CN204424131U - The lattice luminous keyboard of film - Google Patents

Abstract

The utility model provides a film dot matrix luminescent keyboard. The film dot matrix luminescent keyboard includes a button layer, a conductive film layer, a PCB control board and a keyboard bottom cover arranged in sequence from top to bottom. The button layer includes a number of button structures arranged in an array, and the PCB control board is provided with The plurality of button structures correspond to light guide holes one by one, and the light guide holes are arranged directly below the corresponding button structures, each of the light guide holes is provided with an LED backlight, and each The LED backlights are respectively electrically connected to the PCB control board, and each of the LED backlights is sandwiched between the PCB control board and the keyboard bottom cover. The utility model provides a thin-film dot-matrix light-emitting keyboard capable of realizing the uniform backlight control function of a single key.

Description

Film dot matrix luminous keyboard

technical field

The utility model relates to the technical field of keyboards, in particular to a film dot matrix luminescent keyboard.

Background technique

We know that the film luminous keyboards currently on the market generally only have the function of the overall backlight of the keyboard or a rough partition backlight display function. The board is printed with luminous paint on each position that needs to be illuminated. When the LED light hits the luminous paint on the transparent plastic board, the corresponding position will light up. It can be seen that the traditional film luminous keyboard cannot accurately locate the position that should be illuminated. At the same time, because the LED is projected on the side edge of the transparent light-emitting board, due to the scattering effect of light, the light of each LED is emitted at an angle, and the position close to the LED cannot be covered, and the light at a far position crosses, so that the brightness of the backlight and the color effect cannot be precisely controlled.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art, and provide a thin-film dot-matrix light-emitting keyboard capable of realizing the uniform backlight control function of a single key.

The utility model is achieved in that:

A thin-film dot-matrix light-emitting keyboard, the thin-film dot-matrix light-emitting keyboard includes a button layer, a conductive film layer, a PCB control board, and a keyboard bottom cover arranged sequentially from top to bottom, and the button layer includes several button structures arranged in an array, The PCB control board is provided with light guide holes corresponding to the plurality of button structures one by one, and the light guide holes are arranged directly below the corresponding button structures, and each of the light guide holes is provided with There is an LED backlight, and each of the LED backlights is electrically connected to the PCB control board, and each of the LED backlights is sandwiched between the PCB control board and the keyboard bottom cover.

As an improvement of the film dot matrix luminescent keyboard, each key structure includes a keycap, a key groove body and transparent silica gel, the transparent silica gel is a round cap-shaped structure, and the transparent silica gel is placed in the key groove body , the keycap cover is arranged above the key groove body, and the bottom end of the keycap is in contact with the top end of the transparent silica gel.

As an improvement of the film dot-matrix luminous keyboard, the side wall of the key groove body is provided with a light-transmitting hole, and the light-transmitting hole is located above the side of the transparent silica gel.

As an improvement of the above thin-film dot-matrix luminescent keyboard, the conductive film layer includes an upper layer of conductive film, a conductive film spacer and a bottom layer of conductive film arranged in sequence from top to bottom, and the conductive film spacer is provided with the plurality of buttons. Structures correspond to openings one by one.

As an improvement of the thin-film dot-matrix light-emitting keyboard, the bottom layer of the conductive film is a thickened and hardened transparent sheet structure.

As an improvement of the thin-film dot-matrix light-emitting keyboard, a transparent film layer is interposed between the conductive film layer and the PCB control board.

As an improvement of the above-mentioned thin-film dot-matrix luminous keyboard, a light-guiding column is provided on the light-emitting surface of each of the LED backlights, and the light-guiding column is sleeved in the light-guiding hole, and the thickness of the PCB control board is greater than that of the The height of the light guide column.

As an improvement of the above-mentioned film dot matrix luminous keyboard, the LED backlights are LED monochrome lights of various colors or RGB full-color lights.

The beneficial effects of the utility model are: the thin film dot matrix light-emitting keyboard provided by the utility model, its PCB control board is provided with light guide holes corresponding to a plurality of button structures one by one, and the light guide holes are arranged in the corresponding button structures. Directly below, each light guide hole is provided with an LED backlight, and each LED backlight is electrically connected to the PCB control board. It can be seen that each key structure of the thin film dot matrix luminescent keyboard is correspondingly provided with an LED backlight independently controlled by the PCB control board, and the LED backlight is arranged directly below the corresponding key structure, therefore, the thin film The dot-matrix luminous keyboard can realize the single-key uniform backlight control function.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is a partial structural schematic diagram of a preferred embodiment of the thin-film dot-matrix light-emitting keyboard of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in FIG. 1 , this embodiment provides a thin-film dot-matrix light-emitting keyboard 1 . The thin-film dot-matrix luminescent keyboard 1 includes a button layer 11 , a conductive film layer 12 , a PCB control board 13 and a keyboard bottom cover 14 arranged in sequence from top to bottom.

