
浏览全部资源
扫码关注微信
合肥工业大学 微电子设计研究所, 安徽 合肥 230009
[ "庄则敬(1992-), 男, 安徽合肥人, 硕士研究生, 2016年于西交利物浦大学获得学士学位, 主要研究方向为模拟集成电路设计和OLED显示驱动。E-mail: chinareaper92@163.com" ]
[ "尹勇生(1973-), 男, 博士, 教授, 2006年于合肥工业大学获得博士学位, 主要研究方向为模拟混合信号集成电路设计、可重构计算技术等, 当前研究重点在模拟电路的数字化辅助设计方面。E-mail: yinyongsheng@hfut.edu.cn" ]
收稿日期:2020-11-06,
修回日期:2020-12-07,
纸质出版日期:2021-04
移动端阅览
庄则敬, 尹勇生, 孙晓霞, 等. 一种应用于AMOLED的宽电压摆幅高精度伽马校正电路设计[J]. 液晶与显示, 2021,36(4):529-537.
Ze-jing ZHUANG, Yong-sheng YIN, Xiao-xia SUN, et al. Design of a wide voltage swing high-precision Gamma correction circuit for AMOLED[J]. Chinese journal of liquid crystals and displays, 2021, 36(4): 529-537.
庄则敬, 尹勇生, 孙晓霞, 等. 一种应用于AMOLED的宽电压摆幅高精度伽马校正电路设计[J]. 液晶与显示, 2021,36(4):529-537. DOI: 10.37188/CJLCD.2020-0299.
Ze-jing ZHUANG, Yong-sheng YIN, Xiao-xia SUN, et al. Design of a wide voltage swing high-precision Gamma correction circuit for AMOLED[J]. Chinese journal of liquid crystals and displays, 2021, 36(4): 529-537. DOI: 10.37188/CJLCD.2020-0299.
针对AMOLED显示驱动芯片对高精度、低功耗的应用需求,设计了一种宽电压摆幅、高精度、具有温度补偿功能的伽马校正电路。电路通过幅值调节和斜率调节,并微调关键点,从而改变DAC输出曲线,更好地拟合灰阶-电压曲线实现高精度。通过使用轨到轨输入级及基于亚阈值跨导恒定设计的输出缓冲器电路保证了宽输入电压范围,采用Cascode Miller补偿结构以降低补偿电容大小,提高稳定性和响应速度。电路使用了温度补偿结构以平衡温度变化对灰阶电压带来的影响。仿真结果表明:在UMC 80 nm的工艺下,在输入电压为0.2~6.3 V的范围内,设计的伽马校正电路的响应时间在20 μs,电路输出电压的误差在3 mV以内。性能基本不受温度影响,满足了分辨率为1 080×2 160的AMOLED驱动芯片的设计需求。
Aiming at the application requirements of AMOLED display driver chips for high precision and low power consumption
a Gamma correction circuit with wide voltage swing
high precision and temperature compensation is designed. The circuit uses amplitude adjustment and slope adjustment
fine-tune key points to change the DAC output curve
and better fitting the grayscale-voltage curve to achieve high accuracy. By using rail-to-rail input stage and output buffer circuit based on constant sub-threshold transconductance design
a wide input voltage range is guaranteed. Cascode Miller compensation structure is used to reduce the size of the compensation capacitor and improve stability and response speed. The circuit uses a temperature compensation structure to balance the effect of temperature changes on the gray-scale voltage. The simulation results show that under the UMC 80 nm process
within the range of 0.2~6.3 V input voltage
the response time of the designed Gamma correction circuit is 20 μs
and the error of the circuit output voltage is within 3 mV. The performance is basically not affected by temperature and meets the design requirements of AMOLED driver chips with a resolution of 1 080×2 160.
宇 跃峰 , 尹 勇生 , 谢 熙明 , 等 . 一种应用于AMOLED显示驱动的电荷泵系统 . 电子技术应用 , 2020 . 46 ( 10 ): 51 - 56 . https://www.cnki.com.cn/Article/CJFDTOTAL-DZJY202010015.htm https://www.cnki.com.cn/Article/CJFDTOTAL-DZJY202010015.htm .
Y F YU , Y S YIN , X M XIE , 等 . A charge pump system applied to AMOLED display drive . Application of Electronic Technique , 2020 . 46 ( 10 ): 51 - 56 . https://www.cnki.com.cn/Article/CJFDTOTAL-DZJY202010015.htm https://www.cnki.com.cn/Article/CJFDTOTAL-DZJY202010015.htm .
王颖. 高分辨率AMOLED显示屏源极驱动电路设计[D]. 成都: 电子科技大学, 2015: 1-2.
WANG Y. Design of a high-resolution AMOLED panel source driver circuit[D]. Chengdu: University of Electronic Science and Technology of China, 2015: 1-2. (in Chinese)
童振霄. 高分辨率AMOLED显示屏源极驱动电路的研究与设计[D]. 成都: 电子科技大学, 2014.
