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Edge-lit backlight module, driving method thereof, and display device

A technology for a backlight module and a driving method, which is applied to identification devices, static indicators, instruments, etc., can solve the change of the gap between the light guide plate and the light bar, reduce the display effect of the display device, and reduce the brightness stability of the backlight module, etc. problem, to achieve the effect of avoiding brightness changes and keeping the brightness stable

Inactive Publication Date: 2021-01-26
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the influence of assembly tolerance, processing tolerance, vibration, expansion / contraction and other factors, the gap between the light guide plate and the light bar may change
This reduces the stability of the brightness of the backlight module and reduces the display effect of the display device.

Method used

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  • Edge-lit backlight module, driving method thereof, and display device
  • Edge-lit backlight module, driving method thereof, and display device
  • Edge-lit backlight module, driving method thereof, and display device

Examples

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Embodiment Construction

[0047] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure.

[0048] In the drawings, the thicknesses of regions and layers may be exaggerated for clarity. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0049] The terms "a", "an" and "the" are used to indicate th...

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Abstract

The disclosure provides an edge-lit backlight module, a driving method thereof, and a display device, which belong to the field of display technology. The edge-lit backlight module includes a light guide plate, a light bar, a distance detection device and a controller; wherein the distance detection device is used to detect the distance between the light guide plate and the light bar; the controller is connected to the distance detection The device and the light bar are used to control the luminous brightness of the light bar according to the distance. The edge-lit backlight module of the present disclosure can improve the brightness stability of the edge-light backlight module.

Description

technical field [0001] The present disclosure relates to the field of display technology, in particular to an edge-lit backlight module, a driving method thereof, and a display device. Background technique [0002] A light guide plate (LGP) is one of the key components of an edge-lit backlight module. Due to the relatively large temperature expansion rate and humidity expansion rate of the light guide plate, and considering factors such as processing tolerances and convenience of light guide plate assembly, a certain gap (Gap) is usually reserved between the light guide plate and the light bar. [0003] The brightness of the backlight module is very sensitive to the change of the gap between the light guide plate and the light bar. However, under the influence of assembly tolerance, processing tolerance, vibration, expansion / contraction and other factors, the gap between the light guide plate and the light bar may change. This reduces the stability of the brightness of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34G09F9/00
CPCG09F9/00G09G3/3406
Inventor 严韶明
Owner BOE TECH GRP CO LTD