appliance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241205A (en) * | 2007-02-07 | 2008-08-13 | 毅嘉科技股份有限公司 | Light guide board light-guiding method and key structure using the light guide board |
| CN201117490Y (en) * | 2007-11-01 | 2008-09-17 | 广州松下空调器有限公司 | Household electrical appliance control panel |
| CN201185138Y (en) * | 2007-12-06 | 2009-01-21 | 盛泓企业有限公司 | Improvement of input structure of electronic device |
| CN101441946A (en) * | 2007-11-22 | 2009-05-27 | 群光电子股份有限公司 | Energy-saving luminous module, key-press structure and keyboard with the same |
| JP2009231173A (en) * | 2008-03-25 | 2009-10-08 | Sumitomo Electric Printed Circuit Inc | Wiring board module and electronic equipment |
| CN201383449Y (en) * | 2009-02-06 | 2010-01-13 | 朱平飞 | Luminous film keyswitch |
| JP2010092738A (en) * | 2008-10-08 | 2010-04-22 | Sumitomo Electric Printed Circuit Inc | Light guide sheet, wiring module, and electronic equipment |
| CN201796761U (en) * | 2010-08-09 | 2011-04-13 | 青岛海信电器股份有限公司 | Induced key and electronic equipment with same |
-
2010
- 2010-08-09 CN CN2010102498846A patent/CN101908426A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241205A (en) * | 2007-02-07 | 2008-08-13 | 毅嘉科技股份有限公司 | Light guide board light-guiding method and key structure using the light guide board |
| CN201117490Y (en) * | 2007-11-01 | 2008-09-17 | 广州松下空调器有限公司 | Household electrical appliance control panel |
| CN101441946A (en) * | 2007-11-22 | 2009-05-27 | 群光电子股份有限公司 | Energy-saving luminous module, key-press structure and keyboard with the same |
| CN201185138Y (en) * | 2007-12-06 | 2009-01-21 | 盛泓企业有限公司 | Improvement of input structure of electronic device |
| JP2009231173A (en) * | 2008-03-25 | 2009-10-08 | Sumitomo Electric Printed Circuit Inc | Wiring board module and electronic equipment |
| JP2010092738A (en) * | 2008-10-08 | 2010-04-22 | Sumitomo Electric Printed Circuit Inc | Light guide sheet, wiring module, and electronic equipment |
| CN201383449Y (en) * | 2009-02-06 | 2010-01-13 | 朱平飞 | Luminous film keyswitch |
| CN201796761U (en) * | 2010-08-09 | 2011-04-13 | 青岛海信电器股份有限公司 | Induced key and electronic equipment with same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018013303A (en) * | 2016-07-22 | 2018-01-25 | 日立アプライアンス株式会社 | refrigerator |
| JP2018013305A (en) * | 2016-07-22 | 2018-01-25 | 日立アプライアンス株式会社 | refrigerator |
| CN114496627A (en) * | 2020-10-27 | 2022-05-13 | 重庆达方电子有限公司 | Light-emitting touch keyboard and backlight module thereof |
| EP4056912A1 (en) * | 2021-03-08 | 2022-09-14 | BSH Hausgeräte GmbH | Indication apparatus, air hygiene apparatus, and household appliance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8488418B2 (en) | Timepiece with special aesthetic effects | |
| CN101256911A (en) | Luminous keyboard with light conducting plate | |
| US20040189604A1 (en) | Computer mouse with ornamental light source | |
| US20110296724A1 (en) | Electronic device with pattern-displaying function | |
| CN102884568A (en) | Display member and display device | |
| TW201432764A (en) | Illuminated keyboard and light-guide | |
| CN101886785A (en) | Light guide and adopt the backlight module of this light guide | |
| US20080192500A1 (en) | Terminal apparatus | |
| KR101494760B1 (en) | Covering Apparatus for Mobile Phone Having Display Panel | |
| CN101908426A (en) | Inductive key and electronic device with same | |
| CN110529770B (en) | Luminous shell | |
| CN201739960U (en) | Light guide part and backlight module adopting same | |
| CN201796761U (en) | Induced key and electronic equipment with same | |
| CN207947974U (en) | A kind of mobile terminal | |
| KR20080073504A (en) | A method manufacturing a back lighting structure of a mobile terminal, a back lighting structure of a mobile terminal and a mobile terminal having a back lighting structure | |
| TWI737430B (en) | Light-emitting component, method for making the same, and electronic device using the same | |
| KR101042919B1 (en) | Keypad assembly for mobile communication | |
| CN201256098Y (en) | Irradiancy keyboard having light conducting board | |
| TWI406021B (en) | Flexible light-guiding module with waterproof function | |
| JP5196661B2 (en) | Light guide and pushbutton switch member using the same | |
| TW202006767A (en) | Illuminating keyboard | |
| TWI781755B (en) | Mouse device | |
| CN110708411B (en) | Method for realizing regional display of light-emitting mobile phone shell | |
| CN203242543U (en) | Lighting keyboard | |
| CN213072754U (en) | Lid behind cell-phone with three-dimensional stereoeffect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101208 |