CN105118722A - Light emitting module and light emitting keyboard - Google Patents
Light emitting module and light emitting keyboard Download PDFInfo
- Publication number
- CN105118722A CN105118722A CN201510434281.6A CN201510434281A CN105118722A CN 105118722 A CN105118722 A CN 105118722A CN 201510434281 A CN201510434281 A CN 201510434281A CN 105118722 A CN105118722 A CN 105118722A
- Authority
- CN
- China
- Prior art keywords
- gummed portion
- guide plate
- face
- illuminating module
- light guide
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/056—Diffuser; Uneven surface
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/06—Reflector
Abstract
The invention relates to a light emitting module and a light emitting keyboard. The light emitting module comprises a circuit board, a light emitting unit, a transparent glue layer, a light guide plate, and a reflective layer. The light emitting unit is arranged on the circuit board, and has a light-out surface used to emit light. The transparent glue layer has a first gluing part and a second gluing part, the first gluing part has a first side and a second side which face each other, the second gluing part has a third side and a fourth side which face each other, the first side of the first gluing part is arranged on the circuit board, and the third side of the second gluing part is adhered to the light-out surface of the light emitting unit. The light guide plate has a light-in surface used to receive light transmitted via the second gluing part. The light-in surface faces the light-out surface of the light emitting unit, and the light-in surface of the light guide plate is adhered to the fourth side of the second gluing part. The reflective layer is arranged under the light guide plate, and the bottom side of the reflective layer is adhered to the second side of the first gluing part. The light-in surface of the light guide plate and the light-out surface of the light emitting unit are connected by the second gluing part, and therefore, the phenomenon of halo can be avoided.
Description
Technical field
The present invention relates to a kind of illuminating module and illuminated keyboard, in particular to a kind of reduce luminescence time the illuminating module of halation phenomenon that produces and illuminated keyboard.
Background technology
Refer to Fig. 1, it illustrates a kind of decomposing schematic representation of known illuminated keyboard.As shown in Figure 1, the composition of current illuminated keyboard 1, from top to bottom may comprise the component such as button group 20 and illuminating module 30, and wherein button group 20 has multiple transparent keycap 22 of being made up of light transmissive material and shadow shield 24.Generally speaking, illuminating module 30 can have multiple light-emitting component 32, and usually can select light-emitting diode (LED, Light-EmittingDiode) as the light-emitting component 32 of illuminated keyboard light source.The light guide plate 33 of illuminating module 30 can collect the light that light-emitting component 32 sends, and then emits beam to button group 20 by after the conduction of light guide plate 33 and scattering.In addition, shadow shield 24 is located at the top of light guide plate 33, and loophole 26 is set at each transparent keycap 22 place corresponding, the light of light guide plate 33 conducted inside can via the transparent keycap 22 corresponding to each loophole 26 directive, and enable the distinguished symbol of transparent keycap 22 luminous.
Refer to the vertical view that Fig. 2 a and Fig. 2 b, Fig. 2 a illustrates the illuminating module of the illuminated keyboard of Fig. 1.Fig. 2 b illustrates illuminating module according to Fig. 2 a along the cutaway view of hatching 2-2 '.As shown in Fig. 2 a and Fig. 2 b, known illuminating module 30 from bottom to top comprises circuit board 31, light-emitting component 32, colloid 35, reflector 34 and light guide plate 33.The light-emitting component 32 of known illuminating module 30 be fixed on physical location on circuit board 31 often with originally designed preposition and had offset error to a certain degree, make the containing hole 33a of the light guide plate 33 and holes 34a in reflector 34 need reservedly enough to wear space, the light-emitting component 32 of therefore position skew can wear smoothly and enter.So, will gap be there is in the containing hole 33a of light guide plate 33 with between corresponding light-emitting component 32, because the existence in gap, the light that the exiting surface 32a of light-emitting component 32 is sent can partly scattering be transmitted to the position of the incidence surface 33b of non-genus light guide plate 33 in atmosphere, and there is the luminous energy loss situations such as such as scattering, make the actual non-light intensity sent as actual light-emitting component 32 of light intensity receiving light-emitting component 32 of light guide plate 33, and also can affect the Integral luminous effect of illuminated keyboard 1 further.
