Pixel arrangement structure and manufacturing method thereof, mask assembly and display device

Abstract

The present invention provides a pixel arrangement structure and a manufacturing method thereof, a mask assembly and a display device. In the first direction and the second direction, it includes a plurality of array-arranged pixel units and a pixel defining layer, the pixel defining layer has a plurality of openings, the pixel unit includes a first color sub-pixel, a second color sub-pixel and a third color sub-pixel arranged along the first direction, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are respectively arranged in one of the openings, wherein the long side direction of the opening intersects with the first direction, and the angle is 10° to 80°, and the first direction intersects with the second direction. Thus, the above-mentioned pixel arrangement structure can change the direction of the emitted light, thereby greatly reducing the reflection efficiency of light in a certain direction, reducing glare, and improving the display effect.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a pixel arrangement structure and a manufacturing method thereof, and a mask assembly. Background Art

[0002] When the user's eyes look at the display screen of the display device sideways or the display screen is uneven, light will be diffusely reflected when it is incident on the display device, and then reflected into the human eye, causing glare. In particular, the human eye is most sensitive to light diffusely reflected at 30°, and the light path of the diffuse reflection cannot be controlled, which seriously affects the user's viewing experience.

[0003] Therefore, research on display devices needs to be deepened. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one object of the present invention is to provide a pixel arrangement structure, which can change the direction of emitted light, thereby greatly reducing the reflection efficiency of light in a certain direction and reducing glare.

[0005] In one aspect of the present invention, the present invention provides a pixel arrangement structure. According to an embodiment of the present invention, a plurality of array-arranged pixel units and a pixel defining layer are included in the first direction and the second direction, the pixel defining layer has a plurality of openings, the pixel unit includes a first color sub-pixel, a second color sub-pixel and a third color sub-pixel arranged along the first direction, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are respectively arranged in one of the openings, wherein the long side direction of the opening intersects with the first direction, and the angle is 10° to 80°, and the first direction intersects with the second direction. Thus, the above-mentioned pixel arrangement structure can change the direction of the emitted light, thereby greatly reducing the reflection efficiency of light in a certain direction, reducing glare, and improving the display effect.

[0006] According to an embodiment of the present invention, the third color sub-pixel is recessed in a direction away from the first color sub-pixel, and / or the second color sub-pixel is recessed in a direction away from the first color sub-pixel.

[0007] According to an embodiment of the present invention, the shape of the first color sub-pixel is symmetrical about a first straight line, and the first straight line is parallel to the first direction.

[0008] According to an embodiment of the present invention, the shape of the second color sub-pixel is symmetrical with respect to the first straight line, and / or the shape of the third color sub-pixel is symmetrical with respect to the first straight line.

[0009] According to an embodiment of the present invention, the second color sub-pixel includes a first segment and a second segment, and the first segment and the second segment both intersect with the first direction; the third color sub-pixel includes a third segment and a fourth segment, and the third segment and the fourth segment both intersect with the first direction, wherein the pixel unit satisfies at least one of the following conditions: the shape of the first color sub-pixel is at least one of a quadrilateral, a circle, and an ellipse; the shape of the first segment and the shape of the second segment are both at least one of a quadrilateral, a part of an ellipse, a part of a circle, and a part of a crescent; the shape of the third segment and the shape of the fourth segment are both at least one of a quadrilateral, a part of an ellipse, a part of a circle, and a part of a crescent.

[0010] According to an embodiment of the present invention, the pixel unit satisfies at least one of the following conditions: the first color sub-pixel includes a first straight edge, a first arc edge, a second straight edge, a second arc edge, a third straight edge, a third arc edge, a fourth straight edge and a fourth arc edge connected in sequence, and the first straight edge is connected to the fourth arc edge; the second color sub-pixel also includes a second color connecting segment for connecting the first segment and the second segment, and two sides of the second color connecting segment oppositely arranged in the first direction are both curves; the third color sub-pixel also includes a third color connecting segment for connecting the third segment and the fourth segment, and two sides of the third color connecting segment oppositely arranged in the first direction are both curves.

[0011] According to an embodiment of the present invention, it is defined that in the second direction, the side of the first segment close to the second segment is the first boundary line, the side of the second segment close to the first segment is the second boundary line, the side of the third segment close to the fourth segment is the third boundary line, and the side of the fourth segment close to the third segment is the fourth boundary line, wherein, in the second direction, the first boundary line and the second boundary line are spaced apart, or the first boundary line and the second boundary line are located on the same straight line; the third boundary line and the fourth boundary line are spaced apart, or the third boundary line and the fourth boundary line are located on the same straight line.

[0012] According to an embodiment of the present invention, the second color sub-pixel and the third color sub-pixel satisfy at least one of the following conditions:

[0013] (1) the orthographic projection of the first boundary line in the first direction completely overlaps with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction completely overlaps with the orthographic projection of the fourth boundary line in the first direction;

[0014] (2) the orthographic projection of the first boundary line in the first direction partially overlaps with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction completely overlaps with the orthographic projection of the fourth boundary line in the first direction;

[0015] (3) the orthographic projection of the first boundary line in the first direction has no overlapping area with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction completely overlaps with the orthographic projection of the fourth boundary line in the first direction;

[0016] (4) the orthographic projection of the first boundary line in the first direction completely overlaps with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction partially overlaps with the orthographic projection of the fourth boundary line in the first direction;

[0017] (5) the orthographic projection of the first boundary line in the first direction partially overlaps with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction partially overlaps with the orthographic projection of the fourth boundary line in the first direction;

[0018] (6) The orthographic projection of the first boundary line in the first direction has no overlapping area with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction has a partial overlapping area with the orthographic projection of the fourth boundary line in the first direction.

