TWM625545U - Colorful backlight module of luminous keyboard - Google Patents

Abstract

A color backlight module for a luminous keyboard, comprising: a color light guide plate, a reflection sheet and a light source, the color light guide plate includes a light guide plate body and a colored light guide plate formed on the light guide plate body by digital inkjet The dot structure enables the light incident from the light source to the color light guide plate to be converted into color light with a specific color by the colored light guide dot structure and then output to a keyboard module of the luminous keyboard.

Description

Color Backlight Module for Luminous Keyboard

This creation is related to a light-emitting keyboard, especially to a color backlight module of the light-emitting keyboard.

The light-emitting keyboard is a keyboard with a backlight module under the keyboard module, and the backlight module provides light to make the keys or the surface of the keyboard glow. Traditional illuminated keyboards are generally white, or use colored LEDs to make them appear different colors. However, LEDs have limited color options, and some specific colors are difficult to obtain and require additional customized production. In addition, if the light-emitting keyboard can emit light of multiple colors at the same time, a large number of LEDs of different colors must be used, which increases the difficulty in the LED configuration of the backlight module, and makes it difficult to flexibly change the design.

Therefore, the purpose of the present invention is to provide a color backlight module for a light-emitting keyboard, which is easy to manufacture and easy to design flexibly.

The technical means adopted by the present invention to solve the problems of the prior art is to provide a color backlight module for a light-emitting keyboard, comprising: a color light guide plate disposed under a keyboard module of the light-emitting keyboard, the color light guide plate comprising: a light guide plate body and a colored light guide dot structure, the colored light guide dot structure is formed on the upper surface and/or the lower surface of the light guide plate body by means of digital inkjet; a reflective sheet is arranged on the color light guide plate down and facing the lower surface of the light guide plate body; and a light source, disposed corresponding to the color light guide plate, to provide light to the color light guide plate, wherein the light incident on the color light guide plate from the light source is passed through the color light guide plate The colored light guide dot structure is converted into colored light with a specific color and emitted to the keyboard module from the upper surface of the light guide plate body.

An embodiment of the present invention provides a color backlight module for a light-emitting keyboard, wherein a light-guiding microstructure is formed on the surface of the colored light-guiding dot structure to increase the light-guiding efficiency of the colored light-guiding dot structure.

In an embodiment of the present invention, a color backlight module for a light-emitting keyboard is provided, wherein the light guide microstructure is an embossed forming structure, and the embossed forming structure is formed on the colored light guide dots by embossing surface of the structure.

In an embodiment of the present invention, a color backlight module for a light-emitting keyboard is provided, wherein the colored light guide dot structure includes a total of two or more light guide dot blocks of different colors.

In an embodiment of the present invention, a color backlight module for a light-emitting keyboard is provided, wherein a plurality of the light-guiding dot blocks with different colors are mutually formed dot blocks in the same batch, and all the dot blocks are formed in the same batch. The dot blocks are formed on the upper surface or the lower surface of the light guide plate in the same digital inkjet process.

In an embodiment of the present invention, a color backlight module of a light-emitting keyboard is provided, wherein the light source is a white light-emitting diode.

In an embodiment of the present invention, a color backlight module for a light-emitting keyboard is provided, wherein the light source is a colored light-emitting diode, which provides light other than white light.

In an embodiment of the present invention, a color backlight module for a light-emitting keyboard is provided, wherein the keyboard module includes a support plate and a key cap, the support plate is disposed on the color light guide plate, and the key cap is disposed on the color light guide plate. On the support plate, the keycap has a keycap light-transmitting portion, the support plate has a support plate light-transmitting portion corresponding to the keycap light-transmitting portion, and the color light guide plate is arranged so that the emitted light has a specific The color light of the color corresponds to the light-transmitting portion of the keycap through the light-transmitting portion of the support plate.

In an embodiment of the present invention, a color backlight module of a light-emitting keyboard is provided, wherein the colored light guide dot structure of the color light guide plate is located directly below the light-transmitting portion of the support plate.

In an embodiment of the present invention, a color backlight module for a light-emitting keyboard is provided, and further includes a light shielding sheet disposed on the color light guide plate for shielding stray light.

In an embodiment of the present invention, a color backlight module of a light-emitting keyboard is provided, wherein the colored light-guiding dot structure is a photocurable ink.

In an embodiment of the present invention, a color backlight module of a light-emitting keyboard is provided, wherein the light-curable ink is UV-curable ink.

In an embodiment of the present invention, a color backlight module of a light-emitting keyboard is provided, wherein the photocurable ink is made of photocurable resin.

