Sharp Kabushiki Kaisha Corporation

Tokihiro Yokono

Kohhei Tanaka

Kaoru Yamamoto

Takayuki Nishiyama

Ryo Yonebayashi

Keisuke Yoshida

Provided is a display device in which variation in white balance is suppressed even if wiring lines are arranged in pixels. The display device includes: gate lines; source linesS; drive elements connected to the gate lines and the source linesS; pixel electrodes connected to the drive elements; and color filters provided corresponding to the pixel electrodes. The pixel electrodes are provided in one-to-one correspondence with subpixels, and a plurality of subpixelsR,G, andB constitute one pixel. The display device further includes wiring lines L provided in a pixel region so as to extend along either the gate lines or the source lines. At least some of the wiring lines L are arranged in pixel aperture regions of the subpixels. The arrangement pitch Pof the wiring lines L is larger than the pixel pitch (3&#xd7;Sa).

Display device

The invention provides a technique inhibiting luminance unevenness among pixels. An active matrix substrate has a plurality of pixel electrodes PXB each connected to a corresponding one of gate linesand a corresponding one of source lines. The active matrix substrate includes a common electrodefacing each of the pixel electrodes PXB, and an auxiliary lineconnected to the common electrode. The active matrix substrate further includes a plurality of drive circuits disposed in part of a display region and each configured to drive a corresponding one of the gate lines. The drive circuits are each connected to a control line provided for supply of a drive signal. The drive signal has first potential and second potential lower than the first potential alternately at constant cycles. The control line has a line portionextending substantially in parallel with the gate lines. Between the line portionand a capacitance forming region r where each of the pixel electrodes PXB connected to gate lines() and(+2) switched into an unselected state during potential decrease of the line portionforms capacitance between the pixel electrode PXB and the common electrode, the auxiliary lineis connected with the common electrode

Active matrix substrate and display device including the same

The display device includes drive circuitsprovided in correspondence to the gate lines, respectively, and alternately switches a scanning period for scanning the gate lines and a non-scanning period during one vertical scanning period. The drive circuitincludes netA(n), an output switching element Mconnected to netA(n), and a reset circuit R. The output switching element Mapplies a selection voltage to the gate line GLn. The potential of netA(n) changes between a first potential that is equal to or higher than a threshold voltage of the output switching element M, and a second potential that is lower than the first potential. In the drive circuitwherein a period while netA(n) thereof has the second potential overlaps with the non-scanning period, the reset circuit R resets the potential of netA(n) to the second potential, before the resumption of the scanning period after the non-scanning period.

Display device having driving circuitry with driving gate lines

Provided is a technique of causing less display irregularities to occur when the scanning of the gate lines is resumed in a display device in which the scanning of gate lines is performed intermittently. A display device includes a display panel, and a driving circuitry that includes a plurality of drive circuits for scanning gate lines. The driving circuitry alternately switches a scanning period in which the gate lines are scanned, and a non-scanning period in which the scanning of the gate lines is suspended, during one vertical scanning period, according to a control signal. Each driving circuitincludes a first switching element N that applies a selection voltage to the gate line; an internal line netA; a second switching element A that charges the internal line netA to a first potential; and a third switching element B that includes a drain electrode connected to the internal line netA, and a source electrode having a second potential that is lower than the first potential. a drive circuit corresponding one of the gate lines that is selected at start of the scanning period includes a charging circuit() which recharges the internal line netA of this drive circuit to a potential equal to or higher than the first potential, before the start of this scanning period.

A display device includes a display panel, and drive circuits sequentially scanning gate lines and supplied with any of M-phase (M: three or greater) drive signals having different phases and a first potential or a second potential (lower) at predetermined cycles. The drive circuit includes netA(n) whose potential changes by drive signal with the first/second potential as reference, and an output circuit switching a corresponding gate line to a selected/unselected state and including first output switch including a gate connected to netA(n+1) of a first drive circuit different from the drive circuit, a drain supplied with the drive signal, and a source connected to the gate line. Difference between the potential of netA(n+1) in case of switching the gate line to the unselected/selected state and the reference potential in netA(n+1) is equal to difference between the first and second potentials or greater.

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Sakai, Japan

Tokihiro Yokono