[0019] According to an embodiment of the present invention, the first segment is located on a side of the third segment away from the first color sub-pixel, and the second segment is located on a side of the fourth segment close to the first color sub-pixel.

[0020] According to an embodiment of the present invention, the first segment is located on a side of the third segment away from the first color sub-pixel, the second segment is located on a side of the first color sub-pixel away from the fourth segment, and the first segment is parallel to the second segment.

[0021] According to an embodiment of the present invention, the first column of pixels and the second column of pixels in two adjacent columns are defined as a column pixel group, and in the same column of pixels, the recessed opening of the third color sub-pixel in the first column of pixels is opposite to the recessed opening of the third color sub-pixel in the second column of pixels; in the column pixels of two adjacent columns, the recessed opening of the third color sub-pixel in the second column of pixels in one column pixel group is opposite to the recessed opening of the third color sub-pixel in the first column of pixels in the other column pixel group.

[0022] According to an embodiment of the present invention, the first color sub-pixel is a red sub-pixel, the second color sub-pixel is a green sub-pixel, and the third color sub-pixel is a blue sub-pixel. In the first direction, the green sub-pixel is located between the red sub-pixel and the blue sub-pixel, or the blue sub-pixel is located between the red sub-pixel and the green sub-pixel. When in the first direction, the green sub-pixel is located between the red sub-pixel and the blue sub-pixel, and the pixel brightness center of the pixel unit coincides with the brightness center of the green sub-pixel.

[0023] In another aspect of the present invention, the present invention provides a mask assembly for making the aforementioned pixel arrangement structure. According to an embodiment of the present invention, the precision metal mask assembly includes a first precision metal mask, a second precision metal mask and a third precision metal mask, wherein the first precision metal mask has a plurality of first openings, the first openings are used for evaporation to form a first color sub-pixel; the second precision metal mask has a plurality of second openings, the second openings are used for evaporation to form a second color sub-pixel; the third precision metal mask has a plurality of third openings, the third openings are used for evaporation to form a third color sub-pixel, wherein the length extension direction of at least one of the first opening, the second opening and the third opening intersects with the first direction, and the angle is 30° to 60°. Thus, the pixel arrangement structure formed by evaporation of the above mask assembly can change the direction of the emitted light, thereby greatly reducing the reflection efficiency of light in a certain direction, reducing glare, and improving the display effect.

[0024] According to an embodiment of the present invention, one of the first openings is evaporated to form one of the first color sub-pixels; the size of one of the second openings is half the size of one of the second color sub-pixels, and half of the second color sub-pixel is formed in one evaporation process, and the length extension directions of the second openings in two adjacent columns are different; the size of one of the third openings is half the size of one of the third color sub-pixels, and half of the second color sub-pixel is formed in one evaporation process, and the length extension directions of the third openings in two adjacent columns are different.

[0025] According to an embodiment of the present invention, the mask assembly also satisfies at least one of the following conditions: the second precision metal mask also has a plurality of second sub-openings, the second openings and the second sub-openings correspond one-to-one and are connected, and the second sub-openings are used for evaporation to form second color connecting segments; the third precision metal mask also has a plurality of third sub-openings, the third openings and the third sub-openings correspond one-to-one and are connected, and the third sub-openings are used for evaporation to form third color connecting segments.

[0026] In another aspect of the present invention, the present invention provides a method for making the aforementioned pixel arrangement structure using the aforementioned mask assembly. According to an embodiment of the present invention, the method steps for forming a first color sub-pixel include: using a first precision metal mask to form the first color sub-pixel through a first opening by evaporation, and the method steps for forming a second color sub-pixel include: using a second precision metal mask to form half of the second color sub-pixel through a second opening by evaporation; then performing a first movement and a second movement on the second precision metal mask, the direction of the first movement being parallel to the first direction, and the moving distance being the column spacing of the second openings of two adjacent columns, and the second movement being parallel to the second direction, and the moving distance being the row spacing of the second openings of two adjacent rows; finally, forming the second color sub-pixel by evaporation through the second opening. The other half of the pixel is formed by evaporating the second color sub-pixel including the first segment and the second segment, and the method steps for forming the third color sub-pixel include: using the third precision metal mask to form half of the third color sub-pixel through the third opening; then the third precision metal mask is subjected to the third movement and the fourth movement, the direction of the third movement is parallel to the first direction, the moving distance is the column spacing of the third openings of two adjacent columns, and the fourth movement is parallel to the second direction, the moving distance is the row spacing of the third openings of two adjacent rows; finally, the other half of the third color sub-pixel is formed by evaporating the third opening to obtain the third color sub-pixel including the third segment and the fourth segment. Therefore, the above method can effectively produce the above pixel arrangement structure, and can reduce the number and size of the openings of the precision metal mask, thereby helping to reduce the production cost of the mask and the cost of producing sub-pixels.

[0027] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the display device includes the above-mentioned pixel arrangement structure. As a result, when a user looks at the screen of the display device from the side in a certain direction, glare is not easily generated, which greatly improves the user's viewing experience. It can be understood by those skilled in the art that the display device has all the features and advantages of the above-mentioned pixel arrangement structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 is a schematic diagram of a pixel arrangement structure in one embodiment of the present invention;

[0030] Figure 2 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0031] Figure 3is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0032] Figure 4 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0033] Figure 5 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0034] Figure 6 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0035] Figure 7 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0036] Figure 8 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0037] Fig. 9 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0038] Fig.10 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0039] Fig.11 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0040] Fig.12 is a schematic diagram of a pixel arrangement structure in another embodiment of the present invention;

[0041] Fig.13 is a schematic structural diagram of a first precision metal mask in another embodiment of the present invention;

[0042] Fig.14 is a schematic structural diagram of a second precision metal mask in yet another embodiment of the present invention;

