Graphic Overlay
A new type of electronic keypad operating system that integrates key functions, indicator components, and front panels.
The graphic overlay is made of film materials with PET/PC, which using silkscreen printing technology to integrate graphics, text, and logos, and with different materials of adhesive.
It has certain functional words for household appliances, communication equipment, Instrumentation, industrial control and other fields.
Excellent Waterproof Process ( IP66 )
GoJGo can process the Graphic Overlay with waterproof performance, using 3M300LSE, and the waterproof grade can reaches IP66. It can be used in a humid environment, with a good water barrier properties, and it has an excellent material life.
Graphic Overlay Application Fields
The Graphic overlay integrates functional text, marks, trademarks, transparent windows and display. The design of the Graphic overlay can reflect the integration of product functions and original color ideas, which is unique.Thin Graphic overlay are widely used in intelligent electronic measuring instruments, medical instruments, computer control, CNC machine tools, communication terminal equipment, various industrial and household appliances products (such as copiers, refrigerators, microwave ovens, electric fans, washing machines, electronic game machines, etc.) .
The Comparison of PVC/PC/ PET
| PVC – Not supply | PC（Polycarbonate） | PET（Polyester） |
|---|---|---|
| Non-degradable | Degradable | Degradable |
| Not environmentally | Environmentally | Environmentally |
| Glossy / Transparent to opaque / Good light transmittance | Glossy / Transparent to opaque / Good light transmittance | Glossy / Transparent/ Good light transmittance |
| -10~60℃ | -30~110℃ | -20~120℃ |
| Thickness：0.175~0.5mm | Thickness：0.175~1.0mm | Thickness：0.125~0.2mm |
| It is stable to acids, alkalis and salts at room temperature. Good abrasion resistance, flame-retardant, self-extinguishing, noise reduction and shock absorption, and good electrical insulation. Poor thermal stability. 70% light transmittance, suitable for less demanding display panels, not suitable for button panels, because the texture is particularly soft, the buttons are easy to be broken by long-term use, the life is not long, and they are not resistant to aging, The material can not be degraded, not environmentally, can not withstand high temperature, It can be use at room temperature within 65 degrees. | Low water absorption, good dimensional stability, excellent bending, tensile and compressive strength, excellent heat resistance, cold resistance, electrical insulation and atmospheric aging resistance; Poor chemical resistance, poor fatigue resistance, prone to stress cracking. The general scope of application is the most extensive, except that it can meet the requirements of most membrane switch panels, Among them, the high light transmittance of glossy PC can meet the requirements of liquid crystal display windows PC matte, material, light transmittance 78%, material is softer than PET, can be bent at will, is not resistant to aging, can withstand weak acids and alkalis, and is also one of the most widely used materials on the market at this stage. (F150 is small matte), the emboseed feeling weaker than PET, the material is environmentally friendly and degradable, and it can meet export standards. | Good chemical resistance, insoluble in common organic solvents, not resistant to alkali. It has excellent mechanical properties, electrical properties, rigidity, hardness and maximum toughness of thermoplastics, low water absorption, excellent wear resistance and friction resistance, and high dimensional stability. The tensile strength is comparable to aluminum film, which is much higher than PC and PVC. F150 is imported PET frosted material with high temperature resistance and aging resistance. Even if it is frosted, the light transmittance of the material is still very high. The light transmittance of PET is 89%, making the color more vivid. It is the most ideal substrate for making membrane switch circuits. It is suitable for products with high environmental requirements or products with digital tubes. |
The thickness of the material :
The thickness of the plastic substrate is 0.25mm or below and is called a film. It is mainly used as the panel layer of the membrane switch. Various indicative patterns and text are printed on the back to indicate the operation area of the corresponding key switch. Depending on the size of the button, the material is thick, the touch force is increased, and the response is slow; the material is too thin, the feel is poor when touched, and the rebound is not obvious.
Thickness above 0.25mm is called plate, which is not suitable for 3D. It can be used as an indicative sign panel in the keyless operation area, and can also be used as a lining for membrane switches to increase its hardness.
Embossed Key Type:
GoJGo can provide various types of embossed-key as following picture.
The default is circle-embossed (the left 1st ). If you need other types, you can specify it in
the remarks or drawings when placing an order.
Flat Graphic Overlay:
The flat graphic overlay is flat plate, and the key position does not need to be embossed. Therefore, when you press the key, the hand-feel will be slightly weaker. This type does not need to make a embossed mould, just glue on the back of the panel.
Graphic Overlay with Embossed keys:
The buttons on the panel are embossed, which can accurately locate the position of the buttons and increase the three-dimensional sense of the product, and it can increase the formation of the buttons of the product, and the button feeling will be better.
Such products are mostly used in operation panels of machinery industry equipment. The transparent display window can clearly display the LCD screen below, and prevent dust from entering the device and causing damage to the device. It is easy to clean and can be wiped with a wet towel.
Instrument Panel with Special Opaque:
Use a thicker material, the whole is dominated by a blackground color, and most of the other colors are light-transmitting colors. The instrument panel has high requirements for lights and needs to be able to clearly see the light-transmitting characters in low-light environments;
Also the process is more complicated than the ordinary panel, and multiple channels of translucent ink need to be printed on the translucent, and multiple channels of shading ink are printed on other areas to prevent light diffusion and light leakage.
GoJGo has many years of experience in the production of such instrument panels, and the product rendering effect is very good, which has won the recognition and trust of customers. it is generally used in vehicles （automobiles, motorcycles, etc.) and civilian instrumentation equipments.
Inspection & Check, Membrane switch & Graphic overlay
1. Check the color: The contrast of colors. Due to ambient light and other reasons,it can not be directly compared with the real sample or computer pictures. It needs to be checked with the Pantone color card. The general colors can only be closer, couldn’t be same. GoJGo uses Pantone Formula Guide Coated
card. [Finding color numbers on https://www.pantone.com/color-finder
2. Shape inspection: Check the shape and internal slots and windows accordingly according to the product design drawings.
3. Appearance inspection: check the graphics of the panel layer, the logo text, etc, whether there are defects, omissions, stains, etc. Whether the window and press position are offset. If there is protective film attached to the window.
4. Check the peel strength of the adhesive: check whether the adhesive is the adhesive selected according to the order, and test the peel strength of the adhesive is not less than 8N/25mm.
Free PCB Request for Quotation (RFQ)
1. You can send email to us (tedchen163@yahoo.com). We will provide you with a
solution to make your production.
2. GoJGo receive your order,review the first,if there are questions,we will communicate with you
the first time and answer you about the lead time.
3. Our Engineering department will review this order with relevant departments,Produced in the best
process and in the shortest time.
4. Before shipment,we will talk with you about the shipping time and shipping method.
If you would like to customize your production type and place an order online, please click below to request a quotation.