Display substrate and display device
Patent Information
- Application Number
- CN202610975944.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-01
- Publication Date
- 2026-08-14
Smart Images
Figure CN122579837A_ABST
Abstract
Description
Technical Field
[0001] This disclosure belongs to the field of display technology, specifically relating to a display substrate and a display device. Background Technology
[0002] As display technology becomes increasingly prevalent, people enjoy sharing information with others, but also desire privacy in certain situations. For instance, some display products feature privacy and sharing modes. In privacy mode, only users at a narrow viewing angle can see the display; in sharing mode, users at a wide viewing angle can all see the display. Summary of the Invention
[0003] This disclosure provides a display substrate having a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels. The plurality of third sub-pixels are arranged in an array, with adjacent rows of third sub-pixels and adjacent columns of third sub-pixels being staggered. A first sub-pixel and a second sub-pixel are disposed between two adjacent third sub-pixels. The display substrate includes:
[0004] Substrate;
[0005] Multiple light-emitting devices are disposed on the substrate; the first sub-pixel, the second sub-pixel, and the third sub-pixel are all provided with the light-emitting devices;
[0006] A light-shielding layer is located on the side of the plurality of light-emitting devices away from the substrate. The light-shielding layer has a light-transmitting opening, and the orthographic projection of the light-emitting area of the light-emitting device on the substrate is located within the orthographic projection range of the light-transmitting opening on the substrate.
[0007] In this configuration, a plurality of first sub-pixels and a plurality of second sub-pixels are distributed around the third sub-pixel; a portion of the first sub-pixels and a portion of the second sub-pixels surrounding the third sub-pixel are privacy-protecting sub-pixels, and another portion of the first sub-pixels and another portion of the second sub-pixels surrounding the third sub-pixel are shared sub-pixels; in the shared sub-pixels, the distance between the orthogonal projection edge of the light-emitting area on the substrate and the orthogonal projection edge of the light-transmitting opening on the substrate is a first distance, and in the privacy-protecting sub-pixels, the distance between the orthogonal projection edge of the light-emitting area on the substrate and the orthogonal projection edge of the light-transmitting opening on the substrate is a second distance, wherein the first distance is greater than the second distance.
[0008] In some embodiments, the third sub-pixel is used to emit blue light, and at least a portion of the third sub-pixels in the display substrate are shared sub-pixels;
[0009] The total number of first sub-pixels in the display substrate is N, M of which are shared sub-pixels, and the remaining first sub-pixels are privacy-protecting sub-pixels; N and M are both positive integers, and M is 0.4 to 0.6 times N;
[0010] The total number of second sub-pixels in the display substrate is N, with M second sub-pixels being shared sub-pixels and the remaining second sub-pixels being privacy-protecting sub-pixels.
[0011] In some embodiments, each of the third sub-pixels is a shared sub-pixel.
[0012] In some embodiments, a first pixel group and a second pixel group are respectively provided on opposite sides of at least one of the third sub-pixels along the column direction. The first pixel group and the second pixel group each include a first sub-pixel and a second sub-pixel arranged along the row direction. The first sub-pixel and the second sub-pixel in the first pixel group are shared sub-pixels, and the first sub-pixel and the second sub-pixel in the second pixel group are privacy-protecting sub-pixels.
[0013] In some embodiments, a first pixel group and a second pixel group are provided between two adjacent third sub-pixels in the same row and between two adjacent third sub-pixels in the same column.
[0014] In some embodiments, the light-transmitting ports corresponding to each of the shared sub-pixels are interconnected to form a first connection port, and the light-shielding layer is divided into a plurality of light-shielding portions spaced apart by the first connection port.
[0015] In some embodiments, a third pixel group and a fourth pixel group are arranged around the third sub-pixel. The third pixel group and the third sub-pixel are arranged along a first direction, and the fourth pixel group and the third sub-pixel are arranged along a second direction. Both the first direction and the second direction intersect the row direction and the column direction.
[0016] Both the third pixel group and the fourth pixel group include the first sub-pixel and the second sub-pixel, and the first sub-pixel and the second sub-pixel in the third pixel group are shared sub-pixels, while the first sub-pixel and the second sub-pixel in the fourth pixel group are privacy-protecting sub-pixels.
[0017] In some embodiments, the third sub-pixels arranged along the first direction and the light-transmitting openings corresponding to the third pixel group are interconnected to form a second connection port.
[0018] In some embodiments, the second connection includes a first edge and a second edge arranged along the second direction, at least one of the first edge and the second edge being a straight edge extending along the first direction.
[0019] In some embodiments, in two adjacent rows of third sub-pixels, each of the third sub-pixels in one row is a privacy sub-pixel, and each of the third sub-pixels in the other row is a shared sub-pixel.
[0020] In some embodiments, a plurality of first sub-pixels and a plurality of second sub-pixels surrounding at least one third sub-pixel are divided into a fifth pixel group and a sixth pixel group, the fifth pixel group and the sixth pixel group being arranged along a column direction and each including at least two first sub-pixels and at least two second sub-pixels, the first sub-pixels and the second sub-pixels in the fifth sub-pixel being shared sub-pixels, and the first sub-pixels and the second sub-pixels in the sixth pixel group being privacy sub-pixels.
[0021] In some embodiments, the light-transmitting apertures corresponding to the fifth pixel group arranged along the row direction are connected.
[0022] In some embodiments, in two adjacent columns of the third sub-pixels, a first pixel group arranged along the column direction is provided around the third sub-pixel in one column, and a second pixel group arranged along the column direction is provided around the third sub-pixel in the other column. Both the first pixel group and the second pixel group include a first sub-pixel and a second sub-pixel that are adjacent to the third sub-pixel and arranged along the row direction.
[0023] The first sub-pixel, the second sub-pixel in the first pixel group, and the third sub-pixel arranged in the column direction with the first pixel group are all shared sub-pixels; the first sub-pixel and the second sub-pixel in the second pixel group, and the third sub-pixel arranged in the column direction with the second pixel group are all privacy-protecting sub-pixels.
[0024] In some embodiments, the light-transmitting ports corresponding to the shared sub-pixels arranged along the column direction are connected to form a third connection port.
[0025] In some embodiments, the third connection has a first direction and a second edge disposed opposite to each other in the row direction, wherein at least one of the first edge and the second edge is a straight edge.
[0026] In some embodiments, the display substrate further includes a polarizer layer located on the side of the light-shielding layer away from the substrate;
[0027] Alternatively, the display substrate may further include a color filter layer, which includes a first filter portion, a second filter portion, and a third filter portion, wherein the first filter portion is located in the first sub-pixel, the second filter portion is located in the second sub-pixel, and the third filter portion is located in the third sub-pixel.
[0028] This disclosure also provides a display device, which includes the display substrate described above. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the film layer structure of a display substrate provided in some embodiments of this disclosure.
[0030] Figure 2 This is a schematic diagram of the sub-pixel distribution of a display substrate provided in some embodiments of this disclosure.
[0031] Figure 3 This is a top view of sub-pixels and light-shielding layers provided in some embodiments of this disclosure.
[0032] Figure 4 for Figure 3 A magnified view of area A in the image.
[0033] Figure 5 This is a top view of subpixels and light-shielding layers provided in other embodiments of this disclosure.
[0034] Figure 6 for Figure 5 A magnified view of area B in the image.
[0035] Figure 7 This is a top view of the sub-pixels and light-shielding layers provided in some embodiments of this disclosure.
