The integrated DMS under-screen camera display technology demonstrated this time can hide the camera at any position under the display screen, which can effectively avoid the increase in the complexity of the electronic system architecture in the cockpit caused by installing the camera separately on the center console or in front of the dashboard, or the increase in model modification costs caused by integrating the camera on the steering wheel.

▲ Tianma’s under-display camera products, picture source Tianma Microelectronics official account

Tianma Microelectronics said that the screen is equipped with Tianma’s original algorithm SOC built-in chip, which can not only recognize the driver’s face and track eye movement trajectory, but also recognize the driver’s behavior through deep learning, such as “closed eyes”, “yawn”, “abnormal head position”, “calling”, “smoking”, “not in the monitoring area” and other six behaviors that affect driving safety, and display corresponding warning messages on the screen to ensure driving safety.

In addition, Tianma demonstrated the industry’s first ultra-low reflective transparent Micro-LED display with a reflectivity as low as 4%. It claims a transmittance of over 65% and a PPI of 114.

▲ Tianma ultra-low anti-transparent Micro-LED display, image source Tianma Microelectronics public account

According to Tianma Microelectronics, Micro-LED, as a next-generation display technology, has many advantages such as high resolution, low response time, high integration, and high reliability, and can turn the front windshield of future cars into a more powerful human-machine interface. Through the special optical design, Tianma can effectively reduce the interference of ambient light, improve the clarity of the picture, reduce the reflection of the screen, make the image clearer and more realistic, and allow the driver to enjoy better visual effects.

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Tianma Microelectronics announced today that Tianma has exclusively provided a 7-inch 1080P full HD, 120Hz high refresh rate gaming screen for the ROG handheld, with a response speed of 7ms, and supports FreeSync Premium adaptive synchronization technology.

According to reports, the screen also has a brightness of 500nits, supports ten-point touch, and can achieve 1080P resolution and 60 frames of play.

In terms of hardware, the ROG handheld is equipped with AMD’s new Ryzen Z1 Extreme processor, supports super-resolution technologies such as AMD FSR and RSR, and is also equipped with 16GB LPDDR5 6400MHz dual-channel memory, 512GB PCIe 4.0 solid-state drive, and UHS-II microSD card slot.

In terms of software, the ROG handheld is equipped with a Windows 11 system and can support gaming platforms such as Steam, Epic Games, Xbox, and GOG Galaxy 2.0. At the same time, for handheld users, the ROG handheld launched the Altron Smart Control Center SE, which automatically enters when it is turned on.

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Tianma expects that the company will have the mass production capacity of folding screens and HTD screens in 2023, and will launch related products.

According to Shenzhen Tianma, the company’s products focus on phone display and vehicle display as its core business, IT display as a key business for rapid growth, and industrial products, horizontal market segments, non-display business and ecological expansion as value-added services.

Tianfeng Securities analyst Ming-Chi Kuo revealed that Apple may launch a newly designed HomePod with a 7-inch panel in 2024, with Tianma as the exclusive panel supplier. In this regard, Shenzhen Tianma responded on the investor interaction platform that the company maintains close cooperation with mainstream brand manufacturers in the display industry, and the specific customers and cooperation content involve commercial secrets, please understand.

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According to the official introduction, the Tianma R&D team integrated the optical system and the flexible TFT optical fingerprint sensor in the OLED panel through technological innovation to achieve perfect integration with the screen, without the need for additional optical imaging components and achieved an ultra-thin module thickness increment of less than 0.15mm.

According to the official, the OLED panel integrated fingerprint imaging system is used, that is, a layer of light-shielding pinhole array is added to the TFT film layer of the panel to realize high-precision imaging of the fingerprint area above the screen, which can be perfectly adapted to new OLED application technologies such as TPOT, CFOT, and HTD. It is equipped with a new generation of fingerprint-unlocking solutions for the ultra-thin flagship machine.

