[go: up one dir, main page]

CN109585204A - Keyboard structure - Google Patents

Keyboard structure Download PDF

Info

Publication number
CN109585204A
CN109585204A CN201710910306.4A CN201710910306A CN109585204A CN 109585204 A CN109585204 A CN 109585204A CN 201710910306 A CN201710910306 A CN 201710910306A CN 109585204 A CN109585204 A CN 109585204A
Authority
CN
China
Prior art keywords
keycap
film layer
light
opening
extension
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.)
Granted
Application number
CN201710910306.4A
Other languages
Chinese (zh)
Other versions
CN109585204B (en
Inventor
蔡磊龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primax Electronics Ltd
Original Assignee
Primax Electronics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Primax Electronics Ltd filed Critical Primax Electronics Ltd
Priority to CN201710910306.4A priority Critical patent/CN109585204B/en
Publication of CN109585204A publication Critical patent/CN109585204A/en
Application granted granted Critical
Publication of CN109585204B publication Critical patent/CN109585204B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches 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
    • H01H13/84Switches 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 ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02Details
    • H01H13/26Snap-action arrangements depending upon deformation of elastic members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00Tactile feedback
    • H01H2215/03Sound

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

The present invention provides a kind of keyboard structure, including keycap, transparent thin film layer and elastic element.Transparent thin film layer is set to the lower section of keycap comprising: the first opening corresponding to keycap;There is ganoine thin film layer extension to be formed in the first aperture inner edge;And wall, it is set under ganoine thin film layer, to form gap;Elastic element is set between keycap and transparent thin film layer, and is had and pressed portion;Wherein, when pressed by external force keycap, elastic element, which generates deformation, to be made the portion of pressing to bottom offset and compresses extension, extension is set to generate Bending Deformation in gap, when external force release, elastic element elastic recovery makes the portion of pressing far from extension, and extension elastic recovery simultaneously generates the sound.

