CN101409735A - Metal sticker for keypad of mobile phone and method for manufacturing the same - Google Patents
Metal sticker for keypad of mobile phone and method for manufacturing the same Download PDFInfo
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- CN101409735A CN101409735A CNA2008101444146A CN200810144414A CN101409735A CN 101409735 A CN101409735 A CN 101409735A CN A2008101444146 A CNA2008101444146 A CN A2008101444146A CN 200810144414 A CN200810144414 A CN 200810144414A CN 101409735 A CN101409735 A CN 101409735A
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- layer
- keyboard
- metal
- photoresist
- mobile phone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
Abstract
Provided is a metal label for the keyboard of mobile phones and method of manufacturing the same. The metal label is adhered to the keyboard of mobile phones and the keyboard irradiates permeating from a plurality of keys of letters or numbers. The method includes: (a) preparing a conducting substrate; (b) applying on photoresist onto the conducting substrate surface to form a photoresist layer; (c) placing the mask on the upper surface of the photoresist layer for performing exposure and developing to form photoresist patterns; (d) performing plating to the surface of the conducting substrate formed with photoresist patterns to form a metal pattern layer filling the various parts among these photoresist patterns, to form pattern holes corresponding to the letters and numbers; (e) separating the metal pattern layer from the conducting substrate and photoresist patterns, and forming a translucent colored or colorless cover layer on the upper surface of the metal pattern layer; (f) sticking a proliferation film on the lower surface of the metal pattern layer; (g) forming a binding layer on the lower surface of the proliferation film for binding a strippable coherent film.
Description
Technical field
The present invention relates to a kind of metal sticker (metal sticker), hobby according to the user, described metal sticker can be attached on the keyboard of mobile phone or from the keyboard of mobile phone and remove, and more particularly, the present invention relates to be used for the metal sticker and the manufacture method thereof of the keyboard of mobile phone, wherein said metal sticker is attached on the keyboard of mobile phone to improve outward appearance and to effectively prevent the contact dermatitis that is caused by metal, and it is luminous that described keyboard sees through the letter or number that is assigned to a plurality of buttons.
Background technology
Generally speaking, labeling is the printed matter that comprises advertisement statement or advertisement design, and the surface applied of labeling has adhesive with on the position that is attached to expectation.
According to the difference of material, can be divided into paper labeling, resin labeling, metal sticker etc. to labeling.Particularly, metal sticker have gloss and also have other types labeling rare grace.In addition, metal sticker is difficult for being copied, and thereby have an antiforge function, and in large-scale production be not limited to and have competitiveness aspect the flexible manufacturing of shape, big or small and configuration.Therefore, metal sticker has been used to trophy, accessory, promote products, hand work etc.
In the information age, as the mobile phone rapidly expansion of individual mobile communication terminal, most of people of all ages and classes section are using mobile phone as a result.Therefore, people, especially young man have attempted being used for showing that the aesthetic elements of individual character joins mobile phone.For example, introduce the technology of decorating keyboard with the metal style, wherein on described keyboard, be arranged with a plurality of buttons.
More particularly, the keyboard of common mobile phone comprises the dome switch substrate (dome switch substrate) that contains electroluminescent sheet, is used to cover the urethane pad of dome switch substrate and covers urethane pad and be exposed to user's button input pad.User's pressing keys input pad is so that via the dome switch that pushes the dome switch substrate as the urethane pad of intermediate, and meanwhile, it is luminous that electroluminescent sheet sees through the letter or number that is assigned to button, and wherein button is provided to the button input pad.
Therefore, made great efforts by using metal material such as nickel (Ni) to be manufactured on to be exposed in the mobile phone so that improve aesthetic factors by the button input pad of user's direct control.Yet, still have several problems.
At first, the metal such as Ni may cause contact dermatitis.Specifically, when the user makes telephonic the time, skin of face is pushed and contacted to the keyboard of mobile phone directly by user's hand.Metal such as Ni is to cause contact dermatitis and cause itch or the material of fash.In addition, the metal allergy has the sensitizing property that is different from other diseases, and when metal component infiltrates through skin, sx.For example, the hypersensitive incidence of disease of metal owing to Ni significantly increases recently, and accounts for 18% (Korean Journal of Dermatology1995) of compliance contact dermatitis total incidence.
