Liquid crystal display having wide viewing angle
First Claim
Patent Images
1. A liquid crystal display comprising:
- a first substrate comprising a common electrode;
a second substrate opposite the first substrate;
a pixel electrode formed on the second substrate;
a black matrix pattern formed along a boundary of a plurality of pixel regions defined on the first substrate substantially in a matrix form;
a light shielding part formed on the second substrate, and disposed inside the pixel region and under the pixel electrode;
a first domain divider and a second domain divider formed in each pixel region on at least one of the first substrate and the second substrate; and
a liquid crystal layer comprising liquid crystal molecules having negative dielectric anisotropy and aligned substantially in a vertical direction to the first substrate when no electric field is applied to the liquid crystal layer, and the liquid crystal layer being interposed between the pixel electrode and the common electrode, and divided into a plurality of domain areas by the first domain divider and the second domain divider inside the pixel region when an electric field is applied to the liquid crystal layer,wherein the first domain divider and the second domain divider in each pixel region are linear, respectively, are arranged substantially in a shape of chevron and are slantingly extended with respect to the gate line or the data line, respectively,wherein shapes collectively defined by the first domain divider and the second domain divider in adjacent pixel regions in a pixel row direction are different from each other, andwherein at least one of the first and the second domain dividers is arranged in a parallel direction with an extending direction of the light shielding part.
2 Assignments
0 Petitions
Accused Products
Abstract
Apertures are formed in the common electrode or in the pixel electrode of a liquid crystal display to form a fringe field. Storage capacitor electrodes are formed at the position corresponding to the apertures to prevent the light leakage due to the disclination caused by the fringe field. The apertures extend horizontally, vertically or obliquely. The apertures in adjacent pixel regions may have different directions to widen the viewing angle.
-
Citations
29 Claims
-
1. A liquid crystal display comprising:
-
a first substrate comprising a common electrode; a second substrate opposite the first substrate; a pixel electrode formed on the second substrate; a black matrix pattern formed along a boundary of a plurality of pixel regions defined on the first substrate substantially in a matrix form; a light shielding part formed on the second substrate, and disposed inside the pixel region and under the pixel electrode; a first domain divider and a second domain divider formed in each pixel region on at least one of the first substrate and the second substrate; and a liquid crystal layer comprising liquid crystal molecules having negative dielectric anisotropy and aligned substantially in a vertical direction to the first substrate when no electric field is applied to the liquid crystal layer, and the liquid crystal layer being interposed between the pixel electrode and the common electrode, and divided into a plurality of domain areas by the first domain divider and the second domain divider inside the pixel region when an electric field is applied to the liquid crystal layer, wherein the first domain divider and the second domain divider in each pixel region are linear, respectively, are arranged substantially in a shape of chevron and are slantingly extended with respect to the gate line or the data line, respectively, wherein shapes collectively defined by the first domain divider and the second domain divider in adjacent pixel regions in a pixel row direction are different from each other, and wherein at least one of the first and the second domain dividers is arranged in a parallel direction with an extending direction of the light shielding part. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A liquid crystal display comprising:
-
a first substrate comprising a common electrode; a second substrate opposite the first substrate; a pixel electrode formed on the second substrate; a black matrix pattern formed along a boundary of a plurality of pixel regions defined on the first substrate substantially in a matrix form; a branch electrode formed on the second substrate, overlapping the pixel electrode and extending in a first direction; a storage capacitor electrode formed on the second substrate, disposed inside the pixel region and under the pixel electrode, electrically connected to the branch electrode and extended in a slanting direction with respect to the first direction; a first domain divider and a second domain divider formed in each pixel region on at least one of the first substrate and the second substrate; and a liquid crystal layer comprising liquid crystal molecules having negative dielectric anisotropy and aligned substantially in a vertical direction to the first substrate when no electric field is applied to the liquid crystal layer, the liquid crystal layer being interposed between the pixel electrode and the common electrode and divided into four different domain areas by the first domain divider and the second domain divider inside the pixel region when electric field is applied to the liquid crystal layer, wherein the first domain divider and the second domain divider in each pixel region are linear, respectively, are arranged substantially in a shape of chevron and extended in a slanting direction with respect to the first direction, and wherein shapes collectively defined by the first domain divider and the second domain divider in adjacent pixel regions in a pixel row direction are different from each other. - View Dependent Claims (8, 9, 10, 11)
