CN101765344A - Display screen casing, preparation method thereof and electronic product including same - Google Patents
Display screen casing, preparation method thereof and electronic product including same Download PDFInfo
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- CN101765344A CN101765344A CN 200810187605 CN200810187605A CN101765344A CN 101765344 A CN101765344 A CN 101765344A CN 200810187605 CN200810187605 CN 200810187605 CN 200810187605 A CN200810187605 A CN 200810187605A CN 101765344 A CN101765344 A CN 101765344A
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Abstract
The invention relates to a display casing which casing comprises a substrate, a semi-transparent coating layer attached onto the surface on one side of the substrate and a light-tight coating layer attached onto the surface on the other side of the substrate, wherein the semi-transparent coating layer comprises a prime coat, a metal layer, a middle-paint layer and a finish paint layer from inside to outside in sequence, and the light transmittance thereof is less than or equal to 12 percent. Because the light transmittance of the transparent coating layer on the surface on one side of the substrate is controlled to be less than or equal to 12 percent, the display screen can be in a concealed state in case of no background lamp, that is, when an external light source (such as sunlight) only exists, the display screen and the appearance are integrated, so that the display screen has the concealing effect; and when an internal light source only exists, the contents on the display screen can be clearly seen, so that the function of the display screen is achieved.
Description
Technical field
The present invention relates to a kind of display screen shell and preparation method thereof and the electronic product that comprises this display screen shell.
Background technology
The present electronic product such as the display screen of products such as mobile phone, MP3 still can be clear that the position of display screen under the situation that no signal shows.And when no light background, make display screen be in hidden state, open background light after, the effect that makes display screen present displaying contents can't reach.
Summary of the invention
The display screen shell that the objective of the invention is to overcome prior art can not make the display screen of electronic product have concealment effect, display screen shell that a kind of display screen that makes electronic product has concealment effect and preparation method thereof is provided and comprises the electronic product of this display screen shell.
The invention provides a kind of display screen shell, wherein, this display screen shell comprises base material and attached to the semi-transparent coating of base material one side surface with attached to the light tight coating of base material opposite side part surface, described semi-transparent coating attached to base material one side surface comprises prime coat, metal level, middle enamelled coating and top coat layer from inside to outside successively, and the light transmittance of described semi-transparent coating is≤12%.
The present invention also provides a kind of preparation method of display screen shell, wherein, this method is included in base material one side surface and adheres to semi-transparent coating, and adhere to light tight coating at base material opposite side part surface, described semi-transparent coating comprises prime coat, metal level, middle enamelled coating and top coat layer from inside to outside successively, and the light transmittance of described semi-transparent coating is≤12%.
The present invention also provides a kind of electronic product, this electronic product comprises main body, the display screen that matches with this main body and the display screen shell that matches with this display screen, described display screen shell covers on the display screen, wherein, described display screen shell is a display screen shell provided by the invention, described light tight coating attached to the display screen shell except that with the corresponding zone of display screen the zone.
The present inventor finds, the light transmittance of the transparent coatings of control base material one side surface is≤12%, just can make display screen in no background light, be in hidden state, that is, and when (for example only having external light source, sunlight) time, display screen and outward appearance one integrated mass make display screen have concealment effect, when having inner display light source, then can be clear that the content on the display screen, thereby realize the function of display screen.
Description of drawings
Fig. 1 is a display screen shell schematic diagram provided by the invention.
Embodiment
According to the present invention, as shown in Figure 1, described display screen shell comprises base material 1 and attached to the semi-transparent coating of base material 1 one side surfaces with attached to the light tight coating 2 of base material opposite side part surface, described semi-transparent coating attached to base material 1 one side surfaces comprises prime coat 3, metal level 4, middle enamelled coating 5 and top coat layer 6 from inside to outside successively, the light transmittance of described semi-transparent coating is≤12%, is preferably 2-10%.
According to the present invention, in order to satisfy the light transmittance requirement of semi-transparent coating, the light transmittance of described prime coat can be 95-100%; The light transmittance of described metal level can be 5-60%; The light transmittance of enamelled coating can be 5-85% in described; The light transmittance of described top coat layer can be 95-100%.The selection of described light transmittance can be determined according to required appearance.
