Site News  |   Monitor Keywords  |   Monitor Archive  |   Organizer  |   Account Info  |

Methods of making light diffusing films and articles using the same

Methods of making light diffusing films and articles using the same description/claims

This application is a divisional application of U.S. patent application Ser. No. 11/936,445 filed Nov. 7, 2007, which is a divisional application of U.S. patent application Ser. No. 11/133,983, filed May 20, 2005 and of U.S. patent application Ser. No. 11/382,097, filed May 8, 2006, which is a continuation-in-part application of U.S. patent application Ser. No. 11/381,023, filed May 1, 2006, and is a continuation-in-part application of U.S. patent application Ser. No. 11/133,983, filed May 20, 2005, all of which are hereby incorporated by reference in their entirety.

In many backlight display devices, for example in liquid crystal display televisions (LCD TV), there is a demand for larger and larger displays. As the size of a display increases, the number of light sources (e.g., a cold cathode fluorescent lamp (CCFL)) used to backlight the display can also increase. Accordingly, the backlight display system can desirably comprise a light diffusing film (also referred to as a light diffusing sheet, a plate, and the like). Examples of the utility of the light diffusing film includes, but is not limited to, hiding the light and dark pattern that can be created by an array of CCFLs, hiding injection molded patterns or printing on a light guide of the display device, providing uniformity in illumination, and the like.

Accordingly, a continual need exists in the art for improved light diffusing devices, especially those light diffusing films employed in LCD TVs.

Disclosed herein are methods of making light diffusing films and articles using the same.

In one embodiment, a method for producing a film, comprising: combining, to form a combination, a polycarbonate having a yellowness index of about 0.8 to about 1.5 as measured in accordance with ASTM E313-73 (D1925), a phosphite stabilizer, an epoxy stabilizer, and light diffusing; forming the combination into the film; wherein the film comprises a hiding power of 0 to about 0.5 that is mathematically described by the following equation:

Hiding   power

Continue reading about Methods of making light diffusing films and articles using the same...
Full patent description for Methods of making light diffusing films and articles using the same

Brief Patent Description - Full Patent Description - Patent Application Claims

Click on the above for other options relating to this Methods of making light diffusing films and articles using the same patent application.

Patent Applications in related categories:

20090294998 - Method and apparatus for producing embossed sheet - A method of producing an embossed sheet includes the steps of allowing a flexible strip-shaped sheet to continuously travel, forming a coating layer by coating the surface of the sheet with a radiation curable resin, transferring a pattern of concavities and convexities on the surface of the emboss roller to ...


###


How KEYWORD MONITOR works... a FREE service from FreshPatents
1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored.
3. Each week you receive an email with patent applications related to your keywords.  
Start now! - Receive info on patent apps like Methods of making light diffusing films and articles using the same or other areas of interest.
###


Previous Patent Application:
Methods of making high gain optical devices having a continuous and dispersive phase
Next Patent Application:
Method of releasing contact lens
Industry Class:
Plastic and nonmetallic article shaping or treating: processes

###

• Provisional Patent
• Utility Patent

• What Is a Patent?
• What Is a Trademark or Servicemark?
• What Is a Copyright?
• Patent Laws