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发明授权
CN105511546B gamma参考电压纹波过滤电路以及液晶显示器 有权

gamma参考电压纹波过滤电路以及液晶显示器
摘要：
本发明公开了一种gamma参考电压纹波过滤电路以及液晶显示器，包括滤波模块，滤波模块用于接收gamma参考电压电路输出的gamma参考电压，对gamma参考电压进行滤波，并将滤波后的gamma参考电压发送给薄膜晶体管液晶显示器，gamma参考电压纹波过滤电路还包括：检测模块，用于对滤波后的gamma参考电压进行检测以得到检测电压；比较模块，用于对检测电压进行比较，以获得比较结果；调整模块，用于根据比较结果调整滤波模块，使得滤波模块输出的过滤后的gamma参考电压的纹波在预设范围内。上述方案能够稳定液晶两端压差，防止液晶反转角度不稳而产生flicker现象影响画质。
摘要（英）：

The present invention discloses a gamma reference voltage ripple filter circuit and a liquid crystal display, including: a filter module to receive the gamma reference voltage from the gamma reference voltage circuit, filter the gamma reference voltage, and output the filtered gamma reference voltage to a thin film transistor liquid crystal display; a detection module to detect the filtered gamma reference voltage and obtain a detection voltage; a comparison module to compare the detection voltage and obtain a comparison result; and a regulator module to regulate the filter module according to the comparison result, and make the ripple of the filtered gamma reference voltage in a in a default range. The disclosure can stable the voltage difference in the two terminals of the liquid crystal, avoiding the instability of the reversing angle of the liquid crystal to produce flicker phenomenon, affecting the display quality.

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