[0043] Fig.15 is a schematic structural diagram of a third precision metal mask in yet another embodiment of the present invention;

[0044] Fig.16 It is a flow chart of moving the second precision metal mask in the method step of forming a second color sub-pixel in another embodiment of the present invention;

[0045] Fig.17 is a flow chart of moving a third precision metal mask in a method step of forming a third color sub-pixel in another embodiment of the present invention;

[0046] Fig.18 is a schematic structural diagram of a second opening and a second sub-opening in yet another embodiment of the present invention;

[0047] Fig.19 It is a schematic structural diagram of a third opening and a third sub-opening in yet another embodiment of the present invention. DETAILED DESCRIPTION

[0048] The scheme of the present invention will be explained below in conjunction with the embodiments. It will be appreciated by those skilled in the art that the following embodiments are only used to illustrate the present invention and should not be considered as limiting the scope of the present invention. Where specific techniques or conditions are not indicated in the embodiments, the techniques or conditions described in the literature in this area or the product specifications are used. The reagents or instruments used are not indicated by the manufacturer and are all conventional products that can be obtained commercially.

[0049] The present invention is described below with reference to specific embodiments. It should be noted that these embodiments are merely illustrative and do not limit the present invention in any way.

[0050] In one aspect of the present invention, the present invention provides a pixel arrangement structure. According to an embodiment of the present invention, referring to Figure 1 and Figure 2 , including a plurality of pixel units 100 and a pixel defining layer 500 arranged in an array in the first direction and the second direction (the blank position between each sub-pixel in the figure is the pixel defining layer 500), the pixel defining layer has a plurality of openings, the pixel unit 100 includes a first color sub-pixel 110, a second color sub-pixel 120 and a third color sub-pixel 130 arranged along the first direction, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are respectively arranged in one of the openings, wherein the long side of the opening intersects with the first direction, and the angle is 10° to 80° (for example, 10°, 20°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°). Thus, the above-mentioned pixel arrangement structure can change the direction of the emitted light, thereby greatly reducing the reflection efficiency of light in a certain direction, reducing glare, and improving the display effect.

[0051] It should be noted that Figure 1 and Figure 2In the structure in, the length direction of the opening is the length extension direction of the first color sub-pixel 110, the length extension direction of the second color sub-pixel 120 or the length extension direction of the third color sub-pixel 130: the length direction of the opening for setting the first color sub-pixel (or, the length extension direction of the first color sub-pixel) is direction x or a direction perpendicular to direction x; the length direction for setting the opening of the second color sub-pixel (or, the length extension direction of the first color sub-pixel) has two directions, namely direction y and direction z; the length direction for setting the opening of the third color sub-pixel (or, the length extension direction of the first color sub-pixel) has two directions, namely direction y and direction z ( Figure 1 and Figure 2 In the example, the length extension direction of the second color sub-pixel is parallel to the length extension direction of the third color sub-pixel).

[0052] According to an embodiment of the present invention, referring to Figure 1 and Figure 2 , the third color sub-pixel 130 is recessed in a direction away from the first color sub-pixel 110, that is, the third color sub-pixel 130 is convex in a direction away from the first color sub-pixel 110. Figure 1 and Figure 2 , the second color sub-pixel 120 is concave in the direction away from the first color sub-pixel 110, that is, the second color sub-pixel 130 is convex in the direction away from the first color sub-pixel 110. Therefore, the length extension direction of the first color sub-pixel 110, the length extension direction of the second color sub-pixel 120 and the length extension direction of the third color sub-pixel 130 all intersect with the first direction, which can effectively change the direction of the emitted light, thereby greatly reducing the reflection efficiency of light in a certain direction, reducing glare, and improving the display effect; it can also be more conducive to arranging more pixel units in a limited space, that is, it is conducive to the arrangement of sub-pixels.

[0053] According to an embodiment of the present invention, the pixel unit includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel arranged along a first direction, but there is no specific requirement for the arrangement order of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel. According to an embodiment of the present invention, the first color sub-pixel 110 is a red sub-pixel, the second color sub-pixel 120 is a green sub-pixel, and the third color sub-pixel 130 is a blue sub-pixel. Further, in some embodiments, referring to Figure 1 In the first direction, the green sub-pixel is located between the red sub-pixel and the blue sub-pixel. In this way, when the sub-pixels are arranged, a portion of the first color sub-pixel can be arranged inside the recessed portion of the second color sub-pixel, and a portion of the second color sub-pixel is located in the recessed portion of the third color sub-pixel. In some embodiments, referring to Figure 2, the blue sub-pixel is located between the red sub-pixel and the green sub-pixel, so when the sub-pixels are arranged, part of the first color sub-pixel can be arranged inside the recessed portion of the third color sub-pixel, and part of the third color sub-pixel is located in the recessed portion of the second color sub-pixel. In this way, the sub-pixels can be arranged better and more reasonably, and the pixel resolution can be improved.

[0054] Reference Figure 1 , in the first direction, the green sub-pixel is located between the red sub-pixel and the blue sub-pixel, and the pixel brightness center of the pixel unit coincides with the brightness center of the green sub-pixel. At this time, the green sub-pixel contributes the most to the brightness, and the pixel brightness center of the pixel unit coincides with the brightness center of the green sub-pixel, which can minimize color separation and optimize the display effect to the greatest extent. Among them, the brightness calculation formula is Y=0.3Re+0.59Ge+0.11Be, and the pixel brightness center of the pixel unit refers to the brightness center of the white light generated by a pixel unit.

