A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary gray scale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

Techniques for holographic display by modulating optical images in amplitude and phase via a layer of liquid crystals are described. According to one aspect of the techniques, a voltage being applied or coupled across the layer of liquid crystals is controlled by gradually increasing the voltage from a low level to a high level to perform the AM in a first range and the PM in second range, where the characteristics of the liquid crystals is significant, for example, by increasing the thickness or optical birefringence of the layer of liquid crystals.

A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary grayscale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

A light emitting device including a plurality of pixels is provided. At least one of the pixels includes a light emitting unit, a first pixel driving circuit and a second pixel driving circuit. The first pixel driving circuit is configured to drive the light emitting unit. The second pixel driving circuit is configured to drive the light emitting unit. An emission period of the first pixel driving circuit is shorter than an emission period of the second pixel driving circuit.

A head-mounted display device, where when the head-mounted display device enables a low power consumption display mode, a left-eye display system and a right-eye display system alternately display an image. A switching time interval for the left-eye display system and the right-eye display system to alternately display the image is determined based on a current display mode. Different current display modes correspond to different switching time intervals, or correspond to a same switching time interval. Therefore, in the low power consumption display mode of the head-mounted display device, one display system displays the image within a same time period to reduce power consumption of the head-mounted display device.

Techniques for holographic display by modulating optical images in amplitude and phase via a layer of liquid crystals are described. According to one aspect of the techniques, a voltage being applied or coupled across the layer of liquid crystals is controlled by gradually increasing the voltage from a low level to a high level to perform the AM in a first range and the PM in second range, where the characteristics of the liquid crystals is significant, for example, by increasing the thickness or optical birefringence of the layer of liquid crystals.

The invention relates to various aspects of a μ-LED or a μ-LED array for augmented reality or lighting applications, in particular in the automotive field. The μ-LED is characterized by particularly small dimensions in the range of a few μm.

The invention relates to various aspects of a μ-LED or a μ-LED array for augmented reality or lighting applications, in particular in the automotive field. The μ-LED is characterized by particularly small dimensions in the range of a few μm.

The invention relates to various aspects of a μ-LED or a μ-LED array for augmented reality or lighting applications, in particular in the automotive field. The μ-LED is characterized by particularly small dimensions in the range of a few μm.

A light emitting device including a plurality of pixels is provided. At least one of the pixels includes a light emitting unit, a first pixel driving circuit and a second pixel driving circuit. The first pixel driving circuit is configured to drive the light emitting unit. The second pixel driving circuit is configured to drive the light emitting unit. An emission period of the first pixel driving circuit is shorter than an emission period of the second pixel driving circuit.