Patent application number | Description | Published |
20150069368 | COMPOUND FOR ORGANIC PHOTOELECTRIC DEVICE AND ORGANIC PHOTOELECTRIC DEVICE INCLUDING THE SAME - A compound for an organic photoelectric device, the compound being represented by the following Chemical Formula (“CF”) 1: | 03-12-2015 |
20150162542 | COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC LIGHT EMITTING DIODE INCLUDING THE SAME AND DISPLAY INCLUDING THE ORGANIC LIGHT EMITTING DIODE - Provided are a compound for an organic optoelectronic device represented by Chemical Formula 1, an organic light emitting diode including the same, and a display device including the organic light emitting diode. The structure of Chemical Formula 1 is shown in the specification. | 06-11-2015 |
20150221874 | ORGANIC OPTOELECTRONIC ELEMENT AND DISPLAY DEVICE COMPRISING SAME - Provided are an organic optoelectronic device and a display device including the same, and the organic optoelectronic device includes an anode, a cathode and at least one organic thin layer between the anode and the cathode, wherein the organic thin layer includes an emission layer, a hole transport layer (HTL), a hole injection layer (HIL), an electron transport layer (ETL), an electron injection layer (EIL) or a combination thereof, the organic thin layer includes an emission layer and a plurality of hole transport layer (HTL), the hole transport layer (HTL) adjacent to the emission layer of the plurality of hole transport layer (HTL) includes a compound represented by Chemical Formula A-1, one of the hole transport layers (HTL) that are not adjacent to the emission layer includes a compound represented by Chemical Formula B-1. | 08-06-2015 |
20150263294 | COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE, ORGANIC LIGHT-EMITTING DEVICE INCLUDING SAME, AND DISPLAY DEVICE INCLUDING THE ORGANIC LIGHT- EMITTING DIODE - A compound for an organic optoelectronic device, an organic light-emitting device including the same, and a display device including the organic light-emitting device are disclosed, the compound for an organic optoelectronic device being represented by Chemical Formula 1, | 09-17-2015 |
Patent application number | Description | Published |
20090223542 | CLEANING APPARATUS USING ULTRASONIC WAVES - Disclosed herein is a cleaning apparatus using ultrasonic waves. The cleaning apparatus to separate contaminations from a wafer includes a housing receiving an oscillator therein, and a rod coupled to a surface of the oscillator to transmit ultrasonic waves produced from the oscillator to a cleaning solution applied onto an upper surface of the wafer. The oscillator includes a piezo-electric device bonded to a diffusive layer consisting of a near-field region and a far-field region. The rod has a diameter-reduced portion to amplify the ultrasonic waves produced from the oscillator, thereby enabling the efficient removal of the contaminations on the wafer to be cleaned. | 09-10-2009 |
20090277483 | MEGASONIC CLEANING MODULE - Disclosed herein is a megasonic cleaning module. The megasonic cleaning module includes a vibrator having a piezoelectric element mounted therein for generating ultrasonic waves by the vibration of the piezoelectric element, a first vibratory rod having a diameter gradually decreased to concentrate the longitudinal ultrasonic waves generated from the vibrator, and a second vibratory rod for progressing the longitudinal ultrasonic waves, generated from the first vibratory rod, in the transverse direction. The size of the second vibratory rod at one side thereof where the second vibratory rod is coupled to the first vibratory rod is less than that of the second vibratory rod at the other side thereof, with the result that the longitudinal ultrasonic waves are not prevented from affecting the wafer. | 11-12-2009 |
20120042913 | CLEANING APPARATUS USING ULTRASONIC WAVES - Disclosed herein is a cleaning apparatus using ultrasonic waves. The cleaning apparatus to separate contaminations from a wafer includes a housing receiving an oscillator therein, and a rod coupled to a surface of the oscillator to transmit ultrasonic waves produced from the oscillator to a cleaning solution applied onto an upper surface of the wafer. The oscillator includes a piezoelectric device bonded to a diffusive layer consisting of a near-field region and a far-field region. The rod has a diameter-reduced portion to amplify the ultrasonic waves produced from the oscillator, thereby enabling the efficient removal of the contaminations on the wafer to be cleaned. | 02-23-2012 |
20130118536 | ULTRASONIC PRECISION CLEANING APPARATUS - Disclosed is an ultrasonic cleaning apparatus, which generates uniform sound pressure across a wide area of a piezoelectric element without the sound pressure being concentrated into the middle of the piezoelectric element to thereby increase cleaning efficiency without damage of an object to be cleaned. The ultrasonic precision cleaning apparatus includes: a cleaning solution supplier for supplying a cleaning solution to an object to be cleaned; a transmitter (or transducer) having a piezoelectric element having a ceramic body and upper and lower electrodes respectively deposited to upper and lower portions of the ceramic body and producing ultrasonic waves, an ultrasonic waveguide coupled to a tip of the piezoelectric element, placed opposite to the object to be cleaned and transmitting the ultrasonic waves produced from the piezoelectric element to the object to be cleaned, a housing and a power line, wherein the piezoelectric element or the middle of the ultrasonic waveguide is formed with a vertical hole. | 05-16-2013 |