Abstract: An EL light-emitting element is driven digitally to reduce power consumption using a pixel having three transistors and two capacitors. A reset transistor for diode connection writes the threshold voltage of the drive transistor onto a coupling capacitor. The data voltage plus threshold voltage is then written onto the gate of the drive transistor. This reduces the amplitude of the data voltage required, further reducing power consumption.

Abstract: To alleviate an afterimage phenomenon caused by a hysteresis characteristic of a drive TFT, current driven type light emitting elements are provided for each of the pixels arranged in a matrix, and current through the light emitting elements is controlled using drive TFTs that operate by receiving a data voltage on a gate. At least two power supply voltages for supply to each pixel are provided, one being set to a voltage such that current corresponding to a data voltage flows in the drive TFT, the other being set to a voltage beyond a variation range of data voltage and that reverse biases the drive TFT, and the two power supply voltages are switched and supplied to each pixel.

Abstract: An EL light-emitting element is driven digitally to reduce power consumption using a pixel having three transistors and two capacitors. A reset transistor for diode connection writes the threshold voltage of the drive transistor onto a coupling capacitor. The data voltage plus threshold voltage is then written onto the gate of the drive transistor. This reduces the amplitude of the data voltage required, further reducing power consumption.

Abstract: To alleviate an afterimage phenomenon caused by a hysteresis characteristic of a drive transistor. Current driven type light emitting elements 3 are provided for each of pixels 6 that are arranged in a matrix shape, and current of the light emitting elements 3 is controlled using drive TFTs 2 that operate by receiving data voltage on a gate. At least two power supply voltages (PVDDa, PVDDb) for supply to each pixel are provided, one being set to a voltage such that current corresponding to a data voltage flows in the drive TFT 2, the other being set to a voltage beyond a variation range of data voltage and that reverse biases the drive TFT 2, and the two power supply voltages are switched and supplied to each pixel 6.

Abstract: An EL light-emitting element is driven digitally to reduce power consumption using a pixel having three transistors and two capacitors. A reset transistor for diode connection writes the threshold voltage of the drive transistor onto a coupling capacitor. The data voltage plus threshold voltage is then written onto the gate of the drive transistor. This reduces the amplitude of the data voltage required, further reducing power consumption.

Abstract: To reduce the number of sub-frames and perform high resolution display with low power consumption, each of the pixels has a digital emission period Td and an analog emission period Ta, and is driven in a time-divided fashion in a digital manner or in an analog manner. Each of the pixels performs high resolution display when being driven in an analog manner, and performs display with low power consumption when being driven in a digital manner.

Abstract: To construct a data driver which is not easily affected by variations in transistor characteristics, a plurality of coupling capacitances are connected to a data enable line which may be set to at least two voltages. A plurality of bit transistors which are turned on and off in accordance with the display data of a plurality of bits controls the connection between the plurality of coupling capacitances and data enable line to control the total capacitance of the plurality of coupling capacitances. The display element operates in accordance with the voltage accumulated to the total capacitance of the coupling capacitance according to the difference between the two voltages which may be set on the data enable line. By the operations above, a display is controlled by multi-bit display data for each pixel.

Abstract: [Problem to be solved] Obtain a constitution for a data driver which does not easily affected by transistor characteristics. [Solution] A plurality of coupling capacitances 7 is connected to data enable lines which is equipped to at least two set potentials. A plurality of bit transistors 6 which is turned on and off in accordance with the display data of a plurality of bits controls the relation of connection between a plurality of coupling capacitances and data enable lines to control the total capacitance of the said plurality of coupling capacitances. Display element operates in accordance with the voltage accumulated to the total capacitance of the said coupling capacitance according to the difference between the two set potentials equipped to the data enable line. By the operations above, a display is controlled by multi-bit display data per each pixel.

Abstract: To reduce the number of sub-frames and perform high resolution display with low power consumption, each of the pixels has a digital emission period Td and an analog emission period Ta, and is driven in a time-divided fashion in a digital manner or in an analog manner. Each of the pixels performs high resolution display when being driven in an analog manner, and performs display with low power consumption when being driven in a digital manner.

Abstract: A display device which effectively reduces the occurrences of a false contour is provided. A driver digitally drives each pixel by obtaining a plurality of bit data from pixel data for one pixel to assign the plurality of bit data to a corresponding subframe; configuring one frame with a predetermined number of unit frames; and supplying corresponding bit data in each unit frame to each pixel. Specifically, an analyzing circuit 5-5 predicts a probability of occurrence of a false contour in one screen of the video signal based on the presence or absence of a true contour. A display method based on the video signal is set in accordance with an analysis result.

Abstract: In order to efficiently execute threshold value compensation for a driving transistor, a coupling capacitor has one end connected to a data line. Another end of the coupling capacitor is connected to a selection transistor and one end of a reset transistor. A control terminal of a driving transistor is connected to the other end of the selection transistor, and an organic EL element is connected to this driving transistor via a light emission control transistor. A data voltage, corresponding to a gradation signal supplied to the data line, is written to a storage capacitor via the coupling capacitor, and with the selection transistor and the light emission control transistor in an off state and the reset transistor turned on, a compensation voltage corresponding to a degree of mobility of the driving transistor is written to the coupling capacitor.

