Search results for: Chia-En Wu

Items from 1 to 18 out of 18 results

article

64‐4: Student Paper: MiniLED Driving Circuit with Power‐Saving Mechanism for Use in LCD Backlight Module

Sung-Chun Chen, Chieh-An Lin, Cheng-Rui Lu, Chia-En Wu, more

SID Symposium Digest of Technical Papers > 53 > 1 > 849 - 852

This work presents a Mini‐LED driving circuit with for backlight unit of liquid crystal display. Simulation results indicate that the emission current error rates are all below 9.9% to ensure the capability of the proposed circuit to improve the image quality of displays.

article

P‐60: An 8Gbps Receiver for 8K Large‐Size Display

Ju-Lin Huang, Yi-Chuan Liu, Ko-Chun Liang, Yu-Hsiang Wang, more

SID Symposium Digest of Technical Papers > 50 > 1 > 1460 - 1463

An 8Gbps receiver is implemented in 1.2V 0.11um high‐voltage CMOS process for 8K 120Hz large‐size display. Signal integrity is also improved to achieve maximum data rate of 8Gbps, 6Gbps over prototype channels for 65‐inch display, 85‐inch double‐side driving display respectively. The measured bit error rate is below 1E‐9 for PRBS‐18.

article

UHD AMOLED Driving Scheme of Compensation Pixel and Gate Driver Circuits Achieving High-Speed Operation

Chih-Lung Lin, Po-Syun Chen, Ming-Yang Deng, Chia-En Wu, more

IEEE Journal of the Electron Devices Society > 2018 > 6 > 1 > 26 - 33

This paper presents a new driving scheme for active-matrix organic light-emitting diode displays. A pixel circuit based on this driving scheme was developed to compensate for the threshold voltage and mobility variations of low-temperature polycrystalline-silicon thin-film transistors (TFTs), eliminate image flickering and current-resistance voltage drops, and suit ultrahigh-definition (UHD) resolution...

article

Optical Properties of Hydrogenated Amorphous Silicon Thin-Film Transistor-Based Optical Pixel Sensor in Three Primary Colors

Chih-Lung Lin, Chia-En Wu, Wen-Ching Chiu, Wan-Lin Wu, more

IEEE Journal of Selected Topics in Quantum Electronics > 2018 > 24 > 2 > 1 - 8

This work investigates the characteristics and optical responses of photo thin-film transistors (TFTs) that are covered with color filters in the three primary colors. The transmission rates of the color filters under the illumination with various wavelengths are presented as a reference for the integration of photo TFTs with conventional color filters. Measurements are made on previously developed...

article

Reductive amination derivatization for the quantification of garlic components by isotope dilution analysis

Yi-Reng Lin, Mei-Fang Huang, You-Ying Wu, Meng-Chieh Liu, more

Food Chemistry > 2017 > 230 > C > 1-5

In this work, we synthesized internal standards for four garlic organosulfur compounds (OSCs) by reductive amination with ¹³C, D₂-formaldehyde, and developed an isotope dilution analysis method to quantitate these organosulfur components in garlic samples. Internal standards were synthesized for internal absolute quantification of S-allylcysteine (SAC), S-allylcysteine sulfoxide (alliin), S-methylcysteine...

chapter

New gate driver circuit using pre-charge structure for active-matrix LCDs equipped with in-cell touch structure

Chia-Lun Lee, Chia-En Wu, Ching-En Lee, Chih-Lung Lin

2017 24th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD) > 151 - 154

2017 24th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)

This work presents a hydrogenated amorphous silicon (a-Si:H) gate driver circuit for active-matrix liquid crystal displays (AMLCDs) equipped with in-cell touch structure. The display operation can be paused several times in a frame with the horizontal blank driving method to increase the touch reporting rate. Moreover, the pre-charge structure is utilized to reduce the threshold voltage (Vth) shift...

article

Hydrogenated Amorphous Silicon Gate Driver With Low Leakage for Thin-Film Transistor Liquid Crystal Display Applications

