CN212723976U

CN212723976U - Highly-integrated serial port screen

Info

Publication number: CN212723976U
Application number: CN202021121020.1U
Authority: CN
Inventors: 王洪
Original assignee: Hunan Dwin Technology Co ltd
Current assignee: Hunan Dwin Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-03-16
Anticipated expiration: 2030-06-16

Abstract

The utility model relates to a highly integrated serial port screen, which comprises a liquid crystal screen and a FPC, wherein the FPC comprises a FLASH, a MCU, a power circuit, a communication circuit and a touch detection circuit; the liquid crystal screen is connected with the FPC; the FLASH is connected with the MCU; the communication circuit is connected with the MCU; the power circuit is connected with the MCU; the touch detection is connected with the MCU; the FLASH, the MCU, the communication circuit, the power circuit and the touch detection are integrated on the FPC; the FPCs are integrated on the liquid crystal screen; the utility model provides a simple structure, circuit are simple, stable performance, high reliability, low cost, highly integrated serial ports screen that the commonality is strong.

Description

Highly-integrated serial port screen

Technical Field

The utility model relates to the technical field of integrated circuits, concretely relates to high integration serial ports screen.

Background

With the development of industrial agriculture and scientific technology, the living standard of people is continuously improved, no matter the automatic equipment or the intelligent equipment is more and more widely applied to the daily life of people, most of people and the automatic equipment or the intelligent equipment have a human-computer interaction function, and the human-computer interaction function is widely used due to the fact that the combination and collocation mode of the color liquid crystal screen and the touch interaction has very excellent human-computer interaction use experience.

However, in the implementation of the man-machine interaction scheme of the specific automation equipment and the intelligent equipment, since the color liquid crystal screen is not only extremely complex in driving scheme, but also needs to integrate the touch technology in the man-machine interaction technology, it is a very challenging research and development work for research personnel.

In view of this scenario, "serial port screen" is an excellent solution among the solutions to this problem on the existing market, and the serial port screen not only directly solves the complicated liquid crystal screen driving scheme, but also integrates the touch recognition technology, and more pleasantly the serial port screen has also made simple and easy development, can use host computer software to directly develop complicated human-computer interaction engineering, has only a simple communication interface for the next computer equipment, and is very convenient for developers.

Indeed, the serial port screen device solves the problem of human-computer interaction development of developers, but is a very complex electronic device for complex liquid crystal display driving and touch recognition function. The complexity of the liquid crystal display screen is not only reflected in the complexity of a driving circuit, but also reflected in the extremely high requirement of a serial port screen production process, the liquid crystal display screen is a highly complex assembly, and the liquid crystal display screen has numerous internal circuits, very precise wiring, high process requirement and low yield all the time; in addition, the serial port screen covers a plurality of sub-function circuits, so that the circuit cost is greatly increased; finally, the serial port screen is complex in structure and large in size due to the complexity of the serial port screen, and the whole size is difficult to control.

Therefore, a serial port screen with simple structure, high production yield and small volume is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high integrated serial ports screen that simple structure, circuit are simple, stable performance, high reliability, low cost, commonality are strong is provided.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a highly integrated serial port screen comprises a liquid crystal screen and an FPC, wherein the FPC comprises a FLASH, an MCU, a power circuit, a communication circuit and a touch detection circuit; the liquid crystal screen is connected with the FPC; the FLASH is connected with the MCU; the communication circuit is connected with the MCU; the power circuit is connected with the MCU; the touch detection is connected with the MCU; the FLASH, the MCU, the communication circuit, the power circuit and the touch detection are integrated on the FPC; the FPC is integrated on the liquid crystal screen.

The liquid crystal screen refers to a color liquid crystal screen;

further, the color liquid crystal screen is an RGB interface liquid crystal screen, an EDP interface liquid crystal screen, an LVDS interface liquid crystal screen or an MIPI interface liquid crystal screen;

the beneficial effects of doing so are: the interface form of the liquid crystal screen is not limited, the compatible range can be expanded, and the serial port screen is not limited by the interface form of the liquid crystal screen.

The FPC is a flexible PCB, not a rigid PCB, and special components can be mounted on the flexible PCB in a manner of paster or welding;

furthermore, electronic components can be distributed on two sides of the FPC;

the beneficial effects of doing so are: the cost is reduced by a wide margin, the price of FPC is reduced very much compared with that of rigid PCB, and secondly, FPC is easy to bend and is easy to shape structurally.

The FLASH is an electronic storage device for storing data;

further, the FLASH can store a module device of human-computer interaction prefabricated information;

further, the FLASH can store a module device for generating data information by human-computer interaction;

further, the FLASH is NOR FLASH or NAND FLASH;

the beneficial effects of doing so are: the requirement of the man-machine interaction serial port screen on data storage can be improved through the storage function of the FLASH.

The MCU is a core CPU of the serial port screen and is responsible for detecting and processing all data of the serial port screen;

further, the MCU is an 8051 architecture CPU, an ARM architecture CPU, or an FPGA architecture CPU;

further, the MCU is responsible for driving the liquid crystal display, processing human-computer interaction system software, reading and writing FLASH data, touch detection and system communication;

the beneficial effects of doing so are: the functional module is combined with the liquid crystal screen and the touch screen through the calculation and processing capacity of the MCU to realize a complete human-computer interaction function.

The power supply circuit is a power supply conversion circuit of the whole serial port screen and is responsible for converting an input total power supply into different voltages and currents required by each module.

