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Bottom backlight device with view angle deflection function

A technology of backlight device and angle of view, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of reduced light efficiency of backlight and achieve full utilization

Pending Publication Date: 2019-03-15
中航华东光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the viewing angle deflecting film can change the viewing angle characteristics of the display, adding the viewing angle deflecting film on the basis of the original backlight will reduce the light efficiency of the backlight

Method used

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  • Bottom backlight device with view angle deflection function
  • Bottom backlight device with view angle deflection function

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Embodiment Construction

[0027] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0028] In the present invention, in the absence of a contrary statement, the orientation words included in the term, such as "upper, lower, inner, outer", etc., only represent the orientation of the term in the normal use state, or are understood by those skilled in the art. colloquial term and should not be construed as a limitation of the term.

[0029] Such as figure 1 and figure 2 As shown, the present invention provides a bottom backlight device with viewing angle deflection, and the bottom backlight device with viewing angle deflection includes: LED lamp 2, support body 3 and diffuser plate 1; multiple LED lamps 2 are arranged at equal intervals , and ...

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PUM

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Abstract

The invention discloses a bottom backlight device with a view angle deflection function. The bottom backlight device comprises LED lamps, supporting bodies and a diffusion plate. The LED lamps are arranged at equal intervals and distributed in cyclic arrays. The diffusion plate is arranged over the LED lamps. The bottom of each LED lamp is provided with the corresponding supporting body. The faces, making contact with the LED lamps, of the supporting bodies are obliquely arranged. Thus, an included angle alpha is formed between the normal light emitted by the LED lamps and the perpendicular direction, an included angle beta is formed between the light formed after the normal light is diffused by the diffusion plate and the perpendicular direction, and the quotient of alpha and beta is larger than or equal to 0.5 and smaller than or equal to 1.5. By means of the bottom backlight device, the problem is solved that though a view angle deflection film can change the view angle characteristic of a displayer in the prior art, the lighting effect of a backlight source can be reduced by adding the view angle deflection film on the basis of existing backlight.

Description

technical field [0001] The present invention relates to the field of liquid crystal display devices, in particular to a bottom backlight device with viewing angle deflection. Background technique [0002] Due to its unique liquid crystal display characteristics, liquid crystal display has developed very rapidly in recent years. It is the current mainstream display technology and is widely used in display applications in various industries. Liquid crystal displays have replaced traditional cathode ray tubes in many fields and become mainstream display devices. The liquid crystal itself does not emit light and needs a backlight to provide light to illuminate the display area. Therefore, the light source selection, brightness, uniformity, and viewing angle of the backlight have a great influence on the optical performance of the terminal display. [0003] Existing liquid crystal display devices and products have the highest brightness in the direction vertical to the panel (...

Claims

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Application Information

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IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133608G02F1/133612
Inventor 董亚劲朱标李正荣张伟
Owner 中航华东光电有限公司
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