CN219123134U

CN219123134U - Keyboard structure of color backlight module

Info

Publication number: CN219123134U
Application number: CN202223105707.8U
Authority: CN
Inventors: 席锡峰; 饶国书; 吴明江
Original assignee: Chongqing Sanzhide Technology Co ltd
Current assignee: Chongqing Sanzhide Technology Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-02
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses a keyboard structure of a color backlight module, and belongs to the technical field of light guide plates. The light-shielding plate comprises a keyboard, a light-shielding plate, a light guide plate, a screen dot layer, a reflecting plate and an FPC from top to bottom, wherein the screen dot layer is arranged at the bottom of the light guide plate, a color ink layer is arranged at the bottom of the screen dot layer, a first black ink layer and a first white ink layer are sequentially coated at the top of the reflecting plate, a second black ink layer is coated at the top of the light-shielding plate, and a second white ink layer is coated at the bottom of the light-shielding plate. According to the utility model, the color ink light-transmitting layer is arranged on the light guide plate, the colors of different light-transmitting inks are selected according to the light colors required to be displayed, the white backlight source can irradiate the required light through the color ink light-transmitting layer of the light guide plate, meanwhile, the arranged black and white ink layers shield and reflect light, so that the light emission intensity is increased, the brightness loss caused by the color ink is reduced, and the structure does not need to use various color LED light sources, so that the LED light-emitting device has the advantages of cost saving and convenience in assembly.

Description

Keyboard structure of color backlight module

Technical Field

The utility model relates to a keyboard structure of a color backlight module, belonging to the technical field of light guide plates.

Background

For realizing the color light effect, the conventional keyboard backlight module is a white backlight module, and a plurality of mini color LEDs are added, so that the conventional backlight can only emit white halation, the mini LED backlight can also emit color halation, but the light-emitting mode is to emit color through the color LEDs, the structure of the backlight module increases the production cost, and a plurality of color LEDs also cause inconvenient assembly.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the color backlight module keyboard structure solves the problems that the backlight module structure of the traditional keyboard increases the production cost and a plurality of color LEDs cause inconvenient assembly.

The technical problems to be solved by the utility model are realized by adopting the following technical scheme:

the utility model provides a color backlight module keyboard structure, from the top down includes keyboard, anti-dazzling screen, light guide plate, site layer, reflector plate and FPC, site layer sets up in the bottom of light guide plate, the bottom of site layer is provided with color ink layer, the top of reflector plate has coated first black ink layer and first white ink layer in proper order, the top coating of anti-dazzling screen has the second black ink layer, and the bottom coating has the second white ink layer.

As a preferred example, the reflective sheet and the light shielding sheet are adhered to the light guide plate through the first glue layer.

As a preferred example, the light shielding sheet is adhered to the keyboard through a second water glue layer.

As a preferable example, the light shielding sheet is hollowed-out, and the light shielding sheet is matched with the key position of the keyboard.

As a preferred example, the bottom of the reflective sheet is also coated with the first black ink layer.

As a preferred example, the mesh point layer is integrally formed with the light guide plate.

The beneficial effects of the utility model are as follows: according to the utility model, the color ink light-transmitting layer is arranged on the light guide plate, the colors of different light-transmitting inks are selected according to the light colors required to be displayed, the white backlight source can irradiate the required light through the color ink light-transmitting layer of the light guide plate, meanwhile, the arranged black and white ink layers shield and reflect light, so that the light emission intensity is increased, the brightness loss caused by the color ink is reduced, and the structure does not need to use various color LED light sources, so that the LED light-emitting device has the advantages of cost saving and convenience in assembly.

Drawings

FIG. 1 is a schematic diagram of an explosive structure of the present utility model;

fig. 2 is a schematic view of a partial structure of a stacked diagram according to the present utility model.

