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Causes of Mura: 1. LCD screen: Mura is caused by a mismatch between the motherboard drive voltage and the LCD drive voltage design, or the liquid crystal in the LCD is subject to ion accumulation, resulting in electric field charge polarization. This polarization is usually caused by the use of lower-quality liquid crystal materials. 2. OLED screen: Mura is related to the lifespan and luminous efficiency of RGB luminescent materials, especially blue luminescent materials, which have always been a challenge in OLED research and development. OLED screens are highly sensitive to water vapor and oxygen, which may cause screen degradation or failure once exposed. OLED standards: A universal standard for OLED screens is T95, which represents the time it takes for brightness to decay to 95% at maximum manual brightness. For example, Apple requires that its OLED screens be free from mura or aging problems within 500 hours. To prevent mura issue, we recommend taking the following steps: 1. Avoid displaying static images for long periods: Please avoid displaying the same image on the screen for a long time, particularly high-contrast images. 2. Use dynamic screensavers: Regularly using dynamic screensavers can help reduce mura issues. 3. Adjust the screen brightness: Do not use maximum brightness for extended periods. Appropriately reducing screen brightness can extend screen life. 4. Ambient temperature: Avoid using the screen in extremely hot or cold environments, as temperature fluctuations may exacerbate mura problems. We are confident that these suggestions can help optimize the use of your screen and reduce the occurrence of mura problems. If you have any further questions or need additional help, please do not hesitate to contact us. We are here to assist you.

The basic structure of the touch screen is divided into three layers: protective glass, touch layer, and display panel. When you look at your mobile phone screen, have you ever thought about how the three-layer structure of the screen fits together? There are two types of touch screen lamination technologies: frame lamination and full lamination. Frame lamination(Air bonding) Double-sided tape is used to fix the four sides between the touch screen and the display. As shown in the figure below, the advantages of Air bonding are low technical difficulty and low cost. The disadvantage is that there is an air layer between the display and the touch screen bonded using double-sided tape, which will greatly reduce the display effect after light is refracted. Full lamination(Optical bonding) The touch screen and display are seamlessly bonded using water glue（LOCA） or optical glue(OCA) As shown in the figure below, there is no air between the screens with full lamination technology, which can greatly reduce light reflection, reduce light loss, and thereby increase brightness. However, the investment cost of using glue for bonding is higher and rework is more difficult. Comparison of two laminating processes Both lamination processes have their own advantages and disadvantages, but from a comprehensive evaluation from the perspectives of cost, display effect, maintenance, etc., the full lamination process is the main development trend of the current lamination process. On the one hand, the full lamination process better bonds the gaps between the layers, reducing the probability of air and dust entering; on the other hand, the full lamination technology removes the air between the screens, which can greatly reduce the reflection and loss of light, making the picture more beautiful. More transparent; in addition, the full lamination process is thinner and has better restoration when displaying the all-black effect.  

Now most customer will choose ILITEK touch controller for PCAP Touch screen project.Sometime they are confuse how to choose the best one.Today we shall  show you some tips. For Small size: up to 10.1” ILI2117A/2118A: ILI2117A(41ch) can be used in up to 7” ILI2118A(49ch) can be used in up to 10.1” Can support 2mm thickness cover glass, 2mm thickness Gloves touch Can support CS 10V, and waterproof touch   ILI2130/2131: ILI2130(47ch) can be used in up to 10.1” ILI2131(58ch) can be used up to 12.1” Can support VTx=10V, I2C interface. -40 to 85 degree Can support CS 10V, 8mm thickness Cover glass , waterproof touch   ILI2712 TQFP(72ch) Can support up to 12.3” Can support AECQ-100 ,-40 to 105 degree Can support CS 10V, 10mm Thickness Cover glass ,Waterproof touch   ILI2520/ILI2521 ILI2520(65ch) can be used in up to 15.6” ILI2521(110ch) can be used in up to 23.8” Can support VTx=15V, USB I2C interface, -40 to 85 degree Can support CS 10V, 10mm thickness Cover glass, Waterproof touch   ILI2520A/2521A Can support up to 12.3”,I2C USB interface, -40 to 85 degree Can Support CS 10V,10mm thickness cover glass, waterproof touch Can support active pen(Microsoft& AES)   ILI2510/ILI2511 ILI2511(65ch) up to 15.6” ILI2510(99ch) up to 21.5” Can support CS 10V,10mm thickness Cover glass,waterproof touch   ILI2322/2323 ILI2322(140ch) can be used in up to 32” ILI2323(170ch) can be used in up to 43” Can support VTx=15V, USB I2C interface, -40 to 85 degree Can support CS 10V, 10mm thickness Cover glass, Waterproof touch ILI2322A/2323A Can support USB I2C interface, -40 to 85 degree Can support CS 10V, 10mm thickness Cover glass, Waterproof touch Can support active pen(Microsoft& AES)   ILI2312/2315/2325 ILI2312(126ch) up to 27” ILI2315(154ch) up to 32” ILI2325,cascaded up to 85” Can support CS 10V, 8mm thickness Cover glass, Waterproof touch   ILI2316/2326 ILI2316(220ch) 1-chip up to 65” ILI2326, cascaded up to 110” Can support VTx=30V, USB I2C interface, -40 to 85 degree Can support CS 10V, 10mm thickness Cover glass, Waterproof touch   ILI2316/2326A Can support USB I2C interface, -40 to 85 degree Can support active pen(Microsoft& AES)   Now are you clearly that how to choose best ILITEK touch controller for your project,right?  Please contact with us directly if you have related project we may help. We will give you the professional solution.