# US 2025/0098466 A1 · Pixel array, display panel and metal mask

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- Number: US 2025/0098466 A1
- Document ID: US20250098466A1
- Status: Published application
- Kind: A1
- Application number: 18/042,604
- Filed: 2022-08-10
- Published: 2025-03-20
- Earliest claimed: 2022-06-06
- Assignees: EverDisplay Optronics (Shanghai) Limited
- Applicants: Everdisplay Optronics (Shanghai) Co.,Ltd.
- Inventors: Hsin Chih LIN
- Web page: https://patentgrep.com/patent/US20250098466A1

## CPC

- H10K 59/352: {the areas of the RGB subpixels being different}
- C23C 14/04: Coating on selected surface areas, e.g. using masks
- C23C 14/24: Vacuum evaporation
- H10K 59/35: comprising red-green-blue [RGB] subpixels
- H10K 59/351: {comprising more than three subpixels, e.g. red-green-blue-white [RGBW]}
- H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels}
- H10K 71/16: using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
- H10K 71/166: {using selective deposition, e.g. using a mask}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)

## Abstract

The present disclosure relates to the field of display technology and provides a pixel array, a display panel and a metal mask. The pixel array includes a plurality of pixel units, and each pixel unit is composed of two red sub-pixels, two blue sub-pixels and a green sub-pixel. In each pixel unit, connection lines of centers of the red sub-pixels and the blue sub-pixels in a same row and a same column form a parallelogram, the two red sub-pixels and the two blue sub-pixels are located at diagonal positions of the parallelogram respectively, and a center of the green sub-pixel is located at an intersection position of diagonal lines of the parallelogram. Along the row direction, two adjacent parallelograms are in a translational relationship and share a column side. Along the column direction, two adjacent parallelograms are in a mirror-image relationship and share a row side.

## Claims

### Claim 1

A pixel array, comprising red sub-pixels, green sub-pixels and blue sub-pixels arranged in multiple rows and multiple columns, wherein:
along a row direction, the red sub-pixels and the blue sub-pixels are alternately arranged to form first type of pixel rows, the green sub-pixels are arranged to form second type of pixel rows, and the first type of pixel rows and the second type of pixel rows are alternately arranged along a column direction;
along the column direction, the red sub-pixels and the blue sub-pixels are alternately arranged to form first type of pixel columns, the green sub-pixels are arranged to form second type of pixel columns, and the first type of pixel columns and the second type of pixel columns are alternately arranged along the row direction;
the pixel array comprises a plurality of pixel units, each of the pixel units is composed of two red sub-pixels and two blue sub-pixels distributed in two adjacent first type of pixel rows and two adjacent first type of pixel columns, and a green sub-pixel located between the two adjacent first type of pixel rows and the two adjacent first type of pixel columns;
in each of the pixel units, connection lines of centers of the red sub-pixels and the blue sub-pixels in a same row and a same column form a parallelogram, the two red sub-pixels and the two blue sub-pixels are respectively located at diagonal positions of the parallelogram, and a center of the green sub-pixel is located at an intersection position of diagonal lines of the parallelogram;
along the row direction, two adjacent parallelograms are in a translational relationship and share a column side; and
along the column direction, two adjacent parallelograms are in a mirror-image relationship and share a row side.

### Claim 2 (depends on 1)

The pixel array according to claim 1, wherein, the green sub-pixel has a long side and a short side; and
in each of the pixel units, the short side of the green sub-pixel faces an acute angle of the parallelogram, and the long side of the green sub-pixel faces an obtuse angle of the parallelogram.

### Claim 3 (depends on 2)

The pixel array according to claim 2, wherein, in each of the pixel units, the red sub-pixel located at a position of the obtuse angle of the parallelogram is opposite to the long side of the green sub-pixel, and the red sub-pixel located at a position of the acute angle of the parallelogram is opposite to the short side of the green sub-pixel.

