DISPLAY DEVICE AND METHOD FOR CONTROLLING DISPLAY DEVICE

• Main Authors: SATO NORITOSHI, KAI YASUAKI, MAEHASHI RYOTA, OTA YOSHIMI
• Format: Patent
• Language: English; Japanese
• Published: 22.11.2018
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTROGRAPHY; FREQUENCY-CHANGING; HOLOGRAPHY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHOTOGRAPHY; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a display device capable of improving transparency in a transparent state of an image display body in which an optical state varies between the transparent state and a non-transparent state.SOLUTION: A display device 10 has: an image display body 100 having a display functional layer that increases light-scattering property by receiving UV light and decreases the light-scattering property by receiving first visible light; a UV light projection part 200 that projects UV light to the image display body 100; a first visible light projection part 300 that projects the first visible light to the image display body 100; and a second visible light projection part 400 that projects second visible light to the image display body 100 in which the light-scattering property of the display functional layer has been increased by receiving UV light, so as to display an image 600 on the image display body 100.SELECTED DRAWING: Figure 1 【課題】透明状態と非透明状態との間で光学状態が変化する画像表示体の透明状態における透明度を向上できる表示装置を提供する。【解決手段】表示装置１０は、紫外光を受光することによって光散乱性が増加し、第１可視光を受光することによって光散乱性が低下する表示機能層を有する画像表示体１００と、画像表示体１００に紫外光を投光する紫外光投光部２００と、画像表示体１００に第１可視光を投光する第１可視光投光部３００と、紫外光を受光することによって表示機能層の光散乱性が増加した画像表示体１００に第２可視光を投光して、画像表示体１００上に画像６００を表示する第２可視光投光部４００と、を有する。【選択図】図１