Aiming at cost-effective market, iPhone On-cell aftermarket screen has launched. It tries to gain some market share from in-cell and out-cell CMR screens. According to the market feedback, although intrigued by the fancy AD words, the fear of “too-good-to-be-true” keeps down customers’ desire to try the on-cell samples. So, is the worry necessary?
The following content will discuss the 3 CMR screens with different technology solutions from the brief technology introduction to screen comparison.
Brief Introduction for In-cell, Out-cell and On-cell
The functional structure of the iPhone assembly screen can be divided into three parts, protective glass, a touch sensor layer, and a liquid crystal display. The in-cell technology integrated touch sensor layer into the LCD cell; and the on-cell technology equipped the touch sensor on the upper glass substrate of the liquid crystal panel; the out-cell are designed with a separate sensor layer which is also known as the “Add-on Type”.
|Sensor Layer Embedding||Integrated to film/glass substrate/cover glass||Inside LCD cell||Between top color filter and polarizer of LCD|
|Glass Substrate (Pieces)||3 or 4||3||3|
Out-cell < On-cell < In-cell
|Application||CMR Screen||HO3 Screen, OEM Screen (iP5 and Above)||CMR Screen|
CMR Screen Comparison
|Out-cell CMR||In-cell CMR
|IC||Compatible IC Solution||TDDI IC Solution||Compatible IC Solution|
|Thickness||Out-cell CMR < On-cell CMR < In-cell CMR|
|Advantages||Low cost||High installation fitness
High installation fitness
High power consuming
Poor touch stability
|Medium cost (40% OEM)||
Viewing angle problem
Poor touch stability
In-cell Screen (HO3 Exclusive) provides the customer the closest Original screen experience. In-cell technology equipped with TDDI IC solution makes the HO3 In-cell screen a qualified OEM alternative. On-cell iPhone screen is expected to have better performance than Out-cell screen because of thin overall thickness and high installation fitness.
The in-cell and out-cell technologies are quite mature solutions for producing aftermarket iPhone screens. But the On-cell solution for iPhone screen is recently developed and released to the market. The level of maturity of the other application is still low at a stage.
According to the market feedback, the listed are the most notable problems:
- The screen shows notable color shifts when tilting the phone at a certain angle.
- Pressure marks.
- Poor touch stability on four corners: Touch function fails or too sensitive resulting in “ghost touch” phenomenon and fine dust, sweat, moisture can trigger the “mis operation”.
At the end of 2018, some suppliers tried to sell on-cell iPhone screens as a fake in-cell screen to gain more market. Here is the comparison testing video for HO3 in-cell screen and on-cell screen.
In general, in-cell will be the fisrt choice for better quality and stability, while On-cell and Out-cell have price advantages. So, stick to In-cell and Out-cell solutions or tend to try out the new On-cell screen?
Do you have other expectations for iPhone CMR screen industry? Is it possible to use OLEDs on mobile phones of LCD screen series in the future? Comment below if you have any ideas.