TWI282931B - Light-emitting device and light-emitting keyboard using the same - Google Patents

Abstract

A light-emitting keyboard includes a plurality of keys, a light guide component and a light source. The light guide component is disposed under key. A plurality of optical fibers guide a light of the light source to the light guide component, and the light is guided to transmit to respective key via the light guide component.

Description

1282931 V. INSTRUCTIONS (1) " *--'-, I. Technical Field of the Invention · The present invention relates to an illuminated keyboard, and more particularly to an illuminated keyboard, which provides uniform brightness and makes the keyboard thinner and lighter. . Second, the prior art _ pen S-type computer is widely used, its function is also changing. It is possible to use it in a low-light environment, and a keyboard that can be self-illuminated and illuminated is proposed. - With the advancement of technology, various kinds of light-emitting elements are used in display, decoration, lighting, etc. In addition to how to improve the luminous efficiency of light-emitting elements, how to make the brightness uniform and make the keyboard thinner and lighter, The goal. "Knife" "The keyboard of the conventional keyboard is usually placed on the bottom plate under the keycaps ^ 'The light source directly illuminates the key cap from the bottom up. Or some keyboards use the light source plus the light guiding element to set the light source in the light guide In the vicinity of the component, the light guide member guides the light to each of the keycaps without setting a light source under each of the keycaps. As shown in FIG. 1A, a conventional illuminated keyboard, such an illuminated keyboard 10 includes a key. a cap 12, a scissor structure 13, an elastic member 14, an elastic film 14a, a film circuit board 15, a spacer layer 16, a light guide member 17, and a plurality of light sources 丨9, a light source 丨9 It is disposed near the light guide member 17. In the actual keyboard, the elastic film 14&, the film circuit f, the spacer layer 16, and the light guiding member 17 should be a whole layer, and this figure only has no light guide τ 1 7 is larger, other components only show the -^ under the keycap 丨2 to highlight the conventional light guiding element 丨7. The second 图B diagram shows the light path of the light, and the light element 17 has a reflective pattern 18 below it, when the light source 19 Launching light into the guide

1282931 V. DESCRIPTION OF THE INVENTION (2) After the optical element 17, a part of the light is refracted to the reflective pattern 18 and reflected to the keycap 12, so that in general, the current electronic products are becoming more and more light and thin, and the trend is toward such electronic In the product, it is urgent to achieve the thinning of the light guiding element as much as possible to achieve a certain thickness. When the light source is disposed at a portion of the thin light source, the light is gradually lost and fully utilized, so that the light guiding element of the conventional light is sufficient, but This will increase the keyboard to use more light sources to have sufficient brightness for the light guiding elements, however, the smaller the energy consumption of the light notebook computer, the smaller the brightness of the illuminated keyboard will be uneven. In view of this, the present invention is directed to improving a plurality of light sources. SUMMARY OF THE INVENTION The present invention provides an illuminated keyboard and a portion that utilizes a thinner thickness, reduces energy, and is more capable of emitting light. The key cap 12 line is even as a note ‘therefore, these light guides are required to make the thickness constant. Nearby, the source needs to be as good as possible. The other part is illuminated by the keyboard when the light-emitting key is thin. However, the light source of one of the light elements must be thick enough to be used again, and the energy of the light source can be made more. In the light element and the light guiding purpose, in order to solve the illuminated keyboard, the brightness is more uniform, and the minute is passed through the cap 1 2 on. The keyboard has been used for 10 applications, and the source can usually be used at the end of the time. The offline keyboard cannot be fully transmitted. The keyboard needs to be large, especially in the vicinity of different regional components. The above problem is not only the key but only the content of the invention. Illuminating the part to emit light, another part of the invention

The purpose of the device is to make the brightness more uniform, only to reduce the number of light sources.

1282931 V. INSTRUCTION DESCRIPTION (3) The low 0 is set in the word, and in a preferred embodiment, is located on each word, so that in the light embodiment, the key is directly underneath each key through the reflective system. The row pattern is a prism. In the embodiment, the word key is connected to each guide system. The purpose of the light-emitting keyboard of the light-emitting device is to make the key thin. The present invention provides a light-emitting device 'includes a light source and a plurality of light sources to respective word keys. A profitable digital key, an optical fiber is provided. The light source is disposed adjacent to the light guide light to be guided to the light guiding element, and then the light guiding element is guided by the light guiding element, and the light guiding key is reversely reflected in each shape by the light guiding pattern of each light guiding element . The light-emitting direct light element is listed in each of the present invention, and the thickness of the disk is further increased to achieve the upper light-guiding element. The plurality of optical fiber elements guide the injection. The optical keyboard of the present invention comprises a multi-fiber. The light guiding element is guided to the light guiding element, and the plurality of bumps are guided to the respective bumps. In a preferred embodiment, the optical fiber is not placed in each groove, and each word pattern is made, so that the light reflection patterns are again reflected on the other An emitting keyboard that is opposite to each of the light guiding elements and each of the optical fiber reflective light devices, the hair piece, a light source, and a plurality of lights. A plurality of optical fibers direct the light from the source to each word key. When the element is in the shape of a plate, under the light guiding element, the light bumps are irradiated to the respective word keys by the respective optical fibers. The piece further includes a plurality of grooves, each of which is engraved with a plurality of reflective lights to the respective word keys. The bottom of the light guiding element. The keyboard includes a plurality of light guiding elements, and each of the light guiding elements is separated from the bottom of the optical element