Through the technical means adopted in this creation, the color backlight module of the light-emitting keyboard can utilize the design of the colored light guide dot structure of the color light guide plate to provide color light with a specific color to the keyboard module without completely relying on The luminous color of the light source determines the luminous performance of the luminous keyboard. Thereby, the production and manufacture of the color backlight module of the light-emitting keyboard of the present invention is not limited by the selection of light sources and the number of configurations, and can be easily manufactured and easily designed flexibly. In addition, by forming the colored light-guiding dot structure by digital inkjet, the present invention can easily form two or more light-guiding dot blocks of different colors at one time, and does not need to be formed in multiple times, and has excellent production efficiency.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 5 . This description is not intended to limit the implementation of the present creation, but is one of the embodiments of the present creation.

As shown in FIGS. 1 to 3 , a color backlight module 100 for an illuminated keyboard according to an embodiment of the present invention includes: a color light guide plate 1 , a reflection sheet 2 and a light source 3 .

As shown in FIG. 1 to FIG. 3, the color light guide plate 1 is disposed under a keyboard module K of the light-emitting keyboard. The color light guide plate 1 includes a light guide plate body 10 and a colored light guide dot structure 11. The colored light guide dot structure 11 is formed on the upper surface 101 and/or the lower surface 102 of the light guide plate body 10 by means of digital inkjet.

In this embodiment, the colored light guide dot structure 11 is formed on the upper surface 101 of the light guide plate body 10 , but the present invention is not limited to this. In other embodiments, such as the color backlight module 100 a shown in FIG. 4 , the colored light guide dot structure 12 can also be formed on the lower surface 102 of the light guide plate body 10 . Alternatively, as in the color backlight module 100b shown in FIG. 5 , the colored light guide dot structure 11 and the colored light guide dot structure 12 may be formed on the upper surface 101 and the lower surface 102 of the light guide plate body 10 , respectively.

Specifically, the light guide plate body 10 enables the light to form total reflection inside the light guide plate body 10 , and the light guide dot structure (the colored light guide dot structures 11 and 12 ) provides light guide function, so that the light can be guided from the light guide. The inside of the light plate body 10 is emitted outward.

Again, digital inkjet is analog printing to traditional printing (ie, lithography, flexography, gravure, letterpress, etc.) Different printing methods. The biggest difference from analog printing is that digital inkjet printing does not need to change the printing plate, but can speed up the printing time and reduce the cost. In addition, with the computer graphics function, the output result of digital inkjet can be changed quickly, flexibly and at low cost, so that the layout of the colored light guide dot structure 11 on the color light guide plate 1 can be easily customized.

As shown in FIGS. 1 to 3 , the reflection sheet 2 is disposed under the color light guide plate 1 and faces the lower surface 102 of the light guide plate body 10 .

As shown in FIG. 3 , the light source 3 is disposed corresponding to the color light guide plate 1 to provide light L to the color light guide plate 1 , wherein the light L incident from the light source 3 to the color light guide plate 1 passes through the color light guide plate 1 . The colored light guide dot structure 11 is converted into colored light with a specific color and emitted to the keyboard module K from the upper surface 101 of the light guide plate body 10 .

Specifically, the light L incident on the color light guide plate 1 from the light source 3 will form a total reflection inside the light guide plate body 10 , and will be transmitted from the light guide plate through the light guide effect of the colored light guide dot structures 11 and 12 The body 10 emits outward and is converted into colored light with a specific color by the colored light-guiding dot structures 11 and 12 at the same time. Part of the light L guided by the colored light guide dot structure 11 located on the upper surface 101 of the light guide plate body 10 and the colored light guide dot structure 12 located on the lower surface 102 of the light guide plate body 10 directly exits to The keyboard module K is partially emitted to the keyboard module K from the upper surface 101 of the light guide plate body 10 by the reflection of the reflection sheet 2 .

As shown in FIG. 1 to FIG. 5, according to the color backlight modules 100, 100a, 100b of the light-emitting keyboard according to the embodiment of the present invention, a light guide microstructure is further formed on the surface of the colored light guide dot structures 11, 12, In order to increase the light-guiding efficiency of the colored light-guiding dot structures 11 and 12 .

Preferably, according to the color backlight modules 100, 100a, 100b of the light-emitting keyboard according to the embodiments of the present invention, the light guide microstructure is an embossed structure, and the embossed structure is formed on the The surface of the colored light guide dot structures 11 and 12 .

As shown in FIG. 2 , according to the color backlight module 100 of the light-emitting keyboard according to the embodiment of the present invention, the colored light guide dot structure 11 includes a total of two or more light guide dot blocks 111 of different colors. The light guide dot blocks 111 of two or more different colors can be arbitrarily distributed on the light guide plate body 10 , for example, distributed corresponding to the positions of different keys. Of course, the present invention is not limited to this, and the colored light guide dot structure 11 may also only include the light guide dot block 111 of a single color.

