A printing data generation device generates printing data for printing only one part of a specific image in a solar cell module. The solar cell module includes a solar cell module body and a print layer that is formed further toward a light-receiving surface side than the solar cell module body by printing with a specific transparency in a specific region. A rear surface side is visible from the light-receiving surface side in at least part of the specific region. The specific transparency is set such that a condition A is satisfied, the condition A being that a spectral sensitivity integral ratio A defined by formula (1), shown below, is not less than 0.6 when printing is performed with a transparency resulting in a short circuit current ratio of 0.6,

[00001]$\begin{array}{cc}A=\frac{{}_{360}^{830}\left(f\left(\right)\right)d}{{}_{360}^{830}\left(f_{\mathrm{SC}}\left(\right)\right)d}& \mathrm{Formula}\left(1\right)\end{array}$

The invention is a system and method used to prepare an optical device with external branding on a first surface while also ensuring internal visibility preservation. The optical device includes multiple layers that provide functional aspects to the optical device. Specifically, the optical device includes an image layer, a mirrored one-way layer, a color conversion layer, a lens, and an anti-reflective layer. The combination of the optical device layers ensures an image printed on the first surface of the device is fully visible on, while the view from the opposed second surface (e.g., the view of the user) is uninhibited by the image.

The present disclosure provides a high-refractive index acrylic formulation embedded with sub-30 nm metal oxide nanocrystals. The formulation is solvent-free, low-viscosity, inkjettable (among other film deposition techniques) and produces high-refractive index, high transparency nanocomposites for a variety of optical applications including OLED lighting and display applications.

An ink jet printing method of tinting a spectacle lens substrate includes providing a spectacle lens substrate having a front surface and a back surface, printing droplets of a first inkjet printing ink to form a first layer and droplets of a second inkjet printing ink to form a second layer, and curing the first layer and the second layer together in a combined curing step. The spectacle lens substrate can optionally be precoated. At least one inkjet printing ink is colored. The first layer and second layer each cover fully or partially the front surface and/or back surface, and at least partially overlap to form a stack. Moreover, a tinted spectacle lens having a non-linear color gradient, contoured di- or polychromatic pattern, contoured di- or polychromatic figure, di- or polychromatic alphabetic code, di- or polychromatic numerical code, di- or polychromatic alphanumerical code is disclosed.

An inkjet printing device includes a chamber having an imaginary centerline that divides a length of the chamber in the first direction into two halves, and a plurality of inkjet nozzles coupled to the chamber and receiving ink from the chamber, the inkjet nozzles being arranged in a plurality of columns along a first direction. The inkjet nozzles include a center column nozzle disposed adjacent to the centerline of the chamber and an outer column nozzle disposed farther from the centerline than the center column nozzle. The chamber includes a bump portion disposed farther from the centerline than the outer column nozzle, the bump portion including a bump on an inner surface of the chamber.

A computer-implemented method for determining printing parameter values of an inkjet printing device for printing a pattern on a surface of a spectacle lens substrate is provided. The inkjet printing device includes a printhead with a plurality of printing nozzles. The method includes: grouping the plurality of printing nozzles into at least two printing nozzle groups, and individually determining a printing parameter value for at least one adjustable printing parameter of each printing nozzle group. In addition, a data processing system, a computer program, a non-transitory computer-readable storage medium, a method for inkjet printing, an inkjet printing device, and a spectacle lens substrate with a pattern printed on a surface of the spectacle lens substrate are provided.

An inkjet printing device includes a chamber having an imaginary centerline that divides a length of the chamber in the first direction into two halves, and a plurality of inkjet nozzles coupled to the chamber and receiving ink from the chamber, the inkjet nozzles being arranged in a plurality of columns along a first direction. The inkjet nozzles include a center column nozzle disposed adjacent to the centerline of the chamber and an outer column nozzle disposed farther from the centerline than the center column nozzle. The chamber includes a bump portion disposed farther from the centerline than the outer column nozzle, the bump portion including a bump on an inner surface of the chamber.

A color conversion panel includes: a substrate; a plurality of color filters on the substrate; a partition wall on the substrate, and including a first opening, a second opening, a third opening, and a sub-opening; a first color conversion layer disposed in the first opening of the partition wall; a second color conversion layer disposed in the second opening of the partition wall; a transmission layer disposed in the third opening of the partition wall; an additional layer disposed in the sub-opening of the partition wall; and a spacer on the additional layer.

A method for manufacturing a visual display assembly, comprising: providing a film of transparent material comprising a first surface and a second surface opposite the first surface, the first surface comprising an array of lenses comprising information that is arranged so as to be capable of providing multiple images when the images are viewed from different predetermined angles through the lenses; placing a screen-printing fabric in proximity to the first surface in order to form a pattern or printed image; applying a layer of ink or varnish to the screen-printing fabric allowing the ink or varnish to pass through for placement on a portion of the first surface; wiping the ink or varnish by means of a squeegee over the screen-printing fabric.