US-20260130085-A1 - DISPLAY WITH SUBPIXELS ARRANGED IN DIVIDED TETRAGON

US20260130085A1US 20260130085 A1US20260130085 A1US 20260130085A1US-20260130085-A1

Abstract

The present disclosure provides a pixel structure, a displaying substrate, a displaying device and a displaying method, wherein the pixel structure includes first sub-pixels, second sub-pixels and third sub-pixels that are located within a first virtual tetragon; the first sub-pixels are located individually adjacent to midpoints of four side edges of the first virtual tetragon; the second sub-pixels are located individually at four interior angles of the first virtual tetragon; and two center lines of the first virtual tetragon delimit the first virtual tetragon into four second virtual tetragons, and the third sub-pixels are located individually at first interior angles within the four second virtual tetragons.

Inventors

Pengfei Zuo
Huameng Liu
Shanshan BAI

Assignees

BOE TECHNOLOGY GROUP CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20260105
Priority Date: 20210209

Claims (19)

1 . A pixel structure, wherein the pixel structure comprises a pixel unit, the pixel unit comprises a second sub-pixel and a third sub-pixel that are arranged along a first diagonal direction, and two first sub-pixels arranged along a second diagonal direction, wherein the first diagonal direction is a direction in which a line connecting two diagonals of the pixel unit is located, and the second diagonal direction is a direction in which a line connecting the other two diagonals of the pixel unit is located; along the first diagonal direction, the second sub-pixel and the third sub-pixel are both symmetric figures; facing side edges of the second sub-pixel and the third sub-pixel are rounded-corner side edges whose shapes are complementary; wherein a pixel defining layer surrounds a periphery of a light-emission region of the first sub-pixels, and an isolating groove or isolating rod is provided on the pixel defining layer.
2 . The pixel structure according to claim 1 , wherein a shape of the first sub-pixel is a rectangle, longer side edges of the first sub-pixel are parallel to a first direction or a second direction, and two neighboring pixel units share one first sub-pixel, wherein the first direction and the second direction are parallel to two adjacent edges of the pixel unit, respectively.
3 . The pixel structure according to claim 1 , wherein the pixel structure comprises first sub-pixels, second sub-pixels and third sub-pixels that are located within a first virtual tetragon; the first sub-pixels are located individually adjacent to midpoints of four side edges of the first virtual tetragon; the second sub-pixels are located individually at four interior angles of the first virtual tetragon; two center lines of the first virtual tetragon delimit the first virtual tetragon into four second virtual tetragons, and the third sub-pixels are located individually at first interior angles within the four second virtual tetragons, wherein the first interior angles refer to interior angles within the second virtual tetragons that are adjacent to a center point of the first virtual tetragon, and the center lines refer to straight lines connecting midpoints of opposite side edges of the first virtual tetragon; and shapes of the first virtual tetragon and the second virtual tetragons are a square.
4 . The pixel structure according to claim 3 , wherein the pixel structure is axially symmetric with respect to anyone of the center lines as an axis.
5 . The pixel structure according to claim 3 , wherein two neighboring pixel units are axially symmetric with respect to anyone of the center lines.
6 . The pixel structure according to claim 5 , wherein a plurality of the pixel units are arranged in an array, sub-pixels of a same type are arranged back to back, spacings between neighboring sub-pixels of the same type are less than spacings between neighboring sub-pixels of different types.
7 . The pixel structure according to claim 3 , wherein a shape of the second sub-pixels is a concave polygon, and a shape of the third sub-pixels is a convex polygon.
8 . The pixel structure according to claim 7 , wherein within the second virtual tetragons, the second sub-pixels have first facing side edges that face and are parallel to shorter side edges of the first sub-pixels, and a length of the first facing side edges is equal to a length of the shorter side edges of the first sub-pixels.
9 . The pixel structure according to claim 7 , wherein within the second virtual tetragons, a spacing between the first sub-pixels and the second sub-pixels is a first spacing, the third sub-pixels have second facing side edges that face and are parallel to longer side edges of the first sub-pixels, and a length of each of the second facing side edges is equal to half a sum of a length of one longer side edge of the first sub-pixels and the first spacing.
10 . The pixel structure according to claim 3 , wherein within the second virtual tetragons, all of spacings between the first sub-pixels and the second sub-pixels, spacings between the first sub-pixels and the third sub-pixels and spacings between the second sub-pixels and the third sub-pixels are a first spacing, and the first spacing is greater than or equal to 14 micrometers, and is less than or equal to 24 micrometers.
11 . The pixel structure according to claim 1 , wherein the rounded-corner side edge of the second sub-pixel comprises at least two sections of circular arcs and at least one short straight line, and the rounded-corner side edge of the third sub-pixel comprises at least two sections of circular arcs and at least one short straight line.
12 . The pixel structure according to claim 1 , wherein four corners of the first sub-pixel are rounded corners.
13 . The pixel structure according to claim 1 , wherein all of spacing between two neighboring instances of the first sub-pixels, spacing between two neighboring instances of the second sub-pixels and spacing between two neighboring instances of the third sub-pixels are a second spacing, and the second spacing is greater than or equal to 4 micrometers, and is less than or equal to 10 micrometers.
14 . The pixel structure according to claim 1 , wherein an area of the first sub-pixels is less than or equal to an area of the second sub-pixels, and an area of the second sub-pixels is less than or equal to an area of the third sub-pixels.
15 . The pixel structure according to claim 14 , wherein the first sub-pixels emit red light, the second sub-pixels emit green light, and the third sub-pixels emit blue light.
16 . The pixel structure according to claim 1 , wherein the isolating groove is formed by dry etching or solution etching, and the isolating rod is formed by exposure and development.
17 . The pixel structure according to claim 14 , wherein a ratio between the area of the first sub-pixels, the area of the second sub-pixels and the area of the third sub-pixels is 1:2.8:3.4.
18 . A displaying substrate, wherein the displaying substrate comprises the pixel structure according to claim 1 .
19 . A displaying device, wherein the displaying device comprises the displaying substrate according to claim 18 .

