TW202341205A - Backlight keyswitch and backlight module thereof - Google Patents
Backlight keyswitch and backlight module thereof Download PDFInfo
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- 230000003287 optical effect Effects 0.000 claims abstract description 27
- 239000010409 thin film Substances 0.000 claims description 18
- 239000010408 film Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims 2
- 239000012528 membrane Substances 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/062—Light conductor
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- Input From Keyboards Or The Like (AREA)
- Position Input By Displaying (AREA)
Abstract
Description
本發明關於一種背光按鍵及其背光模組,尤指一種使用反射油墨層將背光光源向上發射之光線至少部分反射回導光板內的背光按鍵及其背光模組。The present invention relates to a backlight button and its backlight module, and in particular, to a backlight button and its backlight module that uses a reflective ink layer to reflect at least part of the light emitted upward by a backlight source back into a light guide plate.
一般而言,背光鍵盤之背光模組包含導光板以及背光光源,背光鍵盤之底板設置於導光板上且對應背光鍵盤之複數個背光按鍵的位置分別形成有破孔區,導光板對應每一破孔區之位置形成有光學微結構,以引導光線穿過破孔區入射至背光按鍵上所對應的字符而產生字符發光效果。Generally speaking, the backlight module of a backlight keyboard includes a light guide plate and a backlight light source. The bottom plate of the backlight keyboard is disposed on the light guide plate and has hole areas corresponding to the plurality of backlight keys of the backlight keyboard. The light guide plate corresponds to each hole. An optical microstructure is formed at the position of the hole area to guide light through the hole area and incident on the corresponding characters on the backlight button to produce a character luminous effect.
目前常見背光光源設計係直接在底板下配置具有分別對應每一按鍵之複數個發光二極體的背光電路板,藉此,發光二極體係可射出光線至鍵帽上相對應之字符而產生字符發光效果。然而,由於發光二極體向上發射之光線會直接入射至背光按鍵,因此往往會產生背光按鍵上之中間字符過亮但側邊字符亮度不足的問題,從而影響背光按鍵的發光均勻性與在使用時的視覺美觀效果。At present, a common backlight source design is to configure a backlight circuit board with a plurality of light-emitting diodes corresponding to each key directly under the bottom plate. Through this, the light-emitting diode system can emit light to the corresponding characters on the keycaps to generate characters. Glow effect. However, since the light emitted upward by the light-emitting diodes will be directly incident on the backlight keys, there will often be a problem that the middle characters on the backlight keys are too bright but the side characters are not bright enough, thus affecting the uniformity of the backlight keys and their use. visual aesthetic effect.
因此,本發明的目的在於提供一種使用反射油墨層將背光光源向上發射之光線至少部分反射回導光板內的背光按鍵及其背光模組,以解決上述問題。Therefore, an object of the present invention is to provide a backlight button and its backlight module that use a reflective ink layer to reflect at least part of the light emitted upward by the backlight source back into the light guide plate, so as to solve the above problems.
