CN103077842A - Light guide plate structure, luminous keyboard and production method of light guide plate structure - Google Patents
Light guide plate structure, luminous keyboard and production method of light guide plate structure Download PDFInfo
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- CN103077842A CN103077842A CN2012105815885A CN201210581588A CN103077842A CN 103077842 A CN103077842 A CN 103077842A CN 2012105815885 A CN2012105815885 A CN 2012105815885A CN 201210581588 A CN201210581588 A CN 201210581588A CN 103077842 A CN103077842 A CN 103077842A
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Abstract
The invention discloses a light guide plate structure, a luminous keyboard and a production method of the light guide plate structure. The light guide plate structure comprises a light guide plate, a circuit membrane and a thermosetting supporting layer. A first circuit layer is formed on the light guide plate, and the first circuit layer is provided with at least one first trigger point. The circuit membrane is attached on the light guide plate, a second circuit layer is formed on the circuit membrane, the second circuit layer is opposite to the first circuit layer, and is provided with at least one second trigger point, and the position of the first trigger point corresponds to the position of the second trigger point. The thermosetting supporting layer is encircled outside the first trigger point and the second trigger point in the way of screen printing, and is located between the light guide plate and the circuit membrane, so that a gap is formed between the first trigger point and the second trigger point. According to the invention, a space required for configuration of a film circuit board and the light guide plate on the luminous keyboard can be further reduced so as to be beneficial for sequent thinning design of the luminous keyboard.
Description
Technical field
The present invention is about a kind of light conducting plate structure, illuminated keyboard and light conducting plate structure manufacture method, and espespecially a kind of mode with screen painting forms light conducting plate structure, illuminated keyboard and the light conducting plate structure manufacture method of thermosetting supporting layer between circuit diaphragm and light guide plate.
Background technology
See also Fig. 1, it is the cut-away section schematic diagram of the illuminated keyboard 1 of prior art.As shown in Figure 1, illuminated keyboard 1 comprises base plate 10, film circuit board 12, a plurality of button 14 and backlight module 16.Each button 14 is arranged on the base plate 10, and film circuit board 12 is arranged between base plate 10 and a plurality of button 14, and when user's pressing keys 14, button 14 will press down and trigger film circuit board 12, and then carries out the keypress function of user institute wish input.Backlight module 16 is arranged at base plate 10 times, in order to provide illuminated keyboard 1 luminous light source, backlight module 16 comprises light guide plate 18 and luminescence unit 20, light guide plate 18 is arranged at base plate 10 times, 20 of luminescence units are sides that is arranged at light guide plate 18, so that the light of luminescence unit 20 emissions can be in light guide plate 18 interior generation total reflections, and the pip (not shown) that utilizes light guide plate 18 bottoms allows light penetrate from light guide plate 18, and then project outside the button 14 towards the direction of base plate 10, use producing the luminous effect of illuminated keyboard 1.
Yet, because said film circuit board 12 adopts the trilamellar membrane design that separates upper strata circuit diaphragm and lower circuit diaphragm to have certain thickness spacer layer usually, therefore cause the integral thickness of film circuit board 12 to reduce further, therefore can cause many restrictions to the slimming design of illuminated keyboard 1, in addition, the design that was arranged in 18 minutes of as shown in Figure 1 film circuit board 12 and light guide plate also is unfavorable for the slimming design of illuminated keyboard 1.
Summary of the invention
One of the object of the invention is to provide a kind of mode with screen painting to form light conducting plate structure, illuminated keyboard and the light conducting plate structure manufacture method of thermosetting supporting layer between circuit diaphragm and light guide plate, to solve the above problems.
According to an embodiment, the invention provides a kind of light conducting plate structure, it comprises: light guide plate, circuit diaphragm and thermosetting supporting layer.Be formed with the first circuit layer on this light guide plate, this first circuit layer has at least one the first trigger point; This circuit diaphragm is attached at and is formed with the second circuit layer on this light guide plate and on it, this second circuit layer and this first circuit layer toward each other and have at least one the second trigger point, the position of this at least one the first trigger point is to position that should at least one the second trigger point; This thermosetting supporting layer in the mode of screen painting around being arranged at outside this at least one first trigger point and this at least one the second trigger point and between this light guide plate and this circuit diaphragm, so that this at least one first trigger point and this at least one second trigger point gap apart.
