CN-224216786-U - Lighting testing device based on LED display screen

Abstract

The utility model provides a lighting test device based on an LED display screen, which comprises a substrate, a key module, a receiving card and a test interface, wherein the key module and the receiving card are arranged on the substrate, the test interface can be in driving connection with a driving interface of an LED lamp panel to be tested, the receiving card comprises a field programmable logic gate array and a singlechip, the field programmable logic gate array is connected with the test interface, the singlechip is in communication connection with the field programmable logic gate array, the singlechip is also in communication connection with the key module, and the key module comprises a color test function key, a gray test function key and a scanning test function key and is correspondingly connected to corresponding function pins of the singlechip one by one. The LED display screen-based lighting test device provided by the utility model has the advantages that the functional keys are arranged separately, the corresponding test items can be randomly selected and directly switched, the operation is convenient, the test efficiency of problem detection and missing detection rechecking can be effectively improved, and the production efficiency is improved.

Inventors

• FENG SHANGBIN
• LAI YUMENG

Assignees

• 江西省东都智能装备科技有限公司

Dates

Publication Date

20260508

Application Date

20250319

Claims (9)

1. 1. The lighting test device based on the LED display screen is used for lighting test of an LED lamp panel and is characterized by comprising a substrate, a key module, a receiving card and a test interface, wherein the key module and the receiving card are arranged on the substrate, the test interface can be in driving connection with a driving interface of the LED lamp panel to be tested, The receiving card comprises a field programmable gate array and a singlechip, the field programmable gate array is connected with the test interface, the singlechip is in communication connection with the field programmable gate array, and the singlechip is also in communication connection with the key module; The key module comprises a color test function key, a gray test function key and a scanning test function key, and is connected to corresponding function pins of the singlechip in a one-to-one correspondence manner.
2. 2. The lighting test device based on the LED display screen according to claim 1, wherein a shaping circuit and an amplifying circuit are further sequentially connected in series between the key module and the singlechip.
3. 3. The LED display screen based lighting test device of claim 1 or 2, wherein the keys in the key module comprise jog keys.
4. 4. The LED display screen based lighting test device of claim 1, wherein the color test function keys comprise a red function key, a green function key, a blue function key, and a white function key.
5. 5. The LED display screen based lighting test device of claim 1, wherein the gray scale test function keys comprise at least two gray scale function keys having different gray scales.
6. 6. The LED display screen based lighting test device of claim 1, wherein the scan test function keys comprise a sweep function key, a tilt left function key, and a tilt right function key.
7. 7. The lighting test device based on the LED display screen of claim 1, wherein the keys in the key module are arranged in single columns at intervals.
8. 8. The lighting test device based on the LED display screen according to claim 1, wherein each functional pin, which is connected with each key of the key module in a one-to-one correspondence manner, of the single chip microcomputer is further connected to a hot-pluggable interface, and is connected with each key of the key module in a one-to-one correspondence manner through the hot-pluggable interface.
9. 9. The LED display screen based lighting test device of claim 1, wherein the key module comprises a hot pluggable socket, and each key of the key module is plugged in a corresponding position of the hot pluggable socket in a one-to-one correspondence manner.

Description

Lighting testing device based on LED display screen Technical Field The utility model relates to the technical field of display screen testing, in particular to a lighting testing device based on an LED display screen. Background In order to ensure the reliability of the display function of the LED (LIGHT EMITTING diode) display screen, the LED display screen needs to be subjected to a lighting test to test whether the functions in various use states are normal. In the prior art, a self-test key is usually LED out through a receiving card, and the self-test key is repeatedly triggered, so that the LED display can be circularly switched among preset test items, and the receiving card is used for controlling the LED display to be circularly switched among preset display pictures such as red, green, blue, white, oblique scanning and the like. However, the conventional key switching mode can only perform unidirectional circulation, for example, after switching from a red picture to oblique scanning display, if the key is required to be pressed repeatedly according to a fixed sequence to return to the red picture, the complete switching circulation is completed, when a certain item needs to be retested to check the problem, the circulation is required to be entered, the selection is realized after switching to the corresponding item one by one, a great amount of time is consumed in the process, the working efficiency of a production line is seriously reduced, misoperation of triggering the key for many times easily occurs, missed detection is caused, and when missed detection is caused, the circulation retesting is required to be re-entered, and the test efficiency is low. Disclosure of utility model Based on the above, the utility model aims to provide a lighting test device based on an LED display screen, which solves the problems that the lighting test device in the prior art cannot flexibly select test items, and the problems of inconvenient operation of troubleshooting and missed re-inspection and low production efficiency are caused. The utility model provides a lighting test device based on an LED display screen, which is used for lighting test of an LED lamp panel, and comprises a substrate, a key module, a receiving card and a test interface, wherein the key module and the receiving card are arranged on the substrate, the test interface can be in driving connection with a driving interface of the LED lamp panel to be tested, The receiving card comprises a field programmable gate array and a singlechip, the field programmable gate array is connected with the test interface, the singlechip is in communication connection with the field programmable gate array, and the singlechip is also in communication connection with the key module; The key module comprises a color test function key, a gray test function key and a scanning test function key, and is connected to corresponding function pins of the singlechip in a one-to-one correspondence manner. Optionally, a shaping circuit and an amplifying circuit are sequentially connected in series between the key module and the singlechip. Optionally, the keys in the key module include jog keys. Optionally, the color test function keys include a red function key, a green function key, a blue function key, and a white function key. Optionally, the gray test function key comprises at least two gray function keys with different gray scales. Optionally, the scan test function key includes a horizontal scan function key, a vertical scan function key, a left diagonal function key, and a right diagonal function key. Optionally, each key in the key module is arranged in a single row at intervals. Optionally, each functional pin that the singlechip is connected with each button of button module one-to-one is still connected to but hot plug interface to but through hot plug interface with each button of button module one-to-one is connected. Optionally, the key module comprises a hot-pluggable socket, and each key of the key module is plugged in a corresponding position of the hot-pluggable socket in a one-to-one correspondence manner. The utility model provides a lighting test device based on an LED display screen, which comprises a substrate, a key module, a receiving card and a test interface, wherein the key module and the receiving card are arranged on the substrate, the test interface can be in driving connection with a driving interface of an LED lamp panel to be tested, the receiving card comprises a field programmable logic gate array and a singlechip, the field programmable logic gate array is connected with the test interface, the singlechip is in communication connection with the field programmable logic gate array, the singlechip is also in communication connection with the key module, and the key module comprises color test function keys, gray test function keys and scanning test function keys and is correspondingly connected to corresponding function pins of th