Lamplight module layout arrangement structure of notebook keyboard backlight

Abstract

The utility model provides a light module layout arrangement structure for notebook keyboard backlight, which is applied to the field of keyboard backlight, and comprises a plurality of light modules, each light module is the same layout template, and each light module comprises an electronic component D and a network line Net; the electronic component D comprises an LED driving chip and an RGBW LED assembly; the RGBW LED assembly comprises a red light LED, a green light LED, a blue light LED and a white light LED, the red light LED, the green light LED and the blue light LED are horizontally and centrally arranged in the mode that the positions can be freely exchanged, and the white light LED is arranged on the positive electrode sides of the red light LED, the green light LED and the blue light LED and arranged in the vertical direction. And the LED driving chips are arranged on the negative electrode sides of the red light LED, the green light LED and the blue light LED. According to the special-shaped keyboard, the red light LEDs, the green light LEDs and the blue light LEDs are horizontally arranged in the middle in the mode that the positions can be freely exchanged and the sequence is variable, and the white light LEDs are arranged at the specific positions, so that the requirements of various special-shaped keyboard layouts can be met, and the energy consumption is reduced while the color effect is ensured in a mixed color scene.

Description

Technical Field

[0001] This application relates to the field of keyboard backlighting, and in particular to a layout and arrangement structure of the light modules for a laptop keyboard backlight. Background Technology

[0002] As laptops continue to evolve towards thinner, lighter, and more personalized designs, keyboard backlighting, as a key element in enhancing user experience, urgently requires technological innovation. Traditional laptop keyboard backlighting largely relies on an RGB three-color mixing scheme, with LED light sources often packaged into fixed modules, such as integrated surface-mount LEDs. This results in a fixed arrangement and physical position of the three colors, making flexible adjustments impossible. In the pursuit of ultra-thin, narrow-bezel laptop designs, or in the creation of uniquely shaped keyboards to meet distinctive aesthetic needs, this fixed approach severely restricts designers' creativity, preventing the achievement of ideal keyboard layouts.

[0003] In terms of color rendering, traditional solutions generate white light by superimposing the three primary colors of red, green, and blue. However, in practical applications, this light mixing method is prone to uneven color mixing, resulting in impure white light with significant color temperature deviations. This not only affects the user's comfort when reading keyboard characters in low-light environments but also reduces the overall visual effect. Moreover, to achieve diverse color display, traditional solutions need to activate multiple channels simultaneously, which undoubtedly increases power consumption significantly, further shortening the usage time of laptops with already limited battery life.

[0004] In large-size keyboard applications, multi-chip cascading solutions have become the inevitable choice. However, traditional cascading methods face numerous challenges. Because signals are transmitted between multiple LED driver chips, they are highly susceptible to external interference, leading to signal distortion and affecting the stability and consistency of the backlight display. Furthermore, the complex wiring connections not only create redundancy and increase the difficulty of internal laptop space layout but also increase the probability of malfunctions, making it difficult to meet the stringent requirements of low latency and high consistency backlighting for large-size keyboards. Therefore, developing a novel laptop keyboard backlight technology to overcome the limitations of traditional solutions has become an urgent problem for the industry. Utility Model Content

[0005] The purpose of this application is to solve the technical problems of uneven color mixing, color temperature deviation and high power consumption in traditional RGB three-color mixing schemes. Compared with the existing technology, it provides a layout and arrangement structure of the light module for a laptop keyboard backlight, including multiple light modules, each of which is based on the same layout template. The light module includes electronic components D and network lines Net.

[0006] Electronic component D includes an LED driver chip and an RGBW LED assembly. The LED driver chip is used to drive and control the RGBW LED assembly.

[0007] The RGBW LED assembly comprises a red light LED, a green light LED, a blue light LED and a white light LED, wherein the red light LED, the green light LED and the blue light LED are arranged in a horizontal centering manner with positions being exchangeable, and the white light LED is arranged on the positive side of the red light LED, the green light LED and the blue light LED and forms a vertical arrangement;

[0008] The LED driving chip is arranged on the negative side of the red light LED, the green light LED and the blue light LED;

[0009] The network line Net is used for electrically connecting the electronic element D and performing power supply and data transmission.

