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Regulating and testing method and system for ShortingBar output precision of OLED

A test method and test system technology, applied to instruments, static indicators, etc., can solve problems such as OLED glass screen abnormalities, achieve low cost, improve voltage output accuracy, and improve data acquisition efficiency

Active Publication Date: 2014-11-19
WUHAN JINGCE ELECTRONICS GRP CO LTD
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  • Application Information

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a ShortingBar output accuracy calibration test method and system for OLEDs, which can solve the problem of abnormal OLED glass screen due to the low output accuracy of the ShortingBar voltage, and the calibration accuracy is high, Can greatly improve test efficiency

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  • Regulating and testing method and system for ShortingBar output precision of OLED
  • Regulating and testing method and system for ShortingBar output precision of OLED
  • Regulating and testing method and system for ShortingBar output precision of OLED

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as figure 1 As shown, the ShortingBar output accuracy calibration test system of the OLED of the present invention includes a ShortingBar1, a PC 2, an acquisition board 3 and a voltage monitoring module 4. The input end of ShortingBar1 is connected with PC 2, and each output end of ShortingBar1 is respectively connected with a branch of acquisition board 3 in one-to-one correspondence, and all branches of acquisition board 3 are connected with the input end of voltage monitoring module 4, and the voltage monitoring module The output terminal of 4 is connected with the PC 2, and the PC 2 sends a start signal and an end signal to the acquisition board 3, and records the voltage value collected by the voltage monitoring module 4, and the acquisition board 3 sequentially controls each branch according to the start signal of th...

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Abstract

The invention discloses a regulating and testing method and system for ShortingBar output precision of an OLED. The method comprises the following steps: regulating an acquired practical voltage value of a ShortingBar output end according to the least-square fitting straight line method and then outputting the result, so that the problem of abnormal OLED glass pictures caused by low ShortingBar voltage output precision is solved; the calibration accuracy is high; the testing efficiency can be improved greatly. The system is conducted with all output ends of a ShortingBar through a collection board in sequence to collect voltage values, and is automatically switched to be conducted with one output end I after the voltage value of an output end II before the output end I is collected, so that a PC can obtain practical voltage values and regulating voltage values of the ShortingBar. The system can be expanded to 48 I / O interfaces.

Description

technical field [0001] The invention belongs to the technical field of OLED test equipment, and specifically refers to a method and system for calibrating and testing the output precision of a ShortingBar of an OLED. Background technique [0002] ShortingBar (probe short-connected signal tester) is an analog signal generating device that can generate high-voltage waveform signals. In the OLED panel production process, it can be used to detect whether there are bad abnormalities such as VLINE, HLINE, and DOT on the OLED panel. [0003] The voltage output accuracy of the ShortingBar needs to be calibrated, and the error of the output voltage of the ShortingBar without calibration can reach 500mv. ShortingBar voltage output accuracy is not high, which will lead to problems such as abnormal OLED glass screen. At present, the ShortingBar voltage output collection process is manual, using a digital multimeter to manually collect the interface output value of the voltage of each c...

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Application Information

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IPC IPC(8): G09G3/00G09G3/32G09G3/3208
Inventor 彭骞徐锐陈凯沈亚非
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD