TWM627927U - keyboard assembly - Google Patents

Abstract

A keyboard assembly includes a base, a first keycap, a second keycap, a light guide assembly and a first light-emitting element. The first keycap has a first light emitting surface. The second keycap has a second light emitting surface. The light guide component includes a light guide plate, a first filter pattern and a second filter pattern. The light guide plate has a low beam side and a high beam side opposite to each other. The first and second filter patterns are arranged on the light guide plate. The first light-emitting surface and the second light-emitting surface face away from the light guide plate. The light emitted by the first light-emitting element enters the light guide plate from the low-beam side, and is respectively transmitted to the first and second light emitting surfaces through the first filter pattern and the second filter pattern. The first filter pattern is closer to the low beam side than the second filter pattern, and the ratio of the total area of the first filter pattern to the total area of the first light emitting surface is smaller than the ratio of the total area of the second filter pattern to the second light emitting surface. ratio of the total area.

Description

keyboard assembly

The new model relates to a keyboard assembly, in particular to a keyboard assembly including a light guide assembly.

A desktop computer or a notebook computer is usually used with a keyboard to facilitate the user to input commands. In recent years, illuminated keyboards have been widely used in the field of gaming. This light-emitting keyboard emits different colors of light from the keycaps when in use, and can present a variety of visual effects.

Of course, in order to enhance the visual effect of the light emitted from each keycap (eg, make the keycaps emit light uniformly), such an illuminated keyboard usually configures at least one light-emitting element for each keycap. In the case of using such a configuration, since the number of keycaps of the keyboard is large, the light-emitting keyboard needs to include many light-emitting elements, and the light-emitting keyboard has the problem of high manufacturing cost.

The present invention provides a keyboard assembly to reduce the manufacturing cost of the keyboard assembly.

The keyboard assembly disclosed in an embodiment of the present invention includes a base, a first keycap, a second keycap, at least one light guide component, and at least one first light-emitting element. The first keycap is arranged on the base and has a first light-emitting surface. The second keycap is arranged on the base and has a second light emitting surface. The light guide assembly includes a light guide plate, a first filter pattern and a second filter pattern. The light guide plate has a low beam side and a high beam side opposite to each other. The first filter pattern and the second filter pattern are disposed on the light guide plate between the low beam side and the high beam side. The light guide plate is located on one side of the first keycap and the second keycap close to the base. The first light-emitting surface and the second light-emitting surface face away from the light guide plate. The first light-emitting element is arranged on the base. The light emitted by the first light-emitting element is used to enter the light guide plate from the low beam side and transmit toward the first light-emitting surface and the second light-emitting surface through the first filter pattern and the second filter pattern respectively. The first filter pattern is closer to the low beam side than the second filter pattern, and the ratio of the total area of the first filter pattern to the total area of the first light emitting surface is smaller than the ratio of the total area of the second filter pattern to the second light emitting surface. ratio of the total area.

According to the keyboard assembly disclosed in the above-mentioned embodiments, the light emitted by the first light-emitting element is transmitted to the first light-emitting surface of the first keycap and the second light-emitting surface of the second keycap through the light-guiding assembly. Therefore, the light emitted by a single light-emitting element can be sent toward the light-emitting surfaces of the plurality of keycaps through the assistance of the light guide assembly. In this way, it is not necessary to configure a light-emitting element for each keycap, and the number of light-emitting elements included in the keyboard assembly can be reduced, thereby reducing the manufacturing cost of the keyboard assembly.

In addition, the first filter pattern is closer to the low beam side than the second filter pattern, and the ratio of the total area of the first filter pattern to the total area of the first light emitting surface is smaller than the ratio of the total area of the second filter pattern to the second light emitting surface The ratio of the total area of the polygon. That is, the further away from the low beam side, the filter pattern will have a higher density. Therefore, although the light emitted by the light-emitting element has a weaker intensity when reaching the second filter pattern farther away from the near-beam side than the first filter pattern closer to the near-beam side, the second filter pattern has a weaker intensity. The density of the light pattern is higher than the density of the first filter pattern. Therefore, the first light-emitting element can still uniformly emit light toward the first light-emitting surface and the second light-emitting surface through the first filter pattern and the second filter pattern.

