CN105045403A - Keyboard and terminal device - Google Patents

Keyboard and terminal device Download PDF

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Publication number
CN105045403A
CN105045403A CN201510520026.3A CN201510520026A CN105045403A CN 105045403 A CN105045403 A CN 105045403A CN 201510520026 A CN201510520026 A CN 201510520026A CN 105045403 A CN105045403 A CN 105045403A
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CN
China
Prior art keywords
keyboard
pcb board
led element
button
film circuit
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
Application number
CN201510520026.3A
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Chinese (zh)
Inventor
黄修海
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Individual
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Individual
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Publication date
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Priority to CN201510520026.3A priority Critical patent/CN105045403A/en
Publication of CN105045403A publication Critical patent/CN105045403A/en
Pending legal-status Critical Current

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Abstract

The present invention provides a keyboard comprising: a plurality of keys; film circuit wafers that are used for triggering key functions and are installed on the lower surfaces of the keys; and a PCB board that is installed on the lower surface of the film circuit wafer, wherein LED elements corresponding to the keys and an integrated circuit processor for controlling the LED elements to emit light are installed on the surface of the PCB board. one LED element is correspondingly installed on the lower surface of each key, the on and off of all the LED elements are controlled by the integrated circuit processor, and the LED elements are used as light sources for directly irradiating the keys to ensure that the back-light brightness of each key is obviously increased, and the overall back-light of the keyboard is uniform; and meanwhile, the integrated circuit processor can control all the LED elements to emit light separately, a plurality of the LED element to emit light at the same time, and all the LED elements to emit light, so that an effect with single key back-light, local back-light or overall back-light is achieved. The keys are not in direct contact with the PCB board but in contact with the film circuit wafers to realize a key triggering function.