In addition, in the situation of the button input pad that uses metal material manufacturing mobile phone, the color of metal material may be fixed to silver color etc., and does not consider user's hobby, and the button input pad can not be replaced or replace.Therefore, the user becomes and is sick of the button input pad easily.In addition, simple metal color for want to show his/her user of strong individual character is not enough.Therefore, need a kind of aesthetic factors of can improving with the individual character of showing the user and the method that can effectively prevent the side effect that brings such as contact dermatitis etc.
Summary of the invention
Technical problem
The invention provides a kind of metal sticker that is used for the keyboard of mobile phone, hobby according to the user, described metal sticker can easily be attached on the keyboard of mobile phone or from the keyboard of mobile phone and be removed, to improve aesthetic feeling and the effective contact dermatitis that caused by metal of prevention.
The present invention also provides a kind of method of making the metal sticker of the keyboard case that is used for mobile phone with above-mentioned advantage simple and easyly, so that obtain good quality with lower cost.
Technical scheme
According to an aspect of the present invention, the method of the metal sticker of the keyboard that a kind of manufacturing is used for mobile phone is provided, wherein said metal sticker is attached on the keyboard of mobile phone, it is luminous that described keyboard sees through the letter or number that is assigned to a plurality of buttons, said method comprising the steps of: (a) preparation conductive substrates; (b) form the photoresist layer by the surface that photoresist is administered to conductive substrates; (c) by on the upper surface that mask is placed on the photoresist layer and expose and develop and form the photoresist pattern; (d) metal pattern layer that is formed for filling the each several part between the photoresist pattern is electroplated on the surface that is formed with the photoresist pattern on its of conductive substrates, so that form corresponding to the pattern hole of letter with numeral; (e) metal pattern layer is separated with the photoresist pattern with conductive substrates, on the upper surface of metal pattern layer, to form the coloured or colourless covering rete of printing opacity; (f) diffusion sheet is attached on the lower surface of metal pattern layer; And (g) on the lower surface of diffusion sheet, form adhesive layer, and stick stripping film (exfoliation film).
Form covering rete in the step (e) by pigment being applied to the upper surface of metal pattern layer or sticking extra coverlay herein.Step (e) can may further comprise the steps: (e1) bonding film is attached on the upper surface of metal pattern layer of the each several part between filled conductive substrate and the photoresist pattern; And (e2) metal pattern layer is separated with the photoresist pattern with conductive substrates by promoting bonding film.Step (e) may further include following steps: step (e2) (e3) afterwards, remove bonding film; And (e4) form the covering rete by pigment being applied to the upper surface of metal pattern layer or sticking extra coverlay.
In addition, bonding film can be to cover rete, and diffusion sheet can be to be selected from a kind of in holographic picture, prismatic lens, light tiles and the flourescent sheet.
According to another aspect of the present invention, a kind of metal sticker that is used for the keyboard of mobile phone is provided, wherein said metal sticker is attached on the keyboard of mobile phone, it is luminous that described keyboard sees through the letter or number that is assigned to a plurality of buttons, described metal sticker comprises: the patterned layer of metallic film, and it shows corresponding to the plate shape of keyboard and has corresponding to the pattern hole of letter with numeral; Coloured or colourless covering rete, it is formed on the upper surface of patterned layer of metallic film and printing opacity; Diffusion sheet, it is attached on the lower surface of patterned layer of metallic film with diffused light, and diffusion sheet has lower surface, is formed with adhesive layer on the lower surface of described diffusion sheet; And stripping film, it is attached on the lower surface of diffusion sheet, so that after removing stripping film, diffusion sheet is attached on the keyboard of mobile phone, so that use.
Beneficial effect
According to the metal sticker that is used for the keyboard of mobile phone of the present invention, can easily be attached to according to user's hobby on the keyboard of mobile phone or and remove, so that can improve aesthetic feeling and can show user's individual character from the keyboard of mobile phone.
