Semi-transmissive liquid crystal display panel

View Patent ↗

Loading inventors, assignments & file history…

Monitor This Case

Get email alerts when status or documents change.

Order Certified Copies

Most orders are placed with the USPTO same day — all within 24 business hours.

Order via The Patent Place →

Pre-filled with this patent's details

Quick Facts

Patent No.: US 7,542,115
App. No.: 11/529,264
Granted: Jun 2, 2009
Kind: B2

External Links

USPTO Patent Center↗ Full Patent PDF↗

Abstract

An MVA semi-transmissive liquid crystal display panel is provided with: a first substrate divided into sections by signal lines and scan lines arranged so as to form a matrix, each section having a transmissive portion and a reflective portion, each section having a pixel electrode located in the transmissive portion or in the transmissive and reflective portions, each section having a reflecting layer located in the reflective portion; a second substrate having a common electrode formed on the surface thereof; a vertical alignment film laid on top of the first and second substrates; and a liquid crystal layer with negative dielectric anisotropy disposed between the first and second substrates. Here, the pixel electrode overlaps the scan lines in the transmissive portion, as seen in a plan view, and has jutting portions near where the signal lines and the scan lines intersect.

Claims (50)

1. A semi-transmissive liquid crystal display panel comprising:

a first substrate divided into sections by signal lines and scan lines arranged so as to form a matrix, each section having a transmissive portion and a reflective portion, each section having a pixel electrode located in the transmissive portion or in the transmissive and reflective portions, each section having a reflecting layer located in the reflective portion;

a second substrate having a common electrode formed on a surface thereof;

a vertical alignment film laid on top of the first and second substrates; and

a liquid crystal layer with negative dielectric anisotropy disposed between the first and second substrates,

wherein the pixel electrode is formed in the transmissive portion, as seen in a plan view, along the signal line so as not to overlap the signal line and along the scan line so as to overlap the scan line, and

a jutting portion is formed at each end of a part of the pixel electrode overlapping the scan line along the scan line, the jutting portion jutting from said part into the signal line so as to overlap the signal line.

2. The semi-transmissive liquid crystal display panel of claim 1 ,

wherein the jutting portions each overlap the scan line.

3. The semi-transmissive liquid crystal display panel of claim 2 ,

wherein the jutting portions each overlap the scan line in a width of at least of 1.5 μm.

4. The semi-transmissive liquid crystal display panel of claim 1 ,

wherein the jutting portions each overlap the signal line.

5. The semi-transmissive liquid crystal display panel of claim 4 ,

wherein the jutting portions each overlap the signal line in a width of at least of 1.5 μm.

6. The semi-transmissive liquid crystal display panel of claim 1 ,

wherein the pixel electrode overlaps both the scan line and the signal line only in the jutting portions.

7. The semi-transmissive liquid crystal display panel of claim 6 ,

wherein the pixel electrode overlaps the scan line in a width of at least of 1.5 μm.

8. The semi-transmissive liquid crystal display panel of claim 6 ,

wherein the pixel electrode overlaps the signal line in a width of at least of 1.5 μm.

9. The semi-transmissive liquid crystal display panel of claim 1 ,

wherein the pixel electrode and the reflecting layer are formed on an interlayer insulating film formed over an entire display region of the first substrate, and