Description

The application is a continuation application of U.S. Application No. 18/789,620, filed on July 30, 2024, which is a continuation application of U.S. Application No. 17/482,976, filed on September 23, 2021, and benefit of the filing date of Chinese Patent Application No. 202110180456.0, filed on February 09, 2021, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD The present disclosure relates to the technical field of displaying, and particularly relates to a pixel structure, a displaying substrate, a displaying device and a displaying method. BACKGROUND OLED (Organic Light Emitting Diode) display devices, as compared with traditional liquid-crystal displays, have the advantages such as a low energy consumption, a low production cost, self-illumination, a wide visual angle and a high response speed, are one of the study hot pots of display devices currently, and are applied increasingly extensively in the fields of mobile phones and tablet personal computers. Currently, in the fabrication processes of OLED display devices, usually a high-precision metal mask (Fine Metal Mask, FMM) is employed, and, for the vapor deposition of an organic material by using a vacuum evaporation process, the openings in the FMM are used to control the area and shape of the organic material to form organic electroluminescent structures. SUMMARY The present disclosure provides a pixel structure, a displaying substrate, and a displaying device. The present disclosure discloses a pixel structure, the pixel structure comprises a pixel unit, the pixel unit comprises a second sub-pixel and a third sub-pixel that are arranged along a first diagonal direction, and two first sub-pixels arranged along a second diagonal direction, wherein the first diagonal direction is a direction in which a line connecting two diagonals of the pixel unit is located, and the second diagonal direction is a direction in which a line connecting the other two diagonals of the pixel unit is located; along the first diagonal direction, the second sub-pixel and the third sub-pixel are both symmetric figures; and facing side edges of the second sub-pixel and the third sub-pixel are rounded-corner side edges whose shapes are complementary; wherein a pixel defining layer surrounds a periphery of a light-emission region of the first sub-pixels, and an isolating groove or isolating rod is provided on the pixel defining layer. In an optional implementation, a shape of the first sub-pixel is a rectangle, longer side edges of the first sub-pixel are parallel to a first direction or a second direction, and two neighboring pixel units share one first sub-pixel, wherein the first direction and the second direction are parallel to two adjacent edges of the pixel unit, respectively. In an optional implementation, the pixel structure comprises first sub-pixels, second sub-pixels and third sub-pixels that are located within a first virtual tetragon; the first sub-pixels are located individually adjacent to midpoints of four side edges of the first virtual tetragon; the second sub-pixels are located individually at four interior angles of the first virtual tetragon; and two center lines of the first virtual tetragon delimit the first virtual tetragon into four second virtual tetragons, and the third sub-pixels are located individually at first interior angles within the four second virtual tetragons, wherein the first interior angles refer to interior angles within the second virtual tetragons that are adjacent to a center point of the first virtual tetragon, and the center lines refer to straight lines connecting midpoints of opposite side edges of the first virtual tetragon; and shapes of the first virtual tetragon and the second virtual tetragons are a square. In an optional implementation, the pixel structure is axially symmetric with respect to anyone of the center lines as an axis. In an optional implementation, two neighboring pixel units are axially symmetric with respect to anyone of the center lines. In an optional implementation, a plurality of the pixel units are arranged in an array, sub-pixels of a same type are arranged back to back, spacings between neighboring sub-pixels of the same type are less than spacings between neighboring sub-pixels of different types. In an optional implementation, a shape of the second sub-pixels is a concave polygon, and a shape of the third sub-pixels is a convex polygon. In an optional implementation, within the second virtual tetragons, the second sub-pixels have first facing side edges that face and are parallel to shorter side edges of the first sub-pixels, and a length of the first facing side edges is equal to a length of the shorter side edges of the first sub-pixels. In an optional implementation, within the second virtual tetragons, a spacing between the first sub-pixels and the second sub-pixels is a first spacing, the third sub-pixels have second facing side edges that face and a