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HCQS 3D In-Cell Touch LCD – Excellent Alternative
Touchscreen performance and efficiency remain key differentiators in smartphones. The choice of its design is a critical factor in a product’s ultimate success.
Let us first take a look at current touch and display integration technologies for iPhone, and then have a view of a new and innovative solution – 3D In-Cell Touch that HCQS exclusively developed for iPhone.
Out-Cell Touch Technology
It has been common to add the touch sensors as a separate or discrete overlay atop the display in a laminated panel stack-up (These designs are called “discrete” to emphasize the fact that the touch function exists separately as an overlay on the display.). With this design, the sensors are added either on a glass or in a dedicated sensor layer.
Designs with a separate sensor layer are known as Out-Cell Touch Technology, such as Glass-Glass (GG) and Glass-Film-Film(GFF), depending on whether the transmitting and receiving touch functions are implemented in one or two layers, respectively, of the sensor film or sensor glass.
Out-Cell Touch is a handy alternative for iPhone display replacement and has the proven low-risk advantages with short time-to-market and good price. It also has obvious disadvantages, however, such as making the panel stack-up thicker, dimmer, and slower.
In-Cell Touch Technology
Integrates the touch sensors directly into one or more layers in the display stack-up itself.
In-Cell technology removes the touch sensor substrate, by combining the liquid crystal and touch sensing elements into a single structure (The term Full In-Cell means that the transmitting and receiving touch sensor layers are both within the cell). Apple started implementing In-Cell Touch with iPhone 5 in 2012.
In-cell display technology combines the touch sensor layer and LCD cell into a single layer, allowing devices to be thinner and lighter.
3D In-Cell Touch Technology
3D, Display and Touch Integration
The new LCD panel incorporating the “3D in-cell touch” function is an exclusive development by HCQS, which combines the liquid crystal, touch sensing elements and 3D touch capacitive sensors into a single structure (3D Touch is a more sensitive version of Force Touch developed and introduced by Apple Inc. in 2015 and has been utilized in iPhone 6S and later models.).
3D In-Cell Touch reduces the thickness of the display panel by integrating the LCD, the touchscreen layer and the 3D capacitive sensor layer into a single unit, rather than stacking the three layers on top of one another. As a result, it reduces the panel’s thickness and weight, featuring an excellent touch response and precise calibration of the touch point.
Integrated Driver Controller IC (IDC)
Different from traditional multi-chip solutions, 3D In-cell Touch requires only one Integrated Driver Controller IC (IDC) to drive display, touch and 3D touch functions.
IDC solution features narrow module design and high signal-to-noise ratio. As a result, it maximizes touch accuracy and sensitivity performance at ultra-low power consumption – an excellent alternative display for iPhone.
Comparison
Features & Benefits – Lighter! Faster! Brighter!2
Integration makes a true difference. HCQS sole 3D In-Cell Touch LCD makes a brilliant alternative by addressing the growing needs for cost-effective high-performance smartphone applications with lower power consumption and compact structure.
Superb Touch Sensitivity
HCQS 3D In-Cell Touch LCD has superb touch performance. The thinner panel makes touch feedback more accurate and ensures outstanding response when the screen is touched by fingers.
Outstanding Visibility
Compared with external sensors, HCQS 3D In-Cell Touch LCD provides very good picture quality with high transmittance and low reflectivity. A thinner distance from the backlight to the display surface increases the brightness and color reproduction of the display.
Low Power Consumption
Without a shield from a discrete touch module, reduce the reflection and refraction, the LCD display is more penetrating and more power-effective.
Advanced IDC Features
3D In-Cell Touch requires only one Integrated Driver Controller IC (IDC) to perform display, touch and 3D touch functions simultaneously, enhancing power efficiency, brightness, color and contrast.
The 3D In-Cell iPhone 6SP and iPhone 7P LCD assemblies are now available to order from HCQS (We plan to apply 3D In-Cell Touch to more models in the near future). For update and more details, please feel free to contact HCQS sales representatives.
HCQS will continue to develop products that offer the best user experiences.
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