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| 20080225023 | DRIVE CIRCUIT AND DRIVE METHOD OF LIGHT EMITTING DISPLAY APPARATUS - A drive circuit for a light emitting display apparatus including a pixel circuit having a light emitting device for emitting a light having brightness determined based on supplied current and a drive transistor for supplying the current to the light emitting device, comprises a threshold value correction circuit converting a second signal including a threshold voltage of the drive transistor and a data voltage, the second signal being output from the drive transistor when a first signal including the data voltage is input into the control electrode of the drive transistor, into a third signal including the threshold voltage of an inverted polarity and the data voltage or a voltage corresponding to the data voltage, to output the converted third signal to the pixel circuit. The pixel circuit includes a switch for supplying the third signal to the control electrode of the drive transistor. | 09-18-2008 |
| 20100194450 | THIN-FILM TRANSISTOR CIRCUIT, DRIVING METHOD THEREOF, AND LIGHT-EMITTING DISPLAY APPARATUS - In a light-emitting display apparatus including a plurality of pixels each including a light-emitting element and a driving circuit of the light-emitting element, and the driving circuit includes a plurality of thin-film transistors connected in parallel, a threshold voltage of the thin-film transistor reversibly changes according to a voltage applied between a gate and a source or between the gate and a drain of each of the thin-film transistors, by selecting and switching the plurality of thin-film transistors TFT | 08-05-2010 |
| 20110001747 | THIN FILM TRANSISTOR CIRCUIT, LIGHT EMITTING DISPLAY APPARATUS, AND DRIVING METHOD THEREOF - In order to suppress an influence of an electrical stress on a TFT characteristic in use of a TFT, a light emitting display apparatus according to the present invention comprises organic EL devices and driving circuits for driving the organic EL devices. The driving circuit includes plural pixels each having a thin film transistor of which a threshold voltage reversibly changes due to the electrical stress applied between a gate terminal and a source terminal, and a voltage applying unit which sets gate potential of the thin film transistor higher than source potential. The voltage applying unit applies the electrical stress between the gate terminal and the source terminal at a time when the thin film transistor is not driven, so as to drive the thin film transistor in a region that the threshold voltage is saturated to the electrical stress. | 01-06-2011 |
| 20110092016 | METHOD OF TREATING SEMICONDUCTOR ELEMENT - In a method of treating a semiconductor element which at least includes a semiconductor, a threshold voltage of the semiconductor element is changed by irradiating the semiconductor with light with a wavelength longer than an absorption edge wavelength of the semiconductor. The areal density of in-gap states in the semiconductor is 10 | 04-21-2011 |
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| 20100188749 | OPTICAL FILM AND METHOD FOR PRODUCTION THEREOF - The invention relates to an optical film containing polyester with a specific structure, and methods for production thereof. Further, the invention also relates to an optical laminate, a polarizing plate, and an image display device each using the optical film. The polyester may be obtained by condensation polymerization of dicarboxylic acid compound(s) and bisphenol compound(s), and preferably has no halogen atom in its chemical structure. According to the invention, high productivity of the optical film can be achieved since the polyester has a high solubility in solvents, and an environmental loading for production can be reduced. | 07-29-2010 |
| 20100304110 | OPTICAL FILM AND METHOD FOR PRODUCTION THEREOF - The invention relates to a resin solution containing polyester with a specific structure, an optical film containing said polyester, and methods for production thereof. Further, the invention also relates to an optical laminate, a polarizing plate, and an image display device each using the optical film. The polyester may be obtained by condensation polymerization of dicarboxylic acid compound(s) and bisphenol compound(s), and preferably has no halogen atom in its chemical structure. According to the invention, high productivity of the optical film can be achieved since the polyester has a high solubility in solvents, and an environmental loading for production can be reduced. | 12-02-2010 |
| 20110064930 | OPTICAL FILM AND METHOD FOR PRODUCTION THEREOF - The invention relates to an optical film containing aromatic polymer which shows high solubility to solvents, and methods for production thereof. Further, the invention also relates to an optical laminate, a polarizing plate, and an image display device each using the optical film. The optical film may be attained by using polyester with a specific structure. The polyester with a specific structure may be obtained by condensation polymerization of bisphenol compound(s) and dicarboxylic acid compound(s) with biphenyl structure, and preferably has no halogen atom in its chemical structure. The optical film of the invention advantageously has not only high solubility in solvents but also a high level of heat resistance and birefringence producing capability. When the content of the biphenyl structure is high, the optical film of the invention can also have large wavelength dispersion of birefringence. | 03-17-2011 |
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| 20090109385 | LIQUID CRYSTAL PANEL AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal panel of the present invention includes at least a liquid crystal cell, a first polarizer disposed on one side of the liquid crystal cell, a second polarizer disposed on the other side of the liquid crystal cell and a retardation film (A) disposed between the liquid crystal cell and the first polarizer, wherein the retardation film (A) contains a thermoplastic polymer having at least a substituent (a) represented by the following formula (I) and its in-plane retardation value (Re[750]) at a wavelength of 750 nm is larger than its retardation value (Re[550]) at a wavelength of 550 nm. The liquid crystal panel has such an effect that it reduces coloring of characters or images and a color shift even if a screen is viewed from any direction at an angle range of 360°. | 04-30-2009 |
| 20100265579 | OPTICAL FILM AND METHOD FOR PRODUCTION THEREOF - The invention relates to an optical film containing polymers having different repeating units, and methods for production thereof. Further, the invention also relates to an optical laminate, a polarizing plate, and an image display device each using the optical film. | 10-21-2010 |
| 20100328772 | BIREFRINGENT FILM AND POLARIZER - An ester-based polymer to be used in the present invention has at least a repeating unit represented with the general formula (I). A and B are substituents substituted on a stilbene group. R | 12-30-2010 |
| 20110013278 | BIREFRINGENT FILM, POLARIZING PLATE, IMAGE DISPLAY, AND AROMATIC POLYESTER - The birefringent film of the present invention contains an aromatic polyester having a repeating unit represented by the following general formula (1). | 01-20-2011 |
