Backlight module with blue light hazard improving design and display module using the backlight module

Abstract

The invention provides a backlight module which comprises a light source generating backlight. The backlight has a frequency spectrum T (lambda) with the wavelength lambda as the independent variable and further defines an index function F(lambda):F(lambda)=T(lambda)*B(lambda). The B (lambda) is the blue hazard function. The index function F(lambda) has a first index peak when the wavelength ranges from 430 nm to the 490 nm and has a second index peak when the wavelength ranges from 495 nm to 565 nm. The ratio of the first index peak value to the second index peak value ranges from 12.1 to 15.7.

Description

technical field [0001] The present invention relates to a backlight module and a display module using the same; in particular, the present invention relates to a backlight module with a blue light damage improvement design and a display module using the same. Background technique [0002] With the advancement of display technology, there are many products that provide high-quality images. As far as the backlight module is concerned, the way of using fluorescent tubes as backlight sources in the past has been gradually replaced by light emitting diodes. Light-emitting diodes have the advantages of high luminous efficiency and long service life. A display using light-emitting diodes as a backlight source can reduce the overall volume and achieve the effect of light weight under the same size. [0003] In terms of light-emitting mode, a commonly used light-emitting diode backlight module uses blue light-emitting diodes, and the blue light emitted by the blue light-emitting dio...

AI Technical Summary

Problems solved by technology

As can be seen from the above, in order to reduce the impact of the light emitted by the backlight module on health, the existing displays still need to be improved.

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