• Proceedings of the Optical Society of Korea Conference
• /
• 2009.02a
• /
• pp.349-350
• /
• 2009

• Proceedings of the Optical Society of Korea Conference
• /
• 1997.08a
• /
• pp.56-56
• /
• 1997

• Proceedings of the IEEK Conference
• /
• 2003.07b
• /
• pp.1149-1152
• /
• 2003

Now a days, many different kinds of display technologies such as Liquid Crystal Display (LCD), Organic Light Emitting Diode (OLED), and Liquid Crystal On Silicon (LCOS) are designed. And these display technologies will be used in many application products like High Definition Televisions (HDTVs) or mobile devices. In this paper, pattern generation circuit for display test is proposed. The proposed circuit will be embedded in the control circuit of display chip. Two differenct kinds of patterns is generated by the circuit. One is block pattern for color test, and the other is line pattern for pixel test. The shape of test pattern is determined by the values of registers in pattern generation circuit. The circuit is designed using Verilog HDL RTL code.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2009.10a
• /
• pp.218-220
• /
• 2009

We proposed an enhanced substrate-assembling technique using adhesive patterned spacers for flexible liquid crystal displays (LCDs). The negative photoresister was used for the rigid columnar spacers and the strong substrate-bonding agent. The proposed technique is expected to be a good candidate for manufacturing method of flexible LCDs.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2009.10a
• /
• pp.91-94
• /
• 2009

We propose advanced liquid crystal display (LCD) modes through surface modification using UV curable reactive mesogen (RM) mixed with alignment layers. The LC directors on the modified alignment layer are controlled and memorized by the polymerized RMs under an applied voltage. Using the method proposed here, we can improve the response time and viewing angle characteristics through surface controlled patterned vertical alignment (SC-PVA) mode and 8-domains PVA mode, respectively. Also, we found that the method can be applicable to fabricate multi-domain structures using multiple UV exposure as same as conventional UV alignment method.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2008.10a
• /
• pp.681-684
• /
• 2008

Motion interpolation is adopted and has been spread widely into market since it is effective in reducing motion blur, which is considered as weak characteristic due to slow response time of liquid crystal and hold-type display. 120Hz driving using interpolated frames achieves better moving picture quality with less motion blur and less motion judder. However, errors in the interpolated frames can cause visual artifacts such as static text breakup, halos, and occlusions. This paper focuses on categorizing characteristics of visual artifacts and on reducing side-effects by using information from original frames in special cases.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2000.01a
• /
• pp.11-12
• /
• 2000

An 18.1" Thin Film Transistor Liquid Crystal Display (TFT LCD) monitor adopting high brightness In Plane Switching (IPS) technology was realized. While conventional IPS structure used a Chromium (Cr) and Molybdenum (Mo) for a drain electrode, Indium Tin Oxide (ITO) was proposed and verified in this paper. Black sticky micropeal spacers were introduced for the reduction of light scattering phenomena, which was observed at dark room with the conventional micropeal spacers. With the proposed method, more than 10 % aperture ratio was increased and the excellent image quality was obtained.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2013.05a
• /
• pp.275-276
• /
• 2013

• 한국정보디스플레이학회:학술대회논문집
• /
• 2003.07a
• /
• pp.1104-1107
• /
• 2003

Normally white TN-LCD is the preferred solution in active matrix display thanks to easy production, fast response and good white balance. However, it is has poor viewing angle properties and correction films are difficult to design. We present the mathematics of designing a compensating film and discuss various technological solutions for making

• 한국정보디스플레이학회:학술대회논문집
• /
• 2009.10a
• /
• pp.76-78
• /
• 2009

A liquid crystal display that does not use color filters is proposed. A backlight unit that employs compartmentalized RGB LED arrays and a lenticular lens array is used instead of the color filters in order to direct RGB LED lights into the RGB subpixels. A design of color-filterless LED backlight and experimental results are presented.