A backlight is a form of illumination used in liquid crystal displays (LCDs). As LCDs do not produce light themselves, they need illumination (ambient light or a special light source) to produce a visible image. Backlights illuminate the LCD from the side or back of the display panel.
iPod touch 4 LCD screen is built with an internal light source which consists of several layers. The backlight is usually the first layer from the back. But in order to create screen images, a mechanism is needed to regulate the light intensity of the screen’s pixels. For this, light valves are used that vary the amount of light reaching the target by blocking its passage in some way. The most common element is a polarizing filter to polarize the light from the source in one of two transverse directions and then passing it through a switching polarizing filter, to block the path of undesirable light.
There can be several reasons for your iPod touch 4 backlight to malfunction resulting in dim or no backlight at all. It can be caused by components in the internal circuitry of your iPod or it can be the LCD screen itself. If your iPod displays any of the mentioned symptoms then it is time to get your device fixed by a professional.
• 3.5-inch (diagonal) LED-backlit widescreen
• 800:1 contrast ratio (typical)
• 500 cd/m2 max brightness (typical)
You need to repair your iPod touch 4 LCD Backlight if:
- The backlight is dim or dark.
- Flickers intermittently.
- Does not respond to ambient light.
- Display brightness is constant and cannot be adjusted.
What will be repaired or replaced:
We source the best OEM replacement parts, which is high in quality, durable and efficient. Our professional repair technicians will fix the iPod LCD Backlight quickly and efficiently.
What is included in the repair:
|Protection of your device from electro static charge during the repair process.|
|37 point pre quality check will be performed.|
|Your iPod touch 4 will be disassembled.|
|Troubleshooting the backlight problem.|
|Faulty iPod touch 4 LCD backlight components will be replaced with a new one.|
|A general service will be performed before assembly.|
|Your device will be assembled to its original shape.|
|37 point post quality check will be performed.|