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Display method of display device and display device

A display method and a technology of a display device, which are applied to static indicators, instruments, etc., can solve problems such as serious afterimages, achieve the effects of lowering the working temperature, solving serious afterimages, and improving the problem of afterimages

Active Publication Date: 2019-04-26
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the afterimage problem is more serious when presenting images with light and dark differences such as checkerboard patterns.

Method used

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  • Display method of display device and display device
  • Display method of display device and display device
  • Display method of display device and display device

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Embodiment Construction

[0027] 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.

[0028] A display device, such as a liquid crystal display device, includes a display panel and a backlight module. The backlight module includes a plurality of backlight partitions arranged in an array, and the luminance of each backlight partition can be controlled independently. Tuning technology enables HDR display.

[0029] Exemplarily, a light emitting diode (Light Emitting Diode, LED) is usually used as a backlight in a backlight module of a liquid crystal display panel in a liquid crystal display device, an...

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Abstract

The embodiment of the invention discloses a display method of a display device and the display device. The display method includes the following steps: acquiring a to-be-displayed image; determining bright areas and dark areas of the to-be-displayed image; judging whether the to-be-displayed image meets the requirements that the distance between the bright and dark partition boundary of the adjacent bright area and dark area and the backlight partition boundary of a backlight module is less than a first threshold, and the voltage difference between the adjacent bright area and dark area is greater than a second threshold; if the requirements are met, increasing the output voltage of a display panel corresponding to the dark areas, and reducing the output current of a backlight partition corresponding to the dark areas; and if the requirements are not met, adopting an initial output scheme to determine the output voltage of the display panel and the output current of the corresponding backlight partition. According to the display method of the display device provided by the embodiment of the invention, the difference between the output voltages of the adjacent bright area and dark area can be reduced, the working temperature of the backlight partition can be lowered, and the problem of residual images can be further improved on the premise of ensuring normal image display.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display method of a display device and a display device. Background technique [0002] Dynamic Range (Dynamic Range, DR) broadly refers to the span range that a certain changing thing can change. For a static image or video frame, the dynamic range is the range from the darkest tone to the brightest color, and the light and dark changes are realized within this range; the range The larger the value is, the more layers of light and shade changes in the image, and the stronger the ability of the display device to describe the details of the image. The traditional liquid crystal display (Liquid Crystal Display, LCD) adopts global backlight, and its dynamic range is about 2 orders of magnitude, and the global backlight also has relatively serious light leakage phenomenon, which is one of the reasons for limiting the display contrast of LCD. [0003] At present, in order t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/3406G09G3/3696G09G2320/0257
Inventor 方丽婷
Owner XIAMEN TIANMA MICRO ELECTRONICS
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