As optional technical scheme, this thermosetting supporting layer is comprised of light-transmitting materials.
As optional technical scheme, this thermosetting supporting layer is comprised of ultraviolet curable resin.
As optional technical scheme, this thermosetting supporting layer has at least one air flue of escaping, and flows to outside this thermosetting supporting layer so that the air between this thermosetting supporting layer, this light guide plate and this circuit diaphragm can be escaped via this air flue.
As optional technical scheme, light conducting plate structure comprises in addition: cementing layer, its with the mode of screen painting around be arranged at outside this thermosetting supporting layer and adhere to this light guide plate and this circuit diaphragm between.
As optional technical scheme, this first circuit layer and this second circuit layer are formed at respectively on this light guide plate and this circuit diaphragm in the mode of screen painting.
As optional technical scheme, this first circuit layer and this second circuit layer are comprised of the conductive silver paste material.
As optional technical scheme, this circuit diaphragm is comprised of the polyethylene terephthalate material, and this light guide plate is comprised of the makrolon material material.
According to another embodiment, the invention provides a kind of illuminated keyboard, it comprises: base plate, above-mentioned light conducting plate structure, a plurality of button and at least one luminescence unit.This light conducting plate structure is arranged under this base plate; These a plurality of buttons are arranged on this base plate, and each button is used for pressing this circuit diaphragm so that the first and second corresponding trigger point contacts with each other; This at least one luminescence unit is arranged at a side of this light guide plate, is used for emission of light so that at least one of them button towards these a plurality of buttons projects via this light guide plate.
According to another embodiment, the invention provides a kind of method for manufacturing light guide plate, it comprises: circuit diaphragm and light guide plate are provided; Form respectively the first circuit layer and second circuit layer on this light guide plate and this circuit diaphragm, this first circuit layer has at least one the first trigger point, has at least one the second trigger point on this second circuit layer; With the mode of screen painting form the thermosetting supporting layer on this light guide plate with around be arranged at outside this at least one first trigger point or on this circuit diaphragm with around being arranged at outside this at least one second trigger point; And attach this circuit diaphragm on this light guide plate so that this second circuit layer and this first circuit layer are toward each other, and make this at least one first trigger point to should at least one the second trigger point with via this thermosetting supporting layer at a distance of a gap.
As optional technical scheme, this thermosetting supporting layer is comprised of light-transmitting materials.
As optional technical scheme, this thermosetting supporting layer is comprised of ultraviolet curable resin.
As optional technical scheme, this thermosetting supporting layer has at least one air flue of escaping, and flows to outside this thermosetting supporting layer so that the air between this thermosetting supporting layer, this light guide plate and this circuit diaphragm can be escaped via this air flue.
As optional technical scheme, attach this circuit diaphragm and comprise in the step on this light guide plate: with the mode of screen painting form cementing layer outside this thermosetting supporting layer so that this circuit diaphragm is adhered on this light guide plate.
As optional technical scheme, form respectively this first circuit layer and this second circuit layer on this circuit diaphragm and the step on this light guide plate comprise: form respectively this first circuit layer and this second circuit layer on this circuit diaphragm and on this light guide plate in the mode of screen painting.
In sum, light conducting plate structure of the present invention can see through the first trigger point that utilizes formed thermosetting support layer supports the first circuit layer of screen painting mode, so that the second trigger point of the first trigger point of the first circuit layer and second circuit layer is at a distance of a gap, use replace that prior art adopts separate the trilamellar membrane design of upper strata circuit diaphragm and lower circuit diaphragm with spacer layer, utilize the thermosetting supporting layer performance with ultrathin to support the purpose of separating effect thereby reach, add and utilize the design that directly the circuit diaphragm is attached at omission lower circuit diaphragm on the light guide plate to divide the design that is arranged to replace film circuit board and the light guide plate that prior art was adopted, thus, the present invention can further reduce the space of illuminated keyboard required use on configuration film circuit board and light guide plate, in order to the slimming design of follow-up illuminated keyboard.
