基本信息:
- 专利标题： 近紅外線遮蔽薄膜
- 专利标题（英）：Near infrared ray shielding film
- 专利标题（中）：近红外线屏蔽薄膜
- 申请号：TW091113397 申请日：2002-06-19
- 公开(公告)号：TW591061B 公开(公告)日：2004-06-11
- 发明人： 大宅太郎
- 申请人： 帝人股份有限公司 TEIJIN LIMITED
- 申请人地址： 日本
- 专利权人： 帝人股份有限公司 TEIJIN LIMITED
- 当前专利权人： 帝人股份有限公司 TEIJIN LIMITED
- 当前专利权人地址： 日本
- 代理人： 林志剛
- 优先权： 日本 187872 20010621 日本 288623 20010921
- 主分类号： C08J
- IPC分类号： C08J ; G02B
1
1
-10
-10
式中T(450)、T(540)、T(620)、T(850)及 T(950)係分別為波長450、540、620、850及950nm之光的穿透率。
此薄膜之操作性佳、價廉、可見光之光線穿透率高，例如非常適用於具有防止由電漿顯示器之顯示面放射之近紅外光造成周邊機器之誤動作之功能之電漿顯示器之前面板用。
This invention provides a near infrared screening film which consists of a biaxially oriented film made from a polyester containing a near infrared light absorber having a weight reduction start temperature of at least 280 DEG C and which has a haze value of 5% or less and a total transmittance for visible lights having a wavelength of 400 to 650 nm of 40% or more and which is exemplified by having optical properties at visible and near infrared ranges which satisfy the following expressions (1) to (4): 1 < T(850) < 20 ... (1), 1 < T(950) < 20 ... (2), -10 < T(620)-T(540) < 10 ... (3), -10 < T(450)-T(540) < 10 ... (4), in which T(450), T(540), T(620), T(850) and T(950) are light transmittances at wavelengths of 450 nm, 540 nm, 620 nm, 850 nm and 950 nm, respectively. This film is inexpensive, has high handling ease, a high visible light transmittance and the function of preventing the malfunction of peripheral equipment caused by near infrared lights from the screen of a plasma display, for example, and can be suitably used in the front panel of the plasma display.