CN101995685A - Secondary encapsulated waterproof process and structure of liquid crystal display (LCD) face frame - Google Patents
Secondary encapsulated waterproof process and structure of liquid crystal display (LCD) face frame Download PDFInfo
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- CN101995685A CN101995685A CN 201010504355 CN201010504355A CN101995685A CN 101995685 A CN101995685 A CN 101995685A CN 201010504355 CN201010504355 CN 201010504355 CN 201010504355 A CN201010504355 A CN 201010504355A CN 101995685 A CN101995685 A CN 101995685A
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Abstract
The invention discloses a secondary encapsulated waterproof process and structure of a liquid crystal display (LCD) face frame. The structure comprises a plastic casing face frame and a waterproof plastic inner frame integrated with the plastic casing face frame by injection molding, wherein the waterproof plastic inner frame is distributed and combined along the annular inner edge of the plastic casing face frame, and the waterproof plastic inner frame extends to a touch control screen in the LCD face frame and is in contact with the surface of the touch control screen to form a waterproof structure. In the waterproof LCD manufacturing process, a first mold is firstly used for forming the plastic casing face frame by injection molding, and then, another mold is used for forming the waterproof plastic inner frame on the plastic casing face frame by injection molding and enabling the waterproof plastic inner frame to be matched with a positioning column on the plastic casing face frame, so that the face frame and the touch control screen form the waterproof structure. The plastic casing of the machine of the invention is formed by secondary molding, and waterproof plastics are directly injected inside the casing by injection molding, thereby achieving the waterproof effect when the water is poured on the screen imprudently. In the invention, after a finished product is assembled, the touch control can not be influenced.
Description
Technical field
The present invention discloses a kind of LCD face frame secondary encapsulate waterproof technology and structure, belong to electronic apparatus display fabrication techniques field by International Patent Classification (IPC) (IPC) division, especially relate to large-scale electronic apparatus display device screen waterproof constructions such as display, LCD/LED TV or touch monitor.
Background technology
The Touch Screen of large-scale electronic apparatus display device does not generally have water-proof function design, and its structure is that Touch Screen directly is installed on every side in the face frame.The touch screen structure that present large-scale touch-screen manufacturer produces is for pasting FOAM TAPE (foam press strip) as shown in Figure 1, Touch Screen A1 is arranged in the housing B1, and housing is provided with annular groove around Touch Screen, FOAM TAPE C1 is pasted in the annular groove and Touch Screen is close to, this mode can only play dustproof and can not play waterproof effect, and it is more time-consuming to paste FOAM TAPE; Also has a kind of subsides WIPER BLADE (Wiper blade) touch screen structure in addition as shown in Figure 2, this housing B2 structure and last kind are similar, housing is provided with annular groove around Touch Screen, WIPER BLADE C2 pastes in annular groove and is close proximity to Touch Screen A2, because WIPER BLADE is a hard material, has certain waterproof, dustproof effect, but need operator to go to paste when producing time-consumingly, and because of making WIPER BLADE and Touch Screen poor fit, the artificial origin damages touch screen easily, large-scale Touch Screen cost is higher, will increase production cost in case damage.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of rational in infrastructure, safe and reliable LCD face frame secondary encapsulate waterproof construction, anti-sealing causes accidental damage to board screen and interior accessory thereof.
The present invention simultaneously also provides a kind of LCD face frame secondary encapsulate waterproof technology, handles making display have water-proof function by opposite frame encapsulate.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of LCD face frame secondary encapsulate waterproof construction, comprise plastic casing face frame and be injected into one waterproof plastic cement inside casing with it, waterproof plastic cement inside casing distributes along the annular inside edge of plastic casing face frame and is combined as a whole, and the Touch Screen of waterproof plastic cement inside casing in LCD face frame extends and contact at the Touch Screen surface and form water proof structure.
Further, described waterproof plastic cement inside casing is made up of plastic cement main body and the compound anti-water end (W.E.) of plastic cement for one, and plastic cement prevents that water end (W.E.) is the tip-angled shape that the plastic cement main body extends to form to Touch Screen, and and the contact angle of touch screen between 50 ± 10 °.
Further, after described waterproof plastic cement inside casing and plastic casing face frame and the touch screen assembling, water ripple phenomenon does not appear in the minimum 3kgf.cm of pressure criteria that touch screen shows viewed area, water ripple phenomenon does not appear in the minimum 5kgf.cm of the pressure criteria in frame plastic cement zone, and wherein the plastic cement body thickness of waterproof plastic cement inside casing is at 1.5 ± 0.2mm.
Further, described plastic casing face frame and waterproof plastic cement inside casing cooperation place are provided with some reference columns or pilot hole, the compactedness during with assurance plastic casing face frame and the post forming of waterproof plastic cement inside casing.
Further, described waterproof plastic cement inside casing is the TPE material, and this TPE material hardness is injected on the plastic shell at 50-80 °.
