Abstract: A lens, an optical display device including the lens, and a method for manufacturing the lens. The lens includes at least two lens portions; which have different focal lengths. When human eyes view a real scene image through the at least two lens portions separately, the real scene image is imaged at different image distances. The lens includes different lens portions having different focal lens, and thus can be a multi-focus lens. When the lens is used for an optical display device, the human eyes will see virtual image planes at different distances when viewing a display picture through the different lens portions due to the different focal lengths of the different lens portions. Visual fatigue can be reduced, and also scene images at difference distances can be appropriated, so that the three-dimensional feeling is improved.

Abstract: A head-mounted virtual reality display device, a method for measuring position and posture of the head-mounted virtual reality display device and a virtual reality display apparatus are provided. The head-mounted virtual reality display device includes: a body; and at least four infrared light reflectors arranged on an outer face of the body and configured to retroreflect an infrared light beam, wherein the at least four infrared light reflectors are not co-planar.

Abstract: A display device includes a transparent display screen, and a first lens group that converges light. The transparent display screen intersects a main optical axis of the first lens group, a distance between the transparent display screen and the first lens group along the main optical axis of the first lens group is less than a focal length of the first lens group, such that, both a display image on the transparent display screen and an environmental image through the transparent display screen and the first lens group or through the first lens group can be observed at an observation position that is located on the main optical axis of the first lens group. Both the observation position and the first lens group are located at a same side of the transparent display screen, and the observation position is farther from the transparent display screen than the first lens group.

Abstract: A display device and a display method are provided. The display device includes a first screen and a first reflector on a light emission side of the first screen; the first screen and the first reflector are in a first light path; the display device further includes a second screen and a second reflector on a light emission side of the second screen; the second screen and the second reflector are in a second light path; the first light path and the second light path converge in a first position.

Abstract: The present disclosure provides a display device, an optical system, and a virtual reality head-mounted display device. The display device includes a display part, which can emit image light for forming an image from a light emission surface of the display part. The display device includes a polarization modulation part. The polarization modulation part is arranged on the light emission surface of the display part, and can receive the image light emitted from the display part, and be controlled in a time division multiplexing manner to modulate the image light emitted from the display part to generate at least two types of modulated light in a form of polarized light having different polarization directions.

Abstract: A display device includes a transparent display screen, and a first lens group that converges light. The transparent display screen intersects a main optical axis of the first lens group, a distance between the transparent display screen and the first lens group along the main optical axis of the first lens group is less than a focal length of the first lens group, such that, both a display image on the transparent display screen and an environmental image through the transparent display screen and the first lens group or through the first lens group can be observed at an observation position that is located on the main optical axis of the first lens group. Both the observation position and the first lens group are located at a same side of the transparent display screen, and the observation position is farther from the transparent display screen than the first lens group.

Abstract: A light guiding component is provided in an eyeball tracking module, and which includes a first substrate and a second substrate disposed opposite to each other, a first electrode disposed on the first substrate, a second electrode disposed on the second substrate, and at least one liquid crystal structure disposed between the first electrode and the second electrode. The liquid crystal structure includes liquid crystal molecules. The first electrode and the second electrode are configured to control a deflection direction of the liquid crystal molecules with an applied voltage, such that a light ray incident to the light guiding component which meets a threshold condition, is emitted along a predetermined direction.

Abstract: The present disclosure relates to a virtual reality display device and an adaptive parallax adjustment method for the virtual reality display device, which belong to the display technical field. The adaptive parallax adjustment method includes: obtaining pupil distance information of a user; and adjusting a position of a to-be-displayed image on a display screen according to the pupil distance information.

Abstract: The present disclosure provides an optical lens, glasses and a display device. The optical lens includes: a first surface, a second surface, a first lens portion and a second lens portion. The optical lens is a convex lens. The first surface and the second surface are at two side surfaces of the optical lens. The first surface is a convex aspheric surface, and the second surface is a Fresnel surface with a recessed curved base. The first lens portion and the second lens portion are adjacent each other and connected in a direction perpendicular to a main optical axis of the optical lens. A first focal point of the first lens portion and a second focal point of the second lens portion are on the main optical axis, and a focal length of the second lens portion is greater than a focal length of the first lens portion.

Abstract: A support frame, a display device and mounting method thereof. The support frame includes a main body and a protrusion disposed at a side of the main body; the main body includes a first portion located on the protrusion and a second portion located under the protrusion, a thickness of the first portion is at least equal to a thickness of a touch cover plate; a thickness of the second portion is at least equal to a thickness of a backlight module; and a thickness of the protrusion is at least equal to a thickness of a display panel.

Abstract: A backlight source includes: an LED light source for emitting a visible light, a light guide plate and an infrared quantum point, wherein the LED light source is arranged on a light incidence side of the light guide plate and the infrared quantum point is arranged on at least one face of the light guide plate. And the infrared quantum point is excited by a part of the visible light emitted from the LED light source to emit an infrared light. The other part of visible light emitted from the LED light source exits uniformly a light exit face of the light guide plate along with the infrared light. The infrared quantum point is arranged on at least one face of the light guide plate other than the light incidence face and the light exit face.