[0036] Figure 8 for Figure 7 A magnified view of area C in the image.
[0037] Figure 9 This is a top view of the sub-pixels and light-shielding layers provided in other embodiments of this disclosure.
[0038] Figure 10 for Figure 9 Enlarged view of a portion of area D in the middle.
[0039] Figure 11 This is a top view of the sub-pixels and light-shielding layers provided in some embodiments of this disclosure.
[0040] Figure 12 for Figure 11 Enlarged view of a portion of area E in the middle.
[0041] Figure 13 This is a top view of the sub-pixels and light-shielding layers provided in other embodiments of this disclosure.
[0042] Figure 14 for Figure 13 Enlarged view of a portion of the F region.
[0043] Figure 15This is a top view of the sub-pixels and light-shielding layers provided in some embodiments of this disclosure.
[0044] Figure 16 for Figure 15 Enlarged view of a portion of the G region.
[0045] Figure 17 This is a top view of the sub-pixels and light-shielding layers provided in other embodiments of this disclosure.
[0046] Figure 18 for Figure 17 Enlarged view of a portion of region H in the middle.
[0047] Figure 19 This is a top view of the sub-pixels and light-shielding layers provided in some embodiments of this disclosure.
[0048] Figure 20 for Figure 19 Enlarged view of a portion of region I.
[0049] Figure 21 This is a top view of the sub-pixels and light-shielding layers provided in other embodiments of this disclosure.
[0050] Figure 22 This is a schematic diagram of the film layer structure of a display substrate provided in some other embodiments of this disclosure.
[0051] Figure 23 This is a schematic diagram of the film layer structure of a display substrate provided in some embodiments of the present disclosure.
[0052] Figure 24 This is a schematic diagram of the film layer structure of a display substrate provided in some embodiments of this disclosure.
[0053] Figure 25 This is a schematic diagram showing the connection between the driving layer and the light-emitting device. Detailed Implementation
[0054] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0055] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this disclosure do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this disclosure are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to such processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this disclosure are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” in this disclosure refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can indicate: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," "third," etc., used in this disclosure are merely to distinguish similar objects and do not represent a specific ordering of objects. "Above," "below," "left," "right," etc., are only used to indicate relative positional relationships; when the absolute position of the described objects changes, the relative positional relationship may also change accordingly.
[0056] This document describes exemplary embodiments with reference to sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Therefore, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. Thus, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.
[0057] Figure 1 This is a schematic diagram of the film layer structure of the display substrate provided in some embodiments of this disclosure, such as... Figure 1As shown, the display substrate includes a substrate SUB, and a plurality of light-emitting devices 20 and a light-shielding layer BM disposed on the substrate SUB. The light-shielding layer BM is located on the side of the plurality of light-emitting devices 20 away from the substrate SUB, and the light-shielding layer BM has a light-transmitting aperture V. The orthographic projection of the light-emitting area of the light-emitting device 20 on the substrate SUB lies within the orthographic projection range of the light-transmitting aperture V on the substrate SUB. It should be noted that "the orthographic projection of the light-emitting area of the light-emitting device 20 on the substrate SUB lies within the orthographic projection range of the light-transmitting aperture V on the substrate SUB" can mean that the orthographic projection of the light-emitting area is located inside the orthographic projection of the light-transmitting aperture V and the two orthographic projection edges do not touch; or it can mean that the orthographic projection of the light-emitting area completely coincides with the orthographic projection of the light-transmitting aperture V.
[0058] For example, the light-emitting device 20 can be an OLED device, which includes a first electrode 21, a light-emitting layer 23, and a second electrode 22 sequentially disposed along a direction away from the substrate SUB. The display substrate may further include a pixel defining layer PDL, which includes a plurality of pixel openings. The first electrode 21 is located on the side of the pixel defining layer PDL facing the substrate SUB and is at least partially exposed by the pixel openings. At least a portion of the light-emitting layer 23 is located within the pixel openings. The light-emitting region of the light-emitting device 20 is the region where the light-emitting layer 23 is located within the pixel openings.
[0059] Figure 2 This is a schematic diagram of the sub-pixel distribution of a display substrate provided in some embodiments of this disclosure. Figure 3 This is a top view of the sub-pixels and the light-shielding layer BM provided in some embodiments of this disclosure. The light-shielding layer BM can be a single layer or multiple layers. Figure 4 for Figure 3 A magnified view of area A in the image. (See image for example.) Figure 2As shown, the display substrate has multiple sub-pixels P, including multiple first sub-pixels P1, multiple second sub-pixels P2, and multiple third sub-pixels P3. Each of the first sub-pixels P1, second sub-pixels P2, and third sub-pixels P3 is equipped with a light-emitting device 20. The first sub-pixels P1 emit a first color light, the second sub-pixels P2 emit a second color light, and the third sub-pixels P3 emit a third color light. For example, the light-emitting device 20 in the first sub-pixel P1 is used to emit a first color light, the light-emitting device 20 in the second sub-pixel P2 is used to emit a second color light, and the light-emitting device 20 in the third sub-pixel P3 is used to emit a third color light; as another example, each light-emitting device 20 is used to emit white light, and the first sub-pixel P1 is also provided with a first color filter, which is located on the light-emitting side of the light-emitting device 20 and is used to transmit the first color light and filter other colors of light; the second sub-pixel P2 is also provided with a second color filter, which is located on the light-emitting side of the light-emitting device 20 and is used to transmit the second color light and filter other colors of light; the third sub-pixel P3 is also provided with a third color filter, which is located on the light-emitting side of the light-emitting device 20 and is used to transmit the third color light and filter other colors of light. For example, the light-emitting device 20 in the first sub-pixel P1 emits a first color light, the light-emitting device 20 in the second sub-pixel P2 emits a second color light, and the light-emitting device 20 in the third sub-pixel P3 emits a third color light. Simultaneously, each light-emitting device 20 has a color filter on its light-emitting side, and the color of the color filter is the same as the color emitted by the light-emitting device 20. This embodiment uses red light as the first color light, green light as the second color light, and blue light as the third color light as an example for explanation, wherein the ratio of the number of the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3 is 2:2:1.
[0060] like Figure 2 As shown, multiple third sub-pixels P3 are arranged in an array. The third sub-pixels P3 in adjacent rows and adjacent columns are staggered. It should be noted that "the third sub-pixels P3 in adjacent rows and adjacent columns are staggered" means that the interval between a third sub-pixel P3 in the i-th row and the interval between two adjacent third sub-pixels P3 in the (i+1)-th row are set relative to each other; the interval between a third sub-pixel P3 in the (i+1)-th row and the interval between two adjacent third sub-pixels P3 in the i-th row are set relative to each other; the interval between a third sub-pixel P3 in the j-th column and the interval between two adjacent third sub-pixels P3 in the (j+1)-th column are set relative to each other; i is an integer less than the total number of rows of third sub-pixels P3, and j is an integer less than the total number of columns of third sub-pixels P3.
[0061] A first sub-pixel P1 and a second sub-pixel P2 are positioned between two adjacent third sub-pixels P3. Here, two adjacent third sub-pixels P3 refer to two adjacent pixels in the same row and two adjacent pixels in the same column. Multiple third sub-pixels P3 in the same row are arranged along... Figure 2 Arranged in the X direction, multiple third sub-pixels P3 in the same column along... Figure 2 The Y-direction is used for arrangement. In the following text, the row direction is the X-direction, and the column direction is the Y-direction. The X-direction and Y-direction intersect each other; for example, the X-direction and Y-direction are perpendicular to each other.
