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Monitoring method and monitoring system for display panel control circuit

A display panel and control circuit technology, applied in static indicators, instruments, etc., can solve the problems of abnormal panel display, abnormal panel display, troubleshooting and abnormal time-consuming and labor-intensive problems, so as to save manpower and material resources and improve processing. The effect of efficiency

Pending Publication Date: 2020-03-27
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Liquid Crystal Display (LCD) is a commonly used electronic display device at present. Power Management IC (PMIC) is a common circuit in the DC circuit DC-DC (Direct Current) of the display device. PMIC is used as a programmable The circuit has a built-in code (code) for storing work. In the LCD panel display, the code of the PMIC is changed due to some reasons, resulting in an abnormal display of the panel. There are many abnormal factors, so the process of troubleshooting and solving abnormalities is often time-consuming and labor-intensive

Method used

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  • Monitoring method and monitoring system for display panel control circuit
  • Monitoring method and monitoring system for display panel control circuit

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Embodiment Construction

[0030] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments that the present application can be used to implement. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. In the figures, structurally similar elements are denoted by the same reference numerals.

[0031] The present application provides a method for monitoring a control circuit of a display panel, and the control circuit includes a power management integrated circuit, a timing controller, and a first memory. The power management integrated circuit is connected to the timing controller through a first wire, and the timing controller is connected to the first memory ...

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Abstract

The invention provides a monitoring method and a monitoring system for a display panel control circuit. The control circuit comprises a power supply management integrated circuit, a time sequence controller and a first memory. A second code required by the normal work of the power supply management integrated circuit and a cyclic redundancy code of the second code are pre-stored in the first memory. The monitoring method comprises: a time sequence controller reading a first code operated by a power management integrated circuit and calculates a cyclic redundancy code of the first code; then the time sequence controller checking the cyclic redundancy code of the first code and the cyclic redundancy code of the second code; if the cyclic redundancy code of the first code is consistent with the cyclic redundancy code check result of the second code, continuing to monitor; otherwise, the time sequence controller loading the second code to a storage area in the power management integrated circuit so as to update the code in the storage area of the power management integrated circuit into the second code, thereby monitoring the working state of the power management integrated circuit inreal time.

Description

technical field [0001] The present application relates to the technical field of display panels, in particular to a monitoring method and a monitoring system for a control circuit of a display panel. Background technique [0002] Liquid Crystal Display (LCD) is a commonly used electronic display device at present. Power Management IC (PMIC) is a common circuit in the DC circuit DC-DC (Direct Current) of the display device. PMIC is used as a programmable The circuit has a built-in code (code) for storing the work. In the display of the LCD panel, the code of the PMIC is changed due to some reasons, resulting in an abnormal panel display. There are many abnormal factors, so the process of troubleshooting and solving abnormalities is often time-consuming and labor-intensive. [0003] Therefore, be badly in need of a kind of means that can solve the above-mentioned problem. Contents of the invention [0004] The present application provides a monitoring method and a monitori...

Claims

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Application Information

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IPC IPC(8): G09G3/00
CPCG09G3/006
Inventor 罗磊曹丹李文芳
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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