In addition, the metal sticker that is used for the keyboard of mobile phone according to the present invention can be adjusted from the aesthetic feeling aspect, and can see through the light that button sends, and simultaneously by using the contact dermatitis that covers rete and effectively prevented to cause by metal by using diffusion sheet diffusion such as holographic picture, prismatic lens, light tiles, flourescent sheet and analog.
In addition, provide the method for the metal sticker of making the keyboard that is used for mobile phone, so that can make the product of high-quality with lower cost with above-mentioned advantage simple and easyly.
Description of drawings
Fig. 1 is the vertical view of having explained according to the metal sticker of the keyboard case that is used for mobile phone of the present invention.
Fig. 2 is the sectional view of having explained according to the metal sticker of the keyboard that is used for mobile phone of the present invention.
Fig. 3 is the flow chart of making according to the method for the metal sticker of the keyboard that is used for mobile phone of the present invention.
Fig. 4 to Figure 11 is the sectional view of explanation according to the manufacture process of the metal sticker of the keyboard that is used for mobile phone of the present invention.
Embodiment
Below, will be described in detail with reference to the attached drawings exemplary embodiment of the present invention.Fig. 1 is the vertical view of explaination according to the metal sticker 150 of the keyboard case that is used for mobile phone of one embodiment of the invention.Fig. 2 is the sectional view of explaination along the metal sticker 150 of the line A-A intercepting of Fig. 1.Below, for convenience of explanation, the metal sticker 150 that will be used for the keyboard case of mobile phone is called metal sticker 150.
Explain as Fig. 1 and Fig. 2, metal sticker 150 according to the present invention has the thin plate profile, and the outer appearnce of metal sticker 150 is similar to the keyboard of mobile phone, so that according to user's hobby, metal sticker 150 is attached on the keyboard of mobile phone or from the keyboard of mobile phone and removes.Herein, using the mobile phone according to metal sticker 150 of the present invention is common mobile phone, and wherein a plurality of buttons are arranged in the plane, and corresponding letter or number is assigned to described button, and sends light through described button.As long as comprise keyboard, the configuration between keyboard and the screen can be any one in flip-type, sliding-type and the board-type.
In addition, metal sticker 150 according to the present invention has the effect that improves outward appearance, and does not consider to be fixed to the operation of button of the keyboard of mobile phone, and also has the effect of the contact dermatitis that effective prevention causes by metal.For this reason, metal sticker 150 comprises patterned layer 160 and the covering rete 170 and the diffusion sheet 180 that form respectively on the upper surface of patterned layer 160 and lower surface, and wherein patterned layer 160 is the metallic films with area of the keyboard that is equivalent to mobile phone.In addition, on the lower surface that offers the user of diffusion sheet 180, post stripping film 190.
Now each parts will be described.
At first, the patterned layer 160 of metallic film is the layer that is coated with metal, and it is obtained by described manufacture method after a while, and can be made by nickel (Ni), chromium (Cr), copper (Cu) and analog.Pass the pattern hole 162 that patterned layer 160 forms corresponding to the letter or number that is assigned to button.
Then, the covering rete 170 that forms at the upper surface of the patterned layer 160 of metallic film is coloured or colourless protective layers of printing opacity.Cover rete 170 and have the directly effect of the contact dermatitis that causes by metal with prevention of contact skins of patterned layer 160 of avoiding metallic film, and also have the effect that improves the aesthetic feeling of outward appearance in the light that the letter or number that sees through the button that is assigned to keyboard sends by color is joined.For this reason, cover rete 170 and can be the coating that scribbles pigment on the upper surface of the patterned layer 160 of metallic film, or be attached to the extra coverlay of upper surface of the patterned layer 160 of metallic film.Coverlay can be the resin of being made by polyethylene terephthalate (PET), Merlon (PC), acryloyl or urethanes.
