Sharp Kabushiki Kaisha Corporation

Seiji Ohhashi

Tsuyoshi Kamada

Shohei Katsuta

Tetsuya Ide

Takahiro Senda

Hideki Uchida

Toshihiro Ohba

Yasuyuki Umenaka

A solar cell module, a solar cell module assembly, and a solar photovoltaic power generation system capable of reducing power loss are provided. A light-concentrating panel configured to collect light which is incident from the outside and a plurality of solar cell elements installed on the light-concentrating panel and configured to receive light which is collected by the light-concentrating panel are provided. Each of the plurality of solar cell elements is provided with a positive terminal and a negative terminal. The plurality of solar cell elements include a first solar cell element and a second solar cell element which are connected to each other in series via connection wiring and a third solar cell element which is not connected to the first solar cell element and the second solar cell element in series. The first solar cell element and the second solar cell element configure a first current path, and the third solar cell element configures a second current path.

Solar cell module, solar cell module assembly, and solar photovoltaic power generation system

A liquid crystal display device () includes a plurality of pixels disposed in a matrix form. The liquid crystal display device () is driven such that, after a common data voltage is applied to liquid crystal layers of sub pixels disposed in each of the pixels, the transmittance of the liquid crystal layer of a sub pixel which is positioned closest to a boundary between a retarder plate (RR) and a retarder plate (RL) will be decreased. The maximum value of the transmittance of the liquid crystal layers of the sub pixels in a first display mode is smaller than that in a second display mode.

Liquid crystal display device, driving method, and display apparatus

An LCD device () includes a liquid crystal display panel () and a liquid crystal driving section () for driving the liquid crystal display panel () from a region with a lower temperature to a region with a higher temperature in in-screen temperature distribution of the liquid crystal display panel () in operation. This configuration allows a scan direction () in which the liquid crystal display panel () is driven to correspond to temperature distribution direction () from a portion with a lower temperature to a portion with a higher temperature. As a result, image quality of images to be displayed by the general-purpose liquid crystal display panel () is improved.

LCD device

A liquid crystal display device () includes a liquid crystal panel having a plurality of pixels disposed in a matrix form, and a patterned retarder having retarder plates (RR) and retarder plates (RL) formed at positions corresponding to odd-numbered rows and even-numbered rows, respectively, of the liquid crystal panel. Among sub pixels disposed in the pixels positioned in the n-th row, a sub pixel electrode of a boundary-proximity sub pixel, which is positioned closest to a boundary between the associated retarder plate (RR) and the associated retarder plate (RL), is connected to an auxiliary bus line via a transistor having a gate electrode connected to a gate bus line in the (n&#x2212;1)-th or prior row. In the second display mode, gate signals are sequentially supplied to the gate bus lines in order from the first to the N-th rows, and, in the first display mode, gate signals are sequentially supplied to the gate bus lines in order from the N-th to the first rows.

Liquid crystal display device and display apparatus

A liquid crystal display device includes: a first substrate, on which a reference potential trunk line that supplies a reference potential to a plurality of sub-pixels and a switching element of each of the plurality of sub-pixels, are disposed; and a second substrate, on which a display signal line that supplies a display signal, is disposed. A liquid crystal capacitance of each of the plurality of sub-pixels is formed between the first substrate and the second substrate. Pixels composed of the plurality of sub-pixels that correspond to a plurality of luminance regions are arranged in a matrix. In case that a prescribed half-tone is displayed in between pixels that are adjacent in the row direction, the plurality of sub-pixels that correspond to the same luminance region are arranged adjacently in the row direction.

Liquid crystal display device

Provided is a pixel circuit which includes a plurality of subpixel circuits and which makes it possible to suppress overshooting of electric potentials of the subpixel circuits to a small level. A pixel circuit (PIX) includes a first subpixel circuit (PIXA) and a second subpixel circuit (PIXB). The first subpixel circuit (PIXA) includes a first display element (ClcA), a first node (nA), a first external connection terminal (P), and a first switching element (T). The second subpixel circuit (PIXB) includes a second display element (ClcB), a second node (nB), a second external connection terminal (P), a third external connection terminal (P), a second switching element (T), and a third switching element (T). The first node (nA) and the second node (nB) are connected to each other via a first capacitor (C).

