TWI743913B - Illuminated keyboard - Google Patents

Abstract

An illuminated keyboard includes a substrate, a plurality of keys and a light guide plate. The substrate includes a plurality of assembly areas, and each assembly area has a light-transmitting portion. The keys arranged above the multiple assembly areas of the substrate. The light guide plate is disposed under the substrate. The light guide plate includes a light emitting area corresponding to one of the plurality of assembly areas. A carved line pattern is provided in the light emitting area, the carved line pattern includes multiple carved line groups and a grid area, the multiple carved line groups intersect each other to form the grid area, and the grid area corresponds to the light-transmitting portion.

Description

Illuminated keyboard

The present invention relates to a keyboard, in particular to a luminous keyboard.

The keyboard is a very common input device at present, and is usually used with an electronic device, such as a desktop computer, a notebook computer, a smart phone or a tablet computer, and so on. In addition, in order to cope with the use environment with insufficient light, a light-emitting keyboard with light-emitting function was developed.

The illuminated keyboards on the market mainly use a backlight module as a light source. The backlight module guides light through its light guide plate and emits light upward from the bottom of each button. In addition, in order to improve the luminous efficiency, light guide microstructures are often arranged on the light guide plate, for example, patterns are carved on the surface of the light guide plate to increase the amount of light extraction.

However, during the processing of the currently known engraving patterns, the processing equipment needs to be frequently accelerated and decelerated, resulting in increased working hours and reduced productivity and benefits. In addition, it cannot effectively extract light from different angles.

In view of the above, in one embodiment, a light-emitting keyboard is provided, which includes a substrate, a plurality of keys, and a light guide plate. The substrate includes a plurality of assembly areas, and each assembly area has a light-transmitting part. The plurality of keys are arranged above the plurality of assembly areas of the substrate. The light guide plate is disposed under the substrate. The light guide plate includes a first surface and a second surface opposite to each other. The first surface includes a light-emitting area corresponding to one of the multiple assembly areas. The light-emitting area is provided with a reticle pattern. The pattern includes a plurality of engraved line groups and lattice-shaped areas, the plurality of engraved line groups intersect each other to form a lattice-shaped area, and the lattice-shaped area corresponds to the light-transmitting part.

In summary, according to the light-emitting keyboard of the embodiment of the present invention, the engraved line pattern in the light-emitting area corresponding to each key through the light guide plate is a grid pattern. The line groups intersect each other to form a grid-shaped area, and the grid-shaped area corresponds to the light-transmitting part, so that the engraved line pattern can effectively extract light from different angles, which is beneficial to the configuration of the light source and improves the luminous efficiency, and greatly reduces the processing time of the processing equipment And increase production capacity.

Various embodiments are presented below for detailed description. However, the embodiments are only used as examples for description, and do not limit the scope of the present invention to be protected. In addition, some elements are omitted from the drawings in the embodiments to clearly show the technical features of the present invention. The same reference numerals will be used to indicate the same or similar elements in all the drawings.

Fig. 1 is an exploded perspective view of the first embodiment of the illuminated keyboard of the present invention. As shown in Figure 1, the light-emitting keyboard 1 of this embodiment includes a substrate 10, a plurality of keys 20, and a light guide plate 30. In Figure 1, only a part of the light-emitting keyboard 1 is shown in order to clearly see the various components (ie, the above-mentioned substrate 10, keys). The specific structure of 20 and the light guide plate 30) shall be described first. The multiple buttons 20 are arranged above the substrate 10 and the light guide plate 30 is arranged below the substrate 10, that is, the light guide plate 30 is arranged on the side of the substrate 10 away from the buttons 20.

As shown in FIG. 1, the substrate 10 can be a rigid plate made of metal (such as aluminum, steel, alloy, etc.) or plastic material, and has the function of supporting components. In this embodiment, the substrate 10 includes a plurality of assembly areas 11, and each assembly area 11 is a partial plate of the substrate 10 and is provided for the corresponding assembly of each button 20 (for example, in FIG. ). In this embodiment, a connecting piece 22 is assembled between each assembly area 11 and each button 20, wherein the connecting piece 22 can be a scissor-type connecting piece (as shown in FIG. 1), a butterfly-type connecting piece, or a mechanical switch. Etc., one end of the connector 22 is connected to the button 20, and the other end is connected to the substrate 10, thereby assembling the button 20 on the substrate 10 and guiding the button 20 to move up and down relative to the substrate 10. In some embodiments, the illuminated keyboard 1 may include a thin film circuit board (not shown) disposed between the substrate 10 and the keys 20, and a resetting member (such as rubber) disposed between the thin film circuit board and the keys 20. Dome, metal dome, magnetic reset piece, etc.) (not shown).

As shown in FIG. 1, each assembly area 11 of the substrate 10 further has a light-transmitting portion 12. In this embodiment, the light-transmitting portion 12 includes a plurality of light-transmitting holes 121 (herein The number of light-transmitting holes 121 is five, but this is not limited).