1282931 V. INSTRUCTIONS (4) The 'reflective pattern' is a prism shape. The above and other objects, features and advantages of the present invention will become more <RTIgt; 4. Embodiments The various aspects of the present invention will be described in detail below with reference to specific embodiments. [First Embodiment] Referring to FIG. 2A, a light-emitting keyboard 20 according to a first embodiment of the present invention will be described in detail. In the actual keyboard, other components such as an upper case and a bottom case are also provided, in order to simplify the drawing. , not drawn here. The illuminated keyboard 2 has a keycap 22, a scissor structure 23, an elastic member 24, an elastic film 24a, a film circuit board 25, a spacer layer 26, and a light-emitting device 1 from top to bottom. The illumination device 100 includes a light guiding element 27'-a light source 29 and a fiber bundle 30'. The fiber bundle 30 includes a plurality of optical fibers 3.1. In addition to being applied to the illuminated keyboard 20, the light-emitting device 100 of the present invention can be applied to display, decoration, lighting, advertising, and the like of the electronic device. In this embodiment, the light source 29 is a light emitting diode (LED). One end of each of the optical fibers 301 is connected to the light guiding element 27 in an embedded manner, and the other end of the optical fiber 301 is aggregated into a bundle of optical fibers 30 and attached to the light source 29. As shown in Fig. 2B, the light guiding element 27 is a thin layer of plate, and the conductive number of the rabbit is reduced to 28'. The fiber 301 is tilted into the earth element 27'. The light is poor in the light guiding element η. Ironing: true touch segment reflective pattern 28 or mirror when i; make light-line through the emperor 1 light s

1282931 V. Description of invention (5) Emperor mijt I. Each of the reflective patterns 28 is only engraved in a position where it is required to emit light. For example, one---.. is printed under the keycap, and the reflective pattern 28 can be coated with a reflective material by one-to-one ---------- -------------------------------------------------- ------1一一'-....................................... .......................-,. Build on one side of the iso-optical element 27, or reflect it in the form of printing m ^ ^ ^ 7t ^ 2 7 _^ On one side, it should be noted that the arrangement pattern 3 of the retroreflective pattern 28 close to the optical fiber 3〇1 is: the agriculture is thin-sparse, and the arrangement of the reflective pattern 28 of the rain on the optical fiber 3 〇1 can be arranged. More than this, this densely arranged branch makes the distribution of light more uniform. One

The present invention utilizes a plurality of optical fibers 310 to concentrate and direct light to a position where light is required to be emitted, thereby not causing loss of light entering the light guiding member 27. The light of the color light source 29 can be fully utilized, and thus the present invention does not Too much light source 29 is needed to illuminate the entire keyboard, which not only saves power, but also reduces the space occupied by the light source 29, and can use a thinner light guiding element to convey a large amount of light', thus making the keyboard thinner and lighter and shorter. . [Second Embodiment] Fig. 3A shows the present invention. ί &lt; shows a n. This does not show the upper case of the keyboard 20, and the bottom embodiment differs from the first embodiment in the block 271' each of the bumps. The 271 series is directed toward each of the 301 to collectively direct the light to each of the bumps 271.卩竺i has been added to the light-guide element - , · . ^ *4 n cap 2 2 'brakes 271 more - '- this can provide a higher brightness. The following is a detailed description of the second embodiment 〇 see the third and the 3 map. As shown in the figure, in order to simplify the illustration, the shell, the keycap and other components, the light guiding element 27 includes a plurality of key caps 22, by means of the respective light, so that the embodiment only needs to make the light The brightness of the light and the uniform illuminated keyboard 20 can be increased via the preparation block. The light guiding mode of the bump 271 is driven by the light source of the present invention.

