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display device

A technology of display device and curved surface display, which is applied to lighting devices, identification devices, components of lighting devices, etc., and can solve the problem of uneven distribution of light intensity

Inactive Publication Date: 2017-05-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Curved displays have a curved display panel, and the general backlight source is designed for flat-panel displays to produce uniform light intensity distribution on a flat surface, but it is not suitable for producing uniform light intensity distribution on curved surfaces. If a curved display is used with a general The backlight source often causes serious uneven distribution of light intensity

Method used

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Embodiment Construction

[0035] A number of embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some existing conventional structures and elements will be shown in a simple schematic manner in the drawings.

[0036] As used herein, "about", "approximately" or "approximately" generally means that the error or range of the value is within 20%, preferably within 10%, more preferably within Within five percent. If there is no explicit statement in the text, the numerical values ​​mentioned are all regarded as approximate values, that is, there are errors or ranges indicated by "about", "approximately" or "approximately"...

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Abstract

The utility model discloses a display device comprising a curved surface display panel and a backlight module. The backlight module is corresponding to the curved surface display panel. The backlight module comprises a substrate and a plurality of light sources. The light sources are disposed on the substrate, which is provided with a reference surface. The vertical distance between the reference surface and the curved surface display panel is gradually reduced from the center to the two sides. The light sources are used to generate one light field, and the light intensity distribution of the light field is in direct ratio to cos2 theta j, and the theta j is equal to sin-1(Pj / R), the Pj is the distance between one position of the light field and the center of the light field, and the Pj is in a range from zero to L. The L is a half of the length of the backlight module, and the R is the radius of curvature of the curved surface display panel.

Description

technical field [0001] The invention relates to a display device. Background technique [0002] With the diversified development of displays, curved displays are becoming more and more popular, which provide wider-angle image information and are suitable for public advertisements and other purposes. Curved displays have a curved display panel, and the general backlight source is designed for flat-panel displays to produce uniform light intensity distribution on a flat surface, but it is not suitable for producing uniform light intensity distribution on curved surfaces. If a curved display is used with a general The backlight source often causes serious uneven distribution of light intensity. Contents of the invention [0003] The present invention provides a curved display device, which controls the light field output by the backlight source, so that the light intensity of the light field has a certain distribution, and this distribution is related to the curvature of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/00F21V19/00F21V5/08
CPCF21V5/08F21V19/00G09F9/00
Inventor 谢尚玮郭汉斌王忠蔚
Owner AU OPTRONICS CORP