TWM289203U - Optical film structure of plasma display panel - Google Patents

Description

M289203 VIII. New description: [New technical field] This work is about optical film structure, which has coatings coated with different optical properties on the film, used in general display devices, especially plasma flat panel displays and cathode rays. A light-emitting device such as a tube display. [Prior Art]

Light-emitting devices such as plasma flat panel displays and cathode ray tube displays are harmful to health problems due to electromagnetic wave emission problems. Moreover, due to the high color purity and brightness effects of light patterns emitted by display devices, some current An optical filter for a plasma display plate, which mainly comprises a structure of an optical film. The performance evaluation methods of optical films mainly include anti-reflection ability, Neon-cut ability, near-infrared (NIR) barrier or absorption rate, and panel protection performance. Most of the conventional optical films have only one of the optical properties. For example, US Patent No. 2,0 2,180,324 discloses an electromagnetic wave radiation protection sheet comprising a transparent substrate, a mesh metal conductive layer and a polymer resin coating. It has the function of electromagnetic wave radiation protection and maintains high light transmittance. If the optical film is to have multiple optical properties at the same time, it is feasible to apply a single substrate as a plurality of coating procedures, but the technical difficulty occurs when formulating the mixing practice, because other optical deviations are easily caused or other properties are not easily controlled. The cause of change often leads to the phenomenon of losing one. Still another attempt is to coat individual substrates and then to bond a plurality of substrates together. For example, U.S. Patent No. 2,0,0,0,3,0,3, 3, discloses an optical film, Near-infrared (NIR) M289203 of a specific wavelength range of light has a barrier or absorption capability, characterized by an underlying material that is protected by electromagnetic radiation and a near-infrared (NIR) absorbing compound. In addition, in order to meet the needs of the client, such as panel manufacturers, optical film manufacturers need to provide displays with different appearances of hue to increase manufacturing costs. Because the panel manufacturers have different background colors, their requirements for reflected hue or absorbed hue. Different optical specifications, the optical film manufacturers must decompose each optical film layer to provide panel manufacturing technology compatibility, and to meet the appearance of each panel manufacturer. Practices, because they are adjusted or developed separately, are not only inefficient, but also for optical film manufacturers, the conventional methods also have problems such as complicated processes and unstable yield. [New Content] The purpose of this creation is to provide an optical film structure with complex optical properties, which solves the problem of having to individually apply individual substrates or formulating mixed practices. The purpose of the present invention is to provide an optical film structure having a plurality of optical properties including at least anti-reflection (AR), color purity enhancement (Neon-cut), near-infrared (NIR) barrier or absorption, and panel protection. It is characterized in that the transparent substrate surface of the optical film structure has a coating having a plurality of optical properties and the optical film structure has a reduced thickness. The complex optical performance can be added to other anti-reflective (AR) coating structures to add other electromagnetic radiation protection (EMI) performance, anti-glare properties, anti-fouling properties, antistatic properties, ultraviolet properties, brightness enhancement or optical clarity. Materials that enhance performance; additional optical properties can be added separately to the anti-M289203 emitter layer 1 (AR) or for hybrid applications. The optical film structure having complex optical properties of the present invention comprises at least: a first film 'coated on the first surface of the transparent substrate 0 2 coated with the anti-reflection layer 〇 1 and coated on the second surface with near infrared absorption or The shielding layer 〇6; a second film comprising a coating layer 7 composed of a color correction layer material and an adhesive, as a adhesion between the first layer film and the release film 05; and a release film 05.

The transparent substrate of the first layer film may be Polyethylene terephthalate (PET) (hereinafter referred to as PET) or triacetate (TAC), and is preferably made of PET. The optical film structure of the present invention, wherein the first surface of the transparent substrate 02 of the first film is coated with the anti-reflection layer 〇1, and the second surface is coated with the near-infrared absorbing or shielding layer 〇6'. It is customary for optical film structures having the same optical properties to have fewer substrates, such as the number and thickness of PET films, and not only do not affect other optical properties, but also increase the transmittance of 1-2%; secondly, the second film The coating with the color purity enhancement (Neon-cut) function is mixed and coated with the PSA adhesive to have the color correction function and the adhesiveness required for the bonding. [Embodiment] The technical contents and implementation means of the present invention will be described with reference to the accompanying drawings. Figure 1 is a schematic view of the structure of a conventional optical film. After the first surface of the PET film is coated with the anti-reflection layer 〇1, the second surface is bonded to the PET film having other optical properties coating with PSA adhesive. If more optical properties are required, M289203 is repeatedly subjected to PET film. The coating is adhered to the PSA adhesive, and finally the optical film attached to the release film 5 is attached to the glass substrate. The more optical properties required, the greater the number of PET films that need to be bonded, and the more procedures for applying different coating materials and PSA gums.

