Patent classifications
H05K9/0096
Conductive film, display device provided with same, and method for evaluating conductive film
The conductive film includes a transparent substrate and a conductive portion having a wiring pattern, in which when the wiring pattern is observed from at least one visual point, with respect to frequencies and intensities of moires which are calculated respectively from peak frequencies and peak intensities of predetermined data and peak frequencies and peak intensities of another predetermined data, an evaluation index of moire, which is calculated from evaluation values of moires obtained by applying visual response characteristics of a human being to the intensities of the moires according to an observation distance at the frequencies of the respective moires that are equal to or lower than the maximum frequency of moire specified according to display resolution of the display unit, is equal to or less than a predetermined value.
METHOD FOR PRODUCING ELECTRICAL WIRING MEMBER AND ELECTRICAL WIRING MEMBER
[Object] To provide a method for producing an electrical wiring member having a layered structure of copper wiring and a blackening layer and to provide the electrical wiring member through a search for a material for the blackening layer, the material being etched at a rate close to that for the copper wiring under conditions where etching controllability is ensured. [Solution] A method for producing an electrical wiring member according to the present invention includes a step of forming, on at least one main surface of a substrate, a layered film 6 of a Cu layer 3 and CuNO-based blackening layers (2a and 2b); a step of forming a resist layer 4a in a predetermined region on the layered film 6; and a step of removing a partial region of the layered film 6 by bringing the layered film 6 into contact with an etchant.
CONDUCTIVE SHEET
Provided is a conductive sheet including a transparent conductive layer and a brightness enhancement film, in which interlayer peeling hardly occurs. A conductive sheet of the present invention includes a brightness enhancement film, a resin layer, and a transparent conductive layer in the stated order. In one embodiment, the transparent conductive layer contains metal nanowires. In one embodiment, the metal nanowires include silver nanowires. In one embodiment, the transparent conductive layer further contains a binder resin.
Conductive film, display device equipped with same, and method for determining pattern of conductive film
This conductive film has a randomized wiring pattern having randomized rhomboid shapes obtained by giving irregularity in a predetermined range to rhomboid shapes of a rhomboidal wiring pattern which, with respect to frequencies of moire and intensities of moire obtained by applying a visual response characteristic of human beings to frequency information of moire and intensity information of moire calculated from peak frequencies and peak intensities in both two-dimensional Fourier spectra of transmittance image data of the wiring pattern and transmittance image data of the pixel array pattern, causes a sum of intensities of moire each corresponding to each of frequencies of moire falling within a predetermined frequency range determined depending on the visual response characteristic to be less than or equal to a predetermined value. The conductive film allows suppression of moire and significant improvement in visibility.
NEAR-FIELD ELECTROMAGNETIC WAVE ABSORBING FILM
A near-field electromagnetic wave absorbing film comprising a plastic film, and a single- or multi-layer, thin metal film formed on its surface; the thin metal film having laser-beam-bored holes of 200 μm or less in diameter with intervals of 50 μm or less on the entire surface, and pluralities of openings as large as giving transmission viewability partially on the surface.
CONDUCTIVE FILM, DISPLAY DEVICE HAVING THE SAME, AND METHOD OF EVALUATING CONDUCTIVE FILM
A conductive film has a polygonal wiring pattern which allows an indicator of evaluation of noises to be equal to or less than an evaluation threshold value. Here, from at least one point of view, in frequencies and intensities of noises each calculated for each color from first and second peak frequencies and first and second peak intensities of 2DFFT spectra of transmittance image data of a combined wiring pattern including a random mesh pattern of a plurality of thin metal lines of a wiring portion and luminance image data of a pixel array pattern of each color at the time of lighting on for each single color, the indicator of evaluation of noise is calculated from evaluation values of noises of the respective colors obtained by applying human visual response characteristics in accordance with an observation distance to intensities of the noises equal to or greater than a first intensity threshold value among intensities of the noises at frequencies of noises equal to or less than a frequency threshold value defined by a display resolution of a display unit.
DISPLAY DEVICE
In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.
Patterned substrates with non-linear conductor traces
The present disclosure provides an article having (a) a substrate having opposing first and second surfaces; and (b) a conductor micropattern disposed on the first surface of the substrate. The conductor micropattern has a plurality of traces defining a plurality of open area cells. The conductor micropattern has an open area fraction greater than 80% and a uniform distribution of trace orientation. Each of the traces is non-linear and has a trace width from 0.5 to 10 micrometer. The articles are useful in devices such as displays, in particular, touch screen displays useful for mobile hand held devices, tablets and computers. They also find use in antennas and for EMI shields.
Display device
A display device having a display panel, a conductive shielding film disposed on a surface of the display panel, and a flexible circuit unit connected to another surface of the display panel and configured to provide a driving signal to the display panel, wherein the shielding film has at least one protrusion disposed adjacent the flexible circuit unit.
TRANSPARENT EMI SHIELDING/ABSORBING FILM
A transparent EMI shielding/absorbing film is provided. The transparent EMI shielding/absorbing film includes a transparent substrate having a top surface on which a pattern having a plurality of engraved grooves is disposed, a conductive layer disposed in the grooves, and a conductive nanowire layer disposed on the top surface of the transparent substrate and electrically connected with the conductive layer.