CN101890818A - Method for producing reflector plate in backlight device of liquid crystal display - Google Patents
Method for producing reflector plate in backlight device of liquid crystal display Download PDFInfo
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- CN101890818A CN101890818A CN 201010248128 CN201010248128A CN101890818A CN 101890818 A CN101890818 A CN 101890818A CN 201010248128 CN201010248128 CN 201010248128 CN 201010248128 A CN201010248128 A CN 201010248128A CN 101890818 A CN101890818 A CN 101890818A
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Abstract
The invention particularly relates to a method for producing a reflector plate in a backlight device of a liquid crystal display by only using one casting machine or three-roller calendering extruder. The raw material of the reflector plate is prepared by mixing polypropylene particles or polyester, and inorganic substances such as barium sulfate, titanium dioxide and zirconium dioxide as required; and the raw material is subjected to extrusion molding after being dried and is naturally cooled to form the reflector plate. The steps are performed to produce corresponding emission plates by only using one casting machine or three-roller calendering extruder. Therefore, the production efficiency can be improved by 30 percent and the production cost is also reduced by 30 percent; and more importantly, the investment in complex and expensive equipment originally is reduced to the minimum, so that the equipment investment becomes inexpensive, and the production becomes simpler.
Description
Technical field
Patent of the present invention relates to liquid crystal display reflection technology field, and only refering in particular to needs with a curtain coating or the three-roll press-polishing extruder production method with regard to reflector plate in the producible liquid crystal display back lighting device.
Background technology
The production technology of the reflector plate in the conventional liquid crystal display apparatus and device are shown in Fig. 1-2, this production equipment is by successively along the general traditional reflective sheet extrusion mechanism 10` and the general traditional two roller shaping mechanism 20` that connect, become the haulage gear 60` and the rolling-up mechanism 70` of the reflector plate coiled material of specification along being connected with the 30` of longitudinal stretching mechanism, the 40` of cross directional stretch mechanism, the 50` of corona mechanism, splitting winding that some live-rollers form successively at the output of general traditional two roller shaping mechanism 20`, generation equipment is complicated and depend on the high price import.
When adopting the said equipment to produce reflector plate with traditional emission tablet raw material body, at first extrude operation 11`, need to carry out calendering procedure 12`, longitudinal stretching 13`, cross directional stretch 14`, corona operation 15`, traction operation 16`, winding process 17` then successively, the reflector plate production technology is also extremely complicated, is difficult for grasping.How changing the component of reflector plate raw material and production technology and process units reduces its production cost to become the problem that remains to be solved.
Summary of the invention
Purpose of the present invention is exactly two kinds of batching modes of employing of providing at the deficiencies in the prior art part, only needs with a curtain coating or the three-roll press-polishing extruder production method with regard to reflector plate in producible, the simple liquid crystal display back lighting device of processing step.
For achieving the above object, the production method of reflector plate in the liquid crystal display back lighting device of the present invention adopts first kind of batching mode, and it adopts following steps as follows successively:
The first step is that reflector plate is raw-material synthetic, be called for short at 100 parts of weight ratio polypropylene and add 10 parts to 60 parts weight ratio particle diameters in the PP common plastics particles and behind the particles of inorganic material between 30 nanometers to 3.0 micron, be mixed into the reflector plate raw material, described inorganic matter be in barium sulfate, titanium dioxide, the zirconium dioxide any one or any two kinds mix by arbitrary proportion or three kinds mix by arbitrary proportion;
Second step handled for the drying of emission tablet raw material, the good reflector plate raw material of first step compounding is put into the drying of carrying out in the drying machine more than 30 minutes handle under 50-180 degree temperature;
The 3rd step is for forming processes technology, and dried emission tablet raw material by general reflector plate production equipment, is promptly carried out extrusion molding, splitting winding becomes the reflector plate coiled material of specification after the cooling naturally on curtain coating or the three-roll press-polishing extrusion equipment.