根據一實施例,本發明之背光按鍵包含一按鍵主體、一底板、一薄膜電路板,以及一背光模組。該底板設置於該按鍵主體下且連接於該按鍵主體以使該按鍵主體可相對於該底板上下移動,該底板對應該按鍵主體之位置具有至少一破孔區。該薄膜電路板設置於該按鍵主體與該底板之間。該背光模組設置於該底板下,該背光模組包含一導光板、一背光電路板、一遮光片,以及一第一反射油墨層。該導光板對應該按鍵主體之位置具有一容置孔且對應該至少一破孔區之位置形成有一光學微結構。該背光電路板設置於該導光板下且具有一背光光源,該背光光源設置於該容置孔中。該遮光片設置於該底板以及該導光板之間且對應該按鍵主體之位置具有一透光區。該第一反射油墨層形成於該底板、該薄膜電路板以及該遮光片之其中之一且位於該背光光源之上方,用來將該背光光源向上發射之光線至少部分反射回該光學微結構且經由該光學微結構之散射依序穿過該透光區、該至少一破孔區與該薄膜電路板而入射至該按鍵主體。According to an embodiment, the backlight key of the present invention includes a key body, a base plate, a thin film circuit board, and a backlight module. The bottom plate is disposed under the key body and connected to the key body so that the key body can move up and down relative to the bottom plate. The bottom plate has at least one hole area corresponding to the position of the key body. The thin film circuit board is disposed between the key body and the base plate. The backlight module is disposed under the base plate. The backlight module includes a light guide plate, a backlight circuit board, a light shielding sheet, and a first reflective ink layer. The light guide plate has a receiving hole corresponding to the key body and an optical microstructure formed corresponding to the at least one hole area. The backlight circuit board is disposed under the light guide plate and has a backlight source. The backlight source is disposed in the accommodating hole. The light-shielding sheet is disposed between the bottom plate and the light guide plate and has a light-transmitting area corresponding to the position of the key body. The first reflective ink layer is formed on one of the base plate, the thin film circuit board and the light-shielding sheet and is located above the backlight source for at least partially reflecting the light emitted upward by the backlight source back to the optical microstructure. The scattering through the optical microstructure sequentially passes through the light-transmitting area, the at least one hole area and the film circuit board and is incident on the key body.
根據另一實施例,本發明之背光模組適用於一背光按鍵,該背光按鍵具有一按鍵主體、一底板,以及一薄膜電路板,該底板設置於該按鍵主體下且連接於該按鍵主體以使該按鍵主體可相對於該底板上下移動,該底板對應該按鍵主體之位置具有至少一破孔區,該薄膜電路板設置於該按鍵主體與該底板之間,該背光模組包含一導光板、一背光電路板、一遮光片,以及一第一反射油墨層。該導光板對應該按鍵主體之位置具有一容置孔且對應該至少一破孔區之位置形成有一光學微結構。該背光電路板設置於該導光板下且具有一背光光源,該背光光源設置於該容置孔中。該遮光片設置於該底板以及該導光板之間且對應該按鍵主體之位置具有一透光區,該第一反射油墨層形成於該底板、該薄膜電路板以及該遮光片之其中之一且位於該背光光源之上方,用來將該背光光源向上發射之光線至少部分反射回該光學微結構且經由該光學微結構之散射依序穿過該透光區、該至少一破孔區與該薄膜電路板而入射至該按鍵主體。According to another embodiment, the backlight module of the present invention is suitable for a backlight button. The backlight button has a button body, a base plate, and a film circuit board. The base plate is disposed under the button body and connected to the button body. The key body can move up and down relative to the base plate. The base plate has at least one hole area corresponding to the position of the key body. The film circuit board is disposed between the key body and the base plate. The backlight module includes a light guide plate. , a backlight circuit board, a light shielding sheet, and a first reflective ink layer. The light guide plate has a receiving hole corresponding to the key body and an optical microstructure formed corresponding to the at least one hole area. The backlight circuit board is disposed under the light guide plate and has a backlight source. The backlight source is disposed in the accommodating hole. The light-shielding sheet is disposed between the base plate and the light guide plate and has a light-transmitting area corresponding to the key body. The first reflective ink layer is formed on one of the base plate, the thin film circuit board and the light-shielding sheet. Located above the backlight source, it is used to at least partially reflect the light emitted upward by the backlight source back to the optical microstructure and pass through the light-transmitting area, the at least one hole area and the optical microstructure sequentially through the scattering of the optical microstructure. The thin film circuit board is incident on the key body.