Can be further understood by following detailed Description Of The Invention and institute's accompanying drawing about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is the cut-away section schematic diagram of the illuminated keyboard of prior art.
Fig. 2 is the cut-away section schematic diagram of the illuminated keyboard that proposes according to one embodiment of the invention.
Fig. 3 is the top view of the light conducting plate structure of Fig. 2.
Fig. 4 is that the light conducting plate structure of Fig. 3 is along the cut-away section schematic diagram of hatching A-A '.
Fig. 5 is for using method for manufacturing light guide plate of the present invention with the flow chart of the light conducting plate structure of formation Fig. 3.
Embodiment
See also Fig. 2, it is the cut-away section schematic diagram of the illuminated keyboard 100 that proposes according to one embodiment of the invention, as shown in Figure 2, illuminated keyboard 100 comprises base plate 102, a plurality of button 104, (demonstration is one in Fig. 2 at least one luminescence unit 106, but not limit by this), and light conducting plate structure 108.Button 104 is arranged on the base plate 102, and luminescence unit 106 is (such as light-emittingdiode (Light Emitting Diode, LED) etc.) then be a side that is arranged at light conducting plate structure 108, use so that the light that luminescence unit 106 is launched can project via the direction of light conducting plate structure 108 towards button 104, thereby make illuminated keyboard 100 have the effect of lighting function.
Be described in detail in this structural design for light conducting plate structure 108, see also Fig. 2, Fig. 3 and Fig. 4, Fig. 3 is the top view of the light conducting plate structure 108 of Fig. 2, and Fig. 4 is that the light conducting plate structure 108 of Fig. 3 is along the cut-away section schematic diagram of hatching A-A '.By Fig. 2, Fig. 3 and Fig. 4 as can be known, light conducting plate structure 108 is arranged at base plate 102 times and comprises light guide plate 110, circuit diaphragm 112, and a plurality of thermosetting supporting layers 114, wherein light guide plate 110 is preferably by makrolon material (Polycarbonate, PC) material forms, circuit diaphragm 112 preferably is comprised of polyethylene terephthalate (Polyethylene Terephthalate, PET) material, but not limit by this.Be formed with the first circuit layer 116 on the light guide plate 110, the first circuit layer 116 has a plurality of the first trigger points 118, circuit diaphragm 112 then is to be attached to be formed with second circuit layer 120 on the light guide plate 110 and on it, second circuit layer 120 and the first circuit layer 116 are toward each other and have a plurality of the second trigger points 122, the position of respectively corresponding a plurality of the second trigger points 122, the position of a plurality of the first trigger points 118, in actual applications, the first circuit layer 116 and second circuit layer 120 preferably are comprised of the conductive silver paste material.Each thermosetting supporting layer 114 is respectively around being arranged at outside the first corresponding trigger point 118 and the second trigger point 122 (as shown in Figure 3), and between light guide plate 110 and circuit diaphragm 112 so that each first trigger point 118 and corresponding the second trigger point 122 at a distance of a gap H (as shown in Figure 4).By this, each button 104 can see through the mode press circuit diaphragm 112 and the first corresponding trigger point 118 and the second trigger point 122 are contacted with each other and trigger, and then carries out the keypress function of user institute wish input.
In addition, in this embodiment, thermosetting supporting layer 114 can have at least one air flue 124 of escaping and (show one in Fig. 3, but not limit by this), so that the air between thermosetting supporting layer 114, light guide plate 110 and circuit diaphragm 112 can successfully flow to outside the thermosetting supporting layer 114 via escaping air flue 124 when button 104 is pressed, so can when illuminated keyboard 100 is in the lower environment for use of air pressure, effectively solve the problem that to press because of the inconsistent button that causes 104 of interior external pressure.In addition, aspect the attaching of light guide plate 110 and circuit diaphragm 112, in this embodiment, light conducting plate structure 108 can comprise a plurality of cementing layers 126 in addition, each cementing layer 126 is used 112 adhesions of circuit diaphragm is fixed on the light guide plate 110 around being arranged at outside the corresponding thermosetting supporting layer 114 and adhering between light guide plate 110 and the circuit diaphragm 112.
