Structure of optic film

• US 7,572,046 B2
• Filed: 10/22/2007
• Issued: 08/11/2009
• Est. Priority Date: 11/22/2006
• Status: Expired due to Fees

• Current Assignee: Chien-Chin Mai, Gamma Optical (Samoa) Co., Ltd. (Jia Wei Lifestyle, Inc.)
• Original Assignee: Chien-Chin Mai, Gamma Optical (Samoa) Co., Ltd. (Jia Wei Lifestyle, Inc.)
• Inventors: Mai, Chien-Chin
• Primary Examiner(s): TSO, LAURA K
• Application Number:
  US11/875,970
• Publication Number:
  US 20080117638A1
• Time in Patent Office: 659 Days
• Field of Search: 362/627, 362/628, 362/558, 362/244, 362/246, 362/222, 362/223, 362/326, 362/329, 362/330, 362/240
• US Class Current: 362/628
• CPC Class Codes: G02B 5/045 Prism arrays
• CPC Class Codes: G02B 6/0053 Prismatic sheet or layer; Brightness enhancement element, sheet or layer

Abstract

An optic film has a surface on which a plurality of rib-like micro light guides is formed. Each light guide includes a plurality of ridges, which are of different height and shows variation of height. Either a high ridge or a low ridge of the light guide is made a continuous left-and-right wavy configuration and/or a continuous up-and-down height-variation configuration. Thus, light transmitting through the optic film and converged by the light guides leaves the optic film in a form that is not very regular so as to facilitate subsequent use of the light in for example a liquid crystal display panel.

Claims

1. An optic film having a surface on which a plurality of micro light guides is formed, wherein the light guide comprises at least two ridges of identical height, and a first number of the ridges of the light guide are of a continuous left-and-right wavy configuration, while a second number of the ridges are of a straight linear configuration.

2. An optic film having a surface on which a plurality of micro light guides is formed, wherein the light guide comprises at least two ridges of identical maximum height, and a first number of the ridges of the light guide are of a continuous up-and-down height-variation configuration, while a second number of the ridges are of fixed heights.

3. An optic film having a surface on which a plurality of micro light guides is formed, wherein the light guide comprises at least two ridges of identical maximum height, and each ridge of the light guide is of both a continuous left-and-right wavy configuration and a continuous up-and-down height-variation configuration.

4. An optic film having a surface on which a plurality of micro light guides is formed, wherein the light guide comprises at least two ridges of identical maximum height, and a first number of the ridges of the light guide are of a continuous left-and-right wavy configuration, while a second number of the ridges are of a continuous up-and-down height-variation configuration.