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US 10,705,397 B2Granted
Liquid crystal display device, manufacturing method of the same and electronic equipment
AssigneeJapan Display Inc.
InventorsDaisuke Ito, Hideyuki Omori
Life of this patent
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AssigneeJapan Display Inc.
InventorsDaisuke Ito, Hideyuki Omori
Estimating the term…
A liquid crystal display device includes: a plurality of scan lines and signal lines on one of a pair of substrates arranged to be opposed to each other with a liquid crystal layer sandwiched therebetween, the scan lines and signal lines extending in different directions; and an orientation film, pixel electrode, insulating layer and common electrode, the orientation film being rubbed in a rubbing direction having a given inclination with respect to a pixel arrangement direction. The pixel electrode is partitioned by the scan lines and signal lines and has subpixels made up of first and second regions. The first region has a plurality of slit-shaped openings having a given inclination in a first direction with respect to the rubbing direction. The second region has a plurality of slit-shaped openings having a given inclination in a second direction with respect to the rubbing direction.
A display device comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Active matrix addressed cells: wiring, e.g. gate line, drain line
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers: structures for producing distorted electric fields, e.g.…
By treatment of the surface, e.g. embossing, rubbing or light irradiation: by rubbing
Characterised by their geometrical arrangement: for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
About 6 years 2 months of term left · ends 13 Dec 2032 (estimated)
The present technology relates to a liquid crystal display device, manufacturing method of the same and electronic equipment having the same.
An FFS (Fringe Field Switching) LCD (Liquid Crystal Display) panel is known as a horizontal field LCD panel. An FFS LCD panel has found application in portable electronic equipment such as mobile phones thanks to widespread use of such electronic equipment. Portable electronic equipment is often used outdoors, and a user of such equipment has opportunities to view a display screen of the portable electronic equipment through polarized sunglasses. At this time, if the FFS LCD panel has a linear polarization characteristic, and if a transmission axis of the polarized sunglasses and that of the FFS LCD panel are 0 and 180 degrees or 90 and 270 degrees, the user (viewer) may find it difficult to view the display screen.
As a measure intended for polarized sunglasses, a phase difference plate may be provided to change linear polarization into circular polarization. However, this leads to a larger module thickness and higher cost.
FIG. 1 is a diagram illustrating a front view of a pixel of a liquid crystal display panel according to a first embodiment;
FIG. 2 is a cross-sectional view along line A-A in FIG. 1;
FIG. 3 is a diagram illustrating an interleaved structure of regions making up subpixels of the liquid crystal display panel according to the first embodiment;
A description will be given below of preferred embodiments of the present technology with reference to the accompanying drawings.
A description will be given first of a liquid crystal display panel according to a first embodiment with reference to FIGS. 1 to 3. FIG. 1 is a diagram illustrating a front view of a pixel of the liquid crystal display panel according to the first embodiment. FIG. 2 is a cross-sectional view along line A-A in FIG. 1. FIG. 3 is a diagram illustrating an interleaved structure of regions making up subpixels of the liquid crystal display panel according to the first embodiment.
A liquid crystal display panel (liquid crystal display device) 1 is a horizontal field liquid crystal display panel, and more specifically, an FFS liquid crystal display panel. The same panel 1 includes a color filter substrate 11 and array substrate 20 as a pair of substrates arranged to be opposed to each other. Each of the color filter substrate 11 and array substrate 20 is made of a transparent member such as glass or plastic as a base material. These substrates 11 and 20 sandwich a liquid crystal layer 17. The gap between the same substrates 11 and 20 is maintained constant in thickness by a spacer 18.