[0010] Further, the sequence of the red light LED, the green light LED and the blue light LED in the vertical direction can be changed according to requirements, and the center distance between each LED is kept at 0.26±0.13mm.

[0011] Further, the vertical distance between the center of the white light LED and the horizontal connection line of the centers of the red light LED, the green light LED and the blue light LED is 0.80±0.25mm.

[0012] Further, when the plurality of light modules are cascaded at the multi-LED driving chip level, the data output pin of the LED driving chip is connected to the data input pin of the next level LED driving chip through the network line Net, and the lines of other light modules are connected according to corresponding rules.

[0013] Further, in the mixed color scene, the LED driving chip supports the cooperation of the white light LED with the red light LED, the green light LED and the blue light LED, and dynamically adjusts the current balance performance and energy consumption of each channel.

[0014] Compared with the prior art, the application has the following advantages:

[0015] The application adopts the horizontal centering arrangement manner with exchangeable positions and variable sequence of the red light LED, the green light LED and the blue light LED, and the specific position arrangement of the white light LED, which can meet the requirements of various special-shaped keyboard layouts and provide strong support for the appearance innovation of notebook computers; through the independent driving control of the LED driving chip on the RGBW channels and the reasonable layout of the white light LED and the RGB three-color LED, the light can be more uniform when mixed, effectively solving the common problems of uneven color mixing and color temperature deviation in the traditional RGB three-color mixing scheme; meanwhile, in the mixed color scene, the LED driving chip can dynamically adjust the current of each channel according to actual requirements, which reduces the energy consumption while ensuring the color effect and provides users with a more energy-saving and environmentally friendly use experience. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall layout of the light module proposed in the present application is shown in the figure;

[0017] Figure 2 The component parts of the light module proposed in the present application are shown in the figure;

[0018] Figure 3 The pin diagram of each component of the light module proposed in the present application is shown in the figure;

[0019] Figure 4 The network line Net distribution proposed in the present application is shown in the figure;

[0020] Figure 5 The spatial arrangement of the RGBW LED assembly of the present application is shown in the figure. DETAILED DESCRIPTION

[0021] The embodiments will be described in detail in conjunction with the accompanying drawings, and all other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor shall fall within the scope of the present application.

[0022] Embodiments:

[0023] The utility model provides a notebook keyboard backlight light module layout arrangement structure, please refer to Figures 1-5 , including a plurality of light modules, each light module is same layout template, and the light module includes electronic element D and network line Net;

[0024] The electronic element D includes an LED driving chip and an RGBW LED assembly, the LED driving chip is used for driving control to the RGBW LED assembly, as the core control component of the whole light module, the LED driving chip is responsible for accurate driving control to the RGBW LED assembly. The LED driving chip can receive data signals from the data network line Net6, and carry out analysis processing to it, so as to output corresponding driving signals, to control the luminous state of red light LED, green light LED, blue light LED and white light LED, including luminance, color and other parameters;

[0025] The RGBW LED assembly comprises a red light LED, a green light LED, a blue light LED and a white light LED, wherein the red light LED, the green light LED and the blue light LED are arranged in a horizontal centering manner in an arbitrary exchangeable position, and the flexible arrangement manner provides a wide space for the personalized design of a notebook keyboard, whether it is a regular rectangular keyboard layout or a special-shaped keyboard designed for the pursuit of thinness and unique appearance. For example, in a game notebook keyboard, the red light LED can be arranged under commonly used game control keys according to the game operation habit, and the brightness of the red light LED is controlled separately to highlight the game operation area and improve the game experience of players.