The flexible TFT optical fingerprint sensor independently developed by Tianma is as thin as less than 0.1mm, which is 80% thinner than the traditional silicon-based optical sensor; and it also has ultra-high resolution above 1000PPI, accurate output ultra-clear For fingerprint images, the exposure time is as low as 0.125s. According to the official, with the recognition algorithm of the whole machine, a zero-pause unlocking experience is realized.

According to the official, Tianma optical fingerprint recognition technology can effectively increase the area of the flexible TFT sensor through advanced manufacturing processes and then realize full-screen fingerprint recognition. Users can unlock it by touching any area of the screen. Compared with traditional silicon-based and glass-based sensors, Tianma’s flexible TFT sensor has better performance in terms of size, thickness, mechanical reliability, etc., and can support full-screen fingerprint recognition, taking a leading position in the industry. In addition, full-screen unlocking does not require a fixed unlocking position, which will improve the burn-in problem caused by the traditional optical fingerprint recognition technology that needs to frequently light up the fixed recognition area of ​​the OLED screen, and prolong the life of the OLED screen.

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Tianma 15.46-inch T-type touch integrated display show a picture

The Tianma T-shaped screen can be seen as formed by the ideal right-angle T-shaped display that produces both vertical and horizontal shape changes. Tianma’s 15.46-inch T-Screen has a resolution of 2000*2000 and a deformation rate of 50%, making it the world’s first LTPS in-vehicle display to achieve this deformation value. In addition, this center display also integrates TED inline touch technology, which supports 10-point touch, making the screen thinner and lighter while having more sensitive touch functions.

According to Tianma, the T-shaped design is to better fit the layout of the in-vehicle center display and button console to meet the needs of practical applications, and also to blend in more with the overall interior style of the car and enhance the interior design of the future sense of technology.

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▲ Photo from the official website of Tianma Microelectronics, the same below

The 28.5-inch curved integrated display, which spans the primary and secondary driver’s field of view, combines all the display tasks in the cabin in one place, combining COG technology with curved technology, integrated touch technology in the box and six other display technologies.

Tianma also displayed LCD antennas, 11.6-inch zoned dimming glass and other exhibits, among which the reflective LCD phased array antennas developed by Tianma in cooperation with customers mainly include three types of reflective 26GHz millimeter wave antennas and 200/400GHz terahertz LCD antennas, which are laid out for the millimeter wave band in the 5G Guardian field and the terahertz band in the future 6G technology, and the preliminary test results can meet the technical design requirements.

Tianma Microelectronics officials said, relying on a mature panel process, complete copper process automated production line transformation, can support large-scale mass production, low-cost liquid crystal antenna processing, micron-level thick copper process and liquid crystal antenna match and fit are very high, has completed a small batch of sample delivery for domestic key customers.

Finally, Tianma showcased its first VR display product, a 3.53-inch VR display with LTPS technology, a resolution of 3K x 3K, a PPI of 1200, a refresh rate of 120Hz, and a response time of 5~6ms.

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▲ Schematic diagram of Tianma invisible display technology solution

Tianma’s 9.0-inch Invisible Display vehicle center control display is equipped with this invisible display technology. All knob and switch interaction functions are hidden by the control panel and need to be realized by touching the screen and other actions. When you have a display requirement, “call the screen”, the screen will automatically light up and start the display work; when the screen display is not needed during driving, the display screen will automatically turn off. This allows the screen to be seamlessly integrated into the car interior panel when the screen is off so that the driver will not be disturbed by the information brought by the screen so that the driver can focus more on the road conditions and ensure the safety of the car.

▲ Illuminated state

▲ Unlit state

The technical principle of invisible display technology is to use LCD as a light source for displaying information, and let the light source pass through a special translucent decorative material attached to the glass cover to present the final “invisible display” effect. In order to achieve such a display effect with its own sense of technology, it is necessary to achieve seamless splicing of the display frame and decorative panel materials, while taking into account the display brightness and high contrast. This is a technical difficulty. On the one hand, it is necessary to accurately control the transmittance of translucent decorative materials, and on the other hand, it is necessary to optimize the light source of LCD display information. If the LCD information source is too bright, a bright area similar to a postcard will be generated on the panel, and the border of the picture will be marked, which will not only affect the visual experience but also bring hidden dangers to safe driving. If the brightness of the display light source is reduced, the amount of light passing through the decorative material may be reduced, resulting in a blurred image display.

