323results about How to "Increase opening ratio" patented technology

It is an object to manufacture and provide a highly reliable display device including a thin film transistor with a high aperture ratio which has stable electric characteristics. In a manufacturing method of a semiconductor device having a thin film transistor in which a semiconductor layer including a channel formation region is formed using an oxide semiconductor film, a heat treatment for reducing moisture and the like which are impurities and for improving the purity of the oxide semiconductor film (a heat treatment for dehydration or dehydrogenation) is performed. Further, an aperture ratio is improved by forming a gate electrode layer, a source electrode layer, and a drain electrode layer using conductive films having light transmitting properties.

The invention discloses a capacitance-type embedded touch screen, a driving method thereof and a display device. A touch sensing electrode extending along the line direction of pixel units is arranged on a color film substrate; on a TFT (Thin Film Transistor) array substrate, a double grid structure is adopted, i.e., two grid signal lines are arranged between the adjacent pixel units, and every two adjacent rows of pixel units form a group of pixel unit rows and share a data signal line between the two rows of pixel units, thus saving the position of part of data signal lines. Therefore, touch driving electrodes for realizing a touch function can be arranged on the saved positions of the grid signal lines, i.e., the touch driving electrodes are arranged at clearances between adjacent pixel units, so that not only can the precision of required by touch be ensured, but also less aperture area of the pixel units is occupied, and the relatively large aperture ratio of the touch screen can be ensured.

It is an object to obtain a liquid crystal display device in which a contact defect is reduced, increase in contact resistance is suppressed, and an opening ratio is high. The present invention relates to a liquid crystal display device having a substrate; a thin film transistor provided over the substrate, which includes a gate wiring, a gate insulating film, an island-shaped semiconductor film, a source region, and a drain region; a source wiring which is provided over the substrate and is connected to the source region; a drain electrode which is provided over the substrate and is connected to the drain region; an auxiliary capacitor provided over the substrate; a pixel electrode connected to the drain electrode; and a protective film formed so as to cover the thin film transistor and the source wiring, where the protective film has an opening, and the auxiliary capacitor is formed in the area where the opening is formed.

The invention discloses a pixel drive circuit of an OLED (Organic Light Emitting Diode) display and a drive method thereof. The pixel circuit comprises a drive transistor, two switching transistors, a coupling capacitor, a storage capacitor and an OLED, wherein the drain electrode of the first switching transistor is connected with a data line, the grid electrode is connected with a first scanning control line, and the source electrode is connected with the end B of the coupling capacitor; the drain electrode of the second switching transistor is connected with the storage capacitor and the end A of the coupling capacitor, the grid electrode is connected with a second scanning control line, and the source electrode is connected with the drain electrode of the drive transistor and is connected with a power line through the OLED; and the grid electrode of the drive transistor is connected with the storage capacitor and the end A of the coupling capacitor, and the source electrode is grounded. The circuit can be used for effectively compensating the heterogeneity of threshold voltage of a thin film transistor and the degeneration of the cut-in voltage of the OLED to improve the picture brightness homogeneity of the OLED display screen.

An in-plane switching liquid crystal display, especially relative to an in-plane switching liquid crystal display with the absence of an overcoat layer is provided. The in-plane switching liquid crystal display having a first substrate, a second substrate and a liquid crystal layer sandwiched therebetween, a plurality of gate lines and data lines disposed on the first substrate, a counter electrode disposed on the second substrate and corresponding to one of the data lines, a pixel having a pixel electrode, a pair of shielding electrodes and a common electrode also disposed on the first substrate. Through the arrangement of shielding electrodes as well as the counter electrode, the coupling effect of the applied pixel voltage on the data lines is shielded.

In a light sensing element having simplified structure, an array substrate having the light sensing element and an LCD apparatus having the light sensing element, the light sensing element includes a first electrode, a control electrode and a second electrode. An alternating bias voltage is applied to the first electrode. An off voltage is applied to the control electrode. The second electrode outputs a light-induced leakage current based on an externally provided light and the bias voltage. Therefore, the array substrate includes one light sensing switching element corresponding to one pixel so that structure of the array substrate is simplified and opening ratio is increased.