Be therefore, how to solve the gap between light guide plate 33 and light-emitting component 32 and cause the problem of luminous energy loss, to promote the illumination effect of illuminated keyboard entirety, for present industry need challenge the technology subject under discussion overcome.
Summary of the invention
The invention provides a kind of illuminating module and a kind of illuminated keyboard, the problem of the halation phenomenon produced during to reduce luminescence and bright dipping energy dissipation.
In order to achieve the above object, the present invention proposes a kind of illuminating module, comprises: circuit board, luminescence unit, printing opacity glue-line, light guide plate and reflector.Luminescence unit is arranged on this circuit board, and this luminescence unit has exiting surface, and this luminescence unit is in order to emit beam from this exiting surface; Printing opacity glue-line has the first gummed portion and the second gummed portion that are connected with each other, wherein this first gummed portion has relative first surface and second, this the second gummed portion has relative the 3rd and fourth face, this first surface in this first gummed portion is arranged on this circuit board, and the 3rd face in this second gummed portion is bonded in this exiting surface of this luminescence unit; Light guide plate has incidence surface, and in order to receive this light transmitted via this second gummed portion, this incidence surface is in the face of this exiting surface of this luminescence unit, and this incidence surface of this light guide plate is bonded in this fourth face in this second gummed portion; Reflector is arranged at below this light guide plate, and the bottom surface in this reflector is bonded in this second of this first gummed portion.
As optional technical scheme, the thickness in this second gummed portion is 0.18mm ~ 0.2mm; Or the thickness in this second gummed portion is 0.16mm ~ 0.2mm.
As optional technical scheme, this printing opacity glue-line also comprises the 3rd gummed portion, and the 3rd gummed portion connects this second gummed portion, and the 3rd gummed portion is bonded in the end face of this luminescence unit of part.
As optional technical scheme, the ranges of indices of refraction in this second gummed portion is the refractive index being greater than 1 and being less than or equal to this light guide plate; Or the scope of the refractive index in this second gummed portion is the refractive index being greater than 1.4 and being less than or equal to this light guide plate; Or the scope of the refractive index in this second gummed portion is for being greater than 1.4 and being less than or equal to 1.55.
As optional technical scheme, the refractive index of this light guide plate is 1.55.
As optional technical scheme, the end face of this luminescence unit trims the end face of this light guide plate.
As optional technical scheme, the most short lines distance between this exiting surface of this luminescence unit and this incidence surface of this light guide plate is 0.18mm ~ 0.2mm.
As optional technical scheme, this printing opacity glue-line is poly-vinegar base material two-sided tape.
In addition, the present invention also proposes a kind of illuminated keyboard, comprises above-mentioned illuminating module and button group, button group is arranged in this illuminating module, this button group has a plurality of keycap, and each keycap has transmittance section, wherein this light via this light guide plate transmit and from this transmittance section bright dipping.
In addition, the present invention also proposes a kind of illuminating module, comprises: circuit board, luminescence unit, the second gummed portion, light guide plate and reflector.This circuit board has circuit board upper surface; Luminescence unit is arranged on this circuit board, and this luminescence unit has exiting surface, and this luminescence unit is in order to emit beam from this exiting surface, and this exiting surface and this circuit board upper surface have the first angle; This second gummed portion has the 3rd and fourth face, and the 3rd face in this second gummed portion is bonded in this exiting surface of this luminescence unit; Light guide plate is arranged at this circuit board, this light guide plate has incidence surface, and this incidence surface is towards this exiting surface, and this incidence surface is bonded in this fourth face in this second gummed portion, this light enters this second gummed portion internal delivery from the 3rd face, then is penetrated by this fourth face and enter this incidence surface; Reflector is arranged between this light guide plate and this circuit board, this reflector has the first end face, holes and the first bottom surface, this luminescence unit projects upwards on this first end face in this reflector through this holes, and this first bottom surface in this reflector is arranged on this circuit board.
