Viewing Angle Switching in Fringe-Field Switching Liquid Crystal Display

Lim, Young Jin; Jeong, Eun; Kim, Youn Sik; Jeong, Yeon Ho; Jang, Won; Lee, Seung Hee

doi:10.1080/15421400802432626

Cited by 24 publications

(20 citation statements)

References 14 publications

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“…In the third method, the viewing angle is controlled by one panel and each pixel is divided into two parts: a main pixel and a subpixel. The main pixels display the images and the subpixels control the viewing angle [22][23][24]. However, the resolution of the display and the on-axis luminance are decreased by using the subpixels.…”

Section: Introductionmentioning

confidence: 99%

Dual-view angle backlight module design

Chen

Pan

2015

Appl. Opt.

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We propose a bilayer light guide plate (BLGP) with specially designed microstructures and two light source modules to achieve an adjustable viewing angle backlight for ecofriendly displays. The dual viewing angle backlight module has a thin, simple structure and a high optical efficiency. Comparison with the conventional edge-lit backlight module shows an improvement in the on-axis luminance of the narrow viewing angle mode of 4.3 times and a decrease in the half-luminance angle of 7° in the horizontal direction. When using the wide viewing angle mode, there is an improvement in the on-axis luminance of 1.8 times and an improvement in the half-luminance angle of 54° in the horizontal direction. The uniformity of illuminance can reach 80% in each mode. The backlight optical sheet number is reduced from 5 to 1.

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Section: Introductionmentioning

confidence: 99%

Dual-view angle backlight module design

Chen

Pan

2015

Appl. Opt.

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“…Many related research on the viewing-angle switching technology of liquid crystal display (LCD) device have been reported, [1][2][3][4][5][6][7] but it is still a technological challenge about one viewing-angle controllable (VAC) liquid crystal (LC) panel which possess the mass conditions, such as the conveniences of production, low cost, and so on. There are various methods to realize a narrow viewingangle (NVA) of LCD with the privacy protection.…”

Section: Introductionmentioning

confidence: 99%

Improvement of off‐axis color shift on hybrid viewing‐angle device using dual γ‐voltage method

et al. 2019

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We have mass production on one kind of liquid crystal display (LCD) device with hybrid viewing‐angle (HVA), which can be switched between the wide viewing‐angle (WVA) and narrow viewing‐angle (NVA) by one button. This device adopts the single cell design that with lower cost, and utilizes the optical properties of electrically tilted LC to achieve the function of NVA display. An issue has received less attention in the past and been indeed found in the production process. It is that the off‐axis color shift will appear in NVA mode. We put forward one method to improve this issue here, which is combined with the concepts of Gray Frame Insertion (GFI) and Impulse‐type driving. By switching the voltage between two different γ values, the color shift will be perfected on the produce.

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“…Namely, people can share information when the display is in WVA mode, and they can secure information when the display is in narrow viewing angle (NVA) mode. To realize this feature, many viewing angle switchable displays have been proposed. On one hand, because of the use of traditional liquid crystals, some viewing angle switchable displays have high transmittance and low operating voltage; however, the vertical viewing angle of these displays cannot be controlled well.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, the viewing angle switchable display using blue‐phase liquid crystals (BPLCs) have high operating voltage and relatively low transmittance. So, these displays have some disadvantages, such as high operating voltage, relatively low transmittance, and bad viewing angle switchable characteristics …”

Section: Introductionmentioning

confidence: 99%

Viewing angle switchable blue‐phase liquid crystal display with low voltage and high transmittance

Yuan

Cui

et al. 2012

J Soc Info Display

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-We propose a viewing angle switchable blue-phase liquid crystal display with low voltage and high transmittance. In this device, in-plane protrusions are used to lower operating voltage and improve the transmittance. Besides, the top electrode can control viewing angle of the proposed display. When no voltage is applied to the top electrode, the display shows wide viewing angle mode. On the contrary, this display shows narrow viewing angle mode. So, this device exhibits low operating voltage, high transmittance, and good viewing angle controllable characteristics.Keywords -blue-phase, viewing angle switchable display, wide viewing angle mode, narrow viewing angle mode.

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Viewing Angle Switching in Fringe-Field Switching Liquid Crystal Display

Cited by 24 publications

References 14 publications

Dual-view angle backlight module design

Dual-view angle backlight module design

Improvement of off‐axis color shift on hybrid viewing‐angle device using dual γ‐voltage method

Viewing angle switchable blue‐phase liquid crystal display with low voltage and high transmittance

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