[0026] The LED driving chip is arranged at the negative side of the red light LED, the green light LED and the blue light LED, the positive pad of the red light LED, the green light LED and the blue light LED is arranged at the left side, the negative pad is arranged at the right side, the sequence of the red light LED, the green light LED and the blue light LED in the vertical direction can be changed according to requirements, and the center distance between each LED is kept at 0.26±0.13mm. This size tolerance range is verified through a large number of experiments and actual production, which can not only ensure that the light emitted by the LEDs in different positions will not have obvious brightness and color difference when mixed, but also meet the assembly accuracy requirement in the production process, effectively reducing the assembly failure rate caused by size deviation.

[0027] The white light LED is arranged at the positive side of the red light LED, the green light LED and the blue light LED and is arranged in a vertical direction. The vertical distance between the center of the white light LED and the horizontal connection line of the centers of the red light LED, the green light LED and the blue light LED is 0.80±0.25mm. This layout manner enables the white light LED and the RGB three-color LED to form a good light superposition effect and reduce the uneven mixing phenomenon. In actual application, when a natural and soft white light effect is needed, the white light LED and the RGB three-color LED work cooperatively, and accurate color temperature and uniform color white light output can be realized by accurately adjusting the current of each channel, effectively solving the problems of uneven white light mixing and color temperature deviation in the traditional RGB three-color mixing scheme.

[0028] The network line Net is used for electrically connecting the electronic element D and performing power supply and data transmission. When a plurality of light modules are cascaded in a plurality of LED driving chips, the data output pin of the LED driving chip is connected to the data input pin of the next stage LED driving chip through the network line Net, and the lines of other light modules are connected according to corresponding rules.

[0029] Specifically, the pins of the white light LED include a positive electrode D01 and a negative electrode D02.

[0030] The pins of the red light LED include a positive electrode D03 and a negative electrode D04.

[0031] The pins of the green LED include a positive electrode D05 and a negative electrode D06;

[0032] The pins of the blue LED include a positive electrode D07 and a negative electrode D08;

[0033] The network line Net undertakes the important task of electrically connecting the electronic elements D and the gold finger J, and realizes the functions of power supply and data transmission. Specifically, it includes the following lines:

[0034] Net1 (5V positive network line): It is connected with the positive electrode D01 of the white LED, the positive electrode D03 of the red LED, the positive electrode D05 of the green LED, the positive electrode D07 of the blue LED, and the positive electrode D14 of the LED driving chip, and provides stable 5V power supply for the entire light module, ensuring that the LED and the LED driving chip can work normally.

[0035] Net2 (red LED negative network line): It is connected by the negative electrode D04 of the red LED and the red light driving pin D10 of the LED driving chip, and is used to transmit the red light driving signal output by the LED driving chip to drive the red LED to display red light.

[0036] Net3 (green LED negative network line): It is connected by the negative electrode D06 of the green LED and the green light driving pin D11 of the LED driving chip, and is responsible for transmitting the green light driving signal output by the LED driving chip to make the green LED display green light.

[0037] Net4 (blue LED negative network line): It is connected by the negative electrode D08 of the blue LED and the blue light driving pin D12 of the LED driving chip, and is used to transmit the blue light driving signal output by the LED driving chip to the negative electrode D08 of the blue LED to drive the blue LED to display blue light.

[0038] Net5 (white LED negative network line): It is connected by the negative electrode D02 of the white LED and the white light driving pin D13 of the LED driving chip, and realizes the transmission of the white light driving signal of the LED driving chip to control the white LED to display white light.

[0039] Net6 (data network line): It is connected with the data input pin D15 of the LED driving chip to introduce external data signals into the LED driving chip. After the LED driving chip analyzes and processes these data, it outputs corresponding driving signals to realize precise control of the red LED, the green LED, the blue LED, and the white LED.

[0040] Net7 (GND negative network line): connect the LED drive chip negative pin D16, provide negative connection for the circuit, form a complete circuit loop, ensure that the current can flow out from the LED drive chip, complete a series of operations such as signal driving and LED light emitting;

[0041] The pins of the LED drive chip include D09, D10, D11, D12, D13, D14, D15 and D016;

[0042] The specific connection mode of the network line Net is as follows:

[0043] Among them, the 5V positive network line Net1 is connected with the positive poles of the white light LED D01, the red light LED D03, the green light LED D05, the blue light LED D07 and the LED drive chip D14.

