CN101886789A - Method for producing backlight source device of liquid crystal display screen - Google Patents
Method for producing backlight source device of liquid crystal display screen Download PDFInfo
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- CN101886789A CN101886789A CN 201010219671 CN201010219671A CN101886789A CN 101886789 A CN101886789 A CN 101886789A CN 201010219671 CN201010219671 CN 201010219671 CN 201010219671 A CN201010219671 A CN 201010219671A CN 101886789 A CN101886789 A CN 101886789A
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Abstract
The invention relates to a backlight source device production method, which comprises the following steps of: 1, preparing crude particles before injection molding, and adding 10 to 50 weight parts of inorganic substance particles with the particle size of 30 nanometers to 3.0 microns into each 100 weight parts of ordinary polycarbonate plastic particles for mixing, wherein the inorganic substance particle is any one of barium sulfate particle, titanium dioxide particle and zirconium dioxide particle, or is the mixture of two or three of the barium sulfate particle, the titanium dioxide particle and the zirconium dioxide particle in any weight ratio; and 2, injection-molding the to-be-injected particles mixed in the first step into a backlight source board material in a liquid crystal display screen by using an injection mould. Therefore, the backlight source device production method applied to liquid crystal display equipment has the advantages of the need of only one set of injection mould, low cost and simple and firm structure.
Description
Technical field
The present invention relates to the backlight arrangement technical field in the liquid crystal display, refer in particular to a kind of needs and open a cover injection mold, low, the simple in structure firm production method that is applied to the backlight arrangement in the liquid crystal display of cost.
Background technology
Backlight arrangement in the conventional liquid crystal display apparatus.Structure as shown in Figure 1, series wherein backlight is made up of back chase, center and reflector plate, back chase is center fixedly, center fixation reflex sheet, back chase, center, reflector plate are fixed-type by three parts altogether.Traditional structure has the following disadvantages: the back chase of one, this structure is by punch forming, and center relies on many molds by injection moulding, the development cost costliness; Two, the product assembling is slow, consuming time; How improving the backlight arrangement structure overcomes above defective and becomes technical problem to be solved is arranged.
Summary of the invention
Purpose of the present invention is exactly that a kind of needs that provide at the deficiencies in the prior art part are opened a cover injection mold, low, the simple in structure firm production method that is applied to the backlight arrangement in the liquid crystal display of cost.
For achieving the above object, technical scheme of the present invention may further comprise the steps:
The first step, feed particles before the configuration injection moulding, mix at the particles of inorganic material between 30 nanometers to 3.0 micron by adding 10 parts to 50 parts weight ratio particle diameters in per 100 parts of weight ratio polycarbonate common plastics particles, described particles of inorganic material be in barium sulfate particle, titanium dioxide granule, the zirconium dioxide particle any one or any two kinds mix by any weight ratio or three kinds mix by any weight ratio;
In second step, the injection moulding particle that the first step is mixed is injection molded into backlight sheet material in the LCDs by injection mould.
Described particles of inorganic material is made of in barium sulfate particle, titanium dioxide granule, the zirconium dioxide particle any one.
Described particles of inorganic material mixes by any weight ratio by any two kinds in barium sulfate particle, titanium dioxide granule, the zirconium dioxide particle.
Described particles of inorganic material mixes by any weight ratio by three kinds in barium sulfate particle, titanium dioxide granule, the zirconium dioxide particle.
Described LCDs is the LCDs of LED backlight or the LCDs of cold cathode fluorescent tube CCFL backlight.
After adopting above-mentioned steps, the present invention only need once the cover injection mould do product original three after chase, center, reflector plate integrate, the cost of raw material reduces by 30%; Simultaneously, when adopting backlight arrangement of the present invention that LCDs is installed, can save 30% built-up time again, assembly cost also reduces by 30%; Backlight that the inventive method is produced reflection plastic material when wavelength 560nm reflectivity up to more than 98%.The scope of quoting of the present invention comprises from small size mobile phone backlight or MP3 and MP4 backlight to 1.1 inch to 65 inches LCD TVs and can use with interior backlight.As from the foregoing, the present invention opens a cover injection mold, low, the simple in structure firm production method that is applied to the backlight arrangement in the liquid crystal display of cost for a kind of needs.
Description of drawings
Fig. 1 is a traditional backlight source apparatus structural upright decomposing schematic representation.
The backlight arrangement structural representation that Fig. 2 makes for the inventive method.
The specific embodiment
Now with reference to the accompanying drawings production method of the present invention is described in further detail:
Fig. 1 is a traditional backlight source apparatus structural upright decomposing schematic representation, and it is made up of center a, reflector plate b, back chase c;
Backlight arrangement d as Fig. 2 production method of the present invention is made is integrated traditional back chase, center, reflector plate three parts three.
Embodiment one: by weight, get 100 parts of polycarbonate common plastics particles, add the barium sulfate particle of 0.5 micron of 45 parts of particle diameter, the reflectivity of the source plate backlight that injection moulding is come out after mixing is more than 97% when wavelength 560 nanometers;
Embodiment two: by weight, get 100 parts of polycarbonate common plastics particles, add the titanium dioxide granule of 0.8 micron of 30 parts of particle diameter, the reflectivity of the source plate backlight that injection moulding is come out after mixing is more than 96% when wavelength 560 nanometers;
Embodiment three: by weight, get 100 parts of polycarbonate common plastics particles, add the zirconium dioxide particle of 1.0 microns of 25 parts of particle diameters, the reflectivity of the source plate backlight that injection moulding is come out after mixing is more than 96.5% when wavelength 560 nanometers;
Embodiment four: by weight, get 100 parts of polycarbonate common plastics particles, the barium sulfate particle that adds 0.5 micron of 15 parts of particle diameter, the titanium dioxide granule that adds 0.8 micron of 10 parts of particle diameter, the zirconium dioxide particle that adds 1.0 microns of 15 parts of particle diameters, the reflectivity of the source plate backlight that injection moulding is come out after mixing is more than 98% when wavelength 560 nanometers;
Embodiment five: by weight, get 100 parts of polycarbonate common plastics particles, the barium sulfate particle that adds 0.5 micron of 20 parts of particle diameter adds the zirconium dioxide particle of 0.8 micron of 15 parts of particle diameter, and the reflectivity that mixes the source plate backlight that the back injection moulding comes out is more than 97% when wavelength 560 nanometers.