[0062] For example, each third sub-pixel P3 is surrounded by multiple first sub-pixels P1 and multiple second sub-pixels P2. For the same third sub-pixel P3, each of a portion of the first sub-pixels P1 and a portion of the second sub-pixels P2 surrounding it is a privacy sub-pixel P_p, and each of another portion of the first sub-pixels P1 and another portion of the second sub-pixels P2 is a shared sub-pixel P_s. Wherein, combined with Figure 1 , Figure 2 As shown, in the shared sub-pixel P_s, the distance between the orthographic projection edge of the light-emitting area of the light-emitting device 20 onto the substrate SUB and the orthographic projection edge of the corresponding light-transmitting port V onto the substrate SUB is a first distance d1, which is greater than 0. In the privacy-protecting sub-pixel P_p, the distance between the orthographic projection edge of the light-emitting area of the light-emitting device 20 onto the substrate SUB and the orthographic projection edge of the light-transmitting port V onto the substrate SUB is a second distance d2, which is greater than or equal to 0. The first distance d1 is greater than the second distance d2.
[0063] The display substrate has a privacy display mode and a shared display mode. In the privacy display mode, the light-emitting device 20 of the privacy sub-pixel P_p is controlled to emit light. For the privacy sub-pixel P_p, since the distance between the orthographic projection edge of the light-emitting area of the light-emitting device 20 and the orthographic projection edge of the light-emitting area of the light-emitting device 20 is relatively close, when the light-emitting device 20 in the privacy sub-pixel P_p emits light, large-angle light is blocked by the light-shielding layer BM. In the shared display mode, only the light-emitting device 20 of the shared sub-pixel P_s can be controlled to emit light, or the light-emitting devices 20 of the shared sub-pixel P_s and the light-emitting devices 20 of the privacy sub-pixel P_p can be controlled to emit light simultaneously. In the shared sub-pixel P_s, there is a large gap between the orthographic projection edge of the light-emitting area of the light-emitting device 20 and the orthographic projection edge of the light-emitting area of the light-emitting device V. Therefore, when the light-emitting device 20 in the shared sub-pixel P_s emits light, large-angle light is less blocked by the light-shielding layer BM, thus allowing the user to see greater brightness when viewing from a wide viewing angle.
[0064] In this embodiment of the disclosure, a first sub-pixel P1 and a second sub-pixel P2 are provided between two adjacent third sub-pixels P3 in the same row and between two adjacent third sub-pixels P3 in the same column. Therefore, from a side view (e.g.) Figure 2 When viewing the display from the left and right sides (or top and bottom sides), there will be no color shift caused by a large proportion of a single color subpixel. Furthermore, multiple shared subpixels P_s and multiple privacy subpixels P_p are simultaneously distributed around each third subpixel P3. A portion of the shared subpixels P_s around the third subpixel P3 is a first subpixel P1, and another portion is a second subpixel P2; a portion of the privacy subpixels P_p around the third subpixel P3 is a first subpixel P1, and another portion is a second subpixel P2. Therefore, regardless of whether in shared mode or privacy mode, each third subpixel P3 is surrounded by both first subpixels P1 and second subpixels P2, ensuring that no local dark areas appear in the display image in any mode, thus maintaining good uniformity and detail. Additionally, in this embodiment, the area of the light-transmitting opening V of the light-shielding layer BM is greater than or equal to the area of the corresponding subpixel, thereby reducing the complexity of the manufacturing process.
[0065] In some embodiments, at least a portion of the third sub-pixels P3 in the display substrate are shared sub-pixels P_s. The total number of first sub-pixels P1 in the display substrate is N, with M first sub-pixels P1 being shared sub-pixels P_s, and the remaining first sub-pixels P1 being privacy sub-pixels P_p. The total number of second sub-pixels P2 in the display substrate is N, where N is an even number. M second sub-pixels P2 are shared sub-pixels P_s, and the remaining second sub-pixels P2 are privacy sub-pixels P_p. M and N are both positive integers, with M being 0.4 to 0.6 times N, for example, M = N / 2. Thus, the number of first sub-pixels P1 used as privacy sub-pixels P_p and the number of first sub-pixels P1 used as shared sub-pixels P_s are the same or approximately the same; the number of second sub-pixels P2 used as privacy sub-pixels P_p and the number of second sub-pixels P2 used as shared sub-pixels P_s are the same or approximately the same, and in each display mode, the number of first sub-pixels P1 and second sub-pixels P2 participating in the display is the same, thereby further improving the uniformity and sharpness of the displayed image.
[0066] In some embodiments, such as Figure 3 , Figure 4As shown, each third sub-pixel P3 is a shared sub-pixel P_s. In this case, the third sub-pixel P3 can form a shared pixel unit Pa_s with an adjacent first sub-pixel P1 and an adjacent second sub-pixel P2 used as shared sub-pixels P_s. Simultaneously, the third sub-pixel P3 can form a privacy pixel unit Pa_p with an adjacent first sub-pixel P1 and an adjacent second sub-pixel P2 used as privacy pixel P_p. That is, the privacy pixel unit Pa_p can borrow the third sub-pixel P3 from the shared pixel unit Pa_s. In shared display mode, only the sub-pixels in the shared pixel unit Pa_s are controlled to emit light, or the sub-pixels in both the shared pixel unit Pa_s and the privacy pixel unit Pa_p are controlled to emit light simultaneously. In privacy display mode, the sub-pixels in the privacy pixel unit Pa_p are controlled to emit light. In this case, the same third sub-pixel P3 participates in the display of both the shared pixel unit Pa_s and the privacy display unit, so that the third sub-pixel P3 is fully utilized in both display modes. Furthermore, since the human eye is not sensitive to blue light, even if the privacy pixel unit Pa_p borrows the third sub-pixel P3 in the shared pixel unit Pa_s, it will not affect the privacy effect.
[0067] In some embodiments, such as Figure 3 As shown, at least one third sub-pixel P3 has a first pixel group Pg1 and a second pixel group Pg2 on opposite sides along the column direction. Both the first pixel group Pg1 and the second pixel group Pg2 include a first sub-pixel P1 and a second sub-pixel P2 arranged along the row direction. The first sub-pixel P1 and the second sub-pixel P2 in the first pixel group Pg1 are shared sub-pixels P_s, and the first sub-pixel P1 and the second sub-pixel P2 in the second pixel group Pg2 are both privacy-protecting sub-pixels P_p. The third sub-pixel P3 can form a shared pixel unit Pa_s with the first pixel group Pg1, and simultaneously form a privacy-protecting pixel unit Pa_p with one of the second pixel groups Pg2.
[0068] For example, each third sub-pixel P3 is provided with a first pixel group Pg1 and a second pixel group Pg2 on both sides along the column direction. That is, each third sub-pixel P3 can be used as a sub-pixel in the shared pixel unit Pa_s and is borrowed by the privacy pixel unit Pa_p. Thus, in the shared display mode and the privacy display mode, each third sub-pixel P3 is surrounded by a uniform number of first sub-pixels P1 and second sub-pixels P2, which further improves the uniformity and fineness of the display screen.