Then, see also Fig. 5, it is for using method for manufacturing light guide plate of the present invention with the flow chart of the light conducting plate structure 108 of formation Fig. 3, and as shown in Figure 5, method for manufacturing light guide plate of the present invention comprises the following step.
Step 500: circuit diaphragm 112 and light guide plate 110 are provided;
Step 502: form respectively the first circuit layer 116 and second circuit layer 120 on light guide plate 110 and circuit diaphragm 112;
Step 504: with the mode of screen painting form thermosetting supporting layer 114 on the light guide plate 110 with around being arranged at outside the first trigger point 118;
Step 506: attach circuit diaphragm 112 on light guide plate 110, so that second circuit layer 120 and the first circuit layer 116 are toward each other and make 118 corresponding the second trigger points 122, the first trigger point.
Describe for above-mentioned steps in this.At first, execution in step 500 and step 502, that is to say, after circuit diaphragm 112 and light guide plate 110 are provided, in this embodiment, it can preferably use the screen painting processing procedure forming respectively the first circuit layer 116 and second circuit layer 120 on light guide plate 110 and circuit diaphragm 112, but not limit by this, it also can change and uses other common circuit layer molding manufacture procedures, such as the bat printing printing etc.
Next, execution in step 504, its can utilize the screen painting processing procedure with form a plurality of thermosetting supporting layers 114 on the light guide plate 110 with around being arranged at outside the first corresponding trigger point 118, wherein thermosetting supporting layer 114 is preferably formed (such as ultraviolet curable resin etc.) by light-transmitting materials, use the light transmittance that promotes further light conducting plate structure 108, but not limit by this, it also can change other common made from thermosetting materials of employing, such as epoxy resin, phenol resin, unsaturated polyester resin etc.It is worth mentioning that, because the present invention adopts the screen painting processing procedure to carry out the moulding of thermosetting supporting layer 114, therefore, according to practical experience, thickness with the formed thermosetting supporting layer 114 of the mode of screen painting can be reduced to further in the scope of 7 μ m to 15 μ m, has the effect of ultrathin thereby produce thermosetting supporting layer 114.
At last, execution in step 506, circuit diaphragm 112 is attached on the light guide plate 110, in more detail, in this embodiment, light conducting plate structure 108 can preferably adopt the screen painting processing procedure to form corresponding cementing layer 126 outside each thermosetting supporting layer 114, by this, when attaching circuit diaphragm 112 is on light guide plate 110, cementing layer 126 can utilization itself adhesiveness so that 112 adhesions of circuit diaphragm are fixed on the light guide plate 110, but not limit by this, for instance, light conducting plate structure 108 also can omit the configuration of cementing layer 126 and changes and adopt the adhesion of carrying out between circuit diaphragm 112 and the light guide plate 110 in the mode of the periphery of viscose glue applying light guide plate 110 and circuit diaphragm 112 to fix.As for the related description of the molding manufacture procedure of the first circuit layer 116, second circuit layer 120, thermosetting supporting layer 114 and the cementing layer 126 mentioned in the above-mentioned steps, it is common in the prior art, therefore repeat no more in this.Should be noted, the configuration of above-mentioned thermosetting supporting layer 114 and cementing layer 126 can be not limited to above-mentioned mode with screen painting around being arranged at outside the first trigger point 118, it also can change and adopts thermosetting supporting layer 114 and cementing layer 126 to be formed at design on the circuit diaphragm 112 in the mode of screen painting, as for adopting which kind of design, its actual processing procedure planning on light conducting plate structure 108 is decided.In addition, for the thickness of thermosetting supporting layer 114 and cementing layer 126 and the setting of diameters, its setting that can see through screen painting process parameter (such as print pass etc.) is carried out, and uses the feel of pressing of flexibly adjusting button 104.