Pixel circuit, display device, and method for driving display device

Switching TFTs are controlled to a conducting state and a switching TFT to a non-conducting state, to provide a potential according to a threshold voltage to a gate terminal of a driving TFT. Then, in at least one embodiment, with the TFT maintaining the conducting state, a potential of a data line Sj is changed from a reference potential Vpc to a data potential Vdata to place the TFT in a conducting state. At this time, a current Ia flows and thus the gate terminal potential of the TFT rises. The higher the mobility of the TFT, the larger the amount of change in gate terminal potential and the smaller the current flowing through an organic EL element upon light emission. By this, a current that is not affected by variations in the threshold voltage of the TFT nor by variations in the mobility of the TFT flows through the organic EL element. Thus, in a current-driven type display device, variations in both the threshold voltage and mobility of a drive element are compensated for.

Display device and method of driving the same

A display device has a pixel circuit () including: a drive element () provided on a path connecting a first wiring line (Vp) to a second wiring line (Vcom), having a control terminal, a first terminal, and a second terminal, and controlling a current flowing through the path; an electro-optic element () provided in series with the drive element () on the path, being connected to the first terminal of the drive element (), and emitting light at a luminance according to the current flowing through the path; a first switching element () provided between the first terminal of the drive element () and a data line (Sj); a second switching element () provided between the control terminal and the second terminal of the drive element (); a third switching element () provided between the second terminal of the drive element () and the first wiring line (Vp); and a capacitor () provided between the control terminal of the drive element () and a third wiring line (Ui). In the display device, a potential at which a voltage applied to the electro-optic element () is a light-emission threshold voltage or less is provided to the data line (Sj), and a potential of the third wiring line (Ui) changes in two levels.

Display device, pixel circuit, and method for driving same

A display device is implemented that can suppress degradation in display quality caused by crosstalk, without causing an increase in frame size or an increase in power consumption. In an embodiment, each bistable circuit includes an output terminal that outputs a state signal; a thin film transistor having a drain terminal to which a high-level potential is provided, and a source terminal to which the output terminal is connected; a thin film transistor having a source terminal connected to a region netA connected to a gate terminal of the thin film transistor, and a gate terminal to which a clock is provided; a thin film transistor for increasing the potential of a region netZ connected to a drain terminal of the thin film transistor; and thin film transistors for decreasing the potentials of the netA, the netZ, and the output terminal, respectively.

Shift register, display device provided with same, and method of driving shift register

In a pixel circuit, a switching TFT, a driving TFT, and an organic EL elementare provided between a power supply wiring line Vp and a common cathode Vcom and a capacitorand a switching TFTare provided between a gate terminal of the driving TFTand a data line Sj. A switching TFTis provided between a connection point A between the capacitorand the switching TFTand a power supply wiring line Vr, a switching TFTis provided between the gate and drain terminals of the driving TFT, and a capacitoris provided between the gate terminal of the driving TFTand the power supply wiring line Vr. Thus, a display device is provided that can freely set a period during which variations in the threshold voltage of a drive element are compensated for, and performs high-quality display by holding a control terminal potential of the drive element during light emission from an electro-optical element.

Electric current driving type display device and pixel circuit

In one embodiment of the present invention, a driving TFT, a switching TFT, and an organic EL element are provided in series on a first path which connects a power source line and a common cathode. The switching TFT is provided on a second path which connects a node between the driving TFT and the switching TFT and a source wiring line. Further, the switching TFT is turned ON so as to cause the second path to be conductive and the switching TFT is turned OFF so that a branch extending from the node on the first path toward the organic EL element is caused to be non-conductive. As a result, it is possible to realize a display device and a driving method thereof whereby the contrast can be made higher than a conventional pixel circuit and deterioration of an electro-optical element can be suppressed.

Growing community of inventors

Osaka, Japan

Seiji Ohhashi