Then, the diffusion sheet 180 that forms on the lower surface of the patterned layer 160 of metallic film is to be used for diffusion or to adjust light that the letter or number that sees through the button that is assigned to keyboard sends to improve the coloured or colourless optical sheet of outward appearance.In addition, the lower surface at diffusion sheet 180 forms extra adhesive layer.For this reason, diffusion sheet 180 can be the prismatic lens that is formed from a resin, holographic picture, flourescent sheet or light tiles or any material that improves aesthetic feeling via light diffusion.Herein, prismatic lens little pattern of referring to use the diffraction cause owing to wave pattern (moire pattern) to have prism shape by the one or more surfaces that give resin sheet shows versicolor product.Holographic picture refers to utilize the interference of ripple to realize the product of shape or pattern.Flourescent sheet refers to send the product of light, X ray, radioactive ray and the analog of different colours.Light tiles refers to luminous product.Above-mentioned is all used well-known product.
In addition, stripping film 190 is attached to the lower surface of diffusion sheet 180.Therefore, after removing stripping film 190, the user can be attached to the lower surface of diffusion sheet 180 on the keyboard of mobile phone, to use according to metal sticker 150 of the present invention.
Fig. 3 is the flow chart of making according to the method for metal sticker 150 of the present invention.Fig. 4 to Figure 11 is the sectional view of explanation according to the manufacturing step of described method.Now describe the method for manufacturing in detail according to metal sticker 150 of the present invention according to Fig. 4 to Figure 11.
At first, in order to make, as the preparation substrate 100 (step 1) that Fig. 4 explained according to metal sticker 150 of the present invention.Herein, because substrate 100 is being used as electrode in the described plating step after a while,, or has wherein when needing metal level and be attached to structure such as the dielectric substrate of glass so substrate 100 can be the metallic plate with conductivity such as corrosion resistant plate.
Then, explain, form photoresist layer 110 (step 2) by the surface that photoresist is administered to substrate 100 with predetermined thickness as Fig. 5.
Herein, photoresist is to utilize illumination to cause the photosensitive polymer that maybe can cause monomer polymerization such as similar variations such as bridged bond (bridge bonding), painted, separation.Photoresist can be eurymeric or minus, and wherein, in eurymeric, a part is subjected to light-struck photoresist meeting hardening, and minus in contrast.For convenience of explanation, suppose use eurymeric.If desired, before using above-mentioned photoresist, abrasive such as diamond dust or aloxite (AI can be dispersed on the surface of substrate 100, and scrape abrasive with metallic brush or analog, the scratch that has the nan orelief shape with generation sticks the patterned layer of described metallic film after a while (patterned layer 160 of the metallic film that is called as in Fig. 8 to be explained) or remove so that can be easily.
Then, explain, mask 120 is placed on the upper surface of photoresist layer 110 as Fig. 6, and by using suitable developer to expose and developing.
Herein, mask 120 comprises the printing opacity unit 124 that blocks unit 122 and printing opacity that is used for shading.When supposition photoresist layer 110 is eurymeric, after developing, remove the part corresponding to mask 120 of blocking unit 122 so, can obtain the photoresist pattern 116 of explaining as Fig. 7.In this case, the shape of the patterned layer 160 that is exposed to the metallic film among shape and Fig. 8 between the photoresist pattern 116 of substrate 100 is actually the same.Herein, employed mask 120 can be a contact in exposure, so that as the direct contact photoresist layer 110 of being explained.Yet if desired, mask 120 can be proximity or projection, so that be placed on the distance of being scheduled to from photoresist layer 110.According to the relation between mask 120 and the photoresist layer 100, can use step and repeat process or step-by-step scanning.
Then, explain, the surface that is formed with photoresist pattern 116 on its of substrate 100 is electroplated as Fig. 7.
Herein, in these galvanoplastic, immerse and to contain in the electrolysis tank of electroplate liquid with substrate 100 with such as the electroplated metal material that is used for of nickel plate, and will (-) voltage and (+) voltage be applied to respectively on substrate 100 and the metal material so that metal material is deposited on substrate 100.As mentioned above, as a kind of electro-plating method, can adopt wet galvanoplastic.
Therefore, the each several part between photoresist pattern 116 has been full of the patterned layer 160 of electrodeposited coating with the formation metallic film, and the remainder of photoresist pattern 116 forms the pattern hole 162 of the patterned layer 160 of penetrating metal film.Herein, the patterned layer 160 of metallic film can be increased to and be higher than photoresist pattern 116, so that the patterned layer 160 that can be easy to remove metallic film in the described patterned layer that makes metallic film 160 after a while and substrate 100 and photoresist pattern 116 separation steps.