For achieving the above object, the production method of reflector plate in the liquid crystal display back lighting device of the present invention adopts second kind of batching mode, and it adopts following steps as follows successively:
The first step is that reflector plate is raw-material synthetic, be called for short at 100 parts of weight ratio polyester and add 10 parts to 60 parts weight ratio particle diameters in the PET common plastics particles and behind the particles of inorganic material between 30 nanometers to 3.0 micron, be mixed into the reflector plate raw material, described inorganic matter be in barium sulfate, titanium dioxide, the zirconium dioxide any one or any two kinds mix by arbitrary proportion or three kinds mix by arbitrary proportion;
Second step handled for the drying of emission tablet raw material, the good reflector plate raw material of first step compounding is put into the drying of carrying out in the drying machine more than 30 minutes handle under 50-180 degree temperature;
The 3rd step is for forming processes technology, and dried emission tablet raw material by general reflector plate production equipment, is promptly carried out extrusion molding, splitting winding becomes the reflector plate coiled material of specification after the cooling naturally on curtain coating or the three-roll press-polishing extruding production line.
Described curtain coating or three-roll press-polishing extruding production line include: successively along general traditional reflective sheet extrusion mechanism that connects and general traditional three-roll formation mechanism, at the output of general traditional three-roll formation mechanism successively along the haulage gear and the rolling-up mechanism that are connected with slow cooling mechanism that some live-rollers form, reflector plate coiled material that splitting winding becomes specification.
After adopting above-mentioned processing step, only need a curtain coating or three-roll press-polishing extruder to be undertaken by above-mentioned steps, omitted traditional step that needs stretching, only need slowly cooling just can produce corresponding emission sheet after the extrusion molding, like this, can improve 30% production efficiency, production cost also reduces by 30%; The more important thing is,, dropped to minimumly, allow cheap that equipment investment becomes, produce become simple complicated high equipment investment originally.And, adopt the mean value of emission sheet wavelength between 450nm to 650nm that production technology of the present invention produces more than 92%, from small size mobile phone backlight such as MP3 and MP4 backlight to from 1.1 inches to 65 inches LCD TV all can use the emission sheet that production technology of the present invention is produced, use very extensive.
Description of drawings
Fig. 1 produces general flow chart for the biaxial tension equipment that adopts traditional handicraft to produce reflector plate.
Fig. 2 produces general flow chart for the stretch processes that adopts traditional handicraft to produce reflector plate.
Fig. 3 produces general flow chart for the curtain coating press polish equipment that the present invention produces reflector plate.
Fig. 4 produces general flow chart for the curtain coating calendaring technology that the present invention produces reflector plate.
The specific embodiment
Now with reference to the accompanying drawings production method of the present invention is described in further detail:
Embodiment one:
The first step, reflector plate is raw-material synthetic, is called for short by 100 parts of weight ratio polypropylene and adds the particles of inorganic material mixing of 30 parts of weight ratio particle diameters in 30 nanometers in the PP common plastics particle, and described inorganic matter is a titanium dioxide;
In second step, the drying of raw material is handled, and the required raw material of the good reflector plate of compounding are dropped into the abundant drying that temperature was carried out 1 hour in the drying machine of 120 degree;
In the 3rd step, the extrusion molding of reflector plate is carried out extrusion molding on the curtain coating of universal design or the three-roll press-polishing extruding production line, and cooling back splitting winding becomes the reflector plate coiled material of specification naturally; Promptly produce reflector plate by extruding operation 11, molding procedure 12, slow cooling operation 13, traction operation 14 and winding process 15 successively.
The emission sheet wavelength that production technology is produced at the reflectivity of 650nm 95%.
