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LCM (liquid crystal module) electric measurement function expansion device

An expansion device and electric measurement technology, which is applied in the direction of measuring devices, measuring electricity, measuring electric variables, etc., can solve the problems of declining customer evaluation, inability to monitor in real time, waste of materials and man-hours, etc.

Inactive Publication Date: 2015-02-18
HUIZHOU TRUST IND
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Problems solved by technology

[0003] However, the existing LCM screen display signal source can only drive the LCM display screen, but cannot monitor the electrical indicators of the LCM in real time, such as identification voltage, data synchronization signal, backlight synchronization signal, consumption / backlight current, etc., resulting in Some products with normal screens but abnormal electrical indicators cannot be detected in time, resulting in waste of materials and man-hours, and a decline in customer evaluation

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  • LCM (liquid crystal module) electric measurement function expansion device

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Embodiment Construction

[0015] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] At present, there are various LCM products on the market, such as mobile phones, tablet computers and televisions, etc., all of which use liquid crystal display modules LCM. In order to prevent LCM products with abnormal electrical indicators from flowing into the market, the It is necessary to measure the electrical indicators of the LCM and determine whether they are abnormal. The electrical indicators described in the present invention refer to the identification voltage, data synchronization signal, backlight synchronization signal, consumption current and backlight current of the LCM respectively, and they have the following definitions:

[0017] Identification voltage: It is used for LCM products to automatically identify whether the LCM model connected to it is correct; there are usually two spec...

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Abstract

The invention provides an LCM (liquid crystal module) electric measurement function expansion device. The LCM electric measurement function expansion device comprises a feedback signal processor, and a transfer base plate and a relay which are connected with the feedback signal processor, wherein the transfer base plate is connected with an LCM image display signal source and an LCM to be electrically measured, the LCM image display signal source is used to generate an image display drive signal and send the image display drive signal to the LCM to be electrically measured, the LCM to be electrically measured is used to receive the image display drive signal and send all electric signal parameters to the transfer base plate, the transfer base plate converts an arrangement mode of all the different electric signal parameters into a unified arrangement mode, and then sends all the electric signal parameters to the feedback signal processor, and the feedback signal processor detects the electric signal parameters and judges whether the electric signal parameters are abnormal. The LCM electric measurement function expansion device can monitor various electrical indexes of the LCM while the LCM is being electrically measured, automatically interrupts LCM measurement and sends an audible and visual alarm when abnormality occurs, and prevents abnormal products from flowing out.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to an LCM (liquid crystal display module) electrical measurement function expansion device. Background technique [0002] LCM electrical testing refers to displaying the signal source through the LCM screen, driving the LCM to display various screens, employees judge whether the LCD display function is normal or not according to the established inspection standards on different screens, and prevent defective products from flowing out to the client. [0003] However, the existing LCM screen display signal source can only drive the LCM display screen, but cannot monitor the electrical indicators of the LCM in real time, such as identification voltage, data synchronization signal, backlight synchronization signal, consumption / backlight current, etc., resulting in Some products with normal screens but abnormal electrical indicators could not be detected in time, resulting in waste ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G09G3/00
Inventor 艾君杰乔启军王启超王井权
Owner HUIZHOU TRUST IND
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