According to the present invention, as long as satisfy the requirement of light transmittance, the thickness of described prime coat can be adjusted in the scope of broad, and for example, the thickness of described prime coat generally can be the 5-30 micron, is preferably the 10-20 micron.The material of described formation prime coat is not particularly limited, and the material of described formation prime coat can be commercially available, and for example, the model of being buied by Tianjin scenery with hills and waters company is the ultraviolet light polymerization lacquer (light transmittance is 98-100%) of Cashew VM8000.
According to the present invention, the light transmittance of described metal level depends on metal layer thickness, and in order to satisfy the light transmittance requirement of metal level, described metal layer thickness generally can be the 20-100 nanometer, is preferably the 20-60 nanometer.The material of described formation metal level can in very large range change, the requirement of described metal level is determined according to the metal effect of described display screen shell, as long as can make this metal level have metal-like, under the preferable case, the material of described metal level can be selected from one or more in indium, tin, aluminium, nickel, chromium, copper, silver and the titanium.
According to the present invention, the transparency of the coating of enamelled coating in the thickness of enamelled coating and the formation during the light transmittance of described middle enamelled coating depends on, for the light transmittance requirement of enamelled coating in satisfying, the thickness of described middle enamelled coating can be the 5-30 micron, is preferably the 5-15 micron.The material of enamelled coating is generally by the colored varnish and the coating that obtains after pigment mixes in the described formation, light transmittance requirement for enamelled coating in satisfying, the transparency of described coating is generally 5-85%, and in order to obtain the coating of described transparency, the weight ratio of the described pigment and the colored varnish is generally less than 1: 10.The described colored varnish can be commercially available, for example, the model that Tianjin scenery with hills and waters company buys is the Cahsew VM9000 colored varnish, described pigment can be commercially available, for example Cashew pigment is buied by scenery with hills and waters company in Tianjin, the color of described pigment can be selected according to product needed, for example, can be selected from redness, yellow, purple and the black one or more.
According to the present invention, as long as satisfy the requirement of light transmittance, the thickness of described top coat layer can be adjusted in the scope of broad, and for example, the thickness of described top coat layer generally can be the 5-25 micron, is preferably the 10-20 micron, to play the effect of protection display screen shell.The material of described formation finish paint can be commercially available, and for example, the model that scenery with hills and waters company in Tianjin buys is the ultraviolet light polymerization lacquer (light transmittance is 98-100%) of Cashew VM7302.
According to the present invention, in order to make the base material part that does not adhere to light tight coating corresponding with the position of the form body of display screen, described light tight coating attached to base material opposite side part surface is preferably placed at the edge of substrate surface, and the thickness of described light tight coating can be the 5-20 micron.The width of described light tight coating can in very large range change, as long as can reach the displaying contents that the effect of covering light can guarantee not block the form body of display screen again, its width can be adjusted according to actual needs, for example, the width of described light tight coating generally can be the 5-70% of base material width, and the width of the light tight coating of edge can be the same or different.The material of described light tight coating is not particularly limited, and the material of described light non-transmittable layers can be commercially available, for example, and the one-component coating of the BS-002 model that beautiful magnificent company buys.
According to the present invention, the material of described base material can be the various materials that are used for the display screen shell, for example, can be the Merlon (PC) of 12000-18000 or the polymethyl methacrylate (PMMA) that weight average molecular weight is 20000-200000 for weight average molecular weight; In order to satisfy the requirement of display screen shell light transmittance, the light transmittance of described base material can be 85-92%.
According to the present invention, the preparation method of described display screen shell is included in base material one side surface and adheres to semi-transparent coating, and adhere to light tight coating at base material opposite side part surface, described semi-transparent coating comprises prime coat, metal level, middle enamelled coating and top coat layer from inside to outside successively, the light transmittance of described semi-transparent coating is≤12%, is preferably 2-10%.
Forming light transmittance at substrate surface is that the method for the metal level of 5-60% can be the various methods that can form metal level, for example, can be galvanoplastic, electroless plating method or physical vapor deposition coating film method, be preferably the physical vapor deposition coating film method, because the metal layer thickness that the method for the vacuum evaporation in the physical vapor deposition coating film method obtains is even and relatively good with the adhesive force of base material, therefore, further preferred method by vacuum evaporation forms described metal level, the method of described vacuum evaporation is included under the condition of vacuum evaporation, with evaporation after forming the metallic particles heating and melting of metal level to substrate surface.