Description

A kind of keyboard and terminal device
Technical field
The present invention relates to technical field of electronic equipment, in particular, relate to a kind of keyboard and terminal device.
Background technology
At present, keyboard common on market has membrane keyboard and mechanical keyboard, and mechanical keyboard has pcb board in bottom, and the above is that independently Switch is to carry out the button of signal triggering by more than 100, and namely each button has an independent switch to control to close.Thin film type keyboard framework is very simple, and be divided into three layers from top to bottom, except upper and lower covers, keycap, after taking keyboard apart, also can see rubber cap, three films, also can see slight circuit board, and the IC on circuit board.The principle of thin film type keyboard is quite simple, in three films, the top is cathode circuit, bottom is cathode traces, and centre is nonconducting plastic sheet, then puts up and (generally includes keycap, keycap underside module by die block, and rubber cap), when finger is depressed from keycap, top will contact energising with underlying film, namely completes conducting.And so-called thin film type keyboard, Switch is made up of three-layer thin-film, is diverse with mechanical keyboard framework.
Because backlight membrane keyboard of the prior art is owing to being provided with LED-backlit bar at pcb board, the light sent by LED-backlit bar is diffused into the bottom of keyboard by transparent light guide plate, then luminous position opening is being needed, light just can be projected away by opening part, illuminate transparent keycap, thus light keyboard.The defect of this luminescent method is that LED luminescence can only control the luminescence of LED-backlit bar by PCB, and make whole keyboard Integral luminous, the transparency of light guide plate directly affects the brightness of backlight simultaneously.
Therefore, membrane keyboard of the prior art has following shortcoming, and the first, the method for the color prior art of the region backlight of the thin-film light emitting keyboard on market carries out cutting light splitting by light guide plate, but this way can only arrive the region of column direction, transverse direction can not be done, more can not independently arrive each button, therefore can not accomplish single file color or single button color controlling, can not Region control, namely keyboard can only overall backlight, can not region backlight, can not single key-press backlight; The second, what the thin-film light emitting keyboard on market utilized is generally full wafer light guide plate, and reflector is luminous, not takes light source direct projection to complete, causes whole backlight bright all not.
In sum, how effectively solving keyboard any local backlight and single key-press backlight, the problem such as also have backlight bright not, is current those skilled in the art's urgent problem.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of keyboard, its any local backlight and single key-press backlight can be controlled, and backlight obviously increasing.
For achieving the above object, the invention provides following technical scheme:
A kind of keyboard, comprising:
Multiple button;
For the film circuit wafer of trigger key function, be arranged at the lower surface of described button;
Be arranged at the pcb board of described film circuit wafer lower surface, its surface is provided with the LED element corresponding with described button and the integrated circuit processor for controlling described LED element luminescence.
Preferably, in above-mentioned keyboard, also comprise the lower cover being arranged at described pcb board lower surface, between described lower cover and described pcb board, rib is set.
Preferably, in above-mentioned keyboard, described button comprises keycap, the middle plate be connected with described keycap lower surface, the machinery that is connected with described middle plate lower surface are good for core and are arranged at the silica gel seat that core lower surface is good for by described machinery.
Preferably, in above-mentioned keyboard, described film circuit wafer comprises the upper circuit layer as positive pole, the lower circuit layer as negative pole and is arranged at interlayer between described upper circuit layer and described lower circuit layer.
Preferably, in above-mentioned keyboard, described film circuit wafer surface is provided with for the contact center with described key contact, and described contact center is corresponding with described button, and and the position of described LED element in the horizontal there is interval.
Preferably, in above-mentioned keyboard, the circle of described contact center to be radius be 1.5mm.
Preferably, in above-mentioned keyboard, also comprise being arranged at and increase the weight of steel plate between described pcb board and described film circuit wafer, described in increase the weight of position corresponding with described LED element on steel plate and offer through hole.
Preferably, in above-mentioned keyboard, also comprise the organic glass be arranged between described pcb board and described film circuit wafer.
Preferably, in above-mentioned keyboard, also comprising the anti-subsides parts for adjusting flatness, being arranged at the surrounding of LED element described in described pcb board upper surface, and covering described button center.
The present invention also provides a kind of terminal device, comprises the keyboard described in above-mentioned any one.
As can be seen from technique scheme, a kind of keyboard provided by the present invention, comprising: multiple button; For the film circuit wafer of trigger key function, be arranged at the lower surface of described button; Be arranged at the pcb board of described film circuit wafer lower surface, its surface is provided with the LED element corresponding with described button and the integrated circuit processor for controlling described LED element luminescence.The present invention is provided with a LED element in each button lower surface correspondence, whether all LED element control to open by integrated circuit processor, backlight membrane keyboard in hinge structure eliminates light guide plate, LED element is as light source direct irradiation button, the backlight illumination of each button is obviously increased, and the overall even back of keyboard, simultaneously, due to integrated circuit processor, can to control all LED element luminous separately, the LED element luminescence that multiple LED element is simultaneously luminous and all, so, achieve single key-press backlight, the effect of local backlight or overall backlight.Backlight mechanical keyboard in hinge structure, button itself is not directly contact with pcb board, but contacts with film circuit wafer, achieves button Trigger Function.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The composition structural drawing of a kind of keyboard that Fig. 1 provides for the embodiment of the present invention;
