A display device includes a display unit including transistors disposed in a display area and signal lines arranged in a non-display area located along an edge of the display area, at least one of the signal lines being electrically connected to the transistors; and an input sensing unit disposed over the display unit and including sensing electrodes disposed on the display area, sensing lines arranged on the non-display area, and a first dummy pattern disposed on the non-display area and spaced apart from the sensing electrodes as compared with the sensing line, wherein the first dummy pattern overlaps a first signal line of the signal lines, the first signal line being spaced farthest from the display area, a planar shape of an overlap pattern formed by overlapping the first dummy pattern and the first signal line coincides with a planar shape of an alignment mark.

A wiring circuit board includes an insulating layer, a wire embedded in the insulating layer, and an alignment mark electrically independent from the wire and disposed in the insulating layer so as to allow a one-side surface in a thickness direction of the alignment mark to be exposed from the insulating layer. A peripheral portion of the alignment mark consists of only the insulating layer and has a thickness of 30 μm or less.

A ceramic green sheet including a plurality of substrate forming regions. A barcode or a two-dimensional code is drawn in a portion of the ceramic green sheet. The barcode or the two-dimensional code is obtained by encoding one or more of the following information. Information relating to raw materials used when the ceramic green sheet is produced, information relating to molding conditions of the ceramic green sheet, information relating to a release agent used when a plurality of the ceramic green sheets are stacked, or a serial number.

A method of fabricating a transparent conductor is provided. The method includes forming a nanowire dispersion layer on a substrate, forming a nanowire network layer on the substrate by drying the nanowire dispersion layer, and forming a matrix material layer on the nanowire network layer.

The present disclosure provides a method, system and apparatus for detecting polarity of component, and a computer-readable storage medium. The component polarity detection method includes: selecting first component symbols similar to graphs in a pre-created template library of component polarity symbols from a polar graph layer of a to-be-detected printed circuit board (PCB), and sifting out second component symbols each having polarity from the selected first component symbols; and traversing each second component symbol having polarity, to detect whether a polarity symbol that has been already stored in the template library is in the second component symbol having polarity; if yes, examining whether a polarity position of the polarity symbol in the second component symbol is correct; and if the polarity position is incorrect, outputting a report indicating that the polarity position of the polarity symbol in the second component symbol is incorrect.

A method for producing a labeled printed circuit board, as well as a labeled electric printed circuit board. In order to provide a method for producing a labeled printed circuit board that is particularly fast and energy-conserving and does not require any systems with high procurement and operating costs, initially a substrate with conductor tracks is supplied, which is then coated with a functional lacquer layer on at least one surface. A labeling of the substrate in different color shades of the functional lacquer layer is also carried out.

Embodiments of present invention provide a multilayer printed circuit board. The printed circuit board includes a first conducting layer (CL) having a first measurement mark area (MMA) and a second CL having a second MMA. A first polygonal measurement mark (MM) in the first MMA and a second and a third polygonal MM in the second MMA, wherein the second polygonal MM is positioned along an extended first angle bisector bisecting a first vertex of the first polygonal MM and a first vertex of the second polygonal MM is substantially aligned with the first vertex of the first polygonal MM, and wherein the third polygonal MM is positioned along an extended second angle bisector bisecting a second vertex of the first polygonal MM and a first vertex of the third polygonal MM is substantially aligned with the second vertex of the first polygonal MM.

A panel alignment device for a display device includes a stage supporting a panel and including a transmitting portion that includes a first region having a first thickness and a second region having a second thickness greater than the first thickness, a head disposed over the stage and supporting a driving chip, a vision camera which is disposed under the stage, captures a first alignment mark of the panel through the first region, and captures a second alignment mark of the driving chip through the second region, and a controller which controls at least one of a movement and a rotation of each of the stage and the head based on first image information related to a position of the first alignment mark and second image information related to a position of the second alignment mark.

Apparatuses, systems, and methods for verifying fingerprints associated with components to be installed on printed circuit boards (PCBs). In at least one embodiment, one or more processors determine whether a component fingerprint associated with a component to be installed on the PCB corresponds to an expected fingerprint, the component fingerprint based, at least in part, on a firmware version associated with the component.

Provided is a wiring circuit board and a wiring circuit board assembly that allow suppression of the recognition error of the dot pattern. The wiring circuit board includes a metal supporting layer, an insulating base layer, and a wiring layer. The wiring circuit board further includes a plurality of streak groove portions disposed on one surface of the metal supporting layer in the thickness direction and a plurality of concave portions depressed in the metal supporting layer in the thickness direction. The plurality of concave portions forms a dot pattern. Each of the dots in dot pattern has one concave surface. The concave surface has an approximately spherical cap shape or an approximately cone shape.