Abstract: By stretching a semi-crystalline CBC film, an in-plane orientated compensation film could be obtained with good optical transparency and significantly higher retardation values at a much lower film thicknesses because of a relatively high amount of birefringence per unit thickness.

Abstract: This invention discloses a method for extending the shelf life of polyamic ester (PAE) solutions during the manufacturing of positive-type photosensitive polyimide (PSPI) precursor resins. With the addition of certain acids within a specified loading range to the reaction solution after the acetal esterification reaction, the shelf of the PAE solution can be significantly increased by decreasing the rate of imidization. The acid additive may consume part or all of the impurities generated from the acetal esterification reaction, which improves the stability of the PAE polymer. This invention substantially improves the feasibility and manufacturing cost of positive-type PSPI precursor polymers.

Abstract: A process for the preparation of an aromatic polyimide substrate for optical displays that can be carried out during the manufacture of a display, which includes the steps of coating a solution of an aromatic tetracarboxylic acid or an aromatic tetracarboxylic acid derivative and a low molecular weight polyamic acid on a solid support and subsequent heating. The polyamic acid is prepared from non-stoichiometric amounts of 3,3?,4,4?-biphenyltetracarboxylic dianhydride and p-phenylenediamine.

Abstract: The present disclosure relates to the technical field of robots, and in particular, discloses a map alignment method.

Abstract: The components and methods disclosed herein are directed to positive type photosensitive resin compositions, which are comprised of an alkynyl containing polymer, a benzophenone type DNQ, and solvents. The alkynyl containing polymer is prepared by the condensation reaction of alkynyl containing dianhydrides and hydroxyl containing diamines, and alkynyl containing end cappers. The advantage of this formulation is that the resulting photosensitive resin composition is comprised of only a polymer, a benzophenone type DNQ PAC, and solvents that generates high resolution patterned films with good thermal and physical properties without using additional additives. This composition also enables film curing at relatively low temperatures without additional additives, simplifying the composition. After curing, the alkynyl units in the polymer chain and the chain ends give the cured film excellent solvent resistance and film retention due to intra and/or inter-molecular crosslinking.

Abstract: Disclosed herein is a method for the preparation of an aromatic polyimide substrate for optical displays that can be carried out during the manufacture of the display, The process includes the steps of applying a solution of an aromatic tetracarboxylic acid or an aromatic tetracarboxylic acid derivative and a low molecular weight polyamic acid on a solid support and heating to 425° C. to 450° C. The polyamic acid is prepared from non-stoichiometric amounts of BPDA and PDA. The tetracarboxylic acid is BPTA or PMA. The solution has a solids content of 15 to 25 wt % and an apparent viscosity of 2,000 to 10,000 cPs. The substrate has an elongation to break of greater than 30%, a modulus greater than 8 GPa, a maximum stress to break greater than 400 MPa, and a yellowness factor b*<25. For display manufacturing, the substrate has a softening temperature above 450° C.

Abstract: An optical compensation film with unique retardation including a compatible blend of a positive birefringent (C+) component, a negative birefringent (C?) component and a compatibilizing component may be prepared as follows: a block copolymer is prepared containing one of the birefringent materials, for example a negative birefringent material, and a less birefringent component. The copolymer is then blended with the second birefringent material, for example a positive birefringent material to form a compatible blend, even though the two birefringent materials are not compatible. The less birefringent component of the copolymer does not have to be compatible with the birefringent component in the copolymer.

Abstract: A repairing method for an array substrate is provided. The array substrate includes at least one defective signal line, which is a data line or a gate line having a breakpoint. The defective signal line is divided by the breakpoint into a first portion and a second portion. The repairing method includes disconnecting a connection between a first thin film transistor and a data line or a gate line to which the first thin film transistor is connected, the first thin film transistor being a thin film transistor closest to the breakpoint among thin film transistors connected to the first portion; electrically connecting a first terminal of the first thin film transistor to the first portion; and taking a common electrode line segment from a common electrode line to which the first pixel electrode corresponds as a repair line.

Abstract: A repairing method for an array substrate is provided. The array substrate includes at least one defective signal line, which is a data line or a gate line having a breakpoint. The defective signal line is divided by the breakpoint into a first portion and a second portion. The repairing method includes disconnecting a connection between a first thin film transistor and a data line or a gate line to which the first thin film transistor is connected, the first thin film transistor being a thin film transistor closest to the breakpoint among thin film transistors connected to the first portion; electrically connecting a first terminal of the first thin film transistor to the first portion; and taking a common electrode line segment from a common electrode line to which the first pixel electrode corresponds as a repair line.

Abstract: The present disclosure provides an array substrate and a method for repairing the same, and a display panel. The array substrate includes gate lines extending in a first direction, and data lines and common electrode lines extending in a second direction. The gate lines intersect with the common electrode lines and the data lines to define pixel units. Every two adjacent pixel units at two sides of a common electrode line constitute a pixel unit group. Common electrodes of two pixel units in a pixel unit group are each connected to a common electrode line therebetween. The array substrate further includes a repairing structure including a first repairing line, a second repairing line at two sides of a data line, respectively, and a middle line intersecting with the data line and connecting a first point of the first repairing line and a second point of the second repairing line.