-
-
12. A liquid crystal display comprising:
-
a first substrate comprising a common electrode; a second substrate opposite the first substrate; a plurality of data lines extended in a first direction; a plurality of gate lines extended in a second direction perpendicular to the first direction; a pixel electrode formed on the second substrate; a black matrix pattern formed along a boundary of a plurality of pixel regions defined on the first substrate substantially in a matrix form; a storage capacitor electrode formed on the second substrate, and disposed inside the pixel region and under the pixel electrode; wherein one of the pixel electrode and the common electrode comprises a first linear aperture and a second linear aperture inside each pixel region and the first and the second linear apertures are extended in directions different from the first and the second directions, and are arranged substantially in a shape of chevron, wherein shapes collectively defined by the first linear aperture and the second linear aperture in adjacent pixel regions in a pixel row direction are different from each other, and wherein at least one of the first and the second linear apertures is arranged in a parallel direction with an extending direction of the storage capacitor electrode. - View Dependent Claims (13, 14, 15, 16)
-
-
17. A liquid crystal display comprising:
-
a first substrate comprising a common electrode; a second substrate opposite the first substrate; a pixel electrode formed on the second substrate; a black matrix pattern formed along a boundary of a plurality of pixel regions defined on the first substrate substantially in a matrix form; a storage capacitor electrode formed on the second substrate, and disposed inside the pixel region and under the pixel electrode; a first domain divider and a second domain divider formed in each pixel region on at least one of the first substrate and the second substrate; and a liquid crystal layer comprising liquid crystal molecules having negative dielectric anisotropy and aligned substantially in a vertical direction to the first substrate when no electric field is applied to the liquid crystal layer, the liquid crystal layer being interposed between the pixel electrode and the common electrode, wherein the first domain divider and the second domain divider are linear, respectively, are arranged substantially in a shape of chevron, and are slantingly extended with respect to one of boundaries of the pixel electrode, wherein shapes collectively defined by the first domain divider and the second domain divider in adjacent pixel regions in a pixel row direction are different from each other, wherein the liquid crystal layer is divided into four different domain areas by the first domain divider and the second domain divider inside the pixel region when electric field is applied to the liquid crystal layer, wherein the first domain divider is located at the upper area of the pixel electrode and the second domain divider is located at the lower area of the pixel electrode, and wherein no other linear domain divider crosses over the first domain divider or the second domain divider, and no other linear domain divider is arranged in a shape of Y with the first domain divider or the second divider. - View Dependent Claims (18)
-
-
19. A liquid crystal display comprising:
-
a first substrate comprising a common electrode; a second substrate opposite the first substrate; a pixel electrode formed on the second substrate; a black matrix pattern formed along a boundary of a plurality of pixel regions defined on the first substrate substantially in a matrix form; a storage capacitor electrode formed on the second substrate, and disposed inside the pixel region and under the pixel electrode; and a liquid crystal layer comprising liquid crystal molecules having negative dielectric anisotropy and aligned substantially in a vertical direction to the first substrate when no electric field is applied to the liquid crystal layer, the liquid crystal layer being interposed between the pixel electrode and the common electrode, wherein the liquid crystal layer is divided into four different domain areas inside each pixel region when electric field is applied to the liquid crystal layer, wherein the storage capacitor electrode is arranged inside the pixel region along boundaries between a plurality of domain areas, wherein the boundaries between a plurality of domain areas are arranged substantially in a shape of chevron, and wherein shapes collectively defined by the boundaries between the domain areas in adjacent pixel regions in a pixel row direction are different from each other. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A liquid crystal display comprising:
-
a liquid crystal layer comprising liquid crystal molecules having negative dielectric anisotropy and aligned substantially in a vertical direction to the first substrate when no electric field is applied to the liquid crystal layer, the liquid crystal layer being divided into four different domain areas inside in each of a plurality of pixel regions defined therein and arranged substantially in a matrix form when electric field is applied to the liquid crystal layer; and a light shielding part arranged inside each pixel region along at least one boundary between a plurality of domain areas; wherein the at least one boundary between a plurality of domain areas is arranged substantially in a shape of chevron, and wherein shapes collectively defined by the at least one boundaries between the domain areas in adjacent pixel regions in a pixel row direction are different from each other. - View Dependent Claims (29)
-
Specification