[0069] For example, a first pixel group Pg1 and a second pixel group Pg2 are set between two adjacent third sub-pixels P3 in the same row and between two adjacent third sub-pixels P3 in the same column. Therefore, in both the row and column directions, the anti-spy pixel unit Pa_p and the shared pixel unit Pa_s are arranged alternately, so that the display image has high display uniformity and fineness when viewed in both the row and column directions.
[0070] For example, such as Figure 3 As shown, the light-transmitting apertures V corresponding to different sub-pixels are independent of each other.
[0071] For example, such as Figure 2 As shown, the display substrate has multiple first oblique groups Pa and multiple second oblique groups Pb. Each first oblique group Pa includes multiple first sub-pixels P1 and multiple second sub-pixels P2 arranged along a first direction. Within the same first oblique group Pa, the first sub-pixels P1 and second sub-pixels P2 are arranged alternately, for example, alternating pairs of first sub-pixels P1 and second sub-pixels P2. Each second oblique group Pb includes multiple first sub-pixels P1 and second sub-pixels P2 arranged along a second direction. Within the same first oblique group Pa, the first sub-pixels P1 and second sub-pixels P2 are arranged alternately, for example, alternating pairs of first sub-pixels P1 and second sub-pixels P2. The first direction intersects both the row and column directions, and the second direction intersects both the row and column directions. For example, there is a 45° angle between the first direction and the row direction, and the second direction is perpendicular to the first direction.
[0072] For example, in the same first oblique group Pa, the center of the first sub-pixel P1 and the center of the second sub-pixel P2 are on the same straight line; in the same second oblique group Pb, the center of the first sub-pixel P1 and the center of the second sub-pixel P2 are on the same straight line. It should be noted that there may be a certain process error in ensuring that the centers of the first sub-pixel P1 and the second sub-pixel P2 are on the same straight line, as long as the centers of the first sub-pixel P1 and the second sub-pixel P2 are approximately on the same straight line.
[0073] For example, the third sub-pixel P3 is evenly distributed with equal spacing in both the row and column directions, and also evenly distributed with equal spacing in the first and second directions. Thus, the third sub-pixel P3 forms a highly symmetrical and uniform grid arrangement throughout the entire display area, ensuring that the positional relationship between the first sub-pixels P1 and the second sub-pixels P2 surrounding each third sub-pixel P3 remains consistent. This ensures that the displayed image remains uniform from different viewing angles, without significant directional differences. For example, the multiple first sub-pixels P1 and multiple second sub-pixels P2 in the first diagonal group Pa are mirror-symmetrical about a first axis of symmetry (which extends along a second direction), and the multiple first sub-pixels P1 and multiple second sub-pixels P2 in the second diagonal group Pb are mirror-symmetrical about a second axis of symmetry (which extends along a first direction), further improving the uniformity of the displayed image.
[0074] For example, such as Figure 2 As shown, around the same third sub-pixel P3, multiple first sub-pixels P1 and second sub-pixels P2 are evenly distributed, and along the circumference of the third sub-pixel P3, the first sub-pixels P1 and second sub-pixels P2 are arranged alternately. In this way, no matter which direction you look at it, the ratio of the first sub-pixels P1 and the second sub-pixels P2 around the third sub-pixel P3 is always consistent, avoiding color shift caused by an excess of red or green in one direction.
[0075] For example, such as Figure 2 As shown, in the same first diagonal group Pa and second diagonal group Pb, the first sub-pixel P1 and the second sub-pixel P2 are arranged alternately in pairs. The distance between two adjacent first sub-pixels P1 and the distance between two adjacent second sub-pixels P2 are both greater than the distance between adjacent first sub-pixels P1 and second sub-pixels P2. This is beneficial for improving color delicacy and natural transition through color mixing of adjacent first sub-pixels P1 and second sub-pixels P2 during display. At the same time, the larger distance between sub-pixels of the same color avoids color shift or graininess caused by the concentrated arrangement of sub-pixels of the same color, so that the displayed image remains uniform and delicate in the diagonal direction.
[0076] For example, such as Figure 2 As shown, the area of the third sub-pixel P3 (the sub-pixel that emits blue light) is larger than the area of either the first sub-pixel P1 (the sub-pixel that emits red light) or the second sub-pixel P2 (the sub-pixel that emits green light). Since the luminous efficiency of the blue light-emitting device 20 is generally lower than that of the red and green light-emitting devices 20, increasing the area of the blue sub-pixel can effectively increase the total light emitted by the blue sub-pixel, making up for its insufficient luminous efficiency. This allows the brightness of the red, green, and blue colors to be matched under white balance, avoiding color shift or overall yellowing of the image due to insufficient blue brightness.
[0077] For example, such as Figure 2 As shown, the third sub-pixel P3 is circular, while the first sub-pixel P1 and the second sub-pixel P2 are approximately elliptical. In the first oblique group Pa, the major axes of the first sub-pixel P1 and the second sub-pixel P2 both extend along a first direction, and the minor axes of the first sub-pixel P1 and the second sub-pixel P2 both extend along a second direction; in the second oblique group Pb, the major axes of the first sub-pixel P1 and the second sub-pixel P2 both extend along a second direction, and the minor axes of the first sub-pixel P1 and the second sub-pixel P2 both extend along a first direction.
[0078] It should be noted that the first sub-pixel P1 and the second sub-pixel P2 can also be inverted ellipses, such as the shape of a semicircle and a semi-ellipse joined together, or the shape of two semi-ellipses with different curvatures joined together.
[0079] Figure 5 This is a top view of the sub-pixels and the light-shielding layer BM provided in other embodiments of this disclosure. Figure 6 for Figure 5 A magnified view of area B in the image, such as Figure 5 , Figure 6 The illustrated embodiments and Figure 3 , Figure 4 The embodiments shown are similar, the only difference being that... Figure 5 and Figure 6 In this configuration, the light-transmitting ports V corresponding to each shared sub-pixel P_s are interconnected, forming a first connecting port V1. The light-shielding layer BM is divided into multiple spaced-apart light-shielding sections by the first connecting port V1; for example, the light-shielding sections can be island-shaped. This reduces the proportion of large-angle light emitted from the light-emitting device 20 being blocked by the light-shielding layer BM in the shared display mode, thereby improving the brightness decay (L-decay) in the shared display mode and enhancing the display brightness and luminous efficiency at large angles. Simultaneously, the interconnected light-transmitting ports V corresponding to each shared sub-pixel P_s reduce the fabrication difficulty of the light-shielding layer BM.
[0080] It should be noted that the light-transmitting port V corresponding to each privacy pixel P_p is spaced apart from the first connecting port V1 mentioned above.
[0081] Figure 7 This is a top view of the sub-pixels and the light-shielding layer BM provided in some embodiments of this disclosure. Figure 8 for Figure 7 A magnified view of area C in the image, such as Figure 7 and Figure 8 The illustrated embodiments and Figure 3 , Figure 4 In the example shown, the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3 are arranged in the same way. The difference lies in the arrangement of the anti-spy sub-pixel P_p and the shared sub-pixel P_s in the two embodiments. Figure 7and Figure 8 In this configuration, at least one third sub-pixel P3 is surrounded by a third pixel group Pg3 and a fourth pixel group Pg4. The third pixel group Pg3 and the third sub-pixel P3 are arranged along a first direction, and the fourth pixel group Pg4 and the third sub-pixel P3 are arranged along a second direction. Both the first and second directions intersect the row direction and the column direction. For example, the first direction forms a 45° angle with the row direction and with the column direction, and the second direction is perpendicular to the first direction. Both the third pixel group Pg3 and the fourth pixel group Pg4 include a first sub-pixel P1 and a second sub-pixel P2. The first sub-pixel P1 and the second sub-pixel P2 in the third pixel group Pg3 are shared sub-pixels P_s, and the first sub-pixel P1 and the second sub-pixel P2 in the fourth pixel group Pg4 are privacy-protected sub-pixels P_p. The third sub-pixel P3 can form a shared pixel unit Pa_s with the third pixel group Pg3, and simultaneously form a privacy-protected pixel unit Pa_p with the fourth pixel group Pg4.