[Problems]To provide a membrane material that realizes effective and efficient separation of a target substance of micron size, being easy to handle and that can be worked into various forms; a blood filtration membrane and a leukocyte removing filter unit that realizes a substantial reduction of filter material volume while retaining high capability of removing leukocytes, thereby reducing the loss of hemocyte suspension; and a cell culturing diaphragm suitable for co-culturing and a relevant method of cell culturing. [Means for Solving Problems]There is provided a composite porous membrane comprising a porous membrane comprised of an organic polymeric compound, and a supporting porous membrane adjacent to the porous membrane, characterized in that the organic polymeric compound constituting the porous membrane penetrates in at least part of a surface adjacent to porous membrane of the supporting porous membrane, the porous membrane having specified opening ratio, average pore diameter, standard deviation of pore diameter, ratio of through pore, average membrane thickness, standard deviation of membrane thickness and internal structure, and that the supporting porous membrane has communicating pores of 0.5D μm or greater average pore diameter. Further, there are provided a blood filtration membrane comprising the composite porous membrane; a leukocyte removing filter unit comprising the composite porous membrane as a second filter; and, utilizing the composite porous membrane, a cell culturing diaphragm and method of cell culturing.

The invention belongs to the technical field of liquid crystal display, and particularly relates to an array substrate and a method for manufacturing the same. The oxide film transistor array substrate is provided with a source electrode and/or a drain electrode made of transparent conductive materials, a thin film transistor structure is simplified, and the aperture opening of a liquid crystal display device using the array substrate is increased. A common electrode wire and a data line are arranged on the same layer, the distance between the common electrode wire and a pixel electrode is shortened, storage capacitance is increased, and the performance of the array substrate is improved. When the array substrate is manufactured, by the aid of a half gray-level mask multi-step etching method, an etching protective film and the data line are obtained by means of mask exposure once, only five times of mask exposure are needed during manufacture of the array substrate, the process is simplified, and the manufacturing cost is reduced.

An image display panel having, in a multilayer structure, a first and second light modulating layers each comprising a periodical planar arrangement of a plurality of light modulating elements for modulating a color or a brightness of an incident light in response to an input signal, wherein the arrangement period of the light modulating element in the first light modulating layer is smaller than the arrangement period of the light modulating element in the second light modulating layer.

The present invention discloses a liquid crystal display device, comprising: a first upper substrate including: a) a switching element on the first upper substrate; b) a passivation film formed over the whole surface of the first upper substrate while covering the switching element; c) a pixel electrode on the passivation film; d) a black matrix formed on the passivation film and over the switching element; e) a color filter formed over the pixel electrode; and f) a first orientation film formed on the black matrix and the color filter and above the pixel electrode; a lower second substrate having a common electrode and a second orientation film, the orientation film formed on the common electrode; sealing the first and second substrates with a sealant and a liquid crystal layer interposed between the first upper and second lower substrates.

The embodiment of the invention provides a display panel and a fingerprint recognition control method of the display panel. The method is used for realizing a fingerprint recognition function on the display panel, and meanwhile, the aperture rate of the display panel is improved. The display panel provided by the embodiment of the invention comprises a light sensing sensor and a film transistor connected with the light sensing sensor, wherein the light sensing sensor is positioned in a light shielding region of the display panel; and the light shielding region is a region through which light with the specific wavelength can penetrate.

The invention provides an array substrate, a preparation method of the array substrate and an organic light-emitting diode display device and belongs to the technical field of organic light-emitting diode display. The problems that a prior organic light-emitting diode display device is complex in preparation process and high in cost are solved. The array substrate comprises a plurality of pixel units located on the substrate, wherein each of the pixel units comprises a thin film transistor drive layer and an organic light-emitting diode which is driven by the thin film transistor drive layer and is farer than the thin film transistor drive layer, in a the direction far away from the substrate, the organic light-emitting diode comprises a transparent first electrode, a luminous layer, a second electrode, a reflection layer located between the thin film transistor drive layer and the organic light-emitting diode and a colorful film which is located between the reflection layer and the organic light-emitting diode, the second electrode is a transflective layer, or the second electrode is transparent and the transflective layer is arranged on the second electrode, and the transflective layer and the reflection layer form a micro-cavity structure. The array substrate is particularly suitable to a white organic light-emitting diode display device.