Preferably, according to the color backlight module 100 of the light-emitting keyboard according to the embodiment of the present invention, the plurality of the light guide dot blocks 111 having different colors are formed of the same batch of dot blocks, and all the dot blocks of the same batch are formed. The forming dot blocks are formed on the upper surface 101 or the lower surface 102 of the light guide plate body 10 together in the same digital inkjet process. Specifically, the traditional ink printing method requires multiple printings according to color to form dot blocks of multiple colors on the same surface. The digital inkjet method used in this creation can form multiple colors at one time. Thereby, the colored light guide dot structures 11 and 12 with a layout of multiple colors can be arbitrarily formed on the light guide plate body 10 quickly and flexibly.

As shown in FIGS. 3 to 5, according to the color backlight modules 100, 100a, 100b of the illuminated keyboard according to the embodiment of the present invention, the light source 3 can be a white light emitting diode, or the light source 3 can be colored Light-emitting diodes that provide light other than white light. Furthermore, although only one light source 3 is shown in the embodiment, the present invention is not limited to this. The light sources 3 can be plural, and the plural light sources 3 can be respectively light sources providing light of different colors.

As shown in FIGS. 3 to 5, the color backlight modules 100, 100a, 100b of the light-emitting keyboard according to the embodiments of the present invention, wherein the keyboard module K includes a support plate K1, a keycap K2 and a connecting mechanism K3 , the support plate K1 is arranged on the color light guide plate 1, the keycap K2 is arranged on the support plate K1 via the connecting mechanism K3, so that the keycap K2 can move up and down relative to the support plate K1, the The keycap K2 has a keycap light-transmitting portion K21, the support plate K1 has a support plate light-transmitting portion K11 corresponding to the keycap light-transmitting portion K21, and the color light guide plate 1 is arranged so that the emitted light has a specific color. The color light of the corresponding color is irradiated to the keycap light-transmitting portion K21 through the supporting plate light-transmitting portion K11 , thereby causing the keys to emit light.

Preferably, as shown in FIGS. 3 to 5 , in the color backlight modules 100 , 100 a , 100 b of the light-emitting keyboard according to the embodiments of the present invention, the colored light guide dot structures 11 , 100 b of the color light guide plate 1 12 is located directly below the light-transmitting portion K11 of the support plate, so as to more effectively guide the light L through the light-transmitting portion K11 of the support plate and irradiate the keycap light-transmitting portion K21 correspondingly.

As shown in FIGS. 1 to 5, the color backlight modules 100, 100a, 100b of the light-emitting keyboard according to the embodiments of the present invention further include a light shielding sheet 4 disposed on the color light guide plate 1 for use in Blocks stray light. Specifically, the light-shielding sheet 4 includes a light-shielding region 41 through which light cannot penetrate and a light-transmitting region 42 through which light can penetrate. Preferably, the position of the light-transmitting area 42 corresponds to the light-transmitting portion K11 of the support plate, so that the light emitted from the color light guide plate 1 is transmitted through the light-transmitting area 42 and thus passes through the light-transmitting portion K11 of the supporting plate. And correspondingly irradiate to the light-transmitting portion K21 of the keycap. The light-shielding area 41 is arranged outside the light-transmitting area 42 to shield stray light from other positions and angles to reduce interference.

In addition, according to the color backlight modules 100 , 100 a and 100 b of the light-emitting keyboard according to the embodiments of the present invention, the colored light-guiding dot structures 11 and 12 are preferably photocurable inks. Specifically, photocurable inks refer to inks that can be cured when irradiated with light of a specific wavelength and intensity. In a preferred embodiment of the present invention, the light-curable ink is UV-curable ink, and the light-curable ink is made of light-curable resin. In other words, the photo-curable ink is a UV-curable ink that is cured under the irradiation of ultraviolet light of a specific wavelength and intensity, and is also a photo-curable resin material. It is a liquid resin when it is not irradiated by ultraviolet light. is solidified. Compared with the traditional printing ink, the light-curable ink has better weather resistance and is not easy to fade, so that the color conversion performance of the colored light guide dot structures 11 and 12 of the color light guide plate 1 can be maintained for a long time.

With the above structure, the color backlight module 100 of the light-emitting keyboard of the present invention can utilize the design of the colored light guide dot structures 11 and 12 of the color light guide plate 1 to provide color light with a specific color to the keyboard module K, It is not necessary to completely depend on the luminous color of the light source 3 to determine the luminous performance of the luminous keyboard. Thereby, the color backlight module 100 of the light-emitting keyboard of the present invention is not limited by the selection of light sources and the number of configurations, and can be easily manufactured and flexibly designed. In addition, by forming the colored light-guiding dot structures 11 and 12 by means of digital inkjet, the present invention can facilitate the formation of two or more light-guiding dot blocks of different colors at one time, and does not need to be formed in multiple times. Productivity.

