CN-121995666-A - Reflective display panel

CN121995666ACN 121995666 ACN121995666 ACN 121995666ACN-121995666-A

Abstract

The invention provides a reflective display panel which comprises a first substrate, a second substrate, a first pixel structure, a second pixel structure, a color filter layer and a display medium layer. The display medium layer is arranged between the first substrate and the second substrate. The first pixel structure and the second pixel structure on the first substrate are respectively provided with a first reflecting electrode and a second reflecting electrode. The color filter layer is arranged on one side of the reflecting surface of each of the first reflecting electrode and the second reflecting electrode, and comprises a first filter pattern and a second filter pattern with different filter colors. The percentage value of the orthographic projection area of the first filter pattern on the reflecting surface of the first reflecting electrode to the area of the reflecting surface of the first reflecting electrode is larger than the percentage value of the orthographic projection area of the second filter pattern on the reflecting surface of the second reflecting electrode to the area of the reflecting surface of the second reflecting electrode.

Inventors

CHEN YINGRONG
YE ZHENGYAN
Gao Lingzha
ZHANG SHAOQIAN
QIU JINGYA
Luo Qien

Assignees

瀚宇彩晶股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (10)

1. A reflective display panel, comprising: the first substrate and the second substrate are arranged opposite to each other; The display medium layer is arranged between the first substrate and the second substrate; a first pixel structure and a second pixel structure disposed on the first substrate and respectively having a first reflective electrode and a second reflective electrode, and The color filter layer is arranged on one side of each reflecting surface of the first reflecting electrode and the second reflecting electrode, and comprises a first filter pattern overlapped on the first reflecting electrode and a second filter pattern overlapped on the second reflecting electrode, wherein the filter colors of the first filter pattern and the second filter pattern are different from each other, and the percentage value of the orthographic projection area of the first filter pattern on the reflecting surface of the first reflecting electrode to the area of the reflecting surface of the first reflecting electrode is larger than the percentage value of the orthographic projection area of the second filter pattern on the reflecting surface of the second reflecting electrode to the area of the reflecting surface of the second reflecting electrode.
2. The reflective display panel according to claim 1, wherein the first filter pattern and the second filter pattern are respectively provided with a first opening and a second opening, and a front projection area of the first opening on the reflective surface of the first reflective electrode is smaller than a front projection area of the second opening on the reflective surface of the second reflective electrode.
3. The reflective display panel of claim 2, wherein the first filter pattern has a red or blue color and the second filter pattern has a green color.
4. The reflective display panel of claim 2, wherein the first opening and the second opening are not in communication with each other.
5. The reflective display panel of claim 2, wherein the first filter pattern and the second filter pattern are provided with a first opening and a second opening, respectively, and the first opening is in communication with the second opening.
6. The reflective display panel of claim 5 wherein an orthographic projection profile of said first opening on said reflective surface of said first reflective electrode is different from an orthographic projection profile of said second opening on said reflective surface of said second reflective electrode.
7. The reflective display panel of claim 5, further comprising: the third pixel structure is arranged on the first substrate and is provided with a third reflecting electrode, wherein the color filter layer further comprises a third filter pattern overlapped on the third reflecting electrode, the third filter pattern is provided with a third opening, the first opening, the second opening and the third opening are mutually communicated, and the orthographic projection area of the third opening on the reflecting surface of the third reflecting electrode is smaller than the orthographic projection area of the second opening on the reflecting surface of the second reflecting electrode.
8. The reflective display panel of claim 7, wherein an orthographic projection profile of the entirety of the first, second, and third openings on the first substrate comprises a diamond shape.
9. The reflective display panel of claim 1 wherein said display medium layer comprises liquid crystal.
10. The reflective display panel of claim 2, wherein each of the first opening and the second opening is filled with a transparent pattern adapted to allow white light to pass therethrough.

Description

Reflective display panel Technical Field The present invention relates to a display panel, and more particularly, to a reflective display panel. Background Generally, liquid crystal display panels can be classified into three types, namely transmissive, reflective and transflective, and the classification is based on the difference in the arrangement of the illumination source and the pixel array substrate. The reflective liquid crystal display panel mainly uses natural light or ambient light as a light source. The display can be performed without backlight illumination, so that the display has good energy-saving characteristics. Therefore, it is often used in outdoor or light-rich fields such as billboards, electronic tags, sports watches, or electronic readers. To meet the color display requirements, reflective liquid crystal display panels may incorporate color filter layers to achieve desired display colors. In general, a color filter layer may include multiple filter patterns of different filter colors, and the distribution areas of the filter patterns are substantially the same. Since the sensitivity of human eyes to different colors is different, if the above-mentioned multiple filter patterns are arranged in the same distribution area, the color of the display screen is easily distorted or color cast is present. Disclosure of Invention The invention is directed to a reflective display panel with improved visual quality of color display. According to an embodiment of the invention, a reflective display panel includes a first substrate, a second substrate, a first pixel structure, a second pixel structure, a color filter layer, and a display medium layer. The first substrate and the second substrate are arranged opposite to each other, and the display medium layer is arranged between the first substrate and the second substrate. The first pixel structure and the second pixel structure are arranged on the first substrate and are respectively provided with a first reflecting electrode and a second reflecting electrode. The color filter layer is arranged on the second substrate and corresponds to the first reflecting electrode and the second reflecting electrode. The color filter layer comprises a first filter pattern which is projected to be overlapped with the first reflecting electrode and a second filter pattern which is projected to be overlapped with the second reflecting electrode. The first filter pattern and the second filter pattern have different filter colors from each other. The percentage value of the orthographic projection area of the first filter pattern on the reflecting surface of the first reflecting electrode to the area of the reflecting surface of the first reflecting electrode is larger than the percentage value of the orthographic projection area of the second filter pattern on the reflecting surface of the second reflecting electrode to the area of the reflecting surface of the second reflecting electrode. In the reflective display panel according to the embodiment of the invention, the first filter pattern and the second filter pattern are respectively provided with the first opening and the second opening, and the orthographic projection area of the first opening on the reflecting surface of the first reflective electrode is smaller than the orthographic projection area of the second opening on the reflecting surface of the second reflective electrode. In the reflective display panel according to the embodiment of the invention, the filter color of the first filter pattern is red or blue, and the filter color of the second filter pattern is green. In the reflective display panel according to the embodiment of the invention, the first opening and the second opening are not in communication with each other. In the reflective display panel according to the embodiment of the invention, the first filter pattern and the second filter pattern are respectively provided with a first opening and a second opening, and the first opening is communicated with the second opening. In the reflective display panel according to the embodiment of the invention, the front projection profile of the first opening on the reflective surface of the first reflective electrode is different from the front projection profile of the second opening on the reflective surface of the second reflective electrode. In the reflective display panel according to the embodiment of the invention, the reflective display panel further includes a third pixel structure. The third pixel structure is arranged on the first substrate and provided with a third reflecting electrode. The color filter layer further includes a third filter pattern overlapped with the third reflective electrode. The third filter pattern is provided with a third opening. The first opening, the second opening and the third opening are communicated with each other, and the orthographic projection area of the third opening on the reflecting surface of t