An array substrate includes plural scanning lines (111); a thin film transistor (112) having a first dielectric film (115), (117), a semiconductor film (120) thereon, and a source electrode (126b) electrically coupled to the semiconductor film (120) and a drain electrode (126a); a signal line (110) as taken out of the drain electrode (126a) to extend at substantially right angles to the scanning lines (111); and a pixel electrode (131) electrically connected to the source electrode (126b), wherein the pixel electrode (131) is electrically connected to the source electrode (126b) through a second dielectric film (127) as disposed on at least the signal line (110) while the pixel electrode (131) overlaps an elongate region (113) from its neighboring scanning line (111) through the first and second dielectric films (115), (117), (127). With such an arrangement, an appropriate storage capacitor can be formed by causing the scanning lines and pixel electrode to overlap each other without having to decrease the manufacturing yield while enabling achievement of high aperture ratio.

An array substrate for a liquid crystal display device includes: a substrate; a gate electrode on the substrate; a gate insulating layer on the gate electrode; a semiconductor layer on the gate insulating layer; source and drain electrodes on the semiconductor layer, the source and drain electrodes including a copper layer as an upper layer and a barrier layer as a lower layer; a first passivation layer on the source and drain electrodes; a second passivation layer on the first passivation layer, the second passivation layer having a drain contact hole through the first passivation layer, the drain contact hole exposing the barrier layer; and a pixel electrode connected to the barrier layer through the drain contact hole.

Disclosed is an organic EL display panel with an organic light emitting layer of a uniform film thickness. The organic EL display panel comprises a substrate, a line-shaped bank that is arranged on the substrate and defines line-shaped regions on the substrate, and two or more organic EL elements arranged in a row in each of the line-shaped regions. Each of the organic EL elements includes an anode arranged on the substrate, a hole injection layer arranged on the anode and comprised of a metal oxide, an organic light emitting layer arranged on the hole injection layer, and a cathode arranged on the organic light emitting layer. The hole injection layer is formed in a concave or convex shape, a part of the hole injection layer is arranged below the bank, and the organic light emitting layeris formed by coating the line-shaped regions with an organic light emitting material.

The invention provides a pixel circuit and a driving method, an organic light-emitting diode (OLED) display panel and a device thereof. The pixel circuit comprises a plurality of rows of pixel units. Each row of pixel units comprises a plurality of sub pixel units and further comprises an auxiliary compensation circuit. Each auxiliary compensation circuit generates a switch control signal input into a sub pixel driving circuit included by the corresponding sub pixel units according to a scanning signal from a gate drive circuit and generates a compensation control signal input to the sub pixel driving circuit according to a control signal from the gate drive circuit, and the sub pixel driving circuit receives data voltage from a data line according to the switch control signal, controls the OLED to emit light according to the data voltage through a driving transistor included by the sub pixel driving circuit, and controls and compensates threshold voltage of the driving transistor according to the compensation control signal when the driving transistor drives the OLED to emit light. By means of the pixel circuit, the driving method, the OLED display panel and the device, the pixel circuit design is simplified, the pixel opening rate is increased, the service life of the OLED panel is prolonged, and the cost is reduced.

The invention provides a preparation method of a display substrate, the display substrate and a display device, relates to the technical field of display, and aims at solving the problem that the aperture opening ratio is reduced due to the fact that a color light filter is fabricated on an array substrate. The preparation method of the display substrate comprises the steps as follows: a thin-film transistor array is prepared on a substrate to form the array substrate; a pixel definition layer is formed in a non-pixel region of the array substrate by a composition process; photochromic materials are evenly distributed in the pixel definition layer; the pixel definition layer containing the photochromic materials is converted into a shading state from a transmitting state under the action of illumination; and the pixel definition layer is converted into a shading irreversible state from the transmitting state. The preparation method of the display substrate provided by the invention is used for preparing the color light filter on the array substrate.

A manufacturing method of a liquid crystal display device includes steps of forming liquid crystal display by patterning the passivation layer and the gate insulating layer by using the black matrix as an etching mask to expose the portion of the drain electrode, the gate pad, and the data pad, forming a first transparent conductive layer on the black matrix, wherein the first transparent conductive layer contacts the portion of the drain electrode, the gate pad, and the data pad, forming a color filter layer on the first transparent conductive layer in the opening, forming a second transparent conductive layer on the color filter layer, the second transparent conductive layer contacting the first transparent conductive layer, and forming a pixel electrode, a gate pad terminal and a data pad terminal by patterning the first and second transparent conductive layers, wherein the pixel electrode is disposed in the pixel area, the gate pad terminal is disposed on the gate pad, and the data pad terminal is disposed on the data pad.

