139 results about "Active matrix" patented technology

The invention provides a liquid crystal composite for an active-matrix-addressed electro-optical display device and application of the liquid crystal composite. The liquid crystal compound comprises a compound with a general formula (I) which occupies 10 percent to 30 percent of the total weight of the liquid crystal composite, a compound with a general formula (II) which occupies 5 percent to 30 percent of the total weight of the liquid crystal composite, a compound with a general formula (III) which occupies 10 percent to 40 percent of the total weight of the liquid crystal composite, and a compound with a general formula (IV) which occupies 10 percent to 60 percent of the total weight of the liquid crystal composite. The liquid crystal composite provided by the invention has a relatively high response speed and good low temperature storage stability. The invention further provides the active-matrix-addressed electro-optical display device comprising the liquid crystal composite.

Liquid-crystalline compounds with a terminal 5,6-difluoro-benzo[b]thiophene ring as provided by formula I, liquid crystal mixtures using the compounds, the use of the compounds in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, and liquid crystal displays that contain a liquid crystal material of this type.

An active matrix substrate includes a plurality of gate bus lines, a plurality of source bus lines located closer to the substrate side; a lower insulating layer that covers the source bus lines; an interlayer insulating layer that covers the gate bus lines; a plurality of oxide semiconductor TFTs disposed in association with respective pixel regions; a pixel electrode disposed in each of the pixel regions; and a plurality of source contact portions each of which electrically connects one of the oxide semiconductor TFTs to the corresponding one of the source bus lines, in which each of the oxide semiconductor TFTs includes an oxide semiconductor layer disposed on the lower insulating layer, a gate electrode disposed on a portion of the oxide semiconductor layer, and a source electrode formed of a conductive film, and each of the source contact portions includes a source contact hole, and a connection electrode.

An active matrix substrate includes a touch electrode disposed in a pixel region, a frame touch electrode disposed in a frame region, and a dummy array segment disposed in the frame region. The frame region includes a first dummy region, provided in a position adjacent to the pixel region, where the frame touch electrode is disposed and a second dummy region provided in a position opposite to the pixel region across the first dummy region. In the second dummy region, the frame touch electrode is not disposed, but the dummy array segment is disposed.

The present invention relates to a light emitting display device (200) comprising a matrix of pixels wherein each pixel is composed of three basic light emitting regions (201a, 201b, 201c), each basic light emitting region comprising an OLED stack (205a, 205b, 205c) having a different color, and each region being protected by a photoresist (280); two adjacent control electrodes (202a, 202b, 202b, 202c, 202c, 202a) belonging to two adjacent light-emitting regions (201a, 201b, 201b, 201c, 201c, 201a) of different basic light-emitting region groups are separated by a trench (211), and have insulating surfaces (223) covering the side walls of the adjacent electrodes (202a, 202b, 202b, 202c, 202c). Two adjacent control electrodes (202a, 202a, 202b, 202b, 202c, 202c) of two adjacent light-emitting regions (201a, 201a, 201b, 201b, 201c, 201c) belonging to the same basic light-emitting region group are separated by a trench (211) which is filled with a filling element (203), and the filling element (203) is arranged between the two adjacent control electrodes (202a, 202a, 202b, 202b, 202c, 202c) of the two adjacent light-emitting regions (201a, 201a, 201b, 201b, 201c, 201c) belonging to the same basic light-emitting region group. Wherein, in each group of basic light-emitting regions, the combination of the OLED stack and the upper electrode thereof is separated from the adjacent combination by an encapsulation layer (290).

The invention relates to a metal mask supported by a glass substrate for manufacturing an organic light emitting diode display. The mask includes a glass substrate located only outside the display area, an open-cell metal layer for providing structural stability, and forming apertures for material deposition in the display area. The perforated metal layer can be formed by methods such as electroforming, sputtering, chemical vapor deposition, evaporation or atomic layer deposition, and the used metal comprises a material with a low thermal expansion coefficient, such as invar steel, super invar steel, kovar alloy, 42 alloy, nickel, tungsten, molybdenum, tantalum or rhenium. The mask supports two structural forms: a fine metal mask and an open metal mask which are respectively used for evaporation of red, green and blue sub-pixels and a common layer. The method can be used for batch processing of a plurality of micro organic light-emitting diode display substrates, and can also be used for full-coverage processing of a single active matrix organic light-emitting diode display substrate.