Abstract: This disclosure relates to a light modulation panel and a display device. The light modulation panel comprises: a color separation grating plate having a plurality of light-transmissive microstructures; a reception substrate located on a light exit side of the color separation grating plate and spaced away from the color separation grating plate; and an optical waveguide layer located on a light exit side of the reception substrate. According to technical solutions of this disclosure, the optical waveguide layer can modulate the exit light into collimated light. As a result, cross-color phenomenons of the display device can be effectively improved, and thereby the display quality is enhanced. In addition, by adjusting a structure of the optical waveguide layer, the exit light can also be emitted out at a preset angle such that the display device can be applied in occasions such as 2D display, 3D display or privacy protection.

Abstract: A display apparatus includes a display panel configured to output light for displaying a mixed image including a first image and a second image, and a filter device disposed at a light exit side of the display panel and including a first filter lens and a second filter lens, orthographic projections of the first and second filter lenses on a light-emitting surface of the display panel do not overlap, and wavelength ranges of light that the first filter lens allows to transmit do not overlap with wavelength ranges of light that the second filter lens allows to transmit. Wavelength ranges of light for displaying the first image are within the wavelength ranges of the light that the first filter lens allows to transmit, and wavelength ranges of light for displaying the second image are within the wavelength ranges of the light that the second filter lens allows to transmit.

Abstract: A display device and a method of controlling the same realizes a virtual reality display and an augmented reality display. The display device includes a transparent display panel, an imaging device disposed at a light-exiting side of the transparent display panel, and a light adjusting cover disposed at a side of the transparent display panel away from the light-exiting side. The transparent display panel is disposed within a focal length of the imaging device. The imaging device is configured to image pictures displayed on the transparent display panel at a side thereof away from the imaging device. The light adjusting cover is switchable between a light-transmitting state and a light-shaded state, and is capable of covering a viewing field of human eyes. The display device can perform the virtual reality display or the augmented reality display.

Abstract: Embodiments of the disclosure relate to an eye tracking device and a virtual reality imaging apparatus. The eye tracking device includes an electromagnetic radiation source configured to emit electromagnetic radiation toward an eye, a lens having a first side surface facing the eye and a second side surface opposite the first side surface, a first reflective film on the first side surface of the lens for reflecting the electromagnetic radiation, a second reflective film on the second side surface of the lens for reflecting the electromagnetic radiation, and an imaging means configured to receive the electromagnetic radiation from the eye, wherein the first reflective film and the second reflective film are positioned to direct the electromagnetic radiation from the eye to the imaging means.

Abstract: An eye tracking device and an eye tracking method applied to video glasses, and video glasses are provided. The eye tracking device includes a light source component, a reflection component, an image sensor component and a main control component. The light source component is configured to emit invisible light to an eyeball, the reflection component is configured to reflect the invisible light reflected by the eyeball, the image sensor component is configured to generate an image of the eyeball based on the invisible light reflected by the reflection component, and the main control component is coupled to the image sensor component and is configured to acquire a gaze direction based on the image of the eyeball.

Abstract: The present disclosure relates to a virtual reality display device and an adaptive parallax adjustment method for the virtual reality display device, which belong to the display technical field. The adaptive parallax adjustment method includes: obtaining pupil distance information of a user; and adjusting a position of a to-be-displayed image on a display screen according to the pupil distance information.

Abstract: The present application discloses a light emitting diode comprising a substrate; and a light emitting layer on the substrate. The light emitting layer comprises, an N-type doped layer; a quantum well active layer; and a P-type doped layer. At least one of the N-type doped layer and the P-type doped layer comprises an uneven layer adapted to concentrate light emitting from the light emitting layer.

Abstract: A display driving method and device and a display device are disclosed. The method includes: receiving an image signal to be displayed; converting the image signal to be displayed into a virtual pixel array formed by virtual sub-pixels of three colors, and determining the gray scale of each virtual sub-pixel; dividing three successive sub-pixels in a row direction into a pixel unit, and arranging a sampling area at a corresponding position of each pixel unit in the virtual pixel array; and determining the gray scale of the sub-pixel of each color in the pixel unit according to the gray scale of the virtual sub-pixel of each color covered by the sampling area.

Abstract: A lens, an optical display device including the lens, and a method for manufacturing the lens. The lens includes at least two lens portions; which have different focal lengths. When human eyes view a real scene image through the at least two lens portions separately, the real scene image is imaged at different image distances. The lens includes different lens portions having different focal lens, and thus can be a multi-focus lens. When the lens is used for an optical display device, the human eyes will see virtual image planes at different distances when viewing a display picture through the different lens portions due to the different focal lengths of the different lens portions. Visual fatigue can be reduced, and also scene images at difference distances can be appropriated, so that the three-dimensional feeling is improved.