Chih-Lung Lin, Ming-Yang Deng, Chia-En Wu, Chih-Cheng Hsu, more

IEEE Transactions on Electron Devices > 2017 > 64 > 8 > 3193 - 3198

This paper presents a new low-leakage gate driver circuit using hydrogenated amorphous silicon (a-Si:H) thin-film transistors (TFTs) for active-matrix liquid crystal display (AMLCD) applications. The pull-down TFTs are turned OFF to maintain the high driving capability of the proposed circuit. Four phase clock signals with a duty ratio of 33% are utilized to turn ON the pull-down TFTs in advance to...

article

Tracking Touched Trajectory on Capacitive Touch Panels Using an Adjustable Weighted Prediction Covariance Matrix

Chih-Lung Lin, Ting-Ching Chu, Chia-En Wu, Yi-Ming Chang, more

IEEE Transactions on Industrial Electronics > 2017 > 64 > 6 > 4910 - 4916

This study presents a smooth tracking algorithm for a proposed capacitive touch panel system that consists of a 7-in panel, a microcontroller unit, a sensor IC, an interface board, and a laptop computer. The proposed adaptive Kalman filter (AKF) algorithm is capable of reducing the complexity of the computation by the processor and the effect of unstable measurement noise on zigzag trajectory as the...

article

Optical Pixel Sensor of Hydrogenated Amorphous Silicon Thin-Film Transistor Free of Variations in Ambient Illumination

Chih-Lung Lin, Chia-En Wu, Po-Syun Chen, Po-Cheng Lai, more

IEEE Journal of Solid-State Circuits > 2016 > 51 > 11 > 2777 - 2785

This paper presents a primary color optical pixel sensor circuit that utilizes hydrogenated amorphous silicon thin-film transistors (TFTs). To minimize the effect of ambient light on the sensing result of optical sensor circuit, the proposed sensor circuit combines photo TFTs with color filters to sense a primary color optical input signal. A readout circuit, which also uses thin-film transistors,...

article

Gate Driver Circuit Using Pre-Charge Structure and Time-Division Multiplexing Driving Scheme for Active-Matrix LCDs Integrated with In-Cell Touch Structures

Chih-Lung Lin, Ming-Yang Deng, Chia-En Wu, Po-Syun Chen, more

Journal of Display Technology > 2016 > 12 > 11 > 1238 - 1241

This paper presents a new gate driver circuit for active-matrix liquid crystal displays with an in-cell touch structure designed by hydrogenated amorphous silicon thin-film transistors. To increase the reporting rate of a touch panel, the proposed circuit can be used to pause display operations to perform touch sensing operations several times per frame. The proposed circuit exploits a pre-charge...

article

Hydrogenated Amorphous Silicon Thin-Film Transistor-Based Optical Pixel Sensor With High Sensitivity Under Ambient Illumination

Chih-Lung Lin, Chia-En Wu, Po-Syun Chen, Ching-Heng Chang, more

IEEE Electron Device Letters > 2016 > 37 > 11 > 1446 - 1449

This letter develops an optical pixel sensor that is based on hydrogenated amorphous silicon thin-film transistors. Exploiting the photo sensitivity of the photo TFTs and combining different color filters, the proposed sensor can sense an optical input signal of a specified color under high ambient illumination conditions. Measurements indicate that the proposed pixel sensor effectively reacts to...

article

Insertion of Simple Structure Between Gate Driver Circuits to Prevent Stress Degradation in In-Cell Touch Panel Using Multi-V Blanking Method

Chih-Lung Lin, Chia-En Wu, Ching-En Lee, Fu-Hsing Chen, more

Journal of Display Technology > 2016 > 12 > 10 > 1040 - 1042

This letter proposes a simple structure for in-cell touch thin-film transistor liquid crystal displays (TFT-LCDs) that are driven by the multi-V blanking method. The proposed structure is designed to activate the gate driver circuit after the touch sensing period to prevent the driving TFT of the gate driver circuit from exhibiting long-term stress during this period. Measured electrical characteristics...