[0055] According to an embodiment of the present invention, the shape of the first color sub-pixel 110 is symmetrical about the first straight line AA', and the first straight line is parallel to the first direction. Further, the shape of the second color sub-pixel 120 can also be symmetrical about the first straight line AA'. Furthermore, the shape of the third color sub-pixel 130 can also be symmetrical about the first straight line AA'. Thus, the arrangement of the sub-pixels can be more reasonably arranged, and the resolution of the pixels can be improved. It should be noted that the first straight line AA' is only Figure 1 and Figure 2 For the symmetry axis of a specific row of pixel units, three sub-pixels in the pixel units of other rows all have a first straight line of the symmetry axis, and the first straight lines of the symmetry axes of pixel units in different rows are parallel to each other.

[0056] According to an embodiment of the present invention, referring to Figure 1 and Figure 2 , the second color sub-pixel 120 includes a first section 121 and a second section 122, both of which intersect with the first direction, wherein the length of the first section extends in direction y, and the length of the second section extends in direction z; the third color sub-pixel 130 includes a third section 131 and a fourth section 132, both of which intersect with the first direction, wherein the length of the third section 131 extends in direction y, and the length of the fourth section 132 extends in direction z. Thus, the second color sub-pixel and the third color sub-pixel both include two sections with different angles to the first direction, which can better change the reflection direction of light, thereby greatly reducing the reflection efficiency of light in a certain direction, reducing glare, and improving display effects.

[0057] According to an embodiment of the present invention, referring to Figures 1 to 3, the pixel unit satisfies at least one of the following conditions: the shape of the first color sub-pixel 110 is at least one of a quadrilateral (such as a rectangle, a rhombus, a parallelogram, etc.), a circle, and an ellipse; the shape of the first segment 121 and the shape of the second segment 122 are both a part of a quadrilateral, an ellipse (such as Figure 3 (a) in the figure), a part of a circle, and a part of a crescent (e.g. Figure 3 The shape of the third segment 131 and the shape of the fourth segment 132 are both a quadrilateral, a part of an ellipse (such as Figure 3 (a) in the figure), a part of a circle, and a part of a crescent (e.g. Figure 3 At least one of (b)). Wherein, a part of an ellipse is a part of an ellipse, a part of a circle is a part of a circle, and a part of a crescent is a part of a crescent. In some embodiments, the first segment and the second segment have the same shape. When the first segment and the second segment are both parts of a circle or parts of an ellipse or parts of a crescent, the first segment and the second segment are parts of the same circle, or parts of the same ellipse, or at least a part of the same crescent; similarly, the third segment and the fourth segment have the same shape. When the third segment and the fourth segment are both parts of a circle or parts of an ellipse or parts of a crescent, the third segment and the fourth segment are parts of the same circle, or parts of the same ellipse, or at least a part of the same crescent.

[0058] According to an embodiment of the present invention, referring to Figure 4 In (a) and (b), the pixel unit satisfies at least one of the following conditions: the first color sub-pixel 110 includes a first straight edge 111, a first arc edge 112, a second straight edge 113, a second arc edge 114, a third straight edge 115, a third arc edge 116, a fourth straight edge 117 and a fourth arc edge 118 connected in sequence, and the first straight edge 111 is connected to the fourth arc edge 118; the second color sub-pixel 120 also includes a second color connecting segment 123 for connecting the first segment 121 and the second segment 122, and two sides of the second color connecting segment 123 arranged opposite to each other in the first direction are both curves; the third color sub-pixel 130 also includes a third color connecting segment 133 for connecting the third segment 131 and the fourth segment 132, and two sides of the third color connecting segment 133 arranged opposite to each other in the first direction are both curves. Two adjacent straight edges in the first color sub-pixel are connected by an arc edge of a curve, the connection between the first segment and the second segment in the second color sub-pixel and the connection between the third segment and the fourth segment in the third color sub-pixel are both connected by a curve, so that the sub-pixel does not have an inflection point formed by a straight line in the first direction ( Figure 1 and Figure 2Adjacent sub-pixels in the image are directly connected by straight lines, resulting in an inflection point formed by the straight line), thereby preventing light from concentrating at the inflection point and causing an obvious luminous effect.

[0059] Among them, the two sides of the second color connecting segment 123 that are relatively arranged in the first direction are both curves, and there is no special requirement for the bending direction of the curve. The curve can be bent in the direction away from or close to the first color sub-pixel, and the bending directions of the curves on both sides can be the same or different; similarly, the two sides of the first color connecting segment 133 that are relatively arranged in the first direction are both curves, and there is no special requirement for the bending direction of the curve. The curve can be bent in the direction away from or close to the first color sub-pixel, and the bending directions of the curves on both sides can be the same or different.

[0060] According to an embodiment of the present invention, referring to Figures 5 to 12 , it is defined that in the second direction, the side of the first segment 121 close to the second segment 122 is the first boundary line 1211, the side of the second segment 122 close to the first segment 121 is the second boundary line 1222, the side of the third segment 131 close to the fourth segment 132 is the third boundary line 1311, and the side of the fourth segment 132 close to the third segment 131 is the fourth boundary line 1322. In some embodiments, in the second direction, the first boundary line 1211 and the second boundary line 1222 are arranged at intervals (such as Figure 6 and Figure 7 In other embodiments, the first boundary line 1211 and the second boundary line 1222 are located on the same straight line (such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown), further, there is an overlapping area or a complete overlap between the first boundary line 1211 and the second boundary line 1222; in some embodiments, in the second direction, the third boundary line 1311 and the fourth boundary line 1322 are arranged at intervals (such as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 In other embodiments, the third boundary line 1311 and the fourth boundary line 1322 are located on the same straight line (such as Figure 7 As shown), further, there is an overlapping area or a complete overlap between the third boundary line 1311 and the fourth boundary line 1322.