See through above-mentioned steps, after utilizing the formed thermosetting supporting layer 114 of screen painting mode and cementing layer 126 to solidify, light conducting plate structure 108 can utilize thermosetting supporting layer 114 and cementing layer 126 to support the first trigger point 118 of the first circuit layer 116, so that the second trigger point 122 of the first trigger point 118 of the first circuit layer 116 and second circuit layer 120 is at a distance of a gap H, use replace that prior art adopts separate the trilamellar membrane design of upper strata circuit diaphragm and lower circuit diaphragm with spacer layer, use the thermosetting supporting layer 114 with ultrathin to support the purpose of separating effect with cementing layer 126 performances thereby reach, add and utilize the design that directly circuit diaphragm 112 is attached at omission lower circuit diaphragm on the light guide plate 110 to divide the design that is arranged to replace film circuit board and the light guide plate that prior art was adopted, thus, the present invention can further reduce the space of illuminated keyboard required use on configuration film circuit board and light guide plate, in order to the slimming design of follow-up illuminated keyboard.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (15)
1. light conducting plate structure is characterized in that comprising:
Light guide plate is formed with the first circuit layer on it, this first circuit layer has at least one the first trigger point;
The circuit diaphragm, it is attached at and is formed with the second circuit layer on this light guide plate and on it, this second circuit layer and this first circuit layer toward each other and have at least one the second trigger point, the position of this at least one the first trigger point is to position that should at least one the second trigger point; And
The thermosetting supporting layer, its in the mode of screen painting around being arranged at outside this at least one first trigger point and this at least one the second trigger point and between this light guide plate and this circuit diaphragm, so that this at least one first trigger point and this at least one second trigger point gap apart.
2. light conducting plate structure according to claim 1, it is characterized in that: this thermosetting supporting layer is comprised of light-transmitting materials.
3. light conducting plate structure according to claim 2, it is characterized in that: this thermosetting supporting layer is comprised of ultraviolet curable resin.
4. light conducting plate structure according to claim 1, it is characterized in that: this thermosetting supporting layer has at least one air flue of escaping, and flows to outside this thermosetting supporting layer so that the air between this thermosetting supporting layer, this light guide plate and this circuit diaphragm can be escaped via this air flue.
5. light conducting plate structure according to claim 1 is characterized in that comprising in addition: cementing layer, its with the mode of screen painting around be arranged at outside this thermosetting supporting layer and adhere to this light guide plate and this circuit diaphragm between.
6. light conducting plate structure according to claim 1, it is characterized in that: this first circuit layer and this second circuit layer are formed at respectively on this light guide plate and this circuit diaphragm in the mode of screen painting.
7. light conducting plate structure according to claim 6, it is characterized in that: this first circuit layer and this second circuit layer are comprised of the conductive silver paste material.
8. light conducting plate structure according to claim 1, it is characterized in that: this circuit diaphragm is comprised of the polyethylene terephthalate material, and this light guide plate is comprised of the Merlon material.
9. illuminated keyboard is characterized in that comprising:
Base plate;
Light conducting plate structure, it is arranged under this base plate, and this light conducting plate structure is the described light conducting plate structure of any one in the claim 1 to 8;
A plurality of buttons, it is arranged on this base plate, and each button is used for pressing this circuit diaphragm so that the first and second corresponding trigger point contacts with each other; And
At least one luminescence unit, the side that it is arranged at this light guide plate is used for emission of light so that at least one of them button towards these a plurality of buttons projects via this light guide plate.
10. method for manufacturing light guide plate is characterized in that comprising:
Circuit diaphragm and light guide plate are provided;
Form respectively the first circuit layer and second circuit layer on this light guide plate and this circuit diaphragm, this first circuit layer has at least one the first trigger point, has at least one the second trigger point on this second circuit layer;
With the mode of screen painting form the thermosetting supporting layer on this light guide plate with around be arranged at outside this at least one first trigger point or on this circuit diaphragm with around being arranged at outside this at least one second trigger point; And
Attach this circuit diaphragm on this light guide plate, so that this second circuit layer and this first circuit layer are toward each other, and make this at least one first trigger point to should at least one the second trigger point, and this at least one first trigger point and this at least one second trigger point via this thermosetting supporting layer a gap apart.
