Side light type 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: 2019-10-15
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, etc., 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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  • Side light type backlight module, driving method thereof and display device
  • Side light type backlight module, driving method thereof and display device
  • Side light type 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 the embodiments of the present disclosure.

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

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

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Abstract

The invention provides a side light type backlight module, a driving method thereof and a display device, and belongs to the technical field of display. The side light type backlight module comprisesa light guide plate, a light bar, a distance detection device and a controller, wherein the distance detection device is used for detecting the distance between the light guide plate and the light bar; the controller is connected with the distance detection device and the light bar and used for controlling the light-emitting brightness of the light bar according to the distance. According to the side light type backlight module, the stability of the brightness of the side light type backlight module can be improved.

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 Applications(China)
IPC IPC(8): G09G3/34G09F9/00
CPCG09F9/00G09G3/3406
Inventor 严韶明
Owner BOE TECH GRP CO LTD
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