The keyboard vertical view that Fig. 2 provides for the embodiment of the present invention;
The keyboard rear view that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1,2, the composition structural drawing of 3, Fig. 1 a kind of keyboards provided for the embodiment of the present invention; The keyboard vertical view that Fig. 2 provides for the embodiment of the present invention; The keyboard rear view that Fig. 3 provides for the embodiment of the present invention.
In a kind of embodiment, provide a kind of keyboard, comprise multiple button; For the film circuit wafer 106 of trigger key function, be arranged at the lower surface of described button; Be arranged at the pcb board 108 of described film circuit wafer 106 lower surface, its surface is provided with the LED element 109 corresponding with described button and the integrated circuit processor for controlling the luminescence of described LED element 109.
Concrete, the keyboard structure that the present embodiment provides from the bottom up order is: lower cover, pcb board 108, increase the weight of steel plate 107, film circuit wafer 106, silica gel seat 105, mechanical keys core 104, middle plate 103, cover 102 and keycap 101.On keyboard, also comprise the lower cover being arranged at described pcb board 108 lower surface, rib 112 is set between described lower cover and described pcb board 108, the button of all functions is all in the superiors' arrangement, and button comprises keycap 101, the middle plate 103 is connected with keycap lower surface, the machinery that is connected with middle plate 103 lower surface are good for core 104 and are arranged at mechanical silica gel seat 105 of being good for core 104 lower surface.The realization of the keypress function of each button is all realized by film circuit wafer 106.Film circuit wafer 106 comprises the upper circuit layer as positive pole, the lower circuit layer as negative pole and is arranged at interlayer between upper circuit layer and lower circuit layer.Wherein, upper circuit layer, lower circuit layer all adopt mylar of good performance (PET) as the carrier of on-off circuit figure, and thereon with conductive silver paste and conductive carbon paste on special technique silk-screen, make it have electric conductivity, its thickness is generally within 0.05-0.175mm, modal is with 0.125mmPET, and middle interlayer is between circuit with lower circuit layer and also plays a part to seal and be connected, general employing PET double faced adhesive tape.When finger is depressed from keycap, upper circuit layer will contact energising with lower circuit layer, namely completes conducting.
The triggering of keypress function and backlight separately realize, and keypress function is realized by film circuit wafer 106, and backlight is placed on undermost pcb board 108 and has controlled.Be arranged at the pcb board 108 of described film circuit wafer 106 lower surface, its surface is provided with the LED element 109 corresponding with described button and the integrated circuit processor for controlling the luminescence of described LED element 109.Wherein, the LED element 109 on pcb board 108 can become the LED element of different colours by Optional assembling, LED element 109 be encapsulated as 3528 types, be highlighted type LED, the backlight LED circuit of each button can go to arrange as required.The main control processor of pcb board 108 can control integral keyboard luminescence, is generally arranged on the upper right corner of keyboard, and integrated circuit processor MCU, for whether controlling the work of LED element 109, namely controls the duty of LED element 109.If the integrated circuit processor MCU of choice for use DICE, can use a switching pcb board, integrated circuit processor MCU and switching pcb board are integrated, and are directly bundled on pcb board; If have selected the integrated circuit processor MCU of SMD, be directly bundled on PCB base plate.Integrated circuit processor MCU need peripheral element to support it realizes controlling functions, as resistance, electric capacity, the luminescence of LED element can not only be controlled, the keypress function realizing keyboard can also be coordinated with film circuit wafer.Keyboard in the present embodiment not only can control to backlight color and the brightness of each button, and is suitable for multiple ID keyboard, is not limited to keyboard profile.Meanwhile, the local luminescence of keyboard has various ways, and the demand according to user is arranged, all within protection domain.
Further, described film circuit wafer 106 surface is provided with for the contact center 110 with described key contact, and described contact center 110 is corresponding with described button, and and the position of described LED element in the horizontal there is interval.The contact center 110 of the button on film circuit wafer 106 surface overlaps with the centre of button, contact center 110 is preferably the circle that radius is 1.5mm, the partition aperture of film circuit wafer 106 is 7mm, and stagger with the contact center 110 of button in the position of LED element 109, at a distance of certain distance, reason has two, first, contact center 110 mainly through film circuit wafer 106 realizes the Trigger Function of button, therefore the upper circuit layer of film circuit wafer 106 and lower circuit layer are the contact centers 110 in film circuit wafer 106 by the main distributed areas of silver slurry printing, and the contact center 110 after the printing of silver slurry is lighttight substantially, if LED element 109 is positioned at immediately below contact center 110, then can cause light can not completely through, affect backlight illumination, the second, the character on keycap 101 surface is not printed on central point, and the object of LED element 109 is illuminated by the character on keycap 101 surface, and therefore, the setting position of LED element 109 is preferably corresponding with the position of character.
