Samsung Display Co., Ltd.

Dan Bi Yang

Ki Chul Shin

Ji Phyo Hong

Min-Joo Han

Hoon Bae Kim

Hoon Sik Kim

Jae Hoon Jung

Hyo Sik Kim

Min Ju Han

Su Jeong Kim

Heung Shik Park

Jae-Hoon Jung

Hee Hwan Lee

Kyu Su Ahn

Min Joo Han

Cheol Kyu Shin

Ho Kil Oh

Ka Eun Kim

Ki Chui Shin

A liquid crystal display includes: a first pixel and a second pixel for displaying different colors, the first pixel and the second pixel each including a first sub-pixel electrode receiving a first voltage; a second sub-pixel electrode receiving a second voltage; an insulating layer disposed between the first sub-pixel electrode and the second sub-pixel electrode; and a common electrode receiving a common voltage. A first portion of the first sub-pixel electrode and a second portion of the second sub-pixel electrode overlap each other, a difference between the first voltage and the common voltage is larger than a difference between the second voltage and the common voltage, and a ratio of the second voltage to the first voltage for the first pixel is different from a ratio of the second voltage to the first voltage for the second pixel.

Liquid crystal display having improved color display

A liquid crystal display includes a first substrate, pixel electrodes disposed on the first substrate and including a first sub-pixel electrode and a second sub-pixel electrode separated from each other and positioned in one pixel area, gate lines connected to the pixel electrodes, data lines connected to the pixel electrodes, reference voltage lines connected to the second sub-pixel electrode of the pixel electrodes, a second substrate facing the first substrate, a common electrode disposed on the second substrate, and a liquid crystal layer positioned between the first substrate and the second substrate and including liquid crystal molecules, a first initial pretilt angle of the liquid crystal molecules corresponding to the first sub-pixel electrode for the second substrate surface is larger than a second initial pretilt angle of the liquid crystal molecules corresponding to the second sub-pixel electrode for the second substrate surface.

Liquid crystal display and manufacturing method of the same

A liquid crystal display includes a first gate line, a first data line, and a first pixel. The first pixel includes: a first subpixel including a first thin film transistor connected to the first gate line and data line, and a first liquid crystal capacitor, wherein a first terminal of the first liquid crystal capacitor is electrically connected to the first thin film transistor and a second terminal of the first liquid crystal capacitor is configured to receive a common voltage; and a second subpixel including a second thin film transistor connected to the first gate line and data line, a second liquid crystal capacitor, wherein a first terminal of the second liquid crystal capacitor is configured to receive the common voltage, and a thin film transistor resistor electrically connected between the second thin film transistor and a second terminal of the second liquid crystal capacitor.

Liquid crystal display

A liquid crystal display ('LCD') device includes: a first display panel including a first substrate, a first pixel electrode disposed on the first substrate, and a second pixel electrode disposed on the first substrate and insulated from the first pixel electrode; a second display panel including a second substrate opposite to the first substrate, and a common electrode disposed on the second substrate; and a liquid crystal layer disposed between the first and second display panels and including a plurality of liquid crystal molecules. In a black state, no voltage is applied to the common electrode and an electric field is generated between the first and second pixel electrodes in a way such that the liquid crystal molecules are aligned in a vertical direction with respect to the first substrate.

Liquid crystal display device

A liquid crystal display includes: a first substrate; a gate line and a data line disposed on the first substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode positioned on the first substrate, connected to the thin film transistor, configured to be applied with a first voltage, and including a first sub-pixel electrode including a first sub-region and a second sub-region and a second sub-pixel electrode configured to be applied with a second voltage; a protrusion electrode protruding from the pixel electrode to overlap the data line; and an insulating layer positioned on the first sub-region of the first sub-pixel electrode and positioned under the second sub-pixel electrode and the second sub-region of the first sub-pixel electrode, wherein the first sub-region of the first sub-pixel electrode overlaps the second sub-pixel electrode.

A display device includes: a common electrode and a pixel electrode that includes a horizontal stem, a vertical stem, and a branch. A pixel of the branch includes a first branch that extends in a first diagonal direction from the horizontal stem and the vertical stem, and a second branch that extends in a second diagonal direction from the horizontal stem and the vertical stem.

Display device and a method for driving the same

A liquid crystal display includes a first substrate, a gate line and a data line disposed on the first substrate, a first thin film transistor and a second thin film transistor connected to the gate line and the data line, a first subpixel electrode connected to the first thin film transistor, a resistor connected to the second thin film transistor and a resistance of the resistor is changed by a pulsed gate-on signal applied to the gate line, and a second subpixel electrode connected to the resistor.

