TWI512775B - Transparent keycap and keycap manufacturing method thereof - Google Patents

Description

Light-transmitting keycap and its keycap manufacturing method

The invention relates to a light-transmissive keycap and a key cap manufacturing method thereof, in particular to a light-transmitting keycap and a keycap manufacturing method thereof for forming a light-transmitting pattern respectively at a position corresponding to an opaque paint layer and a position corresponding to a light-transmitting layer. method.

In terms of current personal computer usage habits, the keyboard is one of the indispensable input devices for entering text, symbols or numbers. Not only that, the consumer electronics products that are in contact with everyday life or the large-scale processing equipment used in the industry need to have a button structure as an input device for the user to perform character input operations.

However, in the current common keyboard keys on the market, the pattern on each keycap (such as text or symbols) is usually printed directly on the keycap, so the keycap can only present a monotonous color, such as black or Other single colors, etc., even if the design of the backlight device is arranged under the keycap to emit light to the keycap, only a monochromatic luminous effect can be generated in the pattern, so the conventional keycap often has a problem of lack of change in the color expression of the pattern. .

One of the objects of the present invention is to provide a light-transmissive keycap and a keycap manufacturing method thereof for forming a light-transmitting pattern on a position corresponding to an opaque paint layer and a position corresponding to the light-transmitting layer, thereby solving the above problems.

According to an embodiment, the transparent keycap of the present invention is applied to a keyboard, the keyboard includes a bottom plate and a backlight device, and the backlight device is disposed under the bottom plate for emitting light to the through The light key cap comprises a light transmissive key cap body, a first light transmissive layer, a second light transmissive layer, and an opaque paint layer. The first light transmissive layer is formed on the transparent keycap body. The second light transmissive layer is formed on the transparent keycap body and the first light transmissive layer. The opaque paint layer is formed on the second light transmissive layer, and a first light transmissive pattern is formed on the opaque paint layer corresponding to the first light transmissive layer to expose the second light transmissive layer. a portion of the first light transmissive layer, a second light transmissive pattern is formed at a position where the opaque paint layer does not correspond to the first light transmissive layer to reveal that the second light transmissive layer does not correspond to the first light transmissive layer portion. One of the first color of the first light transmissive layer, the second color of the second light transmissive layer, and one of the third color of the opaque paint layer are different from each other.

According to another embodiment, the method for manufacturing a keycap of the present invention comprises providing a light-transmitting keycap comprising a light-transmissive keycap body, and performing a printing process on the light-transmitting keycap body to form on the light-transmitting keycap body. a first light transmissive layer, a painting process of the light transmissive key cap body to form a second light transmissive layer on the transparent keycap main body and the first light transmissive layer, and the light transmissive key cap main body is a painting process for forming an opaque paint layer on the second light transmissive layer, and forming a first light transmissive pattern on the position of the opaque paint layer corresponding to the first light transmissive layer to reveal the The second light transmissive layer corresponds to a portion of the first light transmissive layer, and a second light transmissive pattern is formed at a position where the opaque paint layer does not correspond to the first light transmissive layer to expose the second light transmissive layer Does not correspond to one of the first light transmissive layers. The light-transmissive keycap is applied to a keyboard, the keyboard includes a bottom plate and a backlight device, and the backlight device is disposed under the bottom plate for emitting light to the light-transmitting keycap. One of the first color of the first light transmissive layer, the second color of the second light transmissive layer, and one of the third color of the opaque paint layer are different from each other.