[0061] According to an embodiment of the present invention, the second color sub-pixel and the third color sub-pixel satisfy at least one of the following conditions:

[0062] (1) The orthographic projection of the first boundary line 1211 in the first direction completely overlaps with the orthographic projection of the second boundary line 1222 in the first direction, and the orthographic projection of the third boundary line 1311 in the first direction completely overlaps with the orthographic projection of the fourth boundary line 1322 in the first direction. Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, at this time, the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are all symmetrical about the first straight line;

[0063] (2) The orthographic projection of the first boundary line 1211 in the first direction partially overlaps with the orthographic projection of the second boundary line 1222 in the first direction, and the orthographic projection of the third boundary line 1311 in the first direction completely overlaps with the orthographic projection of the fourth boundary line 1322 in the first direction. Figure 8 As shown, in Figure 8 , the first color sub-pixel and the third color sub-pixel are symmetrical about the first straight line;

[0064] (3) The orthographic projection of the first boundary line 1211 in the first direction has no overlapping area with the orthographic projection of the second boundary line 1222 in the first direction, and the orthographic projection of the third boundary line 1311 in the first direction completely overlaps with the orthographic projection of the fourth boundary line 1322 in the first direction. Fig. 9 As shown, in Fig. 9 , the first color sub-pixel and the third color sub-pixel are symmetrical about the first straight line;

[0065] (4) The orthographic projection of the first boundary line 1211 in the first direction completely overlaps with the orthographic projection of the second boundary line 1222 in the first direction, and the orthographic projection of the third boundary line 1311 in the first direction partially overlaps with the orthographic projection of the fourth boundary line 1322 in the first direction. Fig.10 As shown, in Fig.10 , the first color sub-pixel and the second color sub-pixel are symmetrical about the first straight line, and the first boundary line 1211 and the second boundary line 1222 can be arranged at intervals or overlapped;

[0066] (5) The orthographic projection of the first boundary line 1211 in the first direction partially overlaps with the orthographic projection of the second boundary line 1222 in the first direction, and the orthographic projection of the third boundary line 1311 in the first direction partially overlaps with the orthographic projection of the fourth boundary line 1322 in the first direction. Fig.11 As shown;

[0067] (6) The orthographic projection of the first boundary line 1211 in the first direction has no overlapping area with the orthographic projection of the second boundary line 1222 in the first direction, and the orthographic projection of the third boundary line 1311 in the first direction has a partial overlapping area with the orthographic projection of the fourth boundary line 1322 in the first direction, such as Fig.12 shown.

[0068] According to an embodiment of the present invention, referring to Fig.12 As shown, the first segment 121 is located on the side of the third segment 131 away from the first color sub-pixel 110, and the second segment 122 is located on the side of the fourth segment 132 close to the first color sub-pixel. In this structure, the third segment and the fourth segment of the third color sub-pixel are staggered, the orthographic projection of the third boundary line 1311 in the first direction and the orthographic projection of the fourth boundary line 1322 in the first direction have a partial overlapping area, and the third boundary line 1311 and the fourth boundary line 1322 can be arranged at intervals, and the staggered arrangement of the third segment and the fourth segment can reserve a setting space for the first segment and the second segment, which is conducive to a more reasonable layout of the sub-pixel arrangement, thereby improving the resolution of the pixel.

[0069] According to an embodiment of the present invention, referring to Fig. 9 , the first section 121 is located on the side of the third section 131 away from the first color sub-pixel 110, the second section 122 is located on the side of the first color sub-pixel 110 away from the fourth section 132, and the first section 121 is parallel to the second section 122. Therefore, the length extension direction of the first color sub-pixel 110, the length extension direction of the second color sub-pixel 120, and the length extension direction of the third color sub-pixel 130 all intersect with the first direction, which can effectively change the direction of the emitted light, thereby greatly reducing the reflection efficiency of light in a certain direction, reducing glare, and improving the display effect; and it can also arrange the sub-pixels more reasonably, thereby improving the resolution of the pixels.

[0070] According to an embodiment of the present invention, referring to Fig. 9 , define the first column of pixels 11 and the second column of pixels 12 of two adjacent columns as a column pixel group 2, the recessed opening of the third color sub-pixel 130 in the first column of pixels 11 in the same column of pixels is opposite to the recessed opening of the third color sub-pixel 130 in the second column of pixels 12; in the column pixels 2 of two adjacent columns, the recessed opening of the third color sub-pixel 130 in the second column of pixels 12 in one column pixel group 2 is opposite to the recessed opening of the third color sub-pixel 130 in the first column of pixels 11 in another column pixel group. Therefore, due to the different directions of the recessed openings of the third color sub-pixels and the above-mentioned setting of the first segment and the second segment in the second color sub-pixels, the sub-pixels can be arranged symmetrically with a misalignment, so that the jagged feeling of the corresponding two lines is weakened, thereby effectively improving the display effect.

[0071] It should be noted that if Fig. 9 As shown, "opposite" means that in the first direction, the direction of the opening of the recess of the third color sub-pixel 130 in the first column of pixels 11 is opposite to the direction of the opening of the recess of the third color sub-pixel 130 in the second column of pixels 12, that is, the openings of the two are set far away from each other, and the bottoms of the recesses are set close to each other; "opposite" means that in the first direction, the direction of the opening of the recess of the third color sub-pixel 130 in the first column of pixels 11 is opposite to the direction of the opening of the recess of the third color sub-pixel 130 in the second column of pixels 12, that is, the openings of the two are set close to each other, and the bottoms of the recesses are set far away from each other.

[0072] According to an embodiment of the present invention, the above pixel arrangement structure can be used in an OLED display panel or an AMOLED display panel.

