161results about How to "Reduce aperture ratio" patented technology

An object is to provide a semiconductor device of which a manufacturing process is not complicated and by which cost can be suppressed, by forming a thin film transistor using an oxide semiconductor film typified by zinc oxide, and a manufacturing method thereof. For the semiconductor device, a gate electrode is formed over a substrate; a gate insulating film is formed covering the gate electrode; an oxide semiconductor film is formed over the gate insulating film; and a first conductive film and a second conductive film are formed over the oxide semiconductor film. The oxide semiconductor film has at least a crystallized region in a channel region.

To provide a display device which can realize high performance of a field-effect transistor which forms a pixel of the display device and which can achieve improvement in an aperture ratio of a pixel, which has been reduced due to increase in the number of field-effect transistors, and reduction in the area of the field-effect transistor which occupies the pixel, without depending on a microfabrication technique of the field-effect transistor, even when the number of field-effect transistors in the pixel is increased. A display device is provided with a plurality of pixels in which a plurality of field-effect transistors including a semiconductor layer which is separated from a semiconductor substrate and is bonded to a supporting substrate having an insulating surface are stacked with a planarization layer interposed therebetween.

The organic electroluminescence display apparatus of the present invention comprises a first and second substrates, the former being coated with banks for separating pixels, a lower electrode, organic light-emitting layer and upper electrode of a transparent material in this order, and the latter being coated with a color filter and electroconductive shadow pattern, wherein the organic light-emitting layer surrounded by the banks for separating pixels faces the color filter, and the first and second substrates face each other in such a way that the upper electrode over the banks for separating pixels is electrically connected to the electroconductive shadow pattern. This structure connects at least one of the upper electrode and electroconductive shadow pattern to a power supply point, to control ununiform emitted light brightness which may result from voltage drop at the upper transparent electrode. Moreover, the organic light-emitting layer can be formed without a vapor deposition mask having a precise aperture pattern, to efficiently produce the organic EL display apparatus.

A liquid crystal device includes a plurality of selection lines, a plurality of signal lines, a plurality of pixel portions, a plurality of photosensor portions, a plurality of first power lines, and a plurality of sense lines. The plurality of selection lines are provided in a line direction. The plurality of signal lines are provided in a column direction. The plurality of pixel portions are provided at positions corresponding to intersections of the selection lines and the signal lines. The plurality of photosensor portions are provided in correspondence with a portion of the plurality of pixel portions. The plurality of first power lines are provided in the line direction. The plurality of sense lines are provided in the column direction. Each of the plurality of pixel portions includes a first switching element and a liquid crystal. The first switching element loads a display signal supplied through a corresponding one of the signal lines as a selection signal supplied through a corresponding one of the selection lines is asserted. The liquid crystal exhibits a bright state corresponding to the display signal that is loaded by the first switching element. The portion of the plurality of pixel portions adjust the amounts of light that enter the plurality of photosensor portions. Each of the plurality of photosensor portions includes a photoelectric conversion element, a capacitive element, a second switching element, and a readout portion. The photoelectric conversion element generates an electric current of which the magnitude corresponds to the amount of light received. One end of the capacitive element is electrically connected to the photoelectric conversion element. The second switching element resets the one end of the capacitive element to a reset voltage that is supplied through a corresponding one of the first power lines. The readout portion outputs, to a corresponding one of the sense lines, an output signal of which the magnitude corresponds to a voltage of the one end of the capacitive element. The second switching element is controlled to any one of an on state or an off state on the basis of the selection signal that is supplied through the corresponding one of the selection lines.

The invention provides a pixel driving circuit, a pixel driving method, a display panel and a display device. The pixel driving circuit comprises a first pixel driving unit and a second pixel driving unit, wherein the first pixel driving unit comprises a first driving transistor, a first storage unit and a first driving control unit, the first driving control unit controls the jumping compensation on threshold voltage of the first driving transistor through exerting jumping voltage on data voltage in the first compensation stage, the second pixel driving unit comprises a second driving transistor, a second storage unit and a second driving control unit, and the second driving control unit controls the jumping compensation on threshold voltage of the second driving transistor through exerting the jumping voltage on the data voltage in the second compensation stage, and controls the luminescence of a second luminous element. The aperture opening ratio and the cost of a pixel unit can be greatly reduced.

