COB liquid crystal screen module based on serial-parallel dual interface driving display
By introducing a dual-interface design (serial and parallel) into the COB LCD module and using a specific chip to implement protocol parsing, the problems of high R&D difficulty and poor compatibility caused by the single interface of traditional COB LCD modules are solved, achieving stable and efficient signal transmission and functional expansion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEYUAN SIBI ELECTRONICS
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional COB LCD modules only support a single interface type, which leads to high R&D difficulty, increased costs, and poor functional expandability and compatibility for customers when developing new products.
Design a COB LCD module based on serial and parallel dual-interface driving. Combine serial and parallel interface modules, and use APM32F072CBT6 chip and AIP31066L chip to implement UART/USB to LVDS protocol and 80/68 parallel interface timing analysis respectively to ensure signal transmission stability and compatibility.
It achieves stable and efficient signal transmission and interface compatibility, reducing the difficulty for customers to develop new products and improving functional scalability and compatibility.
Smart Images
Figure CN224342027U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of COB LCD screen module technology, and in particular to a COB LCD screen module based on serial and parallel dual-interface driving display. Background Technology
[0002] With the rapid development of electronic technology and the intensification of market competition, display modules are being used more and more widely in consumer electronics, industrial control, automotive electronics and other fields.
[0003] However, traditional COB LCD modules have significant limitations in interface design, typically supporting only a single interface type (such as serial or parallel interface modules). This presents customers with many challenges when developing new products and makes them inconvenient for practical use.
[0004] For example, customers need to choose the appropriate interface type according to different application scenarios, which increases the difficulty and cost of research and development; at the same time, the single interface design also limits the functional scalability and compatibility of the display module, making it difficult to meet the rapid growth of the market's demand for diversified displays. Utility Model Content
[0005] This utility model discloses a COB LCD screen module based on serial and parallel dual-interface driving display, which aims to solve the obvious limitations of traditional COB LCD screen modules in interface design, which usually only support a single interface type. This poses many challenges for customers when developing new products and makes them inconvenient for practical use.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A COB LCD module based on serial and parallel dual-interface driving display includes an aluminum housing and four COB LCD modules mounted on the top of the aluminum housing. The back of each COB LCD module is provided with a serial interface module and a parallel interface module. The inner wall of the aluminum housing is provided with a PCB board, and the top outer wall of the PCB board is provided with a first socket and a second socket. The first socket and the second socket are respectively adapted to the serial interface module and the parallel interface module.
[0008] In this solution, a serial and parallel interface module is set up to form a dual serial-parallel interface. Combined with the hardware circuit of the matching serial and parallel interface modules, it ensures stable and efficient signal transmission during the interface with the customer's main control area and during the functional testing and maintenance by technical personnel, thus solving the problem of poor compatibility of traditional interfaces.
[0009] In a preferred embodiment, the serial interface module supports UART / USB to LVDS protocol, and the parallel interface module supports 80 / 68 parallel interface timing parsing.
[0010] The serial interface module uses the APM32F072CBT6 chip as the core controller, with a built-in 128Kb memory, which allows customers to directly program data and control the LCD module. The circuit design optimizes the signal transmission path, reduces interference, and ensures the stability of serial communication.
[0011] The parallel interface module uses the AIP31066L chip to implement 80 / 68 parallel interface protocol parsing, supports high-speed data transmission and peripheral control, is compatible with mainstream industrial equipment interface standards, and maintains stable connection between serial and parallel interfaces.
[0012] As described above, a COB LCD module based on serial-parallel dual-interface driving display includes an aluminum housing and four COB LCD modules mounted on top of the aluminum housing. The back of each COB LCD module is provided with a serial interface module and a parallel interface module. A PCB board is provided on the inner wall of the aluminum housing, and a first socket and a second socket are provided on the top outer wall of the PCB board. The first socket and the second socket are respectively adapted to the serial interface module and the parallel interface module. The COB LCD module based on serial-parallel dual-interface driving display provided by this utility model effectively solves the technical problem of poor compatibility with traditional interfaces. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the installation structure of a COB LCD screen module based on serial and parallel dual-interface driving display proposed in this utility model.
[0014] Figure 2 This is a schematic diagram of the dual-interface mechanism of a COB LCD screen module based on serial and parallel dual-interface driving display proposed in this utility model.
[0015] Figure 3 This is a schematic diagram of the internal structure of an aluminum housing for a COB LCD screen module based on serial and parallel dual-interface driving display proposed in this utility model.
[0016] Figure 4 This invention presents a software algorithm flowchart for switching between serial and parallel dual interfaces in a COB LCD module driven by a dual serial and parallel interface.
[0017] In the attached diagram: 1. Aluminum housing; 2. COB LCD module; 3. Serial interface module; 4. Parallel interface module; 5. PCB board; 6. First socket; 7. Second socket. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0019] The COB LCD module based on serial and parallel dual-interface driving display disclosed in this utility model is mainly applied to scenarios where traditional COB LCD modules have obvious limitations in interface design, usually only supporting a single interface type. This poses many challenges for customers when developing new products and is inconvenient for practical use.
[0020] Reference Figure 1 , Figure 2 and Figure 3 A COB LCD screen module based on serial and parallel dual-interface driving display includes an aluminum housing 1 and four COB LCD modules 2 mounted on the top of the aluminum housing 1. The back of the COB LCD modules 2 is provided with a serial interface module 3 and a parallel interface module 4, respectively. The inner wall of the aluminum housing 1 is provided with a PCB board 5. The top outer wall of the PCB board 5 is provided with a first socket 6 and a second socket 7. The first socket 6 and the second socket 7 are respectively adapted to the serial interface module 3 and the parallel interface module 4.