Description

Keyboard structure
Technical field
The present invention relates to a kind of structure of input unit more particularly to a kind of keyboards and its backing structure.
Background technique
Now in society, the use of electronic product has become indispensable a part in life, all foods, clothing, firmly, It goes, educate, find pleasure in, every sample is all related with electronic product.In order to allow electronic product to be more convenient to carry or use, the design of electronic product More become frivolous.Usual electronic product is equipped with keyboard, when such as the structure of keyboard being mechanical, usually all with keyboard bearing Setting, and the type of keyboard bearing would generally be distinguished with cyan, red, black, the dark brown and colors such as green, different colours Keyboard bearing can also generate different percussion sound and pressing power in pressing, thus can form different percussions and feel, and Percussion sound appropriate and pressing power can also allow user to maintain good typing rhythm.
And in order to make electronic product more frivolous, in general, it can all try to simplify the support construction in keyboard structure Or the configuration of elastic construction, or reduce the height of support construction and achieve the effect that integral keyboard volume reduction.Therefore, lightening Keyboard structure in keyboard does not often have the design of keyboard bearing, causes keyboard to be difficult to generate percussion sound appropriate, such as This, which may cause user, can not immediately confirm whether the pressing of keyboard has been completed, even generate uncomfortable pressing hand Sense, and user is allowed to be unable to maintain that original good typing rhythm.
Therefore, it how in the case where keyboard structure simplifies and designs, remains to that keyboard is allowed to generate percussion sound appropriate, for this Invent the technical task to be solved.
Summary of the invention
The main object of the present invention is to provide a kind of keyboard structure that can produce appropriate percussion sound.
For up to purpose above-mentioned, the present invention provides a kind of keyboard structure comprising including keycap, transparent thin film layer and elasticity Element.Transparent thin film layer is set to the lower section of keycap comprising: the first opening corresponds to keycap;Ganoine thin film layer has extremely A few extension, extension are formed in the first aperture inner edge;And wall, it is set under ganoine thin film layer, to be formed Gap;Elastic element is set between keycap and transparent thin film layer, and is had and pressed portion;Wherein, when pressed by external force keycap, bullet Property element generate deformation make the portion of pressing to bottom offset and compress extension, make extension in gap generate Bending Deformation, work as external force When release, elastic element elastic recovery makes the portion of pressing far from extension, and extension elastic recovery simultaneously generates the sound.
In above-mentioned better embodiment, elastic element includes flexible support portion and supports with what the portion of pressing was oppositely arranged Socket part, abutting part are fixed on ganoine thin film layer and give keycap to provide elastic-restoring force to abut keycap, flexible support portion.
In above-mentioned better embodiment comprising the thin film switch layer being set under transparent thin film layer, thin film switch Layer is switched with correspond to the first opening at least one, and is switched with light open-work.
In above-mentioned better embodiment, wherein the portion of pressing protrudes into the touching of the first opening parallel connection and opens when pressed by external force keycap It closes, to generate keyboard signal.
In above-mentioned better embodiment comprising the flexible circuit board being set under thin film switch layer, flexible circuit Plate includes that light-emitting component and the second opening corresponding to switch, light-emitting component are set to the lower surface of flexible circuit board and correspond to Second opening.
In above-mentioned better embodiment, wherein light-emitting component sequentially passes through the second opening, light to generate light, light Line open-work and the first opening, and keycap is diffused to by transparent thin film layer.
In above-mentioned better embodiment comprising the support plate being set under flexible circuit board, support plate have the Three openings, third are open to accommodate light-emitting component.
In above-mentioned better embodiment, wherein light-emitting component is light-emitting diodes module or electroluminescence module.
In above-mentioned better embodiment, the wherein material of transparent thin film layer are as follows: polyethylene terephthalate or poly- carbon Acid esters.
Detailed description of the invention
Figure 1A is the stereoscopic schematic diagram of keyboard structure of the present invention;
Figure 1B is the sectional view of keyboard structure of the present invention;
Fig. 2A to 2B is the schematic diagram of keyboard actuation of the present invention;
Fig. 3 A is the schematic top plan view of the first embodiment of the extension of ganoine thin film layer;And
Fig. 3 B is the schematic top plan view of the second embodiment of the extension of ganoine thin film layer.
[symbol description]
The gap G
10 keyboard structures
11 keycaps
12 elastic elements
121 abutting parts
122 flexible support portions
123 press portion
13 transparent thin film layers
131 ganoine thin film layers
131a, 131b extension
132 walls
133 first openings
14 thin film switch layers
141 switches
1411 light open-works
15 flexible circuit boards
151 second openings
16 support plates
161 thirds opening
17 light-emitting components
18 support components
Specific embodiment
Advantages of the present invention and feature and reach its method will be carried out referring to illustrative examples and drawings it is more detailed It describes and is easier to understand.However, the present invention can realize in different forms and not it is understood that being only limitted to set forth herein Embodiment.On the contrary, these provided embodiments will make the disclosure more thorough for skilled artisan With convey scope of the invention comprehensively and completely.
Firstly, please referring to shown in Figure 1A, Figure 1A is the stereoscopic schematic diagram of keyboard structure of the present invention.In Figure 1A, the present invention Keyboard structure 10 include: keycap 11, elastic element 12, transparent thin film layer 13, thin film switch layer 14, flexible circuit board 15, branch Fagging 16, light-emitting component 17 and support component 18.And transparent thin film layer 13, thin film switch layer 14 and flexible circuit board 15 by upper and Under be sequentially arranged at the top of support plate 16, and support plate 16 is then to support entire keyboard structure 10.
Then, it please refers to shown in Figure 1B, Figure 1B is the sectional view of keyboard structure of the present invention.In Figure 1B, the film Switching layer 14, which has, corresponds at least switch 141 that keycap 11 is arranged, and the center of switch 141 for light with passing through Light open-work 1411, in this present embodiment, the shape of light open-work 1411 are circle, but in practical application, light open-work 1411 shape also can be cross or other geometries.
