A 6 Gb/s transmitter with data-dependent jitter reduction technique for displayport physical layer

In this paper, a 6 Gb/s transmitter with data-dependent jitter (DDJ) reduction technique for DisplayPort physical layer is presented. We propose a novel technique to minimize DDJ introduced while the output driver is operating with pre-emphasis mode, which is called DDJ reduction technique. The output driver circuit is designed in 0.13 μm 1P6 M CMOS process and fully compliant to the DisplayPort standard. With the proposed technique, observed DDJ at the output of the driver is reduced from 10 ps to under 1 ps while the output driver producing 400 mV output swing with 6 dB pre-emphasis. The output driver consumes minimum 66 mW and adopts 1.2 V supply voltage for core and 3.3 V supply voltage for I/O including pre-drivers.     

AMOLED屏上驱动电路的设计

提出一种基于AMOLED屏的行、列驱动电路的设计方法。该行、列驱动电路是由带两管a-SiTFT和一个存储电容的像素电路组成的AMOLED驱动,行驱动电路是由译码器组成,完成64行的逐行选通信号,列驱动电路由移位寄存器和数据选择器组成,整个系统设计实现128×64点阵AMOLED屏的屏上驱动电路,运用Tanner Pro软件完成对整个电路各部分的绘制,证明了设计的可行性与正确性。     

LED点阵动态显示系统设计及仿真

设计了一种基于AT89C51单片机的16×16LED点阵动态显示系统,给出了LED点阵动态显示原理和汉字取模方法;在Proteus环境下进行了点阵显示系统行、列驱动电路硬件设计,同时采用Keil软件完成了系统主程序、显示驱动程序的设计;最后进行了系统Proteus仿真,降低了成本,提高了开发效率,并获得了良好的显示效果。     

用于LCD测试系统的程控驱动器设计

为了制作一款用于LCD测试系统的程控驱动器,采用基于嵌入式系统ARM7实现程序控制,内建DC/DC升压电路和DC/AC转换电路,以提供直流电源和产生驱动脉冲信号,电源内建/外接可选,其信号输出端按一定时序产生特定的连续脉冲, 供给LCD 屏的行列电极作驱动源, 从而使被选行与被选列交叉位置上的液晶像素或笔段在电场作用下呈现显示状态（遮光或透光） 。该系统输出的工作电压峰值、频率、占空比均可调,是一款低功耗、低输出阻抗的LCD程控驱动器。     

一种段式LCD高清灰阶显示方法

利用现有常用段码LCD驱动芯片,改变连接方法,通过变通的LCD驱动电压叠加方式,实现高清灰阶显示功能.     

A 3 Gb/s transmitter with a tapless pre-emphasis CML output driver

A 3 Gb/s wireline transmitter (Tx) with a tapless pre-emphasis current-mode logic output driver is presented in this paper. The proposed output driver can support 2.5, 6 and 10 dB pre-emphasis without any additional current tap. It can reduce the current consumption of the output driver by 30 %. The 1.5 GHz phase-locked loop (PLL), multi-phase generator, and 26-to-1 serializer are utilized to serialize 26-bit parallel data to 1-bit 3 Gb/s serial data stream. The rms and peak-to-peak jitters of PLL are 2.97 and 22.5 ps, respectively. The eye opening of the proposed output driver at 3 Gb/s is 0.8UI with a 10 dB loss channel. The current consumption of the output driver is only 5.14 mA, and the Tx is 9 mA. The area of the Tx is 0.72 mm² using the 0.11 μm CMOS process.     

双稳态显示的一种新型低功耗高压驱动

电池的使用寿命不够长是电子书、PDA 等之类的便携式显示应用的一个重大问题.电池的功耗一方面取决于其制作工艺,另一方面还与显示器的驱动有关.优化显示器的驱动可以降低其功耗.文章介绍了一种智能型驱动,通过对其每个图像的行列波的计算可知其功耗降低了 50%.     

