Active matrix display

Abstract

The active matrix display is provided with wires (62a, 62b, 62c) running along the edges of the display on the display substrate but outside the display area (63). These wires include at least one layer (90) affixed to the film layer defining the pixel array. The row driver circuit and / or the column driver circuit has a portion (40, 50) that is located on a common substrate outside the display area (63) and is connected to a wire. Specialized processes can be applied to the wires in order to form low impedance wires. These facilitate the integration or mounting of row driver circuits or column driver circuits onto a common substrate.

Description

technical field [0001] The present invention relates to active matrix displays. Background technique [0002] An active matrix liquid crystal display (AMLCD) is a well known example of an active matrix display. In such displays, liquid crystals are sandwiched between active and passive plates. The active plate includes a plurality of electrodes that apply an electric field to the liquid crystal, and the electrodes are usually arranged in an array. Row and column electrodes extend along the rows and columns of pixel electrodes and typically provide data signals to the pixels using thin film drive transistors that drive the respective pixel electrodes. [0003] In addition to the drive transistor, each pixel may also include a capacitor to maintain a charge on the pixel. [0004] One challenge is providing the circuitry necessary to decode the input signal and drive the row and column electrodes. Typically, such driving circuits are mounted around the outside of the pixel ...

AI Technical Summary

Problems solved by technology

[0007] However, while avoiding the need for a dedicated row driver PCB, these methods produce connections with increased impedance compared to connections on a PCB (metal tracks on a glass substrate)

These increased impedances can cause visual sensory artifacts

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