A liquid crystal display device is provided having a transmissive region and a reflective region in a pixel region in which a protective film is formed covering a thin film transistor over a substrate, wherein in the reflective region, an uneven surface is formed on a surface of the protective film, and a capacitor electrode which comprises a transparent conductive film and which is electrically connected to a source electrode of the thin film transistor, a first capacitor insulating film, and a reflective plate which also functions as an opposing electrode and in which the uneven surface formed on the protective film surfaces and appears with the capacitor electrode and the first capacitor insulating film therebetween are formed over the surface of the protective film, a second capacitor insulating film and a pixel electrode are formed covering the reflective region and the transmissive region.

A pixel arrangement structure for an organic light emitting diode display includes a first pixel, a second pixel and a third pixel. The first pixel has a larger area than the second pixel and the third pixel, and the first pixel, the second pixel and the third pixel have different planar shapes relative to each other.

According to an aspect, a display device with a touch detection function includes: a substrate; a display area in which pixels each constituted by different color regions are arranged in a matrix and that includes color columns in which the color regions of the same colors extend side by side; a touch detection electrode that includes a plurality of conductive thin wires; and a drive electrode. Each of the conductive thin wires includes a plurality of portions at each of which the conductive thin wire extends in a direction at an angle with respect to a direction of extension of the color regions, and a plurality of bent portions at each of which the conductive thin wire is bent with the angle changed. The conductive thin wires include portions each overlapping all of the color columns in a direction orthogonal to the surface of the substrate.

The invention discloses an array substrate and a manufacturing method thereof and a liquid crystal display. In the array substrate, an additional electrode is formed above a grid line, the additional electrode and the grid line are mutually spaced by virtue of a grid insulating layer, and the additional electrode is electrically connected with a public electrode wire; a pattern of a pixel electrode extends to the upward side of the additional electrode to be overlapped with the additional electrode, and overlapped parts of the pixel electrode, the additional electrode and the public electrodewire form a storage capacitor. According to the invention, two forms of a grid line-based storage capacitor and a public electrode wire-based storage capacitor are combined, storage capacitance can be improved, and influence of the storage capacitor on other display factors is reduced, aperture opening ratio is not reduced as an overlarge public electrode wire area is required, resistance-capacitance delay is shorter, and better display quality can be obtained.

Provided are a low temperature active matrix display device using a plastic substrate and method of fabricating the same. The low temperature active matrix display device includes: a plastic substrate; a reflection layer disposed on the plastic substrate; a buffer layer disposed on the reflection layer; a thin film transistor disposed on the buffer layer in a first region of the plastic substrate; an interlayer dielectric layer disposed on the thin film transistor; a capacitor disposed in a trench formed in a second region of the plastic substrate and having a first electrode connected to a source electrode and a drain electrode of the thin film transistor, the trench extending from the interlayer dielectric layer to the reflection layer; and a display device having one electrode connected to a second electrode of the capacitor. The above-described structure includes photoresist spacers to decrease a leakage current from the TFT, includes a reflector to protect the plastic substrate from deformation due to laser irradiation, and employs a three-dimensional capacitor to increase an aperture ratio.