Furthermore, the power supply circuit comprises all power supply requirements required by the FLASH, the MCU, the communication circuit, the detection circuit and the liquid crystal display;

furthermore, the power supply circuit comprises power supply functions of voltage reduction, voltage boosting, current limiting and the like;

the beneficial effects of doing so are: the power supply circuit meets all different power supply requirements required in the serial port screen, so that the serial port screen can work normally.

The communication circuit is responsible for all communication functions in the serial port screen;

further, the communication circuit is responsible for the communication function between the MCU and the liquid crystal display;

further, the communication circuit is responsible for the communication function between the MCU and the FLASH;

further, the communication circuit is responsible for the communication function between the MCU and the touch detection;

furthermore, the communication circuit is responsible for the function of communication between the MCU and the outside;

the beneficial effects of doing so are: the serial port screen is properly used for both internal communication and external communication through the communication circuit, and all independent functional modules are effectively connected together through the communication circuit.

The touch detection is the detection of human gesture recognition in a serial port screen of the human-computer interaction system;

further, the touch detection may support resistive touch detection;

further, the touch detection may support capacitive touch detection;

further, the touch detection may support infrared touch detection;

the beneficial effects of doing so are: through multiple touch identification modes, different touch identification modes can be selected in different application scenes, and the application range of the serial port screen is expanded.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, a highly integrated serial port screen is composed of two major parts, namely a liquid crystal screen and an FPC;

further, the liquid crystal display and the FPC are electrically connected through a binding technology;

further, the FPC contains gold fingers;

further, the FPC can be connected with lower computer equipment through a golden finger;

furthermore, the golden finger and the lower computer can be connected through an FPC socket;

further, the FPC comprises a driving signal of the liquid crystal display and a power supply;

the beneficial effects of doing so are: the liquid crystal display screen can be prevented from being connected with the rigid PCB, and components are welded on the PCB. The device and the liquid crystal screen can be directly connected together through the FPC, so that the problem of abnormal electrical connection caused by poor connector assembly is solved. Meanwhile, due to the sealing property of the binding technology, the electrical isolation performance can be improved.

The FPC comprises a FLASH, an MCU, a communication circuit, a power circuit and touch detection, so that necessary functional devices of a serial port screen are included on the FPC; the FPC provides a welding and fixing substrate for each device; the FPC provides connection liquid crystal display, components and parts, and external interfaces.

The beneficial effects of doing so are: FPC provides the platform of connecting LCD screen, components and parts, external interface, does like this and compares in traditional rigid PCB in the past, can accomplish the volume littleer, and plasticity is strong, can directly link up the function of LCD screen and external socket again.

As shown in fig. 1, the MCU is connected to the FLASH, and the MCU can directly perform data read/write operations with the FLASH;

further, the MCU is connected with the communication circuit;

the beneficial effects of doing so are: the MCU links the internal communication and the external communication through the communication circuit; therefore, the MCU can receive the external communication instruction of the serial port screen and process the internal communication information of the serial port screen.

Further, the MCU is connected with the touch detection;

the beneficial effects of doing so are: the MCU can directly detect gesture actions of human-computer interaction; and corresponding liquid crystal display changes or communication feedback can be made after gesture actions of human-computer interaction are recognized.

Further, the MCU is connected with a power circuit;

the beneficial effects of doing so are: the power supply circuit can directly supply power to the MCU, so that the MCU can stably work.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A highly integrated serial port screen is characterized by comprising a liquid crystal screen and an FPC, wherein the FPC integrates FLASH, an MCU, a communication circuit, a power circuit and touch detection; the liquid crystal display is connected with the FPC, the FLASH is connected with the MCU, the communication circuit is connected with the MCU, the power circuit is connected with the MCU, and the touch detection is connected with the MCU.

2. The highly-integrated serial port screen according to claim 1, wherein the liquid crystal screen is an RGB interface liquid crystal screen, an EDP interface liquid crystal screen, an LVDS interface liquid crystal screen or an MIPI interface liquid crystal screen.

3. The highly integrated serial port screen according to claim 1, wherein the FPC, i.e. the flexible PCB, is mounted with a characteristic component; meanwhile, electronic components can be distributed on two sides of the FPC.

4. The highly integrated serial port screen of claim 1, wherein the FLASH is an electronic storage device for storing data, the FLASH is a module device capable of storing human-computer interaction pre-information and human-computer interaction generation data information, and the FLASH is NOR FLASH or NAND FLASH.

5. The highly integrated serial port screen according to claim 1, wherein the MCU is a core CPU of the serial port screen, and is responsible for all data detection and processing of the serial port screen, driving of the liquid crystal screen, man-machine interaction system software processing, FLASH data reading and writing, touch detection, and system communication, and the MCU is an 8051-architecture CPU, an ARM-architecture CPU, or an FPGA-architecture CPU.

6. The highly integrated serial port screen according to claim 1, wherein the power circuit is a power conversion circuit of the whole serial port screen and is responsible for converting an input total power into different voltages and currents required by each module, the power circuit comprises all power requirements required by a FLASH, an MCU, a communication circuit, a detection circuit and a liquid crystal screen, and the power circuit comprises functions of a voltage reduction power supply, a voltage boosting power supply and a current limiting power supply.

7. The highly integrated serial port screen according to claim 1, wherein the communication circuit is responsible for all communication functions inside the serial port screen, and the communication circuit is responsible for communication functions between the MCU and the liquid crystal screen, the FLASH, the touch detection and the outside.

8. The highly integrated serial port screen according to claim 1, wherein the touch detection is detection of gesture recognition of an operator in the serial port screen of the human-computer interaction system; the touch detection may support resistive touch detection, capacitive touch detection, infrared touch detection.