The present invention only need once the cover injection mould do product original three after chase, center, reflector plate integrate, the cost of raw material reduces by 30%; Simultaneously, when adopting backlight arrangement of the present invention that LCDs is installed, can save 30% built-up time again, assembly cost also reduces by 30%; Backlight that the inventive method is produced reflection plastic material when wavelength 560nm reflectivity up to more than 98%.The scope of quoting of the present invention comprises from small size mobile phone backlight or MP3 and MP4 backlight to 1.1 inch to 65 inches LCD TVs and can use with interior backlight.
Claims (5)
1. the production method of the backlight arrangement of a LCDs, it is characterized in that: it adopts following steps:
The first step, feed particles before the configuration injection moulding, mix at the particles of inorganic material between 30 nanometers to 3.0 micron by adding 10 parts to 50 parts weight ratio particle diameters in per 100 parts of weight ratio polycarbonate common plastics particles, described particles of inorganic material be in barium sulfate particle, titanium dioxide granule, the zirconium dioxide particle any one or any two kinds mix by any weight ratio or three kinds mix by any weight ratio;
In second step, the injection moulding particle that the first step is mixed is injection molded into backlight sheet material in the LCDs by injection mould.
2. the production method of the backlight arrangement of a kind of LCDs according to claim 1 is characterized in that: described particles of inorganic material is made of in barium sulfate particle, titanium dioxide granule, the zirconium dioxide particle any one.
3. the production method of the backlight arrangement of a kind of LCDs according to claim 1 is characterized in that: described particles of inorganic material mixes by any weight ratio by any two kinds in barium sulfate particle, titanium dioxide granule, the zirconium dioxide particle.
4. the production method of the backlight arrangement of a kind of LCDs according to claim 1, it is characterized in that: described particles of inorganic material mixes by any weight ratio by three kinds in barium sulfate particle, titanium dioxide granule, the zirconium dioxide particle.
5. according to the production method of the backlight arrangement of each described a kind of LCDs of claim 1-4, it is characterized in that: described LCDs is the LCDs of LED backlight or the LCDs of cold cathode fluorescent tube CCFL backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010219671 CN101886789A (en) | 2010-07-07 | 2010-07-07 | Method for producing backlight source device of liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010219671 CN101886789A (en) | 2010-07-07 | 2010-07-07 | Method for producing backlight source device of liquid crystal display screen |
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| CN101886789A true CN101886789A (en) | 2010-11-17 |
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| CN 201010219671 Pending CN101886789A (en) | 2010-07-07 | 2010-07-07 | Method for producing backlight source device of liquid crystal display screen |
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Cited By (3)
| 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 |
| CN102913853A (en) * | 2012-10-08 | 2013-02-06 | 上海冠旗电子新材料股份有限公司 | Backlight reflection sheet for liquid crystal |
| CN104672943A (en) * | 2015-02-15 | 2015-06-03 | 深圳市德仓科技有限公司 | Injection molding composition for rubber and iron integrated frame, rubber and iron integrated frame and manufacture method of rubber and iron integrated frame |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101248309A (en) * | 2005-08-24 | 2008-08-20 | 出光兴产株式会社 | Housing structure for lighting device, method for manufacturing the same, and backlight lighting device using the same |
| CN201273973Y (en) * | 2008-09-18 | 2009-07-15 | 上海纽发利商贸有限公司 | LCD module of liquid crystal display |
-
2010
- 2010-07-07 CN CN 201010219671 patent/CN101886789A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101248309A (en) * | 2005-08-24 | 2008-08-20 | 出光兴产株式会社 | Housing structure for lighting device, method for manufacturing the same, and backlight lighting device using the same |
| CN201273973Y (en) * | 2008-09-18 | 2009-07-15 | 上海纽发利商贸有限公司 | LCD module of liquid crystal display |
Cited By (3)
| 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 |
| CN102913853A (en) * | 2012-10-08 | 2013-02-06 | 上海冠旗电子新材料股份有限公司 | Backlight reflection sheet for liquid crystal |
| CN104672943A (en) * | 2015-02-15 | 2015-06-03 | 深圳市德仓科技有限公司 | Injection molding composition for rubber and iron integrated frame, rubber and iron integrated frame and manufacture method of rubber and iron integrated frame |
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Owner name: DONGGUAN XINJU OPTICAL-ELECTROCO TECHNOLOGY CO., L Free format text: FORMER OWNER: CAI WENZHEN Effective date: 20130220 |
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Effective date of registration: 20130220 Address after: Tangxia Town, Guangdong city of Dongguan province 523000 Qing Lake Phoenix Road No. 98 Applicant after: Dongguan Xinju Optical-Electrical Technology Co., Ltd. Address before: Tangxia Town, Guangdong city of Dongguan province 523000 Qing Lake Phoenix Road No. 98 Dongguan xinju Optoelectronics Technology Co. Applicant before: Cai Wenzhen |
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Application publication date: 20101117 |