[0082] For example, each third sub-pixel P3 is surrounded by a third pixel group Pg3 and a fourth pixel group Pg4. In this case, the privacy pixel unit Pa_p and the shared pixel unit Pa_s are arranged alternately in both the row and column directions, resulting in high display uniformity and detail when viewed in both the row and column directions.
[0083] For example, at least one third sub-pixel P3 is surrounded by two third pixel groups Pg3 and two fourth pixel groups Pg4. The third pixel groups Pg3 surrounding the same third sub-pixel P3 are arranged along a first direction, and the fourth pixel groups Pg4 surrounding the same third sub-pixel P3 are arranged along a second direction.
[0084] For example, in Figure 7 and Figure 8 In this context, the light-transmitting apertures V corresponding to different sub-pixels are independent of each other.
[0085] Figure 9 This is a top view of the sub-pixels and light-shielding layer BM provided in other embodiments of this disclosure. Figure 10 for Figure 9 Enlarged view of a section in area D. Figure 9 , Figure 10 The illustrated embodiments and Figure 7 , Figure 8 The embodiments shown are similar, except that, in Figure 9 and Figure 10In this configuration, the light-transmitting ports V corresponding to multiple third sub-pixels P3 arranged along the first direction and the third pixel group Pg3 are interconnected, forming a second connection port V2. This reduces the proportion of large-angle light emitted from the light-emitting device 20 being blocked by the light-shielding layer BM in the shared display mode, thereby improving brightness decay (L-decay) in the shared display mode and enhancing display brightness and luminous efficiency at large angles. Simultaneously, the interconnection of the light-transmitting ports V corresponding to the third sub-pixels P3 arranged along the first direction reduces the fabrication difficulty of the light-shielding layer BM. Figure 9 In the middle, the light-shielding layer BM is divided into multiple light-shielding sections that are roughly diagonal strips by multiple second connecting ports V2.
[0086] For example, the second connection port V2 includes a first edge E1 and a second edge E2 arranged along a second direction, wherein the minimum distance from the first edge E1 to the third pixel group Pg3 is approximately equal to the minimum distance from the first edge E1 to the third sub-pixel P3, and the minimum distance from the second edge E2 to the third pixel group Pg3 is approximately equal to the minimum distance from the second edge E2 to the third sub-pixel P3.
[0087] For example, both the first edge E1 and the second edge E2 are curved edges. For instance, both the first edge E1 and the second edge E2 include a connected first arcuate portion and a second arcuate portion. The first arcuate portion is opposite to the third pixel group Pg3, and the second arcuate portion is opposite to the third sub-pixel P3. The curvature of the first arcuate portion is greater than the curvature of the second arcuate portion. The first arcuate portion can approximately conform to the edge of the adjacent first sub-pixel P1 or second sub-pixel P2, and the second arcuate portion can approximately conform to the edge of the third sub-pixel P3.
[0088] The light-transmitting port V corresponding to the privacy pixel P_p is spaced apart from the second connecting port V2.
[0089] Figure 11 This is a top view of the sub-pixels and the light-shielding layer BM provided in some embodiments of this disclosure. Figure 12 for Figure 11 Enlarged view of a portion of area E in the middle. Figure 11 , Figure 12 The illustrated embodiments and Figure 9 , Figure 10 The embodiments shown are similar, except that, in Figure 11 and Figure 12In the second connection port V2, there are first edges E1 and second edges E2 arranged along a second direction. At least one of the first edge E1 and the second edge E2 is a straight edge extending along the first direction. This allows the edge of the light-shielding layer BM to be set as a straight-edged strip, thereby further reducing the fabrication difficulty of the light-shielding layer BM. For example, the first edge E1 and the second edge E2 of the second connection port V2 are both straight edges extending along the first direction.
[0090] Figure 13 This is a top view of the sub-pixels and light-shielding layer BM provided in other embodiments of this disclosure. Figure 14 for Figure 13 Enlarged view of a portion of region F in the middle, as shown below. Figure 13 and Figure 14 The illustrated embodiments and Figure 3 , Figure 4 In the example shown, the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3 are arranged in the same way. The difference lies in the arrangement of the anti-spy sub-pixel P_p and the shared sub-pixel P_s in the two embodiments. Figure 13 and Figure 14 As shown, in two adjacent rows of third sub-pixels P3, each third sub-pixel P3 in one row is a privacy-prevention sub-pixel P_p, and each third sub-pixel P3 in the other row is a shared sub-pixel P_s.
[0091] For example, such as Figure 13 and Figure 14 As shown, the multiple first sub-pixels P1 and multiple second sub-pixels P2 surrounding the third sub-pixel P3 are divided into a fifth pixel group Pg5 and a sixth pixel group Pg6. The fifth pixel group Pg5 and the sixth pixel group Pg6 are arranged along the column direction and each includes at least two first sub-pixels P1 and at least two second sub-pixels P2. The first sub-pixels P1 and second sub-pixels P2 in the fifth pixel group Pg5 are shared sub-pixels P_s, and the first sub-pixels P1 and second sub-pixels P2 in the sixth pixel group Pg6 are both privacy-protecting sub-pixels P_p. In this case, the third sub-pixel P3, as a shared sub-pixel P_s, forms a shared pixel unit Pa_s with the adjacent fifth pixel group Pg5; the third sub-pixel P3, as a privacy-protecting sub-pixel P_p, forms a privacy-protecting pixel unit Pa_p with the adjacent sixth pixel group Pg6.
[0092] For example, the fifth pixel group Pg5 and the sixth pixel group Pg6 are arranged along the column direction. A reference line extending along the row direction from the center of the third sub-pixel P3 divides the sub-pixels surrounding the third sub-pixel P3 into the fifth pixel group Pg5 and the sixth pixel group Pg6. Both the fifth pixel group Pg5 and the sixth pixel group Pg6 include two first sub-pixels P1 and two second sub-pixels P2. The fifth pixel group Pg5 and the sixth pixel group Pg6 are centrally symmetrical (the fifth pixel group Pg5 roughly coincides with the sixth pixel group Pg6 after rotating 180° around the center of the third sub-pixel P3).
[0093] For example, in one of two adjacent rows, the subpixels surrounding each third subpixel P3 are divided into a fifth pixel group Pg5 and a sixth pixel group Pg6, with the fifth pixel group Pg5 located below the third subpixel P3 and the sixth pixel group Pg6 located above the third subpixel P3; in the other row, the subpixels surrounding each third subpixel P3 are divided into a fifth pixel group Pg5 and a sixth pixel group Pg6, with the fifth pixel group Pg5 located above the third subpixel P3 and the sixth pixel group Pg6 located below the third subpixel P3. In this case, for the third sub-pixel P3 in two adjacent rows, each third sub-pixel P3 in one row and its adjacent fifth pixel group Pg5 form a shared pixel unit Pa_s, and each third sub-pixel P3 in the other row and its adjacent sixth pixel group Pg6 form a privacy pixel unit Pa_p. Multiple first sub-pixels P1 and multiple second sub-pixels P2 in the same privacy pixel unit Pa_p share the same third sub-pixel P3, and multiple first sub-pixels P1 and multiple second sub-pixels P2 in the same shared pixel unit Pa_s also share the same third sub-pixel P3, making the display image more delicate in the horizontal direction.