As optional technical scheme, this illuminating module also has the first gummed portion, this the first gummed portion has first surface and second, this first surface in this first gummed portion is bonded on this circuit board, this second face in this first gummed portion is bonded in this bottom surface in this reflector, by this first gummed portion, this reflector is fixed on this circuit board.
As optional technical scheme, this the first gummed portion and this second gummed portion are connected with each other and form printing opacity glue-line, this illuminating module making step comprises: this first gummed portion of this printing opacity glue-line is first adhered to this circuit board upper surface by (1), (2) this second gummed portion of this printing opacity glue-line is applied pressure to again, this printing opacity glue-line is out of shape to form this first angle, and this second gummed portion is adhered on this exiting surface.
As optional technical scheme, this luminescence unit has end face, this end face and this exiting surface have the second angle, this illuminating module also has the 3rd gummed portion, 3rd gummed portion upwards extends from this second gummed portion, 3rd gummed portion is bonded in this end face of this luminescence unit of part, so guarantees that this second gummed portion intactly covers this exiting surface.
As optional technical scheme, this the first gummed portion, this the second gummed portion and the 3rd gummed portion are connected with each other and form printing opacity glue-line, this illuminating module making step comprises: this first gummed portion of this printing opacity glue-line is first adhered to this circuit board upper surface by (1), (2) this second gummed portion of this printing opacity glue-line is applied pressure to again, this printing opacity glue-line is out of shape to form this first angle, and this second gummed portion is adhered on this exiting surface, (3) the 3rd gummed portion of this printing opacity glue-line is finally applied pressure to, this printing opacity glue-line is out of shape to form this second angle, and the 3rd gummed portion is adhered on this end face of this luminescence unit.
As optional technical scheme, the ranges of indices of refraction in this second gummed portion is the refractive index being greater than 1 and being less than or equal to this light guide plate; Or the scope of the refractive index in this second gummed portion is the refractive index being greater than 1.4 and being less than or equal to this light guide plate; Or the scope of the refractive index in this second gummed portion is for being greater than 1.4 and being less than or equal to 1.55.
As optional technical scheme, the refractive index of this light guide plate is 1.55.
As optional technical scheme, this reflector and this circuit board are fixed by the heat mode of melting.
Illuminating module of the present invention and illuminated keyboard, the incidence surface of light guide plate and the exiting surface of luminescence unit is connected by the second gummed portion, the light of luminescence unit intactly can be passed in light guide plate via the second gummed portion, to avoid light scattering and produce halation phenomenon in atmosphere, simultaneously the light sent can be avoided again to advance in atmosphere and produce scattering and cause the problem of energy dissipation, be therefore, the luminous energy that the present invention can improve the light of luminescence unit intactly can not be passed to the problem of light guide plate.Therefore, in the present invention, light guide plate can receive the light intensity that light intensity can meet luminescence unit bright dipping, to promote the illumination effect of illuminating module entirety, and can be applied to illuminated keyboard or other luminous product further.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 illustrates a kind of decomposing schematic representation of known illuminated keyboard;
Fig. 2 A illustrates the vertical view of the illuminating module of the illuminated keyboard of Fig. 1;
Fig. 2 B illustrates illuminating module according to Fig. 2 a along the cutaway view of hatching 2-2 ';
Fig. 3 illustrates the decomposing schematic representation of the illuminated keyboard according to one embodiment of the invention;
Fig. 4 illustrates the vertical view of the part A of the illuminated keyboard according to Fig. 3;
Fig. 5 illustrates part A according to the illuminated keyboard of Fig. 4 along the cutaway view of hatching 5-5 ';
Fig. 6 A ~ 6C illustrates the manufacturing flow chart of the illuminating module of the illuminated keyboard according to yet another embodiment of the invention;
Fig. 7 illustrates the vertical view of the illuminating module of the illuminated keyboard according to Fig. 6 B.