According to preparation method provided by the invention, in the preferred case, it is 5-60% that the consumption of described metallic particles makes the light transmittance of described metal level.The present inventor finds through experiment, and the base material that evaporation is every square centimeter uses the metallic particles of 0.03-0.05 gram can obtain the metal level of light transmittance as 15-30%.Generally, when adopting the vacuum evaporation plating machine of 800 cm diameters to carry out evaporation, the amount of the required metallic particles that uses restrains as 0.01-0.08.
According to preparation method provided by the invention, the condition of described vacuum evaporation is for well known to a person skilled in the art, for example the vacuum pressure of vacuum evaporation is 1 * 10
-3-8 * 10
-3Pa.
Usually, when carrying out vacuum evaporation, adopt three kinds of heating sources usually, promptly resistance heating source, electron beam heating and induction heating source are used for heating and evaporation deposition material.The induction heating source is mainly used in extensive coating instrument, because because high-frequency use, it tends to use complicated ancillary equipment.Because electron beam heating can evaporate the material of almost all kinds, so it is widely used in main equipment, also is used for the manufacturing of experimental thin films.Characteristics such as install simply owing to having in the resistance heating source, low price are used for various fields.
In the present invention, during as deposition material, both can adopt the resistance heating source to heat the metallic particles that forms metal level, and also can adopt electron beam heating to heat, and preferably adopt the resistance heating source to heat.
According to preparation method provided by the invention, in the preferred case, the described mode that will form the metallic particles heating and melting of metal level is a resistance heating, and the power of described resistance heating is the 10-40% of gross power.
According to preparation method provided by the invention, in the preferred case, the described mode that will form the metallic particles heating and melting of metal level comprises that earlier at power be preheating 10-25 second under the condition of 10-35% of gross power, it is heating fritting 15-50 second under the condition of gross power 25-40% at power then, described metallic particles is carried out fritting, and then be the following heating of condition of the 30-60% of gross power at power.The purpose of fritting is that metallic particles is slowly heated, and splash takes place when preventing metallic particles fusion evaporation, so that product appearance is produced harmful effect, and prevents to cause non-conductive performance or the uniformity variation that makes formed metal level, influences the quality of plated film.
A preferred embodiment of the invention is carried out vacuum evaporation at substrate surface and is carried out in vacuum evaporation plating machine, and concrete operating procedure is as follows:
1, the metallic particles that will form metal level is contained in the tungsten boat as deposition material, and the positive and negative electrode of electrode is connected in the vacuum chamber of tungsten boat two ends and vacuum evaporation plating machine; The evaporation pot that base material is housed is put on the work rest of vacuum chamber, then vacuum chamber is vacuumized;
2, reach 1 * 10 when the indoor vacuum pressure of vacuum
-3-8 * 10
-3During Pa, connecting the resistance heating source, is that the 10-35% of gross power carries out preheating 10-25 second with power adjustments, is heating fritting 15 seconds-50 seconds under the condition of gross power 25-40% then with power condition;
3, be the 30-60% heating of gross power in power adjustments again, when the complete fusion of metallic particles in the tungsten boat, open baffle plate immediately and begin evaporation, remain on the speed of per second 3-10 dust with the evaporation rate of optical film thickness meter monitoring metallic particles.Metal vapors molecule evaporation forms film to substrate surface at substrate surface.
Under the preferable case, ion cleans and the internal stress of reduction rete for base material is carried out, and to improve the compactness and the adhesive force of rete, before to the base material plated film, uses ion bombardment rod bombardment substrate 2-5 minute.Described ion bombardment can directly be carried out on the used vacuum evaporation plating machine of described vacuum evaporation, and further the vacuum pressure in being evacuated to vacuum chamber reaches 1 * 10
-3-8 * 10
-3Carry out before the Pa.
The method of enamelled coating can adopt the whole bag of tricks of this area routine in substrate surface forms, and for example, the color paint coating that adopts the method that sprays will have one or more colors sprays to substrate surface, solidifies enamelled coating in the formation of back.For example, with the colored varnish and diluent, curing agent and mill base mixed diluting to the viscosity of coating with lacquer is 7-10 second, requirement for enamelled coating light transmittance in satisfying, the consumption of mill base makes that the transparency of color paint coating is 5-85%, generally speaking, the consumption of mill base is that the 10 weight % of total amount of the colored varnish are following (in order to obtain the color paint coating that transparency is 5-85%, those skilled in the art can be according to the color of selected mill base, and the method for the transparency by adopting the spectrophotometer measurement color paint coating is determined the consumption of mill base); Spray to substrate surface then, stay flat 3-5 minute, solidify the back and form prime coat.