As shown in FIG. 1, the light guide plate 30 can be made of a light guide material to guide light. For example, the light guide plate 30 can be made of polycarbonate (PC), acrylic (Polymethyl Methacrylate, PMMA) or glass. Board body made of material. When the external light enters the light guide plate 30, the light guide plate 30 can be made to light up as a whole to generate light and penetrate upward from the plurality of light transmission holes 121 of the substrate 10 to illuminate each button 20 correspondingly, and can be used in response to insufficient light. environment. For example, as shown in FIG. 1, one side of the light guide plate 30 may be provided with a light source 40 (such as an LED light source, a fluorescent light source or an infrared light source, etc.) to emit light into the light guide plate 30, but this is not limited. The number of light sources 40 described above And the setting position depends on the product demand. For example, the light source 40 can also be embedded in the light guide plate 30 (for example, embedded in the center of the light guide plate 30 or other parts). In addition, the number of light sources 40 can also be more than two (light sources 40A, 40B as shown in FIG. 2), and multiple light sources 40 can be respectively arranged at different positions on the light guide plate 30 or multiple light sources 40 can also be arranged side by side. .

As shown in FIG. 1, the light guide plate 30 is stacked on the surface of the substrate 10, and the light guide plate 30 includes a first surface 31 and a second surface 36 opposite to each other. In this embodiment, the first surface 31 faces the substrate 10 and is opposite to The second surface 36 is adjacent to the keys 20, but it is not limited. The light guide plate 30 can also be arranged such that the second surface 36 faces the substrate 10, and the second surface 36 is adjacent to the keys 20 relative to the first surface 31. Limitations.

As shown in Figs. 1 and 2, Fig. 2 is a partial top view of the first embodiment of the illuminated keyboard of the present invention. In this embodiment, the first surface 31 of the light guide plate 30 includes a plurality of light-emitting areas 32 to respectively correspond to the plurality of assembly areas 11 and the plurality of keys 20 of the substrate 10, wherein each light-emitting area 32 is a part of the first surface 31 The surface area (for example, in FIG. 1, a plurality of light-emitting areas 32 are marked with a dotted frame area).

As shown in FIGS. 1 and 2, each light-emitting area 32 of the first surface 31 of the light guide plate 30 can be provided with a scribe pattern 33. Taking one of the light-emitting areas 32 as an example, the engraved line pattern 33 in the light-emitting area 32 is a grid pattern composed of multiple engraved lines with a certain depth. The manufacturing process of the engraved line pattern 33 of the light guide plate 30 can be, but not It is limited to the following methods. For example, a laser processing machine or a mechanical processing machine can be used to preprocess the scribed pattern 33 on the manufacturing mold of the light guide plate 30, and then the scribed pattern 33 can be formed by hot pressing or UV transfer. Transfer to the light guide plate 30. Alternatively, a laser processing machine or a mechanical processing machine can also be used to directly process the first surface 31 of the light guide plate 30 to form the aforementioned scribe pattern 33, which is not limited.

In some embodiments, the second surface 36 of the light guide plate 30 may also include a plurality of partial regions respectively corresponding to the plurality of light-emitting regions 32, and each partial region may also be provided with the aforementioned scribe pattern 33.

The engraved pattern 33 in the light-emitting area 32 is used to extract light energy. For example, as shown in FIG. When transferred to the engraved line pattern 33 on the light-emitting area 32, the engraved line pattern 33 will change the traveling direction of the light so that the light is concentrated on the keys 20, achieving the purpose of light energy extraction and improving the luminous efficiency.

In some embodiments, the score line pattern 33 may include a plurality of score line groups 34 and at least one grid-shaped area 35. As shown in FIGS. 1 and 2, in this embodiment, the scribe line pattern 33 includes a plurality of scribe line groups 34 and a plurality of grid-shaped regions 35, and the plurality of scribe line groups 34 intersect each other to form the above-mentioned multiple grid-shaped regions. 35, and a plurality of grid-shaped regions 35 correspond to the light-transmitting portion 12 of the button 20. In this way, each grid area 35 can be surrounded by a plurality of engraved lines extending in different directions, so light from different angles can be extracted to facilitate the configuration of the light source 40 and improve the luminous efficiency, and a plurality of engraved line groups 34 is to form a grid-shaped area 35 through the way that multiple scribe lines intersect each other, so that the processing equipment does not need to accelerate and decelerate frequently during the processing of the scribed pattern 33, thereby greatly reducing the processing time and increasing the productivity. The engraved line group 34 of 33 can have the following multiple implementations, which are described in conjunction with the drawings as follows.

