An LCD display control panel and human-machine interaction device
By designing an LCD display control panel and combining it with an SPI bus and a USB communication interface, the problems of high power consumption and high cost of OLED display buttons were solved, realizing a low-power and low-cost human-computer interaction device with multi-functional display and button functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YIWEI MEIYUE AVIATION EQUIP TECH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-07-03
AI Technical Summary
Existing technologies for OLED displays suffer from high power consumption and high cost for buttons.
The system uses an LCD display button, connects the processing module and the LCD display button via an SPI bus, and communicates via a USB communication interface. Combined with a power supply module and a storage module, it integrates display and button functions, reducing power consumption and cost.
It achieves reduced power consumption and cost, while providing configurable display of images, character fonts, brightness, and contrast, thus improving human-computer interaction efficiency.
Smart Images

Figure CN224457352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of button technology, and in particular to an LCD display control panel and a human-computer interaction device. Background Technology
[0002] In recent years, with the development of technology, the requirements for intelligent control in the cockpits of trains, cars and airplanes have become increasingly higher. The spatial limitations of the cockpit and the uniformity of mechanical buttons have brought great challenges to the designers of the cockpit.
[0003] Traditional mechanical buttons are often single-function, with unintuitive button layouts or single-function indicators requiring fixed characters to indicate their function, which can easily lead to misoperation. Furthermore, some functions require multiple buttons, consuming significant space. With technological advancements, programmable buttons and indicative buttons are gradually gaining popularity, and OLED-based display technology is a newly emerging category in screen display applications. As a supporting control component for airborne equipment, OLED display control panels provide intuitive assistance and improve the efficiency of human-computer interaction. Therefore, the use of OLED buttons as a display interface is widely adopted in both military and civilian airborne applications.
[0004] However, using OLED display buttons as the light-emitting carrier for the display interface has problems such as high resistance, which can easily lead to increased voltage drop and power consumption, and the cost is too high. Utility Model Content
[0005] Based on the above problems, this utility model provides an LCD display control panel and a human-computer interaction device, aiming to solve the technical problems of high power consumption and high cost of OLED display buttons in the prior art.
[0006] An LCD display control panel, comprising:
[0007] At least one LCD display button;
[0008] The processing module is connected to the LCD display buttons;
[0009] At least one communication interface is provided to connect the control panel processing module and the host computer.
[0010] Furthermore, the processing module and the LCD display buttons are connected via an SPI bus.
[0011] Furthermore, the communication interface is a USB communication interface.
[0012] Furthermore, the LCD display control panel also includes a power supply module, which is connected to the processing module and the LCD display buttons respectively.
[0013] Furthermore, the LCD display control panel also includes a storage module, which is connected to the processing module. Furthermore, the storage module and the processing module are connected via an SPI bus.
[0014] Furthermore, each LCD display button includes an LCD display screen and a button body.
[0015] Furthermore, the button body is a self-resetting button body.
[0016] Furthermore, the LCD display control panel also includes an expansion interface for connecting the processing module.
[0017] A human-computer interaction device includes a host computer and an LCD display control panel as described above, wherein the host computer and the processing module are connected via a communication interface.
[0018] The beneficial technical effect of this utility model is that by designing an LCD display control panel with LCD display buttons, power consumption and cost are reduced compared to OLED display buttons. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of a specific embodiment of an LCD display control panel according to the present invention;
[0020] Figure 2 This is a schematic diagram illustrating the human-computer interaction process of an LCD display control panel according to this utility model. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.
[0024] See Figure 1 This utility model provides an LCD display control panel, comprising:
[0025] At least one LCD display button (1);
[0026] Processing module (2) is connected to LCD display button (1);
[0027] At least one communication interface (3) is provided to connect the control panel processing module (2) and the host computer (6) for communication.
[0028] Furthermore, each LCD display button includes an LCD display screen and a button body.
[0029] The LCD display button of this utility model combines display and button functions and is mainly used in various control panels. It is a new type of human-computer interaction device.
[0030] Furthermore, the button body is a self-resetting button body.
[0031] By designing an LCD display control panel with integrated LCD buttons, power consumption and cost are reduced compared to OLED display buttons.
[0032] Furthermore, the processing module and the LCD display buttons are connected via an SPI bus.
[0033] Specifically, the processing module is a microcontroller (MCU).