Then, explain as Fig. 9, the bonding film 172 that will have a bonding force is attached on the upper surface of patterned layer 160 of metallic film, and promotes, so that the patterned layer 160 of metallic film is separated with substrate 100 with photoresist pattern 116.Herein, because the height of the patterned layer of metallic film 160 is higher than the height of photoresist pattern 116, so can the patterned layer 160 of metallic film optionally be separated by using bonding film 172.In this process, even bonding film 172 is attached to only part of photoresist pattern 116, the bonding force degree between the patterned layer 160 of bonding film 172 and metallic film is also greater than the bonding force degree between bonding film 172 and the photoresist pattern 116.Therefore, the patterned layer 160 that can separate metallic film to be separated effectively.In addition, in this process,, in same process, can obtain the covering rete 170 that on the patterned layer 160 of metallic film, is implemented simultaneously so if coloured or colourless light transmissive material is used as bonding film 172.In addition, at patterned layer 160 after separatings that make bonding film 172 with the metallic film that separates with photoresist pattern 116 from substrate 100, can be on the upper surface of the patterned layer 160 of metallic film with colourless or coloured pigment application of printing opacity, to form, perhaps can stick extra coverlay and realize covering rete 170 as the coating that covers rete 170.
Then, explain, after the lower surface of the patterned layer 160 that first adhesive layer 182 is administered to metallic film, stick diffusion sheet 180 in addition as Figure 10.
, describe diffusion sheet 180 above in detail herein, so its detailed description is omitted.If desired, after first adhesive layer 182 is administered to the surface of diffusion sheet 180, first adhesive layer 182 can be attached on the lower surface of patterned layer 160 of metallic film.
Then, explain, second adhesive layer 184 is administered to the lower surface of diffusion sheet 180, and stick stripping film 190 in addition as Figure 11., use the cutting method of press cut predetermined portions, to form as Fig. 1 and Fig. 2 were explained according to metal sticker 150 of the present invention thereafter.
, omitted the detailed description of well-known function and structure herein, do not understood the present invention so that do not hinder.For example, before photoresist is administered to the step of substrate 100, can increase the step of clean substrate 100.After exposing and developing, the heat treatment that can be scheduled to improves the intensity of photoresist pattern 116.In addition, before photoresist is administered to the step of substrate 100, not to form scratch, but can knock processing (strike processing) and/or form stripping film with nan orelief shape on the surface of substrate 100.In addition, in plating step (st4 of Fig. 3), not the patterned layer 160 of metallic film to be increased to be higher than photoresist pattern 116, but in plating step (st4) afterwards, remove photoresist pattern 116 by using etchant.
Claims (8)
1. a manufacturing is used for the method for metal sticker of the keyboard of mobile phone, and wherein said metal sticker is attached on the keyboard of mobile phone, and it is luminous that described keyboard sees through the letter or number that is assigned to a plurality of buttons, said method comprising the steps of:
(a) preparation conductive substrates;
(b) form the photoresist layer by the surface that photoresist is administered to described conductive substrates;
(c) form the photoresist pattern by mask being placed on the upper surface of described photoresist layer and exposing and develop;
(d) by the metal pattern layer that is formed for filling the each several part between the described photoresist pattern is electroplated on the surface that is formed with described photoresist pattern on its of described conductive substrates, so that form corresponding to the pattern hole of letter with numeral;
(e) described metal pattern layer is separated with described conductive substrates with described photoresist pattern, and form the coloured or colourless covering rete of printing opacity at the upper surface of described metal pattern layer;
(f) diffusion sheet is attached on the lower surface of described metal pattern layer, and
(g) lower surface at described diffusion sheet forms adhesive layer, sticks stripping film then.
2. the method for claim 1 wherein in described step (e), forms described covering rete by pigment being applied to the upper surface of described metal pattern layer or sticking extra coverlay.
