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How much do you know about the touch screen monitor bonding process?
- May 28, 2018 -

Many students may understand the basics of the screen, such as the size and resolution, and you will find why the same size resolution does not seem the same. This is actually related to the screen's fitting process. List the most common lamination processes on the market.


The structure of the screen


From the technical point of view, the screen structure is divided into three layers, from top to bottom by the protective glass, touch screen, display screen composition. The current technology bonding is divided into two steps. The first one is to first fit the protective glass and the touch screen together, and then fit the display screen; the second is to first fit the touch screen and the display together, and then Adhesion with protective glass


OGS fit


OGS bonding is a layer structure, which is a technique of directly forming an ITO conductive film and a sensor on a protective glass, that is, directly adhering the protective glass and the touch screen together. This piece of glass also serves as both a protective glass and a touch sensor. effect.


The OGS has the following advantages: simple structure, light, thin, and good light transmission; but this process requires strong production process capabilities and technology, resulting in higher production costs, the current mobile phone using this bonding process are basically Is the flagship mobile phone.


InCell fit


Both InCell and OGS are two-layer structure. Different from InCell and OGS, the InCell is first to fit the touch screen and the display to the protective glass. The two technologies have different emphasis, but the display effect is basically the same. There is no difference. It is also the most promising two bonding technologies in the industry.


At present, Apple uses mainly InCell technology.


GFF full fit


GFF and OGS are two lamination technologies, but they differ in lamination process. The difference from OGS is that GFF is a 5-layer structure that is covered by a protective glass + touch screen + ITO conductive film X + ITO conductive film Y + display. Compared to OGS only 2-layer structure, GFF is very thick and transparent Light is not as good as OGS, but benefits from this technology are mature and cost lower than OGS.


Therefore, generally adopt this kind of technology is the middle and low end machine.


GFF is not full fit


GFF non-full-fitting is not the same as GFF full-fitting. It does not belong to full-fitting but only to the frame, that is, there is a layer of air between the display screen and the touch screen. It is the earliest lamination process, and of course it is also The most backward.


At present, this type of laminating process is generally used for low-end machines and cottage machines, commonly known as large gray screens.