A display device and a polarizer are provided. The display device includes a laminated polarizer and a display layer, and the polarizer includes a sensing layer and a thin film layer. The sensing layer is disposed on the thin film layer, and the sensing layer is provided with a plurality of sensing elements, a plurality of switches, and a protective layer covering the plurality of sensing elements and the plurality of switches. The sensing elements sense changes of external light to generate an induced current and to transmit the induced current to the switches, and the switches control a display change of the display layer according to the induced current.

The present disclosure provides a display substrate and a display device, belonging to the field of display technology, which can solve the problem that a splicing gap between existing adjacent display substrates of a spliced screen is relatively wide, and a narrow-bezel display cannot be realized. The display substrate of the present disclosure has a display area and a non-display area surrounding the display area; the display substrate includes a base and a plurality of pixel units located on the base and arranged in the display area; each of the pixel units includes a pixel circuit. The display substrate further includes: a light detection circuit located on the base and arranged in the non-display area; where the light detection circuit is configured to detect brightness of ambient light.

According to an aspect, a display device includes: a display panel including a display surface; a sensor configured to detect an external object in proximity to or in contact with the display surface; an ultraviolet light emitter configured to emit ultraviolet light to the display surface; and a controller configured to control an operation of the ultraviolet light emitter. The controller increases an emission amount of ultraviolet light from the ultraviolet light emitter as the object approaches the display surface, and reduces the emission amount of ultraviolet light from the ultraviolet light emitter as the object recedes from the display surface.

A liquid-crystal display (LCD) device includes: an array substrate on which a sub-pixel is disposed; a color filter substrate on which a color filter corresponding to the sub-pixel is disposed; and a liquid-crystal layer between the array substrate and the color filter substrate. The array substrate comprises a lens hole, the color filter substrate comprises a lens hole guide, and a diameter of the lens hole is smaller than an inner diameter of the lens hole guide.

A display device includes: a backlight unit, a camera hole penetrating the backlight unit, a camera in the camera hole, a liquid crystal panel on the backlight unit, the liquid crystal panel including a transparent portion on the camera hole, and at least one light-blocking member in the camera hole, the at least one light-blocking member being configured to reduce one or more of: light leakage from the camera hole and introduction of impurities into the camera hole.

A backlight module and a liquid crystal display device are provided. The backlight module includes a first optical element which can switch between a transparent state and a scattering state, first light sources, and a light-shielding layer disposed on a light path of light emitted from the first light sources to a liquid crystal display panel. The light-shielding layer includes a plurality of gratings arranged at intervals, each of the gratings is made of a light-shielding material, and one light transmission gap is formed between any two adjacent gratings, thereby improving uniformity of backlight.

A color filter (CF) substrate, a manufacturing method thereof, a display panel, a display device and an operation method thereof are provided. The CF substrate includes: a base substrate, a CF pixel array and image sensors. The CF pixel array is provided on the base substrate and includes CF pixel units in an array. The image sensors are provided on the CF pixel array, correspond to the CF pixel units, and are configured to receive light travelling through the CF pixel units for imaging.

A display device includes a display substrate, a light emitting element layer disposed on a surface of the display substrate and including display pixels, a sensing substrate having a surface attached to another surface of the display substrate, a sensing element layer disposed on another surface of the sensing substrate and including sending pixels that each sense light of a color, and a photorefractive layer disposed on the sensing element layer and including micro lenses.

A display device includes a substrate including a first display area and a second display area. The first display area includes first pixel areas, each including one or more first pixels. The second display area includes second pixel areas including one or more second pixels and a light transmittance area having a higher light transmittance than the second pixel area. The first and second display areas include a common electrode that transmits a constant common voltage. The common electrode in the second display area includes patterned regions that correspond to a first light transmittance area included in the light transmittance area. A thickness of the common electrode in the patterned regions is smaller than a thickness of the common electrode in a region other than the patterned regions or equals zero. The patterned regions and the second pixel areas extend alternately along a first direction in the second display area.

The present disclosure provides an optical-sensing device, a manufacturing method thereof, and a display panel. The optical-sensing device includes a sensor TFT disposed on a substrate and a switch TFT connected with the sensor TFT. The sensor TFT and the switch TFT include a first active layer and a second active layer, the first active layer comprises a first IGZO layer and a perovskite layer disposed on the first IGZO layer, and the second active layer comprises a second IGZO layer.