LIGHT STIPPLING DISPLAY DEVICE

• Main Author: HIRAYAMA, Shozo
• Format: Patent
• Language: English
• Published: 09.06.2022
• Subjects: 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; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A display device according to the present invention is a light stippling display device that performs light stippling. In the device, a plurality of hole portions are formed on a display plate portion including a magnetized sheet which is magnetized on both sides, and the hole portion is opened and closed by a light shielding body made of a magnetic ball. Thereby, the position of the light shielding body is switched between a light transmitting state and a light shielding state. The light shielding body has directivity for a center of the hole portion in the display plate portion which is magnetized on both sides in a case where the light shielding body is switched to the light shielding state. Therefore, the reliability of display can be improved, and the operability can be improved.