Embodiment
Please refer to Fig. 3, it illustrates the decomposing schematic representation of the illuminated keyboard according to one embodiment of the invention.As shown in Figure 3, the illuminated keyboard 10 of the present embodiment comprises illuminating module 100 and button group 200, wherein button group 200 has a plurality of keycap 210 and shadow shield 220, keycap 210 can be arranged on shadow shield 220, wherein shadow shield 220 has a plurality of loophole 222, and each keycap 210 has transmittance section (not shown), corresponding loophole 222 can be distinguished in transmittance section.Moreover illuminating module 100 can emit beam towards button group 200, that is, light can transmit via the light guide plate 140 of illuminating module 100 and the loophole 222 penetrating shadow shield 220 with the transmittance section bright dipping from each keycap 210.Because each keycap 210 can arrange corresponding distinguished symbol in its transmittance section, can make transmittance section shows corresponding distinguished symbol by light from the transmittance section bright dipping of keycap 210, and allow every the keycap 210 of user in dim environment identifiable design button group 200.
The vertical view of the part A of the illuminated keyboard according to Fig. 3 is illustrated continue referring to Fig. 4 and Fig. 5, Fig. 4.Fig. 5 illustrates part A according to the illuminated keyboard of Fig. 4 along the cutaway view of hatching 5-5 '.As shown in Fig. 3 ~ Fig. 5, in the present embodiment, illuminating module 100 can comprise circuit board 110, luminescence unit 120, printing opacity glue-line 130, light guide plate 140 and reflector 150.Luminescence unit 120 is arranged on circuit board 110, light guide plate 140 is arranged on reflector 150, printing opacity glue-line 130 is between reflector 150 and circuit board 110 and both be bonded to each other, meanwhile, printing opacity glue-line 130 also to extend between light guide plate 140 and luminescence unit 120 and both is bonded to each other.
Specifically, luminescence unit 120 is arranged on the circuit board upper surface 112 of circuit board 110, and luminescence unit 120 has the smooth exiting surface 122 in surface, and light can send from exiting surface 122, and wherein exiting surface 122 and circuit board upper surface 112 have the first angle theta 1.Specifically, the luminescence unit 120 of the present embodiment is light-emitting diode (LED), and the exiting surface 122 of general light-emitting diode is the long limit of LED package, and exiting surface 122 and luminescence unit 120 end face 120a confluce are exiting surface top margin 122a, but not as limit.On the other hand, in the present embodiment, the first angle theta 1 that exiting surface 122 and circuit board upper surface 112 are formed can be 90 degree, but not as limit.
In the present embodiment, luminescence unit 120 is a plurality of, and light guide plate 140 has a plurality of containing hole 140a, and reflector 150 has a plurality of holes 150a, and position is corresponding each other for containing hole 140a and holes 150a position; Therefore, when the bottom surface 142 of light guide plate 140 connects first end face 152 in reflector 150, containing hole 140a and holes 150a communicates with each other.So, when first bottom surface 154 in reflector 150 is arranged on the circuit board upper surface 112 of circuit board 110, luminescence unit 120 can project upwards on first end face 152 in reflector 150 through holes 150a, and is placed in containing hole 140a corresponding in light guide plate 140.In the present embodiment, the containing hole 140a communicated with each other is identical with the size shape of holes 150a, but not as limit.Meanwhile, be provided with incidence surface 140b in the containing hole 140a of light guide plate 140, incidence surface 140b is respectively in the face of the exiting surface 122 of its corresponding luminescence unit 120.
In the present embodiment, the number of the luminescence unit 120 of illuminating module 100 is a plurality of, but not as limit, in other embodiments, the number of the luminescence unit 120 of illuminating module 100 can be only one, can implement the present invention according to this.
