Luminous keyboard and luminous keys thereof

Abstract

The utility model discloses a luminous keyboard and luminous keys thereof. The luminous keyboard comprises a bottom plate, a key assembly, a light guide plate, a white light source and a dimming sheet, the key assembly is arranged on the bottom plate and comprises a plurality of light-emitting keys, and at least one of the light-emitting keys comprises a key cap and a lifting supporting mechanism. The lifting supporting mechanism has a color cast color and is connected to the key cap and the bottom plate so that the key cap can move up and down relative to the bottom plate. The light guide plate is arranged below the key assembly. The white light source irradiates the light guide plate. The dimming piece is arranged between the light guide plate and the key assembly and is provided with a plurality of light-transmitting parts corresponding to the positions of the light-emitting keys, the light-transmitting parts are provided with lifting supporting mechanisms with complementary colors and corresponding to color cast colors, and light in the light guide plate penetrates through the light-transmitting parts and the lifting supporting mechanisms to generate white light which enters the key caps. According to the utility model, the color cast problem that the light emitting color of the key is yellowish due to yellowing of the lifting support mechanism can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a light-emitting keyboard and a light-emitting key thereof, in particular to a light-emitting keyboard and a light-emitting key thereof using light-adjusting sheets with complementary colors to compensate for color deviation of a lifting support mechanism. BACKGROUND

[0002] With the development of technology, the design of keyboards is becoming more and more diversified. When choosing a keyboard, users not only pay attention to the basic input function of the keyboard, but also pay attention to the visual effect of the keyboard. At present, light-emitting keyboards have been introduced on the market. In addition to attracting users visually, they can also be used in places with insufficient light at night.

[0003] Generally speaking, in order to make the keyboard have the key light-emitting function, the common design at present is to configure a plurality of light-emitting diodes corresponding to each key on the keyboard bottom plate. In this way, the light-emitting diodes can emit light to penetrate the lifting support mechanism to the keycap to produce the keycap light-emitting effect. However, due to the consideration of structural strength, nylon or glass fiber material is often added to the lifting support mechanism, or in order to be environmentally friendly and easy to recycle, the design composed of post-consumer recycled (PCR) plastic materials is often used. Therefore, the yellowing problem of the lifting support mechanism elements often occurs, which causes the key light-emitting color to be yellow, thereby affecting the light-emitting uniformity of the light-emitting key and the visual aesthetic effect when in use. SUMMARY

[0004] In view of the problems in the prior art, the utility model provides a light-emitting keyboard and a light-emitting key thereof to solve the above problems.

[0005] Therefore, the technical problem to be solved by the utility model is to provide a light-emitting keyboard and a light-emitting key thereof, which comprise:

[0006] a bottom plate;

[0007] a key assembly, the key assembly being arranged on the bottom plate and comprising a plurality of light-emitting keys, at least one of the plurality of light-emitting keys comprising:

[0008] a keycap; and

[0009] a lifting support mechanism, the lifting support mechanism being a lifting support mechanism with color deviation, the lifting support mechanism being connected to the keycap and the bottom plate to enable the keycap to move up and down relative to the bottom plate;

[0010] a light guide plate arranged below the key assembly;

[0011] a white light source irradiating the light guide plate; and

[0012] A light modulation sheet is disposed between the light guide plate and the key assembly, and the light modulation sheet has a plurality of light transmission portions corresponding to positions of the plurality of light-emitting keys. One of the light transmission portions is a light transmission portion with a complementary color corresponding to the lifting support mechanism with the color cast. Light in the light guide plate passes through the light transmission portion with the complementary color and the lifting support mechanism to generate white light incident on the key cap.

[0013] As an optional technical solution, the lifting support mechanism is a nylon lifting support mechanism, a glass fiber lifting support mechanism, or a post-consumer recycled plastic lifting support mechanism. The light transmission portion with the complementary color is coated with a complementary color ink layer to have the complementary color.

[0014] As an optional technical solution, the lifting support mechanism is a yellowish lifting support mechanism, and the light transmission portion with the complementary color is a blue light transmission portion.

[0015] As an optional technical solution, the light modulation sheet is a plastic light modulation sheet with the complementary color.

[0016] As an optional technical solution, the light modulation sheet further has a plurality of light shielding portions disposed adjacent to the plurality of light transmission portions. The plurality of light shielding portions are located between the plurality of light transmission portions and are used to block light from shining on gaps between adjacent key caps.

[0017] As an optional technical solution, the light-emitting keyboard further includes a thin film circuit board assembly disposed on the bottom plate.