### Claim 4 (depends on 3)

The pixel array according to claim 3, wherein, a size of the blue sub-pixel is larger than a size of the red sub-pixel; and
in each of the pixel units, a distance RG1 between the red sub-pixel and the long side of the green sub-pixel, a distance RG2 between the red sub-pixel and the short side of the green sub-pixel, a distance BG1 between the blue sub-pixel and the short side of the green sub-pixel, and a distance BG2 between the blue sub-pixel and the long side of the green sub-pixel satisfy: RG1≈RG2>BG1≈BG2.

### Claim 5 (depends on 4)

The pixel array according to claim 4, wherein, the distance RG1 and the distance RG2 further satisfy: 20 μm≤RG1≈RG2≤30 μm; and
the distance BG1 and the distance BG2 further satisfy: 18 μm≤BG1≈BG2≤28 μm.

### Claim 6 (depends on 2)

The pixel array according to claim 2, wherein, a ratio GL/GW of the long side to the short side of the green sub-pixel satisfies: 1.25≤GL/GW≤1.85.

### Claim 7 (depends on 1)

The pixel array according to claim 1, wherein, an acute angle a of the parallelogram satisfies: 80°≤a<90°; and
an obtuse angle oa of the parallelogram satisfies: 90°<oa≤100°.

### Claim 8 (depends on 1)

The pixel array according to claim 1, wherein, a width of the parallelogram along the row direction is equal to a height of the parallelogram along the column direction.

### Claim 9 (depends on 1)

The pixel array according to claim 1, wherein, an aperture ratio RO of the red sub-pixel, an aperture ratio GO of the green sub-pixel and an aperture ratio BO of the blue sub-pixel satisfy: RO:GO:BO≈1:1.5:2.

### Claim 10

A display panel, wherein, the display panel comprises a pixel array,
wherein the pixel array comprises red sub-pixels, green sub-pixels and blue sub-pixels arranged in multiple rows and multiple columns, wherein:
along a row direction, the red sub-pixels and the blue sub-pixels are alternately arranged to form first type of pixel rows, the green sub-pixels are arranged to form second type of pixel rows, and the first type of pixel rows and the second type of pixel rows are alternately arranged along a column direction;
along the column direction, the red sub-pixels and the blue sub-pixels are alternately arranged to form first type of pixel columns, the green sub-pixels are arranged to form second type of pixel columns, and the first type of pixel columns and the second type of pixel columns are alternately arranged along the row direction;
the pixel array comprises a plurality of pixel units, each of the pixel units is composed of two red sub-pixels and two blue sub-pixels distributed in two adjacent first type of pixel rows and two adjacent first type of pixel columns, and a green sub-pixel located between the two adjacent first type of pixel rows and the two adjacent first type of pixel columns;
in each of the pixel units, connection lines of centers of the red sub-pixels and the blue sub-pixels in a same row and a same column form a parallelogram, the two red sub-pixels and the two blue sub-pixels are respectively located at diagonal positions of the parallelogram, and a center of the green sub-pixel is located at an intersection position of diagonal lines of the parallelogram;
along the row direction, two adjacent parallelograms are in a translational relationship and share a column side; and
along the column direction, two adjacent parallelograms are in a mirror-image relationship and share a row side.

### Claim 11

A metal mask, wherein, the metal mask is used for making a pixel array,
wherein, the pixel array comprises red sub-pixels, green sub-pixels and blue sub-pixels arranged in multiple rows and multiple columns, wherein:
along a row direction, the red sub-pixels and the blue sub-pixels are alternately arranged to form first type of pixel rows, the green sub-pixels are arranged to form second type of pixel rows, and the first type of pixel rows and the second type of pixel rows are alternately arranged along a column direction;
along the column direction, the red sub-pixels and the blue sub-pixels are alternately arranged to form first type of pixel columns, the green sub-pixels are arranged to form second type of pixel columns, and the first type of pixel columns and the second type of pixel columns are alternately arranged along the row direction;
the pixel array comprises a plurality of pixel units, each of the pixel units is composed of two red sub-pixels and two blue sub-pixels distributed in two adjacent first type of pixel rows and two adjacent first type of pixel columns, and a green sub-pixel located between the two adjacent first type of pixel rows and the two adjacent first type of pixel columns;
in each of the pixel units, connection lines of centers of the red sub-pixels and the blue sub-pixels in a same row and a same column form a parallelogram, the two red sub-pixels and the two blue sub-pixels are respectively located at diagonal positions of the parallelogram, and a center of the green sub-pixel is located at an intersection position of diagonal lines of the parallelogram;
along the row direction, two adjacent parallelograms are in a translational relationship and share a column side; and
along the column direction, two adjacent parallelograms are in a mirror-image relationship and share a row side,
wherein, the metal mask comprises a red light evaporation opening corresponding to the red sub-pixel, a green light evaporation opening corresponding to the green sub-pixel, and a blue light evaporation opening corresponding to the blue sub-pixel.

