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Items from 1 to 20 out of 2,300,133 results

article

P‐47: A Repair Method for Improving Pad Damage of COG MiniLED

Hai Tang, Yutian Chu, Chengcheng Kong, Liang Gao, more

SID Symposium Digest of Technical Papers > 53 > 1 > 1226 - 1228

A COG Mini‐LED chip repair method with a yield ≥ 99.9% is realized by the following three methods: first, a buffer layer is added at the bottom of the pad; second, a suitable repair temperature; and third, IMC suppression layers are added on the surface of the pad.

article

3‐2: Analyzing the Degradation Process of Quantum‐Dot LEDs (QLEDs) by Mass Spectometry

Hin-Wai Mo, Daichi Shirakura, Kentaro Harada, Kiyoshi Ishibashi, more

SID Symposium Digest of Technical Papers > 53 > 1 > 1 - 4

By utilizing time of flight secondary ion mass spectrometry (TOF SIMS), the degradation processes of quantum dot core components and the surface ligands were studied. Intentionally degraded QLED samples were prepared, and the TOF SIMS mass composition signals of each layer within the QLEDs are estimated. The result of the analysis gives possible structural information of the degraded species induced...

article

P‐57: Student Poster: Improved Modulation Transfer Function (MTF) for Aerial Image Formed with AIRR by Use of Two Transparent Spheres

Kazuaki Takiyama, Haotong Guo, Kengo Fujii, Masaki Yasugi, more

SID Symposium Digest of Technical Papers > 53 > 1 > 1257 - 1260

In the AIRR optical system that combines transparent spheres, the MTF due to quasi‐parallelization is greatly improve according to the placement distance of the transparent spheres. Due to the effect of aberration, the MTF reaches its maximum when the sphere is placed outside its Paraxial approximate focal length.

article

P‐59: In‐Fab Raman Spectroscopy for Defect Analysis of Random Failures

Yong-Woon Lim, Hyo-Jin Kim, Won Hyuk Jang, Yunyoung Kyeong, more

SID Symposium Digest of Technical Papers > 53 > 1 > 1264 - 1267

Random defects, which account for more than 90% of electronic product manufacturing defects, are defects caused by foreign substances. Although the detection ability has been improved through various efforts using optical inspection and image features, the ultimate enhancement to improve quality and yield cannot be achieved just by detecting defects. In particular, there was a limit to classifying...

article

P‐54: Development of Heat Free / Low Temperature Process High Refractive Index Materials for Display

Kazuki Urakawa, Hiroki Chisaka, Jiro Hikida, Atsushi Yamanouchi, more

SID Symposium Digest of Technical Papers > 53 > 1 > 1242 - 1244

The rapid development of display devices has led to the increasing exploration of high performance materials, especially those with high refractive index. Moreover, process condition control is important for device and material development. To meet such demand, we have developed heat free / low temperature process high refractive index materials.

article

P‐45: High Efficiency DC‐DC converter for IT OLED Displays

Yoon-Young Lee, Sung-Chun Park, Eun-Ryeol Baek

SID Symposium Digest of Technical Papers > 53 > 1 > 1219 - 1222

A switching type DC‐DC converter used as a power supply circuit for the IT OLED display requires high power conversion efficiency. However, since both positive power (ELVDD) and negative power (ELVSS) are used for OLED power supply, in terms of power conversion, Efficiency degradation occurs. In particular, in the case of the Inverting Buck Boost converter that generates negative power, it is necessary...

article

P‐52: Novel Forming Technology of 3D Cover Glass with Induction Heating System for Curved‐Corner Display

Seungho Kim, Hyunseung Seo, Jinsu Nam, Jong-soo Baek

SID Symposium Digest of Technical Papers > 53 > 1 > 1238 - 1241

This paper talks about new thermal forming method of 3‐dimensional box‐type cover glass with double curvature for mobile phone application. Induced heating of glass forming molds was successfully employed around edge area in order to minimize typical surface wrinkle and dent defects commonly appearing in conventional direct mold heating with heating plates. The results showed better surface qualities...

article

68‐3: Importance of Individual Adaptation in Visually Fidelitous Dynamic‐Range Compression from HDR to SDR Images

Saki Iwaida, Yuichiro Orita, Shoko Hira, Masayuki Kashima, more

SID Symposium Digest of Technical Papers > 53 > 1 > 914 - 917

Reproducing fidelitous videos/images that include the individual impressions induced when the real scene is viewed, is important. Our previous psychological studies and the latest physiological research result conducted by Kubota et al. newly suggest that the human visual system characteristics change dynamically on circadian rhythm. This study also suggests that they significantly depend on individuality,...