Further, on the basis of above-described embodiment, keyboard also comprises being arranged at and increases the weight of steel plate 107 between described pcb board 108 and described film circuit wafer 106, described in increase the weight of position corresponding with described LED element 109 on steel plate 107 and offer through hole 111.Owing to not allowing the position occurring hollow out in 3mm below the contact center of film circuit wafer 106, otherwise there will be the problem that button weight is bad, in order to make button weight good, arrange between pcb board 108 and film circuit wafer 106 and increase the weight of steel plate 107, in order to ensure that LED element 109 can printing opacity smoothly, the through hole 111 that at least formed objects offered by steel plate 107 is increased the weight of, the shape of through hole 111 and the mating shapes of LED element 109 being positioned at directly over LED element 109.
Further, increase the weight of steel plate 107 if do not used, keyboard also comprises the organic glass be arranged between described pcb board and described film circuit wafer.Increase the weight of steel plate identical with the thickness of organic glass, because organic glass itself can printing opacity, therefore do not need perforate can complete light transmission.
Further, increase the weight of steel plate or organic glass if do not used, keyboard also comprises the anti-subsides parts for adjusting flatness, is arranged at the surrounding of LED element 109 described in described pcb board 108 upper surface, and covers described button center.If do not put increase the weight of steel plate 107 or organic glass time, film circuit wafer 106 is just directly laid in the surface of pcb board 108, the volume height of LED element 109 causes out-of-flatness, keep smooth to make the front of printing opacity, film bored a hole and there will be film circuit wafer 106 cabling difficulty, can only arrange around LED element 109 and instead paste parts, except LED body, coordinate some Chip-Rs or control IC etc., but the rib position of lower cover will be avoided.
Keyboard provided by the invention and the luminous same principle of mechanical keyboard, by installing the LED element 109 of high brightness on the correspondence position of pcb board 108 button, namely a LED element 109 is provided with in each button lower surface correspondence, whether all LED element 109 control to open by integrated circuit processor, backlight membrane keyboard in hinge structure eliminates light guide plate, LED element 109 is as light source direct irradiation button, the backlight illumination of each button is obviously increased, and the overall even back of keyboard, simultaneously, because integrated circuit processor can control the luminescence separately of all LED element 109, LED element 109 luminescence that multiple LED element 109 is simultaneously luminous and all, so, achieve single key-press backlight, the effect of local backlight or overall backlight.Backlight mechanical keyboard in hinge structure, button itself is not directly contact with pcb board 108, but contacts with film circuit wafer, achieves button Trigger Function.The enough bright diversification again of keyboard back light provided by the invention, namely reach the backlight effect of mechanical keyboard, can make again button independent luminous, local is luminous or Integral luminous, reaches the required good result of user.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. a keyboard, is characterized in that, comprising:
Multiple button;
For the film circuit wafer of trigger key function, be arranged at the lower surface of described button;
Be arranged at the pcb board of described film circuit wafer lower surface, its surface is provided with the LED element corresponding with described button and the integrated circuit processor for controlling described LED element luminescence.
2. keyboard as claimed in claim 1, is characterized in that, also comprise the lower cover being arranged at described pcb board lower surface, arrange rib between described lower cover and described pcb board.
3. keyboard as claimed in claim 2, is characterized in that, described button comprises keycap, the middle plate be connected with described keycap lower surface, the machinery that is connected with described middle plate lower surface are good for core and are arranged at the silica gel seat that core lower surface is good for by described machinery.
4. keyboard as claimed in claim 3, it is characterized in that, described film circuit wafer comprises the upper circuit layer as positive pole, the lower circuit layer as negative pole and is arranged at interlayer between described upper circuit layer and described lower circuit layer.
5. keyboard as claimed in claim 4, is characterized in that, described film circuit wafer surface is provided with for the contact center with described key contact, and described contact center is corresponding with described button, and and the position of described LED element in the horizontal there is interval.
6. keyboard as claimed in claim 5, is characterized in that, the circle of described contact center to be radius be 1.5mm.
7. the keyboard as described in any one of claim 1 to 6, is characterized in that, also comprises being arranged at increasing the weight of steel plate between described pcb board and described film circuit wafer, described in increase the weight of position corresponding with described LED element on steel plate and offer through hole.
8. the keyboard as described in any one of claim 1 to 6, is characterized in that, also comprises the organic glass be arranged between described pcb board and described film circuit wafer.
9. the keyboard as described in any one of claim 1 to 6, is characterized in that, also comprising the anti-subsides parts for adjusting flatness, being arranged at the surrounding of LED element described in described pcb board upper surface, and covering described button center.
10. a terminal device, is characterized in that, comprises the keyboard described in any one of claim 1 to 9.
CN201510520026.3A 2015-08-21 2015-08-21 Keyboard and terminal device Pending CN105045403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510520026.3A CN105045403A (en) 2015-08-21 2015-08-21 Keyboard and terminal device

