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首页> 外文期刊>SID International Symposium: Digest of Technology Papers >An Improved Differential Signaling Scheme for the Chip-On-Glass Application of TFT-LCD
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An Improved Differential Signaling Scheme for the Chip-On-Glass Application of TFT-LCD

机译：TFT-LCD玻璃上芯片应用的改进差分信号方案

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摘要

An improved signaling scheme for the intra-panel interface for the chip-on-glass (COG) application is proposed. The proposed signaling scheme adopts a transmitter with the current-mode driver with shunt termination for an impedance matching on the transmitter and a receiver without termination to eliminate the multiple reflections on the transmitter. It obtains good signal quality on the receiver without additional current consumption. The transmitter for the proposed signaling scheme adopts the current-mode driver with shunt termination instead of the voltage-mode driver with series termination resistor for minimizing the effect caused by the process dependency of the circuitry in the transmitter. The receiver for the proposed signaling scheme is equipped with the loss compensator to equalize the channel loss caused by the highly resistive signal line-on-glass (LOG) and low channel bandwidth due to open termination on the receiver. The proposed signaling scheme is verified with 9.7-inch XGA (1024RGB×768) resolution TFT-LCD module for tablet computer. The proposed signaling scheme achieves the low electromagnetic near-field radiation from the signal lines by acquiring the good signal integrity on the transmission channel.
机译：提出了一种用于玻璃上芯片（COG）应用的面板内接口的改进信令方案。所提出的信令方案采用具有电流模式驱动器的发射器，该电流模式驱动器具有用于在发射器上进行阻抗匹配的并联端接，以及没有端接以消除发射器上的多次反射的接收器。它在接收器上获得了良好的信号质量，而没有额外的电流消耗。用于提出的信令方案的发射器采用带有并联端接的电流模式驱动器，而不是带有串联端接电阻器的电压模式驱动器，以使发射器中电路的工艺依赖性引起的影响最小。针对所提出的信令方案的接收器配备有损耗补偿器，以均衡由高电阻信号玻璃线上（LOG）和由于接收器上的开路终端引起的低信道带宽所引起的信道损耗。 9.7英寸XGA（1024RGB×768）分辨率的平板电脑TFT-LCD模块验证了所提出的信令方案。所提出的信令方案通过在传输信道上获得良好的信号完整性来实现来自信号线的低电磁近场辐射。

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