article

69‐1: Inkjet‐Printable Optically Clear Silicone Resin for Display Fabrication

Ju Young Yook, Jo Gunn, Minkyu Kyeong, Hyochul Kim, more

SID Symposium Digest of Technical Papers > 53 > 1 > 922 - 925

Inkjet‐printable optically clear silicone resins and fast photocurable optical silicone adhesive, exhibiting suitable viscosity for processability such as inkjet printing and dispensing, and excellent optical stability are described. The target utility of the optically clear resin is to provide a reliable solution for the fabrication of high quality display modules that require long‐term reliability.

article

69‐3: Opportunities for High‐Performance Display Manufacturing Enabled by OTFTs Using an 80*C Maximum Process Temperature

Simon Ogier, Dan Sharkey, Alejandro Carreras, Steven Tsai

SID Symposium Digest of Technical Papers > 53 > 1 > 929 - 932

This paper describes advantages in manufacturing available when dual gate organic thin‐film transistors (OTFT) are integrated into display backplanes. A maximum process temperature of 80°C was chosen throughout the fabrication which used standard display backplane coating and patterning techniques. OTFTs produced in this way demonstrated mobilities up to 3cm²/Vs with on/off ratios above 10⁹. Using...

article

70‐2: A Design for Near Eye Light Field Display

Jian Gao, Sen Ma, Tao Hong, Pengxia Liang

SID Symposium Digest of Technical Papers > 53 > 1 > 941 - 944

In this paper, a light field display system with the continuous imaging depths that can be focused by the monocular eye is proposed. Similar to viewing the real world, the different imaging depths can be viewed by the crystalline lens focusing without the visual fatigue.

article

70‐3: Invited Paper: High‐Resolution Light‐Field VR LCD

Yung-Hsun Wu, Chuan-Chung Chang, Yu-Shih Tsou, Yi-Chien Lo, more

SID Symposium Digest of Technical Papers > 53 > 1 > 945 - 948

An optimized Light Field (LF) VR display with ultra‐high pixel density LCD (3.1 inch 1411 PPI) is presented. Field of view (FOV) and the experience of immersion are improved by adopting the 3%3% resolution display panel. Functions of vision correction (glasses free), reduced Vergence‐Accommodation‐Conflict (VAC) and enlarged eye box with eye tracking are also realized.

article

71‐1: Invited Paper: GaN‐Based Watt‐Class High‐Power Edge‐Emitting Lasers and Milliwatt‐Class Vertical‐Cavity Surface‐Emitting Lasers

Takuya Ozaki, Eiichiro Okahisa, Shingo Masui, Tomoya Yanamoto, more

SID Symposium Digest of Technical Papers > 53 > 1 > 949 - 952

The latest achievements of GaN‐based laser diodes are summarized, focused on two topics: watt‐class high‐power edge‐emitting lasers and milliwatt‐class vertical‐cavity surface‐emitting lasers. These light sources have high efficiency and high reliability, which are suitable for various display applications such as laser projectors and/or ARIVR displays.

article

69‐4: Collimating and Recycling Linear Evaporation Source for AMOLED Mass Production

Sungmoon Kim, Daejoon Chi, Taekgi Lee, Gyoung O Ko

SID Symposium Digest of Technical Papers > 53 > 1 > 933 - 936

It is important in AMOLED pixel forming process to reduce low angle region flux of particles emitted from thermal evaporation source. Because it can cause the mask shadow effect, nozzle clogging and material waste. We developed Collimating and Recycling source. It has unique nozzle structure that can make low angle flux go down to recycling basket and pass only high angle flux through final nozzle...

article

69‐2: A Universal Method for the Lamination of Arbitrary Stretchable Substrate Pairs without Compromising the Elastic Properties of the Substrates

Kihoon Jeong, Yujin Lee, Youson Kim, Hyeonwoo Mun, more

SID Symposium Digest of Technical Papers > 53 > 1 > 926 - 928

Lamination of elastomers while maintaining the stretchability is challenging for the fabrication of stretchable devices. Adhesion between arbitrary soft substrates was achieved by the formation of interpenetration polymer network at the adhesion interface. Strong adhesion was retained even after harsh fatigue test (50% strain, 100,000 times) and wet condition test.

article

63‐2: Research on Stray Light Affecting the Imaging of Fresnel Lens in Virtual Reality Equipment

