320 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.

A phase shifter includes an active matrix transistor array. Each transistor of the active matrix transistor array is configured to control a voltage bias across a corresponding voltage-controlled capacitor of voltage-controlled capacitors to control a capacitance of the corresponding voltage-controlled capacitor. The phase shifter further includes signal channels. Each signal channel of the signal channels has a first end and a second end and is AC coupled at a point between the first end and the second end to one or more of the voltage-controlled capacitors. The phase shifter is configured to control a phase shift applied to each corresponding signal channel of the signal channels by setting the voltage bias across each of the one or more of the voltage-controlled capacitors coupled to the corresponding signal channel.

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 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 stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

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.

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.

Liquid-crystalline (LC) media or LC materials and energy saving liquid-crystal displays (LCDs) containing these media, especially 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 stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

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 stabilised SA-HB-FFS, polymer stabilised SA-XB-FFS, positive VA or positive PS-VA type.

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.

Systems and methods for dynamic video timing in display devices. A display control system includes an active matrix, a column driver, a row driver, and a controller. The active matrix includes a plurality of pixels forming a plurality of rows and a plurality of columns. The column driver is configured to control the plurality of columns of pixels. The row driver is configured to control the plurality of rows of pixels. The controller is configured to receive a plurality of scanlines forming a video frame, receive an indication of a scanline order, reorder the plurality of scanlines according to the scanline order, and control the row driver according to the reordered plurality of scanlines. The scanline order is indicative of an order at which the plurality of rows of pixels are controlled.

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.

Active matrix of LEDs (AM LED), which uses controlled resistors with memory as memory cells for pixels instead of capacitors. The LED cell voltage is controlled by a voltage divider on the controlled resistors.

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.

An active matrix substrate includes a substrate in which a notch or an aperture is formed, and electrodes. Each electrode includes at least either of: a capacitor forming portion that is arranged in a region other than a bypass region and overlaps with at least one of a plurality of bypass gate lines when viewed in a plan view; and an electrode layer portion that is formed in an electrode layer and that composes a bypass gate line interposed portion together with a source line layer portion formed in a source line layer in the bypass region. The electrode layer portion and the source line layer portion overlap with at least one of the bypass gate lines in the bypass region when viewed in a plan view, and at least one of the bypass gate lines is positioned between the electrode layer portion and the source line layer portion in a normal line direction of the 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

A backplane unit cell includes a first switch and a second switch (610, 910), a storage element (620), a comparator (810), a source (e.g., a current source or a voltage source) (630), wherein the source generates a drive signal to control the emission of a selected one of the light emitting elements (640) in a display, and wherein the drive signal is based on a power signal (975) selected by the second switch. A device includes: a backplane configured as an active matrix topology including a plurality of data columns and a plurality of row selections; and a set of electrical contacts associated with the active matrix topology and configured to electrically couple the backplane to a display having a plurality of light emitting elements configured as a passive matrix topology.

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 invention relates to a light-emitting display device (200) comprising a matrix of pixels, wherein each pixel is formed of three elementary emitting zones (201a, 201b, 201c) each comprising an OLED stack (205a, b, c) having a different colour, and wherein each zone is protected by a photoresist (280), two neighbouring control electrodes (202a, b; 202b, c; 202c, a) belonging to two neighbouring emitting zones (201a, b; 201b, c; 201c, a) each belonging to a different group of elementary emitting zones are separated by a trench (211) and have an insulating surface (223) covering the flanks of the neighbouring electrodes, and two neighbouring control electrodes (202a, a; 202b, b, 202c, c) belonging to two neighbouring emitting zones (201a, a; 201b, b; 201c, c) each belonging to the same group are separated by a trench (211) filled with a filling element (203), wherein, in each group of elementary emitting zones, the assembly of the OLED stack with its upper electrode is separated from the neighbouring assemblies by an encapsulating layer (290).

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.