Display panel and display device

Abstract

The present invention discloses a display panel and a display device, which relate to the field of display technology, so as to reduce the interference of crosstalk light in the related technology and reduce the risk of image color display error. The display panel includes a substrate, a plurality of pixels, a color filter and a plurality of first shading parts, the color filter is arranged on the side of the plurality of pixels away from the substrate; each sub-pixel corresponds to a filter part of the color film; the axis of the sub-pixel in the edge display area along the thickness direction is closer to the axis of the substrate in the thickness direction than the axis of the corresponding filter part in the thickness direction; a plurality of first shading parts are arranged in the edge display area and are located on the side of the color film away from the substrate; each first shading part corresponds to a sub-pixel and a filter part in the edge display area, and the first shading part at least covers the edge area of ​​the first part of the corresponding filter part; the first part of the filter part is the part of the filter part away from the axis of the substrate in the thickness direction. The present invention is used to manufacture a display device.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Micro Organic Light Emitting Diode (Micro OLED) display panels are miniature display panels that use mono-silicon integrated circuits as the driving backplane and top-emitting OLED devices as the light source. They have advantages such as small size, light weight, high contrast, fast response speed and low power consumption, and are expected to be used in next-generation mobile display terminal devices.

[0003] In the fields of Virtual Reality (VR) and Augmented Reality (AR), the exit angle of the main light emitted from different locations on a display panel varies. Generally, the exit angle of the main light emitted from the display panel gradually increases from the center to the edge, meaning the main light emitted by the display panel tends to diverge outwards. For example, the exit angle of the main light emitted from the central area of ​​the display panel is typically 0°, while the exit angle of the main light emitted from the edge area of ​​the display panel may be 30°.

[0004] In related technologies, the exit angle of the main ray is adjusted by the relative offset between the micro lens and the organic light-emitting layer (EL). The color filter moves with the lens, and its offset is consistent with the offset of the lens.

[0005] With this configuration, the wide-viewing-angle white light emitted by the EL, after passing through the red filter in the color filter, may enter the lens above the green filter. Since the light exiting from above the green filter should be "monochromatic green," the light that passes through the red filter but enters the lens above the green filter is crosstalk light. This crosstalk light causes incorrect image color display, resulting in color shift issues during display and affecting image quality. Summary of the Invention

[0006] This disclosure provides a display panel and display device to reduce interference from crosstalk light in related technologies and reduce the risk of image color display errors.

[0007] To achieve the above objectives, the present disclosure adopts the following technical solution:

[0008] On one hand, a display panel is provided. The display panel includes a main display area and an edge display area located around the main display area. The display panel includes a substrate, a plurality of pixels, a color filter, and a plurality of first light-shielding portions. The plurality of pixels are disposed on the substrate, and each pixel includes at least three sub-pixels.

[0009] The color filter is disposed on the side of the plurality of pixels away from the substrate; the color filter includes at least three different color filters, each sub-pixel corresponds to one filter, and the orthographic projection of the sub-pixel on the substrate at least partially overlaps with the orthographic projection of the corresponding filter on the substrate; the axis along the thickness direction of the sub-pixel located in the edge display area is closer to the axis along the thickness direction of the substrate than the axis along the thickness direction of the corresponding filter.

[0010] The plurality of first light-shielding portions are disposed in the edge display area and located on the side of the color filter away from the substrate; each first light-shielding portion corresponds to a sub-pixel and a filter portion located in the edge display area, and the orthographic projection of the first light-shielding portion on the substrate at least covers the orthographic projection of the edge region of the first portion of the corresponding filter portion on the substrate; the first portion of the filter portion is the portion of the filter portion away from the axis along the thickness direction of the substrate.

[0011] In some embodiments, at least one sub-pixel in each of the pixels located in the edge display area is provided with a first light-shielding portion.

[0012] In some embodiments, the color of the filter portion corresponding to the sub-pixel in each pixel that is provided with the first light-shielding portion is the same.

[0013] In some embodiments, each pixel includes at least a red sub-pixel, a blue sub-pixel, and a green sub-pixel, and the red sub-pixel in each pixel located in the edge display area is provided with a first light-shielding portion.

[0014] In some embodiments, the orthographic projection of the first light-shielding portion on the substrate is generally strip-shaped, and the first light-shielding portion extends along the boundary of the first portion of the corresponding light-filtering portion.

[0015] In some embodiments, the orthographic projection of the filter portion onto the substrate is approximately hexagonal, and the boundary of the first portion of the filter portion includes a first boundary and a second boundary. The first light-shielding portion includes a first light-shielding strip and a second light-shielding strip. The first light-shielding strip and the first boundary extend in approximately the same direction, and the first light-shielding strip covers the edge region where the first boundary is located in the first portion of the corresponding filter portion. The second light-shielding strip and the second boundary extend in approximately the same direction, and the second light-shielding strip covers the edge region where the second boundary is located in the first portion of the corresponding filter portion.

[0016] In some embodiments, the areas of the plurality of first light-shielding portions are approximately equal.