The invention relates to a TFT-LCD (thin film transistor liquid crystal display) array substrate and a driving method thereof. The array substrate comprises a substrate, wherein pixel regions which are arranged in a matrix mode are formed on the substrate; a first pixel electrode, a first thin-film transistor, a second pixel electrode and a second thin-film transistor are formed in each pixel area; the first pixel electrode and the first thin-film transistor are positioned in an odd row; the second pixel electrode and the second thin-film transistor are positioned in an even row; a first gate line and a second gate line are formed in each pixel region; the first gate line is connected with the grid electrode of the first thin-film transistor; the second gate line is connected with the grid electrode of the second thin-film transistor; and a data line is formed in each pixel region and is respectively connected with the source electrode of the first thin-film transistor and the source electrode of the second thin-film transistor. In the invention, the quantity of the data lines and the quantity of data driving chips or the quantity of pipe pins of the data driving chips are reduced, or the quantity of the gate lines and the quantity of scanning driving chips or the quantity of the pipe pins of the scanning driving chips are reduced and the production cost of a TFT-LCD is reduced.

A touch recognition enabled display device includes a plurality of common electrode blocks serving as touch-sensing regions and/or touch-driving regions. Conductive lines connected to the common electrode blocks are placed under the common electrode blocks and the pixel electrodes of the pixels, and they are routed across the active area, directly toward an inactive area where drive-integrated circuits are located. The conductive lines are positioned under one or more planarization layers, and are connected to the corresponding common electrode blocks via one or more contact holes.

To provide a light-emitting device including the plurality of light-emitting elements having a structure in which a light-emitting area is large and defects in patterning of light-emitting elements are suppressed. To provide a lighting device including the light-emitting device. The light-emitting device includes a first wiring provided over a substrate having an insulating surface, an insulating film provided over the first wiring, a second wiring provided over the insulating film, and a light-emitting element unit including a plurality of light-emitting elements provided over the first wiring with the insulating film provided therebetween. The plurality of light-emitting elements each include a first electrode layer having a light-blocking property, a layer containing an organic compound in contact with the first electrode layer, and a second electrode layer having a light-transmitting property in contact with the layer containing an organic compound. The layers containing an organic compound are separated by a separation layer.

The invention provides an optical sensing device, which comprises an optical sensing component, a storage capacitor, a first thin-film transistor and a second thin-film transistor. The optical sensing component can reset the voltage of a node as a first voltage level, and the storage capacitor is electrically connected with the node to discharge the node to a second voltage level within frame time according to the intensity of illumination of the optical sensing component. The second voltage level controls the conduction voltage of the first thin-film transistor, and the second thin-film transistor outputs a voltage to be read according to the conduction voltage.

A curved liquid crystal display device includes first and second substrates facing each other and including a central region and a peripheral region; a plurality of data lines disposed on the first substrate and being spaced apart from each other by the same distance; a plurality of gate lines disposed on the first substrate and crossing the plurality of data lines; a pixel electrode disposed on the first substrate; a common electrode on the first substrate or the second substrate; a plurality of black matrixes disposed on the second substrate, a distance between adjacent black matrixes in the central region being smaller than a distance between adjacent black matrixes in the peripheral region; and a liquid crystal layer disposed between the first and second substrates.

A power source line 1 and a scanning line 3 are arranged on different wiring layers so as to be orthogonal to each other. In the wiring layer on which the scanning line 3 is arranged, a bypass line 111 is arranged on at least a part of a portion obtained by removing a planar position of the scanning line 3 from a planar position of the power source line 1. Contacts 121 and 122 establish electric connection between the power source line 1 and the bypass line 111. As described above, the bypass line 111 is connected to the power source line 1 in parallel, leading to decrease in resistance of the power source line 1 and suppression of unevenness in brightness at a display screen. Moreover, an additional manufacturing step for providing the bypass line 111 is unnecessary. Further, an aperture ratio is not reduced even when the bypass line 111 is provided. When the bypass line 111 is made wider than the power source line 1, a pixel circuit can be prevented from operating erroneously due to external light.

