Abstract: A display device includes a photosensor (81) in a pixel region (1) of an active matrix substrate (100). The photosensor (81) includes a photodetection element, reset signal wiring that supplies a reset signal RS to the photosensor (81), readout signal wiring that supplies a readout signal RW to the photosensor (81), and a sensor switching element for reading out the potential of the storage node to output wiring as sensor circuit output, the potential of the storage node having changed in accordance with the amount of light received by the photodetection element in a sensing period, the sensing period being from when the reset signal is supplied until when the readout signal is supplied. The potential of wiring having a parasitic capacitance with the storage node is fixed to a predetermined potential V0 at least either one of immediately before the readout signal RW and immediately before the reset signal RS.

Abstract: In one embodiment of the present invention, a display panel drive circuit includes a plurality of circuit blocks each of which includes former circuits and latter circuits. In each of the circuit blocks in the display panel drive circuit, a signal is transmitted from the former circuits to the latter circuits. Further, the display panel drive circuit includes an inter-block shared wire which allows respective two of the circuit blocks adjacent to each other to be connected to each other. Furthermore, in the display panel drive circuit, the signal of the respective two of the circuit blocks adjacent to each other is transmitted in a time division manner, via the inter-block shared wire. This eliminates the need for an external memory or an arithmetic circuit, thereby making it possible to reduce the area of a circuit in a driver.

Abstract: The present invention aims to provide a monolithic driver-type display device capable of reducing circuit scale of a sampling circuit, and keeping low power consumption by directly driving a source driver with an externally provided video signal. In the monolithic driver-type display device having a display portion for displaying video and circuits for driving the display portion formed on the same insulating substrate, a plurality of sampling switches are provided in association with a plurality of pieces of bit data contained in externally inputted digital video signals. The sampling switches are opened/closed based on sampling signals, thereby sampling the digital video signals for each piece of the bit data and converting the signals into parallel format for output to data lines. The outputted digital video signals charge parasitic capacitances on the data lines and are held therein.

Abstract: A shield electrode is provided in the vicinity of a pixel electrode and source bus lines. The shield electrode may be provided in the same layer as gate bus lines, or in the same layer as the source bus lines. The shield electrode may be surrounded by an insulating material, or may be connected to a line other than the source bus lines. By providing the shield electrode, it is possible to reduce a source-drain parasitic capacitance between a pixel electrode and a source bus line.

Abstract: In a photosensor in the pixel region of an active matrix substrate, the potential of a storage node is read out to output wiring as sensor circuit output, the potential of the storage node having changed in accordance with the amount of light received by a photodetection element in a sensing period, the sensing period being from when a reset signal (RS) is supplied until when a readout signal (RW) is supplied. A sensor startup period whose length is greater than or equal to the length of the sensing period is provided after a sensor data unnecessary period in which the sensor circuit output is not necessary, and furthermore before a valid sensor data period in which the sensor circuit output is necessary, and the sensor circuit output is read out in the valid sensor data period from the photosensor to which the reset signal was applied in the sensor startup period.

Abstract: Outside provision of first row lines (CS(1) and CS(2)) is identical between a first picture element row (R1) and a second picture element row (R2) of each picture element row pair (20) in terms of whether each first row line is provided, with respect to picture element electrodes (ER(1), EG(1), EB(1), ER(2), EG(2), and EB(2)), so as to be closer to a photosensor circuit (SC) or farther from the photosensor circuit (SC).

Abstract: In a photosensor in the pixel region of an active matrix substrate, the potential of a storage node is read out to output wiring as sensor circuit output, the potential of the storage node having changed in accordance with the amount of light received by a photodetection element in a sensing period, the sensing period being from when a reset signal (RS) is supplied until when a readout signal (RW) is supplied. A sensor startup period whose length is greater than or equal to the length of the sensing period is provided after a sensor data unnecessary period in which the sensor circuit output is not necessary, and furthermore before a valid sensor data period in which the sensor circuit output is necessary, and the sensor circuit output is read out in the valid sensor data period from the photosensor to which the reset signal was applied in the sensor startup period.

Abstract: The present invention provides a display panel (10) of an active matrix type including a display section (12) in which pixels (30) are arranged, wherein the display section (12) includes optical sensors whose output signal is transmitted to a peripheral region (13) via a source bus line (20), wherein an optical sensor output line (50) used for the transmission of the output signal is electrically connectable with a non-optical sensor output line (52) and the display panel (10) includes an optical sensor output sharing switch (60) for switching over connection and disconnection of the optical sensor output line (50) and the non-optical sensor output line (52).

Abstract: Provided is a display device including a sensor row driver (6) which sequentially outputs a read-out signal (RW) for causing each pair of picture element area groups, which includes both a first picture element area (PIX1) and a second picture element area (PIX2) as detection picture element areas and is made up of two picture element rows, to simultaneously output a photodetection signal of each of the first picture element areas (PIX1) and a dark current detection signal of each of the second picture element areas (PIX2). In each pair of the picture element area groups, outputs of the detection picture element areas are connected to different output lines (RSL1, RSL2).

Abstract: A display device includes a photosensor (81) in a pixel region (1) of an active matrix substrate (100). The photosensor (81) includes a photodetection element, reset signal wiring that supplies a reset signal RS to the photosensor (81), readout signal wiring that supplies a readout signal RW to the photosensor (81), and a sensor switching element for reading out the potential of the storage node to output wiring as sensor circuit output, the potential of the storage node having changed in accordance with the amount of light received by the photodetection element in a sensing period, the sensing period being from when the reset signal is supplied until when the readout signal is supplied. The potential of wiring having a parasitic capacitance with the storage node is fixed to a predetermined potential V0 at least either one of immediately before the readout signal RW and immediately before the reset signal RS.

