267 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.

The invention relates to the technical field of organic light-emitting display data processing, in particular to an adaptive adjustment method for active matrix organic light-emitting display. In combination with current stress parameter fluctuation captured by the programmable current sampling module and heat distribution data of the temperature sensor network, the dynamic aging model micro-service cluster is input for parameter coupling calculation, and time-varying degradation characteristic parameters are output; the containerized simulation micro-service constructs a virtual aging scene based on the parameters and generates a compensation coefficient matrix; according to the method, the problem of compensation deviation caused by the fact that a traditional static model cannot adapt to current stress, temperature bias and a material relaxation coupling effect is solved, dynamic balance of display brightness, color gamut and power consumption is achieved, and the service life of a display panel is prolonged.

A high-density tactile sensing array based on a bionic microstructure comprises a flexible substrate for providing mechanical flexibility and packaging protection; the bionic microstructure layer is composed of a pyramid array or a hemisphere array and is used for enhancing sensitivity and spatial resolution; the carbon nanotube (CNT) sensitive layer uniformly covers the surface of the microstructure and converts pressure change into an electric signal; according to the thin film transistor signal reading system, active matrix design is adopted, pixel-level signal extraction is achieved through a row-column addressing strategy, and electric signals are rapidly and accurately processed. According to the preparation method, photoetching, wet etching and hot reflux processes are combined, precision machining of a microstructure is achieved, and a uniform CNT sensitive layer is formed through a spraying technology. According to the design method, microstructure parameters and sensitive layer characteristics are optimized through equivalent circuit model construction and simulation verification, and collaborative optimization of high sensitivity and wide dynamic range is achieved. The invention has the advantages of high sensitivity, high spatial resolution, low crosstalk, quick response and the like.

The utility model relates to the technical field of television or display backlight equipment, and provides an active matrix driven Mini-LED backlight plate capable of achieving RGB independent control, the active matrix driven Mini-LED backlight plate comprises a substrate and a plurality of Mini-LED units arranged on the substrate in an array mode, and each Mini-LED unit comprises an RGB light-emitting unit, an RGB light-emitting unit, an LED light-emitting unit, an LED light-emitting unit and an LED light-emitting unit. Comprising a first blue light chip, a second blue light chip and a third blue light chip which are arranged on the substrate at intervals, and a green light conversion layer is arranged in the light emitting direction of the second blue light chip; a red light conversion layer is arranged in the light emitting direction of the third blue light chip; and the active driving unit is arranged on the substrate, is electrically connected to the RGB light-emitting unit, and is used for independently adjusting the brightness of the first blue light chip, the second blue light chip and the third blue light chip. The three chips of the RGB light-emitting unit are all connected with the driving unit through blue light chips, the brightness changes of the three chips along with changes of temperature, current and voltage are kept consistent, the situation of color shift can be greatly reduced, and the light-emitting stability is higher.

The present disclosure is applicable to a display apparatus-related technology field, and relates to, for example, a display apparatus using a micro light emitting diode (LED), which is a semiconductor light emitting device. The present invention provides a display apparatus using a light emitting device operated in an active matrix scheme, the display apparatus comprising: a substrate; a pixel area layer configuring multiple pixel areas, which are arranged on the substrate and each of which includes a light emitting area and a pixel transistor area; and an assembly wiring layer including multiple pairs of assembly wires arranged between the substrate and the pixel area layer, wherein each of the pixel areas may include a light emitting area in which a light emitting device is mounted, and a pixel transistor area, which is positioned in a first direction with respect to the light emitting area and in which a thin film transistor for lighting the light emitting device is disposed, and the assembly wires may be arranged in a second direction different from the first direction.

Liquid-crystalline (LC) media having positive dielectric anisotropy and liquid-crystal displays (LCDs) containing these media, especially displays addressed by an active matrix and in particular energy efficient LC displays of the TN, PSTN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type. The media have an improved long-term stability against UV radiation and elevated temperatures.

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.

Layered dielectric materials for use in controlling dielectric strength in microelectronic devices, especially as they relate to electrophoretic and electrowetting applications. Specifically, a combination of a first atomic layer deposition (ALD) step, a sputtering step, and a second ALD step result in a layer that is chemically robust and nearly pinhole free. The dielectric layer may be disposed on the transparent common electrode of an electrophoretic display or covering the pixelated backplane electrodes, or both.

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 present invention relates to liquid crystal (LC) media or LC materials, and to energy-efficient liquid crystal displays (LCDs) containing these media, in particular to game displays and AR / VR headphones addressed by active matrices, and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer-stabilized SA-HB-FFS, polymer-stabilized SA-XB-FFS, positive VA or positive PS-VA type.

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.