Abstract: Disclosed is a process for making nitrated styrenic fluoropolymers having various degrees of substitution. The nitrated styrenic fluoropolymer is capable of providing an exceptionally high birefringence ranging from 0.02 to 0.036. Further, the birefringence can be tuned by varying the degree of substitution (DS) of the nitro group on the styrenic ring to meet the need for optical compensation film applications. More particularly, the optical compensation films of the present invention are for use in an in-plane switching LCD (IPS-LCD) and OLED display.

Abstract: Embodiments include a system, method and controller for tracking service mechanic status. The embodiments include a controller of an elevator system that is operably coupled to an elevator, wherein the controller is configured to control the elevator and detect a status of the elevator, and a processor operably coupled to the controller and a memory, wherein the memory is configured to store responder information, wherein the processor is configured to receive responder information from the memory and generate notification information based at least in part on the responder information. In addition, the embodiments include an interface unit for transmitting the notification information, and a notification unit operably coupled to the elevator and is configured to provide the notification information.

Abstract: The present disclosure provides an array substrate and a method for repairing the same, and a display panel. The array substrate includes gate lines extending in a first direction, and data lines and common electrode lines extending in a second direction. The gate lines intersect with the common electrode lines and the data lines to define pixel units. Every two adjacent pixel units at two sides of a common electrode line constitute a pixel unit group. Common electrodes of two pixel units in a pixel unit group are each connected to a common electrode line therebetween. The array substrate further includes a repairing structure including a first repairing line, a second repairing line at two sides of a data line, respectively, and a middle line intersecting with the data line and connecting a first point of the first repairing line and a second point of the second repairing line.

Abstract: Disclosed is a multilayer optical compensation film comprising a first layer comprising a positive C-plate material and a second layer comprising a polyimide, as well as polymer compositions and resins and solutions containing said polymer compositions. The optical compensation film has a reversed wavelength dispersion that is capable of providing an achromatic (or broadband) retardation compensation. The optical film can be used in optical devices such as liquid crystal displays (LCD) or organic light emitting diode (OLED) displays.

Abstract: Disclosed is an optical compensation film made of a solution cast of a polymer blend comprising a nitrated styrenic fluoropolymer and a polyimide. The compensation film is a positive-C plate having reversed wavelength dispersion that is capable of providing an achromatic (or broadband) retardation compensation. The optical film of the invention can be used in an optical device such as liquid crystal display (LCD) or organic light emitting diode (OLED) display.

Abstract: Disclosed is an optical compensation film made of a solution cast of a polymer blend comprising a nitrated styrenic fluoropolymer and a polyimide. The compensation film is a positive-C plate having reversed wavelength dispersion that is capable of providing an achromatic (or broadband) retardation compensation. The optical film of the invention can be used in an optical device such as liquid crystal display (LCD) or organic light emitting diode (OLED) display.

Abstract: Disclosed is a multilayer optical compensation film comprising a first layer comprising a positive C-plate material and a second layer comprising a polyimide, as well as polymer compositions and resins and solutions containing said polymer compositions. The optical compensation film has a reversed wavelength dispersion that is capable of providing an achromatic (or broadband) retardation compensation. The optical film can be used in optical devices such as liquid crystal displays (LCD) or organic light emitting diode (OLED) displays.

Abstract: Disclosed are optical compensation films with exceptionally high positive out-of-plane birefringence. The optical compensation films are based on substituted styrenic fluoropolymers and have positive out-of-plane bireftingence greater than 0.02 throughout the wavelength range of 400 nm<?<800 nm. The optical compensation films of the invention are suitable for use in optical devices such as liquid crystal display (LCD) devices and organic light emitting diode (OLED) display devices.

Abstract: Disclosed is a process for making nitrated styrenic fluoropolymers having various degrees of substitution. The nitrated styrenic fluoropolymer is capable of providing an exceptionally high birefringence ranging from 0.02 to 0.036. Further, the birefringence can be tuned by varying the degree of substitution (DS) of the nitro group on the styrenic ring to meet the need for optical compensation film applications. More particularly, the optical compensation films of the present invention are for use in an in-plane switching LCD (IPS-LCD) and OLED display.

Abstract: A method for forming a conductive region on a first portion of a substrate, the method being constituted by exposing the first portion to a filtered beam of substantially fully ionised metallic ions under a pulsed, modulated electrical bias. The method uses FCVA (Filtered Cathodic Vacuum Arc) techniques to generate the filtered ion beam and permits the formation of a conformal metal coating, even in high aspect ratio visa and trenches. The method also permits the in-filling of vias and trenches to form conductive interconnects. Particular examples concern the deposition of copper ions. An adapted FCVA apparatus deposits metals on substrates. A control apparatus controls ion beams impacting upon substrates, the control apparatus being suitable for incorporation within existing filtered ion beam sources.