Abstract:
PROBLEM TO BE SOLVED: To manufacture a field emission display of high picture quality and high density by reducing a cost. SOLUTION: A field emission element of a pixel array 20 is constituted by a silicon field emission element formed on an insulating substrate 10 so that a complementary polycrystalline silicon thin film transistor used as a basic circuit of a scan drive circuit 30 and a data drive circuit 10 can be easily integrated in the substrate 10 formed with the pixel array 20. In each pixel of the pixel array 20, a high voltage thin film transistor is attached, by applying a display signal through the high voltage thin film transistor, generation of low voltage in the scan and data drive circuit 30, 40 is attained.
Abstract:
PROBLEM TO BE SOLVED: To provide a field emission element capable of preventing an increase in electric power consumption, and capable of improving reliability of the element. SOLUTION: In a three-pole type field emission element, the field emission element has a gate electrode 205, an emitter 204, and an anode 207, and is constituted so as to connect a resistance 209 between the gate electrode 205 and an external terminal 206 of this gate electrode. A resistance value of this resistance 209 is set so as to satisfy a condition of being larger by about 10 times or more than a resistance value up to an external terminal 206 of the gate electrode from the gate electrode 205, and smaller in characteristic time than an inverse number of a driving speed. That is, a resistance characteristic of this resistance 209 is set so as to become small such as having no influence on a field emission characteristic in normal operation, and become large such as being capable of controlling a quantity of leakage current generated in a state of electrically connecting a field emission electrode to the other electrode. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To reduce driving voltage, and to reduce electric power consumption by forming a hole of nanometer size in the first place in a manufacturing process of a semiconductor element, and increasing the aspect ratio of an emitter by forming the emitter in the hole. SOLUTION: This field emission element is composed of an emitter electrode 24 formed on a silicon substrate 21, an insulating layer 25 formed on the emitter electrode 24, a nanohole 27 formed in the nanosize in the insulating layer 25, and exposing the emitter electrode 24, a catalyst layer 28 formed on a bottom surface of the nanohole 27, the emitter 29 formed in the nanohole 27, and a gate electrode 26 formed on the insulating layer 25 around the emitter 29, and has an effect capable of reducing the driving voltage, and capable of reducing the electric power consumption by forming the hole 27 of nanometer size in a semiconductor manufacturing process, and increasing the aspect ratio of the emitter 29 by forming the emitter 29 in the nanohole 27. COPYRIGHT: (C)2003,JPO
Abstract:
The present invention relates to a method for encoding image information, to a method for decoding same, and to an apparatus using the methods. The method for decoding the image information according to one embodiment of the present invention comprises the steps of: dividing a prediction area into a first prediction area and a second prediction area according to an intra-prediction mode; performing intra prediction on, and restoration of, the first prediction area; and performing prediction on, and restoration of, the second prediction area. In the step of performing prediction on, and restoration of, the second prediction area, intra-prediction on the second prediction area can be performed with reference to a reference sample for the first prediction area or with reference to a predetermined sample in the restored first prediction area.
Abstract:
Disclosed are a method for encoding and decoding images using a plurality of reference images and a device using the method. The decoding method comprises the steps of: decoding predictive direction information; and decoding reference picture index information on the basis of said predictive direction information. Thus, the invention can increase an encoding efficiency by reducing the number of reference picture indexes.
Abstract:
Provided are a method and apparatus for encoding/decoding video. The method and apparatus of the present invention involve generating a first prediction block for a block to be decoded, calculating a filter coefficient on the basis of the block adjacent to the first prediction block, and performing filtering on the first prediction block using the filter coefficient so as to generate a second prediction block if information relating to the performance of filtering indicates that filtering should be performed. According to the present invention, accuracy in video prediction and encoding performance are improved.
Abstract:
Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction comprises the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.
Abstract:
A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
Abstract:
A method for decoding an image according to the present invention comprises the steps of: receiving a bit stream; deriving decoding information by entropy-decoding the bit stream; and generating a restoration block corresponding to a decoding target block based on the decoding information. According to the present invention, the image encoding/decoding efficiency is improved and complexity can be reduced.
Abstract:
Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.