Abstract: A display device which effectively reduces the occurrences of a false contour is provided. A driver digitally drives each pixel by obtaining a plurality of bit data from pixel data for one pixel to assign the plurality of bit data to a corresponding subframe; configuring one frame with a predetermined number of unit frames; and supplying corresponding bit data in each unit frame to each pixel. Specifically, an analyzing circuit 5-5 predicts a probability of occurrence of a false contour in one screen of the video signal based on the presence or absence of a true contour. A display method based on the video signal is set in accordance with an analysis result.

Abstract: To reduce the number of sub-frames and perform high resolution display with low power consumption, each of the pixels has a digital emission period Td and an analog emission period Ta, and is driven in a time-divided fashion in a digital manner or in an analog manner. Each of the pixels performs high resolution display when being driven in an analog manner, and performs display with low power consumption when being driven in a digital manner.

Abstract: An EL light-emitting element is driven digitally to reduce power consumption using a pixel having three transistors and two capacitors. A reset transistor for diode connection writes the threshold voltage of the drive transistor onto a coupling capacitor. The data voltage plus threshold voltage is then written onto the gate of the drive transistor. This reduces the amplitude of the data voltage required, further reducing power consumption.

Abstract: In order to efficiently execute threshold value compensation for a driving transistor, a coupling capacitor (6) has one end connected to a data line (8). Another end of the coupling capacitor (6) is connected to a selection transistor (3) and one end of a reset transistor (4). A control terminal of a driving transistor (2) is connected to the other end of the selection transistor (3), and an organic EL element (1) is connected to this driving transistor via a light emission control transistor (5). A data voltage, corresponding to a gradation signal supplied to the data line (8), is written to a storage capacitor (7) via the coupling capacitor (6), and with the selection transistor (3) and the light emission control transistor (5) in an off state and the reset transistor (4) turned on, a compensation voltage corresponding to a degree of mobility of the driving transistor (2) is written to the coupling capacitor (6).

Abstract: A display device which effectively reduces the occurrences of a false contour is provided. A driver digitally drives each pixel by obtaining a plurality of bit data from pixel data for one pixel to assign the plurality of bit data to a corresponding subframe; configuring one frame with a predetermined number of unit frames; and supplying corresponding bit data in each unit frame to each pixel. Specifically, an analyzing circuit 5-5 predicts a probability of occurrence of a false contour in one screen of the video signal based on the presence or absence of a true contour. A display method based on the video signal is set in accordance with an analysis result.

Abstract: A pixel circuit for an electroluminescent element with a first storage capacitor formed overlapping a data line and which comprises a section where a semiconductor thin film constituting the switching transistor or the reset transistor extends, an insulating film, and a metal layer which is connected to the data line as a first terminal. A first terminal of a switching transistor and a first terminal of a reset transistor are connected to the second terminal of the first storage capacitor. The second terminal of the switching transistor is connected to a driving transistor. A second storage capacitor connects the control terminal and the first terminal of the switching transistor. The electroluminescent element is connected to the second terminal of the driving transistor through a light emission controlling transistor.

Abstract: A display device, includes an active matrix display array including pixel circuits arranged in a matrix of columns and rows, each pixel circuit having a current-driven diode emissive element, and a plurality of thin film transistors for controlling the diode emissive element; a data line provided corresponding to each column of the matrix for supplying a data signal to a pixel circuit in the corresponding column; a data driver for controlling supply of the data signal to the data line; a select line provided corresponding to each row of the matrix for supplying a select signal to the pixel circuit in the corresponding row; and a gate driver for supplying the select signal to the select line; wherein the data signal is a digital signal indicating “1” or “0” as to whether or not to supply ON or drive current to the diode emissive element.

Abstract: To alleviate an afterimage phenomenon caused by a hysteresis characteristic of a drive transistor. Current driven type light emitting elements 3 are provided for each of pixels 6 that are arranged in a matrix shape, and current of the light emitting elements 3 is controlled using drive TFTs 2 that operate by receiving data voltage on a gate. At least two power supply voltages (PVDDa, PVDDb) for supply to each pixel are provided, one being set to a voltage such that current corresponding to a data voltage flows in the drive TFT 2, the other being set to a voltage beyond a variation range of data voltage and that reverse biases the drive TFT 2, and the two power supply voltages are switched and supplied to each pixel 6.

Abstract: [Problem to be solved] Obtain a constitution for a data driver which does not easily affected by transistor characteristics. [Solution] A plurality of coupling capacitances 7 is connected to data enable lines which is equipped to at least two set potentials. A plurality of bit transistors 6 which is turned on and off in accordance with the display data of a plurality of bits controls the relation of connection between a plurality of coupling capacitances and data enable lines to control the total capacitance of the said plurality of coupling capacitances. Display element operates in accordance with the voltage accumulated to the total capacitance of the said coupling capacitance according to the difference between the two set potentials equipped to the data enable line. By the operations above, a display is controlled by multi-bit display data per each pixel.