In order to meet individual requirements, under the preferable case, adopt multicolor spraying method that paint spay-coating is formed the gradual change chromatic effect of nature to substrate surface, according to the present invention, the method for enamelled coating is included in sprayed coating on the base material in the formation; Comprise at least one group of area to be sprayed on the surface of described base material, one group of area to be sprayed wherein comprises a plurality of areas to be sprayed, and described a plurality of areas to be sprayed comprise first area to be sprayed, second area to be sprayed and the 3rd area to be sprayed at least; Second area to be sprayed is adjacent with the 3rd area to be sprayed with first area to be sprayed respectively, the method of sprayed coating comprises first spraying and second spraying at least on base material, described first spraying comprises that paint spay-coating with a kind of color is on first area to be sprayed and second area to be sprayed, described second sprays on paint spay-coating to the three areas to be sprayed and second area to be sprayed that comprise another kind of color, first spraying and second spraying are not carried out simultaneously, and the transparency of described coating is 5-85%.
According to the present invention, can adopt the transparency of the method mensuration coating of various routines, as, adopt spectrophotometer measurement.
Under the preferable case, in order to reach better spraying effect, first spraying and second sprays the spraying that hockets, and and then carries out second spraying after first spraying.
According to the present invention, the color of described second area to be sprayed is the intermediate color of the color of first area to be sprayed and the 3rd area to be sprayed, the gradual change look color that this second area to be sprayed forms is more natural, realize different fade effect by the big I of area of adjusting first area to be sprayed and the 3rd area to be sprayed and second area to be sprayed, second area to be sprayed, be that gradation zone is big, color transition is slow, second area to be sprayed, be that gradation zone is little, color transition is rapid, according to method of the present invention, can select suitable area size according to product needed.
The color that sprays to the coating on first area to be sprayed and second area to be sprayed can be shades of colour with the color that sprays to the coating on the 3rd area to be sprayed and second area to be sprayed, preferably can independently be selected from redness, yellow, purple and the black one or more separately, and the color that sprays to the coating on first area to be sprayed and second area to be sprayed is different with the color of coating on spraying to the 3rd area to be sprayed and second area to be sprayed.
The spraying equipment that the equipment that described spraying is adopted uses in can the spraying method for routine, for example, spray gun, the thickness that adopts spray gun to spray the dope layer that obtains can be the coating thickness of routine, generally, when adopting spray gun to spray, coating is sprayed from spray gun with fan-shaped, therefore, the coating content of fan-shaped zone line can be slightly more than the quantity for spray of peripheral region, therefore, when alternately spraying according to method of the present invention, the thickness of the dope layer that forms on the thickness of the dope layer that the overlapping region promptly forms on second area to be sprayed and first area to be sprayed and the 3rd area to be sprayed does not have very big-difference, still can access the uniform coating of thickness.
According to the present invention, can make paint spay-coating on matrix surface by the interval of adjusting adjacent spraying equipment, the spraying position and the spraying swath of spraying equipment, make the change lap form the color region of gradation zone and realize the effect of good gradual change.
Generally speaking, spraying equipment and base material are horizontal positioned, and the horizontal range between spraying equipment and the base material can be 30-100 centimetre; Distance between the described adjacent spraying equipment can be 20-50 centimetre; The spray angle of described spraying equipment generally can be 10-80 °.The coating that sprays from spraying equipment generally is that the point with spraying equipment ejection coating is the cone shape that fixed point forms, and the side is fan-shaped, and described spray angle refers to the angle between any two buses of circular cone.
Preferred employing multicolor spraying method of the present invention can make the display screen shell have the colors of using more.
According to the present invention, the formation method of described prime coat, top coat layer and light tight coating can adopt the method for existing various routines, for example, and the method for spraying.
For example, when forming prime coat, the viscosity that the colored varnish and mixing diluents is diluted to lacquer is 7-9 second, sprays to substrate surface then, stays flat 3-5 minute, solidifies back formation prime coat.
When forming top coat layer, the viscosity that the colored varnish and mixing diluents is diluted to lacquer is 7-9 second, sprays to substrate surface then, stays flat 3-5 minute, solidifies back formation top coat layer.
