CAJ | 학술논문

本文介绍了OLED的显示原理以及PWM灰度显示的方法，提出一种自关闭PWM灰度控制方法来实现OLED的灰度显示。并用该方法进行方案设计，给出了其仿真结果并在FPGA上进行验证。该方法在一块20×20分辨率的绿色PM-OLED显示屏上进行实验，能实现16级灰度的显示。结果表明：与传统的用比较器来实现的方法相比，在灰度级和显示效果相同的情况下，该方法能有效地减小芯片的面积，提高芯片的性价比。
본문개소료OLED적현시원리이급PWM회도현시적방법，제출일충자관폐PWM회도공제방법래실현OLED적회도현시。병용해방법진행방안설계，급출료기방진결과병재FPGA상진행험증。해방법재일괴20×20분변솔적록색PM-OLED현시병상진행실험，능실현16급회도적현시。결과표명：여전통적용비교기래실현적방법상비，재회도급화현시효과상동적정황하，해방법능유효지감소심편적면적，제고심편적성개비。
The principles of OLED display and methods of PWM grayscale display are introduced. A self-closing PWM grayscale control method is proposed to achieve the OLED gray-scale display. Based on the method, a design is made, and its simulation results are presented and verified on FPGA. An experiment is conducted on a green PM-OLED display of 20 × 20 resolution, which can achieve 16 gray-scale displays. The results show that compared with the conventional method using a comparator, the above method, in the case of the same gray-scale display, can effectively reduce the chip area and improve the performance-price ratio of the chip.