介绍了一种基于FPGA的驱动方案,为所研制的基于微晶硅TFT基板的17.8 cm(7 in)有源矩阵有机发光显示器(AMOLED)提供驱动.该驱动方案实现简单,无需外部缓存,降低了电路布线和系统控制的难度.另外,提出了一种屏幕与IC的连接方案,解决了LCD驱动IC与AMOLED不匹配问题.详细介绍了系统组成及FPGA内部各模块工作原理,给出了时序及控制信号仿真图及示波器的实测结果.结果表明,该设计方案可实现64级灰度的AMOLED动态视频显示.
参考文献
| [1] | Nathan A,Kumar A,Sakariya K,et al.Amorphous silicon thin film transistor circuit integration for organic LED displays on glass and plastic[J].Solid-State Circuits,2004,39(9):1477-1486. |
| [2] | Baek J H,Lee M H,Lee J H,et al.A current-mode display driver IC using sample-and-hold scheme for QVGA full-color AMOLED displays[J].Solid-State Circuits,2006,41(12):2974-2982. |
| [3] | Nathan A,Chaji G R,Ashtiani S J.Driving schemes for a-Si and LTPS AMOLED displays[J].Display Technology,2005,1(2):267-277. |
| [4] | Lin Chihlung,Tsai Tsungting,Chen Yungchih.A novel voltage-feedback pixel circuit for AMOLED displays[J].Display Technology,2008,4 (1):54-60. |
| [5] | Gaillard A,Rogel R,Crand S,et al.A new active pixel design using μc-Si TFT technology to improve brightness uniformity of organic displays[C]//ICECS,Nice,France:IEEE,2006:498-501. |
| [6] | Teng L H,Anderson W A.Thin film transistors on nanocrystalline silicon directly deposited by a microwave plasma CVD[J].Solid-State Electronics,2004,48(2):309-314. |
| [7] | 尹盛,陈帅,刘陈,等.基于FPGA的全彩色AM-OLED显示屏数字灰度方案[J].电子工程师,2003,29(5):41-43. |
| [8] | 赵二刚,孙鹏飞,赵立晴,等.基于FPGA的TFT显示屏控制系统的设计与实现[J].光电子技术,2009,29(2):130-134. |
| [9] | 沈亮,尹盛,张繁,等.12.7 cm彩色AM-OLED显示器分场驱动研究[J].光电子·激光,2006,17(10):1173-1176. |
| [10] | 杨虹,王刚,唐志勇,等.TFT液晶显示屏驱动方法的研究[J].微电子学,2000,30(1):39-42. |
| [11] | 帅金晓,颜永红,彭琰,等.双线性插值图像放大算法优化及硬件实现[J].核电子学与探测技术,2009,29(1):55-58. |
| [12] | VESA.VESA and industry standards and guidelines for computer display monitor timing[R].Milipitas,CA:Video Electronics Standards Association,2004. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%