Further, described plastic casing face frame material is the combination forming of ABS or ABS and PC.
A kind of LCD face frame secondary encapsulate waterproof technology, its method for making is as follows:
(1), the first secondary mould injects plastic shell face frame earlier, its material is ABS or ABS+PC, and the plastic casing face frame that injects is provided with some reference columns along the inside casing edge;
(2), again with the another one mould waterproof plastic cement inside casing is injected into plastic shell face frame and cooperates with reference column on it and make this face frame and Touch Screen form water proof structure, this waterproof plastic cement inside casing material: TPE is between hardness: 50-80 °.
The invention provides a kind of waterproof technique preferably, can when water pours into screen because of carelessness, reach good waterproof effect, after the present invention assembles finished product, can not impact touch-control.The plastic casing of loom of the present invention is directly injection-moulded in the shell inboard through post forming with the waterproof plastic cement, through waterproof test, can reach good waterproof effect; In addition, the present invention carries out the test of ripples line: test 17 points and do not find the ripples line.
Description of drawings
Fig. 1 is the existing FOAM of subsides TAPE structural drawing;
Fig. 2 is the existing WIPER of subsides BLADE structural drawing;
Fig. 3 is secondary rubber-wrapping structure figure of the present invention;
Fig. 4 is a LCD face frame synoptic diagram of the present invention;
Fig. 5 is a partial sectional view among Fig. 4;
Fig. 6 is a shell surface frame synoptic diagram of the present invention;
Fig. 7 is a waterproof plastic cement inside casing synoptic diagram of the present invention;
Fig. 8 is a ripples line test synoptic diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment: see also Fig. 3 to Fig. 7, a kind of LCD face frame secondary encapsulate waterproof construction, comprise plastic casing face frame 1 and be injected into one waterproof plastic cement inside casing 2 with it, waterproof plastic cement inside casing 2 distributes along the annular inside edge of plastic casing face frame 1 and is combined as a whole, and the Touch Screen 3 of waterproof plastic cement inside casing in LCD face frame extends and contact at the Touch Screen surface and form water proof structure.
See also Fig. 3, waterproof plastic cement inside casing 2 is made up of plastic cement main body 21 and the compound anti-water end (W.E.) 22 of plastic cement for one, the tip-angled shape that the anti-water end (W.E.) 22 of plastic cement extends to form to Touch Screen for plastic cement main body 21, and and the contact angle β of touch screen is between 50 ± 10 °, and wherein the plastic cement body thickness of waterproof plastic cement inside casing is at 1.5 ± 0.2mm.
See also Fig. 4, Fig. 6 and Fig. 7, plastic casing face frame 1 and waterproof plastic cement inside casing 2 cooperation places are provided with some reference columns 10 or pilot hole 20, the compactedness during with assurance plastic casing face frame and the post forming of waterproof plastic cement inside casing.
Among the present invention, waterproof plastic cement inside casing is the TPE material, and this TPE material hardness is injected on the plastic shell at 50-80 °, and plastic casing face frame material is the combination forming of ABS or ABS and PC.
A kind of LCD face frame secondary encapsulate waterproof technology, its method for making is as follows:
(1), the first secondary mould injects plastic shell face frame earlier, its material is ABS or ABS+PC, and the plastic casing face frame that injects is provided with some reference columns along the inside casing edge;
(2), again with the another one mould waterproof plastic cement inside casing is injected into plastic shell face frame and cooperates with reference column on it and make this face frame and Touch Screen form water proof structure, this waterproof plastic cement inside casing material: TPE is between hardness: 50-80 °.
See also Fig. 1, Fig. 2 and Fig. 3, three kinds of waterproof types contrast as following table 1:
After waterproof plastic cement inside casing of the present invention and plastic casing face frame and the touch screen assembling, water ripple phenomenon does not appear in the minimum 3kgf.cm of pressure criteria that touch screen shows viewed area, water ripple phenomenon does not appear in the minimum 5kgf.cm of the pressure criteria in frame plastic cement zone, see also Fig. 8,17 points that the present invention chooses on the figure carry out the test of ripples line, pressure is not found the ripples line from 8.6-8.9, concrete each point force value such as following table 2:
Annotate: the power that the kgf.cm representative is born in one centimetre of place is 1 kilogram.
Face frame of the present invention is directly injection-moulded in the shell inboard through post forming with the waterproof plastic cement, through waterproof test, can reach good waterproof effect, and detailed process is as follows:
A, test condition: will have board of the present invention and keep flat, Touch Screen fills water, quiet putting 100 minutes;
B, test result: the machine inside of tearing open finds no drainage, does not find that promptly water enters into device interior from Touch Screen and waterproof plastic cement, test OK!
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (7)
1. LCD face frame secondary encapsulate waterproof construction, it is characterized in that: comprise plastic casing face frame and be injected into the waterproof plastic cement inside casing of one with it, waterproof plastic cement inside casing distributes along the annular inside edge of plastic casing face frame and is combined as a whole, and the Touch Screen of waterproof plastic cement inside casing in LCD face frame extends and contact at the Touch Screen surface and form water proof structure.
