DISPLAY DEVICE

• Main Author: FUKUOKA Kenta
• Format: Patent
• Language: English
• Published: 18.01.2018
• Subjects: ADVERTISING; BLASTING; CRYPTOGRAPHY; 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; DISPLAY; DISPLAYING; EDUCATION; FREQUENCY-CHANGING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LABELS OR NAME-PLATES; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; SIGNS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; WEAPONS

When a liquid crystal panel (30) is in an ON state, polarized backlight that is incident from a polarized backlight unit (50) reaches a front surface. At this point, ambient light that is incident from a rear side also reaches the front surface. Accordingly, an observer who is on a front side of a transparent display (100) can visually recognize an image that is displayed in an overlaid manner on the background seen through the transparent display (100). In a case where the liquid crystal panel (30) is placed into an OFF state, the polarized backlight cannot reach the front surface of the transparent display (100), and the ambient light reaches the front surface. Accordingly, the observer on the front side of the transparent display (100) can visually recognize the background seen through the transparent display (100) and cannot visually recognize the image.