摘要:
There is disclosed a structure for a stacked organic light emitting device in which a plurality of emissive units are disposed between the anode and the cathode. The emissive units comprise at least a hole-transport layer and an electron-transport layer. An intermediate layer is disposed between two adjacent emissive units and the intermediate layer comprises at least two sub-layers, a first sub-layer being formed of a material that can inject electrons into one emissive unit and a second sub-layer being formed of a material that can inject holes into the adjacent emissive unit. The sub-layers are formed of metals or inorganic materials only and a surface of the intermediate layer may be treated by a low pressure CF4-plasma.
摘要:
A method of reducing power consumption in a liquid crystal display illuminated by a backlight device includes dimming the backlight and adjusting the intensity of the image to compensate for the dimmed backlight. A dimming factor for the backlight is based on a clipping point determining from the pixel intensity distribution of the image signal. The intensity of the image is adjusted based on the dimming factor, wherein a first tone mapping function is used to adjust pixel intensities below an intensity threshold and a second tone mapping function is used to adjust pixel intensities above the intensity threshold