[0044] Among them, the data network line Net6 is connected with the data input pin D15 of the LED drive chip.

[0045] Among them, the GND (ground) negative network line Net7 is connected with the negative pin D16 of the LED drive chip.

[0046] Among them, the red light LED negative network line Net2 is connected by the red light LED negative D04 and the LED drive chip red light driving pin D10.

[0047] Among them, the green light LED negative network line Net3 is connected by the green light LED negative D06 and the LED drive chip green light driving pin D11.

[0048] Among them, the blue light LED negative network line Net4 is connected by the blue light LED negative D08 and the LED drive chip blue light driving pin D12.

[0049] Among them, the white light LED negative network line Net5 is connected by the white light LED negative D02 and the LED drive chip white light driving pin D13.

[0050] When the LED driving chip is connected to the 5V network meeting the required current, and the GND negative network is connected to the negative pin D16 of the LED driving chip, the circuit is provided with stable power supply and ground loop. At this time, if a matching data signal enters the data network line Net6, the signal will be transmitted to the data input pin D15 of the LED driving chip through Net6. After the LED driving chip receives the data signal, it is parsed and processed to generate the driving signals of the red LED, green LED, blue LED and white LED. Specifically, the red light driving pin D10 of the LED driving chip sends the red light driving signal to the negative D04 of the red LED through the red light LED negative network line Net2, so as to drive the red LED to display red light; the green light driving pin D11 of the LED driving chip sends the green light driving signal to the negative D06 of the green LED through the green light LED negative network line Net3, so as to drive the green LED to display green light; the blue light driving pin D12 of the LED driving chip sends the blue light driving signal to the negative D08 of the blue LED through the blue light LED negative network line Net4, so as to drive the blue LED to display blue light; and the white light driving pin D13 of the LED driving chip sends the white light driving signal to the negative D02 of the white LED through the white light LED negative network line Net5, so as to make the white LED display white light.

[0051] In the case of cascading of multiple LED driving chips, the data output pin D09 of the LED driving chip is connected to the data input pin of the next stage LED driving chip through the network line, and other lines are connected according to the same rule. In this way, when the positive, negative and data signals meeting the current are connected, all the LEDs can be driven. In the mixed color scene, the LED driving chip has strong cooperative working ability and supports the cooperative work of white LED and red LED, green LED and blue LED. By dynamically adjusting the current of each channel, the color can be accurately controlled according to the actual demand, the diversification of color is realized, and the performance and energy consumption are balanced. For example, when presenting warm color tone, the red LED channel current can be appropriately increased, and the white LED channel is matched to reduce the energy consumption while ensuring the color effect, and the endurance of the notebook computer is improved.

[0052] The present application can meet the needs of various special-shaped keyboard layouts by horizontally centering the arrangement of red LED, green LED and blue LED in any position and in variable order, and setting the specific position of white LED. Whether it is a narrow-frame notebook designed for extreme thinness or a personalized notebook with a unique appearance, the light module layout can be flexibly adapted to provide strong support for the appearance innovation of notebook computers.

[0053] In the game notebook keyboard, the red light LED can be laid under the commonly used game control keys such as WASD according to the game operation habit, and the red light LED brightness is controlled separately to highlight the game operation area and improve the game experience of the player. In the office notebook keyboard, specific color LEDs can be laid in the function key area, such as laying green light LEDs under commonly used shortcut keys to facilitate users to quickly identify and operate and improve office efficiency.

[0054] Through the independent driving control of RGBW channels by the LED driving chip and the reasonable layout of white light LEDs and RGB three-color LEDs, the light can be more uniform when mixed, effectively solving the common problems of uneven color mixing and color temperature deviation in traditional RGB three-color mixing schemes. Whether it is to present a single color or mixed color, it can guarantee the accuracy and consistency of the color, and bring users a more comfortable and realistic visual experience.