When forming light tight coating, will need the part of the substrate surface of printing opacity to stick diaphragm earlier, be 9-12 second with opaque colored paint and mixing diluents to viscosity then, spray to substrate surface then, stay flat 3-5 minute, solidify the back and form light tight coating.Then, tear diaphragm, formed position and the corresponding zone of shape with form.
The condition of described spraying can be the spraying condition of routine, for example, comprises spraying temperature and spraying humidity, and described spraying temperature generally can be 18-25 ℃, and the relative humidity of described spraying generally can be 40-70%.
The kind of described diluent can be the various diluents of this area routine, for example, and Cashew 9002 products of buying by Tianjin scenery with hills and waters company or the BS-02 product of buying by the magnificent company of beauty.
The method of testing of described viscosity can adopt salt pan viscosity cup to test, and this method of testing is conventionally known to one of skill in the art.
The method of described curing can adopt the curing of existing various routines, for example, can be selected from the method for employing hot curing or the method for photocuring according to the difference of coating, the condition of described curing can be the condition of cure of routine, for example, the condition of hot curing comprises that the temperature of curing can be 50-80 ℃, and the time of curing can be 5-10 minute; The condition of photocuring comprises earlier 40-100 ℃ of oven dry 10-15 minute down, and through UV-irradiation 20-25 second, the ultraviolet light polymerization energy generally can for the 1200-1600 millijoule/centimetre
2, intensity generally can for the 400-800 milliwatt/centimetre
2Can obtain good solidifying film layer.The colored varnish of described formation top coat layer and prime coat is generally the UV lacquer, therefore, generally adopts the method for ultraviolet light polymerization.The lacquer of enamelled coating and light tight coating is generally the thermosetting lacquer in the described formation, therefore, generally adopts the method for hot curing; The kind of described curing agent is conventionally known to one of skill in the art, for example, and the Cashew KM-2 that buys by Tianjin scenery with hills and waters company.
According to the present invention, this method can also be included in before the spraying, and base material is cleaned to remove the dirt of substrate surface.The method of described cleaning can adopt the cleaning method of various routines, for example, and with white spirit or alcohol-pickled or drip washing.
The present invention also provides a kind of electronic product, this electronic product comprises main body, the display screen that matches with this main body and the display screen shell that matches with this display screen, described display screen shell covers on the display screen, wherein, described display screen shell is a display screen shell provided by the invention, described light tight coating attached to the display screen shell except that with the corresponding zone of display screen the zone.
Described main body comprises the various elements that can realize the electronic product function that hold in this electronic product casing, and the kind of described each element, combination and annexation thereof are conventionally known to one of skill in the art, here repeat no more.
The present invention is not particularly limited described electronic product, can be mobile phone, MP3 player, PDA and digital camera etc., is preferably mobile phone.
Below by embodiment the present invention is described in more detail.
Embodiment 1
This embodiment is used to illustrate the preparation of display screen shell of the present invention
1, forms semi-transparent coating at base material one side surface
1) primer coating
Is 8 seconds with priming paint crude oil (Cashew VM8000) (99%) and diluent (Cashew 9002) with 1.5: 1 weight ratio mixed diluting to viscosity, (Merlon (PC1414) thickness is 2 millimeters to be sprayed on the housing base material that cleans up, light transmittance is 90%) side surface, toasted 8 minutes down at 65 ℃ then, and be cured in 25 seconds with ultraviolet irradiation, energy be 1500 millijoules/centimetre
2, intensity be about 450 milliwatts/centimetre
2, obtain thickness and be 16 microns primer coating (light transmittance is 99%).
2) metal level
(Taibei vacuum TPM-1618-36V-1) is carried out the vacuum evaporation metal level to adopt vacuum coating equipment.
Tin particles is contained in the tungsten boat as deposition material, and tungsten boat two ends are connected with the positive and negative electrode of the interior electrode of vacuum chamber of vacuum evaporation plating machine; The evaporation pot that base material is housed is put on the work rest of vacuum chamber, then vacuum chamber is vacuumized;
The vacuum pressure indoor when vacuum reaches 2 * 10
-3During Pa, connecting the resistance heating source, is that 34% of gross power was carried out preheating 25 seconds with power adjustments, is heating fritting 45 seconds under the condition of gross power 40% then with power condition;
Be 46% heating of gross power again in power adjustments, when the complete fusion of metallic particles in the tungsten boat, open baffle plate immediately and begin evaporation, remain on the speed of per second 10 dusts with the evaporation rate of optical film thickness meter monitoring metallic particles, the plated film time is 25 seconds, tin metal vapour molecule evaporation is to substrate surface, and forming thickness on prime coat is the metal level (light transmittance is 30%) of 20 nanometers.
