Sanyo Electric Co., Ltd.

Kabushiki Kaisha Toyota Jidoshokki

Sanjo Electric Co., Ltd.

Mitsugu Kobayashi

Hisao Uehara

Makoto Kitagawa

Yusuke Tsutsui

Yasushi Miyajima

Ryuji Nishikawa

Masayuki Koga

Makoto Fujioka

Makoto Shimizu

Atsuyoshi Tanioka

Kazuhiko Moriwaki

Kenji Saiki

Seiji Matsuda

Takashi Ogawa

Ryoichi Yokoyama

Yukinori Kuwano

Shigeru Noguchi

Shoichi Nakano

Kaneo Watanabe

Kazuto Noritake

Toshifumi Yamaji

Takahiro Tsuzuku

Noriyuki Mori

Yuichi Hirayama

Hiroko Adaniya

Mitsuhiro Mabuchi

A control apparatusoutputs an order signal to order supply apparatuses-through-N to perform supply of a signal in a contactless manner at a respectively different timing. The control apparatusdetermines that a moving apparatusis stopped at the position of the supply apparatusbeing the output destination of the signal output order, when a wireless signal is received from the moving apparatuswithin a certain period of time after outputting the order signal. Then, the supply apparatusat the position at which the moving apparatusis ordered to start supplying a signal.

Control apparatus, control method of supply apparatus, and supply system

The first output bufferof the driving LSIoutputs the first video signal voltage V and the second output buffer outputs the second video signal voltage *V with the opposite polarity from that of the first video signal voltage. The first and the second video signal voltages V, *V are fed to the drain driverof the display panelthrough a pair of signal wirings. The drain driversupplies the first video signal voltage V to a pixel and the second video signal voltage with the opposite polarity to the pixel adjacent to the fist pixel through the drain lineand the TFT. In this way, any pair of the adjacent pixels in horizontal and vertical direction receives the video signal voltages with opposite polarities from each other.

Active matrix liquid crystal display device

When the orientation of liquid crystal molecules in a pixel are divided by an orientation divider, a boundary of the orientation is produced at any part of the pixel. A drain signal line () is formed to overlap with the boundary so that a light-shielding region in the pixel is decreased and an aperture ratio can be improved. Leakage of light caused when the orientation is disturbed can be shielded by the drain signal line (), and contrast can be enhanced. The orientation divider can be an orientation control window (), an orientation control slope () or the like.

Liquid crystal display device having particular drain lines and orientation control window

Liquid crystal display device having particular orientation control window

A power supply circuit () for a display device such as a liquid crystal outputs a boosted supply voltage VDDduring normal operation, and generates a non-boosted supply voltage VDDhaving a voltage lower than that during the normal display operation by controlling the switches for switching the output within the power supply circuit () during a power save mode. The non-boosted supply voltage is supplied to the analog circuits of a driving circuit () so that the power consumption at the analog circuits is reduced. By controlling the switch for switching the output within the power supply circuit and the supply of the power supply clock, the circuit can be switched, in the power save mode, to either a mode where a lower supply voltage is generated or to a mode where the power supply is turned off.

Driving apparatus for display device

A liquid crystal display device has a liquid crystal panel, a DA converter for generating a common electrode signal to be applied to a common electrode of a liquid crystal, and a non-volatile memory for encoding an optimum value of the common electrode signal into an ID code and storing the ID code therein. The DA converter generates the optimum common electrode signal corresponding to the ID code read out from the non-volatile memory. A liquid crystal panel manufacturer ships the liquid crystal panel in which the optimum value of the common electrode signal is encoded into the ID code and stored in the non-volatile memory in an inspecting process. The assembling manufacturer using the liquid crystal panel can easily set the optimum value of the common electrode signal. Furthermore, the liquid crystal display device has a CPU decoding the ID code read out from the non-volatile memory. Alternatively, it is possible to supply a data of a value of the common electrode signal to a user of the liquid crystal. The user adjusts the common electrode signal generating circuit by using the data of the value of the common electrode signal.