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Application Number Priority Date Filing Date Title
CN201510520026.3A CN105045403A (en) 2015-08-21 2015-08-21 Keyboard and terminal device

Publications (1)

Publication Number Publication Date
CN105045403A true CN105045403A (en) 2015-11-11

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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106997820A (en) * 2016-01-25 2017-08-01 徐孝海 The mechanical keyboard of water proof and dust proof and interchangeable axis body
US10394338B2 (en) 2016-02-18 2019-08-27 Cooler Master Technology Inc. Keyboard
CN113646726A (en) * 2019-04-10 2021-11-12 戴尔产品有限公司 Information handling system keyboard discrete line illumination

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2669262Y (en) * 2003-12-30 2005-01-05 达方电子股份有限公司 Luminous press-button
CN201616069U (en) * 2010-01-04 2010-10-27 精元电脑股份有限公司 Keyboard structure with luminous components
US20120090968A1 (en) * 2010-10-15 2012-04-19 Primax Electronics Ltd. Keyboard
US20120235837A1 (en) * 2011-03-18 2012-09-20 Ching-Cheng Tsai Membrane Circuit Board and Keyboard Having the Same
CN202534569U (en) * 2012-04-25 2012-11-14 嘉兴淳祥电子科技有限公司 Illuminant keyboard structure
CN203055745U (en) * 2012-12-19 2013-07-10 致伸科技股份有限公司 Keyboard device with luminous keys
CN103681067A (en) * 2013-12-02 2014-03-26 珠海恒宇新科技有限公司 Membrane keyboard with all-key conflict-free and special backlight functions
CN203644615U (en) * 2013-12-02 2014-06-11 珠海恒宇新科技有限公司 Film keyboard possessing N-key rollover and backlight functions
CN204464130U (en) * 2015-01-14 2015-07-08 深圳市烨光璇电子科技有限公司 Illuminated keyboard
CN204965333U (en) * 2015-08-21 2016-01-13 黄修海 Keyboard and terminal equipment

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2669262Y (en) * 2003-12-30 2005-01-05 达方电子股份有限公司 Luminous press-button
CN201616069U (en) * 2010-01-04 2010-10-27 精元电脑股份有限公司 Keyboard structure with luminous components
US20120090968A1 (en) * 2010-10-15 2012-04-19 Primax Electronics Ltd. Keyboard
US20120235837A1 (en) * 2011-03-18 2012-09-20 Ching-Cheng Tsai Membrane Circuit Board and Keyboard Having the Same
CN202534569U (en) * 2012-04-25 2012-11-14 嘉兴淳祥电子科技有限公司 Illuminant keyboard structure
CN203055745U (en) * 2012-12-19 2013-07-10 致伸科技股份有限公司 Keyboard device with luminous keys
CN103681067A (en) * 2013-12-02 2014-03-26 珠海恒宇新科技有限公司 Membrane keyboard with all-key conflict-free and special backlight functions
CN203644615U (en) * 2013-12-02 2014-06-11 珠海恒宇新科技有限公司 Film keyboard possessing N-key rollover and backlight functions
CN204464130U (en) * 2015-01-14 2015-07-08 深圳市烨光璇电子科技有限公司 Illuminated keyboard
CN204965333U (en) * 2015-08-21 2016-01-13 黄修海 Keyboard and terminal equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106997820A (en) * 2016-01-25 2017-08-01 徐孝海 The mechanical keyboard of water proof and dust proof and interchangeable axis body
CN106997820B (en) * 2016-01-25 2020-04-24 徐孝海 Waterproof dustproof mechanical keyboard with replaceable shaft body
US10394338B2 (en) 2016-02-18 2019-08-27 Cooler Master Technology Inc. Keyboard
US11126271B2 (en) 2016-02-18 2021-09-21 Cooler Master Technology Inc. Keyboard
CN113646726A (en) * 2019-04-10 2021-11-12 戴尔产品有限公司 Information handling system keyboard discrete line illumination
CN113646726B (en) * 2019-04-10 2023-12-29 戴尔产品有限公司 Discrete row illumination for information handling system keyboard

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