59‐4: <i>Late‐News Paper:</i> High Transmittance and High Charging Rate 8K 120Hz ADS LCD TV

Hu, Hehe; Yuan, Guangcai; Gu, Zhaoyun; Huang, Jianhua; Ning, Ce; Wang, Baoqiang; Qiu, Yun; Ma, Xiaocheng; Liu, Liwei; Li, Rui; Li, Zhengliang; Shi, Guangdong; Wang, Lizhong; Yao, Nianqi; Dong, Shuilang; Xue, Dapeng

doi:10.1002/sdtp.14012

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…The response time of HCR negative LC becomes slower due to the increase of 𝛾 1 value. [3] For HCR negative LC, the conventional one frame OD can't make LC molecule to reach the target state. We study the way of using two frames OD to make the LC reach the target state quickly.…”

Section: Response Time Optimizationmentioning

confidence: 99%

34‐6: Invited Paper: High Image Quality of 8K TV LCDs with Negative LC

Chen

Huang

Shao

et al. 2022

Symp Digest of Tech Papers

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ADS display mode with positive LC mixture has been widely used in TV and other large size LCD products. After years of technical iterations, positive LC mixture have approached the material limit in terms of transmittance, contrast ratio and so on. In order to improve image quality continuously, especially for high end 8K TV products, we have developed a total negative LC (N‐LC) solution with rubbing alignment process. This total solution includes high CR negative LC material, rubbing PI material and process, and high‐transparent pixel ITO design. Based on this total solutions, TR has been increased by 30% for 8K LCDs. CR has been increased from 1400 to 2500:1 for 8K and 3000:1 for 4K LCDs. Meanwhile, this solution keep response time (RT) and reliability of image sticking (I/S) can meet the regular specifications.

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Section: Response Time Optimizationmentioning

confidence: 99%

34‐6: Invited Paper: High Image Quality of 8K TV LCDs with Negative LC

Chen

Huang

Shao

et al. 2022

Symp Digest of Tech Papers

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“…In recent years, there have been significant developments in higher mobility oxide material systems such as indium gallium tin oxide (IGTO), indium gallium zinc tin oxide (IGZTO), indium gallium oxide (IGO), and other high mobility materials. These high mobility oxide materials bring improvements in refresh rate and resolution while reducing power consumption and bezel size [4]. Although the currently announced high mobility oxide TFTs can bring significant improvements in product performance, it also brings rapid deterioration in TFT stability, such as significant negative Vth shift in the device under light conditions.…”

Section: Introductionmentioning

confidence: 99%

P‐14: High Mobility and High Light Stability Oxide Back‐Channel‐Etched TFT and Application to High‐End LCD NB Production

Huang,

Yuan,

et al. 2024

Symp Digest of Tech Papers

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A high mobility (29 cm2 /Vs) and high light stability oxide thin‐film transistor (TFT) with 8 mask back channel etched (BCE) structure has been fabricated. Remarkable enhancement in negative gate‐bias thermal stress with illumination has been achieved, resulting in a threshold voltage (Vth) shift of ‐0.01 V after 1 hour. A 16.0 inch WQHD 240Hz LCD NB has been developed using high mobility and high light stability oxide TFT in G8.5.

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“…Compared with 2K and 4K display products, the 8K display sets higher requirements for the liquid crystal materials ( Table 1 ). Firstly, as the resolution increases from 4K to 8K, the width and length of the sub-pixel become 1/4 of the original pixel, which lowers the aperture ratio and reduces transmittance by about 40% [ 9 , 10 , 11 , 12 ]. Consequently, the transmittance of 8K liquid crystal material needs to be 4–6% higher than that of 2K liquid crystal material.…”

Section: Introductionmentioning

confidence: 99%

Negative Dielectric Anisotropy Liquid Crystal with Improved Photo-Stability, Anti-Flicker, and Transmittance for 8K Display Applications

Chen

Liu²,

Chen³

et al. 2022

Molecules

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Video systems such as 8K displays can provide a strong sense of presence and reality due to their extremely high resolution and wide field of view. However, high-resolution displays generally suffer from reduced transmittance, which requires the use of liquid crystals with high transmittance and high stability. In this study, negative dielectric anisotropy liquid crystal compositions with excellent photo-stability, anti-flicker capability, and high transmittance are developed, showing potential for 8K display applications. The stability of different types of negative dielectric anisotropy liquid crystal compounds is assessed under light, and the high photo-stability compounds are obtained. In addition, it is demonstrated that the flicker can be optimized from −17.6 to −47.0 by removing the compounds with a higher ion content and a larger deformation number and adding the compounds with a smaller deformation number in the negative dielectric anisotropy liquid crystal compositions. Combining with the evaluation of the factors affecting the response time, the negative dielectric anisotropy liquid crystal mixed H is designed with improved stability and flicker; thus, the response time was decreased to 9.5 ms, and the optical transmittance was 5.5% higher than that of MAT-09-1284 (for normal) and 3.1% higher than that of BY19-J01A (for 4K).

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59‐4: Late‐News Paper: High Transmittance and High Charging Rate 8K 120Hz ADS LCD TV

Cited by 8 publications

References 3 publications

34‐6: Invited Paper: High Image Quality of 8K TV LCDs with Negative LC

34‐6: Invited Paper: High Image Quality of 8K TV LCDs with Negative LC

P‐14: High Mobility and High Light Stability Oxide Back‐Channel‐Etched TFT and Application to High‐End LCD NB Production

Negative Dielectric Anisotropy Liquid Crystal with Improved Photo-Stability, Anti-Flicker, and Transmittance for 8K Display Applications

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