Specifically, go back to Fig. 3, containing hole 140a is arranged at the middle part of light guide plate 140, and containing hole 140a can be distinguished into right group 141a (shown in Fig. 3, wherein three containing hole 140a belong to right group) and left group 141b (shown in Fig. 3, wherein three containing hole 140a belong to left group).Generally speaking, the containing hole 140a position belonging to left group 141b is in the left of containing hole 140a belonging to right group 141a.Simultaneously, be positioned at the left bright dipping of exiting surface 122 generally toward left group 141b entirety of the luminescence unit 120 of the containing hole 140a of left group 141b, be positioned at the right bright dipping of exiting surface 122 generally toward right group 141a entirety of the luminescence unit 120 of the containing hole 140a of right group 141a.That is, the exiting surface 122 being positioned at the luminescence unit 120 of left group 141b is away from one another with the exiting surface 122 of the luminescence unit 120 being positioned at right group 141a.
Please referring again to Fig. 4 and Fig. 5, printing opacity glue-line 130 has the first gummed portion 132 and the vertically extending second gummed portion 134 of essence of substantial level extension, wherein the first gummed portion 132 has relative first surface (bottom surface) 132a and second (end face) 132b, and the second gummed portion 134 has the 3rd relative (right flank) 134a and fourth face (left surface) 134b.In the present embodiment, the first surface 132a in the first gummed portion 132 is bonded on the circuit board upper surface 112 of circuit board 110, and second 132b in the first gummed portion 132 is bonded in first bottom surface 154 in reflector 150.Therefore, the first gummed portion 132 bonds reflector 150 and circuit board 110, and then luminescence unit 120 can be fixedly installed in the containing hole 140a of light guide plate 140.Preferred configuration is the end face 144 making the end face 120a of luminescence unit 120 generally trim light guide plate 140 simultaneously, and the light major part that luminescence unit 120 like this sends can enter in light guide plate 140 smoothly.
Meanwhile, the 3rd 134a in the second gummed portion 134 is fully bonded in the exiting surface 122 of luminescence unit 120, and the fourth face 134b in the second gummed portion 134 fully can be bonded in the incidence surface 140b of light guide plate 140.In the present embodiment, the first gummed portion 132 and the second gummed portion 134 can be connected to each other, and make the fourth face 134b in the second gummed portion 134 can be bonded in the incidence surface 140b of light guide plate 140 and the side 156 in reflector 150, but not as limit.In other embodiments, reflector 150 and circuit board 110 also can be fixed by the heat mode of melting, first gummed portion 132 like this can be omitted, illuminating module 100 only can arrange the second gummed portion 134, as long as its fourth face 134b is bonded in the incidence surface 140b of light guide plate 140 and its 3rd 134a is bonded in the exiting surface 122 of luminescence unit 120, the present invention can be implemented according to this, but not as limit.
In the present embodiment, printing opacity glue-line 130 can be poly-vinegar base material two-sided tape, but not as limit.In addition, the thickness in the second gummed portion 134 can be 0.16mm ~ 0.2mm; In a preferred embodiment, the thickness in the second gummed portion 134 can 0.18mm ~ 0.2mm, but not as limit.On the other hand, the most short lines spacing I of the exiting surface 122 of luminescence unit 120 and the incidence surface 140b of light guide plate 140
1can be 0.18mm ~ 0.2mm.That is, the thickness in the second gummed portion 134 generally can fill up the spacing between exiting surface 122 and incidence surface 140b, makes the 3rd 134a and fourth face 134b in the second gummed portion 134 closely can be bonded in corresponding exiting surface 122 and incidence surface 140b respectively.
In addition, the ranges of indices of refraction in the second gummed portion 134 of the present embodiment is preferably the refractive index 1 and the refractive index 1.55 being less than or equal to light guide plate 140 that are greater than air.In a preferred embodiment, the scope of the refractive index in the second gummed portion 134 is the refractive index 1.55 being greater than 1.4 and being less than or equal to light guide plate 140.Therefore, the light that luminescence unit 120 sends can successfully enter in the second gummed portion 134, and successfully enter in light guide plate 140 in the incidence surface 140b intersection of the second gummed portion fourth face 134b and light guide plate 140, it is event, luminescence unit 120 emitted light can be avoided being exposed in air before entering light guide plate 140 dispersing towards multiple directions, causes halation phenomenon and causes the luminous energy loss of the light entering light guide plate 140.