全彩 128×160 液晶显示器驱动电路

该液晶显示器驱动电路由一个 384 通道列驱动电路和一个 160 通道行驱动电路组成.列驱动电路是一个内置 128×3×160×4 bit 显示数据存储器的 128×3 红绿蓝控制器,具有丰富的指令集,内建静态驱动电路指示不同闪速,可使用内置振荡器或输入外部时钟,液晶显示器的建立时间256级可调.行驱动电路有内建的 160 bit双向移位寄存器,支持多种显示模式,内建DC/DC升压电路,驱动电源内建/外接可选.该驱动电路是一个低功耗低输出阻抗的液晶显示控制器.     

Design of a 16 gray scales 320×240 pixels OLED-on-silicon driving circuit

A 320×240 pixel organic-light-emitting-diode-on-silicon (OLEDoS) driving circuit is implemented using the standard 0.5 μm CMOS process of CSMC. It gives 16 gray scales with integrated 4 bit D/A converters. A three-transistor voltage-programmed OLED pixel driver is proposed, which can realize the very small current driving required for the OLEDoS microdisplay. Both the D/A converter and the pixel driver are implemented with pMOS devices. The pass-transistor and capacitance in the OLED pixel driver can be used to sample the output of the D/A converter. An additional pMOS is added to OLED pixel driver, which is used to control the D/A converter operating only when one row is on. This can reduce the circuit's power consumption. This driving circuit can work properly in a frame frequency of 50 Hz, and the final layout of this circuit is given. The pixel area is 28.4×28.4 μm2 and the display area is 10.7×8.0 mm2 (the diagonal is about 13 mm). The measured pixel gray scale voltage shows that the function of the driver circuit is correct, and the power consumption of the chip is about 350 mW.     

High-voltage CdSe-Ge TFT driver circuits for passive AC-TFELdisplays

Since an electroluminescent display (ELD) is a capacitive display driven at high voltage, it is necessary to fabricate high-voltage, large-current drivers. It is shown that a 20-μm complementary CdSe-Ge thin-film transistor technology can be used to integrate the high-voltage section of the drive circuits on the substrate of an ELD. The realized column driver levels a 15 V CMOS signal up to a modulation voltage of 50 V. A novel tristate row driver circuit, which is based on the symmetric character of the thin-film transistor, handles row selecting voltages of about 200 V together with current pulses of approximately 100 mA. In this paper, the design, simulation, and measurement of these circuits are described. Technology problems due to high voltages were solved     

全彩 128×160 有机发光显示器驱动电路

该有机发光显示器驱动电路由一个 384 通道列驱动电路和一个 160 通道行驱动电路组成.列驱动电路是一个内置128×3×160×4 bit 显示数据存储器的 128×3 红绿蓝控制器,支持用户可编程 4/8 bit 灰度控制,高精度的电流匹配电路和内建预充电路确保了均匀的亮度和高质量的灰度显示.驱动电路可通过 8 bit/16 bit 并行接口直接与微处理器相连,显示数据可以存储在内部,还可独立于微控制器产生有机发光显示器的驱动信号.行驱动电路有可选的电压预充电路和内建低接通电阻确保在高速扫描时的亮度均匀.该驱动电路是一个低功耗低输出阻抗的有机发光显示控制器.     

Memory array architecture and decoding scheme for 3 V only sectorerasable DINOR flash memory

A memory array architecture and row decoding scheme for a 3 V only DINOR (divided bit line NOR) flash memory has been designed. A new sector organization realizes one word line driver per two word lines, which is conformable to tight word line pitch. A hierarchical negative voltage switching row decoder and a compact source line driver have been developed for 1 K byte sector erase without increasing the chip size. A bit-by-bit programming control and a low threshold voltage detection circuit provide a high speed random access time at low V_cc and a narrow program threshold voltage distribution. A 4 Mb DINOR flash memory test device was fabricated from 0.5 μm, double-layer metal, triple polysilicon, triple well CMOS process. The cell measures 1.8×1.6 μm² and the chip measures 5.8×5.0 mm ². The divided bit line structure realizes a small NOR type memory cell     

一种基于数字灰度的微显OLEDos的片上电路设计

介绍了高分辨率硅基微显OLED的特性和时间子场的数字灰度技术,基于单晶硅CMOS成熟技术,给出了一种片上电路设计方案,方案采用2管的数字像素电路,集成了行扫描电路及列数据驱动电路,经模拟仿真满足设计要求。     

一种基于数字灰度的微显OLEDos的片上电路设计

介绍了高分辨率硅基微显OLED的特性和时间子场的数字灰度技术,基于单晶硅CMOS成熟技术,给出了一种片上电路设计方案,方案采用2管的数字像素电路,集成了行扫描电路及列数据驱动电路,经模拟仿真满足设计要求.     