The detailed features and advantages of the embodiments of the present invention are described in detail in the following description, and the contents are sufficient to enable any person with ordinary knowledge in the art to understand the technical content of the embodiments of the present invention and implement them accordingly, and according to the disclosure in this specification Any person with ordinary knowledge in the art can easily understand the related objects and advantages of the present invention. The following examples further illustrate the concept of the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to FIG. 1 to FIG. 4 . FIG. 1 is a top view of a keyboard assembly according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the keyboard assembly shown in FIG. 1 along the sectional line AA'. FIG. 3 is a partial enlarged view of a schematic cross-sectional view of the keyboard assembly in FIG. 2 . FIG. 4 is a schematic cross-sectional view of the keyboard assembly in FIG. 1 taken along the sectional line BB'.

In this embodiment, the keyboard assembly 10 includes a base 100, a thin film circuit board 150, a first keycap 200, a second keycap 250, a third keycap 300, two light guide components 350, 450, A plurality of first light emitting elements 500 and a plurality of second light emitting elements 550 . In this embodiment, the keyboard assembly 10 is, for example, disposed in the main body casing of the notebook computer, but not limited thereto. In other embodiments, the keyboard assembly can also be an independent keyboard that can be plugged into a desktop computer.

The thin film circuit board 150 is disposed in the base 100 and is, for example, a transparent thin film circuit board. The first keycap 200 , the second keycap 250 and the third keycap 300 are disposed on the base 100 through the thin film circuit board 150 and separated from each other. The first keycap 200 has a first light emitting surface 201 . The second keycap 250 has a second light emitting surface 251 . The third keycap 300 has a third light emitting surface 301 .

The light guide assembly 350 includes a light guide plate 351 , a first filter pattern 352 , a second filter pattern 353 and a third filter pattern 354 . The light guide plate 351 has a low beam side 3510 and a high beam side 3511 opposite to each other. In addition, in this embodiment, the light guide plate 351 further has a first outer surface 3512 and a second outer surface 3513 opposite to each other. The first outer surface 3512 and the second outer surface 3513 are between the low beam side 3510 and the high beam side 3511 . The first outer surface 3512 is farther from the first keycap 200 , the second keycap 250 and the third keycap 300 than the second outer surface 3513 . The first filter pattern 352 , the second filter pattern 353 and the third filter pattern 354 are disposed on the first outer surface 3512 of the light guide plate 351 between the low beam side 3510 and the high beam side 3511 . The light guide plate 351 is located on one side of the first keycap 200 , the second keycap 250 and the third keycap 300 close to the base 100 . The first light emitting surface 201 , the second light emitting surface 251 and the third light emitting surface 301 face away from the light guide plate 351 .

In other embodiments, the first filter pattern, the second filter pattern and the third filter pattern can also be disposed on the second outer surface of the light guide plate.

Please refer to FIG. 2 and FIG. 5 . FIG. 5 is a partial enlarged view showing a schematic bottom view of the first light-emitting element and one of the light guide components. As shown in FIG. 5 , the first filter pattern 352 is closer to the low beam side 3510 than the second filter pattern 353 . The ratio of the total area of the first filter pattern 352 to the total area of the first light emitting surface 201 is smaller than the ratio of the total area of the second filter pattern 353 to the total area of the second light emitting surface 251 , that is, the first filter The arrangement density of the patterns 352 is smaller than that of the second filter patterns 353 .

It should be noted that, in the present disclosure, if the total area of the first filter pattern 352 is represented by A1 and the total area of the first light emitting surface 201 is represented by A2, the total area of the first filter pattern 352 is larger than that of the first light emitting surface. The ratio of the total area of the surface 201 is expressed as A1/A2, and other similar descriptions are the same and will not be repeated.

As shown in FIG. 5 , the color of the first filter pattern 352 is different from the color of the third filter pattern 354 . The first filter pattern 352 and the third filter pattern 354 are spaced apart from the low beam side 3510 by the same distance. The ratio of the total area of the first filter pattern 352 to the total area of the first light emitting surface 201 is different from the ratio of the total area of the third filter pattern 354 to the total area of the third light emitting surface 301 . For example, the third filter pattern 354 is, for example, red and needs to have a higher density, so that the ratio of the total area of the first filter pattern 352 to the total area of the first light emitting surface 201 is smaller than that of the third filter The ratio of the total area of the pattern 354 to the total area of the third light emitting surface 301 . In this way, light can pass through the first filter pattern 352 and the third filter pattern 354 of different colors more uniformly.

