CN219105988U

CN219105988U - Multi-point backlight keyboard

Info

Publication number: CN219105988U
Application number: CN202223495177.2U
Authority: CN
Inventors: 刘永隆; 周道
Original assignee: Sunrex Technology Corp
Current assignee: Sunrex Technology Corp
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-30
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to a multipoint backlight keyboard which consists of a plurality of key caps, a plurality of bridging structures, a keyboard frame plate, a transparent circuit board, an LED backlight layer and a bottom plate. The LED backlight layer is provided with a plurality of LED components, each LED component can be independently controlled to be switched to emit light or not emit light and adjust the light source color when the LED component emits light, so that each LED component emitting light is arranged to form an image, and the light effect corresponding to the image is generated on each key cap.

Description

Multi-point backlight keyboard

Technical Field

The utility model relates to a multi-point backlight keyboard, in particular to a structure which is characterized in that a plurality of RGB LEDs arranged in a matrix are used for projecting a color light source onto a transparent key cap so as to display multicolor transparent images on the transparent key cap.

Background

In recent years, various electronic products are continuously promoted to be new due to the progress of technology, the appearance and the backlight effect of the electronic products are one of the important points of comparison products for young consumers, and the keyboard is one of important tools in the use of computers.

However, most of the light effects of the currently marketed keyboards focus on the brightness and color changes of the key caps, and cannot provide the light effects with recognition such as characters or graphics.

Disclosure of Invention

In order to overcome the above-mentioned disadvantages, the present utility model provides a multi-point type backlight keyboard, which uses the light emission or non-light emission of each LED component, and matches with the control of light source color to form various single-color or multi-color characters, graphics or symbols on each transparent keycap, so that the lighting effect of the keyboard has unique identification.

The utility model relates to a multipoint backlight keyboard, which consists of a plurality of key caps, a plurality of bridging structures, a keyboard frame plate, a transparent circuit board, an LED backlight layer and a bottom plate; the key cap is a square light-transmitting key assembly; the top edge and the bottom edge of the bridge structure are respectively connected between the keycap and the keyboard frame plate in a pivoted mode to form a bridge type key structure; the keyboard frame is a light-transmitting frame plate which is approximately rectangular, a plurality of bridging structures are correspondingly connected with the frame plate in a pivoted mode, a plurality of light-transmitting elastic components are arranged on the frame plate in a penetrating mode, and each elastic component can be pressed downwards to touch and conduct the transparent circuit board; the transparent circuit board is a long sheet-shaped circuit board structure for conducting key signals and is positioned between the keyboard frame plate and the LED backlight layer; the top surface of the LED backlight layer is provided with a plurality of LED components for generating a light source and penetrating out of the key cap; the bottom plate is a plate body structure for supporting the keyboard frame plate, the transparent circuit board and the LED backlight layer; each LED component can be independently controlled to be switched to emit light or not and adjust the light source color when the LED component emits light, so that each LED component emits light is arranged to form an image, and the light effect corresponding to the image is generated on each key cap.

Preferably, the LED assembly is an RGB LED.

Preferably, the image is one of text, symbol, graphic or a combination thereof. Preferably, the LED assemblies are arranged in a matrix, and the distribution range of each LED assembly corresponds to the distribution range of each key cap.

Drawings

Fig. 1 is an exploded view of a multi-point backlight keyboard according to the present utility model.

Fig. 2 is a partial cross-sectional view of a multi-point backlight keyboard of the present utility model.

FIG. 3 is a schematic diagram of an LED backlight layer according to the present utility model.

FIG. 4 is a schematic diagram of the present utility model for forming a patterned light effect on each key cap.

Reference numerals

Light-transmitting key cap

Pin joint groove

Guide chute

18. pressing part

Bridge structure

First frame

Sliding shaft

Pivot axis

Second frame

Pivot axis

Slide shaft

Light-transmitting keyboard frame plate

Receiving groove

32. guide chute

Resilient assembly

40. transparent circuit board

LED backlight layer

51. LED assembly

Bottom plate

Detailed Description

Referring to fig. 1 to 4, the present utility model is a multi-point type backlight keyboard, which is composed of a plurality of transparent key caps 10, a plurality of bridging structures 20, a transparent keyboard frame plate 30, a transparent circuit board 40, an LED backlight layer 50 and a bottom plate 60.

