CN214410740U

CN214410740U - LCD display module is with surveying test panel based on FPGA low-cost MIPI interface

Info

Publication number: CN214410740U
Application number: CN202022722204.XU
Authority: CN
Inventors: 王亚星; 叶少芳
Original assignee: Guangxi Xianpei Photoelectric Technology Co ltd
Current assignee: Guangxi Xianpei Photoelectric Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-10-15
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a LCD display module is with surveying test panel based on FPGA low-cost MIPI interface, including surveying test panel body, survey test panel body and include power connection, PCB board, set up test subassembly and test connector on the PCB board, the test subassembly includes power conversion module, LCD drive circuit module, stabiliser module, boost circuit module and FPGA test chip in a poor light, power conversion module passes through electric wire electric connection with the power connection, LCD drive circuit module, stabiliser module and the boost circuit module in a poor light respectively with power conversion module electric connection, FPGA test chip and stabiliser module electric connection, test connector respectively with LCD drive circuit module, boost circuit module and FPGA test chip electric connection in a poor light. The utility model relates to a rationally, test convenient and fast and test cost are low, are favorable to the popularization and application of marketization.

Description

LCD display module is with surveying test panel based on FPGA low-cost MIPI interface

Technical Field

The utility model relates to a computer detects technical field, concretely relates to LCD display module assembly is with surveying test panel based on FPGA low-cost MIPI interface.

Background

With the gradual transition of consumer electronic display modules to high resolution, the LCD display modules of MIPI interfaces have FHD + (1080X2340), WQHD (1440X2560) high resolution products, and the LCD module test boxes of WQHD (1440X2560) high resolution currently have high hardware cost, and the price on sale generally exceeds 2000 yuan, and in addition, the LCD mobile phone modules with high refresh rate (90H,120H,144H refresh rate) based on MIPI interface compression format (vesacdsc) have been widely popularized, and at present, few test boxes support such tests, the production test of factory display modules, and a large number of test boxes are needed in the aging test stage, so that the production test cost of factories is greatly increased, and the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provide a reasonable in design, test convenient and fast and low in test cost's LCD display module assembly is with surveying test panel based on FPGA low-cost MIPI interface.

The utility model adopts the following technical scheme:

the utility model provides a LCD display module is with surveying test panel based on FPGA low-cost MIPI interface, includes surveys the test panel body, survey the test panel body and include power connection, PCB board, set up test component and test connector on the PCB board, test component includes power conversion module, LCD drive circuit module, stabiliser module, boost circuit module and FPGA test chip in a poor light, power conversion module passes through electric wire electric connection with the power connection, LCD drive circuit module, stabiliser module and the boost circuit module in a poor light respectively with power conversion module electric connection, FPGA test chip and stabiliser module electric connection, test connector respectively with LCD drive circuit module, boost circuit module and FPGA test chip electric connection in a poor light.

As a preferred technical scheme of the utility model, the relative both ends tip of PCB board is fixed the cover respectively and is equipped with the cutting ferrule, be equipped with a curved preformed groove on the side that deviates from the PCB board on the cutting ferrule.

As an optimized technical scheme of the utility model, power connection is the Micro-USB connects.

As an optimized technical scheme of the utility model, FPGA test chip adopts the test chip that the model is high cloud GW1 NSR-4.

The utility model has the advantages that:

the utility model relates to a rationally, test convenient and fast and test cost are low, wherein adopt the model to test for the FPGA test chip of high cloud GW1NSR-4, it is little to have a package size, and the work low power dissipation, and supply circuit is simple, can directly support the MIPI interface to test, and FPGA chip package size only has 4.2MMX4.2MM simultaneously, can be effectual saving PCB's manufacturing cost when preparing.

Drawings

FIG. 1 is a schematic structural view of a test board body according to the present invention;

FIG. 2 is a schematic diagram of the system module connection of the test board body according to the present invention;

the symbols in the drawings illustrate that:

power connection 1, PCB board 2, test component 3, test connection head 4, cutting ferrule 5, preformed groove 6.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a test board for an LCD display module based on an FPGA low-cost MIPI interface includes a test board body, the test board body includes a power supply connector 1, a PCB 2, and a test component 3 and a test connector 4 disposed on the PCB 2, the test component includes a power supply conversion module, an LCD driving circuit module, a voltage stabilizer module, a backlight boost circuit module and an FPGA test chip, the power supply conversion module is electrically connected with the power supply connector 1 through an electric wire, the LCD driving circuit module, the voltage stabilizer module and the backlight boost circuit module are respectively electrically connected with the power supply conversion module, the FPGA test chip is electrically connected with the voltage stabilizer module, and the test connector 4 is respectively electrically connected with the LCD driving circuit module, the backlight boost circuit module 6 and the FPGA test chip; when in use, the LCD display module is connected with an external power supply through the power connector 1 and is connected with the LCD display module to be tested through the testing connector 8.

Further, the fixed cover in relative both ends tip of PCB board 2 is equipped with cutting ferrule 5 respectively, be equipped with an curved preformed groove 6 on the cutting ferrule 5 side that deviates from PCB board 2, draw-in groove 5 and preformed groove 6 that set up can be convenient for snatch PCB board 2 in the use.

Further, in this embodiment, power connector 1 is a Micro-USB connector, FPGA test chip 7 adopts a test chip of which the model is "yun GW1 NSR-4", the test chip of "yun GW1 NSR-4" has ultra-low power consumption, the chip package size is only, ultra-low power consumption, the chip package size is only 4.2MMX4.2MM, and the MIPI soft core is provided, so that the MIPI interface can be directly supported, and the conventional MIPI test box does not need to output 24BITRGB through an ARM platform, and then the MIPI data is converted into MIPI data through SSD2828, so that an ARM chip and an SSD2828 chip of an intermediate conversion link and a power supply circuit corresponding to the two chips are omitted, and a large amount of cost can be remarkably saved.

Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. The utility model provides a LCD display module is with surveying test panel based on FPGA low-cost MIPI interface, includes surveys the test panel body, survey the test panel body and include power connection (1), PCB board (2), set up test subassembly (3) and test connector (4) on PCB board (2), test subassembly (3) are including power conversion module, LCD drive circuit module, stabiliser module, the boost circuit module in a poor light and FPGA test chip, power conversion module and power connection (1) pass through electric wire electric connection, LCD drive circuit module, stabiliser module and the boost circuit module in a poor light respectively with power conversion module electric connection, FPGA test chip and stabiliser module electric connection, test connector (4) respectively with LCD drive circuit module, the boost circuit module in a poor light and FPGA test chip electric connection.

2. The test board for the LCD display module based on the FPGA low-cost MIPI interface of claim 1, characterized in that: the PCB is characterized in that clamping sleeves (5) are respectively fixedly sleeved at the end parts of two opposite ends of the PCB (2), and an arc-shaped preformed groove (6) is formed in one side surface of each clamping sleeve (5) deviating from the PCB (2).

3. The test board for the LCD display module based on the FPGA low-cost MIPI interface of claim 1, characterized in that: the power connector (1) is a Micro-USB connector.

4. The test board for the LCD display module based on the FPGA low-cost MIPI interface of claim 1, characterized in that: the FPGA test chip adopts a test chip with the model of Gaoyun GW1 NSR-4.