The basic structure of the screen is composed of decryption and contrast
When it comes to screen technology, the evolution from IPS, AMOLED, and SLCD panels to today’s "OGS full-fit" screens has been quite a journey. Apple, in particular, has always emphasized high-end features like ultra-thinness, transparency, and a more immersive visual experience. This has led to the emergence of In-Cell and On-Cell technologies. In this article, I’ll break down OGS, In-Cell, and On-Cell screens in a simple and easy-to-understand way, so you can grasp the key differences without getting lost in technical jargon. To truly understand these screen technologies, it's essential to start with the basic structure of a display. From top to bottom, a typical screen consists of three main layers: the protective glass (also known as Cover Glass), the touch layer, and the display panel itself. The protective glass is usually made of Corning Gorilla Glass, which offers durability and clarity. The touch layer is typically composed of an ITO (indium tin oxide) film and an ITO glass substrate. The display panel, on the other hand, is more complex. It includes the color filter substrate (top glass), the liquid crystal layer, and the array substrate (bottom glass). Between the protective glass/touch layer and the display panel, there is usually a bonding layer that creates air gaps. However, with full-fit technology, this air gap is eliminated, resulting in a clearer, more transparent screen when lit and a darker, more vivid look when off. Traditional G/G and GFF screens follow the standard structure of protective glass + touch layer + display panel. The difference lies in the number of ITO layers. G/G uses one ITO glass and one ITO film, while GFF has two of each, making it thicker than G/G. Today, many manufacturers promote OGS, In-Cell, and On-Cell screens as premium options. These designs integrate some layers to make the screen thinner and lighter. The key difference lies in where the touch layer is placed. In OGS, the touch layer is combined with the protective glass, while in In-Cell and On-Cell, the touch layer is integrated directly into the display panel. This distinction is crucial for understanding how each screen performs. You might be wondering: what exactly sets In-Cell apart from On-Cell? The answer lies in where the ITO film is embedded. On-Cell places the ITO on the top glass of the display panel, as seen in Samsung’s flagship devices. In-Cell, on the other hand, embeds the ITO inside the display panel, beneath the glass substrate, as used in Apple’s iPhone 5. This subtle difference affects performance, cost, and design choices. Each screen type has its own strengths and weaknesses. For example, OGS tends to offer better transparency and visual clarity, but may suffer from touch sensitivity issues. In-Cell is the thinnest option, ideal for slim devices, but it can be more fragile. On-Cell, while slightly less thin, offers better impact resistance. Touch performance also varies—OGS often provides better sensitivity, but can be prone to false touches. In-Cell requires additional processing to reduce noise, making it more complex. From a manufacturing standpoint, In-Cell and On-Cell are more technically demanding and have historically had lower yields. However, as technology improves, these screens are now being produced at scale without major issues. Ultimately, the choice between OGS, In-Cell, and On-Cell depends on the balance of performance, cost, and design goals. Spot Lights Moving Head ,Led Moving Head Spot,Moving Head Spotlight,Spot Moving Head Light Guangzhou Cheng Wen Photoelectric Technology Co., Ltd. , https://www.cwledwall.com