An electro-optical device having a plurality of pixels including a plurality of EL elements, wherein the electro-optical device provides a gray scale display by controlling a period of time at which the plurality of the EL elements emit light in one frame period; the plurality of the EL elements have a first electrode and a second electrode; the first electrode is held at a constant potential; and a potential of the second electrode changes in such a manner that a polarity of an EL driving voltage, which is a difference between the potentials applied to the first and second electrodes, is inverted for each one frame period.

Electro-optical device

In order to provide an active matrix display device in which a thick insulating film is preferably formed around an organic semiconductive film of a thin film luminescent device without damaging the thin film luminescent device, the active matrix display device is provided with a bank layer (bank) along a data line (sig) and a scanning line (gate) to suppress formation of parasitic capacitance in the data line (sig), in which the bank layer (bank) surrounds a region that forms the organic semiconductive film of the thin film luminescent device by an ink-jet process. The bank layer (bank) includes a lower insulating layer formed of a thick organic material and an upper insulating layer of an organic material which is deposited on the lower insulating layer and has a smaller thickness so as to avoid contact of the organic semiconductive film with the upper insulating layer.

Active matrix display device

A liquid crystal display includes a first substrate, a second substrate, a liquid crystal material interposed between the first and second substrates. The liquid crystal display includes first protrusions and second protrusions that are alternately disposed with each other on the first substrate. A common electrode is provided at a side part of the first protrusions, and a pixel electrode is provided at a side part of the second protrusions to face the common electrode. A lateral electric field is generated between the common electrode and the pixel electrode facing each other for controlling an alignment of molecules of the liquid crystal material.

Liquid crystal display and method of manufacturing the same

Electronic devices having patterned electrically conductive polymers providing electrical connection thereto and methods of fabrication thereof are described Liquid crystal display cells are described having at least one of the electrodes providing a bias across the liquid crystal material formed from a patterned electrically conductive polymer Thin film transistors having patterned electrically conductive polymers as source drain and gate electrodes are described Light emitting diodes having anode and coated regions formed from patterned electrically conductive polymers are described Methods of patterning using a resist mask; patterning using a patterned metal layer; patterning the metal layer using a resist; and patterning the electrically conductive polymer directly to form electrodes and anode and cathode regions are described

Patterns of electrically conducting polymers and their application as electrodes or electrical contacts

An organic light-emitting display device and a method of its manufacture are provided, whereby manufacturing processes are simplified and display quality may be enhanced. The display device includes: an active layer of a thin film transistor (TFT), on a substrate and including a semiconducting material; a lower electrode of a capacitor, on the substrate, doped with ion impurities, and including a semiconducting material; a first insulating layer on the substrate to cover the active layer and the lower electrode; a gate electrode of the TFT, on the first insulating layer; a pixel electrode on the first insulating layer; an upper electrode of the capacitor, on the first insulating layer; source and drain electrodes of the TFT, electrically connected to the active layer; an organic layer on the pixel electrode and including an organic emission layer; and a counter electrode facing the pixel electrode, the organic layer between the counter electrode and the pixel electrode.

Organic light emitting display device and method of manufacturing the same

The object of this invention is to enhance the display quality of reflection type liquid crystal display device having the constitutions of an organic insulating film is formed on a thin film transistor formed on a substrate, and contact holes and bumps are formed at the positions for forming reflection electrodes on the organic insulating film. The reflection electrodes are formed thereon, and drain electrodes and reflection electrodes 38 are connected through the contact holes. The effect of this invention is since the bumps are formed only in the portions of the reflection electrodes, patterning of the reflection electrodes is easy, and insulation failure between source bus wirings and reflection electrodes does not occur, and the display quality is enhanced.

Reflection type liquid crystal display device wherein the reflector has bumps

It is an object of the invention to improve the display quality of a reflection type liquid crystal display device. A gate bus wiring, a source bus wiring, and a TFT are formed on an insulating substrate, and an organic insulating film having bumps is formed on them. A light shield film is formed in the region above the TFT on the surface of the organic insulating film, and a reflection electrode is formed in the other region. The reflection electrode is separated from the light shield film by a gap. An orientation film is further formed on these components complete one substrate. The one substrate is bonded through a liquid crystal layer to the other substrate having a light emitting insulating substrate, a color filter, a transparent electrode, and an orientation film.

Manufacturing method of reflection type liquid crystal display devices having light shield elements and reflective electrodes formed of same material

It is an object of the invention to improve the display quality of a reflection type liquid crystal display device (30). A gate bus wiring (32), a source bus wiring (39), and a TFT (40) are formed on an insulating substrate (31), and an organic insulating film (42) having bumps (42b) is formed on them. A light shield film (45) is formed in the region above the TFT (40) on the surface of the organic insulating film (42), and a reflection electrode (38) is formed in the other region. The reflection electrode (38) is separated from the light shield film (45) by a gap (45a). An orientation film (44) is further formed on these components to complete one substrate (52). The one substrate (52) is bonded through a liquid crystal layer (50) to the other substrate (53)having a light emitting insulating substrate (46), a color filter (47), a transparent electrode (48), and an orientation film (49).

Reflection type liquid crystal display device and manufacturing method thereof

The object of this invention is to enhance the display quality of reflection type liquid crystal display device (30) having the constitutions of an organic insulating film (42) is formed on a thin film transistor (40) formed on a substrate (31), and contact holes (43) and bumps (42a) are formed at the positions for forming reflection electrodes (38) on the organic insulating film (42). The reflection electrodes (38) are formed thereon, and drain electrodes (37) and reflection electrodes (38) are connected through the contact holes (43). The effect of this invention is since the bumps (42a) are formed only in the portions of the reflection electrodes (38), patterning of the reflection electrodes (38) is easy, and insulation failure between source bus wirings (36) and reflection electrodes (38) does not occur, and the display quality is enhanced.

Reflection type liquid crystal display device and method of manufacturing the same

PROBLEM TO BE SOLVED: To provide the manufacture of the reflection type liquid crystal display device which is improved in display quality. SOLUTION: For the manufacture of the reflection type liquid crystal display device constituted by forming reflection electrodes 38 as display pixels reflecting incident light from one of a couple of substrates arranged opposite each other across a liquid crystal layer and lead-around electrodes for applying a voltage for display to the respective reflection electrodes 38 through connection parts on the liquid-crystal-layer side surface of the other substrate and also forming a common electrode with light transmissivity over the entire liquid-crystal-layer side of the former substrate, the area of the latter substrate except the connection parts between the lead-around electrodes and reflection electrodes 38 is exposed through light shield means arrayed so that patterns corresponding to projection parts are not formed at the connection parts. Namely, this manufacture includes a process for forming the protrusions 42a of resin in array, a process for rounding and smoothing the corners of the protrusions 42a by thermally treating the projection parts, and a process for forming the reflection electrodes 38 in a predetermined area on an insulating film 42 partially over the connection area so that adjacent reflection electrodes 38 are mutually at intervals.

Manufacture of reflection type liquid crystal display device

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