Embodiment two:
The first step, reflector plate is raw-material synthetic, is called for short by 100 parts of weight ratio polyester and adds the particles of inorganic material mixing of 30 parts of weight ratio particle diameters in 60 nanometers in the PET common plastics particle, and described inorganic matter is that barium sulfate forms;
In second step, the drying of raw material is handled, and the required raw material of the good reflector plate of compounding are dropped into the abundant drying that temperature was carried out 3 hours in the drying machine of 50 degree;
In the 3rd step, the extrusion molding of reflector plate is carried out extrusion molding on the curtain coating of universal design or the three-roll press-polishing extruding production line, and cooling back splitting winding becomes the reflector plate coiled material of specification naturally; Promptly produce reflector plate by extruding operation 11, molding procedure 12, slow cooling operation 13, traction operation 14 and winding process 15 successively.
The emission sheet wavelength that production technology is produced at the reflectivity of 650nm 92%.
Embodiment three:
The first step, reflector plate is raw-material synthetic, mix by adding the particles of inorganic material of 60 parts of weight ratio particle diameters at 1.0 microns in 100 parts of weight ratio polyester abbreviation PET common plastics particles, described inorganic matter is 20 parts of zirconium dioxides, 20 parts of barium sulfate, 20 parts of mixed forming of titanium dioxide;
In second step, the drying of raw material is handled, and the required raw material of the good reflector plate of compounding are dropped into the abundant drying that temperature was carried out 30 minutes in the drying machine of 180 degree;
In the 3rd step, the extrusion molding of reflector plate is carried out extrusion molding on the curtain coating of universal design or the three-roll press-polishing extruding production line, and cooling back splitting winding becomes the reflector plate coiled material of specification naturally; Promptly produce reflector plate by extruding operation 11, molding procedure 12, slow cooling operation 13, traction operation 14 and winding process 15 successively.
The emission sheet wavelength that production technology is produced at the 450nm reflectivity 98%.
Embodiment four:
The first step, reflector plate is raw-material synthetic, mix at the particles of inorganic material of 30 nanometers by adding 50 parts of weight ratio particle diameters in 100 parts of weight ratio polypropylene abbreviation PP common plastics particles, described inorganic matter is that 25 parts of weight ratio barium sulfate, 25 parts of weight ratio titanium dioxide mix and form;
In second step, the drying of raw material is handled, and the required raw material of the good reflector plate of compounding is dropped into temperature carry out abundant drying more than 2 hours in the drying machines of 100 degree;
In the 3rd step, the extrusion molding of reflector plate is carried out extrusion molding on the curtain coating of universal design or the three-roll press-polishing extruding production line, and cooling back splitting winding becomes the reflector plate coiled material of specification naturally; Promptly produce reflector plate by extruding operation 11, molding procedure 12, slow cooling operation 13, traction operation 14 and winding process 15 successively.
The mean value of emission sheet wavelength between 500nm that production technology is produced is 99%.
Described curtain coating or three-roll press-polishing extruding production line include: successively along general traditional reflective sheet extrusion mechanism 10 that connects and general traditional three-roll formation mechanism 20, at the output of general traditional three-roll formation mechanism 20 successively along the haulage gear 40 and the rolling-up mechanism 50 that are connected with slow cooling mechanism 30 that some live-rollers form, reflector plate coiled material that splitting winding becomes specification.
As from the foregoing, after adopting processing step of the present invention, only need a curtain coating or three-roll press-polishing extruder to be undertaken by above-mentioned steps, omitted traditional step that needs stretching, only need slowly cooling just can produce corresponding emission sheet after the extrusion molding, like this, can improve 30% production efficiency, production cost also reduces by 30%; The more important thing is,, dropped to minimumly, allow cheap that equipment investment becomes, produce become simple complicated high equipment investment originally.And, adopt the mean value of emission sheet wavelength between 450nm to 650nm that production technology of the present invention produces more than 92%, from small size mobile phone backlight such as MP3 and MP4 backlight to from 1.1 inches to 65 inches LCD TV all can use the emission sheet that production technology of the present invention is produced, use very extensive.
