VA TN LCD Display Module
A VA TN LCD Display Module refers to a type of liquid crystal display (LCD) that combines elements from both Vertical Alignment (VA) and Twisted Nematic (TN) technologies.
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Shenzhen Hongrui Optoelectronic Technology Co., Ltd., professional LCD display, LCM LCD module, LED backlight source, TP touch screen design development, manufacturing. With a group of high-quality, experienced engineering and technical personnel, to provide you with quality products and services.
The company is leading the middle and high grade TN, HTN, STN, VA, TFT products. At the same time, we provide drilling, grinding Angle and other special process products, supporting LCM, HEAT SEAL. The company's products are widely used in communication terminals (smart phones, tablet computers, etc.), household appliances, automotive electronics, digital products and other industries, and are exported to Hong Kong, Taiwan, Europe, America, Japan and South Korea and other regions and countries.
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A VA TN LCD Display Module refers to a type of liquid crystal display (LCD) that combines elements from both Vertical Alignment (VA) and Twisted Nematic (TN) technologies. These modules are designed to offer improved performance over traditional TN displays while also addressing some of the limitations found in VA panels.
The VA TN LCD Display Module utilizes the fast response time characteristic of TN panels, which makes it suitable for applications where quick refresh rates are essential, such as competitive gaming.
VA TN LCD Display Module represents an evolution in display technology, offering a compromise between the high performance and low cost of TN panels, and the superior image quality and viewing angles of VA panels.
Benefits of VA TN LCD Display Module
High Contrast Ratios
VA TN LCD display module boast high contrast ratios, resulting in deeper blacks and brighter whites compared to IPS displays. This makes them ideal for applications that require rich, vibrant images with excellent dynamic range, such as watching movies or playing video games.
Moderate Viewing Angles
VA TN LCD display module offer moderate viewing angles compared to IPS displays, meaning that image quality may degrade when viewed from extreme angles. However, the viewing angles of VA TN LCD display module are still superior to TN displays, making them suitable for applications where multiple users may be viewing the screen simultaneously.
Improved Response Times
While not as fast as TN displays, VA TN LCD display module generally offer better response times than IPS displays, reducing motion blur and ghosting effects in fast-moving scenes. This makes them suitable for gaming and multimedia applications where smooth motion is essential.
Color Accuracy
While not as accurate as IPS displays, VA TN LCD display module still offer good color reproduction and consistency, making them suitable for general-purpose use, including office work, web browsing, and multimedia consumption.
Types of VA TN LCD Display Module
VA (Vertical Alignment) LCD Display Modules
Standard VA Panels: These offer good contrast ratios and viewing angles compared to TN panels, but typically have slower response times.
MVA (Multi-domain Vertical Alignment) Panels: An enhancement of VA technology, MVA panels improve on viewing angles and contrast ratios by aligning the liquid crystals in multiple domains.
PVA (Patterned Vertical Alignment) Panels: Similar to MVA, PVA provides even better image quality and viewing angles. Samsung is known for developing this technology.
TN (Twisted Nematic) LCD Display Modules
Standard TN Panels: These are the most common type of LCD panels due to their low production cost and fast response times, which make them ideal for gaming.
Enhanced TN Panels: Some manufacturers improve upon standard TN panels by optimizing pixel design and backlighting to achieve better color reproduction and viewing angles.
Fast IPS (In-Plane Switching) Panels
While not strictly VA TN hybrids, fast IPS panels are designed to offer the fast response times associated with TN panels alongside the superior color and viewing angle qualities of IPS panels.
Application of VA TN LCD display module
Gaming devices: Their high refresh rates and the lowest response times reduce motion blur and ghosting, providing a competitive edge in fast-paced games even if it comes at the cost of viewing angles and color accuracy. VA TN LCD display module are commonly found in arcade games, portable gaming consoles, and e-tournament screens.
Consumer devices: VA TN LCD display module are a popular choice for budget-friendly consumer devices such as computers, mobile phones, e-readers, calculators, multimeters, printers, refrigerators, washers, and microwaves due to their lower cost than IPS and VA panels.