[0094] Figure 15 This is a top view of the sub-pixels and the light-shielding layer BM provided in some embodiments of this disclosure. Figure 16 for Figure 15 A magnified view of a portion of area G in the middle, as shown below. Figure 15 and Figure 16 The illustrated embodiments and Figure 13 , Figure 14 The examples shown are similar, the difference being that... Figure 13 and Figure 14 In the diagram, the light-transmitting aperture V corresponding to each sub-pixel is independent of each other, while... Figure 15 and Figure 16 In the middle, the light-transmitting ports V corresponding to the fifth pixel group Pg5 arranged along the row direction are connected, thereby improving the brightness decay (L-decay) in the shared display mode and improving the display brightness and luminous efficiency at a large angle; at the same time, it reduces the difficulty of fabricating the light-shielding layer BM.
[0095] For example, the third sub-pixel P3, which is used as a shared sub-pixel P_s, and the adjacent fifth pixel group Pg5 constitute a shared pixel unit Pa_s. The light-transmitting holes V corresponding to the multiple shared pixel units Pa_s arranged along the row direction are interconnected, thereby dividing the light-shielding layer BM into multiple horizontal strip structures extending along the X direction.
[0096] Figure 17 This is a top view of the sub-pixels and light-shielding layer BM provided in other embodiments of this disclosure. Figure 18 for Figure 17 Enlarged view of a portion of region H in the middle. Figure 17 , Figure 18 The illustrated embodiments and Figure 3 , Figure 4 In the example shown, the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3 are arranged in the same way. The difference lies in the arrangement of the anti-spy sub-pixel P_p and the shared sub-pixel P_s in the two embodiments. Figure 17 and 18 As shown, in two adjacent columns of third sub-pixels P3, one column of third sub-pixel P3 is surrounded by a first pixel group Pg1 arranged along the column direction, and the other column of third sub-pixel P3 is surrounded by a second pixel group Pg2 arranged along the column direction. Both the first pixel group Pg1 and the second pixel group Pg2 include a first sub-pixel P1 and a second sub-pixel P2 adjacent to the third sub-pixel P3 and arranged along the row direction. For example, both the first pixel group Pg1 and the second pixel group Pg2 include one first sub-pixel P1 and one second sub-pixel P2. The first sub-pixel P1 and the second sub-pixel P2 in the first pixel group Pg1, as well as the third sub-pixel P3 arranged along the column direction, are all shared sub-pixels P_s. Similarly, the first sub-pixel P1 and the second sub-pixel P2 in the second pixel group Pg2, as well as the third sub-pixel P3 arranged along the column direction, are all privacy-protecting sub-pixels P_p.
[0097] For example, in two adjacent columns, each third sub-pixel P3 in one column corresponds to two first pixel groups Pg1, with the two first pixel groups Pg1 located on opposite sides of the third sub-pixel P3 and arranged along the column direction. In the other column, each third sub-pixel P3 corresponds to two second pixel groups Pg2, with the two second pixel groups Pg2 located on opposite sides of the third sub-pixel P3 and arranged along the column direction. In two adjacent rows, each third sub-pixel P3 and its corresponding two first pixel groups Pg1 in one row constitutes a shared pixel unit Pa_s, and each third sub-pixel P3 and its corresponding two second pixel groups Pg2 in the other row constitutes a privacy pixel unit Pa_p. In the same shared pixel unit Pa_s, the third sub-pixel P3 is shared by the two first pixel groups Pg1 in the column direction, and in the same privacy pixel unit Pa_p, the third sub-pixel P3 is shared by the two second pixel groups Pg2 in the column direction, making the display image more detailed in the vertical direction.
[0098] exist Figure 17 and Figure 18 In this context, the light-transmitting apertures V corresponding to different sub-pixels are independent of each other.
[0099] Figure 19 This is a top view of the sub-pixels and the light-shielding layer BM provided in some embodiments of this disclosure. Figure 20 for Figure 19 Enlarged view of a portion of region I. Figure 19 , Figure 20 The illustrated embodiments and Figure 17 , Figure 18 The embodiments shown are similar, the only difference being that... Figure 17 and Figure 18 In the diagram, the light-transmitting aperture V corresponding to each sub-pixel is independent of each other, while... Figure 19 and Figure 20 In the middle, the light-transmitting ports V corresponding to the shared sub-pixels P_s arranged along the column direction are connected to form a third connection port V3. Multiple third connection ports V3 divide the light-shielding layer BM into multiple vertical strip-shaped structures extending along the Y direction.
[0100] Among them, Figure 19 and Figure 20In the third connection port V3, there are a first edge E1 and a second edge E2 arranged opposite to each other in the X direction, both of which are curved edges. For example, both the first edge E1 and the second edge E2 include a connected first arcuate portion and a second arcuate portion. The first arcuate portion is opposite to the first pixel group Pg1, and can be roughly adapted to the edge of the adjacent first sub-pixel P1 or second sub-pixel P2. The second arcuate portion is opposite to the third sub-pixel P3, and can be roughly adapted to the edge of the third sub-pixel P3. By setting the first edge E1 and the second edge E2 as curved edges, the light emitted by each shared sub-pixel P_s is more evenly distributed when passing through the third connection port V3, improving the uniformity of the displayed image seen from various angles.
[0101] Figure 21 This is a top view of the sub-pixels and light-shielding layer BM provided in other embodiments of this disclosure. Figure 21 The illustrated embodiments and Figure 19 , Figure 20 The embodiments shown are similar, the only difference being that... Figure 21 In the third connection port V3, there are a first edge E1 and a second edge E2 disposed opposite to each other in the X direction. At least one of the first edge E1 and the second edge E2 is a straight edge, which can further reduce the fabrication difficulty of the light-shielding layer BM. For example, the first edge E1 and the second edge E2 of the third connection port V3 are both straight edges extending along the first direction.
[0102] refer to Figure 1 In some embodiments of this disclosure, the display substrate further includes an encapsulation structure located on the side of the plurality of light-emitting devices 20 away from the substrate SUB, and a light-shielding layer BM located on the side of the encapsulation structure away from the substrate SUB. The encapsulation structure covers the pixel defining layer PDL and the light-emitting devices 20, and is used to encapsulate the light-emitting devices 20 to prevent moisture and / or oxygen in the external environment from corroding the light-emitting devices 20. In some embodiments, the encapsulation structure includes a first inorganic encapsulation layer CVD1, a second inorganic encapsulation layer CVD2, and an organic encapsulation layer IJP. The second inorganic encapsulation layer CVD2 is located on the side of the first inorganic encapsulation layer CVD1 away from the substrate SUB, and the organic encapsulation layer IJP is located between the first inorganic encapsulation layer CVD1 and the second inorganic encapsulation layer CVD2. Both the first inorganic encapsulation layer CVD1 and the second inorganic encapsulation layer CVD2 can be made of highly dense inorganic materials such as silicon oxynitride (SiON), silicon oxide (SiOx), and silicon nitride (SiNx). The organic encapsulation layer IJP can be made of a polymer material containing a desiccant or a polymer material that can block moisture. For example, a polymer resin can be used to relieve the stress of the first inorganic encapsulation layer CVD1 and the second inorganic encapsulation layer CVD2. It can also include water-absorbing materials such as desiccants to absorb water, oxygen and other substances that have penetrated into the interior.