According to another embodiment, the transparent keycap of the present invention comprises a light transmissive keycap body, a first light transmissive layer, a second light transmissive layer, and an opaque paint layer. The upper surface of the transparent keycap body has a first area and a second area, and the first area does not intersect with the second area. The first light transmissive layer covers the first region but does not extend to the second region. The second light transmissive layer covers the second region The domain extends above the first light transmissive layer. The opaque paint layer covers the second light transmissive layer, and the opaque paint layer has a first light transmissive pattern and a second light transmissive pattern. The first light transmissive pattern is formed in the first region, and the second light transmissive pattern is formed in the second region, and the first light transmissive pattern and the second light transmissive pattern both penetrate the opaque paint layer To expose the second light transmissive layer. The first light transmissive layer color and the second light transmissive layer color together affect the color of the first light transmissive pattern when a light source emits light from the light transmissive key cap body through the light transmissive key cap body. The two light transmissive layer colors affect the color of the second light transmissive pattern.

In summary, the present invention is formed by using a first light transmissive pattern at a position corresponding to the first light transmissive layer of the opaque paint layer and a second light transmissive pattern formed on the opaque paint layer not corresponding to the first light transmissive layer. The design of the position, in order to produce a light-transmissive keycap, can exhibit the effect of a two-color pattern, so that the light-transmissive keycap is more varied in overall color representation.

The advantages and spirit of the present invention will be further understood from the following embodiments and the accompanying drawings.

1, 1'‧‧‧Lighting Cap

3‧‧‧ keyboard

12‧‧‧Lighting keycap body

13‧‧‧First area

14‧‧‧First light transmission layer

15‧‧‧Second area

16‧‧‧Second light transmission layer

18‧‧‧Opacity paint layer

20‧‧‧Protective layer

22, 22'‧‧‧ first light transmission pattern

24‧‧‧second light transmission pattern

26‧‧‧floor

28, 28’‧‧‧ button

30‧‧‧Backlight

32‧‧‧ Lifting support device

34‧‧‧ boards

36‧‧‧Flexible parts

260‧‧‧second chute

262‧‧‧Second card slot

320‧‧‧First support

322‧‧‧second support

1200‧‧‧ first chute

1202‧‧‧First card slot

3200‧‧‧First sliding part

3202‧‧‧First pivotal

3220‧‧‧Second sliding part

3222‧‧‧Second pivotal

C‧‧‧Upper surface center

S10, S12, S14, S16, S18, S20, S30, S32, S34, S36, S38, S40‧‧

1 is a flow chart of a method of manufacturing a keycap according to an embodiment of the present invention.

Figure 2 is a schematic diagram of the process with the first figure.

3 is a flow chart of a method of manufacturing a keycap according to another embodiment of the present invention.

Figure 4 is a schematic diagram of the process with the third drawing.

Figure 5 is a schematic illustration of a keyboard in accordance with another embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view of the button in Fig. 5 taken along the line X-X.

Figure 7 is a cross-sectional view of a push button in accordance with another embodiment of the present invention.

Please refer to FIG. 1 and FIG. 2, and FIG. 1 is a diagram of an embodiment of the present invention. A flow chart of the method for manufacturing the key cap, and FIG. 2 is a schematic view of the process with the first drawing. For convenience of explanation, FIGS. 2(A) to (F) are presented in a cross-sectional view and a top view.

First, step S10 is performed to provide the light-transmitting keycap 1, as shown in Fig. 2(A). In this embodiment, the light-transmitting keycap 1 includes a light-transmitting keycap body 12, a first light-transmitting layer 14, a second light-transmitting layer 16, an opaque paint layer 18, and a protective layer 20, wherein the first light-transmitting layer The color of the layer 14, the second light transmissive layer 16, and the opaque paint layer 18 are different from each other to achieve the purpose that the light-transmitting keycap 1 can exhibit different colors, and as to which color is selected, the end light-transmitting keycap 1 depending on the actual application.

Then, steps S12 and S14 are performed to perform a printing process on the transparent keycap main body 12 to form a first light transmissive layer 14 (such as a square, but not limited thereto) on the transparent keycap main body 12, and to transmit light. The key cap body 12 performs a painting process to form the second light transmissive layer 16 on the transparent keycap main body 12 and the first light transmissive layer 14, as shown in FIG. 2(B) and FIG. 2(C), wherein The light key cap body 12 is preferably made of a transparent material, so that it is necessary to form the second light transmissive layer 16 on the transparent keycap main body 12 to produce a diffusing film concentrating effect, thereby preventing the light from passing through. When the light key cap main body 12 is scattered, the light-emitting effect of the light-transmitting keycap 1 occurs.