chapter

Blue-phase pixel circuit design to enlarge operation voltage and combine polarity inversion with a-IGZO thin-film-transistors

Chia-En Wu, Chih-Lung Lin, Ming-Xun Wang

2016 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD) > 266 - 269

2016 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)

This work develops a pixel circuit for in-plane switching blue-phase liquid crystal displays (IPS BPLCDs) integrated with amorphous indium-gallium-zinc-oxide thin-film-transistors (a-IGZO TFTs). The proposed circuit enlarges the range of operation voltage of BPLC by selecting different bias voltage signals to achieve maximum transmittance of BPLCs. Polarity inversion is also combined with the source...

article

Highly Reliable Bidirectional a-InGaZnO Thin-Film Transistor Gate Driver Circuit for High-Resolution Displays

Chih-Lung Lin, Chia-En Wu, Fu-Hsing Chen, Po-Cheng Lai, more

IEEE Transactions on Electron Devices > 2016 > 63 > 6 > 2405 - 2411

This paper presents a new bidirectional gate driver circuit that utilizes amorphous indium–gallium–zinc oxide thin-film transistors (TFTs). To ensure the compactness of the display system, bidirectional transmission function is implemented by adjusting the sequence of clock signals without extra controlling signal. The lifetime of the proposed gate driver circuit is increased by reducing the drain...

article

Simplified Gate Driver Circuit for High-Resolution and Narrow-Bezel Thin-Film Transistor Liquid Crystal Display Applications

Chih-Lung Lin, Fu-Hsing Chen, Wun-Cing Ciou, Yuan-Wei Du, more

IEEE Electron Device Letters > 2015 > 36 > 8 > 808 - 810

A novel gate driver circuit composed of four thin-film transistors (TFTs) and two capacitors is developed. Three-phase overlapping clock signals are used in multifunction input TFT and driving TFT, so the proposed circuit can have a simple structure. The electrical characteristics of a fabricated amorphous-indium–gallium–zinc-oxide TFT are measured to establish the model of HSPICE simulation. Simulated...

article

Low-Power a-Si:H Gate Driver Circuit With Threshold-Voltage-Shift Recovery and Synchronously Controlled Pull-Down Scheme

Chih-Lung Lin, Mao-Hsun Cheng, Chun-Da Tu, Chia-En Wu, more

IEEE Transactions on Electron Devices > 2015 > 62 > 1 > 136 - 142

This paper presents a new low-power gate driver circuit designed by hydrogenated amorphous silicon thin-film transistors (a-Si:H TFTs). An attempt is also made to reduce the power consumption resulting from the high-frequency pull-down structure, in which a pair of 0.25-Hz clock signals is used to implement a low-frequency and synchronously controlled pull-down scheme for recovering the threshold...

article

Low-Power Gate Driver Circuit for TFT-LCD Application

Chih-Lung Lin, Chun-Da Tu, Chia-En Wu, Chia-Che Hung, more

IEEE Transactions on Electron Devices > 2012 > 59 > 5 > 1410 - 1415

This paper presents a novel low-power gate driver circuit fabricated from glass by using hydrogenated amorphous silicon (a-Si:H) technology and a standard five-mask process. The tolerance of the threshold voltage shift of the proposed gate driver circuit can be estimated as 30 V by using an H-SPICE simulator. Measurement results indicate that the rising and falling times of the output waveform are...

article

InAsPSb quaternary alloy grown by gas source molecular beam epitaxy

Gene Tsai, De-Lun Wang, Chia-En Wu, Chen-Jun Wu, more

Journal of Crystal Growth > 2007 > 301-302 > Complete > 134-138

Quaternary InAs _x P _y Sb ₁₋ _x ₋ _y alloys nearly lattice-matched to InAs substrates have been successfully grown by gas source molecular beam epitaxy (GSMBE) with the composition covering the immiscibility region. Through high resolution X-ray diffractometry, we observed the compositional inhomogeneity in these alloys. Enhancement in the As incorporation in the growth...

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