1282931 V. Description of the invention (6) placed in the vicinity of the light guiding element 27, first guiding the light to the bump 271 under each of the keycaps 22 via the plurality of optical fibers 301, and the bumps 271 directly under the respective keycaps are respectively The reflective pattern 28 arranged in a sparse manner is engraved with a plurality of patterns on the bottom of the light guiding member 27. In this embodiment, the pattern is a 稜鏡 shape, and the light is reflected to the respective key caps 22 via the pattern having the 稜鏡 shape, and then Referring to the figure, the light is guided to the bump 271 via the optical fiber 3〇1, a portion of the light is directly refracted upward from the bump 271 to the key cap, and the other portion of the light is reflected upward through the meandering pattern to the key cap. [Third Embodiment] Fig. 4A shows a third embodiment of the present invention. Similarly, in order to simplify the drawing, the upper case, the bottom case, the key cap and the like of the keyboard 20 are not shown here. This embodiment differs from the second embodiment in that the light guiding element 27 is formed with a plurality of grooves 32, and each of the optical fibers 3〇1 is disposed in each of the grooves 32, so that the optical fiber 301 is buried. The light element 27 can make the light guiding element thinner. Similarly, each optical fiber 301 concentrates the light to be illuminated: 2: the thickness is increased to become a bump 271 at this portion, so that the light passes through the convex θ. Each of the J-keys 3: I2, and each of the bumps 271 can enhance the brightness of the light to provide a higher-brightness illuminated keyboard 20. The second "e-type bump 271" The same as the second embodiment. As shown in Fig. 48, the light source 29 is disposed on the bump 27 of the light guiding element 2, and the positive key of each key cap is 2: 2 - 71 keys, = the case below 28' is sparse The arrangement is imprinted on the light guiding element: the inverse ^ can be a prism shape, so that the light passes through the shape with a 稜鏡 = anti =

1282931 V. INSTRUCTIONS (7) Each key cap 2 2 . [Fourth Embodiment] The illuminated keyboard of the fourth embodiment includes a plurality of light guiding elements, which are shown in Fig. 5. The embodiment of the fourth embodiment is not an entire layer of light guiding elements added to the bottom of the entire keyboard. Rather, it is provided directly below each word - 4 or at a position where illumination is required. In other words, each light guiding element 31 is separately disposed, the light has a plurality of light guiding elements 31, and each optical fiber 301 The bump 271 of the shape of the light guiding element 3! of this embodiment is provided. Since it is not necessary to align the light guiding element throughout the keyboard, this embodiment can further reduce the thickness of the [Conclusion] 70, thereby making the thickness of the entire keyboard thinner. In the thickness: and the light source is only configured, the lead When the vicinity of the element is in the vicinity, the light entering the light guiding element is lost, so that the light of the light source cannot be completely profitable, and the present invention solves the above problem, and the present invention is light enough to be uniform, but: The optical fiber is connected to more than 4m light source to illuminate the whole (4), which can reduce the need for the empty space occupied by the two precursors. The thickness of the keyboard is thinned and the two are more 2: Therefore, the invention reduces the number of light-emitting components, and the children&amp; Uniform, because the light guiding element is as thin as possible... and the second sentence of the keyboard, although the invention has been disclosed in several preferred embodiments as above, it is not 〇798.I〇l〇3W(Nl); a) 3〇2g ; yuchia.ptd Page 11 1282931 V. INSTRUCTIONS (8) To limit the present invention, any person skilled in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of protection of the invention The patentable scope of whichever defined. Billion

0798- 10103TW( N1) ; C03028; yuch i a. ptd Page 12 1282931 Brief Description of the Drawings Figure 1A shows a schematic diagram of a conventional illuminated keyboard; Figure 1B shows the optical path of a conventional illuminated keyboard; FIG. 2B is a cross-sectional view showing a light guiding device according to a first embodiment of the present invention; FIG. 3A is a schematic view showing a light guiding device according to a second embodiment of the present invention; 3B is a partial enlarged view showing a light guiding element of the illuminated keyboard of the second embodiment of the present invention; FIG. 4A is a schematic view showing a light guiding element of a third embodiment of the present invention; and FIG. 4B is a third embodiment of the present invention; A partial enlarged view of the light guiding light of the illuminated keyboard; FIG. 5 is a schematic view showing the light guiding element of the fourth embodiment of the present invention. [Description of symbols] 1 0 illuminated keyboard 12 key cap 1 3 scissor structure 14 elastic element 14a elastic film 1 5 thin film circuit board 1 6 spacer layer 1 7 light guiding element 18 reflective pattern 1 9 light source

0798-1010JIW(Nl);C03028;yucha.ptd Page 131282931 Brief description of the diagram 20 illuminated keyboard ~ 22 key cap 23 Scissor structure 24 elastic element 24a elastic film 25 film circuit board 26 spacer layer 27, 27' light guide Components - 28, 28' reflective pattern 29, 29' light source ψ 30, 30' fiber bundle 32' trench 1 0 0 illuminating device 271, 271' bump 301, 301 'plural fiber