Specifically, the button layer 11 includes a plurality of button structures 111 arranged in an array, and the PCB control board 13 is provided with light guide holes 131 corresponding to the plurality of button structures 111 one by one, and the light guide holes 131 are arranged on Right below the button structure 111 corresponding thereto, an LED backlight 15 is provided at each of the light guide holes 131, and each of the LED backlights 15 is electrically connected to the PCB control board 13 respectively, Each of the LED backlights 15 is interposed between the PCB control board 13 and the keyboard bottom cover 14 .

In this embodiment, as shown in Figure 1, each of the key structures 111 includes a key cap 1111, a key groove body 1112 and a transparent silicone 1113, the transparent silicone 1113 is a round cap-shaped structure, and the transparent silicone 1113 The key cap 1113 is placed in the key groove body 1112 , the key cap 1113 is covered above the key groove body 1112 , and the bottom end of the key cap 1111 is in contact with the top end of the transparent silica gel 1113 . Preferably, the side wall of the key groove body 1112 is provided with a light-transmitting hole (not shown), and the light-transmitting hole is located above the side of the transparent silica gel 1113. Through such a structural setting, the needs of individual products can be met. The requirement of light around the key makes the light transmission effect of the LED backlight 15 better. The conductive film layer 12 includes a conductive film upper layer 121, a conductive film spacer 122, and a conductive film bottom layer 123 arranged sequentially from top to bottom, and the conductive film spacer 122 is provided with a one-to-one correspondence with the plurality of button structures 111. The opening 1221 of. In order to make each of the button structures 111 smoother and better in contact when pressed, the conductive film bottom layer 123 can adopt a thickened and hardened transparent sheet structure, and can also be connected between the conductive film layer 12 and the PCB control board. A transparent film layer (not shown) is interposed between 13 . The light-emitting surface of each LED backlight 15 is provided with a light guide column (not shown in the figure), and the light guide column is sleeved in the light guide hole 131, and the thickness of the PCB control board 13 is greater than that of the guide tube. The height of the light column is to realize the flat placement of the conductive film layer 12 on the PCB control board 13 and ensure the normal operation of the keyboard keys. The LED backlight 15 is a LED monochrome lamp or RGB full-color lamp of various colors, by selecting LED monochrome lamps or RGB full-color lamps of different colors as the LED backlight 15, and then through the PCB control board 13, we can realize single-color, double-color, double-color mixed with three-color, and colorful backlight control for a single button or partition.

In the film dot matrix luminous keyboard provided in this embodiment, its PCB control board is provided with light guide holes corresponding to a plurality of button structures one by one, and the light guide holes are arranged directly below the corresponding button structures, and each light guide hole An LED backlight is provided at the position, and each LED backlight is electrically connected with the PCB control board respectively. It can be seen that each key structure of the thin film dot matrix luminescent keyboard is correspondingly provided with an LED backlight independently controlled by the PCB control board, and the LED backlight is arranged directly below the corresponding key structure, therefore, the thin film The dot-matrix luminous keyboard can realize the single-key uniform backlight control function.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (8)

1. A film dot matrix luminescent keyboard, characterized in that, the film dot matrix luminous keyboard comprises a button layer, a conductive film layer, a PCB control panel and a keyboard bottom cover arranged successively from top to bottom, and the button layer includes several The button structure arranged in an array, the PCB control board is provided with light guide holes corresponding to the plurality of button structures one by one, and the light guide holes are arranged directly below the corresponding button structures, each An LED backlight is provided at the light guide hole, and each of the LED backlights is electrically connected to the PCB control board, and each of the LED backlights is sandwiched between the PCB control board and the keyboard between the caseback. 2. The film dot matrix luminous keyboard as claimed in claim 1, wherein each said key structure comprises a keycap, a key groove body and transparent silica gel, and said transparent silica gel is a round cap-shaped structure, and said transparent silica gel The silica gel is placed in the key groove body, the key cap cover is arranged above the key groove body, and the bottom end of the key cap is in contact with the top end of the transparent silica gel. 3. The thin-film dot-matrix luminescent keyboard according to claim 2, wherein the side wall of the key groove body is provided with a light-transmitting hole, and the light-transmitting hole is located above the side of the transparent silica gel. 4. The film dot matrix luminous keyboard as claimed in claim 1, wherein the conductive film layer comprises a conductive film upper layer, a conductive film interlayer and a conductive film bottom layer arranged sequentially from top to bottom, and the conductive film The interlayer is provided with openings corresponding to the plurality of button structures one by one. 5. The film dot matrix luminescent keyboard according to claim 4, wherein the bottom layer of the conductive film is a thickened and hardened transparent sheet structure. 6 . The film dot matrix luminous keyboard according to claim 4 , wherein a transparent film layer is interposed between the conductive film layer and the PCB control board. 6 . 7. The thin-film dot-matrix luminescent keyboard according to claim 1, wherein a light-guiding column is provided on the light-emitting surface of each of the LED backlights, and the light-guiding column is sleeved in the light-guiding hole, and the The thickness of the PCB control board is greater than the height of the light guide column. 8. The film dot matrix luminescent keyboard according to any one of claims 1-7, wherein the LED backlights are LED monochrome lights of various colors or RGB full-color lights.