In an active matrix substrate equipped with oxide semiconductor TFTs with a top-gate or double-gate structure as ESD protection elements, this invention avoids problems caused by excessively high current driving capability of the ESD protection elements. [Solution] The active matrix substrate comprises a plurality of TFTs and a plurality of ESD protection elements arranged within the non-display area, each electrically connected to a corresponding wiring. At least some of the plurality of TFTs have a first oxide semiconductor layer. Each ESD protection element is formed in a separate layer from the first oxide semiconductor layer and has a second oxide semiconductor layer having a lower mobility than the first oxide semiconductor layer.

Provided is a liquid crystal display device capable of switching between a privacy mode and a public mode, and achieving high contrast even when displayed in the privacy mode. The liquid crystal display device of the present invention has an active matrix substrate having a first electrode, a first insulating layer, and a second electrode including a first linear electrode portion, a color filter substrate having a black matrix, a color filter, a third electrode including a plurality of second linear electrode portions, and a fourth electrode as a floating electrode, the third electrode and the fourth electrode are disposed between the black matrix and a liquid crystal layer, the second linear electrode portions extend in a second direction and overlap with portions of the black matrix extending in the second direction, the fourth electrode is disposed between the plurality of second linear electrode portions when viewed from above and overlaps with the black matrix, and a control circuit performs control to switch between applying a driving voltage to the third electrode and applying a constant voltage.

The invention relates to a driving system of an active matrix type cholesterol liquid crystal display device and a handwritten image display method thereof. The handwritten image display method is used for controlling an active matrix type cholesterol liquid crystal display device, and comprises the following steps of: generating a voltage control instruction, a grid control instruction and an image display instruction according to handwritten image parameter data, a data enabling signal and a vertical synchronous signal; generating a gate driving voltage and a plurality of data driving voltages according to the voltage control instruction; executing a handwritten image display program, outputting the grid driving voltage to control a plurality of display units of the active matrix type cholesterol liquid crystal display device to be turned on or turned off, controlling a switching time sequence of the plurality of display units according to the grid control instruction, and outputting the plurality of data driving voltages to the turned-on plurality of display units, therefore, a handwritten image is displayed.

The present invention relates to a liquid-crystalline medium, preferably having a nematic phase, comprising one or more compounds of formula (C) wherein the parameters have the meanings given herein, to the use thereof in energy-efficient electro-optic displays, in particular in active matrix displays based on the IPS or FFS effect, and to the use thereof in energy-efficient electro-optic displays, especially in active matrix displays based on the IPS or FFS effect. Relates to a liquid crystal medium of this type, to a display of this type containing this type, and to the use of a compound of formula (C) for improving the contrast and / or response time of a liquid crystal medium comprising one or more additional mesogenic compounds as defined herein.

This invention discloses a high-strength composite membrane with a multi-barrier structure and its preparation process, belonging to the field of composite membrane preparation technology. It addresses the technical problem that the barrier and tensile properties of existing composite membranes need further improvement. Specifically, it includes the following steps: uniformly coating a carboxyl-rich polysaccharide graft copolymer solution onto the surface of a release PET film, drying it to a moisture content of 15-20% to obtain a matrix layer. This invention sequentially coats carboxyl-rich polysaccharides to construct a highly active matrix, sprays zirconium phytate sol at the interface to induce coordination crosslinking, then coats dopamine-modified MXene and uses fluid shear force to achieve highly parallel orientation of nanosheets. Finally, it removes micropores through segmented vacuum hot pressing and deeply cures the membrane. This integrates interfacial chemical anchoring, forced shear orientation, and thermal coupling densification, constructing a dense three-dimensional interpenetrating barrier network in situ, synergistically improving the tensile strength and gas-liquid shielding performance of the composite membrane.