綜上所述,本發明係採用將反射油墨層設置在背光光源上方以將背光光源向上發射之光線至少部分反射回導光板(可避免中間字符過亮)且接著經由導光板光學微結構之散射而入射至按鍵主體(可提升側邊字符亮度)之導光設計,以解決先前技術中所提到的發光二極體向上發射之光線會直接入射至背光按鍵導致中間字符過亮但側邊字符亮度不足的問題,從而大幅地提升背光按鍵的發光均勻性與在使用時的視覺美觀效果。To sum up, the present invention uses a reflective ink layer disposed above the backlight source to at least partially reflect the light emitted upward by the backlight source back to the light guide plate (to avoid over-brightness of the middle characters) and then scatter it through the optical microstructure of the light guide plate. The light guide design that is incident on the key body (which can increase the brightness of the side characters) solves the problem mentioned in the previous technology that the light emitted upward by the light-emitting diodes will be directly incident on the backlight button, causing the middle characters to be too bright but the side characters to be too bright. The problem of insufficient brightness is eliminated, thereby greatly improving the uniformity of the backlight keys and the visual aesthetics during use.
關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.
以下內容將搭配圖式,藉由特定的具體實施例說明本發明之技術內容,熟悉此技術之人士可由本說明書所揭示之內容輕易地了解本發明之其他優點與功效。本發明亦可藉由其他不同的具體實施例加以施行或應用。本說明書中的各項細節亦可基於不同觀點與應用,在不背離本發明之精神下,進行各種修飾與變更。尤其是,於圖式中各個元件的比例大小及配置關係(如油墨層比例大小等)僅具示範性用途,並非代表本發明實施的實際狀況。The following content will be combined with drawings to illustrate the technical content of the present invention through specific embodiments. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various modifications and changes may be made to various details in this description based on different viewpoints and applications without departing from the spirit of the present invention. In particular, the proportional size and arrangement relationship of each component in the drawings (such as the proportional size of the ink layer, etc.) are only for exemplary purposes and do not represent the actual implementation of the present invention.
請參閱第1圖,其為根據本發明之一實施例所提出之背光按鍵10之剖面簡示圖,背光按鍵10係可較佳地應用在一般具有由上蓋與下殼體組成之開合電子設備或具有按鍵輸入功能之電子裝置上(如筆記型電腦或鍵盤裝置,但不以此為限)且提供字符發光功能,以便使用者按壓而執行使用者所欲輸入之功能,如第1圖所示,背光按鍵10包含按鍵主體12、底板14、薄膜電路板16,以及背光模組18。底板14係設置於按鍵主體12下以及連接於按鍵主體12以使按鍵主體12可相對於底板14上下移動,底板14對應按鍵主體12之位置具有至少一破孔區15(於第1圖中顯示二個,但不以此為限),且薄膜電路板16係設置於按鍵主體12與底板14之間,至於針對按鍵主體12之元件的相關描述,其係常見於先前技術中,舉例來說,按鍵主體12可包含鍵帽20、升降機構22以及彈性復位件24(但不受此限),薄膜電路板16具有開關,鍵帽20連接於升降機構22,升降機構22可活動地設置在底板14以用來承托鍵帽20上下移動以接近或遠離開關,彈性復位件24受壓時儲存之彈性恢復力可幫助鍵帽20回復到初始位置以便使用者進行後續按壓操作。Please refer to Figure 1, which is a schematic cross-sectional view of a
以下係針對背光模組18之設計進行詳細之描述,背光模組18係設置於底板14下且包含導光板26、背光電路板28、遮光片30,以及第一反射油墨層32。導光板26對應按鍵主體12之位置具有容置孔34且對應破孔區15之位置形成有光學微結構36,背光電路板28係設置於導光板26下且具有背光光源38,背光光源38(較佳地為發光二極體,但不以此為限)係設置於容置孔34中,遮光片30係設置於底板14以及導光板26之間且對應按鍵主體12之位置具有透光區31,第一反射油墨層32係可較佳地為白色油墨層(但不受此限)且形成於遮光片30且位於背光光源38之上方,更詳細地說,在此實施例中,由第1圖可知,第一反射油墨層32係可形成於遮光片30之下表面S1,且在實際應用中,為了防止光線部分穿透第一反射油墨層32而直接向上入射至按鍵主體12以更進一步地改善中間字符過亮的問題,背光模組18可另包含不透光油墨層40,不透光油墨層40係可較佳地為黑色油墨層(但不受此限)且形成於遮光片30之上表面S2以用來阻止穿透第一反射油墨層32之光線直接入射至按鍵主體12。The following is a detailed description of the design of the
