Abstract: To provide a semiconductor light emitting device with a light extraction efficiency increased and a method for manufacturing the semiconductor light emitting device. A semiconductor light emitting device 1 includes a supporting substrate 2 and a semiconductor stack 6 including an MQW active layer 13 emitting light and an n-GaN layer 14 at the top. In the upper surface of the n-GaN layer 14 of the semiconductor attack 6, a plurality of conical protrusions 14a are formed. The protrusions 14a are formed so that an average WA of widths W of bottom surfaces of protrusions 14 satisfies: WA>=?/n, where ? is wavelength of light emitted from the active layer and n is a refractive index of the n-GaN layer 14.
Abstract: A liquid crystal display and the driving method thereof. The LCD includes a timing controller, a plurality of driver chips and a display panel. The driver chips are cascaded together for driving the display panel to display frames. A driver chip includes a differential receiver, a single-ended receiver, a shift register, a differential transmitter, a single-ended transmitter and a pixel driver. The driver chip receives a pixel signal and drives the display panel according to the pixel signal, and outputs the pixel signal to the next driver chip.
Type:
Grant
Filed:
April 15, 2009
Date of Patent:
June 12, 2012
Assignee:
AU Optronics Corp.
Inventors:
Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
Abstract: A method of manufacturing a semiconductor device on a semiconductor substrate, includes the steps of forming a first metal film on a front surface of the semiconductor substrate; forming a second metal film on the surface of the first metal film; activating a surface of the second metal film to provide an activated surface; and forming a plated film on the activated surface by a wet plating method in a plating bath that includes a reducing agent that is oxidized during plating and that has a rate of oxidation, wherein the second metal film is a metal film mainly composed of a first substance that enhances the rate of oxidation of the reducing agent in the plating bath. Wet plating is preferably an electroless process.
Abstract: Provided is a method for manufacturing a semiconductor device. The method includes: providing a first substrate where an active layer is formed on a buried insulation layer; forming a gate insulation layer on the active layer; forming a gate electrode on the gate insulation layer; forming a source/drain region on the active layer at both sides of the gate electrode; exposing the buried insulation layer around a thin film transistor (TFT) including the gate electrode and the source/drain region; forming an under cut at the bottom of the TFT by partially removing the buried insulation layer; and transferring the TFT on a second substrate.
Type:
Grant
Filed:
April 26, 2010
Date of Patent:
June 12, 2012
Assignee:
Electronics and Telecommunications Research Institute
Inventors:
Jae Bon Koo, Seung Youl Kang, In-Kyu You
Abstract: A semiconductor device of the present invention includes an insulating film made of a low dielectric constant material having a smaller specific dielectric constant than SiO2, a wiring trench formed in the insulating film, a first barrier film made of SiO2 or SiCO formed at least on the side surface of the wiring trench, Cu wiring mainly composed of Cu embedded in the wiring trench, and a second barrier film made of a compound containing Si, O and a predetermined metallic element covering the surface of the Cu wiring opposed to the wiring trench.
Abstract: A discretely addressable large-area X-ray system is provided. The large-area X-ray system can output a uniform flux of X-rays over a large area using discrete addressing operation of transistors connected to cathodes of electron emitters. Thus, when applied to a medical device, the system can minimize damage inflicted upon the human body because it enables effective imaging of only a desired specific portion of the body. Furthermore, the large-area X-ray system can be simply implemented by current switching using transistors. Thus, the system can be very easily applied to other applications.
Type:
Grant
Filed:
November 13, 2008
Date of Patent:
June 12, 2012
Assignee:
Electronics and Telecommunications Research Institute
Inventors:
Dae Jun Kim, Yoon Ho Song, Jin Woo Jeong
Abstract: A video processor includes a video filter and a calculation circuit. The video filter performs a low-pass filtering operation on first frame data to obtain brightness distribution data. The calculation circuit obtains difference data between the brightness distribution data and second frame data. The calculation circuit multiplies the difference data and a weighting parameter together to obtain a product, and then summates the product and the second frame data together to generate processed frame data.
Abstract: In a device for separating a synchronous signal in a video signal, a capacitor receives the video signal to obtain a coupling signal, a level determining circuit receives the coupling signal and compares a voltage level of the coupling signal with a number of reference voltages. The reference voltages define several reference voltage ranges, one of which is a predetermined reference voltage range. The level determining circuit outputs an adjusting signal according to a reference voltage range corresponding to a minimum voltage level of the coupling signal within a predetermined time period. A level adjusting circuit has several current sources for receiving the adjusting signal and thus controls the current sources to adjust a DC level of the coupling signal. A synchronous signal separating circuit separates the synchronous signal from the coupling signal when the minimum voltage level of the coupling signal is substantially within the predetermined reference voltage range.
Abstract: Disclosed is an alanine racemase chiral binaphthol derivative having the ability to recognize amino alcohols selectively on the basis of chirality and transform amino acids from an L-form into a D-form. Methods for the optical resolution of amino acid or amino alcohol and for the optical transformation of D- and L-forms of amino acids using the binaphthol derivative are also provided.