2. LCD face frame secondary encapsulate waterproof construction according to claim 1, it is characterized in that: described waterproof plastic cement inside casing is made up of plastic cement main body and the compound anti-water end (W.E.) of plastic cement for one, the anti-water end (W.E.) of plastic cement is the tip-angled shape that the plastic cement main body extends to form to Touch Screen, and and the contact angle of touch screen between 50 ± 10 °.
3. LCD face frame secondary encapsulate waterproof construction according to claim 1 and 2, it is characterized in that: after described waterproof plastic cement inside casing and plastic casing face frame and the touch screen assembling, water ripple phenomenon does not appear in the minimum 3kgf.cm of pressure criteria that touch screen shows viewed area, water ripple phenomenon does not appear in the minimum 5kgf.cm of the pressure criteria in frame plastic cement zone, and wherein the plastic cement body thickness of waterproof plastic cement inside casing is at 1.5 ± 0.2mm.
4. LCD face frame secondary encapsulate waterproof construction according to claim 1, it is characterized in that: described plastic casing face frame and waterproof plastic cement inside casing cooperation place are provided with some reference columns or pilot hole, the compactedness during with assurance plastic casing face frame and the post forming of waterproof plastic cement inside casing.
5. LCD face frame secondary encapsulate waterproof construction according to claim 1 and 2, it is characterized in that: described waterproof plastic cement inside casing is the TPE material, this TPE material hardness is injected on the plastic shell at 50-80 °.
6. LCD face frame secondary encapsulate waterproof construction according to claim 1, it is characterized in that: described plastic casing face frame material is the combination forming of ABS or ABS and PC.
7. LCD face frame secondary encapsulate waterproof technology is characterized in that method for making is as follows:
(1), the first secondary mould injects plastic shell face frame earlier, its material is ABS or ABS+PC, and the plastic casing face frame that injects is provided with some reference columns along the inside casing edge;
(2), again with the another one mould waterproof plastic cement inside casing is injected into plastic shell face frame and cooperates with reference column on it and make this face frame and Touch Screen form water proof structure, this waterproof plastic cement inside casing material: TPE is between hardness: 50-80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010504355 CN101995685A (en) | 2010-10-09 | 2010-10-09 | Secondary encapsulated waterproof process and structure of liquid crystal display (LCD) face frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010504355 CN101995685A (en) | 2010-10-09 | 2010-10-09 | Secondary encapsulated waterproof process and structure of liquid crystal display (LCD) face frame |
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| CN101995685A true CN101995685A (en) | 2011-03-30 |
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| CN 201010504355 Pending CN101995685A (en) | 2010-10-09 | 2010-10-09 | Secondary encapsulated waterproof process and structure of liquid crystal display (LCD) face frame |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137608A (en) * | 2015-10-13 | 2015-12-09 | 宁波维真显示科技有限公司 | Planar/stereo mutual switching device used for LCD display screen |
| CN103957675B (en) * | 2014-03-31 | 2017-01-25 | 苏州佳世达电通有限公司 | Waterproof structure and display device |
| WO2023092354A1 (en) * | 2021-11-24 | 2023-06-01 | 广州视源电子科技股份有限公司 | Bezel of display device, and display device |
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| CN2888798Y (en) * | 2006-02-17 | 2007-04-11 | 鸿翊国际股份有限公司 | Fast-dismounting panel structure |
| CN101091174A (en) * | 2005-01-31 | 2007-12-19 | 蓝鸟软件株式会社 | Mobile terminal |
| CN101231420A (en) * | 2006-11-29 | 2008-07-30 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and method of fabricating thereof |
| CN201131097Y (en) * | 2007-12-24 | 2008-10-08 | 成都吉锐触摸技术股份有限公司 | Water-proof touch display |
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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091174A (en) * | 2005-01-31 | 2007-12-19 | 蓝鸟软件株式会社 | Mobile terminal |
| CN2888798Y (en) * | 2006-02-17 | 2007-04-11 | 鸿翊国际股份有限公司 | Fast-dismounting panel structure |
| CN101231420A (en) * | 2006-11-29 | 2008-07-30 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and method of fabricating thereof |
| CN201131097Y (en) * | 2007-12-24 | 2008-10-08 | 成都吉锐触摸技术股份有限公司 | Water-proof touch display |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957675B (en) * | 2014-03-31 | 2017-01-25 | 苏州佳世达电通有限公司 | Waterproof structure and display device |
| CN105137608A (en) * | 2015-10-13 | 2015-12-09 | 宁波维真显示科技有限公司 | Planar/stereo mutual switching device used for LCD display screen |
| WO2023092354A1 (en) * | 2021-11-24 | 2023-06-01 | 广州视源电子科技股份有限公司 | Bezel of display device, and display device |
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Application publication date: 20110330 |