Low-power applications: VA TN LCD display module' low power consumption can be beneficial for extended battery life in IoT (Internet-of-Things) devices, wearable devices, and portable medical devices such as blood pressure monitors and glucometers.
Commercial/industrial equipment: TN screens are widely used in industrial control panels, CNC machines, robots, air quality sensors, building automation systems, oscilloscopes, aircraft panels, temperature gauges, and various commercial and industrial equipment and devices.
How VA TN LCD Display Modulework
A display is made up of millions of pixels. The quality of a display commonly refers to the number of pixels; A pixel is made up of three subpixels; a red, blue and green-commonly called RGB. When the subpixels in a pixel change color combinations, a different color can be produced. With all the pixels on a display working together, the display can make millions of different colors.
The way a pixel is controlled is different in each type of display; CRT, LED, LCD and newer types of displays all control pixels differently. In short, VA TN LCD Display Moduleare lit by a backlight, and pixels are switched on and off electronically while using liquid crystals to rotate polarized light. A polarizing glass filter is placed in front and behind all the pixels, the front filter is placed at 90 degrees. In between both filters are the liquid crystals, which can be electronically switched on and off.
VA TN LCD Display Moduleare made with either a passive matrix or an active matrix display grid. The active matrix LCD is also known as a thin film transistor (TFT) display. The passive matrix LCD has a grid of conductors with pixels located at each intersection in the grid. A current is sent across two conductors on the grid to control the light for any pixel. An active matrix has a transistor located at each pixel intersection, requiring less current to control the luminance of a pixel. For this reason, the current in an active matrix display can be switched on and off more frequently, improving the screen refresh time.
Process of VA TN LCD Display Module
Glass Substrate Preparation
The preparation of the glass substrate is the first stage in the manufacture of an VA TN LCD display module. The glass substrate is polished, cleaned, and then shaped and sized to the specifications.
Alignment Layer Deposition
The glass substrate is first prepared, and then an alignment material layer is applied. The liquid crystal molecules' orientation may be managed with the aid of the alignment layer.
Photo Mask and Exposure
The display pattern is then transferred to the alignment layer using a picture mask in the following step. The alignment layer and photo mask are lined up, and then the exposure procedure is utilized to transfer the pattern from the photo mask to the substrate.
Etching and Cleaning
After exposure, the alignment layer is not exposed is removed by etching.
Cell Assembly
Two glass substrates are put together with a tiny space between them during the cell manufacturing step. Liquid crystal material is used to close this gap, and the cell is then sealed to stop leaking.
Polarizer and Backlight Assembly
The top of the cell has a polarizer film connected, while the rear of the cell has a backlight. The backlight illuminates the display, while the polarizer film regulates the polarization of the light.
Quality Control and Testing during VA TN LCD display module Manufacturing
In order to guarantee the quality and dependability of VA TN LCD display modules, quality management and testing are essential. In order to make sure the VA TN LCD display modules satisfy the necessary requirements, a number of tests are carried out during the production process.
Optical Inspection
The precision of the pattern transfer and the alignment of the liquid crystal molecules are examined using optical inspection.
Electrical Testing
To confirm that the VA TN LCD display modules work properly and adhere to the necessary requirements, electrical testing is done.
Environmental Testing
The performance of the VA TN LCD display module under various environmental circumstances, such as temperature, humidity, and vibration, is evaluated by environmental testing.
The panel
The LCD panel is commonly known as glass. It is the most important core component of the LCD display module. The quality of a display mainly depends on the quality of the LCD panel, which directly affects the sensory experience of the screen. The LCD panel is generally produced as a large board, which is cut into small boards according to different sizes and becomes a core component.
The backlight
The backlight refers to the light source behind the LCD display module. Without the light source, the display screen will not have any display. The components of the backlight are composed of the light source, the light guide plate, the optical film, and other structural parts. The backlight can control the brightness according to the lamp beads and power consumption. If you need high brightness, you can change it according to the structure of the backlight. Of course, you cannot turn up the screen without a limit. The degree of its brightness is designed based on the internal structure and power consumption of the whole machine.