An active matrix substrate includes: a first oxide semiconductor layer including a first channel region; a first gate electrode disposed on the substrate side of the first oxide semiconductor layer; a channel protection layer disposed on a side of the first oxide semiconductor layer opposite to the substrate and covering the first channel region; a first TFT having a first source electrode and a first drain electrode in an upper layer of the channel protection layer; a second oxide semiconductor layer; a second gate electrode disposed on a side of the second oxide semiconductor layer opposite to the substrate; and the second TFT having a second source electrode and a second drain electrode disposed on an interlayer insulating layer that covers the second gate electrode, wherein the first oxide semiconductor layer and the second oxide semiconductor layer are formed of the same layered oxide semiconductor film, the layered oxide semiconductor film has a layered structure including a high mobility oxide semiconductor film and a low mobility oxide semiconductor film disposed on the substrate side of the high mobility oxide semiconductor film and having a lower mobility than a mobility of the high mobility oxide semiconductor film, and the channel protection layer of the first TFT and the gate insulating layer of the second TFT are formed of the same insulating film.

The invention relates to liquid crystal materials containing compounds of formula (I), in which the groups and parameters occurring have the meanings given in claim 1, and one or more dichroic dyes, and to the use thereof in active matrix displays, in particular in IPS or FFS displays.

An active matrix substrate includes a touch electrode disposed in a pixel region, a frame touch electrode disposed in a frame region, and a dummy array segment disposed in the frame region. The frame region includes a first dummy region, provided in a position adjacent to the pixel region, where the frame touch electrode is disposed and a second dummy region provided in a position opposite to the pixel region across the first dummy region. In the second dummy region, the frame touch electrode is not disposed, but the dummy array segment is disposed.

The present invention relates to an electroluminescent display device comprising an array of electroluminescent pixels consisting of a plurality of pixels deposited on a substrate (210), each pixel being formed by at least three elementary light-emitting regions, each elementary light-emitting region belonging to a different elementary light-emitting region group, each elementary light-emitting region comprising an electroluminescent stack (205) of organic layers, referred to as an "OLED stack", and a transparent upper electrode (207) placed between the control electrode (202) and the transparent upper electrode (207), the electroluminescent display device being characterized in that: two adjacent control electrodes (202a, 202b; 202b, 202c, 202c; 202c, 202a) are separated by a space (211) forming a trench, which covers at least the vertical sides of adjacent electrodes and electrically insulates them from each other, and two adjacent control electrodes (202a, 202a; the electrodes (202a, 202b, 2024, 202c) are separated by a space (211) forming the trench, which space is filled by a filling element (203) such that adjacent electrodes are electrically insulated from each other and fill the natural space between the two electrodes. In each group of basic light emitting regions, the entire OLED stack and its respective upper electrodes (205a and 207a, 205b and 207b, 205c and 207c) are separated from adjacent components belonging to the other group by an encapsulation layer (290) that protects the upper surface and sides of the OLED stack from ambient air.

An active matrix substrate includes a substrate and a plurality of oxide semiconductor TFTs supported on the substrate, in which each of oxide semiconductor TFT includes an oxide semiconductor layer including a first region and a second region having a specific resistance lower than a specific resistance of the first region, and a gate electrode disposed on at least a part of the first region with a gate insulating layer interposed therebetween, the gate insulating layer includes a first insulating layer and a second insulating layer disposed on the first insulating layer, and, when viewed from a normal direction of the substrate, the first insulating layer overlaps with the first region and does not overlap with the second region and the second insulating layer overlaps with the first region and at least a part of the second region.

The invention discloses an AMOLED (Active Matrix / Organic Light Emitting Diode) panel and a preparation method thereof. The AMOLED panel comprises a touch cover plate with a sensing function; the AMOLED substrate comprises an array substrate, a light-emitting unit arranged on the array substrate, an integrated circuit in control connection with the light-emitting unit, a transmission line electrically connected with the integrated circuit and a conductive protrusion electrically connected with the transmission line, and the conductive protrusion is electrically connected with the touch control cover plate; the sealing glue layer is arranged around the touch control cover plate and the AMOLED substrate and is used for connecting the touch control cover plate and the AMOLED substrate in a sealing manner; the light sensor is used for detecting the intensity of ambient light; the humidity sensor is used for detecting environment humidity; the light sensor and the humidity sensor are electrically connected with the integrated circuit through a transmission line or a newly-added sensing line. On the basis of an existing embedded touch AMOLED structure, the AMOLED panel of the optical sensor and the humidity sensor and the preparation method of the AMOLED panel are further integrated, and multifunctional integration and environmental perception are achieved on the premise that an original touch structure and an original packaging technology are not changed.

