CN216084689U - Keyboard backlight module - Google Patents

Abstract

The utility model relates to the technical field of keyboard equipment, in particular to a keyboard backlight module, which comprises a backlight module main body, wherein the backlight module main body comprises a light emitting sheet, a structural film and a light halo sheet, the structural film is covered on the front surface of the light emitting sheet, the light halo sheet is attached to the front surface of the structural film, the front surface of the light emitting sheet is connected with a light emitting source body, the surface of the structural film is provided with an opening with a wide upper part and a narrow lower part, the light emitting source body is embedded in the opening, and the top of the backlight module main body is provided with a key cap body. According to the keyboard, the single key cap is controlled by the IC of the single light emitting source body at the bottom of the key cap body, so that the single key cap is independent in optics, multi-color control is achieved, the artistic aesthetic feeling is better, the light guide layer on the surface of the opening can absorb light energy emitted from the light emitting source body, light is guided to the whole key cap/keyboard area, and the problems that an existing keyboard mechanism is blocked and the optics of the far end of the keyboard cannot be balanced are solved.

Description

Keyboard backlight module

Technical Field

The utility model relates to the technical field of keyboard equipment, in particular to a keyboard backlight module.

Background

The keyboard backlight module is a light source combination which enables letters, characters and logos on a keyboard to emit light, and the opening and closing of the module and the overall brightness adjustment can be controlled by butting the power supply end and the control end of the module with a mainboard of a computer.

The existing backlight module is a four-layer mechanism, which comprises a light-shielding sheet, a light-guiding sheet, a reflecting sheet and an LED light source, and the principle is that the light of the LED light source is transmitted to the whole keyboard block through the light-guiding sheet, the reflecting sheet plays a role of reflecting the light source upwards to the keycap as much as possible, the light-shielding sheet blocks the light source which is not needed, and the keycap is provided with a window downwards to enable the light to enter the keycap area, while the existing backlight module has the LED light source in the middle of the keyboard or on the upper and lower sides of the keyboard, the light at the far end is weaker and weaker according to the energy propagation rule, and has bright dead angles, although the number of lamps can be increased by changing the angle of the lamps or a proper amount, in view of the diversity of the design structure of the keyboard, the hot melting holes can block the light source, so that the optical property of the whole keyboard can not be complete, and in addition, the luminance can be improved by increasing the thickness of the light-guiding sheet and the luminous dot density, however, the thickness of the backlight module is increased, and a long-term practical verification can be performed to complete a project, and meanwhile, the size of the LED of the conventional backlight module is L3.8 × W0.9 × H0.45, more LEDs occupy more space and energy consumption, and thicker light guide plates cause troubles to the economy and lightness of a computer.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving one of the technical problems of the prior art or the related art.

Therefore, the technical scheme adopted by the utility model is as follows:

the keyboard backlight module comprises a backlight module body, wherein the backlight module body comprises a light emitting sheet, a structural film and a light halo sheet, the structural film is covered on the front surface of the light emitting sheet, the light halo sheet is attached to the front surface of the structural film, the front surface of the light emitting sheet is connected with a light emitting source body, an opening with a wide upper part and a narrow lower part is formed in the surface of the structural film, the light emitting source body is embedded in the opening, and a key cap body is arranged at the top of the backlight module body.

The present invention in a preferred example may be further configured to: the inner wall of the opening is printed with a light guide layer, and the light guide layer corresponds to the key cap body in position.

The present invention in a preferred example may be further configured to: and the surface of the light guide layer is provided with dots for optical diffuse reflection.

The present invention in a preferred example may be further configured to: the light halo piece is made of transparent materials, and shading ink, reflection ink and colloid are sequentially printed on the surface of the light halo piece.

The present invention in a preferred example may be further configured to: the light emitting source body is a sub-millimeter light emitting diode or a micrometer light emitting diode.

The present invention in a preferred example may be further configured to: and the front surface of the structural film is provided with a light source isolating layer.

The present invention in a preferred example may be further configured to: and shielding ink is printed on the back surface of the light-emitting sheet.

By adopting the technical scheme, the utility model has the beneficial effects that:

according to the keyboard, the single light emitting source body at the bottom of the key cap body is controlled by an IC (integrated circuit) so that the single key cap is independent in optics, multi-color control is achieved, the artistic aesthetic feeling is better, the light guide layer on the surface of the opening can absorb light energy emitted from the light emitting source body, light is guided to the whole key cap/keyboard area, the problems that the existing keyboard mechanism is blocked and the optics of the far end of the keyboard cannot be balanced are solved, meanwhile, the existing four-layer structure is replaced by the three-layer structure, the processing procedures are reduced, the research and development period is shortened, the overall thickness of the keyboard is reduced, the expansion of other spaces of a computer is facilitated, the overall optical effect of the keyboard is better, uniform and controllable, and the power consumption is saved.

Drawings

Fig. 1 is a schematic diagram of the overall explosive structure of the present invention.

Reference numerals:

1. a backlight module main body; 2. a light emitting sheet; 3. a structural film; 4. a halation sheet; 5. a light emitting source body; 6. opening a hole; 7. a key cap body; 8. a light guide layer; 9. a light source blocking layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

It is to be understood that this description is made only by way of example and not as a limitation on the scope of the utility model.

A keyboard backlight module according to some embodiments of the present invention is described below with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1, the keyboard backlight module provided by the utility model includes a backlight module main body 1, the backlight module main body 1 includes a light emitting sheet 2, a structural film 3 and a light halo sheet 4, the structural film 3 covers the front surface of the light emitting sheet 2, the light halo sheet 4 is attached to the front surface of the structural film 3, the front surface of the light emitting sheet 2 is connected with a light emitting source body 5, the light emitting source body 5 is a sub-millimeter light emitting diode or a micrometer light emitting diode, an opening 6 with a wide upper part and a narrow lower part is formed in the surface of the structural film 3, the light emitting source body 5 is embedded in the opening 6, and a key cap body 7 is arranged at the top of the backlight module main body 1.