As shown in FIG. 2, in this embodiment, each light-transmitting hole 121 corresponding to the light-transmitting portion 12 of the substrate 10 is provided with a plurality of scribe-line groups 34 and a plurality of grid-like regions 35 in the scribed line pattern 33. A plurality of scribe line groups 34 corresponding to one light-transmitting hole 121 is taken as an example. The plurality of scribe line groups 34 includes a first scribe line group 341 and a second scribe line group 342 that intersect each other, wherein the first scribe line group 341 includes multiple There are two first scribe lines 3411, and each first scribe line 3411 is a straight line and extends in the first direction. The second scribe line group 342 includes a plurality of second scribe lines 3421, and each second scribe line 3421 is a straight line and faces the first It extends in two directions, and the first direction is different from the second direction, so that the first scribe line group 341 and the second scribe line group 342 can be interwoven into a grid pattern to form a plurality of grid-shaped regions 35 after intersecting. However, the present invention is not limited to this, and the number and positions of the engraved line group 34 and the grid-shaped area 35 can also be adjusted according to requirements.

As shown in FIG. 2, the plurality of first scribe lines 3411 of the first scribe line group 341 may be straight lines that do not intersect each other (for example, parallel to each other), and the plurality of second scribe lines 3421 of the second scribe line group 342 may also be Straight lines that do not intersect each other (for example, parallel to each other). In addition, there may be an included angle between the first direction in which each first score line 3411 extends and the second direction in which each second score line 3421 extends. For example, the included angle may be an acute angle, an obtuse angle, or a right angle, so that the first score line group 341 After intersecting with the second scribe line group 342, grid-like regions 35 of different shapes can be generated. For example, the grid-like regions 35 can be square, rhombus, trapezoid or other irregularly shaped quadrilaterals.

As shown in FIG. 2, in this embodiment, each first scribe line 3411 of the first scribe line group 341 is a scribe line segment parallel to the X axis, and each second scribe line 3421 of the second scribe line group 342 is parallel The engraved line segment on the Y axis is perpendicular to each first engraved line 3411, so that the first engraved line group 341 and the second engraved line group 342 can intersect to form a square grid-shaped area 35. As a result, since each first scribe line 3411 of the first scribe line group 341 and each second scribe line 3421 of the second scribe line group 342 are independent straight line segments without turning sections and turning line segments, the processing The equipment can process each first scribe line 3411 and each second scribe line 3421 in the first direction and the second direction respectively, without frequent acceleration, deceleration, rotation or turning, which can reduce the processing time and greatly increase the production capacity. Effect.

In addition, as shown in FIGS. 1 and 2, the scribe line pattern 33 includes a first scribe line 3411 extending in the X-axis direction and a second scribe line 3421 extending in the Y-axis direction, so that the scribe line pattern 33 can effectively extract from Different angles of light. Generally, the light energy extraction rate of the engraved line parallel to the light direction is worse than that of the engraved line perpendicular to the light direction. Therefore, for example, if the irradiation direction of the light source 40A (that is, the light direction) is the Y-axis direction (As shown in Fig. 2), the light energy can be effectively extracted through each first scribe line 3411 extending along the X-axis direction to achieve the predetermined luminous effect; if the irradiation direction of the light source 40B is the X-axis direction (as shown in Fig. 2) Show), the second engraved lines 3421 extending along the Y-axis direction can effectively extract light energy to achieve the predetermined luminous effect. It can be seen that the multiple engraved line groups 34 of the engraved line pattern 33 can effectively extract light from different angles, so that the setting direction, position and quantity of the light source are not limited and can be freely matched and selected according to different requirements of the product.

In addition, the plurality of scribed line groups 34 form a grid-shaped area 35 by intersecting each other, so that the intersection of the plurality of scribed line groups 34 can be processed multiple times to increase the depth of the intersection, and achieve the effect of further increasing the light extraction energy.

In some embodiments, each scribe line of the scribe line pattern 33 (for example, the first scribe line 3411 and the second scribe line 3421) may have different scribe line depths or scribe line widths. For example, the deeper the scribe line depth or the wider the scribe line width of the scribe line pattern 33, the more light energy that can be extracted and the higher the brightness, the scribe line depth or the scribe line width of each scribe line It can be adjusted according to the light source irradiation direction. For example, the scribe line depth or scribe line width of the scribe line parallel to the light source irradiation direction in the scribe line pattern 33 can be greater than the scribe line depth or width of the scribe line perpendicular to the light source irradiation direction. The effect of light extraction energy is improved, so that the light energy extracted by the engraved line parallel to the light source irradiation direction is the same as the light energy extracted by the engraved line perpendicular to the light source irradiation direction, so that the engraved line pattern 33 emits uniform light.

