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A display device, its driving method, and its driving system

A technology of a display device and a driving method, which is applied to static indicators, instruments, etc., can solve problems such as display panel screen abnormality, source driver module cannot receive data normally, etc., so as to reduce electromagnetic interference, ensure normality, and ensure display screen Effect

Active Publication Date: 2019-12-13
HKC CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a display device and its driving method and driving system, aiming to solve the problem of improving the electromagnetic interference of display products, which may spread the frequency of the clock signal output by the control module of the display product, or may The drive signal output by the control module is spread frequency. When both the clock signal and the drive signal are spread frequency, causing the actual frequency spread to exceed the expected value, it will cause the source driver module to fail to receive data normally, resulting in an abnormal picture of the display panel.

Method used

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  • A display device, its driving method, and its driving system
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  • A display device, its driving method, and its driving system

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Embodiment Construction

[0055] In order to enable those skilled in the art to better understand the solution of the application, the technical solution in the embodiment of the application will be clearly described below in conjunction with the drawings in the embodiment of the application. Obviously, the described embodiment is the Some examples, but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0056] The terms "comprising" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. For example, a process, method or system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or optionally further includes Other steps or unit...

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Abstract

Embodiments of the present application provide a display device, a driving method thereof, and a driving system. The method includes: when receiving a driving signal, detecting whether the driving signal is frequency-spread, and the driving signal is used to control the display panel. drive; if the drive signal is frequency spread, output the clock signal output by the control module to the source driver module; if the drive signal is not frequency spread, then according to the preset frequency spread ratio, the The frequency spread operation is performed on the clock signal; and the frequency spread clock signal is output to the source driver module. In the embodiment of the present application, when the drive signal is received, it is detected whether the drive signal is spread; if so, the clock signal output by the control module is output to the source driver module; if not, the clock signal is adjusted according to the preset spread ratio After the spread spectrum operation is performed, the output is sent to the source drive module; while effectively reducing the electromagnetic interference of the display device, the display screen of the display panel is guaranteed to be normal.

Description

technical field [0001] The embodiments of the present application belong to the field of display technology, and in particular relate to a display device, a driving method and a driving system thereof. Background technique [0002] With the continuous development of display technology, display devices such as liquid crystal panels and monitors are constantly developing in the direction of thinner, lighter, larger screen, low power consumption, and low cost. In the actual development and testing process of display products, regulations stipulate that Electromagnetic Interference (EMI) testing is required to prevent display products from causing adverse effects on surrounding objects or human bodies. The essence of electromagnetic interference testing is to detect the energy value radiated by the product in each frequency band. Because the components of the display product work on several fixed frequencies, if it is found that the energy value radiated by electromagnetic inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2330/06G09G2310/08G09G2370/08
Inventor 黄北洲
Owner HKC CORP LTD
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