CN1329748C - Reflecting film - Google Patents
Reflecting film Download PDFInfo
- Publication number
- CN1329748C CN1329748C CNB2003101224073A CN200310122407A CN1329748C CN 1329748 C CN1329748 C CN 1329748C CN B2003101224073 A CNB2003101224073 A CN B2003101224073A CN 200310122407 A CN200310122407 A CN 200310122407A CN 1329748 C CN1329748 C CN 1329748C
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- CN
- China
- Prior art keywords
- reflectance coating
- vibrin
- resin
- lcd
- brightness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Laminated Bodies (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to a reflection film comprising upper base material made from high molecular resin, lower base material made from high molecular resin, and a middle layer composed of polyester resin and barium sulfate. The surface of at least one base material is coated with ultraviolet radiation absorption agent and barium sulfate.
Description
Technical field
The present invention is used for the backlight liquid crystal display reflecting plate about a kind of reflectance coating, to reach the effect that strengthens LCD brightness.
Background technology
LCD (Liquid Crystal Display, LCD) imaging, at first utilize a backlight (back light source) to project light source, these light sources can be earlier through a Polarizer, and then through liquid crystal molecule, this moment, the arrangement mode of liquid crystal molecule can change the angle of the light that penetrates liquid crystal, and these light are again through the colored filter (color filter) and another piece Polarizer in the place ahead then.Therefore,, just can control the light intensity and the color of last appearance, and and then change the color combination that the different depths as long as change to stimulate the magnitude of voltage of liquid crystal molecule.
The brightness of LCD is except the transmittance that depends on liquid crystal cell and colored filter, and another prior factor is the brightness of backlight.Therefore, if wish to improve the LCD surface brightness, should set about from improving back light source brightness.
With significant components and the brightness source of backlight, extremely important for improving liquid crystal display brightness as the LCD Presentation Function.Before the present invention, industry has been attempted multiple mode and has been removed to improve the LCD display brightness from the backlight aspect, for example, adjusts from lamp source side face, can be by increasing fluorescent tube quantity and/or increasing the lamp source power to improve display brightness, just can face volume and reach shortcomings such as power consumption is many greatly.In addition, can also improve, yet can face the difficulty of light guide plate material design aspect from the light guide plate aspect.
A kind of reflectance coating of coating can improve light emitted efficient behind backlight, increases emission brightness.Therefore, reflectance coating is a significant components in the LCD, and the height of its reflectivity can influence the brightness effects of demonstration.
The employed reflectance coating of industry is with polyethylene terephthalate (Polyethyleneterephthalate at present, PET) be primary raw material, but because the light launched of backlight contains ultraviolet ray (UV), easily cause the PET yellow, cause reflecting effect to weaken and the aberration problem of LCD.
This case the inventor find through broad research, add ultraviolet light absorber and barium sulphate on vibrin reflectance coating surface, can make most of backlight in the surface reflection of PET reflectance coating, therefore can successfully intercept UV, and can make reflectance coating tool permanance, also can reduce the thickness of reflectance coating, can effectively overcome above-mentioned shortcoming.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of reflectance coating that is used for Backlight For Liquid Crystal Display Panels, it comprises with the macromolecule resin is the levels base material, by the middle layer that vibrin and barium sulphate constitute, wherein have at least one deck substrate surface to be coated with ultraviolet light absorber and barium sulphate.Preferably apply this ultraviolet light absorber and barium sulphate in the above-mentioned reflectance coating at the upper strata substrate surface.The macromolecule resin that adopts is preferably vibrin (polyester resin), polycarbonate resin (polycarbonate resin) or polyurethane resin (polyurethane resin), more preferably macromolecule resin is a vibrin, most preferably is polyethylene terephthalate (PET) or terephthaldehyde's acetoacetic ester multipolymer (co-PET) or its potpourri.
Another object of the present invention has been to provide a kind of method that strengthens LCD brightness, and it comprises the reflectance coating described in the claim 1 is used for LCD as the backlight reflectance coating.
Embodiment
The invention relates to a kind of reflectance coating that is used for Backlight For Liquid Crystal Display Panels, it comprises with the macromolecule resin is the levels base material, and, wherein have at least one deck substrate surface to be coated with ultraviolet light absorber and barium sulphate by the middle layer that vibrin and barium sulphate constituted.
The employed macromolecule resin of reflectance coating of the present invention can be vibrin (polyester resin), polycarbonate resin (polycarbonate resin) or polyurethane resin (polyurethaneresin) or its potpourri.According to a specific embodiment of the present invention, this macromolecule resin is a vibrin, and it can be to be familiar with known foam type of this operator or non-foam type polymkeric substance, for example is PET or terephthaldehyde's acetoacetic ester multipolymer (co-PET) or its potpourri.
