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摘要
【 中文摘要 】
本发明公开了一种LED寄生电容放电的LED显示电路，主要解决现有LED显示电路行切换时发光二极管LED出现残影的问题。该LED显示系统包括：切换逻辑单元(1)，LED驱动电路(2)，多个寄生电容放电电路(3)，放电逻辑单元(4)；控制逻辑(2)输出行控制信号COM_control至LED驱动电路(2), LED驱动电路(2)在行控制信号的控制下，逐行扫描N个LED行, 在每两个LED行扫描之间，放电逻辑单元(4)输出放电控制信号DCT至每个寄生电容放电电路对LED寄生电容放电。本发明消除了LED显示电路行切换时LED出现残影的问题，提高了视觉效果，可用于制作大规模集成电路。
【 英文摘要 】
The invention discloses an LED display circuit with an LED stray capacitor for discharging. The LED display circuit mainly solves the problem that according to an existing LED display circuit, in line switching, an LED has ghost shadow. The LED display circuit comprises a switching logic unit (1), an LED drive circuit (2), a plurality of stray capacitor discharging circuits (3) and a discharging logic unit (4), the switching logic unit (1) outputs line control signals COM_control to the LED drive circuit (2), the LED drive circuit (2) is controlled by the line control signals to scan N LED lines line by line, and during scanning of every two LED lines, the discharging logic unit (4) outputs discharging control signals DCT to stray capacitor discharging circuits for LED stray capacitor discharging. According to the LED display circuit, the problem that the LED has ghost shadow in line switching of the LED display circuit is solved, the visual effect is improved, and the LED display circuit can be used for manufacturing large integrated circuits.
其他著录项
| 代理机构 | 陕西电子工业专利中心 61205 |
| 代理人 | 王品华; 朱红星 |
| 申请语言 | 汉语 |
| 审查员 | 张辉 |