In the figure: FPC1, reflector plate 2, first black ink layer 3, second white ink layer 4, first water glue layer 5, color ink layer 6, site layer 7, light guide plate 8, second white ink layer 9, anti-dazzling screen 10, second black ink layer 11, second water glue layer 12, keyboard 13.

Detailed Description

The utility model will be further described with reference to the following detailed drawings, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-2, the keyboard structure of the color backlight module comprises a keyboard 13, a light shielding sheet 10, a light guide plate 8, a dot layer 7, a reflecting sheet 2 and an FPC1 (flexible circuit board) from top to bottom, wherein the dot layer 7 is arranged at the bottom of the light guide plate 8, specifically, the dot layer 7 is directly formed on the light guide plate 8 by hot pressing (or cold pressing) through a mold, so that the color ink layers 6 arranged at the bottom of the dot layer 7 are uniformly distributed at the bottoms of the dot and the light guide plate 8, light transmission is more uniform, when the light guide plate combination mechanism is assembled, a white light source is uniformly arranged at one side end surface of the light guide plate 8, light enters the light guide plate 8 from the side surface, the dot layer 7 is clamped between the light guide plate 8 and the reflecting sheet 2, the top of the reflecting sheet 2 is sequentially coated with a first black ink layer 3 and a first white ink layer 4, the top of the light shielding sheet 10 is coated with a second black ink layer 11, and the bottom is coated with a second white ink layer 9, white ink can increase the intensity of reflected light, and black ink has a light blocking effect, and no disorder.

In one embodiment, the light shielding sheet 10 is transparent, the second black ink layer 11 and the second white ink layer 9 are respectively smeared on two sides of the light shielding sheet 10, the white inks on the reflecting sheet 2 and the light shielding sheet 10 correspond to each other, reflect and uniformly light, and the reflecting sheet 2 and the light shielding sheet 10 are bonded with the light guide plate 8 through the first water glue layer 5; in order to match the key position of the keyboard 13 and enable the keyboard to transmit the color corona, the light shielding sheet 10 is arranged in a hollowed-out mode corresponding to the key position and is adhered to the keyboard 13 through the second water glue layer 12, and the light shielding sheet 10 has the functions of firstly preventing dust from being directly attached to the light guide plate 8 and secondly fixing the light emitting position.

In another embodiment, the bottom of the reflective sheet 2 is also coated with the first black ink layer 3, and the first black ink layer 3 may be printed on the bottom of the reflective sheet 2 entirely, or may be printed only at the border, preferably at the border, so that the black ink can be used to block light no matter what color is adopted as the raw material of the reflective sheet 2, thereby further reducing light leakage and expanding the material selection range of the reflective sheet 2.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the spirit and scope of the utility model as hereinafter claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a color backlight module keyboard structure, from the top down includes keyboard (13), anti-dazzling screen (10), light guide plate (8), site layer (7), reflector plate (2) and FPC (1), site layer (7) set up in the bottom of light guide plate (8), its characterized in that: the bottom of site layer (7) is provided with colored printing ink layer (6), the top of reflector plate (2) has coated first black printing ink layer (3) and first white printing ink layer (4) in proper order, the top of anti-dazzling screen (10) has coated second black printing ink layer (11), and the bottom has coated second white printing ink layer (9).

2. The color backlight module keyboard structure of claim 1, wherein: the reflecting sheet (2) and the shading sheet (10) are adhered to the light guide plate (8) through the first water glue layer (5).

3. The color backlight module keyboard structure of claim 1, wherein: the shading sheet (10) is adhered to the keyboard (13) through a second water glue layer (12).

4. A color backlight module keyboard structure according to claim 3, wherein: the shading sheet (10) is hollowed out, and the shading sheet (10) is matched with the key position of the keyboard (13).

5. The color backlight module keyboard structure of claim 1, wherein: the bottom of the reflector plate (2) is also coated with a first black ink layer (3).

6. The color backlight module keyboard structure of claim 1, wherein: the lattice point layer (7) and the light guide plate (8) are integrally formed.