A liquid crystal display includes: a first substrate; a gate line disposed on the first substrate; an insulating layer disposed on the gate line; and first and second subpixel electrodes respectively including pixel branch electrodes, wherein the first and second subpixel electrodes respectively comprise first and second regions, the first and second regions of the first subpixel electrode have a polygonal shape where two sides meet in a diagonal line, and one of sides of the polygon, excluding the diagonal line, is perpendicular to the gate line, the first and second regions of the second subpixel electrode have grooves disposed at one of sides thereof corresponding to the shape of the first subpixel electrode, the first and second regions of the first subpixel electrode are connected with each other, and the first and second regions of the second subpixel electrode are connected with each other.

There is provided a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode. The first subpixel electrode includes a first cross stem portion positioned in a first subpixel region and first minute branches extending from the first cross stem portion, and includes first and second body portions that are positioned in a third subpixel region and separated from each other, and a plurality of first and second slit portions that extend from the first and second body portions, respectively. The second subpixel electrode includes a second cross stem portion positioned in a second subpixel region and second minute branches that extend from the second cross stem portion, and includes a third cross stem portion positioned in a third subpixel region and third minute branches that extend from the third cross stem portion.

A liquid crystal display device includes: a first substrate for which a single pixel includes: first, second and third thin film transistors on the first substrate; a pixel electrode including a first subpixel electrode and a second subpixel electrode which are connected to the first thin film transistor and the second thin film transistor, respectively; and a divided reference voltage line connected to the third thin film transistor; a second substrate facing the first substrate; a common electrode on the second substrate; and a liquid crystal layer between the pixel electrode and the common electrode and including liquid crystal molecules. The third thin film transistor includes an electrically floating gate electrode, a source electrode defined by an extended portion of a terminal of the second thin film transistor, and a drain electrode defined by an extended portion of the divided reference voltage line.

Liquid crystal display device including switching element with floating terminal

A liquid crystal display includes: a first subpixel electrode disposed on a first substrate; an insulating layer disposed on the first subpixel electrode; a second subpixel electrode disposed on the insulating layer; and a common electrode disposed on a second substrate, the second substrate facing the first substrate. The first subpixel electrode is overlapped with a portion of the second subpixel electrode, and the first subpixel electrode and the second subpixel electrode are configured to receive substantially the same electric potential.

A liquid crystal display including a first substrate, a first sub-pixel electrode on the first substrate and configured to receive a first voltage, a second sub-pixel electrode on the first substrate and configured to receive a second voltage, an insulating layer between the first sub-pixel electrode and the second sub-pixel electrode, a second substrate facing the first substrate, and a common electrode on the second substrate, wherein the first sub-pixel electrode includes a first sub-region below the insulating layer and a second sub-region above the insulating layer, wherein the second sub-region of the first sub-pixel electrode includes a plurality of first branch electrodes, wherein the second sub-pixel electrode is above the insulating layer, and wherein a difference between the first voltage and a common voltage is greater than a difference between the second voltage and the common voltage.

A liquid crystal display includes a first substrate, a pixel electrode formed on the first substrate, a second substrate facing the first substrate, and a common electrode formed on the second substrate. The pixel electrode includes a first subpixel electrode disposed in a first subpixel region, and a second subpixel electrode disposed in a second subpixel region. A first voltage applied to the first subpixel electrode and a second voltage applied to the second subpixel electrode are different from each other, and a ratio of the first voltage to the second voltage is about 0.76 to about 0.80.

Liquid crystal display having reduced image quality deterioration and an improved viewing angle, and a method of driving the same

Provided is a liquid crystal display including: a first substrate; a first subpixel electrode which is positioned on the first substrate, to which a first voltage is configured to be applied, and which includes first and second subregions; a second subpixel electrode which is positioned on the first substrate, to which a second voltage is configured to be applied, and which includes a third, fourth, and fifth subregions; an insulating layer which is positioned on the first subregion and the third subregion and positioned below the second subregion and the fourth and fifth subregions; a second substrate facing the first substrate; a common electrode which is positioned on the second substrate and to which a common voltage is configured to be applied; and a liquid crystal layer positioned between the first substrate and the second substrate, in which the first subregion and the fourth subregion overlap with each other.

Growing community of inventors

Gunpo-si, South Korea

Dan Bi Yang