FAQ
What is a VA LCD Glass Panel?
A VA LCD Glass Panel is a custom monochrome LCD glass using Vertical Alignment technology. It is mainly used for high-contrast segment display applications with a black background and white display content.
Is VA LCD glass the same as a complete LCD module?
No. VA LCD glass is the glass display element. A complete module may also include polarizers, LED backlight, driver circuit, PCB, connector, touch buttons, frame and front-panel structure.
What is VA LCD glass best used for?
VA LCD glass is best used for fixed segment display content requiring a black-background, high-contrast and premium front-panel appearance.
Is VA LCD suitable for Graphic LCD?
Usually no. VA LCD is mainly suitable for fixed segment content. For Graphic or Dot Matrix LCD, STN or FSTN should be reviewed.
Does VA LCD need backlight?
Most VA LCD designs use backlight, especially negative transmissive VA LCD with a black background and white display content.
Can VA LCD use transflective mode?
Selected transflective VA LCD projects can be reviewed, but most VA applications use negative transmissive mode with backlight.
Can VA LCD support touch buttons?
Yes. Touch-button structure can be reviewed for selected VA LCD glass and module projects.
Can VA LCD use multi-color printing?
Yes. Black mask, red, green, blue or multi-color silk printing can be reviewed according to the product design.
What is the difference between VA LCD and TN LCD?
TN is selected for simple and low-cost segment displays. VA is selected when the product requires a stronger black-background effect and more premium appearance.
What is the difference between VA LCD and HTN LCD?
HTN provides a practical contrast improvement over TN. VA provides a stronger black-panel style display effect and normally costs more.
What is the difference between VA LCD and STN or FSTN LCD?
STN and FSTN are better for flexible monochrome content such as Character, Dot Matrix and Graphic LCD. VA is mainly used for fixed high-contrast segment content.
What is the difference between VA LCD and OLED?
VA LCD is a liquid-crystal display that normally requires backlight. OLED is self-emissive. VA LCD is practical for fixed segment content, while OLED is used for pixel-based display content.
Can VA LCD glass use PIN connection?
Yes. PIN connection can be reviewed when the product PCB and assembly structure support direct or through-hole connection.
Can VA LCD glass use zebra or FPC connection?
Yes. Zebra and FPC structures can be reviewed according to the glass size, customer PCB, module thickness and assembly requirements.
What is static or multiplex driving?
Static driving controls each segment directly. Multiplex driving shares COM and SEG electrodes. Duty, bias, voltage, maximum COM and contrast must be reviewed together.
Can you replace an existing VA LCD glass?
Yes. Please provide the old LCD sample, photos, drawing, glass outline, viewing area, segment layout, pin details, backlight and product information.
What is the main limitation of VA LCD glass?
VA LCD is mainly suitable for fixed Segment LCD content. It is not recommended for complex Graphic LCD, Dot Matrix LCD, high-resolution pixels or full-color interfaces.
What information is required for quotation?
Please provide glass size, viewing area, segment layout, backlight, connection type, printing requirement, touch requirement, driving method, voltage, viewing direction, operating temperature, quantity, schedule and available drawings or samples.