Then, step S16 is performed to perform a painting process on the transparent keycap main body 12 to form the opaque paint layer 18 on the second light transmissive layer 16, as shown in FIG. 2(D), thereby opaque paint layer 18 can cover the periphery of the transparent keycap body 12 to prevent light leakage.

Finally, steps S18 and S20 are performed to form a first light transmissive pattern 22 at a position corresponding to the first light transmissive layer 14 of the opaque paint layer 18 to expose a portion of the second light transmissive layer 16 corresponding to the first light transmissive layer 14. And forming a second light transmissive pattern 24 at a position where the opaque paint layer 18 does not correspond to the first light transmissive layer 14 to expose a portion of the second light transmissive layer 16 that does not correspond to the first light transmissive layer 14, such as the second As shown in FIG. (E), in more detail, the laser engraving process can be performed on the light-transmitting keycap 1 by using a laser. The first light transmissive pattern 22 and the second light transmissive pattern 24 are respectively formed on the opaque paint layer 18, wherein the first light transmissive pattern 22 (such as the phonetic symbol 第 shown in FIG. 2) and the second transparent pattern 24 ( The English letter A) shown in Figure 2 is a text or symbol that can be recognized by the user.

In a practical application, the protective layer 20 may be formed on the opaque paint layer 18 and fill the first light-transmissive pattern 22 and the second light-transmitting pattern 24, and the protective layer 20 has a flat upper surface, as shown in FIG. 2 (F) ) shown. In this embodiment, the protective layer 20 is preferably formed on the opaque paint layer 18 in an ultraviolet curing manner, thereby preventing the first light transmissive pattern 22 and the second light transmissive pattern 24 on the opaque paint layer 18 from being It is worn out under prolonged use.

It should be noted that, in this embodiment, as shown in FIG. 2(A) and FIG. 2(F), the upper surface of the transparent keycap main body 12 has a first region 13 and a second region 15, and the first region 13 does not intersect with the second region 15, the first light transmissive layer 14 covers the first region 13, but does not extend to the second region 15, and the second light transmissive layer 16 covers the second region 15 and extends to the first through Above the light layer 14, wherein the area of the second area 15 is larger than the area of the first area 13, the second light transmission pattern 24 is larger than the first light transmission pattern 22, and the center C of the upper surface of the transparent keycap body 12 is located The distance between the second light-transmissive pattern 24 and the center C of the upper surface of the light-transmitting keycap main body 12 is smaller than the distance between the first light-transmitting pattern 22 and the center C of the upper surface of the light-transmitting keycap main body 12. In addition, as shown in FIG. 2F, the first light transmissive pattern 22 is formed in the first region 13, the second light transmissive pattern 24 is formed in the second region 15, and the first transparent pattern 22 and the second transparent pattern 22 are formed. The light pattern 24 only penetrates the opaque paint layer 18 to expose the second light-transmissive layer 16, whereby when the light source emits light from the light-transmitting keycap main body 12 through the light-transmitting keycap main body 12, the first through The color of the light layer 14 and the color of the second light transmissive layer 16 together affect the color of the first light transmissive pattern 22, and the color of the second light transmissive layer 16 affects the color of the second light transmissive pattern 24.