Specifically, a mini/micro LED (the size of the LED can reach the minimum L0.4W 0.2H 0.13 at present, and can be further reduced along with the improvement of semiconductor technology) with extremely low energy consumption and controllable brightness and color is installed at the bottom of each keycap body 7, so that an external circuit is connected with the light source body 5 on the premise of not occupying space, and the light equalizing effect of each symbol of each character key of the light-emitting keyboard is realized by utilizing the design improvement innovation of the internal circuit of the light source body and combining with the software and hardware of a computer; in addition, the material of the light-emitting sheet 2 in this embodiment is combined with the existing market material, and the self-manufacturing is realized through improvement and repeated verification, and the detailed description is not provided in this embodiment.

Further, the opening 6 is not limited to a square shape, a circular shape, a special shape, and the like when surrounding and protecting the periphery of the light emitting source body 5; the front surface of the luminous sheet 2 is provided with a bonding or printing process, is generally white or other required colors, and has the functions of protecting a circuit from oxidation, increasing folding resistance and reflecting a light source of the luminous body 5; the structural film 3 is made of transparent or colored ultrathin materials; meanwhile, each keycap body 7 corresponds to one luminous source body 5, and the luminous source bodies 5 can be replaced into a common function or an IC function, so that independent color control is realized.

In this embodiment, the inner wall of the opening 6 is printed with the light guide layer 8, the light guide layer 8 corresponds to the position of the key cap body 7, and the surface of the light guide layer 8 is provided with dots for optical diffuse reflection.

Specifically, the light guide layer 8 can absorb light energy emitted from the light source body 5, so as to guide the light to the whole key cap/keyboard area, and an optical diffuse reflection dot or pattern printed or embossed on the structural film 3 surrounding the light source body 5, so as to improve the brightness of the area, thereby illuminating characters (logo) on the key cap body 7.

In this embodiment, the halation sheet 4 is made of a transparent material, and light-shielding ink, reflective ink, and a colloid are sequentially printed on the surface thereof.

Specifically, the halation sheet 4 can also be made of other semi-transparent PET/PC/PI materials, the shading ink part covers the light right above the light emitting source body 5, the reflection ink part covers other light possibly leaked outside the keycap area, and the colloid has the functions of protecting the structural film 3 layer and is attached to the bottom of the keyboard.

In this embodiment, the front surface of the structural film 3 is provided with the light source partition layer 9, which is designed to realize that the brightness of each key point on the keyboard is not interfered with each other, and the periphery of each key point can be partitioned by the light source, that is, the light of the adjacent or similar key point is not crossed to other key points when the key point is lighted, so as to realize the innovation of independent lighting.

The specific method is to carbonize the structural film 3 into a corresponding required shape through high-temperature transformation of laser, so that light cannot normally propagate and can only be limited in the region.

In this embodiment, the back surface of the light-emitting sheet 2 is printed with a shielding ink, which is designed to provide a shielding effect on the back surface of the light-emitting sheet 2, thereby preventing light spots of the light-emitting body 5 from leaking and printing the related information logo.

The working principle and the using process of the utility model are as follows: during the use, utilize the single IC control of light emitting source body 5 in the 7 bottoms of the key cap body, make the optics of single key cap independent, reach and dazzle various control more, have more artistic aesthetic feeling, utilize the light guide layer 8 on 6 surfaces of trompil can absorb the light energy that comes from light emitting source body 5 and distribute, thereby guide the light to whole key cap/keyboard region, solve the separation of current keyboard mechanism, the unable balanced problem of keyboard distal end optics, change the current four-layer structure into three-layer construction simultaneously, processing procedure has been reduced, shorten the research and development cycle, and the whole thickness attenuate of the utility model, do benefit to the expansion of other spaces of computer, make the whole optical effect of keyboard better evenly controllable, save the consumption.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be understood that when an element is referred to as being "mounted to," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.

Claims (7)

1. The utility model provides a keyboard backlight unit, includes backlight unit main part (1), its characterized in that, backlight unit main part (1) contains light-emitting piece (2), structural film (3) and halo piece (4), structural film (3) cover in the front of light-emitting piece (2), halo piece (4) laminate in the front of structural film (3), the front of light-emitting piece (2) is connected with light-emitting source body (5), narrow trompil (6) about wide is seted up on the surface of structural film (3), light-emitting source body (5) gomphosis in the inside of trompil (6), just the top of backlight unit main part (1) is equipped with key cap body (7).

2. The keyboard backlight module according to claim 1, wherein the inner wall of the opening (6) is printed with a light guide layer (8), and the light guide layer (8) corresponds to the key cap body (7).

3. The keyboard backlight module according to claim 2, wherein the surface of the light guide layer (8) is provided with dots for optical diffuse reflection.

4. The keyboard backlight module according to claim 1, wherein the light vignetting sheet (4) is made of a transparent material, and the surface thereof is printed with a light shielding ink, a reflective ink and a colloid in sequence.

5. The keyboard backlight module according to claim 1, wherein the light emitting source body (5) is a sub-millimeter light emitting diode or a micrometer light emitting diode.

6. The backlight module of claim 1, wherein the front surface of the structural film (3) is provided with a light source blocking layer (9).

7. The keyboard backlight module according to claim 1, wherein the back surface of the light emitting sheet (2) is printed with a shielding ink.

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