An electronic apparatus, includes: a display screen, a reflector and a sensor, wherein a region of the display screen located on a front surface of the electronic apparatus is a first display region, a region of the display screen located on a back surface of the electronic apparatus is a second display region, and the display screen is configured to transmit light; the reflector and the sensor are arranged inside the electronic apparatus, and light transmitted from the first display region or the second display region is reflected by the reflector and then irradiated on the sensor; and the sensor generates an electric signal for fingerprint identification based on the light received. Sharing the sensor under the display screen can therefore be realized, with a single sensor to implement fingerprint collection and identification of a multi-surface display device.

An electronic apparatus, includes: a display screen, a reflector and a sensor, wherein a region of the display screen located on a front surface of the electronic apparatus is a first display region, a region of the display screen located on a back surface of the electronic apparatus is a second display region, and the display screen is configured to transmit light; the reflector and the sensor are arranged inside the electronic apparatus, and light transmitted from the first display region or the second display region is reflected by the reflector and then irradiated on the sensor; and the sensor generates an electric signal for fingerprint identification based on the light received. Sharing the sensor under the display screen can therefore be realized, with a single sensor to implement fingerprint collection and identification of a multi-surface display device.

An optical sheet includes a first wedge layer having a first refractive index and including a wedge-shaped prism pattern including an inclined surface having an inclination angle with respect to a plane defined by a first direction and a second direction perpendicular to the first direction and a vertical surface extending in a third direction perpendicular to the first direction and the second direction, a second wedge layer disposed on the first wedge layer and having a second refractive index greater than the first refractive index, and a light blocking pattern disposed between the first wedge layer and the second wedge layer and including a first surface that contacts with the vertical surface and a second surface inclined to have the inclination angle with respect to the plane while contacting with the inclined surface.

A lens device includes a first lens module, a first light path turning module and an image sensor. The first lens module, the first light path turning module and the image sensor are sequentially arranged along a light path in which a light beam propagates. The first light path turning module is configured to change a direction in which the light beam propagates so that the light beam passes through the first lens module to form an image on the image sensor.

The present invention relates to a prism layer (10) superimposed on the front surface of a display (20), in which: a plurality of prism parts (11) are vertically arranged; the prism parts (11) each have an upper slope surface (12) and a lower slope surface (13), and have a corner part (14) which has a forward protruding triangular shape in a cross-sectional view; the angle θ1 of the upper slope surface (12) with respect to a rear surface (15) is set to 60° to 120°, and the angle θ2 of the lower slope surface (13) with respect to the rear surface (15) is set to 5° to 45°; and the pitch Pp of a groove part (16) between the prism parts (11) is made smaller than the vertical pitch Pd of a pixel (21) of the display (20).

The present invention relates to a prism layer (10) superimposed on the front surface of a display (20), in which: a plurality of prism parts (11) are vertically arranged; the prism parts (11) each have an upper slope surface (12) and a lower slope surface (13), and have a corner part (14) which has a forward protruding triangular shape in a cross-sectional view; the angle θ1 of the upper slope surface (12) with respect to a rear surface (15) is set to 60° to 120°, and the angle θ2 of the lower slope surface (13) with respect to the rear surface (15) is set to 5° to 45°; and the pitch Pp of a groove part (16) between the prism parts (11) is made smaller than the vertical pitch Pd of a pixel (21) of the display (20).

An optical isolation element comprising, sequentially: a light control film; a first optical path changing element; and a second optical path changing element. The optical isolation element has an excellent optical isolation ratio, and can be manufactured simply and at low cost. Such an optical isolation element can be applied, for example, to the fields of optical communication or laser optics, security and privacy protection, and members for brightness enhancement in displays or military products requiring hiding and covering, and the like.

An optical isolation element comprising, sequentially: a light control film; a first optical path changing element; and a second optical path changing element. The optical isolation element has an excellent optical isolation ratio, and can be manufactured simply and at low cost. Such an optical isolation element can be applied, for example, to the fields of optical communication or laser optics, security and privacy protection, and members for brightness enhancement in displays or military products requiring hiding and covering, and the like.

An optical system includes a light source configured to emit irradiation light, an optical modulation element having a plurality of reflection planes by which an incident light is reflected in a different direction, and an optical element having an interface through which the irradiation light emitted from the light source is emitted to the optical modulation element as the incident light and a first exit light reflected by the optical modulation element in a first direction is guided to a projection surface. Each one of the plurality of reflection planes is inclined with reference to a surface of the optical modulation element to reflect the incident light as the first exit light, and the surface of the optical modulation element is inclined with reference to the interface.

An optical system includes a light source configured to emit irradiation light, an optical modulation element having a plurality of reflection planes by which an incident light is reflected in a different direction, and an optical element having an interface through which the irradiation light emitted from the light source is emitted to the optical modulation element as the incident light and a first exit light reflected by the optical modulation element in a first direction is guided to a projection surface. Each one of the plurality of reflection planes is inclined with reference to a surface of the optical modulation element to reflect the incident light as the first exit light, and the surface of the optical modulation element is inclined with reference to the interface.