This invention relates to compounds of formula (I), and preferably to liquid crystal media having a nematic phase and negative dielectric anisotropy, comprising a) one or more compounds of formula (I) and b) one or more compounds selected from formulas (II) and (III), wherein the parameters have the meaning given in claim 1, their use in electro-optic displays, particularly in active matrix displays based on VA, ECB, PALC, FFS or IPS effects, displays of this type comprising liquid crystal media, and the use of compounds of formula (I) in stabilizing liquid crystal media comprising one or more compounds of formula (II) and one or more compounds selected from formulas (III-1) to (III-4) and B.

Liquid crystal compounds having a terminal 5, 6-difluoro-benzo [b] thiophene ring provided by the formula, liquid crystal mixtures using the compounds, their use in electro-optic displays, in particular in active matrix displays based on the IPS or FFS effect, and liquid crystal displays containing such a liquid crystal material.

To provide a drive circuit, an active matrix substrate, and a display device capable of reducing a withstand voltage required for a transistor and reducing a speed of deterioration of the transistor.SOLUTION: The unit circuit 1a of the gate driving circuit includes a transistor T2 to which a set signal is input and a transistor T3 to which a reset signal is input. At least one of the transistors T2 and T3 includes a first channel C1 and a second channel C2. The length C2 of the second channel L2 is larger than the length L1 of the first channel, or the length C2 of the second channel T2 is smaller than the length T2 of the first channel, or the mobility of the second layer of the transistor well is lower than the mobility of the first layer of the transistor well.SELECTED DRAWING: Figure 8

The invention discloses a low-delay AMOLED (Active Matrix / Organic Light Emitting Diode) touch integrated driving method, which relates to the technical field of display touch control, is applied to an AMOLED touch screen comprising a plurality of touch control electrodes arranged in an array, and comprises the following steps of: in a touch control and display multiplexing time period of each frame, grouping and scanning the touch control electrodes, the longest duration required for scanning in each group of touch electrodes is the scanning duration of the group of touch electrodes; wherein the touch control and display multiplexing time period is based on the light-emitting characteristics of AMOLED pixels, and a frequency division multiplexing mechanism of touch control signals and display driving signals is adopted, so that touch control scanning and pixel light-emitting driving are executed in parallel in the same time period. According to the low-delay AMOLED touch integrated driving method, the characteristic that AMOLED pixels are insensitive to high-frequency signals is utilized, touch signals are set to be high-frequency carrier waves of 1-5 MHz, the high-frequency carrier waves and display driving signals of 50-200 kHz are transmitted in parallel in the same time period, and delay caused by time sharing is avoided.

The present application relates to a liquid-crystalline medium, which preferably has a nematic phase and a dielectric anisotropy of 0.5 or more, comprising one or more compounds of formula T in which the symbols and the other parameters have the meanings given herein, to its use in electro-optical displays, in particular in active matrix displays based on the IPS or FFS effect, to such displays comprising such a liquid-crystalline medium and to the use of compounds of formula T for improving the transmission and / or the response time of a liquid-crystalline medium comprising one or more further mesogenic compounds.

A display panel, a method of manufacturing the same, and a display device are disclosed. Each of a first metal layer and a third metal layer of the display panel is formed by patterning a composite metal layer. A photolithography process is performed on the composite metal layer to form a first plate of a storage capacitor in a light-emitting area. A second plate of the storage capacitor is formed in the light-emitting area at the same time as a transparent oxide semiconductor layer is processed. Each of the first plate and the second plate is a transparent conductive film, so that a problem of low aperture ratios with current bottom-emission type active-matrix organic light-emitting diode (AMOLED) devices can be alleviated.