It should be noted that, in other embodiments, the light guide element does not need to include two filter patterns separated from the low-beam side by the same distance but with different colors.

In this embodiment, the light guide element 350 further includes three first embossed structures 355 and three second embossed structures 356 . Since the three first embossed structures 355 respectively correspond to the first filter pattern 352 , the second filter pattern 353 and the third filter pattern 354 in a similar manner, and the three second embossed structures 356 respectively correspond to a similar manner In the first filter pattern 352, the second filter pattern 353 and the third filter pattern 354, only one of the first embossed structures 355 and one of the second embossed structures 356 are illustrated in FIG. 3 corresponding to the first way of filtering pattern 352 . As shown in FIG. 3 , the first embossed structure 355 is located on the first outer surface 3512 of the light guide plate 351 . The second embossed structure 356 is located on the second outer surface 3513 of the light guide plate 351 . The first filter pattern 352 is formed on the first embossed structure 355 . The first embossed structure 355 is optically coupled to the second embossed structure 356 , that is, light energy is transmitted between the first embossed structure 355 and the second embossed structure 356 . It should be noted that although the drawings are not shown, it should be understood that the three first embossed structures 355 are optically coupled to the three second embossed structures 356 , respectively.

In other embodiments, the light guide element does not need to include the second embossed structure 356 . Alternatively, in still other embodiments, the light guide element does not need to include the first embossed structure 355 and the second embossed structure 356 .

The structures of the two light guide assemblies 350 and 450 are similar to each other. The following will describe the differences between the light guide assembly 450 and the light guide assembly 350 . For other similar structures, reference may be made to the detailed description of the light guide assembly 350 . Please refer to FIG. 5 and FIG. 6 . FIG. 6 is a partial enlarged view showing a schematic bottom view of the second light emitting element and another light guide component. As shown in FIG. 2 , FIG. 5 , and FIG. 6 , the difference between the two light guide components 350 and 450 is only in the arrangement position and the arrangement of the filter pattern. Specifically, the ratios of the total area of the first filter pattern 352 of the light guide component 350 and the second filter pattern 453 of the light guide component 450 to the total area of the first light exit surface 201 are different from each other, that is, corresponding to the same first light emitting surface 201 The first filter patterns 352 and the second filter patterns 453 on the light exit surface 201 have different arrangement densities. Also, the second filter pattern 353 of the light guide component 350 and the first filter pattern 452 of the light guide component 450 have different colors. That is, the second filter pattern 353 and the first filter pattern 452 corresponding to the same second light emitting surface 251 have different colors. In addition, as shown in FIG. 2 , the two light guide plates 351 and 451 of the two light guide assemblies 350 and 450 are parallel to and separated from each other, and the light guide plate 351 is closer to the first keycap 200 , the second keycap 250 and the second keycap than the light guide plate 451 . Three key caps 300.

Referring to FIGS. 2 to 4 , the first light-emitting element 500 and the second light-emitting element 550 are, for example, light-emitting diodes emitting white light. The first light-emitting element 500 and the second light-emitting element 550 are respectively disposed on opposite sides of the base 100 and used to transmit light from the two low-light sides 3510 and 4510 of the two light guide plates 351 and 451 to the two light guide plates 351 and 451 respectively. 451. Since the first light emitting element 500 and the second light emitting element 550 transmit light to the two light guide plates 351 and 451 in a similar manner, the following description mainly takes the first light emitting element 500 and the light guide plate 351 as examples. The light emitted by the first light emitting element 500 is used to enter the light guide plate 351 from the low beam side 3510 and pass through the first filter pattern 352 , the second filter pattern 353 and the third filter pattern 354 respectively toward the first light emitting surface 201 , the The second light emitting surface 251 and the third light emitting surface 301 transmit. In addition, the light emitted by the first light-emitting element 500 is transmitted between the first embossed structure 355 and the second embossed structure 356 to increase the refraction effect. It should be noted that after entering the light guide plate 451 , the light emitted from the second light emitting element 550 will be transmitted to the first light emitting surface 201 , the second light emitting surface 251 and the third light emitting surface 301 through the light guide plate 351 . It should be noted that, in this embodiment, the light emitted from the second light emitting element 550 is transmitted toward the first light emitting surface 201 through the second filter pattern 453 and the first filter pattern 352 . In addition, in this embodiment, the light emitted from the second light emitting element 550 is transmitted toward the second light emitting surface 251 through the first filter pattern 452 and the second filter pattern 353 . In this way, the second filter patterns 353 and the first filter patterns 452 with different colors can achieve the effect of color mixing.