TONG Z X.Research and design of a high resolution AMOLED panel source driver circuit[D]. Chengdu: University of Electronic Science and Technology of China, 2014: 8-9. (in Chinese)
马 奔 , 杨 文华 , 尹 勇生 , 等 . RGB-Delta结构AMOLED子像素渲染算法的研究 . 激光与光电子学进展 , 2020 . 57 ( 10 ): 101106 https://www.cnki.com.cn/Article/CJFDTOTAL-JGDJ202010031.htm https://www.cnki.com.cn/Article/CJFDTOTAL-JGDJ202010031.htm .
B MA , W H YANG , Y S YIN , 等 . Research on RGB-Delta structure AMOLED sub-pixel rendering algorithm . Laser & Optoelectronics Progress , 2020 . 57 ( 10 ): 101106 https://www.cnki.com.cn/Article/CJFDTOTAL-JGDJ202010031.htm https://www.cnki.com.cn/Article/CJFDTOTAL-JGDJ202010031.htm .
孟 宇 , 尹 勇生 , 宇 跃峰 , 等 . 应用于AMOLED源极驱动的高精度DAC设计 . 液晶与显示 , 2019 . 34 ( 4 ): 379 - 385 . http://cjlcd.lightpublishing.cn/thesisDetails#10.3788/YJYXS20193404.0379 http://cjlcd.lightpublishing.cn/thesisDetails#10.3788/YJYXS20193404.0379 .
Y MENG , Y S YIN , Y F YU , 等 . High precision DAC design for AMOLED source drive . Chinese Journal of Liquid Crystals and Display , 2019 . 34 ( 4 ): 379 - 385 . http://cjlcd.lightpublishing.cn/thesisDetails#10.3788/YJYXS20193404.0379 http://cjlcd.lightpublishing.cn/thesisDetails#10.3788/YJYXS20193404.0379 .
H C SEOL , S K HONG , O K KWON . An area-efficient high-resolution resistor-string DAC with reverse ordering scheme for active matrix flat-panel display data driver ICs . Journal of Display Technology , 2016 . 12 ( 8 ): 828 - 834 . DOI: 10.1109/JDT.2016.2526042 http://doi.org/10.1109/JDT.2016.2526042 .
李 有慧 . 一种输入输出轨到轨CMOS运算放大器的设计 . 电子科技 , 2015 . 28 ( 6 ): 165 - 169 . https://www.cnki.com.cn/Article/CJFDTOTAL-DZKK201506046.htm https://www.cnki.com.cn/Article/CJFDTOTAL-DZKK201506046.htm .
Y H LI . An input output rail-to-rail CMOS operational amplifier design . Electronic Science and Technology , 2015 . 28 ( 6 ): 165 - 169 . https://www.cnki.com.cn/Article/CJFDTOTAL-DZKK201506046.htm https://www.cnki.com.cn/Article/CJFDTOTAL-DZKK201506046.htm .
B RAZAVI . Design of Analog CMOS Integrated Circuits , : Boston McGraw-Hill , 2001 .
P R GRAY . Analysis and Design of Analog Integrated Circuits , 2009 .
J S KANG , J H KIM , S Y KIM , 等 . 10-bit driver IC using 3-bit DAC embedded operational amplifier for spatial optical modulators (SOMs) . IEEE Journal of Solid-State Circuits , 2007 . 42 ( 12 ): 2913 - 2922 . DOI: 10.1109/JSSC.2007.908690 http://doi.org/10.1109/JSSC.2007.908690 .
王 为之 , 靳 东明 . 一种采用共栅频率补偿的轨到轨输入/输出放大器 . 半导体学报 , 2006 . 27 ( 11 ): 2025 - 2028 . https://www.cnki.com.cn/Article/CJFDTOTAL-BDTX200611026.htm https://www.cnki.com.cn/Article/CJFDTOTAL-BDTX200611026.htm .
W Z WANG , D M JIN . A rail-to-rail input/output amplifier using common-gate frequency compensation . Chinese Journal of Semiconductors , 2006 . 27 ( 11 ): 2025 - 2028 . https://www.cnki.com.cn/Article/CJFDTOTAL-BDTX200611026.htm https://www.cnki.com.cn/Article/CJFDTOTAL-BDTX200611026.htm .
W M C SANSEN . Analog Design Essentials , : New York Springer , 2006 .
C HWANG , A MOTAMED , M ISMAIL . Universal constant- g m input-stage architectures for low-voltage op amps . IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications , 1995 . 42 ( 11 ): 886 - 895 . DOI: 10.1109/81.477199 http://doi.org/10.1109/81.477199 .
陈 宏 , 曾 龄宇 , 胡 乔 , 等 . 一种用于轨到轨运算放大器的新型频率补偿结构 . 微电子学 , 2011 . 41 ( 1 ): 15 - 18 . https://www.cnki.com.cn/Article/CJFDTOTAL-MINI201101004.htm https://www.cnki.com.cn/Article/CJFDTOTAL-MINI201101004.htm .
H CHEN , L Y ZENG , Q HU , 等 . A novel frequency compensation structure for rail-to-rail operational amplifier . Microelectronics , 2011 . 41 ( 1 ): 15 - 18 . https://www.cnki.com.cn/Article/CJFDTOTAL-MINI201101004.htm https://www.cnki.com.cn/Article/CJFDTOTAL-MINI201101004.htm .
0
浏览量
204
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621