The invention discloses a pixel structure and a manufacturing method of the pixel structure, and relates to the technical field of display. The pixel structure comprises common electrode wires, data lines, scanning lines, thin film transistor switching devices and storage electrodes, wherein the common electrode wires surround the peripheries of pixels, the data lines and the scanning lines cross vertically and horizontally in the centers of the pixels, the thin film transistor switching devices are located in the intersection areas of the data lines and the scanning lines, and the storage electrodes are arranged below the common electrode wires. Drain electrodes of thin film transistors and contact holes in the storage electrodes are connected with transparent pixel electrodes at the same time. The four boundaries of each pixel are formed by the lightproof common electrode wires in a surrounding mode, and therefore the aperture opening ratio of the pixels can be increased substantially. Storage capacitance of storage capacitors formed by the storage electrodes and the common electrode wires in an overlapped mode can be automatically compensated when an upper metal layer and a lower metal layer shift. The invention further discloses the manufacturing method of the pixel structure.

An array substrate device includes a gate line formed on a substrate extending along a first direction having a gate electrode, a data line formed on the substrate extending along a second direction having a data pad disposed apart from a first end of the data line, the data and gate lines defining a pixel region, a gate pad formed on the substrate disposed apart from a first end of the gate line, a thin film transistor formed at a crossing region of the gate and data lines and including the gate electrode, a semiconductor layer, a source electrode, and a drain electrode, a black matrix overlapping the thin film transistor, the gate line, and the data line except for a first portion of the drain electrode, a first pixel electrode at the pixel region contacting the first portion of the drain electrode and the substrate, a color filter on the first pixel electrode at the pixel region, and a second pixel electrode on the color filter contacting the first pixel electrode.

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.

The invention relates to an OLED light-emitting device and a manufacturing method of the OLED light-emitting device. The OLED light-emitting device comprises a substrate, a planarization layer and a plurality of light-emitting units, wherein the planarization layer is located on the substrate and provided with a plurality of bending parts which are arranged at intervals; the light-emitting units are located on the planarization layer, and each light-emitting unit is located on the corresponding bending part and has a shape corresponding to that of the bending part. Each light-emitting unit comprises a first electrode, a light-emitting structure located on the first electrode and a second electrode located on the light-emitting structure. A cross section of each bending part has an arc-shaped outline as a whole. According to the OLED light-emitting device and the manufacturing method of the OLED light-emitting device, by arranging the bending parts in the contact positions of the light-emitting units and the planarization layer, the planar planes of the light-emitting units are turned into bending surfaces, the aperture rate of organic light-emitting diodes is substantially increased, light-emitting area is enlarged, and thus the luminance of the OLEDs is improved, power consumption is reduced, and the service life of the product is prolonged.

A touch display device includes an array base plate, a color film base plate and a liquid crystal layer, wherein the array base plate includes a plurality of scanning lines and data lines perpendicularly intersected, and a plurality of pixel units limited by the multiple scanning lines and the data lines, and further includes a detecting line arranged in the scanning line direction and a detecting line arranged in the data line direction; the detecting line arranged in the scanning line direction, and the scanning lines are arranged at different layers, are isolated by an insulating layer, and are overlapped in the display direction; a detecting part is arranged at an intersection of the detecting line arranged in the scanning line direction and the detecting line arranged in the data line direction; a touch terminal is arranged at a part on one side of the color film base plate, the part corresponds to the detecting part, and the side of the color film base plate corresponds to the array base plate; the detecting part and the touch terminal are matched; a touch signal is generated under the action of external force; and the display zone area occupied by the detecting lines is reduced, so that the aperture opening ratio is increased.

The invention provides a pixel structure and a liquid crystal display device. The pixel structure comprises a data line, a scanning line, a thin film transistor and pixel electrodes. The pixel electrodes include primary pixel electrodes and secondary pixel electrodes. The width of the primary electrode structure of each primary pixel electrode is different from that of the secondary electrode structure of each secondary pixel electrode. The invention further provides a liquid crystal display device. By the primary electrode structures and the secondary electrode structures which are different in width, aperture ratio of the pixel structure is increased, and manufacturing cost of the liquid crystal display device is lowered.