Fig. 2 is a schematic diagram of the optical structure of the present invention; Fig. 3 is a flow chart for the fabrication of the optical film structure. After the first surface of the PET film is coated with the anti-reflection layer 0 1 , the first surface thereof is directly coated with the near-infrared absorption or shielding layer 06, and is composed of a color correction layer (Neon-cut) and an adhesive (PS). The coating layer 07 is adhered to the release film 5 and the optical film of the assembly is attached to the glass substrate. According to the conventional optical film structure of Fig. 1, the optical film of the present invention has an antireflection layer 〇1, a PET film 02, a near infrared absorbing or masking layer 06, a color correction layer 07, and a release film, respectively, from the outside to the inside. 05 and other optical film structures, comparing the film thickness of the conventional optical film structure with the structure of the present optical film as shown in Table 1, since the optical film structure of the present invention is smaller than the conventional optical film structure, several pieces of PET film, each piece is about 50~ 7 5 μπι, the optical film thickness of the assembly is about 1 6 3~1 8 2 μιτι, which is significantly lower than the thickness of the optical film structure of the conventional optical film structure 3 6 8~4 3 7 μηι. In addition, in the fabrication of the optical film structure of the present invention, the process of bonding the P S tannin adhesive is less than that of the conventional optical film structure. Since the conventional optical film structure has a large film thickness and the fabrication process is complicated, the optical properties of the optical film of the assembly are not as good as the optical film structure of the present invention. Table 2 shows the optical properties of the conventional optical film currently sold and the optical film of the present invention, including transmittance (T%), brightness (luminance, L), haze, etc. The optical properties of other M289203 are not affected, and the light transmittance of 1-2% can be improved, which proves that the performance of the optical film is excellent. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of protection of the creation shall be subject to the definition of the scope of the patent application attached.

M289203

Table 1 Comparison of the film thickness of the conventional optical film structure and the optical film structure of the present invention. The optical film structure is conventionally known. The thickness of the optical film structure (# m) The thickness of the optical film structure of the present invention (// m ) Layer 01 (including PET film) 100~110 100~110 Anti-reflective layer 01 PS adhesive 25 ~ 30 PET film infrared shielding layer (including PET film) 100~110 Infrared shielding layer PS bonding adhesive 25 ~ 30 color correction layer.. .....- 5~10 25 ~ 30 Color correction layer PET film 50 ~ 75 PS adhesive 25 ~ 30 PS adhesive release film 0 5 38 ~ 42 38 ~ 42 Release film 0 5 Electromagnetic radiation protection film glass The optical properties of the conventional optical film and the optical film of the substrate are compared. T% L ab △a △b △Eab A manufacturer optical film #1 47.21 49.63 2.88 -10.78 '•mm 涵子 i 47.923⁄4 scales c厂家光学膜#3 43.94 47.57 2.91 -9.58 0.16 1.09 2.659 ,99? _ —pain;;-10.52\; Prayer; The finished product 46.07 49.41 2.77 -11.08 0.06 0.16 0.8474 -10- M289203 [Simple description] Figure 1 is a schematic view of the structure of a conventional optical film. Fig. 2 is a schematic view showing the structure of the optical film of the present invention. Figure 3 shows the fabrication process of the optical film structure. [Main component symbol description] 0 1 Anti-reflection layer 02 Transparent substrate 03 PSA glue

04 Other optical material layers other than the anti-reflective layer 0 5 Release film 0 6 Near-infrared absorbing layer 07 Coating layer composed of color correction layer material and adhesive

-11-

Claims (1)

M289203 ·, ιΓΜΐΜΙ|ΐιΙ>ΐιΐ AS^I (ru iHj No. 942 1 8843 "Light of the plasma display panel "Study ^«^(rτΐ3⁄4 case (amended on January 18, 2006) IX. Patent application scope: 1 An optical film structure having a plurality of optical properties including at least anti-reflection (AR), color purity enhancement (Neon-cut), near-infrared (NIR) barrier or absorption, and panel protection, characterized by optical a coating having a plurality of optical properties on a transparent substrate surface of the film structure and a thickness of the optical film structure having a thinned thickness. 2. The optical film structure of claim 1, wherein the plurality of optical properties are antireflective coating In addition to other materials that are resistant to glare, antifouling, antistatic, ultraviolet, brightening, electromagnetic radiation, or optical clarity, the layer structure is as follows: An optical film structure in which additional optical properties may be added separately to the antireflection layer or to a hybrid application. 4 · An optical film junction having complex optical properties The method at least includes: a first layer film coated on the first surface of the transparent substrate with an anti-reflection layer and a second surface coated with a near-infrared absorption or shielding layer; and a second film comprising a color correction layer material and a coating layer composed of an adhesive as a second surface of the first film and a release film; a release film. 5. The optical film structure of claim 1 or 4, wherein the transparent The substrate may be made of polyethylene terephthalate (PET) or triacetate (TAC). One (2 M289203) 1st