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发明公开
CN101751851A 薄膜电致发光显示屏驱动器 无效 - 撤回

薄膜电致发光显示屏驱动器
摘要：
本发明涉及一种薄膜电致发光显示屏驱动器。它包括DVI传输电路和FPGA控制器，视频信号经DVI传输电路连接到FPGA控制器，FPGA控制器的两路输出经光耦电路隔离模块后分别经行驱动芯片和列驱动芯片连接到薄膜电致发光显示屏，一个驱动电源模块为各组成器件提供工作电源。此发明接收通过DVI接收计算发送的数字视频信号，经过FPGA进行图像处理，FPGA产生控制时序控制行列驱动芯片，使得行列驱动芯片在不同的像素点位置输出不同的驱动电压，从而使得不同的像素点发出不同强度的光，因此实现图像在TFEL屏上显示。驱动电路驱动120×480点阵的TFEL屏，实现128级灰度显示，扫描频率达到100Hz。
摘要（英）：

The invention relates to a film electroluminescence display driver which comprises a DVI transmission circuit and an FPGA controller. Video signals are connected to the FPGA controller through the DVI transmission circuit, two ways of output of the FPGA controller are respectively connected to a film electroluminescence display through a line drive chip and a column drive chip after passing through an optical coupling circuit separation module, and a drive power module supplies a work power supply to each component device. The invention receives digital video signals which are received, calculated and sent by the DVI, the digital video signals are in image processing by the FPGA, and the FPGA generates a control time sequence to control the line drive chip and the column drive chip so as to enable the line drive chip and the column drive chip to output different drive voltages at different pixel point positions, thereby enabling different pixel points to emit lights with different intensities, therefore, images are displayed on a TFEL screen. A drive circuit drives the TFEL screen with a 120*480 lattice so as to realize 128 level gray scale display with the scanning frequency achieving 100Hz.

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