Through the above design, if the illuminated keyboard with the light-transmitting keycap 1 is not turned on, the backlight is not turned on. In the case of the light source of the device, since no light penetrates the first light transmissive layer 14 and the second light transmissive layer 16, the user can see the first light transmissive pattern 22 and the second on the transparent keycap 1 The light transmissive patterns 24 each exhibit the color of the second light transmissive layer 16. On the other hand, if the light source provided with the light-transmitting keycap 1 turns on the light source of the backlight device to provide light, the light penetrates through the second light-transmitting layer exposed through the first light-transmitting pattern 22, respectively. The portion corresponding to the first light transmissive layer 14 and the second light transmissive layer 16 exposed through the second light transmissive pattern 24 do not correspond to the portion of the first light transmissive layer 14, so that the user can see through The first light transmissive pattern 22 on the light key cap 1 exhibits a color of the color of the first light transmissive layer 14 mixed with the color of the second light transmissive layer 16 and a second light transmissive pattern 24 on the transparent keycap 1 The color of the two light transmissive layers 14 produces an effect that the light transmissive keycap 1 exhibits a two-color pattern. It should be noted that, if the second light transmissive layer 16 is designed in a white color, the color of the first light transmissive layer 14 and the color of the second light transmissive layer 16 are mixed. It will be the same color as the first light transmissive layer 14.

The light-transmissive keycap of the present invention is not limited to the above embodiment in the pattern forming design. Please refer to FIG. 3 and FIG. 4, and FIG. 3 is a flowchart of a method for manufacturing a key cap according to another embodiment of the present invention. Figure 4 is a schematic diagram of the process with the third figure. The main difference between this embodiment (as shown in Fig. 4) and the above embodiment (as shown in Fig. 2) is the manner in which the first light transmissive pattern is formed, and more specifically, as shown in Fig. 4(E). Forming a first light transmissive pattern 22 at a position corresponding to the first light transmissive layer 14 of the opaque paint layer 18 and the second light transmissive layer 16 (eg, using a laser engraving process, etc.) to expose the first light transmissive layer 14 Thereby, the user can see that the first light transmissive pattern 22 and the second light transmissive pattern 24 on the transparent keycap 1' respectively present the colors of the first light transmissive layer 14 and the second light transmissive layer 16, thereby The effect that the light-transmitting keycap 1' exhibits a two-color pattern is produced. It should be noted that steps S30, S32, S34, S36, and S40 in FIG. 3 are substantially the same as S10, S12, S14, S16, and S20 in FIG. 1, and are shown in FIG. 4 and FIG. The components of the same reference numerals have substantially the same function and will not be described again.

Please refer to FIG. 5, which is a schematic diagram of a keyboard 3 according to another embodiment of the present invention. As shown in FIG. 5, the keyboard 3 includes a bottom plate 26 and a plurality of buttons 28. The button 28 is disposed on the bottom plate 26 for the user to press, thereby performing the function desired by the user.

Please refer to FIG. 6, which is a cross-sectional view of the button 28 in FIG. 5 along the X-X section line. As shown in FIG. 6, the keyboard 3 further includes a backlight device 30. The button 28 includes a transparent keycap 1, a lifting support device 32, a circuit board 34, and an elastic member 36. The transparent keycap 1 includes a transparent keycap body 12, The first light transmissive layer 14, the second light transmissive layer 16, the opaque paint layer 18, and the protective layer 20. The backlight device 30 is disposed under the bottom plate 26 for emitting light to the transparent keycap body 12. The lifting support device 32 and the elastic member 36 are disposed between the transparent keycap main body 12 and the bottom plate 26, and the circuit board 34 is disposed on the bottom plate 26. In practical applications, the circuit board 34 has a switch 340 corresponding to the button 28, such as a membrane switch or other trigger switch. The elastic member 36 may be a rubber dome, but is not limited thereto. The elastic member 36 serves as a source of elasticity required when the light-transmitting keycap 1 moves up and down with respect to the bottom plate 26. When the light-transmitting keycap 1 is pressed, the elastic member 36 triggers the switch 340 on the circuit board 34 to perform the function that the user desires to input.

