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发明公开
CN102200872A 一种内嵌电容式液晶触摸屏 有权 转让

一种内嵌电容式液晶触摸屏
摘要：
本发明是一种内嵌电容式液晶触摸屏，包括透明玻璃基板层、铟锡氧化物ITO层、彩色滤光片层、液晶层、TFT有源矩阵层、背光模组、偏振器层、平面化层、钝化层；优点：将电容式触控感应模块完全内嵌入液晶显示模块内，引入两个像素电极与相应的感应液晶电容线和储存电容线分别形成感应液晶电容和储存电容，通过薄层晶体管在触控感应单元内的线路设计，将第二铟锡氧化物ITO层与显示模块的Vcom设置在同一层中，并且消除触控模块内嵌入液晶显示模块以及第二铟锡氧化物ITO层与显示模块的Vcom设置在同一层中存在的线路干扰和噪音，简化结构，提高透光率，无需再对彩色滤光片和液晶显示模块线路进行改造。
摘要（英）：

The invention provides an embedded capacitance type liquid crystal touch screen, which comprises a transparent glass substrate layer, an indium tin oxide (ITO) layer, a colorful filter layer, a liquid crystal layer, a thin film transistor (TFT) active matrix layer, a backlight module, a polarizer layer, a complanation layer and a passivation layer. The touch screen is characterized in that: a capacitance type touch sensing module is completely embedded in a liquid crystal display module; two pixel electrodes are introduced to form a sensing liquid crystal capacitor and a storage capacitor with a corresponding sensing liquid crystal capacitor line and a storage capacitor line respectively; and through the circuit design of the thin film transistor in a touch sensing unit, a second indium tin oxide (ITO) layer and a Vcom of a display module are arranged in the same layer, and circuit interference and noise generated by embedding the liquid crystal display module in the touch module and arranging the second indium tin oxide (ITO) layer and the Vcom of the display module in the same layer are eliminated. By the embedded capacitance type liquid crystal touch screen, the structure is simplified, the transmission rate is improved, and circuits of the colorful filter and the liquid crystal display module are not required to be reconstructed.

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