Liquid crystal display device and adjusting method of the same

A mask circuit is provided in a display device having a plurality of pixels. The mask circuit supplies a video signal to each of the pixels in a partial display area selected based on a display area selection signal, and prevents the supply of the video signal to each of the pixels in a background display area. Accordingly, this display device displays an arbitrary pattern at an arbitrary position of the display panel of the display device. In addition, an inverting controlling circuit is provided for inverting the background display signal supplied to each of the pixels in the background display area for each frame. The power consumption of the display device can be reduced.

Display device

Data output from a DSP () is subjected to pixel number adjustment and temporarily stored in a memory (). Here, two adjacent pieces of video data are weighted in accordance with a difference between the data input and the display sampling cycle, so as to create new data. Even when video data and a display () have a different number of pixels, it is possible to minimize deterioration of the video data image when displayed.

Display apparatus and control circuit thereof

This invention is directed to the active matrix display device with an imaging speed rapid enough for the moving image display and the small power consumption. The selector makes the switch between the moving image mode, where the image signal consecutively inputted is consecutively displayed after the certain processing is performed by the data processing unit and the still image mode, where the display is made based on the image signal stored in the frame memory. The messy display upon the switching between the modes can be prevented by differentiating the switching timing of the still to moving image mode from that of the moving to still image mode, improving the display quality.

Active matrix display device

Graphics are drawn with an input pen, which is provided with an optical sensor at its tip, on a display surface of an EL display. At this time, the EL display is caused to emit light in dot sequence, and the position of the input pen is detected as coordiante information on the basis of timing of light emission of the EL display and timing of light emission detection of the input pen.

Digitizing apparatus

A driving circuit of a display device such as a liquid crystal generates power supply clocks (and) based on a system clock during the normal display operation which is not a power save mode. The generated power supply clocks are supplied, directly or after inversion, to the switches (SWthrough SW(and SWthrough SW)) in a charge pump type power supply circuit () for switching the connection of capacitors (Cand C(and Cand C)) in the power supply circuit (). In this manner, supply voltages VDDand VDDwhich function as the driving power supply for a driving circuit () and a display panel () can be obtained at the power supply circuit () by boosting the input voltage Vin. The driving circuit () stops supply of the power supply clocks to the power supply circuit () when a transition to the power save mode is instructed and a power save control signal generated by a CPU I/F circuit () is changed, thereby suspending generation of the supply voltage an consumption of power consumption at the circuit and display panel.

Charge pump type power supply circuit and driving circuit for display device and display device using such power supply circuit

An input digital video signal is allotted by a first multiplexer () between regions of a display area to be driven in a dividing manner and is sequentially input to a first memory portion (A) or a second memory portion (B). Each of the first and second memory portions (A andB) comprises an input-side line memory () composed of, for example, 400-stage input side shift register to which said digital video signal is sequentially input, and an output-side line memory () for receiving the data transferred in parallel from the input line memory () to serially output the stored data from a selected one of output portions (Out) provided at the 320th, 256th or first stage FF. The output portion of the memory () is thus selected by selectors (A,B) in accordance with the number of pixels in the horizontal direction of the LCD panel, such that LCD panels having the different numbers of pixels can be driven with the same structure. The output-side line memory () further includes a data shift direction switching circuit. By controlling the switching circuit and selecting the output at the first stage FF(Out) in the 400 stages, the data from the output-side line memory () can be output in the order opposite to the input order into the input-side line memory ().

Signal processing circuit for display device

On an insulating substrate, there are formed a first gate electrode, a gate insulating film, a semiconductor film, and an interlayer insulating film. Above the interlayer insulating film, a TFT is formed having a second gate electrode connected to the first gate electrode. Then, a photosensitive resin is formed over the entire surface of the extant layers. Subsequently, first exposure is applied using a first mask, and second exposure is then applied using a second mask with a larger amount of light than used for the first exposure. The second mask has an opening at a position corresponding to a source. Thereafter, the photosensitive resin film is developed thereby forming a contact hole and a concave.

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Nagoya, Japan

Mitsugu Kobayashi