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Backlight module, display device and electronic device

A technology of backlight module and liquid crystal display device, which is applied in the field of optics and can solve problems such as inability to focus imaging and inability to meet the requirements of the optical path

Pending Publication Date: 2019-06-25
SHENZHEN FUSHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, although the microstructure of this kind of strip-shaped triangular prism has a strong gathering effect on the backlight light, it is difficult for the light reflected from the external object back to the liquid crystal The detection light of the display screen will have a strong divergence effect, making it impossible to focus and image under the backlight module
Therefore, it cannot meet the current optical path requirements that need to install a sensing module under the LCD screen to realize various under-screen sensing functions.

Method used

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  • Backlight module, display device and electronic device
  • Backlight module, display device and electronic device
  • Backlight module, display device and electronic device

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Embodiment Construction

[0042] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, are only for explaining the present application, and should not be construed as limiting the present application. In the description of the present application, it should be understood that the terms "first" and "second" are only used for description, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity or arrangement of indicated technical features order. Therefore, the technical features defined as "first" and "second" may explicitly or implicitly include one or more of said technical features. In the description of the present application, "plurality" means two or more, unless other...

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PUM

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Abstract

The invention provides a backlight module, used for transmitting a detection light beam emitted and / or reflected by an external object to a sensing module. The detection light beam is used for detecting biological characteristic information of an external object. The backlight module can provide backlight rays for a display panel, and the backlight module is characterized by comprising a diffusionsheet which can penetrate through the detection light rays and diffuse the backlight rays. In addition, the invention further provides a display device comprising the backlight module and electronicdevice.

Description

technical field [0001] The present application belongs to the field of optical technology, and in particular relates to a backlight module, a display device and electronic equipment. Background technique [0002] In the prior art, in order to increase the brightness of the backlight of the liquid crystal display, an optical film layer, such as a Brightness Enhancement Film (BEF) or a prism sheet, is usually provided in the backlight module. Currently, the optical film layer includes a light-transmitting substrate and a microstructure of elongated triangular prisms formed on the light-transmitting substrate. The microstructures of the elongated triangular prisms are closely arranged on the transparent substrate without intervals. When the backlight light from the backlight module is incident on the film layer unit, the microstructure of the elongated triangular prism is used to concentrate the scattered backlight light. [0003] However, although the microstructure of this ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20G02F1/13357
Inventor 林峰田浦延周扬
Owner SHENZHEN FUSHI TECH CO LTD