As shown in FIGS. 1 and 2, in this embodiment, the first scribe line group 341 and the second scribe line group 342 corresponding to each light-transmitting hole 121 can be further along the first direction and The second direction extends to be connected to each other, so that the scribe line pattern 33 forms a complete pattern and improves the light extraction rate of the scribe line pattern 33. For example, in this embodiment, two first scribe lines 3411 of the first scribe line group 341 corresponding to each light-transmitting hole 121 and two second scribe lines 3421 of the second scribe line group 342 are further extended and connected to each other. A closed figure is formed (here, the closed figure is a square), and the closed figure corresponds to a character 21 of the button 20 of the light-emitting area 32 (here, the character 21 is the letter A). The above-mentioned closed figure can be arranged around the character 21 based on the position of the character 21, and a plurality of grid-like regions 35 are located in the range surrounded by the closed figure, that is, the multiple grid-like regions 35 are closer to the character 21 than the closed figure, so as to It is ensured that predetermined light energy can be extracted around the character 21 to achieve the required brightness.

As shown in FIG. 2, since each first scribe line 3411 of the first scribe line group 341 and each second scribe line 3421 of the second scribe line group 342 are straight lines without turning areas and turning line segments, it can be The length of each line segment is further controlled to match the shape of the light-transmitting hole 121 or to facilitate the setting of a small area. For example, in this embodiment, the lengths of at least two of the plurality of first scribe lines 3411 of the first scribe line group 341 are different, and the length of at least two of the plurality of second scribe lines 3421 of the second scribe line group 342 is different. The length is different.

As shown in FIG. 3, it is a partial top view of the second embodiment of the illuminated keyboard of the present invention. The difference between this embodiment and the first embodiment of FIG. 2 is at least that the engraved pattern 33 of this embodiment only includes a grid In the area 35, specifically, the first scribe line group 341 of the scribe line pattern 33 in the light-emitting area 32 includes two first scribe lines 3411, and the second scribe line group 342 includes two second scribe lines 3421, so that the two first scribe lines The line 3411 and the two second engraved lines 3421 intersect each other to form a single grid-shaped area 35 corresponding to one of the light-transmitting holes 121 of the substrate 10.

As shown in FIG. 4, it is a partial top view of the third embodiment of the illuminated keyboard of the present invention. The difference between this embodiment and the second embodiment of FIG. The end of a scribe line 3411 is connected with the end of the two second scribe lines 3421 of the second scribe line group 342, so that the two first scribe lines 3411 and the two second scribe lines 3421 surround to form a single closed grid area 35 'And corresponds to one of the light-transmitting holes 121 of the substrate 10.

As shown in FIG. 5, it is a partial top view of the fourth embodiment of the illuminated keyboard of the present invention. The difference between this embodiment and the third embodiment of FIG. One scribe line 3411, the second scribe line group 342 includes a plurality of second scribe lines 3421, and the plurality of first scribe lines 3411 and the plurality of second scribe lines 3421 intersect each other to form a plurality of the aforementioned closed grid-like regions 35' , And each light-transmitting hole 121 of the substrate 10 corresponds to at least one grid-shaped area 35'.

As shown in FIG. 6, it is a partial top view of the fifth embodiment of the luminous keyboard of the present invention. In this embodiment, the plurality of scribed line groups 34 of the scribed line pattern 33 includes at least one first scribed line group 346 and one that intersect each other. The second scribe line group 347, here, the number of light-transmitting holes 121 in the assembly area 11 of the substrate 10 is seven, and the multiple scribe line groups 34 in the light-emitting area 32 of the light guide plate 30 include the first scribe line group 346 and The second scribe line group 347 corresponds to the plurality of light-transmitting holes 121 respectively. Taking the first scribe line group 346 and the second scribe line group 347 corresponding to one of the light-transmitting holes 121 as an example, the first scribe line group 346 includes a plurality of first scribe lines 3461, and the plurality of first scribe lines 3461 are mutually connected. Parallel and extending in the first direction (for example, each first scribe line 3461 is parallel to the X axis), the second scribe line group 347 includes a plurality of second scribe lines 3471, and the plurality of second scribe lines 3471 are parallel to each other and face the second The direction extends (for example, each second scribe line 3471 is parallel to the Y axis). In addition, a plurality of first scribe lines 3461 and second scribe lines 3471 respectively pass through each light-transmitting hole 121 and intersect to form a plurality of square grid-shaped regions 35A. Thereby, the grid-shaped area 35A can be surrounded by a plurality of engraved lines extending in different directions (for example, the first engraved line 3461 and the second engraved line 3471), which can also effectively extract light from different angles for the benefit of the light source. It is configured, and each first scribe line 3461 and each second scribe line 3471 can be processed at one time, which can greatly reduce the processing time of processing equipment and increase productivity. In this embodiment, a part of the first scribe line 3461 of the first scribe line group 346 corresponding to each light-transmitting hole 121 and a part of the second scribe line 3471 of the second scribe line group 347 are further extended and connected to each other. Surround to form three closed figures. The closed figure can be set based on the character position on the button 20. For example, the closed figure surrounds the character, corresponding to the character position of the button 20 in the light-emitting area 32. In addition, the sizes of the plurality of first scribe lines 3461 may be different from each other, the sizes of the plurality of second scribe lines 3471 may be different from each other, and the width of the scribe line of the scribe pattern 33 (the first scribe line 3461 or the second scribe line 3471) The wider, the more light energy can be extracted and the higher the brightness. For example, in some embodiments, the entire width of the first scribe line 3461 and the second scribe line 3471 that extend and connect to each other to form the outermost closed pattern may be larger than the entire width of the extended and connected to each other to form the innermost closed pattern. The overall width of the first scribe line 3461 and the second scribe line 3471 is, but not limited. In other embodiments, the overall width of the first scribe line 3461 and the second scribe line 3471 may be substantially equal to each other.