As shown in FIG. 6, the transparent keycap body 12 has a first sliding slot 1200 and a first locking slot 1202. The bottom plate 26 has a second sliding slot 260 and a second locking slot 262. The lifting support device 32 includes a first supporting member. 320 and a second support member 322. The first support member 320 has a first sliding portion 3200 and a first pivoting portion 3202. The second support member 322 has a second sliding portion 3220 and a second pivoting portion 3222. The first support member 320 is pivotally connected to the second support member 322. The first sliding portion 3200 is slidably disposed in the corresponding first sliding slot 100, and the first pivoting portion 3202 is rotatably pivotally connected to the corresponding second slot 262. The second sliding portion 3220 is slidably disposed in the corresponding second sliding slot 260 , and the second pivoting portion 3222 is rotatably pivoted in the corresponding first locking slot 1202 . Thereby, when the light-transmitting keycap 1 is pressed, the light-transmitting keycap 1 is vertically moved in the direction of the bottom plate 26 with the lifting support device 32. It should be noted that the machine using the lifting support device used for the keyboard 3 of the light-transmitting keycap 1 The design system is not limited to the above-mentioned scissor foot design, and it can also be modified by other common application on the keyboard, such as magnetic lifting design.

The first light transmissive layer 14 is formed on the transparent keycap body 12, the second light transmissive layer 16 is formed on the transparent keycap main body 12 and the first light transmissive layer 14, and the opaque paint layer 18 is formed on the second translucent layer. The light-transmissive layer 22 is formed at a position corresponding to the first light-transmissive layer 14 of the opaque paint layer 18 to expose a portion of the second light-transmissive layer 16 corresponding to the first light-transmitting layer 14 The light pattern 24 is formed at a position where the opaque paint layer 18 does not correspond to the first light-transmissive layer 14 to expose a portion of the second light-transmissive layer 16 that does not correspond to the first light-transmissive layer 14, wherein the first light-transmitting pattern 22 ( The phonetic symbol ㄇ as shown in FIG. 5 and the second light transmission pattern 24 (such as the letter A shown in FIG. 5) are characters or symbols that can be recognized by the user. The protective layer 20 is formed on the opaque paint layer 18 to prevent the first light transmissive pattern 22 and the second light transmissive pattern 24 on the opaque paint layer 18 from being worn under prolonged use.

Through the above design, if the light source of the backlight device 30 is not turned on in the keyboard 3, since no light penetrates the first light transmissive layer 14 and the second light transmissive layer 16, the user can see the light transmissive key cap. The first light transmissive pattern 22 and the second light transmissive pattern 24 on the first light show the color of the second light transmissive layer 16. On the other hand, if the keyboard 1 turns on the light source of the backlight device 30 to provide light, the second light transmissive layer 16 corresponding to the first light transmissive layer 14 is formed by the light passing through the first light transmissive pattern 22 . The portion of the second light transmissive layer 16 that is exposed through the second light transmissive pattern 24 does not correspond to the portion of the first light transmissive layer 14, so that the user can see the first light transmission on the transparent keycap 1 The pattern 22 exhibits a color of the color of the first light transmissive layer 14 mixed with the color of the second light transmissive layer 16, and the second light transmissive pattern 22 viewed on the transparent keycap 1 exhibits the color of the second light transmissive layer 16. , thereby producing the effect that the light-transmitting keycap 1 exhibits a two-color pattern.

It should be noted that the light-transmitting keycap 1 can be manufactured by the manufacturing method in FIG. In other words, the light-transmitting keycap 1 can utilize steps S10, S12, S14, S16, and S18 in FIG. 1 and The S20 forms a first light transmissive layer 14, a second light transmissive layer 16, an opaque paint layer 18, a first light transmissive pattern 22, and a second light transmissive pattern 24 on the transparent keycap body 12. The related manufacturing principles are as described above and will not be described here.