Claims (3)
1. the production method of reflector plate in the backlight arrangement of a LCDs, it is characterized in that: it adopts following steps successively:
The first step is that reflector plate is raw-material synthetic, be called for short at 100 parts of weight ratio polypropylene and add 10 parts to 60 parts weight ratio particle diameters in the PP common plastics particles and behind the particles of inorganic material between 30 nanometers to 3.0 micron, be mixed into the reflector plate raw material, described inorganic matter be in barium sulfate, titanium dioxide, the zirconium dioxide any one or any two kinds mix by arbitrary proportion or three kinds mix by arbitrary proportion;
Second step handled for the drying of emission tablet raw material, the good reflector plate raw material of first step compounding is put into the drying of carrying out in the drying machine more than 30 minutes handle under 50-180 degree temperature;
The 3rd step is for forming processes technology, and dried emission tablet raw material by general reflector plate production equipment, is promptly carried out extrusion molding, splitting winding becomes the reflector plate coiled material of specification after the cooling naturally on curtain coating or the three-roll press-polishing extrusion equipment.
2. the production method of reflector plate in the backlight arrangement of a LCDs, it is characterized in that: it adopts following steps successively:
The first step is that reflector plate is raw-material synthetic, be called for short at 100 parts of weight ratio polyester and add 10 parts to 60 parts weight ratio particle diameters in the PET common plastics particles and behind the particles of inorganic material between 30 nanometers to 3.0 micron, be mixed into the reflector plate raw material, described inorganic matter be in barium sulfate, titanium dioxide, the zirconium dioxide any one or any two kinds mix by arbitrary proportion or three kinds mix by arbitrary proportion;
Second step handled for the drying of emission tablet raw material, the good reflector plate raw material of first step compounding is put into the drying of carrying out in the drying machine more than 30 minutes handle under 50-180 degree temperature;
The 3rd step is for forming processes technology, and dried emission tablet raw material by general reflector plate production equipment, is promptly carried out extrusion molding, splitting winding becomes the reflector plate coiled material of specification after the cooling naturally on curtain coating or the three-roll press-polishing extruding production line.
3. the production method of reflector plate in the backlight arrangement of a kind of LCDs according to claim 1 and 2, it is characterized in that: described curtain coating or three-roll press-polishing extruding production line include: successively along general traditional reflective sheet extrusion mechanism that connects and general traditional three-roll formation mechanism, at the output of general traditional three-roll formation mechanism successively along the haulage gear and the rolling-up mechanism that are connected with slow cooling mechanism that some live-rollers form, reflector plate coiled material that splitting winding becomes specification.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010248128 CN101890818A (en) | 2010-08-09 | 2010-08-09 | Method for producing reflector plate in backlight device of liquid crystal display |
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| CN 201010248128 CN101890818A (en) | 2010-08-09 | 2010-08-09 | Method for producing reflector plate in backlight device of liquid crystal display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358042A (en) * | 2011-07-25 | 2012-02-22 | 蔡文珍 | Production method for polycarbonate (PC) reflector plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278008A (en) * | 2005-10-05 | 2008-10-01 | 拜尔材料科学股份公司 | Light-scattering plastic composition with high brightness and use thereof in flat panel displays |
| KR20090002995A (en) * | 2007-07-05 | 2009-01-09 | 주식회사 엘지화학 | Method for manufacturing reflector used in backlight unit of liquid crystal display |
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- 2010-08-09 CN CN 201010248128 patent/CN101890818A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101278008A (en) * | 2005-10-05 | 2008-10-01 | 拜尔材料科学股份公司 | Light-scattering plastic composition with high brightness and use thereof in flat panel displays |
| KR20090002995A (en) * | 2007-07-05 | 2009-01-09 | 주식회사 엘지화학 | Method for manufacturing reflector used in backlight unit of liquid crystal display |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358042A (en) * | 2011-07-25 | 2012-02-22 | 蔡文珍 | Production method for polycarbonate (PC) reflector plate |
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Application publication date: 20101124 |