11. method for manufacturing light guide plate according to claim 10 is characterized in that: this thermosetting supporting layer is comprised of light-transmitting materials.
12. method for manufacturing light guide plate according to claim 11 is characterized in that: this thermosetting supporting layer is comprised of ultraviolet curable resin.
13. method for manufacturing light guide plate according to claim 10, it is characterized in that: this thermosetting supporting layer has at least one air flue of escaping, and flows to outside this thermosetting supporting layer so that the air between this thermosetting supporting layer, this light guide plate and this circuit diaphragm can be escaped via this air flue.
14. method for manufacturing light guide plate according to claim 10 is characterized in that: attach this circuit diaphragm and comprise in the step on this light guide plate: with the mode of screen painting form cementing layer outside this thermosetting supporting layer so that this circuit diaphragm is adhered on this light guide plate.
15. method for manufacturing light guide plate according to claim 10 is characterized in that: form respectively this first circuit layer and this second circuit layer on this circuit diaphragm and the step on this light guide plate comprise: form respectively this first circuit layer and this second circuit layer on this circuit diaphragm and on this light guide plate in the mode of screen painting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105815885A CN103077842A (en) | 2012-12-28 | 2012-12-28 | Light guide plate structure, luminous keyboard and production method of light guide plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105815885A CN103077842A (en) | 2012-12-28 | 2012-12-28 | Light guide plate structure, luminous keyboard and production method of light guide plate structure |
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| Publication Number | Publication Date |
|---|---|
| CN103077842A true CN103077842A (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105815885A Pending CN103077842A (en) | 2012-12-28 | 2012-12-28 | Light guide plate structure, luminous keyboard and production method of light guide plate structure |
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| CN (1) | CN103077842A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712837A (en) * | 2017-10-25 | 2019-05-03 | 致伸科技股份有限公司 | Key board unit |
| CN114520122A (en) * | 2020-11-18 | 2022-05-20 | 重庆达方电子有限公司 | Backlight device for luminous keyboard |
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| US4391845A (en) * | 1981-11-19 | 1983-07-05 | Oak Industries Inc. | Method of making a membrane switch |
| EP0727796A2 (en) * | 1995-02-16 | 1996-08-21 | Rafi GmbH & Co Elektrotechnische Spezialfabrik | Layered keyboard |
| CN2379973Y (en) * | 1999-06-07 | 2000-05-24 | 富金精密工业(深圳)有限公司 | Keyboard device |
| CN201426116Y (en) * | 2009-05-21 | 2010-03-17 | 科晶馨科技股份有限公司 | Film circuit board structure of capacitance-type keyboard |
| CN102543539A (en) * | 2010-12-31 | 2012-07-04 | 致伸科技股份有限公司 | Luminous keyboard |
| CN102623226A (en) * | 2012-04-06 | 2012-08-01 | 薛志勇 | Method for manufacturing membrane panel |
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- 2012-12-28 CN CN2012105815885A patent/CN103077842A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391845A (en) * | 1981-11-19 | 1983-07-05 | Oak Industries Inc. | Method of making a membrane switch |
| EP0727796A2 (en) * | 1995-02-16 | 1996-08-21 | Rafi GmbH & Co Elektrotechnische Spezialfabrik | Layered keyboard |
| CN2379973Y (en) * | 1999-06-07 | 2000-05-24 | 富金精密工业(深圳)有限公司 | Keyboard device |
| CN201426116Y (en) * | 2009-05-21 | 2010-03-17 | 科晶馨科技股份有限公司 | Film circuit board structure of capacitance-type keyboard |
| CN102543539A (en) * | 2010-12-31 | 2012-07-04 | 致伸科技股份有限公司 | Luminous keyboard |
| CN102623226A (en) * | 2012-04-06 | 2012-08-01 | 薛志勇 | Method for manufacturing membrane panel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109712837A (en) * | 2017-10-25 | 2019-05-03 | 致伸科技股份有限公司 | Key board unit |
| CN114520122A (en) * | 2020-11-18 | 2022-05-20 | 重庆达方电子有限公司 | Backlight device for luminous keyboard |
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Application publication date: 20130501 |