### Claim 12 (depends on 11)

The metal mask according to claim 11, wherein, in response to that the metal mask is aligned with the pixel array, a spacing Rr between the aligned red sub-pixel and red light evaporation opening, a spacing Gg between the aligned green sub-pixel and green light evaporation opening, and a spacing Bb between the aligned blue sub-pixel and blue light evaporation opening satisfy: Rr>Gg≈Bb.

### Claim 13 (depends on 12)

The metal mask according to claim 12, wherein, the spacing Rr further satisfies: 10.5 μm≤Rr≤15.5 μm;
the spacing Gg further satisfies: 8.5 μm≤Gg≤13.5 μm;
the spacing Bb further satisfies: 8.5 μm≤Bb≤13.5 μm.

### Claim 14 (depends on 13)

The metal mask according to claim 13, wherein, in an alignment structure corresponding to each of the pixel units:
a spacing rG between the red light evaporation opening and the green sub-pixel satisfies: 8.5 μm≤rG≤13.5 μm;
a spacing bG between the blue light evaporation opening and the green sub-pixel satisfies: 8.5 μm≤bG≤13.5 μm;
a spacing gB between the green light evaporation opening and the blue sub-pixel satisfies: 8.5 μm≤gB≤13.5 μm;
a spacing gR between the green light evaporation opening and the red sub-pixel satisfies: 10.5 μm≤gR≤15.5 μm.

### Claim 15 (depends on 10)

The display panel according to claim 10, wherein, the green sub-pixel has a long side and a short side; and
in each of the pixel units, the short side of the green sub-pixel faces an acute angle of the parallelogram, and the long side of the green sub-pixel faces an obtuse angle of the parallelogram.

### Claim 16 (depends on 15)

The display panel according to claim 15, wherein, in each of the pixel units, the red sub-pixel located at a position of the obtuse angle of the parallelogram is opposite to the long side of the green sub-pixel, and the red sub-pixel located at a position of the acute angle of the parallelogram is opposite to the short side of the green sub-pixel.

### Claim 17 (depends on 16)

The display panel according to claim 16, wherein, a size of the blue sub-pixel is larger than a size of the red sub-pixel; and
in each of the pixel units, a distance RG1 between the red sub-pixel and the long side of the green sub-pixel, a distance RG2 between the red sub-pixel and the short side of the green sub-pixel, a distance BG1 between the blue sub-pixel and the short side of the green sub-pixel, and a distance BG2 between the blue sub-pixel and the long side of the green sub-pixel satisfy: RG1≈RG2>BG1≈BG2.

### Claim 18 (depends on 17)

The display panel according to claim 17, wherein, the distance RG1 and the distance RG2 further satisfy: 20 μm≤RG1≈RG2≤30 μm; and
the distance BG1 and the distance BG2 further satisfy: 18 μm≤BG1≈BG2≤28 μm.

### Claim 19 (depends on 15)

The display panel according to claim 15, wherein, a ratio GL/GW of the long side to the short side of the green sub-pixel satisfies: 1.25≤GL/GW≤1.85.

### Claim 20 (depends on 10)

The display panel according to claim 10, wherein, an acute angle a of the parallelogram satisfies: 80°≤a<90°; and
an obtuse angle od of the parallelogram satisfies: 90°<oa≤100°.