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Driving method and driving device of display panel and display device

A driving method and display panel technology, applied to static indicators, instruments, etc., can solve problems such as electromagnetic interference of scanning signals and interference with the normal operation of electronic equipment, and achieve the effects of avoiding interference, weakening electromagnetic interference phenomena, and improving performance

Active Publication Date: 2020-04-17
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the scanning signal generated by the gate drive circuit has a fixed frequency, so the scanning signal will generate electromagnetic interference, and when the electromagnetic interference is radiated from the display panel, it will interfere with the normal operation of other surrounding electronic devices

Method used

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  • Driving method and driving device of display panel and display device
  • Driving method and driving device of display panel and display device
  • Driving method and driving device of display panel and display device

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0035] The display panel includes a display area and a non-display area, wherein, in the display area, a plurality of scanning lines and a plurality of data lines cross each other to define a plurality of sub-pixel areas, each sub-pixel area is provided with a sub-pixel unit, and in the non-display area, a set There is a gate drive circuit, and the gate drive circuit includes a plurality of cascaded shift registers, wherein the secondary trigger signal output terminal of the upper-stage shift register in the adjace...

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Abstract

The embodiment of the invention discloses a driving method and a driving device of a display panel and a display device. The driving method comprises the steps of obtaining a to-be-displayed image; according to the to-be-displayed image, providing a display signal for the sub-pixel units by utilizing the scanning lines and the data lines, and displaying the to-be-displayed image according to the display signal, the display signal comprising a scanning pulse signal and a data signal, and in at least two frames of to-be-displayed images, the periods of the scanning pulse signals sent to the samerow of sub-pixel units being different. According to the technical scheme provided by the embodiment of the invention, for the same row of sub-pixel units, the periods of the scanning pulse signals in each frame are not completely the same, namely the scanning frequency is not fixed, so that the radiation energy can be dispersed at more frequency positions, the energy value at the frequency multiplication position is reduced, the electromagnetic interference is favorably reduced, and the influence of the display panel on other peripheral electronic products is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a driving method, a driving device and a display device of a display panel. Background technique [0002] At present, with the development of display technology, liquid crystal display panels (Liquid Crystal Display, LCD) and organic light emitting display panels (Organic Light Emitting Diode, OLED) have become two mainstream display panels in the display field, and are widely used in computers, mobile phones, Wearable devices and automotive applications. [0003] Generally, both LCD and OLED include a display area and a non-display area surrounding the display area. The display area includes multiple rows and columns of sub-pixel units and multiple scanning lines, and each scanning line is connected to a row of sub-pixel units. The non-display area includes a gate drive circuit for generating scan signals and transmitting the scan signals to the scan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/3266
CPCG09G3/3677G09G3/3266
Inventor 黄志鹏吴常志孙莹许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS
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