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Light path control member and display device including same

A technology for controlling components and optical paths, applied in optical components, optics, circuits, etc., can solve problems such as the limitation of light-shielding films, and achieve the effect of improving efficiency and easy movement

Pending Publication Date: 2022-03-18
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, since the light transmittance of the light-shielding pattern of the light-shielding film is fixed, users are limited in using the light-shielding film in various environments

Method used

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  • Light path control member and display device including same
  • Light path control member and display device including same
  • Light path control member and display device including same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0134] Light incident from the air region with a refractive index of 1 enters the interior of the partition wall unit through the first substrate and the first electrode.

[0135]At this time, the second refractive index of the partition wall unit is greater than the first refractive index of the air region, and when the second refractive index of the partition wall unit is changed from 1.3 to 1.9, the scattering angle inside the partition wall unit, the incident light penetration The distance D, the optical density and the light transmittance of the receiving unit including the black light absorbing particles and playing the role of light shielding.

[0136] At this time, the maximum width of the partition wall unit and the receiving unit was set to 30 μm, and the maximum height of the partition wall unit and the receiving unit was set to 100 μm.

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PUM

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Abstract

An optical path control member according to an embodiment includes: a first substrate to which light is incident from an outer region; a first electrode disposed on an upper surface of the first substrate; the second substrate is arranged above the first substrate; a second electrode disposed on a lower surface of the second substrate; and a light conversion unit disposed between the second electrode and the second electrode, in which the light conversion unit includes partition wall units and receiving units that are alternately arranged, each receiving unit having a light transmittance that changes according to application of a voltage, a refractive index of the partition wall units being greater than a refractive index of the outer region, and a refractive index of the receiving units being greater than a refractive index of the outer region. The difference between the refractive index of the partition wall unit and the refractive index of the outer region is 0.3 or more.

Description

technical field [0001] Embodiments relate to an optical path control member capable of improving improved front luminance and switchable, and to a display device including the optical path control member. Background technique [0002] The light-shielding film shields the transmission of light from the light source, and is attached to the front of the display panel as a display device for mobile phones, notebook PCs, tablet PCs, car navigation devices, vehicle touch controls, etc., so that light is blocked when the display transmits a picture The film adjusts the viewing angle of the light according to the incident angle of the light to express clear image quality at the viewing angle required by the user. [0003] In addition, the light-shielding film may be used for windows of vehicles, buildings, etc., to partially block external light to prevent glare, or to prevent the interior from being visible from the outside. [0004] That is, the light shielding film can control t...

Claims

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Application Information

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IPC IPC(8): G02F1/17G02F1/167G02F1/1679
CPCG02F1/172G02F1/167G02F1/1679H10K59/875H10K59/8792G02F1/1675G02B2207/123G02F1/1323G02F1/1681G02B26/0875G02F1/1676G02F1/1677G02F1/137G02F2202/28
Inventor 高相俊李拳震赵显东
Owner LG INNOTEK CO LTD
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