TWI260604B - Photo drawing disc - Google Patents

Abstract

A photo drawing disc includes a substrate, a recording stack layer, a protective layer and a photo drawing stack layer. The substrate has a first surface and a second surface, which is opposite to the first surface. The recording stack layer is disposed on the first surface. The protective layer is disposed on the recording stack layer. The photo drawing stack layer is disposed on the second surface or on the protective layer. The photo drawing stack layer includes a thermal dissipating layer, a photo drawing layer and a color enhancement layer. The thermal dissipating layer is disposed on the second surface or on the protective layer. The photo drawing layer is disposed on the thermal dissipating layer. The color enhancement layer is disposed on the photo drawing layer, wherein the thickness of the color enhancement layer is between 1 nm and 150 nm.

Description

1260604 IX. Description of the Invention: [Technical Field] The present invention relates to an optical information storage medium, and more particularly to a light drawing disk. [Prior Art] In general, after a user writes a digital audio and video material to a light information storage medium, the content of the information storage medium is usually marked on the surface of the optical information storage medium Φ by handwriting or pasting the label. In addition, in terms of the production quality of optical information storage media, in addition to focusing on the production quality of optical information storage media, ink printing or other means are used to design graphic characters on the surface of optical information storage media to attract users. Look, increase the desire to buy. However, the manner in which the user uses the handwritten content on the surface of the light information storage medium is not only troublesome, but also easily caused by the user's handwriting, resulting in an unsightly light information storage medium. Moreover, by means of the labeling method, when the optical information storage medium enters the operation of the optical disc drive, the adhesive of the label is easily heated and melted, which may cause damage to the optical disc drive. In addition, the light information storage media produced by the manufacturers with various patterns and characters, in order to take into account the production cost, usually produce the same pattern characters in large quantities, and indeed lose the desire to purchase for users who want to be different. . In addition, both the user and the manufacturer are marking the pattern on the surface of the light information storage medium. It is inevitable that the pattern will fade and fall off due to external factors, making the label unclear. The effect is even greater. 1260604 SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a light drawing disc having a function of allowing a user to draw a pattern by himself, and by using different materials and different thicknesses of color-increasing layers, Light drawing discs have different color variations. In order to achieve the above object, an optical drawing disk according to the present invention comprises a substrate, a recording layer, a protective layer, and a light mapping layer. The substrate has a first surface and a second surface disposed opposite to the first surface, the recording layer is disposed on the first surface, the protective layer is disposed on the recording layer, and the light mapping layer is disposed on the second surface. Or on the protective layer. The light-drawing layer comprises a heat-dissipating layer, a layer of the layer and a color-increasing layer, the heat-dissipating layer is disposed on the second surface or the protective layer, the drawing layer is disposed on the heat-dissipating layer, and the color-increasing layer is disposed on the drawing layer, wherein The thickness of the color enhancement layer is between 1 nm and 150 nm. In summary, in the optical drawing disc of the present invention, when the laser light is drawn into the light drawing layer, the drawing layer is cracked and generated on the optical drawing disc; the pattern changes. In this way, the user can draw the self-designed pattern text - word on the light drawing disc. Compared with the conventional structure, the optical drawing disk of the present invention is less likely to be scratched or stained due to scratching or contamination. Moreover, due to the difference in material and thickness of the color-increasing layer, the light-drawing discs can have different colors and can be selected by the user, which is indeed in line with the needs of the consumer and is advantageous for sales. In addition, the optical drawing disc of the present invention can be applied to a compact disc (CD), a digital video disc (DVD), a Blu-ray disc (BD), and a high-density digital video disc (HD-DVD), and has a good production.

Claims (1)

1260604 X. Patent application scope: a light drawing disc comprising: - a substrate having a first surface and a first surface disposed opposite to the first surface; a recording layer disposed on the first surface; a protective layer is disposed on the recording layer; and a light-stack layer is disposed on the second surface or the protective layer, and the light mapping layer comprises: a heat dissipation layer, a drawing layer and a color enhancement layer, The heat dissipation layer is disposed on the second surface or the protective layer, the drawing layer is disposed on the heat dissipation layer, and the color enhancement layer is disposed on the enamel layer, wherein the color enhancement layer has a thickness between 1 nm and 150 nm. . The optical drawing disc according to the first aspect of the invention, wherein the material of the substrate is an optical grade polymer material. The optical drawing disc according to claim 2, wherein the optical grade polymer material is a propylene-based series, a carbonate series, a benzene-ethyl series, an olefin series or a polydiethylene glycol dialkyl carbonate. series. The optical drawing disc of claim 1, wherein the protective layer is a transparent substrate, and the transparent substrate has a plurality of groove tracks, each of which has a depth between 20 nm and 200 nm. . 17 1260604 & U # j The optical drawing disc of the item i, wherein the material of the layer 4 is an optical polymer material or a non-optical high molecular material. ^Zhongqing Patent _ the disc of the level described in Item 5, wherein the optical and molecular material is a propylene-based series, a carbonate series, a styrene series, an olefin series or a polydiethylene glycol bis-alkyl carbonate The ester series, the _ non-optical polymer material is polyethylene or polypropylene. 7. The optical drawing disc of claim 1, wherein the thickness of the heat dissipation layer is 65 nm or more. 8. The optical drawing disc of claim 7, wherein the material of the heat dissipation layer is pure aluminum, pure copper, pure silver, aluminum alloy, copper alloy, silver alloy or an alloy of the above materials. 9. The optical drawing disc of claim 2, wherein the thickness of the drawing layer is between 30 nm and 280 nm. 10. The optical drawing disc of claim 1, wherein the material of the drawing layer is a dye or pigment having a chromophoric functional group. 11. The optical drawing disc of claim 10, wherein the chromogenic functional group is a carbonyl group, an isocyano group, an azo group, a nitro group, an 18 1260604 azo group or a thiocarbon group or a sub Nitro. 12. The optical drawing disc of claim 10, wherein the drawing layer further comprises a color-sensitive functional group. 13. The optical drawing disc of claim 12, wherein the coercive functional group is an amino group, a hydroxyl group, a carboxyl group or a sulfonate group. W. The optical drawing disc of claim i, wherein the color of the optical drawing disc changes with different reflectance. 15. The optical drawing disc of claim 14, wherein the reflectivity of the optical drawing disc varies with the thickness of the color enhancement layer. 16. The optical drawing disc of claim 14, wherein the reflectivity of the optical drawing disc varies with the material of the color-increasing layer. 17. The optical drawing disc of claim 1, wherein the refractive index of the color layer is between 1.47 and 2.5. / 曰 18. The optical drawing disc of claim 1, wherein the discoloration coefficient of the enamel layer approaches zero. ~曰 The optical drawing disc of claim 1, wherein the coloring layer is made of a cerium-containing compound, an aluminide-containing compound, zinc sulfide-cerium oxide, antimony pentoxide, and antimony trioxide. Aluminum, zinc oxide-metal oxide, cerium oxide, cerium nitride, cerium carbide or cerium oxynitride.