In the present embodiment, printing opacity glue-line 130 also can comprise the top that the 3rd gummed portion 136 of gummed portion the 136, three connects the second gummed portion 134, and the 3rd gummed portion 136 is bonded in an end face 120a part for luminescence unit 120.As shown in Figure 4, to cover and the X-axis length being bonded in the 3rd gummed portion 136 of luminescence unit end face 120a can be less than the X-axis length of the end face 120a of luminescence unit 120.Because the 3rd gummed portion 136 is formed for upwards bending extension from the second gummed portion 134, when the 3rd gummed portion 136 is bonded in the end face 120a of the luminescence unit 120 of part, can guarantee that the second gummed portion 134 extends up to the exiting surface top margin 122a of the exiting surface 122 reaching luminescence unit 120 really, that is guarantee that the 3rd 134a in the second gummed portion 134 is bonded in whole exiting surfaces 122 of luminescence unit.
On the other hand, although the energy of the light of the second gummed portion 134 meeting absorption portion, most light can be inducted in light guide plate 140 via the second gummed portion 134 by the second gummed portion 134, avoids light dissipation in air.Learn through experiment measuring, brightness in the light guide plate 140 of the illuminating module 100 in the second gummed portion 134 is set and exceeds 8% compared to the brightness of light guide plate of the illuminating module not arranging the second gummed portion.
Please refer to Fig. 6 A ~ Fig. 6 C, it illustrates the manufacturing flow chart of the illuminating module 100 according to the illuminated keyboard of yet another embodiment of the invention.
As shown in Figure 6A, be arranged at by luminescence unit 120 on the circuit board upper surface 112 of circuit board 110, wherein the exiting surface 122 of two luminescence units 120 is away from one another.
Further as shown in Fig. 6 B and Fig. 7, (1) removing from shape layer first by printing opacity glue-line 130 lower surface, the first gummed portion 132 lower surface of printing opacity glue-line 130 is made to be adhered to circuit board upper surface 112, (2) the printing opacity glue-line 130 that applies pressure to again makes it be out of shape and has the first angle theta 1, makes the second gummed portion 134 be adhered on the exiting surface 122 of luminescence unit 120; (3) continue to apply pressure to printing opacity glue-line 130 make it be out of shape and there is the second angle theta 2, make the 3rd gummed portion 136 be bonded at least part of end face 120a of luminescence unit 120.Wherein the first angle theta 1 and the second angle theta 2, is all printing opacity glue-line 130 piecemeal in adhesion process, coordinates the angle that circuit board 110 is formed with exiting surface 122 profile of luminescence unit 120.For example, if luminescence unit exiting surface 122 is perpendicular to circuit board 110 and end face 120a, then the first angle theta 1 and the second angle theta 2 can be 90 degree, but not as limit.On the other hand, as shown in Figure 7, the first cementing layer 132 is recessed in circuit board 110, and that is, when the first cementing layer 132 adhered circuit board 110, the edge of circuit board 110 part can be exposed to outside the first cementing layer 132, but not as limit.
Afterwards, as shown in Figure 6 C, by removing from shape layer of printing opacity glue-line 130 upper surface, and after the containing hole 140a of light guide plate 140 is aligned luminescence unit 120, so first bottom surface 152 in reflector 150 is bonded on second 132b in the first gummed portion 132, and the incidence surface 140b of the containing hole 140a of light guide plate 140 is bonded on the fourth face 134b in the second gummed portion 134, and form the illuminating module 100 described in the present embodiment.