[0017] In some embodiments, the display panel further includes a transition display area located between the main display area and the edge display area. The display panel also includes a plurality of second light-shielding portions disposed in the transition display area and located on the side of the color filter away from the substrate; each second light-shielding portion corresponds to a sub-pixel and a filter located in the transition display area, and the orthographic projection of the second light-shielding portion onto the substrate at least covers the edge region of a first portion of the corresponding filter; the area of ​​the second light-shielding portion is less than or equal to the area of ​​the first light-shielding portion.

[0018] In some embodiments, at least one sub-pixel in each pixel of the transition display area is provided with a second light-shielding portion.

[0019] In some embodiments, the color of the filter portion corresponding to the sub-pixel corresponding to the second light-shielding portion in each pixel is the same. The color of the filter portion corresponding to the sub-pixel corresponding to the second light-shielding portion in each pixel is the same as the color of the filter portion corresponding to the sub-pixel corresponding to the first light-shielding portion in each pixel.

[0020] In some embodiments, the orthographic projection of the second light-shielding portion on the substrate is generally strip-shaped, and the second light-shielding portion extends along the boundary of the first portion of the corresponding light-filtering portion.

[0021] In some embodiments, the orthographic projection of the filter portion onto the substrate is approximately hexagonal, and the boundary of the first portion of the filter portion includes a first boundary and a second boundary. The second light-shielding portion includes a third light-shielding strip and a fourth light-shielding strip. The extension direction of the third light-shielding strip is approximately the same as the extension direction of the first boundary, and the third light-shielding strip covers the edge region where the first boundary of the corresponding first portion of the filter portion is located. The extension direction of the fourth light-shielding strip is approximately the same as the extension direction of the second boundary, and the fourth light-shielding strip covers the edge region where the second boundary of the corresponding first portion of the filter portion is located.

[0022] In some embodiments, the area of ​​the plurality of second light-shielding portions gradually increases in a plane parallel to the substrate, along a direction from the center of the substrate to the boundary of the substrate.

[0023] In some embodiments, the display panel further includes a plurality of lenses disposed on the side of the first light-shielding portion and the second light-shielding portion away from the substrate; each lens corresponds to a filter portion, and the boundary of the orthographic projection of each lens on the substrate approximately coincides with the boundary of the orthographic projection of the corresponding filter portion on the substrate.

[0024] The display panel provided in this embodiment has a first light-shielding portion covering the edge region of a first portion of a light-filtering portion, and the first portion of the light-filtering portion is the part of the light-filtering portion that is away from the axis of the substrate along the thickness direction. In this way, the first light-shielding portion can block light with a wide viewing angle emitted by the corresponding sub-pixel (i.e., light emitted by the sub-pixel along the axis away from the substrate along the thickness direction) from passing through the corresponding light-filtering portion in the color filter and entering above other adjacent light-filtering portions. Therefore, it can reduce the interference caused by the light generated by the sub-pixel corresponding to the first light-shielding portion on the image colors displayed by other adjacent sub-pixels, that is, reduce the interference of crosstalk light in related technologies and reduce the risk of image color display errors.

[0025] On the other hand, a display device is also provided, including the display panel described in any of the above embodiments.

[0026] The beneficial effects of the display device provided in this embodiment are the same as those of the display panel provided in the above-described technical solutions, and will not be repeated here. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0028] Figure 1 This is a structural diagram of a display device according to some embodiments;

[0029] Figure 2 This is a basic structural diagram of a display device according to some embodiments;

[0030] Figure 3A This is a structural diagram of a display panel according to some embodiments;

[0031] Figure 3B This is a structural diagram of a display panel according to some other embodiments;

[0032] Figure 4 This is a cross-sectional view of a display panel according to some embodiments;

[0033] Figure 5 This is a top view of a display panel according to some embodiments;

[0034] Figure 6 A cross-sectional view of a display panel according to some other embodiments;

[0035] Figure 7 This is a partial enlarged view of the main display area of ​​a display panel according to some embodiments;

[0036] Figure 8 This is a partial enlarged view of the edge display area of ​​a display panel according to some embodiments;

[0037] Figure 9 This is a partial enlarged view of the transition display area of ​​a display panel according to some embodiments;

[0038] Figure 10 This is a light path diagram of a display panel according to some embodiments. Detailed Implementation

[0039] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0040] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "some embodiments," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0041] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0042] In describing some embodiments, the term "connection" and its derivative expressions may be used. For example, the term "connection" may be used in describing some embodiments to indicate that two or more components are in direct physical or electrical contact with each other.

[0043] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0044] As used herein, depending on the context, the term “if” may optionally be interpreted as meaning “when” or “at the time of”.

[0045] Exemplary embodiments are described herein 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. Thus, 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.

[0046] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0047] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0048] like Figure 1 As shown, some embodiments of this disclosure provide a display device 100, which refers to a product with image display functionality. Exemplarily, the display device 100 may be a near-eye display device, such as a helmet-mounted display, augmented reality (AR) glasses, virtual reality (VR) all-in-one device, stereoscopic display mirror, etc.

