CN203179769U - Window panel of membrane switch - Google Patents
Window panel of membrane switch Download PDFInfo
- Publication number
- CN203179769U CN203179769U CN 201320100409 CN201320100409U CN203179769U CN 203179769 U CN203179769 U CN 203179769U CN 201320100409 CN201320100409 CN 201320100409 CN 201320100409 U CN201320100409 U CN 201320100409U CN 203179769 U CN203179769 U CN 203179769U
- Authority
- CN
- China
- Prior art keywords
- window area
- thin film
- oca glue
- panel
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a window panel of a membrane switch, which is composed of the following components: a panel, an OCA adhesive layer and a PC board. The panel comprises a window area and a non-window area. Two layers of shielding colors are printed on the back surface of the non-window area. The PC board is adhibited on the back surface of the window area through the OCA adhesive layer. The boundary of the PC board exceeds the boundary of the window area. The upper-layer shielding color is printed on the boundary of the window area, and the low-layer shielding color is printed to the boundary of the PC board. The window panel of the membrane switch with the structure has the following advantages: facilitating total elimination of the air bubbles between the panel and the PC board, preventing clearance between the panel and the PC board, preventing Newton rings, and improving product quality.
Description
Technical field
The utility model belongs to the membrane switch technology field, relates in particular to a kind of thin film switch form panel.
Background technology
According to customer requirement, the hardness that the PC plate strengthens form need be pasted in the face version form back of thin film switch.Transparent area version and the two-layer material transparent of PC plate are in direct contact with together, can have the air gap and produce color fringe, and this optical phenomena is Newton's ring (being commonly called as the rainbow line).
Optically, Newton's ring is a film interference phenomenon, is a kind of interference pattern of light, is some light and dark donuts.For example the convex surface with the very big convex lens of radius of curvature contacts with a flat glass, under daylight or when using white light, can see that contact point is a dim spot, is some light and dark colored annulus around it; And when shining with monochromatic light, then show as some light and dark monochromatic circles.The distance of these circles does not wait, with the increase of the distance of decentre point and narrow down gradually.They are to be interfered mutually and the interference fringe that forms by the light that reflects on the sphere and the plane.
The appearance of this phenomenon makes thin film switch form panel in the client use, and when being combined version transparent window place, back with equipment and thicken unintelligiblely, the chromatic colour striped occurs, and window transparency and the demonstration of product had a significant impact.
The utility model content
For this reason, technical problem to be solved in the utility model provides a kind of thin film switch form panel that can not can produce Newton's ring, to overcome the deficiency that prior art exists.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of thin film switch form panel, constituted by face version, OCA glue-line and PC plate, described version comprises window area and non-window area, the two-layer color of covering of described non-window area back up, described PC plate is pasted the back side of described window area by the OCA glue-line, described PC edges of boards circle exceed the border of described window area, it is characterized in that: color printing is covered to the border, window area in the upper strata, and color printing is covered to PC edges of boards circle in lower floor.
For realizing and other parts assembling of thin film switch that the described two-layer color below of covering is pasted with the face key.
In preferred implementation of the present utility model, it is the OCA glue of 3M8146-5 that described OCA glue-line is selected 3M company model for use.
The thickness of described OCA glue-line is 0.100-0.135mm, preferred 0.125mm.
Adopt technique scheme, thin film switch form panel light transmission of the present utility model is good, does not have the Newton's ring phenomenon, has greatly improved the product quality of thin film switch.
Description of drawings
Below in conjunction with accompanying drawing and concrete enforcement the utility model is elaborated:
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, thin film switch form panel of the present utility model is made of cover color 200, OCA glue-line 300, PC plate 400 and the face key 500 of face version 100, two-layer white.
Wherein, face version 100 has window area 101 at zone line, is non-window area 102 all around around window area 101.
Two-layerly cover the back side that color 200 is printed on non-window area 102.Wherein, the upper strata cover color printing to the window area 101 border, lower floor covers color and then only prints to the border of PC plate 400.
If only carry out the primary shield color printing, the non-window area translucent effect of face version is still very strong, is unfavorable for guaranteeing the pure of thin film switch assembling version front, back design and color, therefore need carry out the color of covering of twice printing white.
If it all is the borders of printing to face version window area that color is covered in twice printing.This just makes face version, the thickness that covers color, OCA glue position overlapped bigger, and then make and to have bigger gap between the window area of face version and the OCA glue, this is unfavorable for the extraction of the bubble of follow-up deaeration technology, and then it is unclean to cause bubble to discharge, and causes producing Newton's ring.In the utility model, the upper strata cover color printing to the window area 101 border, lower floor covers color and then only prints to the border of PC plate 400, so in the lap position, the color ink that covers that only has one deck between face version and the OCA glue, gap between the window area of face version and the OCA glue dwindles greatly so, and this bubble that is conducive to follow-up deaeration technology is extracted out.
The thickness of OCA glue-line is 0.125mm, and this was than thickness in the past thick (thickness of OCA glue-line was 0.05mm) in the past, and like this, the easier deaeration of the bubble that produces during applying is taken off totally.
It more than is exactly thin film switch form panel of the present utility model, adopt such structure, when being conducive to deaeration the bubble between face version and the PC plate is removed totally, make not have the gap between face version and the PC plate, thereby avoided the generation of Newton's ring, improved the quality of product.
Claims (5)
1. thin film switch form panel, constituted by face version, OCA glue-line and PC plate, described version comprises window area and non-window area, the two-layer color of covering of described non-window area back up, described PC plate is pasted the back side of described window area by the OCA glue-line, described PC edges of boards circle exceed the border of described window area, it is characterized in that: color printing is covered to the border, window area in the upper strata, and color printing is covered to PC edges of boards circle in lower floor.
2. thin film switch form panel according to claim 1 is characterized in that: the described two-layer color below of covering is pasted with the face key.
3. thin film switch form panel according to claim 1, it is characterized in that: it is the OCA glue of 3M8146-5 that described OCA glue-line is selected 3M company model for use.
4. according to the described thin film switch form of the arbitrary claim of claim 1 to 3 panel, it is characterized in that: the thickness of described OCA glue-line is 0.100-0.135mm.
5. thin film switch form panel according to claim 4, it is characterized in that: the thickness of described OCA glue-line is 0.125mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100409 CN203179769U (en) | 2013-03-05 | 2013-03-05 | Window panel of membrane switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100409 CN203179769U (en) | 2013-03-05 | 2013-03-05 | Window panel of membrane switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179769U true CN203179769U (en) | 2013-09-04 |
Family
ID=49076432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320100409 Expired - Fee Related CN203179769U (en) | 2013-03-05 | 2013-03-05 | Window panel of membrane switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203179769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519885A (en) * | 2018-12-29 | 2019-03-26 | 无锡市科虹标牌有限公司 | A kind of LED form and DIFFUSION TREATMENT method that diffusion is luminous |
| CN109545082A (en) * | 2018-12-29 | 2019-03-29 | 无锡市科虹标牌有限公司 | A kind of label window and its method of attaching for eliminating rainbow line phenomenon |
-
2013
- 2013-03-05 CN CN 201320100409 patent/CN203179769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519885A (en) * | 2018-12-29 | 2019-03-26 | 无锡市科虹标牌有限公司 | A kind of LED form and DIFFUSION TREATMENT method that diffusion is luminous |
| CN109545082A (en) * | 2018-12-29 | 2019-03-29 | 无锡市科虹标牌有限公司 | A kind of label window and its method of attaching for eliminating rainbow line phenomenon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20190305 |