Share

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 – HO3™ 3D In-Cell Touch that HCQS exclusively developed for iPhone.

1. TECHNOLOGY DESCRIPTION

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. 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.

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. 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.

HO3™ 3D In-Cell Touch Technology

3D, Display and Touch Integration

The new LCD panel incorporating the “HO3 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.).

HO3™ 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.

Comparison

Integrated Driver Controller IC (IDC)

Different from traditional multi-chip solutions, HO3™ LCD requires only one Integrated Driver Controller IC (IDC) to drive display, touch and 3D touch functions.

HO3™ LCD Main Materials

HO3 LCD Structure Top Polarizer: Top Polarizing filter film with a vertical axis to horizontally polarize light as it enters.

Top Glass Substrate: Special glass substrate with ITO electrodes used for the color filter manufacturing process.

Color Filter: Color filter creates colors for an image on LCD. The color filter is comprised of red, green, and blue pigment and is aligned with a particular subpixel within the cell.

Liquid Crystal: Liquid crystals change orientation under an applied electric field and can thereby block or pass light. The liquid crystals in an LCD display are in a naturally twisted form.

Touch Sensor: In-Cell sensors use existing display layers to construct the touch sensor matrix

3D Capacitive Sensor: In-Cell sensors use existing display layers to construct the 3D touch capacitive sensor matrix.

Thin Film Transistor: TFTs are micro-switching transistors (and associated capacitors) that are arranged in a matrix on a glass substrate to control each picture element (or pixel).

Bottom Glass Substrate: Special glass substrate with ITO electrodes used for the thin film transistor (TFT) manufacturing process.

Bottom Polarizer: Bottom Polarizing filter film with a horizontal axis to vertically polarize light as it enters.

Backlight: Liquid crystals do not generate light of their own, so another means of providing light is required to allow the screen to be viewed. HO3 utilizes the light source located to the side of the screen.

2. FEATURES & BENEFITS – Lighter! Faster! Brighter!

Superb Touch Sensitivity HCQS HO3™ 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 HO3™ 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 HO3™ 3D In-Cell Touch LCD requires only one Integrated Driver Controller IC (IDC) to perform display, touch and 3D touch functions simultaneously, enhancing power efficiency, brightness, color and contrast

Built Excellent, Built to Last The HO3™ LCD screen has been thoughtfully designed and constructed from superior quality materials. SHARP LCD solution equipped with superior circuitry and components delivers premium product quality. Coupled with rigorous testing procedures, ensuring HO3™ LCD outperforms standard screens.

3. SPECIFICATION

LCD Mechanical Dimensions (Model: HO3™ for iPhone 6s Plus) Overall height (155.55mm), Overall width (75.38mm), Screen size (5.5-inch, diagonal)

LCD Mechanical Dimensions (Model: HO3™ for iPhone 7G) Overall height (135.86mm), Overall width (64.63mm), Screen size (4.7-inch, diagonal)

Function Tests

Installation Test

HO3 sample screen fits very well on iPhone housing.

No glue neither adhesive on edges of frame

Polarizer Test – Film

The polarizer test comparison between HO3 (3D In-Cell) screen and OEM screen indicates outstanding visibility with HO3 screen.

Polarizer Test – Sunglasses

Polarizer sunglasses test with HO3 LCD suggests extraordinary image performance even when you are wearing sunglasses.

Hydrophobic Effect Comparison

OEM screen has the best hydrophobicity, followed by HO3 (3D In-Cell) screen and ordinary China made replacement. The liquid on screens is water.

Display Test – Backlight Test

HO3 LCD has no issues of back light leakage and shadow.

Illumination uniformity: HO3 LCD has no clearly visible shadows, spots or corona.

Display Test – LCD Resolution

HO3 LCD has correct high resolution and has no pixilation.

Display Test – HO3 at different viewing angels

There are no obvious color changes from different angles. HO3 screen always keeps the same color.

Display Test – Color Temperature, Display Color

Power Consumption Test

4. WARRANTY

HO3 Lifetime Warranty

We provide lifetime warranty on all HO3 LCDs.

The initial judgment of the returned HO3 LCD is based on whether it is installed or not. HCQS warrants all uninstalled LCD with no physical damage.

HCQS will provide you a summary of the testing results. We ask that you review these results and send us your acknowledgement. Usually this process is completed within 2 weeks of receiving your screens.

We can issue product exchange, price refund or price deduction for the returned HO3 LCD after it is tested.

Installed HO3 LCD with minimal signs of wear including slight scratches enjoys warranty, except for:

Broken LCD

Water damage

Obvious physical damage

* HCQS reserves the right to change warranty terms and remedies without notice.

* HCQS HO3™ LCDs carry a lifetime warranty. Some HCQS product carries different warranty periods due to the nature of the product’s design, manufacture or expected use, the warranty applies from the date of purchase by the first customer.

How Can Customers Distinguish Our Products?

3D Capacitive Sensor Layer

(HO3 LCD has no 3D sensor layer in the backlight, as it is equipped in the LCD cell)

HO3 Logo Packaging



IC Controller

(HO3 LCD has a distinct IC controller and flexible circuits compared with CMR LCD)

Printed Information

Customer can easily distinguish HO3™ LCD screen by its logo-printed flex cable and metal plate, furthermore, through the serial numbers on both backlight and flex cable, customer can trace back the crucial batch information including date of manufacture, raw material origin and main suppliers.

Authenticity assured, built with HCQS® quality, reliability, and performance

HCQS® HO3™ Products are backed by HCQS design excellence and manufacturing expertise to deliver excellent screen quality with high levels of flexibility and reliability. Product is paired with LIFETIME standard warranties and robust technical and incident resolution support to ensure customer satisfaction.

5. SUMMARY

HCQS Exclusive HO3™ 3D In-Cell Touch LCD makes a brilliant alternative by addressing the growing needs for cost-effective high-performance smartphone applications with lower consumption and compact structure.

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.