The transparent thin film layer 13 is then set on thin film switch layer 14, can be used as the transfer medium of keyboard back light, Make light that can diffuse to the surface of keycap 11 by transparent thin film layer 13.Wherein, transparent thin film layer 13 has ganoine thin film layer 131, wall 132, and the first opening 133 being arranged corresponding to switch 141.In this present embodiment, ganoine thin film layer 131 can Extend an extension 131a in the inner edge of the first opening 133, and the thickness of the extension 131a then thickness with ganoine thin film layer 131 It spends identical;Wall 132 is then set under ganoine thin film layer 131, and to separate ganoine thin film layer 131 and thin film switch layer 14, it allows between ganoine thin film layer 131 and thin film switch layer 14 and generates clearance G.In addition, the material of transparent thin film layer 13 can be poly- pair Polyethylene terephthalate (Polyethylene terephthalate, PET) or polycarbonate (Polycarbonate, PC).
Please continue to refer to Figure 1B, the lower section of keycap 11 is then arranged in the elastic element 12, i.e., between keycap 11 with it is transparent Between film layer 14, and correspond to the position of the first opening 133.And elastic element 12 includes: abutting part 121, flexible support portion 122 and press portion 123.Wherein, the top that portion 123 is set to the inner space of dome-type flexible support portion 122 is pressed, and Position corresponding to switch 141;Abutting part 121 is then disposed relative to the other end in the portion of pressing 123, and to abut keycap 11;Elastic element 12 is fixed on the ganoine thin film layer of transparent thin film layer 13 by the mode that flexible support portion 122 can then bond On 133, and keycap 11 is given to provide elastic-restoring force.In one embodiment of the present invention, elastic element 12 can be by having Have made by rubber material or the silica gel material of translucent effect.
The flexible circuit board 15 is set under thin film switch layer 14, i.e., between thin film switch layer 14 and support plate 16 it Between.The second opening 151 that flexible circuit board 15 has light-emitting component 17 and is arranged corresponding to switch 141.Wherein, light-emitting component 17 It is set to the lower surface of flexible circuit board 15 and corresponds to the position of the second opening 151, so that light caused by light-emitting component 17 Line can sequentially pass through the second opening 151, the light open-work 1411 of switch 141 and the first opening 133, can then pass through transparent membrane Layer 13 or have translucent effect elastic element 12, light is diffused into keycap 11, allow keycap 11 surface or character symbol area (being not shown in the drawing) generates luminous visual effect.And being set to the support plate 16 under flexible circuit board 15 then has to hold Set the third opening 161 of light-emitting component 17.On the other hand, flexible circuit board 15 also to provide electric power give thin film switch layer 14 and Light-emitting component 17, and light-emitting component 17 can are as follows: light-emitting diode (Light Emitting Diode, LED) module is electrically excited Light (Electro Luminescence, EL) module.
The support component 18 is then set between keycap 11 and support plate 16, and support component 18 can be respectively pivoted to (being not shown in the drawing) keycap 11 and support plate 16 carry out upper and lower movement relative to support plate 16 with thus guide keycap 10.In In the present embodiment, support component 18 can be scissor leg structure, but in practical application, support component 18 also can for V-type, A type or Two parallel link mechanisms.
Fig. 2A to 2B is please referred to, Fig. 2A to 2B is the schematic diagram of keyboard actuation of the present invention.In Fig. 2A, when pressed by external force key When cap 11, the lower surface of keycap 11 can compress the abutting part 121 of elastic element 12, and allow the flexible support portion of elastic element 12 122 generate deformation, portion 123 are pressed at this time then to bottom offset, and compress extension 131a, so that extension 131a is in wall 132 are formed by clearance G and generate Bending Deformation.And press portion 123 and then continue to protrude into the first opening 133 and contact-making switch 141, Switch 141 is set to be toggled and generate corresponding keyboard signal.
Then, Fig. 2 B is please referred to, when external force release, elastic element 12 then provides keycap 11 upward elastic-restoring force, And then it pushes keycap 11 to rise and makes its reset.The portion 123 that presses of elastic element 12 also shifts up at this time, and far from extension 131a.And when extension 131a is no longer influenced by when compressing of the portion of pressing 123, extension 131a then carries out elastic recovery and produces simultaneously The raw sound.In this way, can be by extension 131a elastic recovery when the produced sound so that the sound that keyboard taps is more clear It is crisp, it allows user when using keyboard is thinned, can still maintain good typing rhythm.
Please refer to the schematic top plan view of the first embodiment for the extension that Fig. 3 A and Fig. 3 B, Fig. 3 A are ganoine thin film layer;Figure 3B is the schematic top plan view of the second embodiment of the extension of ganoine thin film layer.In Fig. 3 A, by 131 (such as Fig. 1 of ganoine thin film layer It is shown) the extension 131a that is extended is formed in the inner edge of the first opening 133, and its one end position extended is in the portion of pressing 123 Displacement path on.In the present invention, its elastic recovery when institute can be adjusted by adjusting the thickness or length of extension 131a Generate the tone of the sound.Wherein, when the thickness of extension 131a is thinner or length more in short-term, when elastic recovery the produced sound Tone it is higher;And when the thickness of extension 131a is thicker or length is longer, when elastic recovery the produced sound tone It is lower.
In Fig. 3 B, ganoine thin film layer 131 also can extend another extension from the opposite other side extension 131a 131b, in this way, can be by two extension 131a and 131b elastic recoverys when the produced sound, increase keyboard knock sound Volume.Though the inner edge that the present invention is only set forth in the first opening 133 forms an extension and opposite two sides form two and prolong The embodiment of extending portion, but in practical application, with can any position according to demand in the inner edge of the first opening 133 formed it is more A extension, without being limited with embodiment proposed by the invention.
Compared to the prior art, produced sound when keyboard structure provided by the present invention can be by extension elastic recovery It rings, keyboard is allowed to generate percussion sound appropriate, so that the sound that keyboard taps is more clear and melodious.And allow user in using slim When changing keyboard, good typing rhythm can be still maintained.On the other hand, opening accommodating flexible circuit board is formed by with support plate The set-up mode of light-emitting component also can effectively reduce the thickness of integral keyboard build stack;A therefore the present invention actually great industry The creation of value.
The present invention appointed as those skilled in the art apply craftsman think and be it is all as modify, it is so neither de- as attached claim is intended to Protection.

