CN-121999699-A - Multifunctional display conversion plate module

Abstract

The invention relates to a multi-port multi-type multifunctional display conversion board module with power supply control, which comprises an EDP, an LVDS and a DP display port multifunctional display conversion board, wherein the conversion board is provided with 3 display ports, namely 1-way EDP, 1-way LVDS and 1-way VGA, which are used for being connected with a host computer main board display controller, 6 display ports, namely 2-way LVDS, 2-way EDP and 1-way DP, which are used for being connected with different types of LCD screens, and each of the 6 downlink ports is provided with an independent power switch control and a working state indicator lamp. The module is powered by external direct current 12V, does not need additional driving support, and meets EDP and LVDS and DP and VGA display specifications. The multifunctional display conversion board module can conveniently and efficiently realize the conversion function of up to 3 types of 6 display ports, each port has an independent power supply control function, and the multifunctional display conversion board module is suitable for the effective collocation of LCD screens of multiple types of LCD display interfaces and the application occasions in the retail field. The secondary development cost is reduced, and the cost performance of the product is improved.

Inventors

• Request for anonymity

Assignees

• 航信德利信息系统(上海)有限公司

Dates

Publication Date

20260508

Application Date

20241107

Claims (3)

1. 1. A multifunctional display conversion board module is characterized in that the module is connected with an upper computer controller through a 3-road standard plug integrating an uplink EDP, an LVDS and a VGA, integrates 6 downlink standard socket ports of a downlink 2-way LVDS, a 2-way EDP and a 2-way DP, and is used for connecting an LCD display screen of an LVDS interface, a DP interface and an EDP interface.
2. 2. The multifunctional display conversion board module of claim 1, wherein the 1-way upstream EDP is used for converting 1-way LVDS and 1-way DP ports through the integrated conversion chip and the multiplexer chip, the independent power switch control function can be instructed by the upper computer, the 1-way upstream LVDS is used for converting 1-way EDP and 1-way DP ports through the integrated conversion chip and the multiplexer chip, the independent power switch control function can be instructed by the upper computer, the 1-way upstream VGA is used for converting 1-way EDP and 1-way LVDS ports through the integrated conversion chip and the multiplexer chip, and the independent power switch control function can be instructed by the upper computer.
3. 3. The multi-purpose display switch board module of claim 2, wherein each port has an independent device operating status indicator light, a device connection is normal, a green light is on, a device connection is abnormal, and a red light is on.

Description

Multifunctional display conversion plate module Technical Field The invention relates to a multifunctional conversion module of a 2-port EDP and 2-port LVDS and 2-port DP display interface with controllable power supply, which has a controllable port power supply mechanism, and can be applied to a retail commercial cash register. Background In the multifunctional display conversion board module, eDP (Embedded DisplayPort) is a standard protocol in the technical field of digital display, the eDP protocol is an expansion of an embedded direction architecture and a protocol applied to DP (Display Port), the eDP has high bandwidth and good integration, LVDS (Low-Voltage DIFFERENTIAL SIGNALING) is a Low-Voltage differential signal technology, is commonly used for short-distance and Low-rate connection, such as communication among internal components of a notebook computer, and the DP display protocol (DisplayPort) is a digital video interface standard ‌ standardized by VESA (Video Electronics Standards Association), and aims to replace the traditional VGA, DVI and other analog video interfaces, provide higher video quality and larger bandwidth, support configuration of higher resolution, faster refresh rate and richer color depth ‌, support configuration of multiple resolution and refresh rate, have relatively Low bandwidth requirements of signal transmission, and are suitable for Low-power consumption and cost sensitive application scenes. The common LVDS display interfaces of the LCD screen in the market are most, aiming at the high-definition LCD EDP display interfaces, meanwhile, the different sizes of the LCD screen display interfaces are most, such as 15 inches, 15.6 inches, 12.1 inches, 11.6 inches, 10.1 inches, 9.7 inches and the like, the unified display interfaces of the LCDs with different sizes are difficult to select, meanwhile, the common main board display interfaces of the main board manufacturer at the upstream are 1-3 paths, the main display ports and the auxiliary display ports are fixed, the LCD screen with multiple display configurations is difficult to effectively match, the common computers, notebook computers and the like in the market are mostly defaulted to a single screen display function, the terminal products in the retail field are double screens, and the 1-section terminal is required to be selectively provided with multiple display functions according to different application scenes and client requirements, and the LCD screen with different sizes is matched. In order to integrally solve the problems, the invention provides a multifunctional display conversion board module, which can realize the butt joint of LCD screens with multiple types of display ports by using the multifunctional display conversion board module, and meanwhile, each display port is provided with a power control function, and the ports or the display screens which are in an unoperated state can cut off power supply, so that the energy consumption is reduced. The cost performance of the whole product is improved in terms of cost from two aspects of convenience in combining and matching different types of display interface LCDs and energy consumption reduction of equipment, and different application scenes are realized, so that different display screens with different sizes can be conveniently matched and combined. Disclosure of Invention The circuit principle of the invention is based on a multiplexer chip, a display conversion chip, a serial port control chip and a power supply control chip, the multifunctional display conversion function of 2 EDP ports, 2 LVDS ports and 2 DP ports is realized, the external power supply of the module adopts a direct current 12V power supply, the direct current 12V power supply converts EDP, LVDS, DP V power supplies required by the display ports of the module, the direct current 12V power supply converts the direct current 5V power supplies required by the chips, and according to a schematic diagram, the module PCBA is realized by a 4-layer board, and the external dimension length and the width are 150mm by 50mm by 20mm. The upstream EDP port adopts an EDP standard connector for connecting with the display control port of the upper computer, 1 LVDS standard plug is used for connecting with the downstream LVDS LCD screen, 1 DP standard socket is used for connecting with the downstream DP LCD screen, and the two downstream LVDS and DP are selected by plug-and-play LCD screen. The uplink LVDS port adopts an LVDS standard plug for connecting with an upper computer display control port, 1 EDP standard plug is used for connecting with a downlink EDP display interface LCD screen, 1 DP standard socket is used for connecting with a downlink DP display interface screen, and the two downlink EDPs and DPs are selected through a plug-and-play LCD screen. The uplink VGA port adopts a VGA standard plug for connecting with the display control port of the upper computer, 1 EDP standard plug is