[0018] The utility model also provides a light-emitting key, the light-emitting key includes:

[0019] A bottom plate;

[0020] A key cap;

[0021] A lifting support mechanism connected to the key cap and the bottom plate to allow the key cap to move up and down relative to the bottom plate;

[0022] A light guide plate disposed below the key cap; and

[0023] A light modulation sheet including a light transmission portion with a color, the light modulation sheet is disposed between the light guide plate and the bottom plate, and light in the light guide plate passes through the light modulation sheet to be incident on the key cap.

[0024] As an optional technical solution, the light modulation sheet is a transparent film with ink with a color to form the light transmission portion with the color.

[0025] As an optional technical solution, the light-adjusting sheet further has a light-shielding part, and the light-shielding part and the light-transmitting part with the color are arranged alternately.

[0026] As an optional technical solution, the light-adjusting sheet is a plastic film with the color.

[0027] Compared with the prior art, the light-emitting keyboard and the light-emitting key thereof are designed for color deviation compensation by arranging the light-adjusting sheet. When the light in the light guide plate passes through the light-transmitting part of the light-adjusting sheet, the bottom plate and the lifting support mechanism, the light-transmitting part with the complementary color and the lifting support mechanism with the color deviation color can produce complementary matching of the color light to provide color light compensation effect for the light, so that the light can produce white light after passing through the light-transmitting part, the bottom plate and the lifting support mechanism, and the white light is incident to the keycap, thereby effectively solving the color deviation problem of the yellowing of the lifting support mechanism leading to the color deviation of the light-emitting key in the prior art, and greatly improving the light-emitting uniformity of the light-emitting key and the visual aesthetic effect in use.

[0028] The utility model is described in detail below in combination with the drawings and specific embodiments, but is not limited to the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A perspective simplified schematic view of the light-emitting keyboard according to an embodiment of the utility model.

[0030] Figure 2 A cross-sectional view of the light-emitting keyboard of Figure 1 along the cross-sectional line A-A.

[0031] Figure 3 A cross-sectional view of the light-emitting keyboard according to another embodiment of the utility model. DETAILED DESCRIPTION

[0032] The following content will be combined with the drawings, and the technical content will be illustrated by specific embodiments. Those skilled in the art can easily understand other advantages and effects from the content of the specification. Other different embodiments can also be implemented or applied. The details in the specification can also be modified and changed based on different views and applications without departing from the spirit. In particular, the connection relationship and relative position of each element in the drawings (such as the structure and size of the key assembly / bottom plate / light guide plate / light-adjusting sheet / thin film circuit board) are only for exemplary purposes, and do not represent the actual situation of the implementation.

[0033] Please refer to Figure 1 and Figure 2 , Figure 1 A perspective simplified schematic view of the light-emitting keyboard according to an embodiment of the utility model, Figure 2 A cross-sectional view of the light-emitting keyboard of Figure 1A cross-sectional view of the illuminated keyboard 10 along section line AA, as shown in the figure. Figure 1 as well as Figure 2 As shown, the backlit keyboard 10 includes a base plate 12, a key assembly 14, a light guide plate 16, a white light source (not shown in the figure, which may be a light-emitting diode light source housed in the light guide plate 16 or disposed on one side of the light guide plate 16 (but is not limited thereto) to produce white light), and a dimming disc 18. The key assembly 14 is disposed on the base plate 12 and includes a plurality of backlit keys for the user to press to perform the user's desired input function. It should be noted that the backlit keyboard 10 is preferably used on portable electronic devices (such as notebook computer keyboards or folding keyboard devices) with a cladding mechanism consisting of a top cover and a bottom shell for the user to press to perform the user's desired input function, but is not limited thereto.

[0034] The color shift compensation design of the dimming sheet proposed in this utility model can be applied to at least one of multiple illuminated keys. The number of keys depends on the actual application of the illuminated keyboard 10. For the sake of simplicity, the following description focuses on one of the illuminated keys with the color shift compensation design of the dimming sheet (such as...). Figure 1 The description focuses on the illuminated button 15 shown; the structural design of other illuminated buttons using the same design can be deduced similarly. Figure 1 as well as Figure 2 It is understood that the illuminated button 15 includes a keycap 20 and a lifting support mechanism 22. The lifting support mechanism 22 is disposed between the base plate 12 and the keycap 20. In this embodiment, the lifting support mechanism 22 can preferably be a scissor-type structure (but is not limited thereto). In this way, the keycap 20 can be moved between the pressed position and the unpressed position relative to the base plate 12 through the scissor-type connection design of the lifting support mechanism 22 so that the user can press it.