[0021] Specifically, the serial interface module 3 and the parallel interface module 4 are configured to form a serial-parallel dual interface. Combined with the matching hardware circuits of the serial interface module and the parallel interface module 4, stable and efficient signal transmission can be achieved during the process of interfacing with the customer's main control area and during the functional testing and maintenance by technical personnel.
[0022] The COB LCD module 2 consists of a display screen and a housing, while the serial interface module 3 and the parallel interface module 4 are both located on the side of the housing away from the display screen.
[0023] Reference Figure 2 In a preferred embodiment, both the first socket 6 and the second socket 7 have equally spaced solder joints inside, and the serial interface module 3 has a single set of pins, while the parallel interface module 4 has a dense set of pins.
[0024] It should be noted that during the hard connection process between COB LCD module 2 and aluminum housing 1, the pin headers and solder points make corresponding contact.
[0025] Reference Figure 2In a preferred embodiment, the serial interface module 3 supports the UART / USB to LVDS protocol, and the parallel interface module 4 supports 80 / 68 parallel interface timing parsing.
[0026] Specifically, the serial interface module 3 uses the APM32F072CBT6 chip as the core controller, with a built-in 128Kb memory, supporting direct data programming by customers and control of the LCD module. The circuit design optimizes the signal transmission path, reduces interference, and ensures the stability of serial communication. In the parallel interface module 4, the AIP31066L chip is used to implement 80 / 68 parallel interface protocol parsing, supporting high-speed data transmission and peripheral control, and is compatible with mainstream industrial equipment interface standards. Overall, the connection stability of the serial and parallel dual interfaces is maintained.
[0027] Reference Figure 1 and Figure 3 In a preferred embodiment, the bottom inner wall of the aluminum housing 1 is provided with magnetic suction posts that are evenly distributed, and the bottom outer wall of the housing is provided with magnetic suction pads that are evenly distributed, with the magnetic suction posts and magnetic suction pads being compatible.
[0028] Specifically, during the installation of the COB LCD module 2, the corresponding serial interface module 3 and parallel interface module 4 need to rely on the corresponding magnetic adsorption of the magnetic pillars and magnetic pads to maintain a stable connection with the first socket 6 and the second socket 7, which also makes disassembly and assembly more convenient during maintenance.
[0029] Reference Figure 1 and Figure 3 In a preferred embodiment, the bottom inner wall of the aluminum housing 1 is provided with intersecting connecting strips, the PCB board 5 is located in the center of the aluminum housing 1, and the four corners of the top outer side of the PCB board 5 are provided with connecting groups, each connecting group consisting of a serial interface module 3 and a parallel interface module 4.
[0030] Specifically, when the four COB LCD modules 2 are installed on the aluminum housing 1, the serial interface module 3 and the parallel interface module 4 can be accurately connected to the first socket 6 and the second socket 7.
[0031] Working principle: When in use, the COB LCD module 2 is installed on the aluminum housing 1 with the cooperation of the magnetic pillar and the magnetic pad. During this process, the serial interface module 3 and the parallel interface module 4 on the outer shell are inserted into the first socket 6 and the second socket 7 respectively. The overall control process realizes the intelligent switching of serial and parallel dual interfaces through hardware circuits and software algorithms. In terms of hardware control, the APM32F072CBT6 controls the enable pin EN of the AIP31066L through SPI to dynamically switch the serial / parallel path.
[0032] Regarding software control, refer to Figure 4The implementation steps of the software algorithm flowchart.
[0033] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A COB liquid crystal display module based on serial-parallel dual-interface driving display, comprising an aluminum housing (1) and four COB liquid crystal modules (2) mounted on the top of the aluminum housing (1), characterized in that, The COB LCD module (2) has a serial interface module (3) and a parallel interface module (4) on its back side. The aluminum housing (1) has a PCB board (5) on its inner wall. The top outer wall of the PCB board (5) has a first socket (6) and a second socket (7). The first socket (6) and the second socket (7) are respectively adapted to the serial interface module (3) and the parallel interface module (4).
2. A COB LCD module based on serial-parallel dual-interface driving display according to claim 1, characterized in that, The COB LCD module (2) consists of a display screen and a housing. The serial interface module (3) and the parallel interface module (4) are both located on the side of the housing away from the display screen.
3. A COB LCD screen module based on serial-parallel dual-interface driving display according to claim 2, characterized in that, The first socket (6) and the second socket (7) are provided with solder joints that are evenly distributed inside, and the serial interface module (3) is provided with a single group of pins, and the parallel interface module (4) is provided with a dense group of pins.
4. A COB LCD screen module based on serial-parallel dual-interface driving display according to claim 3, characterized in that, The serial interface module (3) supports UART / USB to LVDS protocol, and the parallel interface module (4) supports 80 / 68 parallel interface timing parsing.
5. A COB LCD screen module based on serial-parallel dual-interface driving display according to claim 4, characterized in that, The bottom inner wall of the aluminum box base (1) is provided with magnetic suction columns that are evenly distributed, and the bottom outer wall of the outer shell is provided with magnetic suction pads that are evenly distributed. The magnetic suction columns and the magnetic suction pads are compatible with each other.
6. A COB LCD module based on serial-parallel dual-interface driving display according to claim 1, characterized in that, The bottom inner wall of the aluminum box base (1) is provided with intersecting connecting strips, and the PCB board (5) is located in the center of the aluminum box base (1).
7. A COB LCD screen module based on serial-parallel dual-interface driving display according to claim 6, characterized in that, The PCB board (5) has four connecting groups at the top outer corners, and each connecting group consists of a serial interface module (3) and a parallel interface module (4).