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Backlight circuit, driving method thereof, display panel and display device

A backlight circuit and backlight drive technology, applied in optics, nonlinear optics, static indicators, etc., can solve problems such as wrong wire sequence and backlight group not being able to light up normally

Active Publication Date: 2022-03-29
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to save the amount of materials and reduce the complexity of material management, one or several backlight output interfaces are usually connected to the backlight group on the backlight board, and each backlight output interface takes into account the output function of multiple backlight groups , connect the backlight output interface and the backlight group through wires, but in some cases, the wire sequence of the wires is wrong, resulting in the positive and negative poles of the backlight group being connected to different backlight drive units. It can only be lit correctly when the poles are connected to the same backlight drive unit, then the backlight group cannot be lit normally due to the wrong line sequence

Method used

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  • Backlight circuit, driving method thereof, display panel and display device
  • Backlight circuit, driving method thereof, display panel and display device
  • Backlight circuit, driving method thereof, display panel and display device

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Embodiment Construction

[0031] The application 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 related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0033] like figure 1 As shown, the embodiment of the present invention provides a backlight circuit, including:

[0034] A plurality of backlight groups 3; each backlight group 3 includes, for example but not limited to, a plurality of LED lamps 7 arranged in series.

[0035] A plurality of back...

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PUM

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Abstract

The invention discloses a backlight circuit and a driving method thereof, a display panel and a display device, and the backlight circuit comprises a plurality of backlight lamp groups; a plurality of backlight driving units; and a plurality of gating units, each gating unit is connected with each backlight driving unit, and the gating units are used for selectively connecting each backlight lamp group with each backlight driving unit in a one-to-one correspondence manner. According to the scheme, the plurality of gating units are arranged, and each gating unit is connected with each backlight driving unit, so that the correct backlight driving unit can be connected with the backlight lamp group through the effect of selecting one of the gating units even if a line sequence error occurs, and the backlight lamp group is connected with each backlight driving unit in a one-to-one correspondence manner; under the condition that the backlight lamp sets are connected with the backlight driving units in a one-to-one correspondence mode, the backlight lamp sets can be normally lightened.

Description

technical field [0001] The present invention generally relates to the field of display technology, and in particular to a backlight circuit and a driving method thereof, a display panel and a display device. Background technique [0002] For a large-size liquid crystal display, generally multiple backlight groups are required. In order to save the amount of materials and reduce the complexity of material management, one or several backlight output interfaces are usually connected to the backlight group on the backlight board, and each backlight output interface takes into account the output function of multiple backlight groups , connect the backlight output interface and the backlight group through wires, but in some cases, the wire sequence of the wires is wrong, resulting in the positive and negative poles of the backlight group being connected to different backlight drive units. Only when the poles are connected to the same backlight drive unit can it be correctly illum...

Claims

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Application Information

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IPC IPC(8): G09G3/34G02F1/13357
CPCG09G3/3406G02F1/133603
Inventor 管恩慧王志懋李咸珍
Owner BOE TECH GRP CO LTD
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