0798-10103TW(N1) ;C03028; yuchia. ptd Page 14

Claims (1)

1282931 Case No. 9211, Shenyi Patent Range Block Correction f I - Illuminated keyboard, comprising: a complex number key; - a light guiding element, disposed under the kiosk key, located under the word key, the light source; and a plurality of optical fibers , the light of the light source? The light guide element is guided to the light guiding element, and then the element is guided to emit $々, wherein the pig is irradiated by each of the optical fibers from each of the optical fibers to each of the characters including a plurality of convex cores - 2 · For example, claim 1 The illuminated keyboard, wherein the guiding element is plate-shaped. The illuminating keyboard of claim 1, wherein the light guiding element further comprises a plurality of grooves, each / fiber being disposed in each of the grooves. The illuminating keyboard of claim 2, wherein the light guiding elements directly under each of the keys are respectively engraved with a plurality of reflective patterns, so that the light is reversed through the respective reflective patterns. 5. The illuminated keyboard light pattern of the third aspect of the patent is disposed at the bottom of the light guiding element. 6. The illuminated keyboard of claim 3 is in the shape of a 。. , only, 7. As in the "Scope of the patent, the third volume of the luminous key-like anti-element pattern: densely arranged in each light guiding element. - 8 · If the patent scope is close to the optical keyboard, the illuminating keyboard and the sparse arrangement are described. Each of them is reversed, such as 0798-10103TWFl(Nl);C03028;CINDY.ptc llfir No super S. I 2月曰13⁄4 原萌书苐15 1282931 Amendment No. 921248α VI. Patent application scope 9, if the patent application scope is 6th, the light is emitted from the fiber These reflective patterns are closely employed and arranged.遂1 0 · If you apply for a patent, you can use the illuminating keyboard as described in item 1 of _, _, ^, which includes a plurality of guides from T people ^^^ nine pieces, each light guiding element corresponding Directly below each word key, each light-guiding element is embedded in the light-emitting element, and each optical fiber is coupled to each light-guiding element. The illuminated keyboard of claim 1, wherein the plurality of reflective patterns are engraved on the bottom of each of the light guiding elements. The illuminating keyboard of claim 11, wherein the illuminating pattern is a 稜鏡 shape. The illuminated keyboard of claim 1, wherein the reflective patterns are densely arranged at the bottom of each of the light guiding elements. The illuminated keyboard of claim 13, wherein the reflective patterns adjacent to the optical fiber are sparsely arranged. The illuminated keyboard of claim 13, wherein the reflective patterns away from the optical fiber are densely arranged. 16. A light emitting device comprising: a conductor element 'comprising a plurality of bumps; a light source disposed adjacent to the light guiding element; and a plurality of optical fibers directing light from the light source to the light guiding element, and then guiding The light element directs the emission, wherein the light of the light source is guided to the respective bumps by the respective fibers to cause the light to be irradiated upward through the respective bumps. The light-emitting device of claim 16, wherein the light-guiding element further comprises a plurality of grooves, each fiber being disposed in each groove 0798-10103TWFl(Nl);C03028;CINDY.ptc Page 16 1282931 Case No. 92124854 Year Amendment VI. Within the scope of application for patents. The light-emitting device of the light-emitting device of claim 16 is characterized in that the light-guiding member is imprinted with a plurality of reflective patterns for reflecting the light guiding light to the outside of the light guiding member. The illumination device of claim 18 is disposed at the bottom of the light guiding element. The light-reflecting pattern such as the light-emitting device described in claim 19 is in the shape of a crucible. 2 1. A light-emitting device such as the light-emitting device described in claim 18 is densely arranged at the bottom of each light guiding element. 2 2. The light-emitting device of claim 2, wherein the reflective patterns adjacent to the optical fiber are sparsely arranged. 2 3. The light-emitting device of claim 21, wherein the light-reflecting patterns away from the optical fiber are densely arranged. 24. The light-emitting device of claim 16 wherein the plurality of light-emitting devices are plural, and each of the light-guiding elements is separated from each other, and each of the light-guiding elements. 2 5. The light-emitting device of claim 24, wherein the bottom of each light-guiding element is imprinted with a plurality of reflective patterns. The light-emitting device of claim 25, wherein the reflective pattern is in the shape of a crucible. 2 7. A reflective pattern such as a light-emitting device according to item 24 of the patent application is densely arranged at the bottom of each light guiding element. The illuminating device of claim 27, wherein the component is included in the component, wherein, wherein, wherein, wherein, wherein the fiber is coupled to 1 Among them 0798-10103TWFl(Nl);C03028;CMY.ptc Page 17 1282931 Case No. 92124854 0798-10103TWFl(Nl);C03028;CINDY.ptc Page 18