3) enamelled coating in
It is 8.2 seconds that middle lacquer crude oil (Cashew VM9000) transparency 99%, diluent (Cashew 9002) are mixed to viscosity with curing agent (Cashew KM-2) with 1: 2: 0.1 weight ratio;
2% black color paste with 3% red mill base of former weight of oil and former weight of oil joins in the above-mentioned colourless coating respectively, fully stir, obtain transparency respectively and be 25% encrimson and transparency and be 25% blacking (transparency employing spectrophotometer measurement);
Join the above-mentioned coating that mixes up in the oil drum respectively; And adjustment spray gun position and spraying swath (horizontal range between spray gun and the base material is 60 centimetres, and the horizontal range between the adjacent spray gun is 30 centimetres, and spray angle is 60 °); Open spray gun, the spraying encrimson is opened spray gun then to corresponding area to be sprayed earlier, and spray black coating makes and alternately sprays encrimson and blacking to corresponding area to be sprayed, and then carries out the black spraying after the red spraying;
After spraying finishes, base material was toasted 20 minutes down at 80 ℃, the thickness of the middle enamelled coating of formation is 15 microns (light transmittance is 24.7%).
4) top coat layer
Finish paint crude oil (Cashew 7302) transparency 99% and diluent (Cashew 9002) are mixed according to 10: 8 weight ratio, be sprayed in the above-mentioned formation on the housing base material behind the lacquer coat, toasted 8 minutes down at 65 ℃, and be cured in 25 seconds with ultraviolet irradiation, energy be 1600 millijoules/centimetre
2, intensity be about 450 milliwatts/centimetre
2, obtain thickness and be 16 microns topcoat (light transmittance is 99%).
The light transmittance of this semi-transparent coating is 7.2%.(99% (base material) * 99% (prime coat) * 30% (metal level) * 24.7% (middle enamelled coating) * 99% (top coat layer))
2, form light tight coating on base material opposite side surface
(promptly with the corresponding zone of display screen) sticks diaphragm on the opposite side of this base material surface and the corresponding zone of form that forms display screen, is 9 second with diluent (beautiful magnificent BS-02) with 2: 1 weight ratio mixed dilutings to paint viscosity with crude oil (beautiful magnificent BS-002), be sprayed on the base material opposite side surface that cleans up, width is 8 millimeters; Then 65 ℃ of down bakings 10 minutes, obtain thickness and be 10 microns light tight coating.And tear diaphragm off.
Claims (15)
1. display screen shell, it is characterized in that, this display screen shell comprises base material, attached to the semi-transparent coating of base material one side surface with attached to the light tight coating of base material opposite side part surface, described semi-transparent coating comprises prime coat, metal level, middle enamelled coating and top coat layer from inside to outside successively, and the light transmittance of described semi-transparent coating is≤12%.
2. display screen shell according to claim 1, wherein, the light transmittance of described semi-transparent coating is 2-10%.
3. display screen shell according to claim 1, wherein, the light transmittance of described prime coat is 95-100%, and the light transmittance of metal level is 5-60%, and the light transmittance of middle enamelled coating is 5-85%, and the light transmittance of top coat layer is 95-100%.
4. according to claim 1 or 3 described display screen shells, wherein, the thickness of described prime coat is the 5-30 micron, and metal layer thickness is the 20-100 nanometer, and the thickness of middle enamelled coating is the 5-30 micron, and the thickness of top coat layer is the 5-25 micron.
5. display screen shell according to claim 1, wherein, described light tight coating is positioned at the edge on base material opposite side surface, and the thickness of described light tight coating is the 5-20 micron.
6. display screen shell according to claim 1, wherein, the material of described metal level is selected from one or more in indium, tin, aluminium, nickel, chromium, copper, silver and the titanium; The color of enamelled coating is selected from one or more in redness, yellow, purple and the black in described; Described base material is Merlon or polymethyl methacrylate, and the light transmittance of described base material is 85-92%.