As shown in FIG. 7, it is a partial top view of the sixth embodiment of the luminous keyboard of the present invention. In this embodiment, the plurality of scribe line groups 34 also includes at least one first scribe line group 346' and at least one second scribe line group that intersect each other. Engraved line group 347', here, the number of light-transmitting holes 121 in the assembly area 11 of the substrate 10 is seven, and the plurality of engraved line groups 34 in the light-emitting area 32 of the light guide plate 30 includes a first engraved line group 346' And a second scribe line group 347 ′ to correspond to one of the light-transmitting holes 121. The first score line group 346' includes a plurality of first score lines 3461' (here are two first score lines 3461', but this is not limited to the number of first score lines 3461'). In some embodiments, The above-mentioned multiple first score lines 3461' are straight lines. The second score line group 347' includes a plurality of second score lines 3471' (here are two second score lines 3471', but this is not limited to the number of second score lines 3471'). At least one of the lines 3471 ′ is a curved line, and the plurality of second scribe lines 3471 ′ intersect with the plurality of first scribe lines 3461 ′ to form at least one arc-shaped lattice area 35B corresponding to the light-transmitting hole 121. In some embodiments, the aforementioned plurality of second scribe lines 3471' are parallel to each other.

In some embodiments, the second scribe line 3471 ′ of the second scribe line group 347 ′ can further form a closed pattern. In the embodiment of FIG. 8, the two second scribe lines of the second scribe line group 347 ′ The closed figure formed by 3471'(1) and 3471'(2) is a circle, but it is not limited to this. As shown in FIG. 8, it is a partial top view of the seventh embodiment of the luminous keyboard of the present invention. The difference between this embodiment and the above-mentioned sixth embodiment is at least in that the multiple first engraved lines of the first engraved line group 346' of this embodiment The lines 3461' are not parallel to or intersect each other within the range of the light-transmitting portion 12. Here, the plurality of first scribe lines 3461' are arranged radially. The second engraved line 3471'(1) and the second engraved line 3471'(2) have different radii of curvature, and the sizes of the enclosed patterns formed by multiple second engraved lines 3471'(1) and 3471'(2) are different, For example, the diameter of the circular closed figure formed by the second scribe line 3471'(1) is smaller than the diameter of the circular closed figure formed by the second scribe line 3471'(2). In addition, two second scribe lines 3471'(1), 3471'(2) intersects a plurality of first scribe lines 3461' to form a plurality of arc-shaped lattice-shaped regions 35B in each light-transmitting hole 121. Thereby, the grid-shaped area 35B can be surrounded by a plurality of engraved lines extending in different directions, which can also effectively extract light from different angles to facilitate the configuration of the light source, and each of the first engraved lines 3461' and the second engraved line Lines 3471'(1) and 3471'(2) can be processed at one time, which can greatly reduce the processing time of processing equipment and increase productivity. In addition, the second engraved lines 3471'(1) and 3471'(2) forming a circular closed pattern can extract light from multiple different directions, which is more conducive to the configuration of the light source.

In some embodiments, the plurality of scribe line groups 34 may also include more than three scribe line groups to form more grid-shaped regions of different shapes, such as triangular grid-shaped regions or hexagonal grid-shaped regions, which are respectively described as follows.

As shown in FIG. 9, it is a partial top view of the eighth embodiment of the luminous keyboard of the present invention. In this embodiment, the plurality of scribe line groups 34 include a first scribe line group 343 and a second scribe line group 344 that intersect each other. And a third scribe line group 345, the first scribe line group 343 includes a plurality of first scribe lines 3431, the plurality of first scribe lines 3431 are straight and extend in the first direction, and the second scribe line group 344 includes a plurality of first scribe lines 3431. Two scribe lines 3441, a plurality of second scribe lines 3441 are straight lines and extend in the second direction, the third scribe line group 345 includes a plurality of third scribe lines 3451, and the plurality of third scribe lines 3451 are straight lines and face the third direction Extend, and the above-mentioned first direction, second direction and third direction are different from each other. For example, in this embodiment, the first scribe lines 3431 are parallel to each other and extend along the X axis, the second scribe lines 3441 are parallel to each other and the included angle with the X axis is 60°, and the third scribe lines 3451 are parallel to each other and extend along the X axis. The included angle of the X axis is 120°, which constitutes the first direction, the second direction and the third direction to be different from each other, and enables the first scribe line group 343, the second scribe line group 344 and the third scribe line group 345 to intersect each other. A plurality of triangular grid-shaped regions 35C are formed, and light from different directions can be extracted.

