• 한국정보디스플레이학회:학술대회논문집
• /
• 2003.07a
• /
• pp.215-218
• /
• 2003

We have developed a reflective 3.5" QVGA color TFT-LCD with high reflection within viewing angle. For this, We have introduced new pixel design and asymmetric reflector. Based on these technical concepts, we get a high aperture ratio of 93.5% and much higher reflection up to 64% with a 3.5" prototype panel.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2003.07a
• /
• pp.701-701
• /
• 2003

• 한국정보디스플레이학회:학술대회논문집
• /
• 2005.07a
• /
• pp.294-296
• /
• 2005

We developed new WV-TN panel which has 170/170 viewing angle and 8ms response time. This viewing characteristics almost catch up with those of VA. To extend the viewing angle we optimized the cell design and LC parameters. This new technology strongly increase the demand of TN monitors especially for the monitor market larger than 19"

• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08b
• /
• pp.1497-1499
• /
• 2007

Visual perception experiments were conducted to determine the acceptable limit of the contrast ratio of LCD TV under the watching condition. The results showed that the corresponding contrast ratio should be below 10,000:1 at the 3H(height of screen) distance in the living room environment.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2008.10a
• /
• pp.295-298
• /
• 2008

We developed a novel PVA pixel design for mobile application with excellent off-axis image quality and optical performance by introducing Active Level Shift technology and optimizing pixel structure. Our new pixel design enables better off-axis image quality without sacrificing other optical properties compared with a conventional mPVA structure.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2006.08a
• /
• pp.463-465
• /
• 2006

We have developed the VIC (Viewing-angle Image Control) TFT-LCD, which can change viewing-angle from $80^{\circ}$ to $170^{\circ}$. This display has the same thickness and weight as existing TFT-LCD, because it is made of only single LC cell without additional components. Moreover, we developed ways to protect effectively the displayed information in narrow viewing angle mode.

• Information Display
• /
• v.3 no.5
• /
• pp.24-26
• /
• 2002

• Information Display
• /
• v.2 no.1
• /
• pp.36-44
• /
• 2001

• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08b
• /
• pp.1071-1074
• /
• 2007

6Mask CMOS process in low temperature polycrystalline silicon thin film transistors (poly-Si TFTs) has been developed and verified by manufacturing a 6Mask CMOS AMLCD panel. The novel 6Mask CMOS process is realized by eliminating the storage mask, gate mask and via open mask of conventional structure.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2008.10a
• /
• pp.1156-1159
• /
• 2008

Local dimming driving has advantages in reducing power consumption and improving contrast ratio(CR). In an LED backlight unit(BLU), many small LED blocks are implemented in 2-dimmensional space, and luminance of the blocks is controlled by a local dimming algorithm. However, such a BLU can induce various recognizable artifacts. A new novel algorithm is proposed for exact block luminance calculation to correct local dimming artifacts. Also we discuss modified low-gray-level dimming to achieve much aggressive power saving in a local dimming BLU system.