Abstract:
Disclosed is a transmissive and reflective type LCD. In the LCD, a second substrate faces a first substrate. Liquid crystal layer is formed between the first and second substrate. A first polarizing plate is formed on outer surface of the first substrate. A second polarizing plate is formed on outer surface of the second substrate. A backlight is arranged at a rear side of the first polarizing plate. A transparent transflective film is arranged between the first polarizing plate and the backlight and has a plurality of layers where a first and a second layer each having different refractivity indexes are alternatively stacked. The transparent transflective film partially reflects and transmits incident light. By a restoring process occurring between the transflective film and the backlight, a predetermined amount of the incident light is transmitted through the transflective film repeatedly, so that transmissivity and light efficiency are enhanced.
Abstract:
In an LCD apparatus, a reflecting plate, which is formed on a pixel electrode connected to a switching device formed on an array substrate, defines a reflecting area from which a natural light is reflected and a transmitting area through which an artificial light is transmitted. The reflecting plate is partially extended to and overlapped with the transmitting area depending upon a rubbing direction of the array substrate. Thus, the reflective-transmissive type LCD apparatus may prevent occurrence of the afterimage, and may enhance a contrast ratio thereof when operated in a transmissive mode.
Abstract:
A liquid crystal display, in accordance with the present invention, includes a first substrate having a thin film transistor and a first electrode formed thereon. The first electrode is electrically connected to the thin film transistor. A first insulating layer is formed on the first substrate including the thin film transistor and the first electrode and a window is formed in the first insulating layer, the window exposing a predetermined region of the first electrode. A second electrode is provided on the first insulating layer and electrically connected to the first electrode. A second substrate includes a third electrode formed thereon. A first gap is formed between a surface of the third electrode and a surface of the predetermined region of the first electrode, and a second gap is formed between the surface of the third electrode and a surface of the second electrode. A liquid crystal layer is interposed between the first gap and the second gap. Other embodiments are included as well as methods for forming the liquid crystal display of the present invention.
Abstract:
In a liquid crystal display apparatus, a lower substrate has a transmissive electrode formed in a transmissive area of a first substrate and a reflective electrode formed in a reflective area of the first substrate. An upper substrate has a second substrate, a first insulating layer formed on the second substrate corresponding to the transmissive area, a common electrode formed on the first insulating layer and the second substrate corresponding to the reflective area, and a second insulating layer formed on the common electrode corresponding to the reflective area. Accordingly, the liquid crystal display apparatus may have a uniform cell gap, thereby improving a reflectance and a transmittance thereof.
Abstract:
Disclosed is a method for forming a photosensitive insulating film pattern and a reflection electrode each having an uneven upper surface, and a method for manufacturing an LCD having a reflection electrode using the same. A photosensitive insulating film is formed on a first substrate on which a first electrode having a reflection property is formed. The photosensitive insulating film is exposed to a light. The exposed photosensitive insulating film is developed to form an uneven surface with prominences and recesses. The reflection electrode is formed on the photosensitive insulating film. A second substrate having a transparent electrode is formed to face the first substrate. A liquid crystal layer is sandwiched between the first substrate and the second substrate. A first amount of light of the light scanned between first patterns corresponding to an upper portion of the first electrode is smaller than a second amount of light thereof scanned between second patterns corresponding to a portion other than the first electrode. The dents or grooves formed at the photosensitive insulating film and the entire surface of the reflection electrode formed on the photosensitive insulating film have the same depth, to thereby improve the reflection efficiency throughout the entire area of the display region.
Abstract:
An LCD device having improved connection stability concerning a COG, a COF or an FPC and a method for manufacturing the LCD device are disclosed. A pixel including a TFT as a switching device is formed at a central portion corresponding to an active region of a substrate. A gate and a data input pads are formed at a peripheral portion corresponding to a pad region of a substrate. An organic insulation layer is formed on the whole surface of the substrate having the TFT the pads thereon. A rugged structure is formed on the organic insulation layer for forming a rugged reflection electrode by exposing and developing the organic insulation layer. An organic insulation layer is formed to reduce a step between the pads and the portion adjacent to the pads. A single organic insulation layer or double organic insulation layers can be formed. A connection failure between the pads and the COG, the COF or the FPC can be greatly reduced since the height difference of the organic insulation layer between the pads the portion adjacent to the pads can be minimized through the exposing and the developing processes. Also, an electrical short between the pads can be prevented because the organic insulation layer is interposed between the pads.