[0103] like Figure 1 As shown, the display substrate may further include a cover layer OC1 and a polarizer POL. The cover layer OC1 is located on the side of the light-shielding layer BM away from the substrate SUB, and the polarizer POL is located on the side of the cover layer OC1 away from the substrate SUB. The polarizer POL is a circular polarizer, which can reduce the reflection of ambient light from the display substrate. A first optical adhesive layer OCA1 may be disposed between the polarizer POL1 and the cover layer OC1.
[0104] Figure 22 This is a schematic diagram of the film layer structure of the display substrate provided in other embodiments of this disclosure. Figure 22 The membrane structure shown is similar to Figure 1 Similar, the difference lies in, in Figure 22 In the display substrate, the second optical adhesive layer OCA2 and the cover plate CG are also included. The second optical adhesive layer OCA2 is located on the side of the polarizer POL away from the substrate SUB, and the cover plate CG is located on the side of the second optical adhesive layer OCA2 away from the substrate SUB.
[0105] Figure 23 This is a schematic diagram of the film layer structure of a display substrate provided in some embodiments of the present disclosure. Figure 23 The membrane structure shown is similar to Figure 1 Similar, the difference lies in, in Figure 23 In this design, the display substrate also includes a color filter layer, eliminating the need for a polarizer (POL). The color filter layer includes a color filter (CF) located in each sub-pixel, with at least a portion of the CF situated within a light-transmitting aperture (V). The orthographic projection of the light-emitting device 20 onto the substrate SUB overlaps with the orthographic projection of the color filter (CF) onto the substrate SUB. The color of the color filter (CF) is the same as the emitted light color of the corresponding sub-pixel. By incorporating the color filter (CF), the color gamut of the display substrate can be improved, and the reflection of ambient light can be reduced. The capping layer (OC1) is located on the side of the light-shielding layer (BM) and the color filter layer furthest from the substrate SUB.
[0106] In some embodiments, the color filter layer can be replaced with a grayscale layer (gray OC). The grayscale layer's spectrum has transmittance troughs in the wavelength range of 480nm to 530nm and in the wavelength range of 580nm to 630nm. This results in three transmittance peaks at wavelengths of 380nm to 480nm, 480nm to 580nm, and 630nm to 780nm, corresponding to blue, green, and red light respectively, thus enabling the grayscale layer to transmit all three colors of light.
[0107] Figure 24 This is a schematic diagram of the film layer structure of a display substrate provided in some embodiments of this disclosure. Figure 24 The membrane structure shown is similar to Figure 23 Similar, the difference lies in, in Figure 24 In this design, a spacer layer EOC is disposed between the encapsulation structure and the light-shielding layer BM, with the light-shielding layer BM located on the side of the spacer layer EOC away from the substrate SUB. The spacer layer EOC may include multiple openings, each corresponding to a light-transmitting opening V of the light-shielding layer BM, with a portion of the color filter CF located within one of these openings. The refractive index of the spacer layer EOC is lower than that of the color filter CF, thus facilitating total internal reflection when light emitted from the light-emitting device 20 is incident on the sidewall of the opening via the color filter CF, thereby improving light utilization.
[0108] For example, a touch electrode and a touch cover layer (not shown) may also be disposed between the spacer layer EOC and the packaging structure. The touch electrode is used to detect the touch position, and the orthographic projection of the touch electrode on the substrate SUB does not overlap with the orthographic projection of the light-emitting area of the light-emitting device 20 on the substrate SUB. The touch cover layer is located on the side of the touch electrode away from the substrate SUB and is a continuous film layer, thereby providing a flat surface for the color filter section CF.
[0109] In this embodiment, at least one of the light-shielding layer BM and the color filter layer can be located between the encapsulation structure and the layer containing the touch electrode, or on the side of the layer containing the touch electrode away from the substrate SUB, or on the side of the encapsulation structure close to the substrate SUB, or between multiple encapsulation layers (i.e., the first inorganic encapsulation layer CVD1, the second inorganic encapsulation layer CVD2, and the organic encapsulation layer IJP), for example, between the first inorganic encapsulation layer CVD1 and the organic encapsulation layer IJP, or between the organic encapsulation layer IJP and the second inorganic encapsulation layer CVD2. The color filter CF can be located on the side of the light-shielding layer BM away from the substrate SUB, or on the side close to the substrate SUB. The color filter CF and the light-shielding layer BM may be without any other film layers, or may be separated by one or more other film layers.
[0110] In this embodiment, the light-shielding layer BM can be a black matrix, or a metal, metal oxide, or a structure formed by stacking color filter layers of different colors.
[0111] For example, the light-shielding layer BM can be formed as part of the color filter layer. For instance, the light-shielding layer BM may include a first filter layer, a second filter layer, and a third filter layer stacked together. The color filter layer includes color filter portions CF located in the first pixel region P1, the second pixel region P2, and the third pixel region P3. The first filter layer is made of the same material as the color filter portion CF in the first pixel region P1, the second filter layer is made of the same material as the color filter portion CF in the second pixel region P1, and the third filter layer is made of the same material as the color filter portion CF in the third pixel region P3.
[0112] like Figure 1 , Figures 22 to 24 As shown, the display substrate may also include a driving layer 10, which is located between the light-emitting device 20 and the substrate SUB, and is used to provide driving signals for the light-emitting device 20. Figure 25 This is a schematic diagram showing the connection between the driving layer and the light-emitting device, as shown below. Figure 25 As shown, the driving layer includes pixel circuitry, which comprises multiple transistors and capacitors. Figure 25 Only one capacitor and one transistor in the pixel circuit are shown in the diagram. The active layer 131 of transistor 130 is disposed on the substrate SUB. The active layer 131 includes a channel portion and source and drain connection portions located on either side of the channel portion. The source connection portion is connected to the source 133 of transistor 130, and the drain connection portion is connected to the drain 134 of transistor 130. In one example, to prevent or reduce the diffusion of metal atoms and / or impurities from the substrate SUB into the active layer of the transistor, a buffer layer BFL can be disposed between the active layer 131 and the substrate SUB.
[0113] like Figure 25 As shown, a first gate insulating layer GI1 is disposed on the side of the active layer 131 away from the substrate SUB, and a first gate electrode layer is disposed on the first gate insulating layer GI1. The first gate electrode layer includes the gate 132 of each transistor 130 and the first electrode plate 141 of the capacitor 140. A second gate insulating layer GI2 is disposed on the first gate electrode layer, and a second gate electrode layer is disposed on the second gate insulating layer GI2. The second gate electrode layer may include the second electrode plate 142 of the capacitor 140. An interlayer insulating layer ILD is disposed on the second gate electrode layer, and the source 133 and drain 134 of each transistor are disposed on the side of the interlayer insulating layer ILD away from the substrate SUB. A passivation layer PVX is disposed on the side of the layer containing the source 133 and drain 134 away from the substrate SUB, and a planarization layer PLN is located on the side of the passivation layer PVX away from the substrate SUB. The surface of the planarization layer PLN away from the substrate SUB is substantially flat. The planarization layer PLN is made of organic insulating materials, such as polyimide, epoxy resin, acrylic, polyester, photoresist, polyacrylate, polyamide, siloxane, and other resin-based materials. Alternatively, the organic insulating material may include elastic materials such as urethane or thermoplastic polyurethane (TPU).