[0055] The LED driving chip supports the cooperative work of white light LEDs and red light LEDs, green light LEDs and blue light LEDs, and can realize rich and varied color presentation through dynamic adjustment of channel current. Users can easily realize the free switching from cold tone to warm tone and from bright color to soft color according to different use scenarios and personal preferences through software control, meeting the individualized lighting needs.

[0056] In the mixed color scene, the LED driving chip can dynamically adjust the channel current according to the actual demand, reduce the energy consumption while ensuring the color effect. For example, when high brightness display is not needed, the channel current is appropriately reduced to reduce energy consumption, which helps to improve the endurance of the notebook computer. Compared with the traditional RGB mixing scheme of multiple channels activated at the same time, the energy consumption of the light module can be reduced by 66% under the condition of realizing the same color effect, providing users with a more energy-saving and environmentally friendly use experience.

[0057] Each light module adopts the same layout template, and in the production and manufacturing process, the LED driving chip, LED and other components can be pasted and welded according to the unified layout through standardized process flow, greatly improving the production efficiency. According to the actual production data statistics, the production cycle can be shortened by 50% and the production cost can be reduced by 40% after adopting the modular design. At the same time, the standardized module design is also convenient for later quality detection and maintenance. When a module fails, it can be quickly replaced to reduce maintenance time and cost.

[0058] In the cascade of the multi-LED driving chip, the stability and reliability of signal transmission are ensured through reasonable circuit connection design. The connection mode of the data output pin of the LED driving chip and the data input pin of the next stage LED driving chip, as well as the corresponding connection rules of other lines, effectively reduces the risk of signal interference, guarantees the low delay and high consistency of backlight display in the large-size keyboard multi-LED driving chip cascade scenario, and ensures that all LEDs work synchronously and stably even in a complex signal transmission environment, thereby improving the performance of the entire notebook keyboard backlight system.

[0059] The above is only the best embodiment adopted by the application in combination with the current actual demand, but the protection scope of the application is not limited thereto.

Claims

1. A layout structure for a laptop keyboard backlight module, comprising multiple light modules, each light module having the same layout template, characterized in that, The lighting module includes electronic component D and network line Net; The electronic component D includes an LED driver chip and an RGBW LED assembly, wherein the LED driver chip is used to drive and control the RGBW LED assembly; The RGBW LED component includes red LEDs, green LEDs, blue LEDs and white LEDs, wherein the red LEDs, green LEDs and blue LEDs are arranged horizontally in the center in a manner that allows for arbitrary interchange of their positions, and the white LEDs are disposed on the positive electrode side of the red LEDs, green LEDs and blue LEDs and are arranged in a vertical direction. The LED driver chip is located on the negative side of the red LED, green LED, and blue LED; The network line Net is used to electrically connect electronic component D and to provide power and data transmission.

2. The layout and arrangement structure of the backlight module for a laptop keyboard according to claim 1, characterized in that, The vertical order of the red, green, and blue LEDs can be changed as needed, and the center distance between each LED is maintained at 0.26±0.13mm.

3. The layout and arrangement structure of the backlight module for a laptop keyboard according to claim 2, characterized in that, The vertical distance between the center of the white LED and the horizontal line connecting the centers of the red, green, and blue LEDs is 0.80 ± 0.25 mm.

4. The layout and arrangement structure of the backlight module for a laptop keyboard according to claim 1, characterized in that, When multiple lighting modules are cascaded with multiple LED driver chips, the data output pins of the LED driver chips are connected to the data input pins of the next-level LED driver chips via a network line Net, and the lines of other lighting modules are connected according to corresponding rules.

5. The layout and arrangement structure of the backlight module for a laptop keyboard according to claim 1, characterized in that, In mixed-color scenarios, the LED driver chip supports the collaborative operation of white LEDs with red, green, and blue LEDs, and dynamically adjusts the current balance performance and energy consumption of each channel.

Images