[0073] In another aspect of the present invention, the present invention provides a method for manufacturing the aforementioned pixel arrangement structure. According to an embodiment of the present invention, the precision metal mask assembly comprises a first precision metal mask 1000 (refer to Fig.13 ), the second precision metal mask 2000 (reference Fig.14 ) and the third precision metal mask 3000 (reference Fig.15 ), wherein the first precision metal mask 1000 has a plurality of first openings 1100, the first openings 1100 are used for evaporation to form the first color sub-pixel 110; the second precision metal mask 2000 has a plurality of second openings 2100, the second openings 2100 are used for evaporation to form the second color sub-pixel 120; the third precision metal mask 3000 has a plurality of third openings 3100, the third openings 3100 are used for evaporation to form the third color sub-pixel 130, wherein at least one of the length extension direction of the first opening 1100, the length extension direction of the second opening 2100 and the length extension direction of the third opening 3100 intersects with the first direction, and the included angle is 30° to 60°. Thus, the pixel arrangement structure formed by evaporation of the above mask assembly can change the direction of the emitted light, thereby greatly reducing the reflection efficiency of light in a certain direction, reducing glare, and improving the display effect.

[0074] Those skilled in the art can understand that the length extension direction of the first opening 1100 is consistent with the length extension direction of the required first color sub-pixel, the length extension direction of the second opening 2100 is consistent with the length extension direction of the required second color sub-pixel, and the length extension direction of the third opening 3100 is consistent with the length extension direction of the required third color sub-pixel. In some specific embodiments, Figure 1and Fig.13 , the length extension direction of the first color sub-pixel is direction x or a direction perpendicular to direction x, and the length extension direction of the first opening 1100 is direction x or a direction perpendicular to direction x; Figure 1 and Fig.14 , the second color sub-pixel 120 has two length extension directions, namely direction y and direction z, that is, the second opening includes two second openings 2100 with different length extension directions, a portion of the second openings 2100 has a length extension direction of direction y, and another portion of the second openings 2100 has a length extension direction of direction z; Figure 1 and Fig.15 The third color sub-pixel 130 has two length extension directions, namely direction y and direction z, that is, the third opening includes two third openings 3100 with different length extension directions, a part of the third openings 3100 has a length extension direction of direction y, and another part of the third openings 3100 has a length extension direction of direction z.

[0075] According to an embodiment of the present invention, a first opening 1100 is evaporated to form a first color sub-pixel 110; a second opening 2100 has a size that is half the size of a second color sub-pixel 120, and half of the second color sub-pixel 120 is formed in one evaporation process, and the length extension directions of the second openings 2100 in two adjacent columns are different, specifically: among the second openings 2100 in two adjacent columns, the length extension direction of the second openings 2100 in one column is direction y, and the length extension direction of the second openings 2100 in the other column is direction z; a third opening 3100 has a size that is half the size of a third color sub-pixel 130, and half of the second color sub-pixel is formed in one evaporation process, and the length extension directions of the third openings 3100 in two adjacent columns are different, specifically: among the third openings 3100 in two adjacent columns, the length extension direction of the third openings 3100 in one column is direction y, and the length extension direction of the third openings 3100 in the other column is direction z.

[0076] According to an embodiment of the present invention, referring to Fig.18 and Fig.19 , the mask assembly also satisfies at least one of the following conditions:

[0077] like Fig.18 and Figure 4 As shown, the second precision metal mask 2000 also has a plurality of second sub-openings 2200, the second openings 2100 and the second sub-openings 2200 correspond to each other and are connected, and the second sub-openings 2200 are used for evaporation to form the second color connection section 123; Fig.19As shown, the third precision metal mask 3000 also has a plurality of third sub-openings 3200, the third openings 3100 and the third sub-openings 3200 correspond to each other and are connected, and the third sub-openings 3200 are used for evaporation to form the third color connecting segments 133 and Figure 4 The first and second segments of the second color sub-pixel formed by the second precision metal mask 2000 are connected by a curve, and the third and fourth segments of the third color sub-pixel formed by the third precision metal mask 3000 are also connected by a curve. In this way, there is no inflection point formed by a straight line in the first direction of the sub-pixel (such as Figure 4 As shown, Figure 1 and Figure 2 Adjacent sub-pixels in the image are directly connected by straight lines, resulting in an inflection point formed by the straight line), thereby preventing light from concentrating at the inflection point and causing an obvious luminous effect.

[0078] In another aspect of the present invention, the present invention provides a method for manufacturing the aforementioned pixel arrangement structure using the aforementioned mask assembly, specifically:

[0079] The method steps for forming the first color sub-pixel include: using a first precision metal mask to form the first color sub-pixel by evaporating through a first opening into an opening in a pixel defining layer where the first color sub-pixel is to be set.

[0080] Reference Fig.16 , the method steps for forming the second color sub-pixel 120 include:

[0081] S210: using the second precision metal mask 2000, vapor deposition is performed through the second opening 2100 into the opening in the pixel definition layer where the second color sub-pixel is to be set to form half of the second color sub-pixel;

[0082] S220: Then, the second precision metal mask 2000 performs a first movement and a second movement, wherein the direction of the first movement is parallel to the first direction ( Fig.16 The moving distance is the column spacing d1 of the second openings of two adjacent columns, and the second moving direction is parallel to the second direction ( Fig.16 Taking upward movement as an example), the moving distance is the row spacing d2 of the second openings of two adjacent rows;

[0083] There is no special requirement for the order of the first move and the second move. The first move can be performed first, and then the second move. Fig.16 As shown, of course, the second movement can be performed first, and then the first movement can be performed, so that the required second color sub-pixel structure can still be obtained.

[0084] S230: Finally, the other half of the second color sub-pixel is formed by evaporation through the second opening 2100, so as to obtain the second color sub-pixel 120 including the first segment 121 and the second segment 122. Figure 1 and 2 shown.

