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Blurred screen fault detection circuit board for displays

A fault detection circuit and display technology, which is applied in the direction of measuring electricity, measuring electrical variables, static indicators, etc., can solve the problems of inability to judge the cause of the fault, blurred fonts, and blurred screens of the display, so as to avoid aging failures, fonts, etc. Clear, boot-up speed-enhancing effects

Inactive Publication Date: 2016-07-20
王祖刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is another symptom of display blurred screen, mainly when the display is used for a long time, it is easy to appear gray screen and blurred fonts
When this phenomenon occurs, we cannot determine the cause of the failure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Display blurred screen fault detection circuit board is characterized in that it includes a board body, a test pressure head clamp, a contact member, a detection part and a fixing part, and the board body has an end connected to the detection part far away from the fixing part, and is connected to the The plates together form a storage chamber, the etching solution is stored in the storage chamber, the test indenter is clamped with a vertical press-down mechanism, and the liquid guide core is installed in the vertical press-down mechanism, which is directed into the storage chamber. Extending, an acquisition and simulation module is arranged on the fixed part, the acquisition and simulation module is connected to the embedded controller, and the contact member is electrically connected to a monitoring component for detecting current parameters of the circuit board.

[0013] Further, the etching solution is used to chemically react with the conductive layer to change the ...

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Abstract

The invention discloses a blurred screen fault detection circuit board for displays. The blurred screen fault detection circuit board comprises a board body, a test pressure head clamp, a contact member, a test section and a fixed part, wherein the board body has one end communicating with the test section and being far away from the fixed part, and the board body and the test section jointly form a receiving chamber for receiving etching solution. A vertical down-pressing mechanism is arranged on the test pressure head clamp, and a liquid guiding core is installed on the vertical down-pressing mechanism and extends in the receiving chamber. An acquisition and simulation module is arranged on the fixing part and connected with an embedded controller, and a monitoring assembly is electrically connected with the contact member and used for detecting the current parameters of the circuit board. The blurred screen fault detection circuit board prevents aging failure of capacitors in a display, increases starting speed and screen brightness, and ensures clear characters display. The detection method is simple, fast, accurate and highly effective.

Description

technical field [0001] The invention belongs to the technical field of circuit boards, and in particular relates to a circuit board for fault detection of display blurred screens. Background technique [0002] The blurred screen failure of the display is a relatively common display failure. Because the causes of display blurred screen are also more complicated, and the performance of blurred screen caused by different reasons is also different, so it is more troublesome to eliminate. If discoloration or horizontal stripes appear on the corners of the monitor, it is generally caused by external or internal interference; Interference with the internal strong magnetic field (here only refers to the CRT display, this will not happen to the LCD liquid crystal display). 1. External interference: It is due to strong electromagnetic interference near the display, such as electric sparks and high-frequency electromagnetics. If the interference intensity is very large, it will caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G09G1/00
Inventor 王祖刚
Owner 王祖刚
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