As shown in FIG. 10, it is a partial top view of the ninth embodiment of the illuminated keyboard of the present invention. In this embodiment, the plurality of scribe line groups 34 also includes a first scribe line group 343A, a second scribe line group 344A, and a third scribe line group 345A that intersect each other. The first scribe line group 343A includes the first scribe line group 343A. A plurality of first scribe lines 3431A extending in one direction, a second scribe line group 344A includes a plurality of second scribe lines 3441A extending in a second direction, and a third scribe line group 345A includes a plurality of third scribe lines extending in a third direction. For example, the first scribe lines 3431A are parallel to each other and extend along the X axis, the second scribe lines 3441A are parallel to each other and the included angle with the X axis is 60°, and the third scribe lines 3451A are parallel to each other and extend along the X axis. The angle with the X axis is 120°. The difference between this embodiment and the above-mentioned eighth embodiment is at least that the spacing between the plurality of first scribe lines 3431A is different from the spacing between the plurality of first scribe lines 3431 of the eighth embodiment, and the plurality of second scribe lines The spacing between 3441A is different from the spacing between the plurality of second scribe lines 3441 in the eighth embodiment, and the spacing between the plurality of third scribe lines 3451A is different from that of the third scribe lines 3451 in the eighth embodiment. The spacing between the first scribe line group 343A, the second scribe line group 344A, and the third scribe line group 345A can form a combination of a plurality of triangular grid-shaped regions 35D and a plurality of hexagonal grid-shaped regions 35E after intersecting each other, and Can extract light from more directions.

As shown in FIG. 11, it is a partial top view of the tenth embodiment of the luminous keyboard of the present invention. In this embodiment, the plurality of scribe line groups 34 also include a first scribe line group 343B that intersects each other, and a second scribe line group 344B and a third scribe line group 345B. The first scribe line group 343B includes a plurality of first scribe lines 3431B extending in a first direction, and the second scribe line group 344B includes a plurality of second scribe lines extending in a second direction 3441B, the third score line group 345B includes a plurality of third score lines 3451B extending in the third direction. For example, the first score lines 3431B are parallel to each other and extend along the X-axis direction, and the second score lines 3441B are parallel to each other. The included angle with the X axis is 60°, and the third scribe lines 3451B are parallel to each other and the included angle with the X axis is 120°. The difference between this embodiment and the embodiment of FIG. 9 and FIG. 10 is at least that the ends of the plurality of first scribe lines 3431B, the plurality of second scribe lines 3441B, and the third scribe line 3451B are connected to each other in this embodiment. A plurality of hexagonal grid-shaped regions 35F are formed.

In the above embodiments corresponding to FIGS. 9 to 11, the scribe line pattern 33 may further include at least one surrounding scribe line, wherein the surrounding scribe line may be a closed pattern with a circle, a square, or other irregular shapes. As shown in FIG. 9, in this embodiment, the engraved line pattern 33 further includes a plurality of encircling engraved lines (a circular encircling engraved line 37 and a square encircling engraved line 37A in the figure), and two encircling engraved lines 37 , 37A are respectively connected in series with a plurality of scribe line groups 34 corresponding to each light-transmitting hole 121. In some embodiments, the two surrounding scribe lines 37 and 37A may intersect each other (as shown in FIG. 9) or not, or the above Each surrounding engraved line 37, 37A can also be a continuous line segment (as shown in FIG. 9) or a discontinuous line segment. For example, as shown in FIG. 10, the circular encircling score line 37B of this embodiment is a discontinuous line segment and has a plurality of notches 38B, and the square encircling score line 37C is also a discontinuous line segment and has a plurality of notches 38C, and the above-mentioned multiple The notches 38B and 38C can correspond to the areas where the light-emitting area 32 of the light guide plate 30 is shielded by the assembly area 11 of the substrate 10 to reduce the waste of light energy. Alternatively, as shown in FIG. 11, the circular surrounding scribe line 37D and the square surrounding scribe line 37E of this embodiment do not intersect each other, and the surrounding scribe line 37D is located in the surrounding range of the surrounding scribe line 37E.

