摘要:
Provided are a light emitting device, a method of fabricating the light emitting device, a light emitting device package, and a lighting system. The light emitting device comprises a first conductive type semiconductor layer, a light emitting layer over the first conductive type semiconductor layer, an electron blocking layer over the light emitting layer, and a second conductive type semiconductor layer over the electron blocking layer. The electron blocking layer comprises a pattern having a height difference.
摘要:
Disclosed are a light emitting device, a method of manufacturing the same, a light emitting device package, and a lighting system. The light emitting device includes: a substrate; a first conductive semiconductor layer on the substrate; an active layer on the first conductive semiconductor layer; a second conductive semiconductor layer; and a nitride semiconductor layer having a refractive index less than a refractive index of the second conductive semiconductor layer on the second conductive semiconductor layer.
摘要:
A vehicle, vehicle control apparatus and method of a telematics terminal are disclosed to allow a user to quickly determine and cope with a vehicle event. The vehicle control method includes: when an event informing about a vehicle event occurs, transmitting notification information corresponding to the event and/or control information previously determined for processing the event to a mobile communication terminal via a wireless communication network; and when user request information with respect to the control information is received from the mobile communication terminal, controlling a vehicle according to the received user request information.
摘要:
In this etching method, since an etching gas is introduced before introduction of free radicals into a processing chamber, the etching gas has been adsorbed on the surface of substrates when the free radicals are introduced. Accordingly, the free radicals react with the etching gas adsorbed on the surface of the substrates, and the reaction proceeds uniformly on the surface of the substrate. As a result, nonuniform etching does not occur on the surface of the substrate. Moreover, since the reaction between the etching gas and the free radicals occurs on the surface of the substrate, an intermediate product produced according to the reaction between the etching gas and the free radicals reacts with an etching object promptly. Therefore, the intermediate product is not exhausted from the processing chamber 12 excessively, and hence the etching efficiency is high. As a result, according to this etching method, not only the in-plane distribution of the etching amount becomes more uniform, but also the etching rate is increased more than in the conventional etching method.
摘要:
An imaging apparatus and method provides a wide dynamic range and is capable of displaying an improved color in low-luminance regions, and an image signal processing method thereof. In the imaging apparatus, a first process divides the voltage level of an analog image signal into a plurality of sections and amplifies the analog image signal with a plurality of different gains according to each section, and a second process converts the analog image signal amplified with the different gains into a digital signal, and non-linearly gamma-corrects the digital signal according to each section. The plurality of different gains may be inversely proportional to the luminance level of the analog image signal. Thus, the level of an analog signal in a low-luminance region is amplified with a gain greater than in a high-luminance region before gamma correction, so that signal-to-noise (S/N) ratio in the low-luminance region of an image is increased, thereby improving sensitivity of the image following gamma correction. Accordingly, a wide dynamic range is provided. An optional chrominance controller of the imaging apparatus controls chrominance gain of the digital signal and outputs the result, thereby displaying an improved color in low-luminance regions of the image.
摘要:
In this etching method, since an etching gas is introduced before introduction of free radicals into a processing chamber, the etching gas has been adsorbed on the surface of substrates when the free radicals are introduced. Accordingly, the free radicals react with the etching gas adsorbed on the surface of the substrates, and the reaction proceeds uniformly on the surface of the substrate. As a result, nonuniform etching does not occur on the surface of the substrate. Moreover, since the reaction between the etching gas and the free radicals occurs on the surface of the substrate, an intermediate product produced according to the reaction between the etching gas and the free radicals reacts with an etching object promptly. Therefore, the intermediate product is not exhausted from the processing chamber 12 excessively, and hence the etching efficiency is high. As a result, according to this etching method, not only the in-plane distribution of the etching amount becomes more uniform, but also the etching rate is increased more than in the conventional etching method.
摘要:
A motion correction device for images recorded by a camcorder from incident light having an incident direction. The device comprises at least one of horizontal and vertical component pick-ups. Each component pick-up comprises a converter for converting light into electrical signals, and a thin transmitter-reflector for transmitting a portion of the incident light at substantially the incident direction and for reflecting a remaining portion of the incident light at a range of other directions such that substantially all the reflected light impinges on the converter. The thin transmitter-reflector may be a curved transmission mirror for focusing the reflected light on the converter or a flat transmitter-reflector with a condenser disposed between the thin transmitter-reflector and the converter for focusing the reflected light onto the converter.
摘要:
A device and method for detecting a motion vector of an image. The device comprises a horizontal edge extractor, a one-line accumulator, a delay register, a vertical line memory, a sign decision memory, a vertical correlation arithmetic unit, a horizontal edge extractor, a first horizontal line memory, a second horizontal line memory, a comparator, and a horizontal correlation arithmetic unit. Directional edges are used to enhance the accuracy of a motion vector. Since correlation values are calculated as soon as a scan is completed for a field image, it is possible to detect a motion vector at high speed. The device realizes a simple circuit by economizing memory.
摘要:
Provided are a light emitting device, a method of fabricating the light emitting device, a light emitting device package, and a lighting system. The light emitting device comprises a substrate, a first semiconductor layer containing indium (In) over the substrate, and a light emitting structure over the first semiconductor layer. A dislocation mode is disposed on a top surface of the first semiconductor layer.
摘要:
Provided are a light emitting device, a method of fabricating the light emitting device, a light emitting device package, and a lighting system. The light emitting device comprises a first conductive type semiconductor layer, a light emitting layer over the first conductive type semiconductor layer, an electron blocking layer over the light emitting layer, and a second conductive type semiconductor layer over the electron blocking layer. The electron blocking layer comprises a pattern having a height difference.