Claims (9)

1.一种键盘结构,其特征在于,包括:1. a keyboard structure, is characterized in that, comprises: 一键帽;one key cap; 一透明薄膜层,设置于该键帽的下方,其包括:A transparent film layer, arranged under the keycap, includes: 一第一开口,对应于该键帽;a first opening, corresponding to the keycap; 一硬质薄膜层,具有至少一延伸部,该至少一延伸部形成于该第一开口内缘;以及a hard film layer having at least one extension part formed on the inner edge of the first opening; and 一间隔层,设置于该硬质薄膜层之下,用以形成一间隙;以及a spacer layer disposed under the hard film layer to form a gap; and 一弹性元件,设置于该键帽与该透明薄膜层之间,且具有一触压部;an elastic element, disposed between the keycap and the transparent film layer, and having a touch portion; 其中,当一外力按压该键帽时,该弹性元件产生形变使该触压部向下位移并抵压该至少一延伸部,使该至少一延伸部于该间隙产生弯曲形变,当该外力释放时,该弹性元件弹性回复使该触压部远离该至少一延伸部,该至少一延伸部弹性回复并产生声响。Wherein, when an external force presses the keycap, the elastic element is deformed so that the pressing part is displaced downward and presses against the at least one extension part, so that the at least one extension part bends and deforms in the gap, when the external force is released When the elastic element is elastically restored, the pressing portion is moved away from the at least one extension portion, and the at least one extension portion is elastically restored and generates a sound. 2.如权利要求1所述的键盘结构,其中该弹性元件包括一弹性支撑部及与该触压部相对设置的一抵接部,该抵接部用以抵接该键帽,该弹性支撑部固定于该硬质薄膜层并用以提供一弹性回复力予该键帽。2 . The keyboard structure of claim 1 , wherein the elastic element comprises an elastic supporting portion and an abutting portion opposite to the pressing portion, the abutting portion is used for abutting the keycap, and the elastic supporting portion is 2 . The part is fixed on the hard film layer and used to provide an elastic restoring force to the keycap. 3.如权利要求1所述的键盘结构,其包括设置于该透明薄膜层之下的一薄膜开关层,该薄膜开关层具有对应于该第一开口的至少一开关,且该至少一开关具有一光线透孔。3. The keyboard structure of claim 1, comprising a membrane switch layer disposed under the transparent film layer, the membrane switch layer having at least one switch corresponding to the first opening, and the at least one switch having A light through hole. 4.如权利要求3所述的键盘结构,其中当该外力按压该键帽时,该触压部伸入该第一开口并接触该至少一开关,以产生一键盘信号。4 . The keyboard structure of claim 3 , wherein when the external force presses the keycap, the pressing portion extends into the first opening and contacts the at least one switch to generate a keyboard signal. 5 . 5.如权利要求3所述的键盘结构,其包括设置于该薄膜开关层之下的一软性电路板,该软性电路板包括一发光元件及对应于该至少一开关的一第二开口,该发光元件设置于该软性电路板的下表面且对应于该第二开口。5. The keyboard structure of claim 3, comprising a flexible circuit board disposed under the membrane switch layer, the flexible circuit board comprising a light-emitting element and a second opening corresponding to the at least one switch , the light-emitting element is arranged on the lower surface of the flexible circuit board and corresponds to the second opening. 6.如权利要求5所述的键盘结构,其中该发光元件用以产生一光线,该光线依序穿过该第二开口、该光线透孔及该第一开口,并通过该透明薄膜层扩散至该键帽。6 . The keyboard structure of claim 5 , wherein the light-emitting element is used to generate a light, and the light passes through the second opening, the light through hole and the first opening in sequence, and diffuses through the transparent film layer. 7 . to the keycap. 7.如权利要求5所述的键盘结构,其包括设置于该软性电路板之下的一支撑板,该支撑板具有一第三开口,该第三开口用以容置该发光元件。7 . The keyboard structure of claim 5 , comprising a support plate disposed under the flexible circuit board, the support plate has a third opening for accommodating the light-emitting element. 8 . 8.如权利要求5所述的键盘结构,其中该发光元件为发光二极体模块或电激发光模块。8. The keyboard structure of claim 5, wherein the light-emitting element is a light-emitting diode module or an electroluminescent module. 9.如权利要求1所述的键盘结构,其中该透明薄膜层的材质为聚对苯二甲酸乙二酯或聚碳酸酯。9 . The keyboard structure of claim 1 , wherein the material of the transparent film layer is polyethylene terephthalate or polycarbonate. 10 .
CN201710910306.4A 2017-09-29 2017-09-29 Keyboard structure Expired - Fee Related CN109585204B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710910306.4A CN109585204B (en) 2017-09-29 2017-09-29 Keyboard structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710910306.4A CN109585204B (en) 2017-09-29 2017-09-29 Keyboard structure