The invention discloses a thin film transistor array substrate. The thin film transistor array substrate comprises a first substrate, scanning lines, data lines and a pixel region, wherein the scanning lines and the data lines are located on the first substrate, and intersect to limit the pixel region. The pixel region comprises a thin film transistor and a pixel electrode located above the thin film transistor. A metal light-shielding layer is arranged between the thin film transistor and the pixel electrode, and comprises a first light-shielding region, a second light-shielding region and a third light-shielding region in a mutual isolation mode. The first light-shielding region is located between a source electrode/drain electrode and the pixel electrode, and the pixel electrode is electrically connected to the source electrode/drain electrode through the first light-shielding region. The second light-shielding region is located above an active layer, and the third light-shielding region is located above the scanning lines and the data lines. The invention further discloses a liquid crystal panel. The liquid crystal panel comprises the thin film transistor array substrate. The invention further discloses a liquid crystal display comprising the liquid crystal panel.

In an organic EL display device, a resistance of a cathode electrode of OLEDs is substantially reduced while maintaining a higher opening ratio of pixels as an entire display area. A reference power supply line is formed on a glass substrate, and receives a reference potential for driving the OLED. The OLED is formed on the glass substrate where the reference power supply line is formed, and has a structure in which a lower electrode, an organic material layer, and an upper electrode that is a cathode electrode common to plural pixels are laminated on each other in the order from the bottom. In some of the plural pixels, a cathode contact that penetrates through the organic material layer, and electrically connects the upper electrode to the reference power supply line is formed within an opening area corresponding to a W sub-pixel.

A multi-layered complementary wire structure and a manufacturing method thereof are disclosed, comprising a first wire and a second wire. Each of the first and the second wires comprises a main line and a plurality of branch lines located in a different layer from the main line. A plurality contact holes are formed in an insulating layer between the first wire and the second wire to connect the main line of the first wire and the branch lines of the first wire, and connect the main line of the second wire and the branch lines of the second wire. The main line of the first wire is insulated and crossed with the main line of the second wire. The main line of the first wire and the branch lines of the second wire are insulated with each other and located in the same layer. The main line of the second wire and the branch lines of the first wire are insulated with each other and located in the same layer.

The utility model relates to an active organic light emitting diode display, comprising an image elements array which is provided with a plurality of image elements, wherein every single image elements comprises a luminescence device, a driving device and a selector unit. The luminescence device comprises a first organic light emitting diode, a second organic light emitting diode and a third organic light emitting diode, wherein the organic light emitting diode is formed in the image elements in a superpositioned mode. The drive device is in coupling connection with the voltage source, receiving digital signal and driving the luminescence device according to the displayed data. A unit is chosen and the corresponding organic light emitting diode is chosen and connected according to a control signal. The utility model has the advantages that the opening ratio of the image elements is greatly improved and the color cast can be avoided.

The invention discloses an array substrate and a display device, belongs to the technical field of display, and aims to solve the technical problem that a voltage dividing capacitor influences the aperture opening ratio of a pixel unit. The array substrate comprises a plurality of pixel units, wherein the pixel units comprise main pixel regions, sub-pixel regions, first voltage dividing capacitors, driving scanning lines and voltage-dividing scanning lines; the first voltage dividing capacitors are formed by overlapping voltage-dividing electrodes with the driving scanning lines, or formed by overlapping the voltage-dividing electrodes with the voltage-dividing scanning lines. The array substrate can be applied to display devices such as liquid crystal televisions, liquid crystal displays, mobile phones and tablet computers.

The invention provides a TFT array substrate and a manufacturing method thereof. The TFT array substrate is provided with a transparent conducting thin film electrode plate (503), a second metal electrode plate (202) and a common electrode wire (102), wherein the transparent conducting thin film electrode plate (503), a primary area pixel electrode (501) and a secondary area pixel electrode (502) are positioned on the same layer; the second metal electrode plate (202) is positioned on a second metal layer (M20); the common electrode wire (102) is positioned on a first metal layer (M10); a part of the common electrode wire (102), a part of the second metal electrode plate (202) and a part of the transparent conducting thin film electrode plate (503) are overlapped spatially, and the transparent conducting thin film electrode plate (503) is in contact with a part of the common electrode wire (102) through a second via hole (422) penetrating through an insulation protective layer (40) and a gate insulation layer (20); and a part of the common electrode wire (102), a part of the second metal electrode plate (202) and a part of the transparent conducting thin film electrode plate (503) form a charge sharing capacitor (C10) together, so that the capacity of the charge sharing capacitor can be improved, the aperture opening ratio is increased, and the display quality of a liquid crystal display panel is improved.