iPhone X Incell screen No Touch Issues

Recently, many customers reported that after purchasing some cheap iPhone X LCDs from other suppliers, a certain batch of abnormal touch issues occurred, and they finally chose to come back to buy APLONG products with more stable quality.

The current iPhone X assembly on the market has 3 Display Panel Solutions (Flexible/Soft OLED, Hard OLED, and LCD).

Among these, the LCD solution has become the first choice for third-party repairs with lower prices and the most mature panel technology. 

According to APLONG Tech's investigation, it is found that the "touch problems" in this batch are all the products with chip(FPGA) and COG bonding technology among the LCD solutions. The following analysis will show you.

COG is the abbreviation of “Chip On Glass” (the display panel is glass), which corresponds to COF, abbr. “Chip On Flex”.

In nature, COP and COF have the same IC bonding process, except for different flex cable materials.

COG，the IC is on the display panel, so it occupies a certain area below the screen.

That is the reason why some iPhone X screens have a bigger border. COF is free of this problem.

Because some panel manufacturers pursue high-brightness displays excessively, they use high-power LED backlight lamp beads, which not only bring high display brightness but also bring more heat generation of LED lamp beads.

Because some panel manufacturers pursue high-brightness display excessively, they use high-power LED backlight lamp beads, which not only bring high display brightness, but also bring more heat generation of LED lamp beads.

If a screen assembly adopted COG technology, its driver IC is located directly above the backlight lamp beads.

It is inevitably affected by high temperature, which in turn affects the processing and transmission of display data.

At this time, adding The use of chip transcoding processing eventually causes the touch of the entire mobile phone display to be unable to synchronize with the display screen, and even the phenomenon of jumping and touching the screen.

After the above verification and analysis, we can know that the occurrence of the touch issue is mainly caused by the coexistence of three factors: Equipped with FPGA chip + COG Process + High-power LED Backlight Lamp beads.

For this, Aplong Tech recommends the following product with COF process, no FPGA chip, high brightness with proper power backlight lamp beads.

APLONG iPhone X In-cell LCD Screen

• 1. The display driver IC adopts the original bonding process COF (COP) to eliminate the problem of abnormal touch caused by overheating.
• 2. Adopt LTPS panel technology with the same specifications as iPhone 11, with thinner thickness and lower power consumption.
• 3. The use of nano-silver in-cell touch technology brings high touch sensitivity and up to 95% light transmittance, with higher brightness.
• 4. Up to 120% SRGB color gamut and 600nit peak brightness.
• 5. Support true tone and brightness auto-adjustment function.
• 6. Original grade perfect installation match.

Watch the video for more information.