FPC
FPC flexible circuit board, which is a flexible circuit board with high wiring density, lightweight, thin thickness, and good bendability. The LCD display module provided by LCD screen company conducts electricity through the FPC to realize the display function. It is also an important component that is indispensable. Of course, FPC is not the only conductive component. Some large screens are energized through USB and other interfaces. FPC is a common conductive component for small and medium-sized LCD display modules.
The IC
IC is what everyone often says. A chip is a kind of miniature electronic device or component. It uses a certain process to interconnect the transistors, diodes, resistors, capacitors, and inductors, and other components and wiring required in a circuit to make a small piece. Or a few small pieces of semiconductor wafers or dielectric substrates, and then packaged in a package to become a miniature structure with the required circuit functions. With it, any function can be realized.
How Should VA TN LCD display module be Maintained
Avoid vibration
The VA TN LCD display module screen is very fragile, to avoid strong shock and vibration. Do not put pressure on the LCD screen or LCD screen back cover on the collision, or extrusion.
Avoid long use of the screen
Long-term work is not a good thing for LCD, if not in use, be sure to turn off the display power. Similarly, use wallpaper and screensavers with caution when using LCD. Most of the wallpaper and screen saver programs are colorful, light and shade changes are strong contrast, long time use will make LCD color distortion, thus affecting the life of the VA TN LCD display module screen. So, it's best to use a monochrome screen and cancel the screensaver when using an LCD.
Anti-electromagnetic interference
Both CRT and VA TN LCD display modules should stay away from objects with strong magnetic fields. The strong magnetic field around will generate extra voltage inside the display, which will affect the stability of the display voltage. Being exposed to a strong magnetic field for a long time can also cause color distortion, which can affect the display effect and life of LCDs.
Pay attention to moisture
Do not let any moisture into the VA TN LCD display module, such as indoor humidity high LCD internal may produce a condensation phenomenon, so LCD leakage and short circuit, serious will burn the display. For some southern areas with high humidity, the VA TN LCD display module screen can be placed in a warm and dry place, or the back of the LCD can be regularly baked with a low-power desk lamp, so as to let the moisture evaporate.
The Difference Between Tn, Ips And Va Lcd Screens
Everyday, we look at LCD display, TV, cell phone, monitor. It becomes a necessity in modern society. LCD panel is the most important part of an LCD display. It determines LCD screen's performance, e.g. brightness, contrast, color and viewing angle. Therefore, picking the right type of LCD panel is critical to your application.
There are three main types of LCD panels in the market, namely TN, IPS and VA.
Twisted Nematic (TN): The oldest type of LCD panel.
In Plane Switching (IPS): It is developed to solve the limitations of TN LCD. Another popular name for IPS panel is "plane to line switching" (LPS).
Vertical Alignment (VA): Also referred to as "super vertical alignment" (SVA) and "advanced multi-domain vertical alignment" (AMVA). They all share similar characteristics.
These names reflect the alignment of crystal molecules inside the LCD, and how they change when they are charged electrically. All liquid crystal displays change the alignment of liquid crystal molecules to work, but the manner in which they do so can drastically affect the image quality and response time. The easiest way to choose between them is to decide which attributes are most important to your project. It mainly depends on what you use your LCD display for, and your budget.
TN is the most mature technology in LCD panel manufacturing. When there is no voltage difference between the two transparent electrodes, liquid crystal molecules are twisted 90 degrees, in combination of upper and bottom polarizers, allows light to pass through LCD. As voltage applied, crystal molecules are untwisted and aligned to the same direction, blocking light.
In IPS panel, crystal molecules are parallel to the glass substrates at initial stage, LCD is off. When the in-plane electrodes is charged, crystal molecules are rotated, modifying light's direction. Which lights up the LCD display.
As its name suggests, VA panel's liquid crystals are aligned vertically without charged. When a voltage is applied, the molecules tilt and modifying light direction.
Our Factory
Shenzhen Hongrui Optoelectronic Technology Co., Ltd., professional LCD display, LCM LCD module, LED backlight source, TP touch screen design development, manufacturing. With a group of high-quality, experienced engineering and technical personnel, to provide you with quality products and services.
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