主要从功耗电流和IC的驱动能力两个方面初步探讨了功耗电流和IC驱动能力是造成显示竖条的主要原因并提出了解决的方法。

The paper studies on the vertical bar in display of the matrix COG LCM, and its found that the main causes are consumption current and drive ability of IC.

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电流控制型PWM控制芯片uc 1845集成过压、过流保护功能，脉冲频率高，驱动能力强，动态响应迅速。

The current mode PWM controller UC1845 integrated with over current protection and over voltage protection, has a quicker dynamic response.

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