7. the preparation method of the described display screen shell of claim 1, it is characterized in that, this method is included in base material one side surface and adheres to semi-transparent coating, and adhere to light tight coating at base material opposite side part surface, described semi-transparent coating comprises prime coat, metal level, middle enamelled coating and top coat layer from inside to outside successively, and the light transmittance of described semi-transparent coating is≤12%.
8. method according to claim 7, wherein, the light transmittance of described prime coat is 95-100%, and the light transmittance of metal level is 5-60%, and the light transmittance of middle enamelled coating is 5-85%, and the light transmittance of top coat layer is 95-100%; The thickness of described prime coat is the 8-30 micron, and metal layer thickness is the 20-100 nanometer, and the thickness of middle enamelled coating is the 5-30 micron, and the thickness of top coat layer is the 5-25 micron.
9. method according to claim 7, wherein, described light tight coating is positioned at the edge on base material opposite side surface, and described light tight coating layer thickness is the 5-20 micron.
10. method according to claim 7, wherein, the material of described metal level is selected from one or more in indium, tin, aluminium, nickel, chromium, copper, silver and the titanium; The color of enamelled coating is selected from one or more in redness, yellow, purple and the black in described; Described base material is Merlon and/or polymethyl methacrylate, and the light transmittance of described base material is 85-92%.
11. method according to claim 7, wherein, the method for enamelled coating is included in sprayed coating on the substrate surface in the formation; Comprise at least one group of area to be sprayed on the surface of described base material, one group of area to be sprayed wherein comprises a plurality of areas to be sprayed, and described a plurality of areas to be sprayed comprise first area to be sprayed, second area to be sprayed and the 3rd area to be sprayed at least; Second area to be sprayed is adjacent with the 3rd area to be sprayed with first area to be sprayed respectively, the method of sprayed coating comprises first spraying and second spraying at least on base material, described first spraying comprises that paint spay-coating with a kind of color is on first area to be sprayed and second area to be sprayed, described second sprays on paint spay-coating to the three areas to be sprayed and second area to be sprayed that comprise another kind of color, first spraying and second spraying are not carried out simultaneously, and the transparency of described coating is 5-85%.
12. method according to claim 11, wherein, first spraying and second sprays the spraying that hockets, and and then carries out second spraying after first spraying.
13. method according to claim 11, wherein, the color that sprays to the color of the coating on first area to be sprayed and second area to be sprayed and spray to the coating on the 3rd area to be sprayed and second area to be sprayed independently is selected from one or more in redness, yellow, purple and the black separately, and the color that sprays to the coating on first area to be sprayed and second area to be sprayed is different with the color of coating on spraying to the 3rd area to be sprayed and second area to be sprayed.
14. method according to claim 7, wherein, the method that forms metal level is the method for vacuum evaporation, and the method for described vacuum evaporation is included under the condition of vacuum evaporation, with evaporation after forming the metallic particles heating and melting of metal level to substrate surface; It is 5-60% that the condition of described vacuum evaporation makes the light transmittance of the metal level of formation.
15. electronic product, this electronic product comprises main body, the display screen that matches with this main body and the display screen shell that matches with this display screen, described display screen shell covers on the display screen, it is characterized in that, described display screen shell is any described display screen shell among the claim 1-6, described light tight coating attached to the display screen shell except that with the corresponding zone of display screen the zone.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810187605 CN101765344B (en) | 2008-12-26 | 2008-12-26 | Display screen casing, preparation method thereof and electronic product including same |
| US12/639,944 US8084119B2 (en) | 2008-12-26 | 2009-12-16 | Mobile phone shell and method of manufacturing the same |
| DE200960000916 DE602009000916D1 (en) | 2008-12-26 | 2009-12-23 | Outer shell for display screen, manufacture same and electrical appliance having the same |
| EP20090180597 EP2219348B1 (en) | 2008-12-26 | 2009-12-23 | Shell for display screen and fabricating method thereof, and electronic device having the same |
| AT09180597T ATE502475T1 (en) | 2008-12-26 | 2009-12-23 | OUTER SHELL FOR DISPLAY SCREEN, MANUFACTURING THE SAME AND ELECTRICAL APPARATUS HAVING THE SAME |
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| CN 200810187605 CN101765344B (en) | 2008-12-26 | 2008-12-26 | Display screen casing, preparation method thereof and electronic product including same |
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| CN101765344A true CN101765344A (en) | 2010-06-30 |
| CN101765344B CN101765344B (en) | 2013-01-30 |
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