A 0.4-μm CMOS 10-Gb/s 4-PAM pre-emphasis serial link transmitter

A serial link transmitter fabricated in a large-scale integrated 0.4-μm CMOS process uses multilevel signaling (4-PBM) and a three-tap pre-emphasis filter to reduce intersymbol interference (ISI) caused by channel low-pass effects. Due to the process-limited on-chip frequency, the transmitter output driver is designed as a 5:1 multiplexer to reduce the required clock frequency to one-fifth the symbol rate, or 1 GHz. At 5 Gsym/s (10 Gbis), a data eye opening with a height >350 mV and a width >100 ps is achieved at the source. After 10 m of a copper coaxial cable (PE142LL), the eye opening is reduced to 200 mV and 90 ps with pre-emphasis, and to zero without filtering, The chip dissipates 1 W with a 3.3-V supply and occupies 1.5×2.0 mm² of die area     

用液晶显示控制驱动器实现OLED的矩阵字符显示

本文介绍了用液晶显示控制驱动器实现有机发光二极管（OLED）的矩阵字符显示。通过对液晶显示控制驱动器的输出波形和行输出电路的改进，得到了适合OLED矩阵驱动的电路，实现了无交叉效应的OLED矩阵字符显示。     

低逸出功可印刷型彩色FED驱动系统的研制

论述低逸出功可印刷型场致发射显示系统的工作原理,介绍了数字视频图像的转换和处理、视频数据的传输、列灰度驱动集成HV632PG和行集成驱动器STV7697芯片的接口电路以及FPGA控制技术等.研制出了彩色FED显示器样机,首次用于大屏幕低逸出功型印刷式场致发射显示器,能显示彩色视频图像.样机亮度已达200 cd/m2、对比度达6001,显示分辨率为480×240,电路灰度等级达256级,有效显示对角线尺寸为25 in.     

基于单片机的LED汉字显示屏的设计

文中详细介绍了由STC89C52RC单片机、74HC154芯片、晶振电路、复位电路、驱动电路、16×16 LED点阵构成的LED汉字显示屏系统。设计采用STC89C52RC单片机为微控制器,74HC154为译码器、PNP型三极管8550构成行驱动电路,NPN型三极管8050构成列驱动电路,采用4个8x8LED显示器级联构成16×16的点阵汉字显示屏。软、硬件设计结果表明所设计的LED汉字显示屏可以实现汉字的滚动显示,且汉字清晰,无串扰,无重影     

Thin-film video scanner and driver circuit for solid-state flat-panel displays

A thin-film scanner circuit which greatly reduces the number of external lead connections to a large-area flat-panel display, while at the same time providing both the scanning (addressing) function and the video driver function, has been successfully fabricated. The circuit, which can handle both TV (analog) and alphanumeric (digital) type video, also performs line storage so that the incoming serial video can be presented to the display panel in line-at-a-time fashion Vacuum-deposited CdSe thin-film transistors (TFT's), operating in a digital switching mode, are used in conjunction with thin-film storage capacitors to convert the input video into 112 parallel output video columns. Measurements of actual circuit parameters indicate that the scanner can easily operate at real-time TV rates.     

A 30-V row/column driver for flat-panel liquid crystal displays

An 80-output row/column driver has been developed for flat-panel liquid crystal displays (LCDs) using multiplex rates of up to 1:300. A p-well polysilicon-gate CMOS process was enhanced to provide 30-V p-channel and 15-V n-channel transistors using double-diffused drains. By means of a cascode circuit structure, voltage capability on the n-channel side was boosted to 30 V. Parasitic surface channels were avoided by a systematic approach to high-voltage layout. Important circuit features include low power consumption, display border control, and overtemperature protection. Chip size is 25.65 mm². Packaging in an 18.6 mm×15.2 mm, three-sided, 120-lead, tape-automated-bonding module is optimized for wiring on single-sided assembly substrates