Please refer to Fig. 7, which is a cross-sectional view of a button 28' according to another embodiment of the present invention. The main difference between the button 28' and the button 28 is the manner in which the first light transmissive pattern is formed. More specifically, as shown in FIG. 7, the opaque paint layer 18 and the second light transmissive layer 16 correspond to the first through. A first light transmissive pattern 22' is formed at a position of the light layer 14 (such as by a laser engraving process, etc.) to expose the first light transmissive layer 14, whereby the user can view the light transmissive keycap 1'. The first light transmissive pattern 22 ′ and the second light transmissive pattern 24 respectively present the colors of the first light transmissive layer 14 and the second light transmissive layer 16 , thereby producing the effect that the light transmissive key cap 1 ′ exhibits a two-color pattern. It should be noted that the light-transmitting keycap 1' can be sequentially formed on the transparent keycap main body 12 by using steps S30, S32, S34, S36, S38, and S40 in FIG. 3, and the first light-transmitting pattern 22' is sequentially formed. And a second light transmissive pattern 24. The related manufacturing principle is as described above, and the components of the same reference numerals as those shown in FIG. 7 and FIG. 6 have the same principle of operation, and will not be described again.

Compared with the prior art, the present invention utilizes a first light transmissive pattern formed at a position corresponding to the first light transmissive layer of the opaque paint layer and a second light transmissive pattern formed on the opaque paint layer that does not correspond to the first light transmissive layer. The design of the position of the layer, in order to produce a light-transmissive keycap, can exhibit the effect of a two-color pattern, so that the light-transmissive keycap is more varied in overall color representation.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

1‧‧‧Lighting keycap

12‧‧‧Lighting keycap body

13‧‧‧First area

14‧‧‧First light transmission layer

15‧‧‧Second area

16‧‧‧Second light transmission layer

18‧‧‧Opacity paint layer

20‧‧‧Protective layer

22‧‧‧First light transmission pattern

24‧‧‧second light transmission pattern

C‧‧‧Upper surface center

Claims (12)