From the invention described above embodiment, application the present invention have the following advantages.Mainly the incidence surface of light guide plate and the exiting surface of luminescence unit is connected by the second gummed portion in the illuminating module of the present embodiment, the light of luminescence unit intactly can be passed in light guide plate via the second gummed portion, to avoid light scattering and produce halation phenomenon in atmosphere, simultaneously the light sent can be avoided again to advance in atmosphere and produce scattering and cause the problem of energy dissipation, be therefore, the luminous energy that the embodiment of the present invention can improve the light of luminescence unit intactly can not be passed to the problem of light guide plate.Therefore, the light guide plate of the illuminating module of the embodiment of the present invention can receive the light intensity that light intensity can meet luminescence unit bright dipping, to promote the illumination effect of illuminating module entirety, and can be applied to illuminated keyboard or other luminous product further.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (17)
1. an illuminating module, is characterized in that comprising:
Circuit board;
Luminescence unit, be arranged on this circuit board, this luminescence unit has exiting surface, and this luminescence unit is in order to emit beam from this exiting surface;
Printing opacity glue-line, there is the first gummed portion and the second gummed portion that are connected with each other, wherein this first gummed portion has relative first surface and second, this the second gummed portion has relative the 3rd and fourth face, this first surface in this first gummed portion is arranged on this circuit board, and the 3rd face in this second gummed portion is bonded in this exiting surface of this luminescence unit;
Light guide plate, has incidence surface, and in order to receive this light transmitted via this second gummed portion, this incidence surface is in the face of this exiting surface of this luminescence unit, and this incidence surface of this light guide plate is bonded in this fourth face in this second gummed portion; And
Reflector, is arranged at below this light guide plate, and the bottom surface in this reflector is bonded in this second of this first gummed portion.
2. illuminating module according to claim 1, is characterized in that: the thickness in this second gummed portion is 0.18mm ~ 0.2mm;
Or the thickness in this second gummed portion is 0.16mm ~ 0.2mm.
3. illuminating module according to claim 1, is characterized in that: this printing opacity glue-line also comprises the 3rd gummed portion, and the 3rd gummed portion connects this second gummed portion, and the 3rd gummed portion is bonded in the end face of this luminescence unit of part.
4. illuminating module according to claim 1, is characterized in that: the ranges of indices of refraction in this second gummed portion is the refractive index being greater than 1 and being less than or equal to this light guide plate;
Or the scope of the refractive index in this second gummed portion is the refractive index being greater than 1.4 and being less than or equal to this light guide plate;
Or the scope of the refractive index in this second gummed portion is for being greater than 1.4 and being less than or equal to 1.55.
5. illuminating module according to claim 4, is characterized in that: the refractive index of this light guide plate is 1.55.
6. illuminating module according to claim 1, is characterized in that: the end face of this luminescence unit trims the end face of this light guide plate.
7. illuminating module according to claim 1, is characterized in that: the most short lines distance between this exiting surface of this luminescence unit and this incidence surface of this light guide plate is 0.18mm ~ 0.2mm.
8. illuminating module according to claim 1, is characterized in that: this printing opacity glue-line is poly-vinegar base material two-sided tape.
9. an illuminated keyboard, is characterized in that comprising:
Illuminating module according to any one of claim 1 to 8; And
Button group, is arranged in this illuminating module, and this button group has a plurality of keycap, and each keycap has transmittance section, wherein this light via this light guide plate transmit and from this transmittance section bright dipping.
10. an illuminating module, is characterized in that comprising:
Circuit board, this circuit board has circuit board upper surface;
Luminescence unit, be arranged on this circuit board, this luminescence unit has exiting surface, and this luminescence unit is in order to emit beam from this exiting surface, and this exiting surface and this circuit board upper surface have the first angle;
Second gummed portion, this second gummed portion has the 3rd and fourth face, and the 3rd face in this second gummed portion is bonded in this exiting surface of this luminescence unit;
Light guide plate, is arranged at this circuit board, and this light guide plate has incidence surface, this incidence surface is towards this exiting surface, this incidence surface is bonded in this fourth face in this second gummed portion, and this light enters this second gummed portion internal delivery from the 3rd face, then is penetrated by this fourth face and enter this incidence surface; And
Reflector, be arranged between this light guide plate and this circuit board, this reflector has the first end face, holes and the first bottom surface, and this luminescence unit projects upwards on this first end face in this reflector through this holes, and this first bottom surface in this reflector is arranged on this circuit board.
11. illuminating module according to claim 10, it is characterized in that: this illuminating module also has the first gummed portion, this the first gummed portion has first surface and second, this first surface in this first gummed portion is bonded on this circuit board, this second face in this first gummed portion is bonded in this bottom surface in this reflector, by this first gummed portion, this reflector is fixed on this circuit board.