A liquid crystal display and a method of manufacturing the same that can reduce the increase in the black level due to light leakage, without reducing the aperture ratio while improving the contrast ratio. The liquid crystal display includes a TFT array substrate comprising a data line, a pixel electrode and a common electrode, and the data line, the pixel electrode and the common electrode have at least one bent structure; a color filter array substrate opposite to the TFT array substrate, the color filter array substrate comprising a black matrix covering an area corresponding to at least the data line and the common electrode; and a liquid crystal layer formed between the TFT array substrate and the color filter array substrate, wherein the black matrix comprises a first black matrix line covering an area where light leakage is minimal, and a second black matrix line covering an area where light leakage is excessive, the second black matrix having a line width larger than a line width of the first black matrix.

A display device includes a pixel electrode disposed on a first substrate, and including a first portion, a second portion and a connection portion disposed between the first portion and the second portion, a capacitor line disposed on the first substrate and between the first substrate and the connection portion, a nonsymmetrical shaped capacitor electrode disposed on the first substrate and overlapping the pixel electrode and the capacitor line, and electrically connected to the pixel electrode through contact holes, and a common electrode disposed on a second substrate and including first and second opening patterns disposed overlapping the first portion and the second portion of the pixel electrode, respectively.

A display device includes a pixel group having first to fourth pixels in a 2×2 matrix, wherein the areas of the first and second pixels is greater than the areas of the third and fourth pixels, so that, when a storage bridge which connects storage electrodes is formed between the first and second pixels, an opening area through which light is transmitted in each of the first and second pixels has the same area as the opening areas in each of the third and fourth pixels.

There is provided a rear projection screen for transmitting image light. The rear projection screen has a plurality of single lenses arrayed evenly on an incident plane for inputting the image light and having focal points in the vicinity of an outgoing plane of the rear projection screen, an incident-side black matrix, formed in lens boundaries where the plurality of single lenses adjoin each other, for blocking the image light incident on the lens boundaries and an outgoing-side black matrix in which an opening centering on an optical axis of the single lens is formed in the vicinity of each focal point of the plurality of single lenses in the vicinity of the outgoing plane of the rear projection screen.

The invention discloses a display panel, comprising a plurality of data lines, scanning lines and common lines, and a plurality of first pixels and second pixels, wherein each common line comprises amain common electrode, a first branch common electrode and a second branch common electrode; the main common electrode, the first branch common electrode and the second branch common electrode of thesame common line are electrically connected, the main common electrodes and the scanning lines are distributed at intervals, and the first branch common electrodes and the second branch common electrodes are arranged adjacent to the data lines; the driving brightness of the first pixels is greater than the original brightness, each first pixel includes a first pixel electrode, and the first pixelelectrodes are partially overlapped with the first branch common electrodes to form a first storage capacitor; and the driving brightness of the second pixels is less than the original brightness, each second pixel includes a second pixel electrode, and the second pixel electrodes are partially overlapped with the second branch common electrodes to form a second storage capacitor. The invention also discloses a display device. According to the scheme of the invention, the flicker of the screen caused by backlash in the display panel can be reduced, and the display quality can be improved.

A slit-shaped repair hole (27S) for repairing a short circuit defect of adjacent pixel electrodes (27) is provided straddling a storage capacitance wiring line (22CsL) at at least one intersection of the edges of the plurality of the pixel electrodes (27) and the storage capacitance wiring line (22CsL).

The invention provides an array substrate, comprising data lines and scanning lines intersecting with each other, and a plurality of pixel regions. Each pixel region comprises a first photic region, a second photic region, and a shading region between the first photic region and the second photic region. The shading region is provided with a thin film transistor. The first photic region is provided with a first electrode. The second photic region is provided with a second electrode. The first electrode and the second electrode are respectively electrically connected with the drain electrode of the thin film transistor. The data line corresponding to each pixel region comprises a first part and a second part respectively extending to two directions. The first part and the second part are connected through a first connection portion which is in the shading region. The above technical scheme can solve a problem that uneven pressing influences display effect.

The invention relates to low solution viscosity cellulose triacetate and methods of making thereof. The invention also relates to films prepared from the low solution viscosity cellulose triacetate and articles containing the low solution viscosity cellulose triacetate.