[0085] According to an embodiment of the present invention, referring to Fig.17 , the method steps for forming the third color sub-pixel include:

[0086] S310: using the third precision metal mask 3000, evaporating through the third opening 3100 into the opening in the pixel definition layer where the third color sub-pixel is to be set to form half of the third color sub-pixel 130;

[0087] S320: Then, the third precision metal mask 3000 is subjected to a third movement and a fourth movement, and the direction of the third movement is parallel to the first direction ( Fig.17 The moving distance is the row spacing d3 of the third openings 3100 of two adjacent rows, and the fourth moving direction is parallel to the second direction ( Fig.17 Taking upward movement as an example), the moving distance is the row spacing d4 between two adjacent rows of third openings 3100;

[0088] S330 : finally forming the other half of the third color sub-pixel 130 by evaporation through the third opening 3100 , thereby obtaining the third color sub-pixel 130 including the third segment 131 and the fourth segment 132 .

[0089] The above-mentioned method for manufacturing a pixel structure can effectively manufacture the above-mentioned pixel arrangement structure, and can reduce the number and size of openings of a precision metal mask, thereby facilitating the reduction of the mask manufacturing cost and the cost of manufacturing sub-pixels.

[0090] In another aspect of the present invention, the present invention provides a display device. According to an embodiment of the present invention, the display device includes the above-mentioned pixel arrangement structure. As a result, when a user looks at the screen of the display device from the side in a certain direction, glare is not easily generated, which greatly improves the user's viewing experience. It can be understood by those skilled in the art that the display device has all the features and advantages of the above-mentioned pixel arrangement structure.

[0091] According to the embodiments of the present invention, there are no special requirements for the specific type of the display device, and those skilled in the art can flexibly select it according to actual needs. In some embodiments, the specific types of the above-mentioned display device include but are not limited to the central control display screen in the vehicle, mobile phones, computers, televisions, game consoles and other electronic devices with display functions.

[0092] Among them, when the display device is a central control display screen in a vehicle, the pixel arrangement structure design of the present application can greatly reduce the reflectivity of light in the direction of the driver, thereby reducing glare, which can not only improve the display effect of the display screen, but also improve the driving safety of the driver.

[0093] Those skilled in the art will understand that, in addition to the pixel arrangement structure described above, the display device also includes other necessary structural components of a conventional display device. Taking a mobile phone as an example, in addition to the pixel arrangement structure described above, it also includes a TFT circuit structure, a cover plate, an audio component, a camera component, a touch component, a CPU, a battery and other necessary structures and components.

[0094] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0096] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A pixel arrangement structure, characterized in that: A plurality of pixel units and a pixel defining layer arranged in an array in a first direction and a second direction, wherein the pixel defining layer has a plurality of openings, wherein the pixel unit comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel arranged along the first direction, wherein the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are respectively arranged in one of the openings, wherein the long side direction of the opening intersects with the first direction, and the angle is 10° to 80°, and the first direction intersects with the second direction; Between the pixel units, the first color sub-pixel is adjacent to the second color sub-pixel or the third color sub-pixel; The second color sub-pixel includes a first segment and a second segment, and the first segment and the second segment both intersect with the first direction; the third color sub-pixel includes a third segment and a fourth segment, and the third segment and the fourth segment both intersect with the first direction, The side of the first segment close to the second segment is a first boundary line, the side of the second segment close to the first segment is a second boundary line, the side of the third segment close to the fourth segment is a third boundary line, and the side of the fourth segment close to the third segment is a fourth boundary line. In which, in the second direction, the first boundary line and the second boundary line are spaced apart, and the third boundary line and the fourth boundary line are located on the same straight line; or the first boundary line and the second boundary line are located on the same straight line, and the third boundary line and the fourth boundary line are spaced apart.

2. The pixel arrangement structure according to claim 1, characterized in that: The third color sub-pixel is recessed in a direction away from the first color sub-pixel, And / or, the second color sub-pixel is recessed in a direction away from the first color sub-pixel.

3. The pixel arrangement structure according to claim 1 or 2, characterized in that: The shape of the first color sub-pixel is symmetrical about a first straight line, and the first straight line is parallel to the first direction.

4. The pixel arrangement structure according to claim 3, characterized in that: The shape of the second color sub-pixel is symmetrical with respect to the first straight line, and / or the shape of the third color sub-pixel is symmetrical with respect to the first straight line.

5. The pixel arrangement structure according to claim 3, characterized in that: The pixel unit satisfies at least one of the following conditions: The shape of the first color sub-pixel is at least one of a quadrilateral, a circle, and an ellipse; The shape of the first segment and the shape of the second segment are at least one of a quadrilateral, a part of an ellipse, a part of a circle, and a part of a crescent; The shape of the third segment and the shape of the fourth segment are at least one of a quadrilateral, a part of an ellipse, a part of a circle, and a part of a crescent.

6. The pixel arrangement structure according to claim 1, characterized in that: The second color sub-pixel and the third color sub-pixel satisfy at least one of the following conditions: (1) The orthographic projection of the first boundary line in the first direction completely overlaps with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction completely overlaps with the orthographic projection of the fourth boundary line in the first direction; (2) The orthographic projection of the first boundary line in the first direction partially overlaps with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction completely overlaps with the orthographic projection of the fourth boundary line in the first direction; (3) The orthographic projection of the first boundary line in the first direction has no overlapping area with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction completely overlaps with the orthographic projection of the fourth boundary line in the first direction; (4) The orthographic projection of the first boundary line in the first direction completely overlaps with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction partially overlaps with the orthographic projection of the fourth boundary line in the first direction; (5) the orthographic projection of the first boundary line in the first direction partially overlaps with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction partially overlaps with the orthographic projection of the fourth boundary line in the first direction; (6) The orthographic projection of the first boundary line in the first direction has no overlapping area with the orthographic projection of the second boundary line in the first direction, and the orthographic projection of the third boundary line in the first direction has a partial overlapping area with the orthographic projection of the fourth boundary line in the first direction.