12. illuminating module according to claim 11, it is characterized in that: this first gummed portion and this second gummed portion are connected with each other and form printing opacity glue-line, this illuminating module making step comprises: this first gummed portion of this printing opacity glue-line is first adhered to this circuit board upper surface by (1), (2) this second gummed portion of this printing opacity glue-line is applied pressure to again, this printing opacity glue-line is out of shape to form this first angle, and this second gummed portion is adhered on this exiting surface.
13. illuminating module according to claim 11, it is characterized in that: this luminescence unit has end face, this end face and this exiting surface have the second angle, this illuminating module also has the 3rd gummed portion, 3rd gummed portion upwards extends from this second gummed portion, 3rd gummed portion is bonded in this end face of this luminescence unit of part, so guarantees that this second gummed portion intactly covers this exiting surface.
14. illuminating module according to claim 13, it is characterized in that: this first gummed portion, this the second gummed portion and the 3rd gummed portion are connected with each other and form printing opacity glue-line, this illuminating module making step comprises: this first gummed portion of this printing opacity glue-line is first adhered to this circuit board upper surface by (1), (2) this second gummed portion of this printing opacity glue-line is applied pressure to again, this printing opacity glue-line is out of shape to form this first angle, and this second gummed portion is adhered on this exiting surface, (3) the 3rd gummed portion of this printing opacity glue-line is finally applied pressure to, this printing opacity glue-line is out of shape to form this second angle, and the 3rd gummed portion is adhered on this end face of this luminescence unit.
15. illuminating module according to claim 10, is characterized in that: the ranges of indices of refraction in this second gummed portion is the refractive index being greater than 1 and being less than or equal to this light guide plate;
Or the scope of the refractive index in this second gummed portion is the refractive index being greater than 1.4 and being less than or equal to this light guide plate;
Or the scope of the refractive index in this second gummed portion is for being greater than 1.4 and being less than or equal to 1.55.
16. illuminating module according to claim 15, is characterized in that: the refractive index of this light guide plate is 1.55.
17. illuminating module according to claim 10, is characterized in that: this reflector and this circuit board are fixed by the heat mode of melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510434281.6A CN105118722B (en) | 2015-07-22 | 2015-07-22 | Illuminating module and illuminated keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510434281.6A CN105118722B (en) | 2015-07-22 | 2015-07-22 | Illuminating module and illuminated keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105118722A true CN105118722A (en) | 2015-12-02 |
| CN105118722B CN105118722B (en) | 2017-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510434281.6A Active CN105118722B (en) | 2015-07-22 | 2015-07-22 | Illuminating module and illuminated keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105118722B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080030975A1 (en) * | 2006-08-03 | 2008-02-07 | Citizens Electronics Co., Ltd. | Light emitting sheet module |
| CN101706070A (en) * | 2009-11-23 | 2010-05-12 | 友达光电股份有限公司 | Light-emitting element and backlight module thereof |
| CN102537715A (en) * | 2010-11-09 | 2012-07-04 | 阿尔卑斯电气株式会社 | Lighting device and method for making the same |
| CN204345358U (en) * | 2015-01-15 | 2015-05-20 | 安徽彩晶光电有限公司 | Side entering type LED |
-
2015
- 2015-07-22 CN CN201510434281.6A patent/CN105118722B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080030975A1 (en) * | 2006-08-03 | 2008-02-07 | Citizens Electronics Co., Ltd. | Light emitting sheet module |
| CN101706070A (en) * | 2009-11-23 | 2010-05-12 | 友达光电股份有限公司 | Light-emitting element and backlight module thereof |
| CN102537715A (en) * | 2010-11-09 | 2012-07-04 | 阿尔卑斯电气株式会社 | Lighting device and method for making the same |
| CN204345358U (en) * | 2015-01-15 | 2015-05-20 | 安徽彩晶光电有限公司 | Side entering type LED |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105118722B (en) | 2017-07-25 |
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