A display screen which can be operated in at least two operating modes, B1 for an unrestricted viewing mode and B2 for a restricted viewing mode, including a transmissive image rendering device which modulates light that is incident upon it for displaying image content and which can be operated in a first operating mode B1 for an unrestricted viewing mode and in a second operating mode B2 for a restricted viewing mode. The display screen includes an illumination device arranged behind the transmissive image rendering device and which can be operated in at least two operating modes B1 and B2. The illumination device emits light in an unrestricted viewing angle range in mode B1 and emits light in a restricted viewing angle range in mode B2. The display screen further includes a control for the transmissive image rendering device and the illumination device for switching between modes B1 and B2.
SCREEN FOR A FREE VIEWING MODE AND A RESTRICTED VIEWING MODE
2024-08-15
Patent
Electronic Resource
English
IPC: | G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
Display screen with free viewing mode and restricted viewing mode
European Patent Office | 2024
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