Custom Displays_

Pin Terminal

It is used extensively for glass LCD displays and COG LCDs. The conductive metal pins are connected in such a way that they contact the polymer coated spots on the windscreen or rear window. The connection points of the pins are fixed with adhesive glue.

Elastomers Silicon Strips

This technology is extensively used in COB LCD displays. The layered conductive and insulating silicone laminated strip provides power transmission between the terminals and the PCB and the conductive polymer paths on the LCD glass. In this type of Displays, the glass LCD is mounted on the PCB with a metal or plastic frame.

Heat Seals

This terminal assembly is preferred by high-volume manufacturers since it requires thermal mounting expertise. Conductive carbon ribbon is connect to the surface of PCB and the conductive polymer terminals on LCD by heat treatment. Although the cost of production is cheaper, its use is reduced due to its high wastage.

FPC (FLEX Cable)

It is highly preferred for COG(Chip on Glass) LCDs. The film cable connected on Chip positioned on LCD Glass(COG). FPC cable connect to mainboard with ZIF connectors. It provides ease of use in production. However, due to high COG drive IC costs, they are not used widely. Nowadays this terminal type only used on graphic LCD Displays and TFT displays.

Reflective

This polarization type has no backlight option. LCD Display can be read by ambient light or external light source. Reflective film fully reflects the light in the environment. Reflective polarization type should be used in mobile applications and applications where energy consumption is important. (Ex: Energy meters, Calculators, Measuring instruments, etc.) This filter is only used for Positive LCD Indicators.

Transflective (Semi Transparent)

In this polarization type, the polarization filter on the back of the LCD Display is in Transflective(semi-transparent) mode. The LCD can be read with both the outdoor light source and the Backlight. Most of the positive LCD modules are Transflective. Because both natural light in the environment and dark areas should be read with their own backlighting. This filter is used only in Positive LCD Indicators as in Reflective Polarized LCDs.

Transmissive (w/o polarizer)

This LCD display does not have a Polarization filter. Negative LCDs are preferred this technology because negative LCD displays cannot be read with natural light outside. STN Blue / White, VATN (Vertical Alignment Twisted Nematic), FSTN Negative Black / White (Black / White), such as negative polarized LCD Displays Transmissive Polarization should be preferred.

LCD VIEW MODE (Positive/Negative)

Monochrome LCD Displays have two different display modes. Polarization is achieved by changing the direction of the filters.

Positive LCD

In this type of display, the background is light coloured. The segments on the LCD screen obscure ambient light. Standard Green / Black or Black / White LCD displays are included in this group.

• TN: Gray segments on Light Yellow/Green surface.
• STN-Green: Dark Gray segments on Light Yellow/Green surface.
• STN-Silver: Dark Gray/Black Segments on white surface.
• FSTN: Black Segments on Light Gray/White Surface.

Negative LCD

In particular, the blue color indicators fall into this group. In negative mode, the background is Dark (Black or Dark Navy) and segments are light color (White or light white).

• TN: Light Green or Gray Segments on dark gray surface (Low Contrast).
• STN ("Blue-Negative"): White/Blue segments on dark Navy blue surface.
• FSTN: White Segments on Dark Gray Surface (White Backlight).
• VATN, EBN, IBN: Pure White segments on dark black surface (High Contrast/Wide View Angle/White Backlight).

LCD BACKLIGHT

The most common type ofbacklight used in LCD Displays is LED Backlight. The backlight color of the LCD Indicators is determined by the color of the LED used. They can be produced in Blue, Yellow, Green, White and RGB (Red / Green / Blue) colors.

Normally in driverless LCD Displays backlight is manufactured with transparent acrylic plates surrounded by a reflective tape and diffuser films placed on the surfaces of these plates. The Side Strip LED, which is selected according to the pin connections of the acrylic plate and LCD Display, is adhered to the appropriate edge of the acrylic plate, keeping the light in the transparent plate and illuminating the LCD surface. LCD backlight are manufactured in two different types.

Acrylic Backlight;

In this type of backlight, acrylic materials are cut manually. The edges of the cut acrylic material are covering with reflective tape. Diffuser films are adhered to the top and bottom surface of the acrylic material and Side LED fitting on acrylic. According to user request, glass LCD Display and Acrylic LED Backlight are glued together or packaged separately. This is preferred because it provides the advantage of molding at the initial production costs despite the high unit cost of backlight.

Molded Backlight

In this type of backlight, transparent plastic material is produced with a special injection mold. Due to the low raw material waste, the unit cost is more economical. However, initial production costs are slightly higher than manual cut acrylic backlight due to molding costs.