This car display has good display capability, and its resolution remains as high as 1440×810 on the coating material; the cinema-level high brightness is maintained at ≥400 cd/m²; the ultra-high contrast ratio of more than 30000:1 supports enhanced light and shade Contrast and rich color expression.

Tianma said that the application of the invisible display technology solution is not only limited to the central control display but can be extended to the invisible door display to achieve an integrated display effect and enhance the user experience.

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Tianma’s CFOT technology is called Color Filter On Touch, which simply means that the R&D team has developed CFOT technology to replace the polarizer in the OLED screen structure.

In OLED screen construction, the polariser is an opaque plastic sheet that prevents light from entering the screen from outside and interfering with the display. Without the anti-reflective effect of the polariser, an OLED screen would reflect like a mirror. On the other hand, when the OLED screen self-illuminates through the polariser, the brightness of the light drops by more than 50%, resulting in high power consumption. By replacing the polariser with the CFOT technology developed by Tianma, the light transmission rate is officially increased by more than 30% and the power consumption of the panel is reduced by more than 25% (measured values).

Officially, with the breakthroughs in innovative technologies such as HTD and MLP, Tianma claims that with the integration of HTD+MLP+CFOT, the power consumption of the entire panel based on relevant application scenarios can be significantly reduced by over 30%. Consumers can enjoy the smooth experience of a 1Hz-120Hz intelligent dynamic refresh rate screen while relieving the worry of low power consumption.

In addition, another innovative advantage of Tianma’s CFOT technology is that it significantly improves the folding and curling performance of flexible screens. Commonly available flexible folding screens often suffer from peeling of the adhesive material underneath the polariser when repeatedly bent. By replacing the polariser with CFOT technology, the problem of adhesive peeling failure can be solved, while reducing one layer of plastic and one layer of adhesive, reducing the size of the screen stack, achieving the ultimate bending radius and passing the bending test over 200,000 times.

At SID2022, Tianma showcased its ultra-thin stacked screen with CFOT technology, which enables ultra-thin curling through the material and adhesive design adjustments, as well as curling more than 100,000 times.

In addition, Tianma’s CFOT technology has been studied to improve light transmission while further enhancing the colour gamut of the screen, allowing for the experience of super retina-quality natural colours. Officially, screens with CFOT technology have a 15% higher NTSC colour gamut than screens with polariser solutions, which is an industry-leading level. The colour display is more realistic and natural, with better colour purity and colour expression than traditional OLED screens.

Tianma’s new generation CFOT technology can be widely applied to foldable mobile phones, cars, notebooks and future curly flexible display products.

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According to the introduction, the HTD (Hybrid TFT Display) developed by Tianma’s R&D team is a panel technology that intelligently and dynamically adjusts the screen refresh rate, realizing a 6-frequency dynamic refresh mode from 1Hz to 120Hz. When the cell phone screen displays images, text and other low frame rate content, it can be automatically reduced to an ultra-low 1Hz refresh rate, thus reducing drive power consumption; in games, page scrolling and other occasions requiring a high frame rate, the screen can instantly power up and the interface operation is smooth, ensuring the ultimate dynamic display effect.

On top of HTD technology, Tianma has successfully integrated MLP (Micro Lens Panel) technology to further reduce screen power consumption. MLP technology changes the transmission path of light by adding a lens structure to each light-emitting pixel, and by introducing a high refractive index and high transmittance materials so that the originally dispersed light can be focused on the screen.

The combination of Tianma HTD+MLP low power technology is currently being introduced into mass production for verification.

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