The transparent key cap 10 is made of transparent material (or transparent material), and is a generally square transparent pressing component.

The bridge structure 20 is an integral rotating structure formed by intersecting shafts of a first frame 21 and a second frame 22, two corresponding sliding shafts 211 extending inwards from both sides of the top edge of the first frame 21 are slidingly pivoted in two corresponding sliding grooves 16 on the bottom surface of the transparent keycap 10, two corresponding pivots 221 on the top edge of the second frame 22 are rotatably pivoted in two corresponding pivoting grooves 14 on the bottom surface of the transparent keycap 10, and then two corresponding sliding shafts 222 extending outwards from both sides of the bottom edge of the second frame 22 are slidably accommodated in two corresponding sliding grooves 32 bent upwards of a transparent keycap 30, and corresponding pivots 212 on the bottom edge of the first frame 21 are pivoted in corresponding receiving grooves 31 bent upwards of a transparent keycap 30, so that the top edge and the bottom edge of the bridge structure 20 are respectively pivoted between the transparent keycap 10 and the transparent keycap 30 to form a bridge key structure.

The transparent keyboard frame 30 is made of transparent material (or transparent material), and is a rectangular transparent frame, on which a plurality of bridge structures 20 and a plurality of transparent key caps 10 are correspondingly pivoted, and on which a plurality of transparent elastic components 38 are arranged in a penetrating manner, and top ends of the elastic components 38 respectively correspond to pressing portions 18 propped against bottom surfaces of the transparent key caps 10, so that pressing columns (not shown) in the elastic components 38 can be pressed downwards to touch and conduct the transparent circuit board 40.

The transparent circuit board 40 is a long sheet-like thin film circuit board structure for conducting key signals, and is located between the transparent keyboard frame 30 and an LED backlight layer 50.

The LED backlight layer 50 is an LED backlight plate, the top surface of the LED backlight plate is provided with a plurality of LED assemblies 51 arranged in a matrix, and the distribution range of each LED assembly 51 corresponds to the distribution range of each transparent keycap 10, so that each transparent keycap 10 corresponds to a plurality of LED assemblies 51 respectively. Of course, the number of the LED assemblies 51 is also different according to the size difference of the transparent key caps 10, for example: twenty of the LED assemblies 51 are under the smaller a-key, while forty of the LED elements 51 are under the larger enter key. In terms of structural design, the LED assembly 51 is a multi-color light emitting diode (RGB LED) that can be driven to generate light sources of various colors, and the light sources penetrate the transparent keycap 10 through the transparent circuit board 40, the transparent keyboard frame board 30, and the bridging structure 20 to form light effects. In terms of driving, each of the LED assemblies 51 can be independently controlled to switch to emit light or not, and the color of the light source when the LED assemblies 51 emit light is adjusted, so that each of the LED assemblies 51 emitting light is arranged to form an image (e.g. text, graphics, symbol) formed by mixing a single color or multiple colors, and each of the transparent key caps 10 is transmitted to generate a corresponding image light effect.

The bottom plate 60 is a plate body for supporting the transparent keyboard frame 30, the transparent circuit board 40 and the LED backlight layer 50, so as to assemble a complete keyboard key structure.

The image application of the multi-point backlit keyboard of the present utility model is further described below.