To provide an active matrix substrate that is suitably used for a liquid crystal display panel of an in-cell type touch panel and a manufacturing method thereof.SOLUTION: A method for manufacturing an active matrix substrate comprises the steps of: (A) forming a plurality of TFTs on a substrate; (B) forming an interlayer insulating layer covering the plurality of TFTs; (C) forming a plurality of touch wires on the interlayer insulating layer; (D) forming a first dielectric layer covering the plurality of touch wires; (E) forming a common electrode on the first dielectric layer; (F) forming a second dielectric layer covering the common electrode; and (G) forming a plurality of pixel electrodes on the second dielectric layer. The interlayer insulating layer includes an organic insulating layer, and the step (B) includes the step of (B1) forming, using a multi-tone photomask, an organic insulating layer having a plurality of openings and a plurality of bump portions protruding upward.SELECTED DRAWING: Figure 7

To provide a liquid crystal medium used in active-matrix displays based on the IPS or FFS effect.SOLUTION: A liquid crystal medium is provided containing a compound of the formula T, and a compound having a specific cyclohexylcyclohexenylbenzene structure. (In the formula, RS1 and RS2 each represent an alkyl group, alkoxy group, or the like, and YS1 and YS2 each represent H or F.)SELECTED DRAWING: None

An active matrix substrate is provided, comprising a plurality of oxide semiconductor TFTs having top gate structures and different characteristics. The active matrix substrate includes a first TFT and a second TFT having an oxide semiconductor layer and a gate electrode disposed on the oxide semiconductor layer across a gate insulating layer. In the first TFT, at least a portion of a first region of the oxide semiconductor layer covered by the gate electrode across the gate insulating layer has a stacked structure comprising a high-mobility oxide semiconductor film having relatively high mobility and a low-mobility oxide semiconductor film disposed on the high-mobility oxide semiconductor film with a lower mobility than the high-mobility oxide semiconductor film. In the second TFT, the first region of the oxide semiconductor layer comprises one of the high-mobility oxide semiconductor film and the low-mobility oxide semiconductor film throughout its entirety, but does not include the other oxide semiconductor film.

An object of the present invention is to more reliably suppress display defects while reducing the number of source wirings. The active matrix substrate includes a plurality of gate wirings, a plurality of source wirings, a plurality of column wirings, a plurality of switching elements, a plurality of pixel electrodes, and a plurality of connection electrodes that cross one column wiring of the plurality of column wirings via an insulating layer. The first pixel electrode and the third pixel electrode are disposed on one side of one column wiring, the second pixel electrode and the fourth pixel electrode are disposed on the other side of one column wiring, the third switching element is disposed on one side of one column wiring, the fourth switching element is disposed on the other side of one column wiring, the first pixel electrode is connected to the first switching element via the first connection electrode, the second pixel electrode is connected to the second switching element via the second connection electrode, the third pixel electrode is connected to the third switching element, and the fourth pixel electrode is connected to the fourth switching element.

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.

Electrophoretic displays with multi-particle electrophoretic media, and improved methods for driving such multi-particle electrophoretic media, in particular methods using active matrix backplanes and controllers. These driving methods use faster gate updates, and for a given pixel, groups of gate updates have different gaps between each other. These methods can be popularized to any electrophoretic display using push-pull waveforms, particularly suitable for novel multi-particle electrophoretic displays capable of producing four or more colors per pixel. By means of the method, the display effect of the electrophoretic display will not flicker compared with the traditional line-by-line constant frame spacing updating addressing.

The present invention relates to liquid-crystalline (LC) media having positive dielectric anisotropy and to liquid-crystal displays (LCDs) containing these media, especially to displays addressed by an active matrix and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

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.

A display device is provided. The display device includes a substrate including a sensor area, a first non-display area at least partially surrounding the sensor area, and a display area at least partially surrounding the first non-display area. A plurality of auxiliary pixels are disposed in the sensor area. The plurality of auxiliary pixels are configured for passive matrix driving. A plurality of primary pixels are disposed in the display area and configured for active matrix driving.

To provide liquid-crystalline media.SOLUTION: The present invention relates to liquid-crystalline (LC) media or LC materials and to energy saving liquid-crystal displays (LCDs) containing these media, especially to gaming displays and AR / VR headsets addressed by an active matrix and in particular to LC displays of the TN, PS-TN, STN, TN-TFT, OCB, IPS, PS-IPS, FFS, HB-FFS, XB-FFS, PS-FFS, SA-HB-FFS, SA-XB-FFS, polymer stabilized SA-HB-FFS, polymer stabilized SA-XB-FFS, positive VA or positive PS-VA type.SELECTED DRAWING: None

A touch panel system includes a touch panel and a controller. The touch panel includes an active matrix substrate, a color filter substrate, and a liquid crystal layer located between the active matrix substrate and the color filter substrate. The active matrix substrate includes a drive electrode and a detection electrode. The drive electrode and the detection electrode are disposed on a surface of the active matrix substrate which faces the liquid crystal layer. The color filter substrate includes a conductor. The conductor is disposed on a surface of the color filter substrate which faces the liquid crystal layer. The controller is configured to supply a drive signal to the drive electrode and obtain a signal value from the detection electrode and to detect a pressing force applied to the touch panel by an indicator, based on the signal value obtained from the detection electrode.

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.