[0035] A light guide plate 16 is disposed below the key assembly 14. A dimming sheet 18 can be a transparent film (e.g., PET film) and is disposed between the light guide plate 16 and the key assembly 14. Light L provided by a white light source in the light guide plate 16 passes through the dimming sheet 18 and the lifting support mechanism 22 to generate white light incident on the keycap 20, thereby producing a key illumination effect. More specifically, in this embodiment, the lifting support mechanism 22 of the illuminated key 15 has a color shift, and the dimming sheet 18 is printed with complementary color ink to form a light-transmitting portion 19 with a complementary color. For example, the lifting support mechanism 22 can be made of nylon, glass fiber, or post-consumer recycled (PCR) plastic material and has a yellowish color shift. The dimming sheet 18 can be coated with a complementary color ink layer 24 corresponding to the lifting support mechanism 22 to form a light-transmitting portion 19 with a blue complementary color on the dimming sheet 18. It should be noted that the color shift compensation design of the dimming sheet of this utility model is not limited to the design of the light-transmitting part 19 having complementary colors. In another embodiment, the dimming sheet of this utility model can be a whole structure composed directly of plastic film sheets with complementary colors, thereby simplifying the dimming sheet design of the light-emitting button.

[0036] In this way, through the color shift compensation design of the dimming sheet 18, when the light L in the light guide plate 16 passes through the light-transmitting part 19 and the lifting support mechanism 22, the light-transmitting part 19 with complementary colors and the lifting support mechanism 22 with color shift can produce color light complementary matching and provide color light compensation effect for the light L. This allows the light L to generate white light after passing through the light-transmitting part 19 and the lifting support mechanism 22 and be incident on the keycap 20, thereby effectively solving the color shift problem of yellowing of the lifting support mechanism causing the key light color to be yellowish, which was mentioned in the previous technology. This greatly improves the light uniformity of the backlit key and the visual aesthetic effect during use.

[0037] In practical applications, the dimming sheet 18 can be printed with black ink to form multiple light-shielding portions 21 (in... Figure 2 (Two are shown in the image, but not limited to this), the light-shielding part 21 can be adjacent to the light-transmitting part 19 to block part of the light L in the light guide plate 16, thereby blocking the light L from shining into the gap between adjacent keycaps, thus effectively improving the keyboard light leakage problem. Additionally, as shown... Figure 2 As shown, the backlit keyboard 10 may further include a thin-film circuit board assembly 26. The thin-film circuit board assembly 26 may be a conventional transparent circuit trigger diaphragm and is disposed on the base plate 12. In this way, when the keycap 20 is pressed by an external force to trigger the thin-film circuit board assembly 26, the thin-film circuit board assembly 26 can generate a corresponding trigger signal to perform the corresponding key input operation.

[0038] It is worth mentioning that in addition to the above-mentioned design of the key emitting white light through the color compensation of the light adjusting sheet, the light-emitting keyboard 10' according to another embodiment of the present application can also adopt a key color light emitting design. For example, please refer to Figure 3 , Figure 3 The cross-sectional view of the light-emitting keyboard 10' according to another embodiment of the present application is shown in Figure 3 The elements with the same reference numerals in the above-mentioned drawings represent the same or similar structures and functions. The following will be described in detail with respect to one of the light-emitting keys 15' of the light-emitting keyboard 10' having the key color light emitting design. The structure design of the other light-emitting keys adopting the same design can be similarly described, and thus will not be described here. As shown in Figure 3 The light-emitting key 15' includes the bottom plate 12, the light guide plate 16, the key cap 20, the lifting support mechanism 22, and the light adjusting sheet 18'. The light adjusting sheet 18' can be a transparent film (such as a PET film) and adopt an arrangement in which the light-shielding portion 21 and the color light-transmitting portion 19' having a color are alternately arranged. More specifically, the light adjusting sheet 18' can be printed with a color (or color layer) (such as the ink 24' shown in Figure 3 with a corresponding color (such as dark blue), but is not limited thereto) or can be printed with a color (or color layer) including a pattern to form the color light-transmitting portion 19' on the light adjusting sheet 18'. The colors (or color layers) applied to the respective color light-transmitting portions corresponding to different light-emitting keys can preferably be different from each other to produce a multi-color light effect, but the present application is not limited thereto (it can also adopt a single color light emitting design). Thus, as shown in Figure 3 The light L in the light guide plate 16 can be transmitted to the light-emitting key 15' through the light adjusting sheet 18', so that the light L transmitted through the light-emitting key 15' can have a corresponding color effect, and the light-emitting keyboard 10' can present a diversified color light visual effect due to the presence of the color light-transmitting portion. It should be noted that the key color light emitting design of the present application can not be limited to the design of the color light-transmitting portion 19' having a color. In another embodiment, the light adjusting sheet of the present application can be a whole structure directly composed of a plastic film having one or more colors, so as to simplify the light adjusting sheet design of the light-emitting key.

