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Start-up method and circuit

A boot-up, circuit technology, applied in static indicators, instruments, etc., can solve problems such as flickering and black screen, and achieve accurate detection and avoid the effect of display screen blooming or black screen.

Active Publication Date: 2022-03-22
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the existing methods, when the parameter design is inaccurate, there will still be problems such as flickering, or a sudden black screen after booting

Method used

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  • Start-up method and circuit

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Embodiment Construction

[0056] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0057] The technical solution provided by this embodiment detects the timing signal output by the image enhancement chip when starting up, and determines whether the signal at the front end of the starting circuit is stable according to the detection result, thereby improving the accuracy of detection and avoiding the display when starting up. The problem of ...

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Abstract

The embodiment of the present application discloses a start-up method and circuit. The method includes: receiving the first timing signal of M frames of images output by the image enhancement chip; if there are N frames of images in the first timing signal of M frames of images If the first timing signal is the same as the first preset value, a first message is sent to the controller, so that the controller controls the receiving module and the signal analysis module to reset according to the first message. In this way, based on the first timing signal output by the image enhancement chip, it can be accurately determined whether the signal output by the image enhancement chip is stable, and then the accurate detection of the front-end signal is realized, and when the front-end signal is detected to be stable, restart the signal receiving module and The signal analysis module can avoid the problem of blurred screen or black screen of the display screen caused by the unstable signal output by the front end.

Description

technical field [0001] The embodiments of the present application relate to the technical field of power-on display, and in particular, to a power-on method and circuit. Background technique [0002] For the display with SOC (System on Chip, system-on-chip), since there is no floating-point operation in the SOC, it is impossible to perform complex standard calculations such as DICOM (Digital Imaging and Communications in Medicine, medical digital imaging and communication), so the display cannot be realized. Built-in DICOM automatic calibration. At this time, if the signal transmission is unstable during the power-on stage, display problems such as blurred screen, wire drawing, and black screen will appear. [0003] In an existing method, a timing detection mechanism inside an FPGA (Field-Programmable Gate Array, Field Programmable Gate Array) is used to detect whether the signal at the front end of the display is stable. However, in the existing methods, when the paramete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/36
CPCG09G3/2022G09G3/36
Inventor 夏建龙肖龙光徐卫
Owner HISENSE VISUAL TECH CO LTD