The scribe pattern 33 of the above embodiments can have grid-like regions of different sizes to effectively increase the light extraction efficiency. Specifically, the corresponding structures above the different light-emitting areas 32 of the light guide plate 30 (such as the structure of the button 20, the number, position, or size of the light-transmitting holes 121 of the substrate 10, or the structure and size of the connecting member 22) are not exhaustive. same. For example, the areas, numbers, and positions of characters on different keys 20 corresponding to different light-emitting areas 32 are different, and the length of some keys 20 (such as Caps Lock, Shift, Ctrl, Enter, or Backspace) is also different. It is longer than the length of other parts of the keys 20 (such as letter keys and number keys), so the structure, position, or number of the connectors 22 corresponding to the keys 20 of different lengths will also be different. Based on this, the engraved line patterns 33 in each light-emitting area 32 have multiple sets of engraved lines (including multiple engraved lines) extending in different directions and grid-like regions of different sizes and shapes to achieve the engraving of each light-emitting area 32. The line pattern 33 can be adjusted and configured according to the corresponding structure above it. It can extract light from different directions and is more conducive to the configuration of the light source. It can also effectively increase the light extraction efficiency and/or reduce the light extraction efficiency to improve the light-emitting keyboard 1 Luminous benefits.

From the above, as shown in FIG. 12, it is a partial top view of the eleventh embodiment of the illuminated keyboard of the present invention. The difference between this embodiment and the embodiment of FIG. The spacing between the 3411 is different, and the spacing between the second scribe lines 3421 of the second scribe line group 342 is also different, so that the light-emitting area 32 of the light guide plate 30 has grid-like regions of different sizes. For example, in this embodiment, the engraved pattern 33 in the light-emitting area 32 includes a plurality of first grid-shaped regions 35G and a plurality of second grid-shaped regions 35H, and the size of each first grid-shaped region 35G is different from that of each second grid-shaped region 35G. The size of the grid-shaped region 35H is different, and the first grid-shaped region 35G and the second grid-shaped region 35H have different light extraction rates.

As shown in FIG. 12, the size change of the grid area of the engraved pattern 33 can be configured according to the structure of the button 20. For example, in this embodiment, the button 20 corresponding to the light-emitting area 32 has a character 21 (here the character is Letter A), the size of the plurality of second grid-shaped regions 35H is larger than the plurality of first grid-shaped regions 35G, and the plurality of second grid-shaped regions 35H are adjacent to the characters 21 compared to the plurality of first grid-shaped regions 35G. In the same area, the number or density of the first grid-shaped area 35G is greater than the number or density of the second grid-shaped area 35H. This can increase the brightness around the button 20 (away from the character 21), but this is not limited. In some embodiments, the plurality of first grid-shaped areas 35G may also be adjacent to the characters 21 compared to the plurality of second grid-shaped areas 35H, so as to increase the brightness of the character 21 area, for example, corresponding to the smaller area on the button 20 For the character 21 (such as a comma), the number or density of the grid-shaped area adjacent to the character 21 in the light-emitting area 32 can be further increased, which corresponds to the non-character area where the button 20 has no characters 21 but needs a halo effect. The light-emitting area 32 is adjacent The number or density of grid-like areas in the wordless area is relatively low.

However, the above-mentioned embodiments are only examples. In some embodiments, the distribution position, size, number, or density of the plurality of second grid-shaped regions 35H and the plurality of first grid-shaped regions 35G may also be based on the assembly area 11 of the substrate 10 The structure of the, the structure of the connector 22 or other components are adjusted to further increase the light extraction rate of each different area of the illuminated keyboard 1.

In summary, according to the light-emitting keyboard of the embodiment of the present invention, the engraved line pattern in the light-emitting area corresponding to each key through the light guide plate is a grid pattern, and the instant line pattern includes a plurality of engraved line groups and at least one grid-like area, Multiple engraved line groups intersect each other to form a grid-like area, and the grid-like area corresponds to the light-transmitting part, so that the engraved line pattern can effectively extract light from different angles, which facilitates the configuration of the light source and improves the luminous efficiency, and greatly reduces the processing equipment Processing time and increase productivity.

Although the technical content of the present invention has been disclosed in the preferred embodiments as above, it is not intended to limit the present invention. Anyone who is familiar with this technique and makes some changes and modifications without departing from the spirit of the present invention should be covered by the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of the attached patent application.

1: Illuminated keyboard 10: substrate 11: Assembly area 12: Translucent part 121: light hole 20: Button 21: Character 22: Connector 30: Light guide plate 31: The first surface 32: luminous area 33: Engraved pattern 34: Engraved line group 341: First Engraved Line Group 3411: The first reticle 342: Second Engraved Line Group 3421: Second scribe line 343,343A,343B,346,346’: the first line group 3431,3431A,3431B,3461,3461’: the first marking line 344,344A,344B,347,347’: The second marking group 3441,3441A,3441B,3471,3471’,3471’(1),3471’(2): the second score line 345, 345A, 345B: the third line group 3451, 3451A, 3451B: the third line 35,35’,35A～35H: grid area 36: second surface 37, 37A～37E: Surrounding the engraved line 38B, 38C: gap 40, 40A, 40B: light source