Publications (2)

Publication Number Publication Date
CN109585204A true CN109585204A (en) 2019-04-05
CN109585204B CN109585204B (en) 2020-08-14

Family

ID=65919196

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710910306.4A Expired - Fee Related CN109585204B (en) 2017-09-29 2017-09-29 Keyboard structure

Country Status (1)

Country Link
CN (1) CN109585204B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113053690A (en) * 2021-05-06 2021-06-29 江苏紫米电子技术有限公司 Mounting base, socket and switch
CN113066686A (en) * 2021-05-06 2021-07-02 江苏紫米电子技术有限公司 Switch
CN114649156A (en) * 2020-12-18 2022-06-21 致伸科技股份有限公司 Key structure and its elastic conducting member

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2245802Y (en) * 1995-11-27 1997-01-22 博锐科技股份有限公司 Flex Membrane Keyboard Switches
CN204045458U (en) * 2014-08-01 2014-12-24 东莞市铭冠电子科技有限公司 There is the membrane keyboard of mechanical feel
US20150021151A1 (en) * 2013-07-19 2015-01-22 Primax Electronics Ltd. Luminous keyboard
CN205789607U (en) * 2016-10-07 2016-12-07 东莞市凯华电子有限公司 An ultra-thin mechanical keyboard switch with an audible press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2245802Y (en) * 1995-11-27 1997-01-22 博锐科技股份有限公司 Flex Membrane Keyboard Switches
US20150021151A1 (en) * 2013-07-19 2015-01-22 Primax Electronics Ltd. Luminous keyboard
CN204045458U (en) * 2014-08-01 2014-12-24 东莞市铭冠电子科技有限公司 There is the membrane keyboard of mechanical feel
CN205789607U (en) * 2016-10-07 2016-12-07 东莞市凯华电子有限公司 An ultra-thin mechanical keyboard switch with an audible press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114649156A (en) * 2020-12-18 2022-06-21 致伸科技股份有限公司 Key structure and its elastic conducting member
CN113053690A (en) * 2021-05-06 2021-06-29 江苏紫米电子技术有限公司 Mounting base, socket and switch
CN113066686A (en) * 2021-05-06 2021-07-02 江苏紫米电子技术有限公司 Switch
CN113066686B (en) * 2021-05-06 2023-06-20 江苏紫米电子技术有限公司 Switch

Also Published As

Publication number Publication date
CN109585204B (en) 2020-08-14

Similar Documents

Publication Publication Date Title
JP5221819B2 (en) 2-stage switch
US7952043B2 (en) Keyboard with backlighting functionality
US8604370B2 (en) Luminous keyboard
US10276327B2 (en) Luminous keyboard and luminous keyswitch thereof
US9230753B2 (en) Illuminated touch keyboard
TWI433190B (en) Illuminating keyboard
TWI451290B (en) Illuminating keyboard
TWI636476B (en) Luminous keyboard
KR20060119292A (en) Keypad and Keypad Assembly Using the Keypad
CN102468074A (en) Keyboard
US9384918B2 (en) Illuminated keyboard
US8692144B2 (en) Keyboard
CN109585204A (en) Keyboard structure
TWI408716B (en) Illuminating keyboard
US20100148994A1 (en) Keyboard with Backlighting Functionality
US10153106B1 (en) Keyboard structure
CN206471257U (en) Backlight module with thin film switch function
JP2007194092A (en) Membrane sheet and switching device
TWI601177B (en) Luminous keyboard
TWI578355B (en) Keyswitch and keyboard thereof
US20100006413A1 (en) Illuminated keyboard
US20100018845A1 (en) Light guide plate and illuminated keyboard
KR100689391B1 (en) Key pad assembly
KR100689393B1 (en) Key pad assembly
US20180166234A1 (en) Luminous keyboard

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200814