In other embodiments, the first light-emitting element and the second light-emitting element can also be disposed on the same side of the base.

In other embodiments, the ratio of the total area of the two filter patterns corresponding to the same first light emitting surface in the two light guide components to the total area of the first light emitting surface may also be the same as each other. In other embodiments, the two filter patterns corresponding to the same second light emitting surface in the two light guide components may also have the same color.

In other embodiments, the keyboard assembly may also include only one first light-emitting element and one second light-emitting element. In still other embodiments, the keyboard assembly may include only one light guide assembly, and in such embodiments, the keyboard assembly may not need to include the second light-emitting element.

In this embodiment, as shown in FIG. 2 , the keyboard assembly 10 further includes a reflective film 600 . The reflective film 600 is disposed on the base 100 and on the side of the light guide plates 351 and 451 of the two light guide assemblies 350 and 450 away from the first keycap 200 , the second keycap 250 and the third keycap 300 . In this way, the light incident on the reflective film 600 will be reflected by the reflective film 600 toward the first light emitting surface 201 , the second light emitting surface 251 and the third light emitting surface 301 . In other embodiments, the keyboard assembly does not need to include the reflective film 600 and can directly reflect the light toward each light-emitting surface through the inner surface of the base.

According to the keyboard assembly disclosed in the above-mentioned embodiments, the light emitted by the first light-emitting element is transmitted to the first light-emitting surface of the first keycap and the second light-emitting surface of the second keycap through the light-guiding assembly. Therefore, the light emitted by a single light-emitting element can be sent toward the light-emitting surfaces of the plurality of keycaps through the assistance of the light guide assembly. In this way, it is not necessary to configure a light-emitting element for each keycap, and the number of light-emitting elements included in the keyboard assembly can be reduced, thereby reducing the manufacturing cost of the keyboard assembly.

In addition, the first filter pattern is closer to the low beam side than the second filter pattern, and the ratio of the total area of the first filter pattern to the total area of the first light emitting surface is smaller than the ratio of the total area of the second filter pattern to the second light emitting surface The ratio of the total area of the polygon. That is, the further away from the low beam side, the filter pattern will have a higher density. Therefore, although the light emitted by the light-emitting element has a weaker intensity when reaching the second filter pattern farther away from the near-beam side than the first filter pattern closer to the near-beam side, the second filter pattern has a weaker intensity. The density of the light pattern is higher than the density of the first filter pattern. Therefore, the first light-emitting element can still uniformly emit light toward the first light-emitting surface and the second light-emitting surface through the first filter pattern and the second filter pattern.

Although the present invention is disclosed by the above-mentioned embodiments, it is not intended to limit the present invention. Anyone who is familiar with similar techniques can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection for a new model shall be determined by the scope of the patent application attached to this specification.

10: Keyboard Components 100: Pedestal 150: Thin film circuit board 200: First keycap 201: The first light-emitting surface 250:Second keycap 251: The second light-emitting surface 300: Third keycap 301: The third light-emitting surface 350, 450: light guide components 351, 451: light guide plate 3510, 4510: low beam side 3511: High beam side 3512: First outer surface 3513: Second outer surface 352, 452: the first filter pattern 353, 453: The second filter pattern 354: The third filter pattern 355: The first embossing structure 356: Second embossing structure 500: The first light-emitting element 550: Second light-emitting element 600: Reflective film

FIG. 1 is a top view of a keyboard assembly according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the keyboard assembly shown in FIG. 1 along the sectional line AA'. FIG. 3 is a partial enlarged view of a schematic cross-sectional view of the keyboard assembly in FIG. 2 . FIG. 4 is a schematic cross-sectional view of the keyboard assembly in FIG. 1 taken along the sectional line BB'. FIG. 5 is a partial enlarged view showing a schematic bottom view of the first light-emitting element and one of the light guide components. FIG. 6 is a partial enlarged view showing a schematic bottom view of the second light emitting element and another light guide component.