[Figure 1] is an exploded perspective view of the first embodiment of the illuminated keyboard of the present invention. [Figure 2] is a partial top view of the first embodiment of the illuminated keyboard of the present invention. [Figure 3] is a partial top view of the second embodiment of the illuminated keyboard of the present invention. [Figure 4] is a partial top view of the third embodiment of the illuminated keyboard of the present invention. [Figure 5] is a partial top view of the fourth embodiment of the illuminated keyboard of the present invention. [Figure 6] is a partial top view of the fifth embodiment of the illuminated keyboard of the present invention. [Figure 7] is a partial top view of the sixth embodiment of the illuminated keyboard of the present invention. [Figure 8] is a partial top view of the seventh embodiment of the illuminated keyboard of the present invention. [Figure 9] is a partial top view of the eighth embodiment of the illuminated keyboard of the present invention. [Figure 10] is a partial top view of the ninth embodiment of the illuminated keyboard of the present invention. [Figure 11] is a partial top view of the tenth embodiment of the illuminated keyboard of the present invention. [Figure 12] is a partial top view of the eleventh embodiment of the illuminated keyboard of the present invention.

11: Assembly area

12: Translucent part

121: light hole

20: Button

21: Character

31: The first surface

32: luminous area

34: Engraved line group

341: First Engraved Line Group

3411: The first reticle

342: Second Engraved Line Group

3421: Second scribe line

35: grid area

40A, 40B: light source

Claims (17)

A luminous keyboard, including: A substrate, including a plurality of assembly areas, each assembly area has a light-transmitting part; A plurality of buttons are arranged above the assembly areas of the substrate; and A light guide plate is disposed under the substrate and includes a light-emitting area corresponding to one of the assembly areas. The light-emitting area is provided with a scribe line pattern, and the scribe line pattern includes a plurality of scribe line groups and at least one grid The at least one grid-shaped area is formed by intersecting the scribed line groups to form the at least one grid-shaped area, and the at least one grid-shaped area corresponds to the light-transmitting portion. The illuminated keyboard according to claim 1, wherein the light guide plate includes a first surface and a second surface opposite to each other, the first surface faces the substrate and is adjacent to the keys relative to the second surface, the first surface Including the light-emitting area. The luminous keyboard according to claim 1, wherein the scribe line groups include a first scribe line group and a second scribe line group that intersect each other, the first scribe line group includes a plurality of first scribe lines, the The first scribe line is a straight line and extends in a first direction, the second scribe line group includes a plurality of second scribe lines, the second scribe lines are straight and extend in a second direction, and the first direction is different from the The second direction. The illuminated keyboard according to claim 3, wherein the first scribe lines are parallel to each other, and the second scribe lines are parallel to each other. The illuminated keyboard according to claim 3, wherein the first direction and the second direction are perpendicular to each other. The illuminated keyboard according to claim 3, wherein the lengths of at least two of the first engraved lines are different from each other. The luminous keyboard according to claim 3, wherein the depth or the width of the scribe line of at least one of the first scribe lines is different from the depth or the scribe line of at least one of the second scribe lines width. The illuminated keyboard according to claim 3, wherein at least two of the first scribe lines and at least two of the second scribe lines intersect to form a closed pattern. The luminous keyboard according to claim 1, wherein the scribe line groups include a first scribe line group, a second scribe line group, and a third scribe line group that intersect each other, and the first scribe line group includes a plurality of The first scribe line, the first scribe lines are straight and extend in a first direction, the second scribe line group includes a plurality of second scribe lines, the second scribe lines are straight and extend in a second direction, the The third scribe line group includes a plurality of third scribe lines, the third scribe lines are straight lines and extend toward a third direction, and the first direction, the second direction, and the third direction are different from each other. The illuminated keyboard according to claim 9, wherein the engraved line pattern further includes an encircling engraved line, and the encircling engraved line is connected to the engraved line groups. The illuminated keyboard according to claim 1, wherein the scribe line groups include a first scribe line group and a second scribe line group that intersect each other, the first scribe line group includes a plurality of first scribe lines, and the first scribe line group The group of two scribe lines includes a plurality of second scribe lines, and at least one of the second scribe lines is a curve. The illuminated keyboard according to claim 11, wherein the first engraved lines are straight lines. The illuminated keyboard according to claim 11, wherein the second score lines are parallel to each other. The illuminated keyboard according to claim 11, wherein the curve forms a closed figure. The luminous keyboard according to claim 1, wherein the light-transmitting portion includes a plurality of light-transmitting holes, the scribed line groups intersect each other to form a plurality of grid-shaped regions, and the scribed line groups and the grid-shaped regions correspond to For the light-transmitting holes, the scribe line pattern further includes a surrounding scribe line, and the surrounding scribe line connects the scribe line groups. The illuminated keyboard according to claim 15, wherein the key corresponding to the illuminated area has a character, and the encircling engraved line is further arranged around the character. The illuminated keyboard according to claim 1, wherein the engraved line groups intersect each other to form a plurality of grid-like regions, the grid-like regions include a first grid-like region and a second grid-like region, and the first grid The size of the grid-shaped area is different from the size of the second grid-shaped area.

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