Sanyo Electric Co., Ltd.

Tottori Sanyo Electric Co., Ltd.

Sony Corporation

Epson Imaging Devices Corporation

Osamu Kobayashi

Satoshi Morita

Shinichiro Tanaka

Hideki Kaneko

Akio Ota

Masahiro Horiguchi

Makoto Murakami

Kohei Oda

Osamu Kai

Eiko Hirose

Satoshi c/o Tottori Sanyo Electric Co Ltd Morita

Kohei c/o Tottori Sanyo Electric Co Ltd Oda

A liquid crystal display device includes: a component substrate including a transistor device; an opposing substrate disposed so as to face the component substrate through a liquid crystal layer; a back light disposed on a side of the component substrate located opposite to the opposing substrate; first and second measurement portions formed on a surface of the component substrate and the opposing substrate, respectively, located on the liquid crystal layer side and used for measuring a difference between bonding positions of the component substrate and the opposing substrate; a measurement opening portion disposed on the second measurement portion side; and a light shielding layer disposed between the component substrate and the second measurement portion and preventing transmission of light from the back light through the measurement opening portion.

Liquid crystal display device and electronic apparatus

Provided is a liquid crystal display device including: a pair of transparent substrates including a liquid crystal layer interposed therebetween, wherein, at the liquid crystal layer side of one of the pair of transparent substrates, a plurality of scan lines and a plurality of signal lines are arranged in a display area in a matrix, first electrodes are formed in pixel areas partitioned by the scan lines and the signal lines, a second electrode is formed on the first electrodes with an insulating film interposed therebetween over at least the display area, a common line is formed outside the display area, and the second electrode is electrically connected to the common line via a low-resistance line which is formed along at least one side of the display area.

A display device includes a plurality of light emitting elements arranged in a matrix. A scan signal is made to flow into a gate signal line and a data signal is made to flow into a source signal line so that the data signal is applied to a source electrode and the scan signal is supplied to a gate electrode of a control TFT arranged at a portion where the both signal lines intersect when viewed from above. Thus, when the control TFT is turned ON, a drive TFT having a gate electrode connected to the drain electrode is turned ON, so that current is supplied from a power supply line via the source electrode and the drain electrode of the drive TFT to an organic EL element and the organic EL element emits light. A holding capacity is present between the control TFT and the drive TFT. Even when the scan signal becomes LOW level and the control TFT turns OFF, the gate potential of the drive TFT is held for a predetermined period of time by the holding capacity and the organic EL element continues to emit light.

Organic luminescent display device having a semiconductor with an amorphous silicon layer

An active matrix liquid crystal display deviceof the present invention includes: a plurality of signal lines Y, . . . Ym and scanning lines X, . . . Xn, Xn+1, Xn+2 which are arranged in a matrix state on a substrate; switching transistorsarranged near the intersection of each of the signal lines and the scanning lines; and pixel electrodes that are severally arranged in positions surrounded by the signal lines and the scanning lines and connected to the switching transistors, in which the pixel electrode is made up of a pixel electrode for display() that contributes to display, which is provided in an effective display region, and a dummy pixel electrodethat does not contribute to display, which is provided in a non-effective display region, and the dummy pixel electrode has a smaller area than the area of the pixel electrode for display and a plurality of the dummy pixel electrodes are parallelly provided for each signal line. Consequently, it is possible to provide an active matrix liquid crystal display device in which a large number of dummy pixel electrodes are provided without increasing the area of the non-effective display region and which is capable of dealing with multiple entries of static electricity from terminals.

Active matrix liquid crystal display device

A transistor has a source electrode and a drain electrode formed with a predetermined interval secured in between on a semiconductor layer formed to perspectively overlap a gate electrode. The source and drain electrodes are each longer in their lengthwise direction than in their widthwise direction. The source electrode has a recessed portion formed therein to allow the tip portion of the drain electrode in. The semiconductor layer protrudes out of the gate electrode to form a portion that does not overlap the gate electrode but overlaps the source electrode and a portion that does not overlap the gate electrode but overlaps the drain electrode. Thus, the protruding portion that overlaps the source electrode and the protruding portion that overlaps the drain electrode are separated from each other by the gate electrode so as to be independent of each other. This prevents short-circuiting between the source and drain that results when the portions of the semiconductor islands protruding out of the gate electrode become conductive through a photoelectric effect brought about by the light that travels past the gate electrode or by another cause.

Transistor and display comprising it

Growing community of inventors

Tottori, Japan

Osamu Kobayashi