Lg Electronics Inc.

Lg Micron Ltd.

Gun-Woo Lee

Young-Joo Yee

Hyouk Chon Kwon

Chang-hoon Oh

Ki-Won Park

Dong-Mug Seong

Tae-Sun Lim

Disclosed herein are a microlens array sheet having a black matrix and a method for manufacturing the same. The manufacturing method includes a) the step of defining the regions of light apertures, through which condensed light passes, in a negative-type light-sensitive resin layer by radiating and condensing parallel light after sequentially laying a microlens array layer, a transparent support substrate or film layer and the negative-type light-sensitive resin layer one on top of another, and b) eliminating portions other than the regions of the light apertures formed in the light-sensitive resin layer, and forming a black matrix layer in regions where the portions have been eliminated.

Microlens array sheet having black matrix and method of manufacturing the same

A microlens array sheet and a manufacturing method thereof. The microlens array sheet comprises: a transparent substrate; bases formed on the transparent substrate, the bases having the same height as a result of a planarization process conducted for the upper portions of the bases, microlenses formed on the bases; and a gap-filling film applied on the resulting structure, in which the bases have the same height. The method comprises the steps of: depositing base-forming molds on a transparent support substrate or film and loading a material to be used as bases between the base-forming molds; polishing the upper portion of the material for use as bases so as to form bases having the same level, and removing the base-forming molds; depositing microlenses on the formed bases; and depositing a gap-filling film on the resulting structure.

Microlens array sheet and manufacturing method thereof

The present invention discloses a microlens array sheet of a projection screen including a lens sheet having a predetermined area, microlenses arranged on one surface of the lens sheet in the horizontal and vertical directions, a black matrix including apertures corresponding to the microlenses, and being adhered to the other surface of the lens sheet, an optical diffusing layer formed on the lens sheet to cover the black matrix, for widening a viewing angle, and a protecting film for protecting the optical diffusing layer. The microlens array sheet of the projection screen is manufactured by using a process for manufacturing a semiconductor device, a reflow process and a plating process for a mold, thereby improving luminance and definition of the projection screen at a low unit cost of production.

Microlens array sheet of projection screen, and method for manufacturing the same

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Daegu, South Korea

Gun-Woo Lee