As shown in fig. 3, it is assumed that some of the LED assemblies 51 are set to emit light, and are arranged and combined into a letter such as MATRIX, wherein the light source color of each LED assembly 51 corresponding to MTI is blue, the light source color of each LED assembly 51 corresponding to AR is yellow, the light source color of each LED assembly 51 corresponding to X is red, and the other LED assemblies 51 are set to not emit light (in fig. 3, the sprinkled dots represent different colors, and the LED assemblies 51 without the sprinkled dots represent not emitting light). As shown in fig. 4, at this time, the light source of each light-emitting LED assembly 51 will penetrate the transparent key caps 10, and color MATRIX-like light effect is formed on each transparent key cap 10, so that the keyboard generates a text light effect with a technological sense. Of course, the english alphabets can be presented in a single color, and the same english alphabets can also have a plurality of light colors by changing the color of the light source of each LED assembly 51; for example, when the LED modules 51 arranged in the letter M respectively generate two different color light sources (e.g., the left half of the letter M is blue, and the right half of the letter M is yellow), the letter M can form a double-color light effect, so as to display a bright text light visual effect on the transparent key cap 10. In addition to the display of text, the LED modules 51 for each light emission may be arranged in a pattern or symbol (e.g., a pattern, an exclamation mark, or a question mark), or may be a combination of text, pattern, and symbol, depending on the user's needs.

As can be seen from the above description, the present utility model forms multiple groups of multi-point light sources by the LEDs arranged in matrix, and controls the color of the light sources by the light emission or non-light emission of each LED assembly 51 and the full color effect of the RGB LEDs, so that various single-color or multi-color characters, figures and symbols can be formed on each transparent keycap 10, so that the light of the keyboard has a bright and rich color effect and unique recognition.

The control of each LED module 51 includes at least two modes, i.e., preset or user-set. The preset mode is that the keyboard itself has built in various images, for example: firmware (FW) is written in a microcontroller (Micro Control Unit, MCU) of the keyboard, and a user can control each LED assembly 51 to switch various default images only by a default switch or a specific key on the keyboard, so as to form graphics, characters or symbols with monochromatic or color light effects on each transparent keycap 10. The self-setting mode is to connect the multi-point backlight keyboard of the present utility model to electronic devices such as a computer, a smart phone, a tablet computer or a notebook computer in a wired or wireless mode, and set and control whether each LED module 51 emits light and the light emitting color through the electronic devices, thereby forming light effects such as characters, symbols or graphics. For example, when the electronic device is a smart phone, the multi-point backlight keyboard of the present utility model can be connected to the smart phone through bluetooth or wifi, and image setting is performed through APP of the smart phone, so as to control the light emission and color of each LED assembly 51, and form a light effect on the transparent key cap 10.

In summary, the present utility model is a multi-point backlight keyboard, wherein an LED backlight layer is assembled in a thin bridge keyboard, and a plurality of RGB LEDs arranged in a matrix are used to project a color light source onto a transparent keycap, so as to achieve the effect of displaying a multicolor transparent image on the transparent keycap.

Claims

1. The multi-point backlight keyboard is characterized by comprising a plurality of key caps, a plurality of bridging structures, a keyboard frame plate, a transparent circuit board, an LED backlight layer and a bottom plate;

the key cap is a square light-transmitting key assembly;

the top edge and the bottom edge of the bridge structure are respectively connected between the keycap and the keyboard frame plate in a pivoted mode to form a bridge type key structure;

the keyboard frame is a light-transmitting frame plate which is approximately rectangular, a plurality of bridging structures are correspondingly connected with the frame plate in a pivoted mode, a plurality of light-transmitting elastic components are arranged on the frame plate in a penetrating mode, and each elastic component can be pressed downwards to touch and conduct the transparent circuit board;

the transparent circuit board is a long sheet-shaped circuit board structure for conducting key signals and is positioned between the keyboard frame plate and the LED backlight layer;

the top surface of the LED backlight layer is provided with a plurality of LED components for generating a light source and penetrating out of the key cap;

the bottom plate is a plate body structure for supporting the keyboard frame plate, the transparent circuit board and the LED backlight layer;

each LED component can be independently controlled to be switched to emit light or not and adjust the light source color when the LED component emits light, so that each LED component emits light is arranged to form an image, and the light effect corresponding to the image is generated on each key cap.

2. The multi-point backlight keyboard of claim 1, wherein the LED assemblies are RGB LEDs _。

3. The multi-point backlight keyboard of claim 1, wherein the image is one of text, symbols, graphics, or a combination thereof.

4. The multi-point backlight keyboard of claim 1, wherein each of the LED assemblies is arranged in a matrix, and the distribution range of each of the LED assemblies corresponds to the distribution range of each of the key caps.