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Backlight module and display device including same

A technology of backlight module and light source device, applied in optics, nonlinear optics, instruments, etc., can solve problems such as the generation of bright bands and use problems, and achieve the effect of reducing the phenomenon of light concentration

Active Publication Date: 2021-06-04
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of backlight module may produce a bright band on the side of the display area near the light source, thus causing problems in use

Method used

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  • Backlight module and display device including same
  • Backlight module and display device including same
  • Backlight module and display device including same

Examples

Experimental program
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Effect test

Embodiment Construction

[0044] The invention provides a display device and a backlight module contained therein. The display device preferably includes a non-self-illuminating display panel such as a liquid crystal display panel or an electrophoretic display panel; and is preferably applicable to computer monitors, televisions, monitors, and vehicle hosts. In addition, the display device can also be applied to other electronic devices, such as display screens of mobile phones, digital cameras, and handheld game devices.

[0045] exist figure 1 In the illustrated embodiment, the display device includes a display panel 30 and a backlight module 10 . The display panel 30 is stacked on the backlight module 10 to receive light from the backlight module 10 . The backlight module 10 includes a light source device 100 , a reflective curved surface 300 and a cavity 500 . Such as figure 1 As shown, the light source device 100 includes a light source substrate 110 and a plurality of light sources 130 . In ...

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PUM

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Abstract

The invention provides a backlight module and a display device including the same. The backlight module includes a light source device, a reflective curved surface and a cavity. The light source device includes one or more light sources distributed along the first direction. The reflective curved surface extends along the first direction, and reflects the light generated by the light source into the cavity. The reflective curved surface has a first-order curved surface and a second-order curved surface. The first-order curved surface and the second-order curved surface are arranged side by side, extend along the first direction respectively, and form a concave relative to the light source on a section perpendicular to the first direction. The second-order curved surface is closer to the light source device than the first-order curved surface, and forms a ladder structure together with the first-order curved surface.

Description

technical field [0001] The invention relates to a backlight module with a reflective curved surface and a display device using the same; in particular, the invention relates to a backlight module with a stepped reflective curved surface and a display device using the same. Background technique [0002] Flat and curved display devices have been widely used in various electronic devices, such as mobile phones, personal wearable devices, televisions, vehicle hosts, personal computers, digital cameras, handheld video games, and so on. However, with the continuous improvement of specification requirements such as resolution and narrow bezel, the optical design in the display device is also tested. [0003] Taking a liquid crystal display device as an example, its optical performance is usually closely related to the backlight module disposed behind the display panel. Traditionally, backlight modules can be roughly divided into two types: edge-lit and direct-lit. Among the edge-l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02F1/167
CPCG02F1/133605G02F1/167
Inventor 曾立伟蔡卲瑜谢坤宏
Owner AU OPTRONICS CORP
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