Patent Issued for LCD Panel With Small Pixels And Sub-Pixels Having Ladder Pattern (USPTO 10,303,011)

Engineering Business Daily |

2019 JUN 12 (NewsRx) -- By a News Reporter-Staff News Editor at Engineering Business Daily -- From Alexandria, Virginia, NewsRx journalists report that a patent by the inventors Li, Yuet Wing (Tainan, Taiwan); Chen, Wen-Hsu (Tainan, Taiwan), filed on , was published online on .

The patent’s assignee for patent number 10,303,011 is Himax Display Inc. (Tainan, Taiwan).

News editors obtained the following quote from the background information supplied by the inventors: “The present invention relates to a liquid crystal display (LCD) panel, and more particularly, to an LCD panel with small pixels and sub-pixels having a ladder pattern.

“In general, the stripe pixels arrangement or delta pixel arrangement in a conventional liquid crystal display (LCD) panel will induce a strong fringing field and high spatial density grating. The high spatial density grating will induce high diffraction loss in 0 order. The strong fringing field (i.e. unwanted electric field) will drive the liquid crystal molecule align in an improper way. It induces high diffraction loss in 0 order and make the color to white ratio (CWR) become very low (e.q. lower than 20%).”

As a supplement to the background information on this patent, NewsRx correspondents also obtained the inventors’ summary information for this patent: “It is therefore one of the objectives of the present invention to provide a liquid crystal display (LCD) panel with small pixels and sub-pixels having a ladder pattern, so as to solve the above problem.

“In accordance with an embodiment of the present invention, an LCD panel with small pixels is disclosed. The LCD panel comprises: an electrode layer. The electrode layer comprises: a plurality of pixels, each pixel comprising a plurality of types of sub-pixels, each type of sub-pixel having a ladder pattern with a plurality of sectors, wherein each sector comprises a plurality of units and each sector is shifted a unit width with each other.

“In accordance with an embodiment of the present invention, an LCD panel with small pixels is disclosed. The LCD panel comprises: an electrode layer, and a color filter. The electrode layer comprises: a plurality of pixels, each pixel comprising a plurality of types of sub-pixels, each type of sub-pixel having a ladder pattern with a plurality of sectors, wherein each sector comprises a plurality of units and each sector is shifted a unit width with each other. The color filter comprises: a plurality of ladder patterned color layers, disposed on the types of sub-pixels, respectively.

“Briefly summarized, the LCD panel disclosed by the present invention can solve the problems of high diffraction loss and low CWR in the prior art.

“These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings.”

The claims supplied by the inventors are:

“What is claimed is:

“1. A liquid crystal display (LCD) panel with small pixels, comprising: an electrode layer, comprising: a plurality of pixels, each pixel comprising a plurality of types of sub-pixels, each type of sub-pixel having single color and having a ladder pattern with a plurality of sectors, wherein each sector comprises a plurality of units and each sector is shifted a unit width with each other.

“2. The LCD panel of claim 1, wherein the types of sub-pixels comprises red sub-pixels, green sub-pixels, and blue sub-pixels.

“3. The LCD panel of claim 2, wherein the types of sub-pixels further comprises yellow sub-pixels, magenta sub-pixels, or cyan sub-pixels.

“4. The LCD panel of claim 2, wherein the each pixel is smaller than 50 um.

“5. An LCD panel with small pixels, comprising: an electrode layer, comprising: a plurality of pixels, each pixel comprising a plurality of types of sub-pixels, each type of sub-pixel having single color and having a ladder pattern with a plurality of sectors, wherein each sector comprises a plurality of units and each sector is shifted a unit width with each other; and a color filter, comprising: a plurality of ladder patterned color layers, disposed on the types of sub-pixels, respectively.

“6. The LCD panel of claim 5, wherein the types of sub-pixels comprises red sub-pixels, green sub-pixels, and blue sub-pixels.

“7. The LCD panel of claim 6, wherein the ladder patterned color layers comprises red ladder patterned color layers, green ladder patterned color layers, and blue ladder patterned color layers.

“8. The LCD panel of claim 6, wherein the types of sub-pixels further comprises yellow sub-pixels, magenta sub-pixels, or cyan sub-pixels.

“9. The LCD panel of claim 8, wherein the ladder patterned color layers further comprises yellow ladder patterned color layers, magenta ladder patterned color layers, or cyan ladder patterned color layers.

“10. The LCD panel of claim 5, wherein the each pixel is smaller than 50 um.”

For additional information on this patent, see: Li, Yuet Wing; Chen, Wen-Hsu. LCD Panel With Small Pixels And Sub-Pixels Having Ladder Pattern. U.S. Patent Number 10,303,011, filed , and published online on . Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=10,303,011.PN.&OS=PN/10,303,011RS=PN/10,303,011

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