A light-transmitting keycap is applied to a keyboard, the keyboard includes a bottom plate and a backlight device, and the backlight device is disposed under the bottom plate for emitting light to the transparent keycap. The transparent keycap comprises: a light transmissive key cap body; a first light transmissive layer formed on the light transmissive key cap body; a second light transmissive layer formed on the light transmissive key cap body and the first light transmissive layer; And an opaque paint layer formed on the second light transmissive layer, a first light transmissive pattern is formed on the position of the opaque paint layer corresponding to the first light transmissive layer to reveal the second translucent layer The light layer corresponds to a portion of the first light transmissive layer, and a second light transmissive pattern is formed at a position where the opaque paint layer does not correspond to the first light transmissive layer to reveal that the second light transmissive layer does not correspond to the first translucent layer. a portion of the light layer; wherein the first color of the first light transmissive layer, the second color of the second light transmissive layer, and the third color of the opaque paint layer are different from each other. The light-transmitting keycap of claim 1, further comprising: a protective layer formed on the opaque paint layer and filling the first light-transmitting pattern and the second light-transmitting pattern, the protective layer Has a flat upper surface. The light transmissive key cap of claim 1, wherein the first light transmissive pattern is formed at a position corresponding to the first light transmissive layer of the opaque paint layer to expose the second light transmissive layer. The portion of the light transmissive layer, when the backlight emits light, sequentially penetrates the first light transmissive layer and the second light transmissive layer corresponds to the portion of the first light transmissive layer and emits light to the second light transmissive layer When the portion of the first light transmissive layer is not corresponding, the first light transmissive pattern exhibits a fourth color mixed with the first color and the second color, and the second light transmissive pattern exhibits the second color. The backlight device The first light transmissive pattern and the second light transmissive pattern exhibit the second color when no light is emitted. The light-transmitting keycap of claim 3, wherein the second color is white, and the fourth color is the same color as the first color. The light transmissive key cap of claim 1, wherein the first light transmissive pattern is formed at a position corresponding to the first light transmissive layer and the second light transmissive layer to expose the first a portion of the light transmissive layer, the first light transmissive pattern when the backlight device emits light to the portion of the first light transmissive layer and emits light to the portion of the second light transmissive layer that does not correspond to the first light transmissive layer The first color is presented and the second light transmissive pattern presents the second color. A key cap manufacturing method includes: providing a light-transmitting keycap comprising a light-transmitting keycap body and applying to a keyboard, the keyboard comprising a bottom plate and a backlight device, wherein the backlight device is disposed on the keyboard The bottom plate is configured to emit light to the transparent keycap; a printing process is performed on the transparent keycap main body to form a first light transmissive layer on the transparent keycap main body; Performing a painting process on the main body to form a second light transmissive layer on the transparent keycap main body and the first light transmissive layer; and performing a painting process on the transparent keycap main body to the second light transmissive layer Forming an opaque paint layer thereon; forming a first light transmissive pattern on the position of the opaque paint layer corresponding to the first light transmissive layer to expose the second light transmissive layer corresponding to the first light transmissive layer And forming a second light transmissive pattern on the portion of the opaque paint layer that does not correspond to the first light transmissive layer to reveal that the second light transmissive layer does not correspond to a portion of the first light transmissive layer; One of the first light transmissive layer and one of the second light transmissive layer Color, and The third color of one of the opaque paint layers is different from each other. The method for manufacturing a key cap according to claim 6, further comprising: forming a protective layer on the opaque paint layer and filling the first light-transmitting pattern and the second light-transmitting pattern, the protective layer having Flat upper surface. The method of manufacturing a key cap according to claim 6, wherein the first light transmissive pattern is formed at a position corresponding to the first light transmissive layer and the second light transmissive layer to expose the first a light transmissive layer, the first light transmissive pattern exhibiting the first color when the backlight device emits light to the first light transmissive layer and emits light to the portion of the second light transmissive layer that does not correspond to the first light transmissive layer And the second light transmissive pattern presents the second color. The method of manufacturing a key cap according to claim 6, wherein the first light transmissive pattern is formed at a position corresponding to the first light transmissive layer of the opaque paint layer to expose the second light transmissive layer. The portion of the light transmissive layer, when the backlight emits light, sequentially penetrates the first light transmissive layer and the second light transmissive layer corresponds to the portion of the first light transmissive layer and emits light to the second light transmissive layer When the portion of the first light transmissive layer is not corresponding, the first light transmissive pattern exhibits a fourth color mixed with the first color and the second color, and the second light transmissive pattern exhibits the second color. When the backlight device does not emit light, the first light transmitting pattern and the second light transmitting pattern exhibit the second color. A light-transmissive keycap includes: a light-transmissive keycap body having a first area and a second area on the upper surface of the transparent keycap body, the first area and the second area not intersecting a first light transmissive layer covering the first region but not extending to the second region; a second light transmissive layer covering the second region and extending above the first light transmissive layer; a light spray coating covering the second light transmissive layer, the opaque paint layer having a first light transmission a pattern and a second light transmissive pattern; wherein the first light transmissive pattern is formed in the first region, the second light transmissive pattern is formed in the second region, the first light transmissive pattern and the second light transmissive pattern The pattern only extends through the opaque paint layer to expose the second light transmissive layer; when a light source emits light from the light transmissive key cap body through the transparent keycap body, the first light transmissive layer color The color of the first light transmissive layer is affected by the color of the second light transmissive layer, and the color of the second light transmissive layer affects the color of the second light transmissive pattern. The light-transmitting keycap of claim 10, wherein one of the second regions has an area larger than an area of the first region, and the second light-transmitting pattern is larger than the first light-transmitting pattern. The light-transmitting keycap of claim 10, wherein a center of an upper surface of the transparent keycap body is located in the second area, the second light-transmitting pattern and the center of the upper surface of the transparent keycap body One of the distances is less than a distance between the first light transmissive pattern and the center of the upper surface of the light transmissive keycap body.