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Item | Standard Value | Unit |
Display format | 240 * RGB * 320 | pixel |
Outline Dimension | 50（W）* 69.20（H） * 2.3+-0.1(T) | mm |
LCD Size | 46.20*46.75 | |
Display area | 43.20*57.60 | mm |
Pixel size | 0.180*0.180 | mm |
display mode | Normal Black | |
Pixel component | R.G.B Stripe | |
visual angle | 12 o’clock | |
LCD MODEL | a-Si TFT | |
Arrangement arrangement | RGB |
Item | Symbol | Specification | Unit | ||
Min | Typ | Max | |||
TFT gate on voltage | VGH | 14 | 15 | 16 | V |
TFT gate off voltage | VGL | -12 | -11 | -10 | V |
TFT common electrode Voltage | Vcom | -2 | - | 0 | V |
Product pictures
2.8'' TFT LCD Display
Production Field：
Packaging & Shipping:
Packing details:(Packing method will depends on the quantity and shipment way.)
******************************************************************************************************************
The Production Process of OLED Screen: OLED Module
1.Encapsulation:
To protect the delicate organic layers from environmental factors like moisture and oxygen, the OLED module undergoes encapsulation. Encapsulation techniques involve sealing the display with a barrier layer that prevents the entry of harmful elements. Common methods include thin-film encapsulation (TFE) or encapsulation using glass or plastic covers.
2.Color Filters and Polarizers:
In some OLED displays, color filters and polarizers are added to enhance color accuracy and optimize viewing angles. Color filters selectively transmit or absorb specific wavelengths of light, resulting in vibrant and accurate colors. Polarizers are used to control the direction of light, improving contrast and reducing glare.
3.TFT Backplane Integration:
Thin-Film Transistor (TFT) backplanes are integrated into the OLED module to control the individual pixels' activation and brightness. TFTs are typically fabricated using amorphous silicon (a-Si) or low-temperature polysilicon (LTPS) technology. These transistors act as switches, allowing electrical signals to control each pixel's illumination.
4.Testing and Quality Control:
After the OLED module is assembled, it undergoes rigorous testing and quality control procedures. These tests ensure that each pixel is functioning correctly, the color accuracy meets industry standards, and there are no manufacturing defects. Various inspection techniques, such as visual inspection, electrical testing, and optical measurements, are employed to ensure the highest quality standards are met.
5.Organic Light-Emitting Diode (OLED)
OLED technology represents a significant departure from LCD and TFT displays. Instead of using a backlight, OLED panels generate light directly from each individual pixel. This self-emissive property allows for true blacks and vibrant colors, resulting in exceptional contrast ratios and image quality.
OLED displays are renowned for their thinness, flexibility, and energy efficiency. They can be found in high-end smartphones, televisions, and wearable devices. OLED technology also offers wider viewing angles, faster response times, and the potential for curved or foldable displays. However, OLED panels are generally more expensive to produce and may suffer from issues like burn-in over prolonged usage.
Conclusion: LCD, TFT, and OLED are three distinct display technologies, each with its own set of advantages and limitations. LCDs provide excellent color reproduction and wide viewing angles, while TFTs offer improved performance and sharper images. OLEDs, on the other hand, provide exceptional contrast ratios and vibrant colors, along with flexibility and energy efficiency.
Understanding these differences is crucial when choosing a display for a specific application. Whether it's a television, computer monitor, or smartphone, knowing the unique characteristics of LCD, TFT, and OLED technologies will help users make informed decisions and ensure an optimal viewing experience.
Item | Standard Value | Unit |
Display format | 240 * RGB * 320 | pixel |
Outline Dimension | 50（W）* 69.20（H） * 2.3+-0.1(T) | mm |
LCD Size | 46.20*46.75 | |
Display area | 43.20*57.60 | mm |
Pixel size | 0.180*0.180 | mm |
display mode | Normal Black | |
Pixel component | R.G.B Stripe | |
visual angle | 12 o’clock | |
LCD MODEL | a-Si TFT | |
Arrangement arrangement | RGB |
Item | Symbol | Specification | Unit | ||
Min | Typ | Max | |||
TFT gate on voltage | VGH | 14 | 15 | 16 | V |
TFT gate off voltage | VGL | -12 | -11 | -10 | V |
TFT common electrode Voltage | Vcom | -2 | - | 0 | V |
Product pictures
2.8'' TFT LCD Display
Production Field：
Packaging & Shipping:
Packing details:(Packing method will depends on the quantity and shipment way.)
******************************************************************************************************************
The Production Process of OLED Screen: OLED Module
1.Encapsulation:
To protect the delicate organic layers from environmental factors like moisture and oxygen, the OLED module undergoes encapsulation. Encapsulation techniques involve sealing the display with a barrier layer that prevents the entry of harmful elements. Common methods include thin-film encapsulation (TFE) or encapsulation using glass or plastic covers.
2.Color Filters and Polarizers:
In some OLED displays, color filters and polarizers are added to enhance color accuracy and optimize viewing angles. Color filters selectively transmit or absorb specific wavelengths of light, resulting in vibrant and accurate colors. Polarizers are used to control the direction of light, improving contrast and reducing glare.
3.TFT Backplane Integration:
Thin-Film Transistor (TFT) backplanes are integrated into the OLED module to control the individual pixels' activation and brightness. TFTs are typically fabricated using amorphous silicon (a-Si) or low-temperature polysilicon (LTPS) technology. These transistors act as switches, allowing electrical signals to control each pixel's illumination.
4.Testing and Quality Control:
After the OLED module is assembled, it undergoes rigorous testing and quality control procedures. These tests ensure that each pixel is functioning correctly, the color accuracy meets industry standards, and there are no manufacturing defects. Various inspection techniques, such as visual inspection, electrical testing, and optical measurements, are employed to ensure the highest quality standards are met.
5.Organic Light-Emitting Diode (OLED)
OLED technology represents a significant departure from LCD and TFT displays. Instead of using a backlight, OLED panels generate light directly from each individual pixel. This self-emissive property allows for true blacks and vibrant colors, resulting in exceptional contrast ratios and image quality.
OLED displays are renowned for their thinness, flexibility, and energy efficiency. They can be found in high-end smartphones, televisions, and wearable devices. OLED technology also offers wider viewing angles, faster response times, and the potential for curved or foldable displays. However, OLED panels are generally more expensive to produce and may suffer from issues like burn-in over prolonged usage.
Conclusion: LCD, TFT, and OLED are three distinct display technologies, each with its own set of advantages and limitations. LCDs provide excellent color reproduction and wide viewing angles, while TFTs offer improved performance and sharper images. OLEDs, on the other hand, provide exceptional contrast ratios and vibrant colors, along with flexibility and energy efficiency.
Understanding these differences is crucial when choosing a display for a specific application. Whether it's a television, computer monitor, or smartphone, knowing the unique characteristics of LCD, TFT, and OLED technologies will help users make informed decisions and ensure an optimal viewing experience.