[0114] like Figure 25 As shown, the pixel defining layer PDL and the first electrode 21 of the light-emitting device 20 are disposed on the side of the planarization layer PLN away from the substrate SUB. The first electrode 21 is electrically connected to the drain 134 of the transistor 130 through a via penetrating the planarization layer PLN. The pixel defining layer PDL can be made of a light-shielding material.
[0115] This disclosure also provides a display device, which includes the display substrate described above.
[0116] The embodiments of this application can be applied to organic light-emitting elements (OLEDs), multilayer organic light-emitting elements (Tandom OLEDs), quantum dot light-emitting elements (QDs), light-emitting diodes (LEDs), or micro-LEDs (including mini-LEDs or micro-LEDs).
[0117] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.
Claims
1. A display substrate having a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, wherein the plurality of third sub-pixels are arranged in an array, with adjacent rows of third sub-pixels and adjacent columns of third sub-pixels being staggered, and a first sub-pixel and a second sub-pixel being disposed between adjacent two third sub-pixels; wherein, The display substrate includes: Substrate; Multiple light-emitting devices are disposed on the substrate; the first sub-pixel, the second sub-pixel, and the third sub-pixel are all provided with the light-emitting devices; A light-shielding layer is located on the side of the plurality of light-emitting devices away from the substrate. The light-shielding layer has a light-transmitting opening, and the orthographic projection of the light-emitting area of the light-emitting device on the substrate is located within the orthographic projection range of the light-transmitting opening on the substrate. In this configuration, a plurality of first sub-pixels and a plurality of second sub-pixels are distributed around the third sub-pixel; a portion of the first sub-pixels and a portion of the second sub-pixels surrounding the third sub-pixel are privacy-protecting sub-pixels, and another portion of the first sub-pixels and another portion of the second sub-pixels surrounding the third sub-pixel are shared sub-pixels; in the shared sub-pixels, the distance between the orthogonal projection edge of the light-emitting area on the substrate and the orthogonal projection edge of the light-transmitting opening on the substrate is a first distance, and in the privacy-protecting sub-pixels, the distance between the orthogonal projection edge of the light-emitting area on the substrate and the orthogonal projection edge of the light-transmitting opening on the substrate is a second distance, wherein the first distance is greater than the second distance.
2. The display substrate according to claim 1, wherein, The third sub-pixel is used to emit blue light, and at least a portion of the third sub-pixels in the display substrate are shared sub-pixels; The total number of first sub-pixels in the display substrate is N, M of which are shared sub-pixels, and the remaining first sub-pixels are privacy-protecting sub-pixels; N and M are both positive integers, and M is 0.4 to 0.6 times N; The total number of second sub-pixels in the display substrate is N, with M second sub-pixels being shared sub-pixels and the remaining second sub-pixels being privacy-protecting sub-pixels.
3. The display substrate according to claim 2, wherein, Each of the aforementioned third sub-pixels is a shared sub-pixel.
4. The display substrate according to claim 3, wherein, At least one third sub-pixel has a first pixel group and a second pixel group on opposite sides along the column direction. Both the first pixel group and the second pixel group include a first sub-pixel and a second sub-pixel arranged along the row direction. The first sub-pixel and the second sub-pixel in the first pixel group are shared sub-pixels, and the first sub-pixel and the second sub-pixel in the second pixel group are privacy-protecting sub-pixels.
5. The display substrate according to claim 4, wherein, A first pixel group and a second pixel group are provided between two adjacent third sub-pixels in the same row and between two adjacent third sub-pixels in the same column.
6. The display substrate according to claim 4, wherein, The light-transmitting ports corresponding to each of the shared sub-pixels are interconnected to form a first connection port, and the light-shielding layer is divided into multiple light-shielding parts spaced apart by the first connection port.
7. The display substrate according to claim 2, wherein, The third sub-pixel is surrounded by a third pixel group and a fourth pixel group. The third pixel group and the third sub-pixel are arranged along a first direction, and the fourth pixel group and the third sub-pixel are arranged along a second direction. Both the first direction and the second direction intersect the row direction and the column direction. Both the third pixel group and the fourth pixel group include the first sub-pixel and the second sub-pixel, and the first sub-pixel and the second sub-pixel in the third pixel group are shared sub-pixels, while the first sub-pixel and the second sub-pixel in the fourth pixel group are privacy-protecting sub-pixels.
8. The display substrate according to claim 7, wherein, The third sub-pixels arranged along the first direction and the light-transmitting openings corresponding to the third pixel group are interconnected to form a second connection port.
9. The display substrate according to claim 8, wherein, The second connection includes a first edge and a second edge arranged along the second direction, at least one of the first edge and the second edge being a straight edge extending along the first direction.
10. The display substrate according to claim 2, wherein, In two adjacent rows of third sub-pixels, each of the third sub-pixels in one row is a privacy protection sub-pixel, and each of the third sub-pixels in the other row is a shared sub-pixel.
11. The display substrate according to claim 10, wherein, At least one third sub-pixel is surrounded by a plurality of first sub-pixels and a plurality of second sub-pixels, which are divided into a fifth pixel group and a sixth pixel group. The fifth pixel group and the sixth pixel group are arranged along the column direction and each includes at least two first sub-pixels and at least two second sub-pixels. The first sub-pixels and the second sub-pixels in the fifth sub-pixel are shared sub-pixels, and the first sub-pixels and the second sub-pixels in the sixth pixel group are privacy-protecting sub-pixels.
12. The display substrate according to claim 11, wherein, The light-transmitting openings corresponding to the fifth pixel group arranged along the row direction are connected.
13. The display substrate according to claim 2, wherein, In two adjacent columns of the third sub-pixel, a first pixel group arranged along the column direction is provided around the third sub-pixel in one column, and a second pixel group arranged along the column direction is provided around the third sub-pixel in the other column. Both the first pixel group and the second pixel group include a first sub-pixel and a second sub-pixel that are adjacent to the third sub-pixel and arranged along the row direction. The first sub-pixel, the second sub-pixel in the first pixel group, and the third sub-pixel arranged in the column direction with the first pixel group are all shared sub-pixels; the first sub-pixel and the second sub-pixel in the second pixel group, and the third sub-pixel arranged in the column direction with the second pixel group are all privacy-protecting sub-pixels.
14. The display substrate according to claim 13, wherein, The light-transmitting ports corresponding to the shared sub-pixels arranged along the column direction are connected to form a third connection port.
15. The display substrate according to claim 14, wherein, The third connection has a first direction and a second edge disposed opposite to each other in the row direction, wherein at least one of the first edge and the second edge is a straight edge.
16. The display substrate according to any one of claims 1 to 15, wherein, The display substrate further includes a polarizer layer, which is located on the side of the light-shielding layer away from the substrate; Alternatively, the display substrate may further include a color filter layer, which includes a first filter portion, a second filter portion, and a third filter portion, wherein the first filter portion is located in the first sub-pixel, the second filter portion is located in the second sub-pixel, and the third filter portion is located in the third sub-pixel.
17. A display device, wherein, The display substrate includes any one of claims 1 to 16.