Lg Electronics Inc.

Lg Philips Lcd Co., Inc.

Lg Display Co., Ltd.

Kyoung Nam Lim

Jeong Hyun Kim

Woong Kwon Kim

Jae Yong Park

Sang Ho Lee

Young Jin Oh

Sung Il Park

Min Cheol Shin

Dong Hyo Gu

Su Woong Lee

Hong Man Moon

Ji Hyun Jung

Jin Kyu Kang

A liquid crystal display device and a fabricating method thereof for securing aperture ratio are disclosed. In the liquid crystal display device, a gate line is formed. A data line crosses the gate line. A thin film transistor is provided at an intersection of the gate line and the data line. A semiconductor pattern is overlapped with the data line under the data line, and includes an active layer of the thin film transistor. A step coverage does not exist between an etched edge surface of the semiconductor pattern disposed at a lower portion of the data line and an etched edge surface of the data line.

Liquid crystal display device and method for fabricating the same

A liquid crystal display (LCD) device includes a first substrate having first and second regions thereon, the first region having a step coverage higher than a step coverage of the second region, a second substrate bonded to the first substrate, the second substrate having a first column spacer corresponding to the first region of the first substrate and a second column spacer corresponding to the second region of the first substrate, and a liquid crystal layer between the first and second substrates.

Liquid crystal display device and method of fabricating the same

A method of fabricating a liquid crystal display device includes forming a thin film transistor array on an active area of a first substrate, forming a color filter layer and a black matrix layer on a second substrate, forming a sealant along a peripheral portion of the second substrate, bonding the first and second substrates, and hardening the sealant by exposure to light, wherein the black matrix layer and the sealant are offset and do not overlap each other.

Method of fabricating liquid crystal display device

A liquid crystal display device includes a first substrate including a plurality of data bus lines, a plurality of gate bus lines, and a plurality of thin film transistors at cross points of the plurality gate bus lines and the plurality of gate bus lines; a second substrate including a color filter layer; at least one shielding layer for shielding an outer induced electric field; and a liquid crystal layer sandwiched between the first substrate and the second substrate.

Liquid crystal display device

A method for manufacturing a liquid crystal display having a TFT functioning as a switching element and a passivation layer covering the TFTs and a pixel electrode connected to an output electrode of the TFT on the passivation layer, the method including the steps of coating a photo resist on the passivation layer so that the photo resist has a thickness of more than about 1.2 times of the passivation layer, patterning the photo resist to have a predetermined shape, etching the passivation layer according to the patterned photo resist, removing the remaining photo resist and treating the surface of the passivation layer to be a SiO thin layer on the passivation layer using O gas, forming a pixel electrode on the passivation layer by depositing and patterning an ITO layer.

Liquid crystal display device with an organic insulating layer having a uniform undamaged surface

A method for manufacturing a liquid crystal display has a TFT functioning as a switching elements, a passivation layer covering the TFT and a pixel electrode connected to an output electrode of the TFT on the passivation layer. The method includes coating a photoresist on the passivation layer so that the photoresist has a thickness of more than about 1.2 times the passivation layer. The photoresist is patterned to have a predetermined shape, and the passivation layer is etched according to the patterned photoresist. The remaining photoresist is removed, and treating the surface of the passivation layer with O yields a SiO thin layer on the passivation layer. A pixel electrode is formed on the passivation layer by depositing and patterning an ITO layer.

Method for manufacturing an LCD in which a photoresist layer is at least 1.2 times thicker than the passivation layer

The present invention is to provide a manufacturing method and a structure of an LCD which prevents a pixel electrode from being disconnected or being peeled off thinly from the drain electrode. The bottom plate of an active matrix type LCD comprises a protection layer which covers the switching element, a contact hole for exposing the output terminal of the switching element through the protection layer and the pixel electrode which contacts the output terminal of the switching element through the contact hole and which is formed on the protection layer. Specifically, the contact hole is located in a distance of at least 5 &mgr;m inwards from the edge of the pixel electrode. Therefore, disconnection or peel off of the pixel electrode from the drain electrode due to cracking of the pixel electrode occurring during the process of baking at a high temperature is prevented.

Liquid crystal display device and method for manufacturing the same

The present invention is directed to a method for forming a color filter panel of a liquid crystal display device, including the steps of forming a first black matrix (BM) array on a substrate, the first BM array including a plurality of first horizontal BM strips and a plurality of first vertical BM strips; forming a plurality of color filters on the substrate; forming a second BM array on the first BM array; and forming a common electrode on the substrate. Further, the present invention is directed to a color filter panel of a liquid crystal display device, including a substrate; a first BM array formed on a substrate, the first BM array including a plurality of first horizontal BM strips and a plurality of first vertical BM strips; a plurality of color filters formed on the substrate; a second BM array formed on the first BM array; and a common electrode formed on the substrate.

Color filter panel of a liquid crystal display and method of

A device and method for manufacturing a high aperture ratio color filter panel of a liquid crystal display by reducing the resistance of the common electrode is disclosed. The method includes the steps of forming a black matrix array on a substrate, the black matrix array including a plurality of horizontal black matrix strips and a plurality of vertical black matrix strips, forming a plurality of color filters on the substrate, and the horizontal black matrix strips, so that portions of the horizontal black matrix strips are exposed, and forming a common electrode over the color filters.

Color filter panel of an LCD device

Liquid crystal display device having transparent conductive layer

A device and method for manufacturing a high aperture ratio color filter panel of a liquid crystal display device by reducing the resistance of the common electrode is disclosed. The method includes the steps of forming a black matrix array on a substrate, the black matrix array including a plurality of horizontal black matrix strips and a plurality of vertical black matrix strips, forming a plurality of color filters on the substrate, and the horizontal black matrix strips, so that portions of the horizontal black matrix strips are exposed, and forming a common electrode over the color filters.

Color filter panel of an LCD device and method of Manufacturing the same

A method of fabricating a liquid crystal display device having a substrate includes the steps of forming a gate electrode on the substrate, forming a gate insulating layer on the gate electrode, forming a semiconductor layer on the gate insulating layer, forming source/drain electrodes on the semiconductor layer, forming a pixel electrode on the source/drain electrodes including the gate insulating layer, forming a passivation layer on the pixel electrode including the source/drain electrodes, forming a light shielding layer on the passivation layer, forming an alignment layer on the light shielding layer including the passivation layer, and determining an alignment direction by exposing the alignment layer to a light.

Method of fabricating liquid crystal display device having alignment

A method of manufacturing an active panel of a liquid crystal display reduces the steps of a masking process and prevents line disconnection of a conductive material forming a pixel electrode which is caused by undercutting and eliminates a stepped profile formed during the etching processes. Materials forming a gate insulating layer, a semiconductor layer, an impurity doped semiconductor layer, and source and drain electrodes are sequentially deposited on a substrate. The source and drain electrodes are formed. Then, the semiconductor layer and the gate insulating layer are simultaneously formed. Thus, the mask processes in the method are reduced. However, this method results in a severe stepped profile caused by simultaneously etching the materials under the source and drain electrodes during the step of forming the source and drain electrode. As a result, line disconnection occurs due to the stepped profile during the forming step of a pixel electrode. In order to prevent this problem, a protection layer made of an organic material is formed prior to the step of forming the pixel electrode, resulting in a smooth surface and elimination of line disconnecting.

Growing community of inventors

Kyongsangbuk-do, South Korea

Kyoung Nam Lim