[0039] In summary, the light-emitting keyboard and the light-emitting key thereof of the utility model, through setting light adjusting sheet to carry out color deviation compensation / color light emitting design, when the light in the light guide plate passes through the light transmission part of the light adjusting sheet, the bottom plate and the lifting support mechanism, the light transmission part with complementary color and the lifting support mechanism with color deviation color can produce color light complementary matching to provide color light compensation effect for the light, so that the light can produce white light after passing through the light transmission part, the bottom plate and the lifting support mechanism and is incident to the key cap, thereby effectively solving the color deviation problem of the light-emitting key color deviation caused by the yellowing of the lifting support mechanism in the prior art, thereby greatly improving the light-emitting uniformity of the light-emitting key and the visual aesthetic effect in use.

[0040] The light-emitting keyboard and the light-emitting key thereof of the utility model can also carry out color light emitting design by setting the light adjusting sheet, the color layer (or the color layer containing the pattern) can be printed on the light adjusting sheet, so as to form the light transmission part with color on the light adjusting sheet, the light in the light guide plate can be transmitted to the light-emitting key through the light adjusting sheet, so that the light transmitted by the light-emitting key can have the effect of corresponding color, and the light-emitting keyboard can present diversified color light visual effect due to the existence of the light transmission part printed with one (or more) color.

[0041] Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the utility model without departing from the spirit and essence of the utility model, but these corresponding changes and modifications should all belong to the protection scope of the claims attached to the utility model.

Claims

1. A lighted keyboard, comprising: The light-emitting keyboard comprises: a bottom plate; a key assembly disposed on the bottom plate and comprising a plurality of light-emitting keys, at least one of the plurality of light-emitting keys comprising: a key cap; and a lifting support mechanism connected to the key cap and the bottom plate to allow the key cap to move up and down relative to the bottom plate; a light guide plate disposed below the key assembly; a white light source illuminating the light guide plate; and a light-adjusting sheet disposed between the light guide plate and the key assembly, the light-adjusting sheet having a plurality of light-transmitting portions corresponding to the positions of the plurality of light-emitting keys, one of the light-transmitting portions being a light-transmitting portion with a complementary color corresponding to the lifting support mechanism with a color cast, and light in the light guide plate passing through the light-transmitting portion with the complementary color and the lifting support mechanism to generate white light incident on the key cap. The lifting support mechanism is a nylon lifting support mechanism, a glass fiber lifting support mechanism, or a post-consumer recycled plastic lifting support mechanism, and the light-transmitting portion with the complementary color is coated with a complementary color ink layer to have the complementary color.

2. The lighted keyboard of claim 1, wherein, The lifting support mechanism is a yellowish lifting support mechanism, and the light-transmitting portion with the complementary color is a blue light-transmitting portion.

3. The lighted keyboard of claim 2, wherein, The light-adjusting sheet is a plastic light-adjusting sheet with the complementary color.

4. The lighted keyboard of claim 1, wherein, The light-adjusting sheet further has a plurality of light-blocking portions disposed adjacent to the plurality of light-transmitting portions, the plurality of light-blocking portions being located between the plurality of light-transmitting portions and used to block light from illuminating gaps between adjacent key caps.

5. The lighted keyboard of claim 1, wherein, The light-emitting keyboard further comprises a thin film circuit board assembly disposed on the bottom plate.

6. The lighted keyboard of claim 1, wherein, The light-emitting key comprises:

7. A light-emitting button, characterized in that, a bottom plate; a key cap; a lifting support mechanism connected to the key cap and the bottom plate to allow the key cap to move up and down relative to the bottom plate; a light guide plate disposed below the key cap; and a light-adjusting sheet disposed between the light guide plate and the bottom plate, the light-adjusting sheet having a light-transmitting portion with a color, and light in the light guide plate passing through the light-adjusting sheet to be incident on the key cap. The light-adjusting sheet is a transparent film having ink with a color to form the light-transmitting portion with the color. The light-adjusting sheet further has a light-blocking portion disposed alternately with the light-transmitting portion with the color.

8. The lighted key of claim 7, wherein, The light-adjusting sheet is a plastic film with a color.

9. The lighted key of claim 7, wherein the light source is a light emitting diode. ​ 10. The lighted key of claim 7, wherein, ​

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