Can be used for applying the ultraviolet light absorber on reflectance coating of the present invention surface, for the personnel that have the knack of this technology known.
The present invention also provides a kind of method that strengthens LCD brightness in addition, and it comprises above-mentioned reflectance coating is used in the LCD, as the backlight reflectance coating, to reach the effect that strengthens LCD brightness.
Claims (5)
1. reflectance coating, it comprises the levels base material of macromolecule resin and the middle layer that is made of vibrin and barium sulphate, wherein has at least a substrate surface to be coated with ultraviolet light absorber and barium sulphate.
2. according to the reflectance coating described in the claim 1, it is characterized by the upper strata substrate surface and apply this ultraviolet light absorber and barium sulphate.
3. according to the reflectance coating described in claim 1 or 2, it is characterized by this macromolecule resin is vibrin, polycarbonate resin or polyurethane resin.
4. according to the reflectance coating described in the claim 3, it is characterized by this macromolecule resin is vibrin.
5. according to the reflectance coating described in the claim 4, it is characterized by this vibrin is polyethylene terephthalate or terephthaldehyde's acetoacetic ester multipolymer or its potpourri.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101224073A CN1329748C (en) | 2003-12-22 | 2003-12-22 | Reflecting film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101224073A CN1329748C (en) | 2003-12-22 | 2003-12-22 | Reflecting film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1632656A CN1632656A (en) | 2005-06-29 |
| CN1329748C true CN1329748C (en) | 2007-08-01 |
Family
ID=34844489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101224073A Expired - Fee Related CN1329748C (en) | 2003-12-22 | 2003-12-22 | Reflecting film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1329748C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207579A (en) * | 2011-06-16 | 2011-10-05 | 苏州茂立光电科技有限公司 | Two-way optical guiding module, double-face display and production method of two-way optical guiding module |
| CN103881607A (en) * | 2014-04-03 | 2014-06-25 | 苏州华周胶带有限公司 | Masking tape without defective gum |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3957675A (en) * | 1973-09-28 | 1976-05-18 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Ultraviolet light reflective coating |
| US4429004A (en) * | 1980-06-26 | 1984-01-31 | Ciba-Geigy Corporation | Light-reflecting body |
| JPH0615774A (en) * | 1992-07-01 | 1994-01-25 | Mitsui Toatsu Chem Inc | Light reflecting sheet |
| JPH0615775A (en) * | 1992-07-01 | 1994-01-25 | Mitsui Toatsu Chem Inc | Light reflecting sheet |
| US5672409A (en) * | 1991-01-22 | 1997-09-30 | Toray Industries, Inc. | Polyester film reflector for a surface light source |
| US5710856A (en) * | 1995-01-27 | 1998-01-20 | Mitsui Toatsu Chemicals, Inc. | Light reflective sheet and light reflector using it |
| JP2002040214A (en) * | 2000-07-25 | 2002-02-06 | Toray Ind Inc | White film for surface light source reflection plate |
| EP1302788A1 (en) * | 2000-07-12 | 2003-04-16 | Toray Industries, Inc. | White film for surface light source reflecting members |
-
2003
- 2003-12-22 CN CNB2003101224073A patent/CN1329748C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3957675A (en) * | 1973-09-28 | 1976-05-18 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Ultraviolet light reflective coating |
| US4429004A (en) * | 1980-06-26 | 1984-01-31 | Ciba-Geigy Corporation | Light-reflecting body |
| US5672409A (en) * | 1991-01-22 | 1997-09-30 | Toray Industries, Inc. | Polyester film reflector for a surface light source |
| JPH0615774A (en) * | 1992-07-01 | 1994-01-25 | Mitsui Toatsu Chem Inc | Light reflecting sheet |
| JPH0615775A (en) * | 1992-07-01 | 1994-01-25 | Mitsui Toatsu Chem Inc | Light reflecting sheet |
| US5710856A (en) * | 1995-01-27 | 1998-01-20 | Mitsui Toatsu Chemicals, Inc. | Light reflective sheet and light reflector using it |
| EP1302788A1 (en) * | 2000-07-12 | 2003-04-16 | Toray Industries, Inc. | White film for surface light source reflecting members |
| JP2002040214A (en) * | 2000-07-25 | 2002-02-06 | Toray Ind Inc | White film for surface light source reflection plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1632656A (en) | 2005-06-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Kaohsiung City, Taiwan, China Patentee after: Changxing material industry limited-liability company Address before: Kaohsiung City, Taiwan, China Patentee before: Changxing Chemical Industrial Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |