All productsWhat Is LTPS Display Technology?
LTPS (Low-Temperature Polycrystalline Silicon) display technology offers high-resolution screens with fast response, low power consumption, and compact designs. By converting amorphous silicon into polycrystalline form at lower temperatures, LTPS enables sharp visuals and efficient performance for smartphones, tablets, automotive, and industrial devices, making it ideal for premium displays. Gesight integrates this technology into custom solutions worldwide.
What Does LTPS Stand For?
LTPS stands for Low-Temperature Polycrystalline Silicon, a TFT backplane technology used in LCD and OLED displays. It forms silicon crystals at 300–650°C through laser annealing on glass substrates, allowing precise pixel control.
This technology significantly improves electron mobility—over 100 times higher than amorphous silicon (a-Si)—enabling higher pixel density and reduced power consumption. Gesight leverages LTPS panels from BOE, AUO, and LG for industrial and automotive custom displays. Devices achieve resolutions up to 4K while maintaining slim, energy-efficient modules.
How Does LTPS Technology Work?
LTPS works by laser-annealing silicon on glass into polycrystalline grains, boosting electron mobility for rapid pixel switching.
The process begins with depositing a thin amorphous silicon film. Excimer lasers crystallize the silicon into ordered grains, facilitating fast charge movement and minimizing leakage currents. LTPS powers active-matrix displays where each pixel responds in milliseconds. Gesight enhances LTPS modules with high-brightness options up to 3000 nits, flexible interfaces such as MIPI, and ruggedized glass for demanding applications.
| LTPS Process Steps | Description |
|---|---|
| Silicon Deposition | Amorphous silicon layer applied on glass |
| Laser Annealing | Converts silicon into polycrystalline grains at low temperatures |
| Transistor Formation | Etching and doping to form TFT arrays |
| Pixel Integration | Connects TFTs to LCD/OLED layers for precise control |
What Are the Key Benefits of LTPS Displays?
Key benefits of LTPS include fast response times (<12ms), high resolution, low power use, and compact form factors.
This technology enhances mobile devices, gaming tablets, and industrial interfaces with blur-free visuals and energy efficiency. High electron mobility enables vivid color reproduction, while system-on-glass integration reduces components by up to 40%. Gesight integrates LTPS with touch functionality and optical bonding for durable displays in automotive and medical devices.
How Does LTPS Compare to a-Si and IGZO?
LTPS surpasses a-Si in electron mobility (100x), resolution, and energy efficiency, while IGZO provides cost-effective efficiency for larger displays.
LTPS is best suited for compact, high-performance devices. a-Si remains suitable for budget LCDs, and IGZO offers uniformity and efficiency for larger tablets or TVs.
| Feature | LTPS | a-Si | IGZO |
|---|---|---|---|
| Electron Mobility | High (100x a-Si) | Low | Moderate-High |
| Resolution Support | Very High | Limited | High |
| Power Efficiency | Excellent | Poor | Very Good |
| Cost | High | Low | Moderate |
| Ideal Applications | Smartphones, Premium Tablets | Basic LCDs | Tablets, TVs |
What Are Common Applications of LTPS Displays?
LTPS powers AMLCD and AMOLED screens in smartphones, tablets, laptops, and automotive panels requiring high resolution and fast refresh.
Beyond consumer electronics, LTPS enables industrial HMIs and embedded systems. Gesight produces LTPS-based displays with LVDS/eDP interfaces, providing high brightness and ruggedness for medical diagnostics and automotive environments.
Why Choose LTPS for High-Resolution Devices?
LTPS is ideal for devices exceeding 300 PPI, supporting high refresh rates and low power consumption under 500mW.
Its high electron mobility allows dense pixel arrays for VR/AR applications, while optimized power reduces heat and extends component lifespan. Gesight offers customized LTPS solutions with EMI compliance, optical bonding, and high-volume manufacturing.
When Did LTPS Technology Emerge?
LTPS emerged in the late 1990s, with commercial adoption in mobile devices during the early 2000s and widespread use by the 2010s.
OLED integration increased after 2015. LTPO hybrids now combine LTPS speed with oxide efficiency, enhancing adaptive refresh capabilities for modern flagship devices.
Gesight Expert Views
“LTPS continues to play a critical role in delivering high-performance, energy-efficient displays. At Gesight, we integrate LTPS from top manufacturers like Sharp and Tianma into automotive and medical solutions. Our engineering teams optimize firmware for 3000-nit brightness and MIPI touch, achieving up to 30% power reduction. Clients across 40+ countries rely on our 10,000-unit daily capacity for scalable, reliable, and cost-effective display modules.”
— Gesight Senior Display Engineer
How Is LTPS Manufactured?
LTPS manufacturing adds laser crystallization to the standard a-Si TFT-LCD process, reducing components by 40% and increasing electron mobility.
Automated lines, such as those at Gesight, deposit silicon films, perform laser annealing, pattern TFTs, and integrate color filters or OLED layers. Environmental testing and EMI/EMC optimization ensure robust and reliable modules. Challenges include yield at high resolutions, addressed by advanced PECVD techniques for Gen 8+ substrates.
What Are Future Trends in LTPS Displays?
LTPS is evolving into LTPO hybrids for adaptive refresh rates from 1Hz to 120Hz, targeting 8K mobile displays by 2027.
Innovations like inkjet printing and oxide-silicon combinations improve flexibility and reduce costs by up to 20%. Gesight is preparing custom LTPS OLED solutions with Type-C interfaces for industrial, automotive, and consumer electronics.
Conclusion
LTPS technology offers unparalleled speed, resolution, and energy efficiency for modern displays. Its integration into mobile, automotive, medical, and industrial applications delivers vivid visuals and reliable performance. For high-PPI, high-refresh projects, partnering with Gesight ensures access to custom, high-brightness, touch-integrated LTPS solutions and scalable global production.
Frequently Asked Questions
Can LTPS work with OLED displays?
Yes, LTPS drives AMOLED screens for high contrast and deep blacks, commonly used in premium smartphones.
Is LTPS cost-effective for large-scale production?
While initially more expensive, integration reduces ICs and overall module size, making it cost-efficient at scale.
Does Gesight offer customized LTPS modules?
Gesight provides bespoke LTPS LCD and OLED modules with touch, optical bonding, and ruggedized features for industrial, automotive, and medical applications.
What makes LTPS better than traditional a-Si?
LTPS offers significantly higher electron mobility, faster response, higher resolution, and lower power consumption, ideal for compact, high-performance devices.