Abstract: In a multi-gap semi-transmissive liquid crystal display device, the width of a black matrix (6) is made larger above the region between adjacent ITO transparent electrodes (3) and is made smaller above the region between adjacent Al reflective electrodes (4). This enables a transmissive portion to offer a display with high contrast that does not suffer from afterimage or the like by shielding light from the domain lying between the adjacent pixels, and the reflective portion to offer a brighter display by increasing the aperture ratio thereof by making the black matrix width as small as possible or forming no black matrix.

Abstract: The present invention aims to provide a monolithic driver-type display device capable of reducing circuit scale of a sampling circuit, and keeping low power consumption by directly driving a source driver with an externally provided video signal. In the monolithic driver-type display device having a display portion for displaying video and circuits for driving the display portion formed on the same insulating substrate, a plurality of sampling switches are provided in association with a plurality of pieces of bit data contained in externally inputted digital video signals. The sampling switches are opened/closed based on sampling signals, thereby sampling the digital video signals for each piece of the bit data and converting the signals into parallel format for output to data lines. The outputted digital video signals charge parasitic capacitances on the data lines and are held therein.

Abstract: In a multi-gap semi-transmissive liquid crystal display device, the width of a black matrix (6) is made larger above the region between adjacent ITO transparent electrodes (3) and is made smaller above the region between adjacent Al reflective electrodes (4). This enables a transmissive portion to offer a display with high contrast that does not suffer from afterimage or the like by shielding light from the domain lying between the adjacent pixels, and the reflective portion to offer a brighter display by increasing the aperture ratio thereof by making the black matrix width as small as possible or forming no black matrix.

Abstract: In a multi-gap semi-transmissive liquid crystal display device, the width of a black matrix (6) is made larger above the region between adjacent ITO transparent electrodes (3) and is made smaller above the region between adjacent Al reflective electrodes (4). This enables a transmissive portion to offer a display with high contrast that does not suffer from afterimage or the like by shielding light from the domain lying between the adjacent pixels, and the reflective portion to offer a brighter display by increasing the aperture ratio thereof by making the black matrix width as small as possible or forming no black matrix.

Abstract: In one embodiment of the invention, a capacitor is provided between a node and a negative-side input terminal of a differential amplifier. A switch SW11 is provided between the negative-side input terminal and an output terminal of the differential amplifier. A switch SW12 is provided between the node and the output terminal of the differential amplifier. Switches SW13 to SW16 are provided for switching between a voltage of the node and a positive-side input voltage of the differential amplifier. The switches SW11 and SW12 are on during different periods. In a positive polarity mode, the switches SW13 and SW16 are when the switch SW11 is on while the switch SW16 is on when the switch SW12 is on. In a negative polarity mode, the switches SW14 and SW15 are on when the switch SW11 is on while the switch SW16 is on when the switch SW12 is on. Thus, two types of gradation voltages each required for AC drive of a liquid crystal can be generated with a small circuit scale.

Abstract: A first electrode substrate of the present invention includes a first signal line, a second signal line, a third signal line, a first pixel electrode, a second pixel electrode, and a third pixel electrode. The first signal line, the second signal line and the third signal line extend in a first direction and in parallel to one another. The first pixel electrode is electrically connected to the first signal line. The second pixel electrode is adjacent to the first pixel electrode in the first direction, and is electrically connected to the second signal line. The third pixel electrode is adjacent to the second pixel electrode in the row direction, crossing the first direction, via the second signal line therebetween, and is electrically connected to the third signal line.

Abstract: In one embodiment of the present invention, a display panel drive circuit includes a plurality of circuit blocks each of which includes former circuits and latter circuits. In each of the circuit blocks in the display panel drive circuit, a signal is transmitted from the former circuits to the latter circuits. Further, the display panel drive circuit includes an inter-block shared wire which allows respective two of the circuit blocks adjacent to each other to be connected to each other. Furthermore, in the display panel drive circuit, the signal of the respective two of the circuit blocks adjacent to each other is transmitted in a time division manner, via the inter-block shared wire. This eliminates the need for an external memory or an arithmetic circuit, thereby making it possible to reduce the area of a circuit in a driver.

Abstract: In a multi-gap semi-transmissive liquid crystal display device, the width of a black matrix (6) is made larger above the region between adjacent ITO transparent electrodes (3) and is made smaller above the region between adjacent Al reflective electrodes (4). This enables a transmissive portion to offer a display with high contrast that does not suffer from afterimage or the like by shielding light from the domain lying between the adjacent pixels, and the reflective portion to offer a brighter display by increasing the aperture ratio thereof by making the black matrix width as small as possible or forming no black matrix.

Abstract: In one embodiment of the present invention, a voltage source is disclosed including a lower output impedance is connected to a capacitive load via a switch element and a voltage source including a higher output impedance is connected to the capacitive load via a switch element. Until a potential of an output terminal attains a reference potential, a comparator keeps the switch element in an ON state so that the voltage source writes a potential onto the capacitive load. When the potential of the output terminal exceeds the reference potential, the comparator causes the switch element to be in an ON state so that the voltage source writes a potential onto the capacitive load so as to have a predetermined potential.

Abstract: In a multi-gap semi-transmissive liquid crystal display device, the width of a black matrix (6) is made larger above the region between adjacent ITO transparent electrodes (3) and is made smaller above the region between adjacent Al reflective electrodes (4). This enables a transmissive portion to offer a display with high contrast that does not suffer from afterimage or the like by shielding light from the domain lying between the adjacent pixels, and the reflective portion to offer a brighter display by increasing the aperture ratio thereof by making the black matrix width as small as possible or forming no black matrix.