摘要:
An image forming apparatus including: a reflection member to reflect light at a first position spaced a predetermined distance from a scan glass; a moving unit to move the reflection member between the first position and a second position; and a control unit to generate initial reference data from an image signal transmitted from a scanning device to receive the light reflected by the reflection member. When the initial reference data is not suitable for shading correction, the control unit controls the moving unit to move the reflection member to the second position for reference data reacquisition.
摘要:
An organic light emitting diode display device capable of reducing power consumption by limiting a current to lower the total luminance if an area exhibiting a high luminance is larger than a threshold, and a driving method thereof are disclosed. The device includes a luminance controller for controlling an emission time of the pixel unit by determining a luminance limit of the pixel unit corresponding to a sum of the values of the video data input into one frame; and a power source controller for controlling driving of the luminance controller to correspond to the luminance limit of the pixel unit.
摘要:
An organic light emitting display device is provided. The device includes a photo sensor adapted to: sense a brightness of ambient light; output a pulse width of an emission control signal corresponding to a sensed brightness of the ambient light; and output a gamma compensation coefficient corresponding to the sensed brightness of the ambient light and a user selected brightness. The device also includes a gamma compensation circuit adapted to adjust a magnitude of a voltage between a plurality of gradation voltages according to the output gamma compensation coefficient. The device also includes a scan driver and a data driver. The device also includes a pixel portion including a pixel adapted to: emit light according to the data signal, the scan signal, and the emission control signal; and display an image corresponding to the user selected brightness.
摘要:
A light emitting display and a driving method thereof. The light emitting display includes an image displaying part including a plurality of pixels electrically connected to a plurality of scan lines, a plurality of data lines, and a plurality of emission control lines. A controller generates a start signal having a pulse width corresponding to a number of ‘1s’ or ‘0s’ of video data. A data driver converts the video data into a data signal to supply the data signal to the data lines. A scan driver supplies a scan signal to the scan lines, and an emission control signal supplier generates an emission control signal for controlling an emitting period of at least one of the pixels in response to a start signal supplied from the controller and supplies the emission control signal to the emission control lines.
摘要:
The present invention relates to a process for the preparation of 4-aminomethyl-3-alkoxyiminopyrrolidine methane-sulfonate, a key intermediate of quinolone antibiotics. According to the process of the present invention, the total number of steps has been shortened to 2-3 steps, the solid separation is not required, and the use of costly chemicals, particularly (BOC)2O (t-butoxycarbonyl anhydride), several organic solvents and reactants, is eliminated.
摘要翻译:本发明涉及制备喹诺酮抗生素关键中间体的4-氨基甲基-3-烷氧基亚氨基吡咯烷甲磺酸盐的方法。 根据本发明的方法,步骤总数已经缩短到2-3个步骤,不需要固体分离,并且使用昂贵的化学品,特别是(BOC)2 O (叔丁氧基羰基酐),几种有机溶剂和反应物。