Dongguan Bibuke Electronic Technology Co., Ltd.
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How COG Segment LCDs Work?
Glass Substrate:
The display is built on a glass panel containing liquid crystal cells.
Integrated Driver:
The driver IC is mounted directly on the glass, which controls the individual segments of the LCD. This eliminates the need for a flexible PCB (printed circuit board) or external wiring between the glass and the driver, reducing complexity.
Polarization:
The liquid crystals are aligned between two polarizing layers. When voltage is applied to the segments, the crystals align in a way that blocks or allows light to pass, creating the visible segments.
Segment Configuration:
The display typically includes a matrix of segments that can be activated or deactivated to form numbers, letters, or custom symbols.
Detailed Parameters:
| Product Name | COG LCD Display | LCD type | Segmented |
| Module size | 25.0(W)* 37.9(H)* 3.8(T) mm | Display mode | VA, Negative |
| LCD viewing area | 22.6(W)* 29.0(H) mm | Polarizer type | Transmissive |
| Operating temp. | -30~+70℃ | LED backlight | White |
| Drive method | 1/1 Duty, 1/2 Bias | Working voltage | 3.7V |
| Viewing angle | 6 O'clock | Connection Way | COG+PIN |