Huang Haitao, Dong Ruijun, Han Na, Bai Jiarong, more

SID Symposium Digest of Technical Papers > 53 > 1 > 827 - 829

We have verified the main influencing factors of Fresnel lens stray light through experiments and simulations. According to the results, the main causes of stray light are analyzed, and several methods to suppress stay light are put forward. The edges of the Fresnel lens are the biggest influencing factor of stray light is proposed.

article

63‐3: Student Paper: High‐Directivity Emitting Pixel Devices for Advanced Display Applications

Po-Jui Chen, Chi-Jui Chang, Wei-Kai Lee, Zih-Rou Cyue, more

SID Symposium Digest of Technical Papers > 53 > 1 > 830 - 832

For advanced displays like AR or light‐field 3D displays, highly narrow emission patterns (high directivity) from display pixels are highly desired for achieving angular resolutions or higher optical efficiency. In this work, we report an OLED pixel device architecture that can generate highly directional emission and yet also keep decent efficiency. By combining with other optical elements and optical...

article

SID 2022 Executive and Program Committee

SID Symposium Digest of Technical Papers > 53 > 1 > IX - XIII

article

72‐3: Deep Learning Based Visual Defect Detection in Noisy and Imbalanced Data

Qisen Cheng, Shuhui Qu, Janghwan Lee

SID Symposium Digest of Technical Papers > 53 > 1 > 971 - 974

Despite the immense potential, deep learning‐based visual defect detection is often impaired by the inadequate quality of real‐world data. Here, we leverage Confident Learning and One‐class Classification to tackle two major data issues: 1) mislabeling and 2) limited defects for model development, achieving ≥0.85 AUROC on intentionally polluted industrial data.

article

63‐1: Distinguished Student Paper: Microsecond High‐contrast Continuous 2.25π Phase Modulation Based on Non‐linear Kerr Effect of VADHFLC

Zheng-Nan Yuan, Zhi-Bo Sun, Xin-Yi Yu, Ming Cheng, more

SID Symposium Digest of Technical Papers > 53 > 1 > 823 - 826

Here we disclose a fast (ON time ~50μs and OFF time‐25μs at 55°C), high‐contrast, continuous phase modulator without fringe field effect (FFE). The phase modulator using the Kerr effect of vertical aligned deformed helix ferroelectric liquid crystal (VADHFLC). Specifically, FFE is a long‐term problem for nematic liquid crystal (NLC). In this article, we are disclosing, for the 1st‐time found, that...

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Search results

P‐47: A Repair Method for Improving Pad Damage of COG MiniLED

3‐2: Analyzing the Degradation Process of Quantum‐Dot LEDs (QLEDs) by Mass Spectometry

P‐57: Student Poster: Improved Modulation Transfer Function (MTF) for Aerial Image Formed with AIRR by Use of Two Transparent Spheres

P‐59: In‐Fab Raman Spectroscopy for Defect Analysis of Random Failures

P‐54: Development of Heat Free / Low Temperature Process High Refractive Index Materials for Display

P‐45: High Efficiency DC‐DC converter for IT OLED Displays

P‐52: Novel Forming Technology of 3D Cover Glass with Induction Heating System for Curved‐Corner Display

68‐3: Importance of Individual Adaptation in Visually Fidelitous Dynamic‐Range Compression from HDR to SDR Images

69‐1: Inkjet‐Printable Optically Clear Silicone Resin for Display Fabrication

69‐3: Opportunities for High‐Performance Display Manufacturing Enabled by OTFTs Using an 80*C Maximum Process Temperature

70‐2: A Design for Near Eye Light Field Display

70‐3: Invited Paper: High‐Resolution Light‐Field VR LCD

71‐1: Invited Paper: GaN‐Based Watt‐Class High‐Power Edge‐Emitting Lasers and Milliwatt‐Class Vertical‐Cavity Surface‐Emitting Lasers

69‐4: Collimating and Recycling Linear Evaporation Source for AMOLED Mass Production

69‐2: A Universal Method for the Lamination of Arbitrary Stretchable Substrate Pairs without Compromising the Elastic Properties of the Substrates

63‐2: Research on Stray Light Affecting the Imaging of Fresnel Lens in Virtual Reality Equipment

63‐3: Student Paper: High‐Directivity Emitting Pixel Devices for Advanced Display Applications

SID 2022 Executive and Program Committee

72‐3: Deep Learning Based Visual Defect Detection in Noisy and Imbalanced Data

63‐1: Distinguished Student Paper: Microsecond High‐contrast Continuous 2.25π Phase Modulation Based on Non‐linear Kerr Effect of VADHFLC

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