透過上述配置,第一反射油墨層32係可將背光光源38向上發射之光線至少部分反射回導光板26中且入射至光學微結構36(如第1圖所示),藉此,位於導光板26內的光線即可經由光學微結構36之散射依序穿過遮光片30之透光區31、底板14之破孔區15與薄膜電路板16而入射至按鍵主體12,從而產生字符發光效果。Through the above configuration, the first
需注意的是,上述反射油墨層與不透光油墨層之配置亦可應用在背光電路板28上,舉例來說,由第1圖可知,背光模組18可另包含第二反射油墨層42以及不透光油墨層44,第二反射油墨層42(較佳地為白色油墨層,但不受此限)形成於背光電路板28上以用來將從導光板26向下射出之光線反射回導光板26,且不透光油墨層44(較佳地為黑色油墨層,但不受此限)形成於背光電路板28下以用來阻止光線穿透背光電路板28,從而進一步地提升背光光源38入射至導光板26的光線使用效率。It should be noted that the above configuration of the reflective ink layer and the opaque ink layer can also be applied to the
綜上所述,本發明係採用將反射油墨層設置在背光光源上方以將背光光源向上發射之光線至少部分反射回導光板(可避免中間字符過亮)且接著經由導光板光學微結構之散射而入射至按鍵主體(可提升側邊字符亮度)之導光設計,以解決先前技術中所提到的發光二極體向上發射之光線會直接入射至背光按鍵導致中間字符過亮但側邊字符亮度不足的問題,從而大幅地提升背光按鍵的發光均勻性與在使用時的視覺美觀效果。To sum up, the present invention uses a reflective ink layer disposed above the backlight source to at least partially reflect the light emitted upward by the backlight source back to the light guide plate (to avoid over-brightness of the middle characters) and then scatter it through the optical microstructure of the light guide plate. The light guide design that is incident on the key body (which can increase the brightness of the side characters) solves the problem mentioned in the previous technology that the light emitted upward by the light-emitting diodes will be directly incident on the backlight button, causing the middle characters to be too bright but the side characters to be too bright. The problem of insufficient brightness is eliminated, thereby greatly improving the uniformity of the backlight keys and the visual aesthetics during use.
值得一提的是,油墨層之堆疊配置係可不限於上述實施例,意即本發明亦可採用其他油墨層堆疊設計,其油墨層尺寸比例關係以及油墨顏色與種類端視背光模組18之實際出光應用而有所變化。舉例來說,如第2圖(a)所示,第一反射油墨層32係可形成於遮光片30之下表面S1,且不透光油墨層40係可形成於第一反射油墨層32與遮光片30之間;如第2圖(b)所示,第一反射油墨層32係可形成於遮光片30之上表面S1,且不透光油墨層40係可疊設形成於第一反射油墨層32上。It is worth mentioning that the stacking configuration of the ink layers is not limited to the above embodiment, which means that the present invention can also adopt other ink layer stacking designs. The size ratio of the ink layers as well as the color and type of the ink depend on the
除此之外,反射油墨層之形成位置亦可不限於上述實施例,舉例來說,請參閱第3圖,其為根據本發明另一實施例所提出之背光按鍵100之剖面簡示圖,在此實施例與上述實施例中所提到之元件具有相同編號者,其代表具有相同或相似之結構與功能,於此不再贅述。如第3圖所示,背光按鍵100包含按鍵主體12、底板14、薄膜電路板16,以及背光模組102,背光模組102係設置於底板14下且包含導光板26、背光電路板28、遮光片30、第二反射油墨層42、不透光油墨層44,以及第一反射油墨層104。在此實施例中,第一反射油墨層104係可較佳地為白色油墨層(但不受此限)且形成於底板14之下表面S3,藉此,由第3圖可知,第一反射油墨層104係可將背光光源38向上發射之光線至少部分反射回導光板26中且入射至光學微結構36,如此一來,位於導光板26內的光線即可經由光學微結構36之散射依序穿過遮光片30之透光區31、底板14之破孔區15與薄膜電路板16而入射至按鍵主體12,從而產生字符發光效果。In addition, the formation position of the reflective ink layer is not limited to the above embodiment. For example, please refer to Figure 3, which is a schematic cross-sectional view of the