3. the method for claim 1, wherein in described step (e), bonding film is attached to the upper surface of the described metal pattern layer of filling the each several part between described conductive substrates and the described photoresist pattern, and promote described bonding film to separate described metal pattern layer, and after removing described bonding film, on the described upper surface of described metal pattern layer, form described covering rete.
4. the method for claim 1, wherein in described step (e), bonding film is attached to the upper surface of the described metal pattern layer of filling the each several part between described conductive substrates and the described photoresist pattern, and promote described bonding film separating described metal pattern layer, and simultaneously by using described bonding film to form described covering rete.
5. the method for claim 1, wherein said diffusion sheet are to be selected from a kind of in holographic picture, prismatic lens, light tiles and the flourescent sheet.
6. metal sticker that is used for the keyboard of mobile phone, it is attached to the keyboard of mobile phone, and it is luminous that described keyboard sees through the letter or number that is assigned to a plurality of buttons, and described metal sticker comprises:
The patterned layer of metallic film, it shows corresponding to the plate shape of described keyboard and has corresponding to the pattern hole of letter with numeral;
Coloured or colourless covering rete, it is formed on the upper surface of patterned layer of described metallic film and printing opacity;
Diffusion sheet, it is attached on the lower surface of patterned layer of described metallic film with diffused light, and described diffusion sheet has lower surface, is formed with adhesive layer on the lower surface of described diffusion sheet; And
Stripping film, it is attached to the described lower surface of described diffusion sheet, so that after removing described stripping film, described diffusion sheet is attached on the keyboard of mobile phone, so that use.
7. metal sticker as claimed in claim 6, wherein said covering rete are to form by the extra coverlay that becomes coating on the patterned layer that pigment is applied in described metallic film or become the patterned layer that is attached to described metallic film.
8. metal sticker as claimed in claim 6, wherein said diffusion sheet are to be selected from a kind of in holographic picture, prismatic lens, light tiles and the flourescent sheet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070101713A KR100847864B1 (en) | 2007-10-09 | 2007-10-09 | Metal sticker for keypad of mobile phone and manufacturing method the same |
| KR1020070101713 | 2007-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101409735A true CN101409735A (en) | 2009-04-15 |
Family
ID=39825053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101444146A Pending CN101409735A (en) | 2007-10-09 | 2008-07-29 | Metal sticker for keypad of mobile phone and method for manufacturing the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100847864B1 (en) |
| CN (1) | CN101409735A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357846A (en) * | 2016-09-26 | 2017-01-25 | 信利光电股份有限公司 | Manufacturing method of 3D (three-dimensional) embossment cover plate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101706122B1 (en) * | 2015-11-10 | 2017-02-13 | 주식회사 더코더 | Method of manufacturing hologram metallic sticket inserting data |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007529949A (en) * | 2004-03-17 | 2007-10-25 | センステック カンパニー，リミテッド | Cell phone keypad assembly and method for manufacturing the keypad |
| KR20050118053A (en) * | 2004-06-11 | 2005-12-15 | 디케이 유아이엘 주식회사 | Metallic keypad and method for manufacturing the same |
| KR100525320B1 (en) * | 2004-06-22 | 2005-11-02 | (주)삼영테크놀로지 | Metal keypad for portable telephone |
| KR100637335B1 (en) * | 2004-08-26 | 2006-10-23 | 주식회사 엘엔씨테크 | Method for making case plate |
| KR100643127B1 (en) | 2006-02-14 | 2006-11-13 | 주식회사 아이몰드텍 | A key pad structure and method for manufacturing of it |
| KR100790560B1 (en) | 2006-09-15 | 2008-01-02 | 신현석 | A thin film keypad and method for manufacturing thereof |
-
2007
- 2007-10-09 KR KR1020070101713A patent/KR100847864B1/en not_active IP Right Cessation
-
2008
- 2008-07-29 CN CNA2008101444146A patent/CN101409735A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357846A (en) * | 2016-09-26 | 2017-01-25 | 信利光电股份有限公司 | Manufacturing method of 3D (three-dimensional) embossment cover plate |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100847864B1 (en) | 2008-07-23 |
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Open date: 20090415 |