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Drive board test system and test method

The technology of a test system and test method, which is applied in the field of television, can solve the problems of high work intensity and low efficiency, and achieve the effect of improving test efficiency and reducing test work intensity

Active Publication Date: 2018-06-19
TCL KING ELECTRICAL APPLIANCES HUIZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The regional dimming driver board needs to be functionally tested during actual production, and then provided for use in the next process. The conventional method is to build a real test platform, directly light up the backlight, and test with human eyes. This test method is more intuitive to understand the working state of the driver board, which has high work intensity and low efficiency.

Method used

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  • Drive board test system and test method
  • Drive board test system and test method
  • Drive board test system and test method

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Embodiment Construction

[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0052] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the difference between components in a specific posture (as shown in the accompanying drawings). If the relative positional relationship, movement situation, etc. change, the directional indication will change accordingly.

[0053] In addition, the descriptions r...

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Abstract

The invention discloses a drive board test system and a test method. The drive board test system comprises a signal generator, an LED load, a current acquisition device and a control device. The control device sends a test instruction to the signal generator. The signal generator converts the received test instruction into a serial signal and outputs the serial signal to a drive board to be tested. The drive board to be tested drives the LED load to emit light according to the serial signal. The current acquisition device acquires the corresponding current of the LED load emitting light and feeds back the current to the control device. Based on the current, the control device determines whether the drive board to be tested passes the test. According to the technical scheme of the invention, the test efficiency of the drive board is improved.

Description

Technical field [0001] The invention relates to the technical field of televisions, in particular to a driving board test system and a test method. Background technique [0002] At present, with the rapid development of the TV industry, LED backlight technology is widely used due to its long life, energy saving, and convenient drive. Local Dimming is to divide the screen into several zones, such as 16 zones, 76 zones, 288 zones, 600 zones, etc. Generally, the more partitions and the finer the partitions, the better the dimming effect. In actual use, the brightness of each LED light is adjusted by providing SPI (Serial Peripheral Interface) signals to the area dimming through the motherboard. The driver board is then directly controlled after being demodulated by the regional dimming driver board. [0003] The area dimming driver board needs to be tested for functionality during actual production, and then provided to the next process for use. The conventional method is to build a...

Claims

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Application Information

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IPC IPC(8): G01R31/28
CPCG01R31/28
Inventor 马军李业生梁炎文
Owner TCL KING ELECTRICAL APPLIANCES HUIZHOU
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