An apparatus and a system are provided. The system includes a top plate electrode, a dielectric layer, a plurality of pixel electrode circuits, and a plurality of detection circuits. A droplet is disposed between the top plate electrode and the dielectric layer. The plurality of pixel electrode circuits are arranged in a two-dimensional array. The pixel electrode circuits in each column of the two-dimensional array are electrically connected to a respective detection circuit of the plurality of detection circuits.

An active matrix substrate is provided which has a plurality of oxide semiconductor TFTs having a top gate structure and different characteristics. An active matrix substrate includes a first TFT and a second TFT each having an oxide semiconductor layer and a gate electrode disposed on a portion of the oxide semiconductor layer with a gate insulating layer interposed therebetween. In the first TFT, a first region of the oxide semiconductor layer, which is covered with the gate electrode with the gate insulating layer interposed therebetween, has a stacked structure including a lower oxide semiconductor film and an upper oxide semiconductor film throughout the region, and the upper oxide semiconductor film has a higher mobility than the lower oxide semiconductor film. In the second TFT, at least a portion of the first region of the oxide semiconductor layer includes one of the lower oxide semiconductor film and the upper oxide semiconductor film and does not include the other of the lower oxide semiconductor film and the upper oxide semiconductor film.

This invention relates to compounds of formula (I), and preferably to liquid crystal media having a nematic phase and negative dielectric anisotropy, comprising a) one or more compounds of formula (I) and b) one or more compounds selected from formulas (II) and (III), wherein the parameters have the meaning given in claim 1, their use in electro-optic displays, particularly in active matrix displays based on VA, ECB, PALC, FFS or IPS effects, displays of this type comprising liquid crystal media, and the use of compounds of formula (I) in stabilizing liquid crystal media comprising one or more compounds of formula (II) and one or more compounds selected from formulas (III-1) to (III-4) and B.

Light-emitting diode (LED) packages and more particularly error detection in LED packages is disclosed. LED packages are arranged for cascade communication as part of a larger LED display. A separate active electrical element is integrated with each LED package for facilitating active matrix addressing from a data stream, checking input error detection codes, and generating new output error detection codes to the data stream. Each electrical element within each LED package is separately capable of changing one or more portions of received data in the data stream, transmitting the changed data to the next downstream LED package, and generating output error detection codes based on the changed data. When the active electrical element identifies corrupted data based on input error detection codes, the generated output error detection codes may be intentionally corrupted so downstream LED packages will also identify the respective data as being corrupted.

The present invention relates to an active matrix digital display comprising a plurality of pixels, each pixel comprising a static memory for storing one or more values ​​of pixel intensity, and an interface, wherein the interface is configured to, upon reception of at least one command, obtain an identifier of the command type, and if the command type belongs to at least one type related to 2D shapes, read at least one parameter related to at least a pixel position in a display screen at a predefined position of the payload of the command, and write or read intensity values ​​of said subset of pixels from the payload of the command to or from the static memory of the subset of pixels of the screen based at least on said at least one parameter.

The invention discloses a focus-adjustable lens based on a flexible OTFT (Organic Thin Film Transistor) active matrix backboard and a driving method of the focus-adjustable lens, which are applied to the field of active matrix backboard control, programmable voltage field distribution and accurate modulation of a local refractive index are realized through point-by-point addressing of pixel electrodes, so that rapid zooming and aberration correction functions are achieved, a system adopts a low-temperature process, and the cost is low. A plastic film base material is compatible, roll-to-roll expansion manufacturing is supported, and meanwhile, the wavefront control precision and the response speed are improved by combining a submicron orientation / spacing structure. The implementation method comprises the following steps: designing an OTFT pixel array and an addressing circuit, preparing an active matrix backboard on a flexible substrate at low temperature, forming a pixel electrode, an orientation layer and a spacing structure, then pouring liquid crystal and completing packaging, writing in the OTFT array pixel by pixel through an addressing time sequence, and introducing wavefront or state feedback to carry out closed-loop iterative compensation. Therefore, programmable and high-precision zooming and local aberration real-time correction can be realized on the flexible platform.