另外,請參閱第4圖,其為根據本發明另一實施例所提出之背光按鍵150之剖面簡示圖,在此實施例與上述實施例中所提到之元件具有相同編號者,其代表具有相同或相似之結構與功能,於此不再贅述。如第4圖所示,背光按鍵150包含按鍵主體12、底板14、薄膜電路板16,以及背光模組152,底板14可另具有中間孔區154,背光模組152係設置於底板14下且包含導光板26、背光電路板28、遮光片30、第二反射油墨層42、不透光油墨層44,以及第一反射油墨層156。在此實施例中,第一反射油墨層156係可較佳地為白色油墨層(但不受此限)且形成於薄膜電路板16之下表面S4,藉此,由第4圖可知,第一反射油墨層156係可將背光光源38向上發射且通過中間孔區154之光線至少部分反射回導光板26中且入射至光學微結構36,如此一來,位於導光板26內的光線即可經由光學微結構36之散射依序穿過遮光片30之透光區31、底板14之破孔區15與薄膜電路板16而入射至按鍵主體12,從而產生字符發光效果。In addition, please refer to Figure 4, which is a schematic cross-sectional view of a
在實際應用中,為了避免鍵帽對應反射油墨層之位置出現亮度不足的問題,本發明亦可選擇性地採用補光孔設計,舉例來說,請參閱第5圖,其為根據本發明另一實施例所提出之背光按鍵200之剖面簡示圖,在此實施例與上述實施例中所提到之元件具有相同編號者,其代表具有相同或相似之結構與功能,於此不再贅述。如第5圖所示,背光按鍵200包含按鍵主體12、底板14、薄膜電路板16,以及背光模組202,底板14可另具有中間孔區204,背光模組202係設置於底板14下且包含導光板26、背光電路板28、遮光片30、不透光油墨層40、第二反射油墨層42、不透光油墨層44,以及第一反射油墨層206。在此實施例中,第一反射油墨層206係可較佳地為白色油墨層(但不受此限),第一反射油墨層206係可形成於遮光片30之上表面S2且具有至少一補光孔207,於第5圖中顯示二個補光孔207以分別位於不透光油墨層40之兩側(但不以此為限),藉此,除了可將背光光源38向上發射之光線至少部分反射回導光板26中之外,第一反射油墨層206亦可允許背光光源38向上發射之光線通過補光孔207、中間孔區204與薄膜電路板16而入射至按鍵主體12以產生亮度補償效果,從而進一步地提昇背光按鍵200的發光均勻性。In practical applications, in order to avoid the problem of insufficient brightness at the position of the keycap corresponding to the reflective ink layer, the present invention can also selectively adopt a light filling hole design. For example, please refer to Figure 5, which is another method according to the present invention. A schematic cross-sectional view of the
此外,請參閱第5圖以及第6圖,第6圖為第5圖之鍵帽20、底板14、第一反射油墨層206與不透光油墨層40之配置關係的上視透視圖,由第5圖以及第6圖可知,第一反射油墨層206係可更形成於遮光片30對應底板14除破孔區15以外之區域的位置上,藉以進一步地提升背光光源38入射至導光板26的光線使用效率,其中如第6圖所示之第一反射油墨層206的塗佈配置僅為舉例之用,本發明並不以此為限。
以上所述僅為本發明之較佳實施例,凡依本發明申請專利範圍所做之均等變化與修飾,皆應屬本發明之涵蓋範圍。
In addition, please refer to Figures 5 and 6. Figure 6 is a top perspective view of the arrangement relationship of the
10、100、150、200:背光按鍵
12:按鍵主體
14:底板
15:破孔區
16:薄膜電路板
18、102、152、202:背光模組
20:鍵帽
22:升降機構
24:彈性復位件
26:導光板
28:背光電路板
30:遮光片
31:透光區
32、104、156、206:第一反射油墨層
34:容置孔
36:光學微結構
38:背光光源
40、44:不透光油墨層
42:第二反射油墨層
154、204:中間孔區
207:補光孔
S1、S3、S4:下表面
S2:上表面
10, 100, 150, 200: Backlit buttons
12:Button body
14: Bottom plate
15: hole area
16:Thin
第1圖為根據本發明之一實施例所提出之背光按鍵之剖面簡示圖。 第2圖為根據本發明不同實施例所提出之不同油墨層配置圖。 第3圖為根據本發明另一實施例所提出之背光按鍵之剖面簡示圖。 第4圖為根據本發明另一實施例所提出之背光按鍵之剖面簡示圖。 第5圖為根據本發明另一實施例所提出之背光按鍵之剖面簡示圖。 第6圖為第5圖之鍵帽、底板、第一反射油墨層與不透光油墨層之配置關係的上視透視圖。 