A light-absorbing, neutral density filter for an electronic device display. More specifically, a light-absorbing, neutral density filter applied as a shield, protective film, or protective coating layer for an electronic device display that blocks ultraviolet light, high energy visible light, and at least a portion of blue light. The neutral density filter comprises a polymer substrate and an absorbing agent.

Disclosed is a reflective display device for visible light and infrared camouflage and an active camouflage device using the same, the reflective display device including: an upper substrate formed of a transparent material; an upper electrode layer formed of a transparent material provided under the upper substrate; at least one unit cell provided under the upper electrode layer, the unit cell containing a fluid and multiple particles being charged with opposite polarities and having different quantities of electric charge or different sizes; a lower electrode layer provided under the unit cell, the lower electrode layer for generating an electric field in conjunction with the upper electrode layer and defining a pixel area; a metal layer provided under the lower electrode layer, the metal layer blocking thermal-infrared rays; and a lower substrate provided under the metal layer.

A temperature regulation system includes a laminate material that has a first light transmissive electrode layer, a rear electrode layer, and a bistable electrophoretic medium disposed between the first and second electrode layer. The electrophoretic medium includes two types of particles that have different charges and color. The amount of incident radiation (visible light, infrared, etc.) that is absorbed by the laminate can be modified by providing a voltage between the electrode layers.

An infrared reflection device includes a power supply assembly, a plurality of switches, and two relatively disposed light-transmitting conductive substrates packaging a regulating area. Each of the light-transmitting conductive substrates comprise a light-transmitting substrate and an electrode layer. The regulating area is filled with a liquid crystal mixture; the electrode layers are arranged on opposite surfaces of the two light-transmitting substrates; the electrode layer of at least one of the light-transmitting conductive substrates comprises at least two mutually independent electrode areas; and electrode areas of the same light-transmitting conductive substrate, after being respectively connected in series to the switches, are jointly connected in parallel to the same electrode of the power supply assembly.

A display apparatus includes a display panel, an optical film and a radiation element. The display panel displays an image with light. The optical film surrounds the display panel and is movable around the display device. The radiation element makes contact with the optical film to absorb heat from the optical film movable around the display panel.

A display panel includes a display layer, a photosensitive layer and an infrared mask. The display layer is configured to display an image, the display layer has light-transmitting portions, and the light-transmitting portions are configured to transmit infrared light. The photosensitive layer is disposed on a side of the display layer. The infrared mask is disposed on a side of the photosensitive layer proximate to the display layer, the infrared mask has hollowed-out regions, the hollowed-out regions are configured to make the infrared mask have a preset pattern, and a region in the infrared mask except the hollowed-out regions is configured to prevent transmission of the infrared light. The photosensitive layer is configured to receive infrared light passing though the hollowed-out regions and the light-transmitting portions, and convert the infrared light into an image signal.

A light-absorbing, neutral density filter for an electronic device display. More specifically, a light-absorbing, neutral density filter applied as a shield, protective film, or protective coating layer for an electronic device display that blocks ultraviolet light, high energy visible light, and at least a portion of blue light. The neutral density filter comprises a polymer substrate and an absorbing agent.

A quantum-dot color filter substrate and a quantum-dot liquid crystal display panel are disclosed in the present disclosure. The quantum-dot color filter substrate includes a glass substrate and a quantum-dot light conversion layer formed on the glass substrate and including a plurality of quantum-dot parts arrayed in sequence, wherein the quantum-dot parts include a red quantum-dot part, a green quantum-dot part and a blue quantum-dot part, and the red quantum-dot part and the green quantum-dot part contain infrared quantum-dot materials. In this way, the purity of lights emitted by a color filter can be improved, and displays can be made light and thin.

The present invention relates to an electronic device and a method for measuring ultraviolet light by using an electronic device including a camera. The electronic device according to various embodiments of the present invention comprises: a display; an image sensor for acquiring an image by using light including a first wavelength band or a second wavelength band; and a processor, wherein the processor can be set so as to compare a first image acquired using the light of the first wavelength band with a second image acquired using the light of the second wavelength band, acquire, on the basis of the comparison result, information on ultraviolet reflectance for at least a part of at least one subject included in the first image or the second image, and display at least a part of the acquired information on the ultraviolet reflectance by using the display.

An electrokinetic device is configured as a dynamic lens cover and/or filter for an imaging assembly, e.g., of a mobile device, to selectively allow electromagnetic radiation to pass through a lens of the imaging assembly when the dynamic lens cover is in a first operating state or to prevent electromagnetic radiation from reaching the lens of the imaging assembly when the dynamic lens cover is in a second operating state. The electrokinetic device includes transparent first and second substrates, and a compaction trench surrounding the lens of the imaging assembly. The compaction trench stores pigment when the dynamic lens cover is in the first operating state. In the second operating state pigment is dispersed within a carrier fluid between the first and second substrates.