7. The pixel arrangement structure according to claim 1, characterized in that: The first column of pixels and the second column of pixels in two adjacent columns are defined as a column pixel group, wherein the recessed opening of the third color sub-pixel in the first column of pixels in the same column pixel group is opposite to the recessed opening of the third color sub-pixel in the second column of pixels; in the column pixel groups of two adjacent columns, the recessed opening of the third color sub-pixel in the second column of pixels in one column pixel group is opposite to the recessed opening of the third color sub-pixel in the first column of pixels in the other column pixel group.

8. The pixel arrangement structure according to claim 3, characterized in that: The first color sub-pixel is a red sub-pixel, the second color sub-pixel is a green sub-pixel, and the third color sub-pixel is a blue sub-pixel. In the first direction, the green sub-pixel is located between the red sub-pixel and the blue sub-pixel, or the blue sub-pixel is located between the red sub-pixel and the green sub-pixel, When the green sub-pixel is located between the red sub-pixel and the blue sub-pixel in the first direction, the pixel brightness center of the pixel unit coincides with the brightness center of the green sub-pixel.

9. A pixel arrangement structure, characterized in that: A plurality of pixel units and a pixel defining layer arranged in an array in a first direction and a second direction, wherein the pixel defining layer has a plurality of openings, wherein the pixel unit comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel arranged along the first direction, wherein the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are respectively arranged in one of the openings, wherein the long side direction of the opening intersects with the first direction, and the angle is 10° to 80°, and the first direction intersects with the second direction; The second color sub-pixel includes a first segment and a second segment, and the first segment and the second segment both intersect with the first direction; the third color sub-pixel includes a third segment and a fourth segment, and the third segment and the fourth segment both intersect with the first direction; The pixel unit satisfies at least one of the following conditions: The first color sub-pixel includes a first straight edge, a first arc edge, a second straight edge, a second arc edge, a third straight edge, a third arc edge, a fourth straight edge and a fourth arc edge connected in sequence, and the first straight edge is connected to the fourth arc edge; The second color sub-pixel further includes a second color connecting segment for connecting the first segment and the second segment, and two sides of the second color connecting segment that are opposite to each other in the first direction are both curves; The third color sub-pixel further includes a third color connecting segment for connecting the third segment and the fourth segment, and two sides of the third color connecting segment that are opposite to each other in the first direction are both curves.

10. A mask assembly for manufacturing the pixel arrangement structure according to any one of claims 1 to 9, characterized in that: The mask assembly includes a first precision metal mask, a second precision metal mask and a third precision metal mask, wherein the first precision metal mask has a plurality of first openings, and the first openings are used for evaporation to form first color sub-pixels; the second precision metal mask has a plurality of second openings, and the second openings are used for evaporation to form second color sub-pixels; the third precision metal mask has a plurality of third openings, and the third openings are used for evaporation to form third color sub-pixels, wherein the length extension direction of at least one of the first opening, the second opening and the third opening intersects with the first direction, and the included angle is 30°~60°.

11. The mask assembly according to claim 10, characterized in that: One of the first openings is formed by evaporation to form a sub-pixel of the first color; The size of one of the second openings is half the size of one of the second color sub-pixels, half of the second color sub-pixel is formed in one evaporation process, and the length extension directions of the second openings in two adjacent columns are different; The size of one of the third openings is half the size of one of the third color sub-pixels, and half of the second color sub-pixel is formed by evaporation in one evaporation process. The length extension directions of the third openings in two adjacent columns are different.

12. The mask assembly according to claim 11, characterized in that: The mask assembly also satisfies at least one of the following conditions: The second precision metal mask also has a plurality of second sub-openings, the second openings correspond to the second sub-openings one by one and are connected, and the second sub-openings are used for evaporation to form second color connection segments; The third precision metal mask also has a plurality of third sub-openings, the third openings correspond to the third sub-openings one by one and are connected, and the third sub-openings are used for evaporation to form third color connecting segments.

13. A method for manufacturing the pixel arrangement structure according to any one of claims 1 to 9 using the mask assembly according to any one of claims 10 to 12, characterized in that: The method steps of forming a first color sub-pixel include: Using a first precision metal mask, evaporating through the first opening to form the first color sub-pixel, The method steps of forming the second color sub-pixel include: Using a second precision metal mask, vapor deposition is performed through the second opening to form half of the second color sub-pixel; Then, the second precision metal mask performs a first movement and a second movement, wherein the direction of the first movement is parallel to the first direction, and the moving distance is the column spacing of the second openings in two adjacent columns, and the second movement is parallel to the second direction, and the moving distance is the row spacing of the second openings in two adjacent rows; Finally, the other half of the second color sub-pixel is formed by evaporation through the second opening to obtain the second color sub-pixel including the first segment and the second segment. The method steps of forming the third color sub-pixel include: Using a third precision metal mask, forming half of the third color sub-pixel through a third opening by evaporation; Then, the third precision metal mask is subjected to a third movement and a fourth movement, wherein the direction of the third movement is parallel to the first direction, and the moving distance is the column spacing of the third openings in two adjacent columns, and the fourth movement is parallel to the second direction, and the moving distance is the row spacing of the third openings in two adjacent rows; Finally, the other half of the third color sub-pixel is formed by evaporation through the third opening to obtain the third color sub-pixel including a third segment and a fourth segment.

14. A display device, characterized in that: The invention comprises the pixel arrangement structure as described in any one of claims 1 to 9.

Images