Detection system of driving plates liquid crystal television and liquid crystal display

Abstract

The invention discloses a detection system of the driving plates of a liquid crystal television and a liquid crystal display. In the invention, a signal generator generates various signals and inputs the signals to a card to be tested; the card to be tested is the driving plate of the liquid crystal television or the liquid crystal display; an image signal acquisition part acquires the LVDS original signals or VGA and DVI original signals of the card to be tested directly to obtain image signals of channels, a sound acquisition part acquires the original sound signals of the channels, a voltage and current analogue value acquisition part acquires an on-board voltage and a current signal to compare the on-board voltage and the current signal with various standard sample data prestored in system processing software of a PC host computer in terms of image, sound, voltage and current signal to generate a test report and a test result; and the test report and the test result are transmitted to a client production management system through a serial port or a network to instruct the client in production without any extra detection device, and thus, the detection cost is reduced greatly.

Description

Technical field: [0001] The invention relates to the technical field of liquid crystal television and liquid crystal display detection, and more specifically to a liquid crystal television and liquid crystal display drive board detection system. Background technique: [0002] At present, when the LCD TV and the LCD driver board (also known as the main control board) are tested, the operator manually controls the remote control to switch the channel of the board to be tested. Then the image signal of each channel needs to be connected to the LCD panel The human eye is used to artificially judge whether the quality of the image output is up to standard. The sound signal is connected to the earphone to judge whether the sound quality is up to the standard by listening to the human ear, and a large number of testing instruments are needed to detect the voltage and current changes. All judgments are human-oriented Consciousness is used as the criterion. There is no uniformity in quali...

AI Technical Summary

Problems solved by technology

[0002] At present, when LCD TV and LCD driver board (also known as the main control board) are tested, the operator manually controls the remote control to switch the channel of the board to be tested. Then the image signal of each channel needs to be connected to the LCD panel Human eyes are used to judge whether the quality of the image output is up to the standard. The sound signal is connected to the earphone to judge whether the sound quality is up to the standard through human ear audition, and a large number of testing instruments are needed to detect the change of voltage and current. All judgments are made by humans. Consciousness is used as the judgment standard, quality control is not uniform, and reliability and stability are not guaranteed. Therefore, the traditional detection method requires the full intervention of the operator in the testing process to complete, and the detection takes a long time, which not only leads to A lot of time, manpower, and material resources are consumed, and the testing efficiency is very low. The testing station has become a serious bottleneck in the output of manufacturers in this industry.

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