Abstract: A liquid crystal display and the driving method thereof. The LCD includes a timing controller, a plurality of driver chips and a display panel. The driver chips are cascaded together for driving the display panel to display frames. A driver chip includes a differential receiver, a single-ended receiver, a shift register, a differential transmitter, a single-ended transmitter and a pixel driver. The driver chip receives a pixel signal and drives the display panel according to the pixel signal, and outputs the pixel signal to the next driver chip.
Type:
Grant
Filed:
April 8, 2009
Date of Patent:
June 5, 2012
Assignee:
AU Optronics Corp.
Inventors:
Chih-Sung Wang, Chih-Hsiang Yang, Chao-Liang Lu
Abstract: A method of correcting a false-color pixel in a digital image is used to correct a false-color pixel generated after being processed by a color correction matrix (CCM). The method includes the following steps. Obtaining a raw image, for being processed by the CCM operation to generate a processed image; comparing pixels of the raw image with that of the processed image according to a color difference ratio, to find out a false-color pixel in the pixels of the processed image; then, performing a color correction on the false-color pixel at the corresponding position of the raw image and the processed image. The false-color pixel is corrected according to the pixel color at the corresponding position of the raw image.
Abstract: In a semiconductor light emitting device of junction-down type, a semiconductor light emitting element having a stripe part is provided with a bonding part for die bonding in a part of a surface thereof where the stripe part is formed, the bonding part being at a position away from the stripe part, and being junction-down bonded onto an electrode pattern on a holding substrate.
Abstract: A LED lamp and a manufacturing method thereof are disclosed. At least one blue LED chip can be used as an excitation light source. A number of red LED chips are arranged around the blue LED chip. The blue LED chip and red chips are covered with a packaging material with phosphor. The intensity of red light can be adjusted by a control circuit. Thus, the white LED lamps with high efficacy and high color rendering at different color temperatures can be achieved.
Abstract: An apparatus for modifying predicted values in a predicted image for input to a decoder starts by taking the most significant information bit plane from the predicted image and submitting it to the decoder to be decoded. Subsequent information bit planes are then taken in descending order and submitted to the decoder, but first each of these information bit planes is modified at the locations of prediction errors identified in the preceding information bit plane by comparing that information bit plane with the corresponding decoded bit plane. The modifications improve the general accuracy of the decoded image, enabling the decoder to decode the bit planes with less additional coded information than would otherwise be required. The apparatus is useful in distributed video coding systems.
Abstract: The present invention relates to a communications relay device placed between networks. The communications relay device includes a unit of translating a content of a call control packet flowing between the networks, a unit of storing translation information for translating a content of a data packet for each session, a unit of translating a data packet in accordance with the stored translation information, a unit of analyzing a content of a call control packet flowing between a first communication device placed in the first network and a communication device for call control and registering translation information, and a unit of associating two pieces of translation information generated based on call control packets relevant to a session between communication devices placed in the first network.
Abstract: Provided is an electric motor which is simple to design and manufacture, and can be operated by a small current. The electric motor is comprised of a stator 55 having a first disk 45 and a second disk 50, a first ring core 10 having a first switching winding 15 divided into a winding part and a gap part, a second ring core 12 having a second switching winding 20 divided into a winding part and a gap part, and a first rotor 35 having a third disk 25 and a second rotor 40 having a fourth disk 30 mutually connected by a driving shaft 60. The first and second switching windings 15, 20 include first and second power supplies 125-1, -2, and first and second switches 75-1, -2, respectively.
Abstract: A method for checking reading errors of a memory includes the following steps. A first data fragment is received. A first count index according to the first data fragment is generated, wherein the first count index is corresponding to a quantity of one kind of binary value in the first data fragment. The first data fragment is written into the memory. The first data fragment is read from the memory as a second data fragment. A second count index is generated according to the second data fragment. The first count index is compared with the second count index.
Abstract: A digital image composition method is adapted to eliminate a ghost image produced by a digital image-capturing apparatus due to handshakes in shooting. The method includes the steps. In a pre-shooting process, a base image and a comparison image are respectively captured. A base pixel is selected from the base image, and a core window is set with the base pixel at the center. A comparison pixel is selected from the comparison image, and a search window is set with the comparison pixel at the center. Each area of the search window is compared through the core window, and an absolute error sum value between the base image and the comparison image is calculated. It is determined how to change the brightness of the base pixel according to the normalized region difference value. The above steps are repeated to adjust each pixel in the base image.
Abstract: A decoding system generates a predicted image, receives error correcting information encoding an original image, and uses the predicted image and the error correcting information to carry out a multi-stage decoding process that reconstructs the original image by correcting prediction errors in the predicted image. This process uses correlation information representing an assumed correlation between the predicted image and the original image. As the decoding process proceeds, the correlation information is updated to reflect assumed or inferred changes in the correlation between the predicted image and the original image. Updating the correlation information permits more efficient coding by enabling the original image to be reconstructed to an acceptable level of image quality with less error correcting information.