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Backlight module and display device

A backlight module and display device technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as inability to switch, inability to switch, inflexible visual effects, etc., and achieve the effect of increasing flexibility

Inactive Publication Date: 2016-11-23
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-peeping mode of this display device is fixed, that is, the display device can only have one viewing range, and cannot switch between various viewing ranges
For example, it is not possible to switch between the anti-spy mode and the sharing mode that can be shared by multiple people, resulting in a single viewing range and inflexible visual effects

Method used

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  • Backlight module and display device

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Embodiment Construction

[0036] In order for those skilled in the art to better understand the technical solution of the present invention, the backlight module and the display device provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0037] figure 1 A schematic structural diagram of a backlight module provided by an embodiment of the present invention. see figure 1 , the backlight module includes a backlight source 1 and a liquid crystal lens 2 . Wherein, the backlight 1 emits light toward the display module 3 through the liquid crystal lens 2 . The light emitted by the backlight source 1 has a fixed divergence angle, which can be freely set according to specific conditions. When the liquid crystal lens 2 is not working (that is, not powered on), it only transmits the light emitted by the backlight 1 without changing the divergence angle of the light. When the liquid crystal lens 2 is working (that is, energized), it is equivalent to...

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PUM

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Abstract

The invention provides a backlight module and a display device. The backlight module comprises a backlight source and a liquid crystal lens. Light emitted by the backlight source penetrates through the liquid crystal lens when the liquid crystal lens is not in the working state; when the liquid crystal lens works, a concave lens is equivalently formed and used for enlarging the divergence angle of light emitted by the backlight source; the backlight source is located at the object distance position of the concave lens. According to the backlight module, different visual ranges can be increased and can be switched, and therefore the flexibility of a visual effect can be increased.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] As the screen size of the display device gradually increases, it brings consumers an ultimate visual and tactile experience. However, the large-sized display screen often cannot guarantee the personal privacy of the user. [0003] For this reason, current display devices are usually provided with parts such as anti-peep protection film to protect the personal privacy of users. However, the anti-peeping mode of this display device is fixed, that is, the display device can only have one viewing range, and cannot switch between different viewing ranges. For example, it is not possible to switch between the anti-peeping mode and the sharing mode that can be shared by multiple people, resulting in a single viewing range and inflexible visual effects. Contents of the invention [0004] The present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/29
CPCG02F1/133606G02F1/29G02F1/133607
Inventor 王倩陈小川赵文卿杨亚锋王维李忠孝高健王海燕
Owner BOE TECH GRP CO LTD
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