Optical components and display devices

Abstract

The invention discloses an optical module and a display device. The optical module comprises a light guide plate, a refraction substrate and at least one luminous element, the light guide plate is provided with a first in-light face, an out-light face and at least one second in-light face, the first in-light face and the out-light face are opposite, the second in-light faces are arranged between the first in-light face and the out-light face, the second in-light faces are correspondingly provided with the luminous elements, and the refraction substrate is opposite to the out-light face. The luminous elements selectively face the second in-light faces corresponding to the luminous elements and emit first light rays, moreover, and the light guide plate can reflect the first light rays which at least partly irradiate the second in-light faces of the light guide plate, so that the first light rays emit from the light guide plate and enter the refraction substrate, wherein the refractive index of the refraction substrate is larger than or equal to that of the light guide plate. By means of the optical module, switching between a peep-proof mode and a normal mode can be achieved, and the peep-proof effect is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an optical component and a display device including the optical component. Background technique [0002] Traditionally, with the increasing popularity of commercial mobile display products, mobile office based on display products has become a new trend, and the problems of information theft and peeping brought about by it have been paid more and more attention. [0003] In order to solve the above-mentioned anti-peeping problem, in the field of liquid crystal display, an anti-peeping sheet is generally added on the light-emitting side of the display device. The light transmission state of the privacy sheet. [0004] Apparently, the traditional anti-spying sheet relies on changing the light transmission state of the anti-spying sheet to change the divergence angle of the outgoing light, but cannot effectively control the angle and direction of the divergence angle. The anti-pee...

AI Technical Summary

Problems solved by technology

[0004] Apparently, the traditional anti-spying sheet relies on changing the light-transmitting state of the anti-spying sheet to change the divergence angle of the outgoing light, and cannot effectively control the angle and direction of the divergence angle.

The anti-peeping sheet of this structure also cannot be switched between the anti-peeping mode and the normal display mode

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