[0034] The processing module serves as the driving circuit for the LCD display buttons. It drives the LCD display buttons via the SPI bus using a four-wire drive system, which includes SCK, MOSI, MISO, D / C, and SS chip select instructions.
[0035] SPI (Serial Peripheral Interface) is a high-speed, full-duplex synchronous communication method commonly used for communication between microcontrollers (MCUs) and peripheral devices. An SPI bus typically includes four signal lines: Clock (SCK), Chip Select (CS), Master Output / Slave Input (MOSI), and Master Input / Slave Output (MISO).
[0036] The clock signal (SCK, Serial Clock) is a clock signal generated by the host device and used to synchronize data transmission.
[0037] The Master Out Slave In (MOSI) line is a data transmission line from the master device to the slave device. The master device sends data to the slave device through this line.
[0038] Master In Slave Out (MISO) is a data transmission line from the slave device to the master device. The slave device uses this line to send data back to the master device.
[0039] The Slave Select (SS) signal is a selection signal line used to select which slave device communicates with the master device.
[0040] D / C (Data / Command) is an additional control line for a specific peripheral device, distinguishing whether data or commands are being sent.
[0041] Furthermore, the communication interface (3) is a USB communication interface.
[0042] The communication interface (3) is a circuit used for human-computer interaction control. The LCD display buttons need to communicate with the host computer through the USB communication and processing module, which includes sending relevant instructions, such as the instruction to replace the display content.
[0043] Furthermore, the LCD display control panel also includes a power supply module (4), which is connected to the processing module and the LCD display buttons respectively.
[0044] Furthermore, the LCD display control panel also includes a storage module (5), which is connected to the processing module.
[0045] Specifically, the storage module (5) is a NOR flash memory.
[0046] The storage module (5) is a memory used to store the content displayed by the LCD display buttons. The stored display content can be replaced by the SPI bus.
[0047] The power supply module (4) is a circuit that provides power to the LCD display buttons, storage module (5) and processing module, for example, using 3.3V power supply.
[0048] Specifically, the power supply module (4) is powered by DC. Specifically, the power supply module (4) is a DC / DC converter power supply module.
[0049] Furthermore, the storage module and the processing module (2) are connected via the SPI bus.
[0050] Furthermore, each LCD display button includes an LCD display screen and a button body.
[0051] The LCD display buttons feature customizable display content such as images, fonts, background color, brightness, and contrast, and also have low power consumption.
[0052] Furthermore, the button body is a self-resetting button body.
[0053] Furthermore, the LCD display control panel also includes an expansion interface for connecting the processing module.
[0054] This utility model also provides a human-computer interaction device, including a host computer and an LCD display control panel as described above, wherein the host computer (6) and the processing module (2) are connected through a communication interface (3).
[0055] The host computer (6) is connected to the external device (7).
[0056] See Figure 2 The host computer can change the display content of the LCD display buttons via a communication interface. When the host computer issues a command to modify the display content of the control panel, the control panel processor module changes the display content of the LCD display buttons via the SPI bus. When the LCD display buttons issue corresponding button commands through touch, the control panel processing module receives the button command and, as required, sends the corresponding command to the host computer via USB communication. The host computer then confirms and processes the command before sending it to the external device. This realizes a human-computer interaction function for an LCD display control panel.
[0057] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An LCD display control panel, characterized by, include: At least one LCD display button; The processing module is connected to the LCD display buttons; At least one communication interface is provided to connect the control panel processing module and the host computer. Each of the LCD display buttons includes an LCD display screen and a button body.
2. An LCD display control panel as claimed in claim 1, characterized in that The processing module and the LCD display buttons are connected via an SPI bus.
3. An LCD display control panel as claimed in claim 1, wherein, The communication interface is a USB communication interface.
4. An LCD display control panel as in claim 1, wherein, The LCD display control panel also includes a power supply module, which is connected to the processing module and the LCD display buttons respectively.
5. An LCD display control panel as in claim 1, wherein, The LCD display control panel also includes a storage module, which is connected to the processing module.
6. An LCD display control panel as claimed in claim 5, wherein, The storage module and the processing module are connected via an SPI bus.
7. An LCD display control panel as in claim 1, wherein, The button body is a self-resetting button body.
8. An LCD display control panel as in claim 1, wherein, The LCD display control panel also includes an expansion interface, which is connected to the processing module.
9. A human-machine interaction device, characterized in that, It includes a host computer and an LCD display control panel as described in any one of claims 1-8, wherein the host computer and the processing module are connected through the communication interface.