350: Light guide components

351: light guide plate

3510: low beam side

3512: First outer surface

352: The first filter pattern

353: The second filter pattern

354: The third filter pattern

500: The first light-emitting element

Claims (10)

A keyboard assembly, comprising: a base; a first keycap disposed on the base and having a first light-emitting surface; a second keycap disposed on the base and having a second light-emitting surface; at least one The light guide assembly includes a light guide plate, a first filter pattern and a second filter pattern, the light guide plate has a low beam side and a high beam side opposite to each other, the first filter pattern and the second filter pattern The filter pattern is arranged on the light guide plate between the low beam side and the far beam side, the light guide plate is located on the side of the first keycap and the second keycap close to the base, the first light emitting and the second light-emitting surface facing away from the light guide plate; and at least one first light-emitting element disposed on the base, the light emitted by the at least one first light-emitting element is used to enter the light guide plate from the low beam side and respectively The first filter pattern and the second filter pattern are sent toward the first light emitting surface and the second light emitting surface; wherein the first filter pattern is closer to the low-beam side than the second filter pattern, and the The ratio of the total area of the first filter pattern to the total area of the first light emitting surface is smaller than the ratio of the total area of the second filter pattern to the total area of the second light emitting surface. The keyboard assembly of claim 1, further comprising a third keycap, the third keycap is disposed on the base and has a third light emitting surface, the third light emitting surface faces away from the light guide plate, the at least one The light guide assembly further includes a third filter pattern, the third filter pattern is disposed on the light guide plate, the color of the first filter pattern is different from the color of the third filter pattern, the first filter pattern and The third filter pattern is separated from the low-beam side by the same distance, and the ratio of the total area of the first filter pattern to the total area of the first light emitting surface is different from the ratio of the total area of the third filter pattern to the The ratio of the total area of the third light-emitting surface. The keyboard assembly of claim 1, wherein the light guide plate has a first outer surface and a second outer surface, the first outer surface and the second outer surface are opposite to each other, and the first outer surface is larger than the second outer surface The outer surface is away from the first keycap and the second keycap, and the first filter pattern and the second filter pattern are disposed on the first outer surface of the light guide plate. The keyboard assembly as claimed in claim 1, further comprising at least one second light-emitting element, the number of the at least one light-guiding assembly is two, the two light-guiding plates of the two light-guiding assemblies are parallel to each other and are separated from each other, the at least one light-guiding element is The second light-emitting element is disposed on the base, and the at least one first light-emitting element and the at least one second light-emitting element are respectively used for sending light into the two light guide plates from the two low beam sides of the two light guide plates. The keyboard assembly of claim 4, wherein the at least one first light-emitting element and the at least one second light-emitting element are respectively disposed on opposite sides of the base, and the light emitted by the at least one second light-emitting element passes through one of them. The second filter pattern of the light guide component and the first filter pattern of the other light guide component are sent toward the first light emitting surface, and the light emitted by the at least one second light-emitting element passes through one of the light guides The first filter pattern of the component and the second filter pattern of the other light guide component are sent toward the second light emitting surface. The keyboard assembly of claim 4, wherein the total area of the first filter pattern of one of the light guide components and the total area of the second filter pattern of the other light guide component are larger than the first light emitting surface The ratios of the total areas are different from each other. The keyboard assembly of claim 6, wherein the second filter pattern of one of the light guide elements and the first filter pattern of the other light guide element have different colors. The keyboard assembly of claim 3, wherein the light guide assembly further comprises two first embossed structures, the two first embossed structures are located on the first outer surface of the light guide plate, the first filter pattern and the The second filter patterns are respectively formed on the two first embossed structures. The keyboard assembly of claim 8, wherein the light guide assembly further comprises two second embossed structures, the two second embossed structures are located on the second outer surface of the light guide plate, and the two first embossed structures are respectively optically coupled to the two second embossed structures. The keyboard assembly of claim 1, further comprising a reflective film disposed on the base and located on a side of the light guide plate of the light guide assembly away from the first keycap and the second keycap.

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