The above descriptions and descriptions are only the descriptions of the preferred embodiments of the present invention. Those with ordinary knowledge in this technology can make other modifications according to the scope of the patent application defined below and the above descriptions, but these modifications should still be It is in the creative spirit of this creation and within the scope of rights of this creation.

100: Color Backlight Module 100a: Color Backlight Module 100b: Color Backlight Module 1: Color light guide plate 10: Light guide plate body 101: Upper surface 102: Lower surface 11: Colored light guide dot structure 111: Light guide dot block 12: Colored light guide dot structure 2: Reflector 3: Light source 4: Shading sheet 41: Shading area 42: Translucent area K: Keyboard Module K1: support plate K11: Light-transmitting part of support plate K2: keycap K21: keycap translucent part K3: Linkage L: light

[FIG. 1] is a schematic cross-sectional view showing a color backlight module of a light-emitting keyboard according to an embodiment of the present invention; [Fig. 2] is an exploded schematic diagram showing the color backlight module of the light-emitting keyboard according to an embodiment of the present invention; [FIG. 3] is a schematic cross-sectional view showing a light-emitting keyboard provided with a color backlight module of the light-emitting keyboard according to an embodiment of the present invention; [FIG. 4] is a schematic cross-sectional view showing a light-emitting keyboard provided with a color backlight module of the light-emitting keyboard according to another embodiment of the present invention; [Fig. 5] is a schematic cross-sectional view showing a light-emitting keyboard provided with a color backlight module of the light-emitting keyboard according to another embodiment of the present invention.

1: Color light guide plate

10: Light guide plate body

101: Upper surface

11: Colored light guide dot structure

111: Light guide dot block

2: Reflector

4: Shading sheet

Claims (13)

A color backlight module for a luminous keyboard, comprising: A color light guide plate is disposed under a keyboard module of the light-emitting keyboard, the color light guide plate includes a light guide plate body and a colored light guide dot structure, and the colored light guide dot structure is formed in the digital inkjet method. The upper surface and/or the lower surface of the light guide plate body; a reflective sheet disposed under the color light guide plate and facing the lower surface of the light guide plate body; and a light source, disposed corresponding to the color light guide plate, to provide light to the color light guide plate, Wherein, the light incident on the color light guide plate from the light source is converted into color light with a specific color by the colored light guide dot structure and is emitted to the keyboard module from the upper surface of the light guide plate body. The color backlight module of a light-emitting keyboard according to claim 1, wherein a light-guiding microstructure is formed on the surface of the colored light-guiding dot structure to increase the light-guiding efficiency of the colored light-guiding dot structure. The color backlight module of a light-emitting keyboard according to claim 2, wherein the light guide microstructure is an embossed structure, and the embossed structure is formed on the surface of the colored light guide dot structure by embossing. The color backlight module for a light-emitting keyboard as claimed in claim 1, wherein the colored light-guiding dot structure comprises a total of two or more light-guiding dot blocks of different colors. The color backlight module of the light-emitting keyboard according to claim 4, wherein the plurality of the light guide dot blocks with different colors are mutually formed dot blocks in the same batch, and all the formed dot blocks in the same batch are It is formed on the upper surface or the lower surface of the light guide plate in the same digital inkjet process. The color backlight module of an illuminated keyboard according to claim 1, wherein the light source is a white light emitting diode. The color backlight module for a light-emitting keyboard according to claim 1, wherein the light source is a colored light-emitting diode, providing light other than white light. The color backlight module of a light-emitting keyboard according to claim 1, wherein the keyboard module comprises a support plate and a key cap, the support plate is arranged on the color light guide plate, and the key cap is arranged on the support plate , the keycap has a keycap light-transmitting portion, the support plate has a support plate light-transmitting portion corresponding to the keycap light-transmitting portion, and the color light guide plate is set so that the emitted light with a specific color The colored light is correspondingly irradiated to the keycap light-transmitting portion through the supporting plate light-transmitting portion. The color backlight module of a light-emitting keyboard according to claim 8, wherein the colored light guide dot structure of the color light guide plate is located directly below the light-transmitting portion of the support plate. The color backlight module of the light-emitting keyboard as claimed in claim 1, further comprises a light shielding sheet, disposed on the color light guide plate, for shielding stray light. The color backlight module of a light-emitting keyboard according to claim 1, wherein the colored light-guiding dot structure is a photocurable ink. The color backlight module of a light-emitting keyboard according to claim 11, wherein the light-curable ink is UV-curable ink. The color backlight module of a light-emitting keyboard according to claim 11 or 12, wherein the light-curable ink is made of light-curable resin.

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