Figure 1 is a schematic cross-sectional view of a backlight key according to an embodiment of the present invention. Figure 2 is a diagram showing different ink layer configurations according to different embodiments of the present invention. Figure 3 is a schematic cross-sectional view of a backlight key according to another embodiment of the present invention. Figure 4 is a schematic cross-sectional view of a backlight key according to another embodiment of the present invention. Figure 5 is a schematic cross-sectional view of a backlight key according to another embodiment of the present invention. Figure 6 is a top perspective view of the arrangement relationship between the keycap, the bottom plate, the first reflective ink layer and the opaque ink layer in Figure 5.
10:背光按鍵 10: Backlit buttons
12:按鍵主體 12:Button body
14:底板 14: Bottom plate
15:破孔區 15: hole area
16:薄膜電路板 16:Thin film circuit board
18:背光模組 18:Backlight module
20:鍵帽 20:Keycap
22:升降機構 22:Lifting mechanism
24:彈性復位件 24: Elastic reset piece
26:導光板 26:Light guide plate
28:背光電路板 28:Backlight circuit board
30:遮光片 30:Shading film
31:透光區 31: Translucent area
32:第一反射油墨層 32: First reflective ink layer
34:容置孔 34: Accommodation hole
36:光學微結構 36: Optical microstructure
38:背光光源 38:Backlight source
40、44:不透光油墨層 40, 44: Opaque ink layer
42:第二反射油墨層 42: Second reflective ink layer
S1:下表面 S1: lower surface
S2:上表面 S2: Upper surface
Claims (24)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/128,240 US20230317386A1 (en) | 2022-03-31 | 2023-03-30 | Backlight keyswitch and backlight module thereof |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202263325623P | 2022-03-31 | 2022-03-31 | |
US63/325,623 | 2022-03-31 | ||
CN202210556007.6A CN114999851A (en) | 2022-05-19 | 2022-05-19 | Key backlight structure and luminous key structure |
Publications (1)
Publication Number | Publication Date |
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TW202341205A true TW202341205A (en) | 2023-10-16 |
Family
ID=83026628
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW112109798A TW202341205A (en) | 2022-03-31 | 2023-03-16 | Backlight keyswitch and backlight module thereof |
TW112111307A TW202345185A (en) | 2021-08-25 | 2023-03-25 | Illuminant circuit board, backlight moudule nad lightingkeyboard |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW112111307A TW202345185A (en) | 2021-08-25 | 2023-03-25 | Illuminant circuit board, backlight moudule nad lightingkeyboard |
Country Status (2)
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CN (1) | CN114999851A (en) |
TW (2) | TW202341205A (en) |
-
2022
- 2022-05-19 CN CN202210556007.6A patent/CN114999851A/en active Pending
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2023
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- 2023-03-25 TW TW112111307A patent/TW202345185A/en unknown
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CN114999851A (en) | 2022-09-02 |
TW202345185A (en) | 2023-11-16 |
TW202341207A (en) | 2023-10-16 |
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