[0049] like Figure 2 As shown, in some embodiments, the display device 100 includes a display panel 1, a housing 2, a cover glass 3, and other electronic components such as a driving circuit 4. When the display device 100 is a liquid crystal display device, it also includes a backlight assembly configured to provide light necessary for displaying the image to the display panel 1. Figure 2 The backlight component is not shown in the image.

[0050] The display panel 1 can be a liquid crystal display (LCD), an electroluminescent display panel, or other types of display panels. The electroluminescent display device can be an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), a micro LED (including mini LED or micro LED), or a micro OLED (including mini OLED or micro OLED), etc.

[0051] See Figure 3A and Figure 3B The display panel 1 includes a display substrate 10 and a color filter 20.

[0052] The display substrate 10 includes multiple pixels P, each pixel P includes multiple sub-pixels P1, and each sub-pixel P1 can emit light of a certain color, for example, each sub-pixel P1 can emit white light.

[0053] For example, see Figure 3A The display panel 1 is an OLED display panel, and each sub-pixel P1 includes a light-emitting device E. The display panel 1 can emit white light by emitting light from multiple light-emitting devices E.

[0054] like Figure 4As shown, each sub-pixel P1 of the aforementioned display substrate 10 includes a light-emitting device E and a pixel circuit disposed on the substrate 101. The pixel circuit includes multiple thin-film transistors 102. Each thin-film transistor 102 includes an active layer, a source, a drain, and a gate, with the source and drain respectively in contact with the active layer. The light-emitting device E includes an anode 103, a light-emitting functional layer 104, and a cathode 105. The anode 103 is electrically connected to the source or drain of one of the multiple thin-film transistors 102 that serves as a driving transistor. Figure 4 The diagram illustrates the electrical connection between the anode 103 and the source of the driving transistor.

[0055] In some embodiments, such as Figure 4 As shown, the display substrate 10 includes a semiconductor pattern 106, a first gate insulating film 107, a first gate pattern 108, a second gate insulating film 109, a second gate pattern 110, an interlayer insulating film 111, and a source / drain conductive layer 112 stacked sequentially. The first gate pattern 108 includes the gate of a thin-film transistor 102, the source / drain conductive layer 112 includes the source and drain of the thin-film transistor 102, and the semiconductor pattern 106 includes the active layer of the thin-film transistor 111.

[0056] Based on this, the first gate pattern 108 also includes a first capacitor electrode, and the second gate pattern 110 includes a second capacitor electrode. The orthogonal projection of the first capacitor electrode on the substrate Sub at least partially overlaps with the orthogonal projection of the second capacitor electrode on the substrate Sub, thereby forming a storage capacitor for the pixel circuit.

[0057] The display substrate 10 also includes a pixel defining layer 113, which includes multiple opening areas, and a light-emitting device E is disposed in one of the opening areas.

[0058] In some embodiments, the light-emitting functional layer 104 includes only the light-emitting layer. In other embodiments, in addition to the light-emitting layer, the light-emitting functional layer 104 also includes at least one of an electron transport layer (ETL), an electron injection layer (EIL), a hole transport layer (HTL), and a hole injection layer (HIL).

[0059] In some embodiments, such as Figure 4 As shown, the display substrate 10 also includes a spacer 114, which is disposed on the side of the pixel defining layer 113 near the substrate 101.

[0060] In some embodiments, such as Figure 4As shown, the display substrate 10 also includes a planarization layer 115 disposed between the thin-film transistor 102 and the anode 103.

[0061] In some embodiments, such as Figure 4 As shown, the display substrate 10 also includes a passivation film 116, which is disposed on the side of the source-drain conductive layer 112 away from the substrate 101, and the planarization layer 116 is located on the side of the passivation film 116 away from the substrate 101.

[0062] In some embodiments, such as Figure 4 As shown, the display substrate 10 also includes a protective film 117, which is disposed on the side of the cathode 105 away from the substrate 101.

[0063] For example, see also Figure 3B The display panel 1 is a liquid crystal display panel, which includes an external light source 2. The external light source 2 can be a backlight module in the display device 100. The backlight module is located on the back side of the liquid crystal display panel (i.e., the side away from the display surface of the liquid crystal display panel).

[0064] See also Figure 3A and Figure 3B The color filter 20 is disposed on the light-emitting side of the display substrate 10. The color filter 20 includes a plurality of filter sections 200, and each filter section 200 can transmit a monochromatic light. For example, a filter section 200 can transmit red light, and the filter section 200 that transmits red light can be called a red filter section.

[0065] For example, the plurality of filter sections 200 in the color filter 20 include filter sections for transmitting three monochromatic lights. For example, the three monochromatic lights can be the three primary colors of light: red light, green light, and blue light. Then, the plurality of filter sections 200 in the color filter 20 can include at least one red filter section R, at least one green filter section G, and at least one blue filter section B.

[0066] In the display panel 1, a sub-pixel P1 in the display substrate 10 corresponds to a filter section 200 in the color filter 20. Light emitted from the sub-pixel P1 can illuminate the corresponding filter section 200 to emit monochromatic light of the corresponding color. For example, when white light emitted from the sub-pixel P1 illuminates the corresponding filter section 200, the filter section 200 filters out some colors of the white light, transmitting only one color of light (also called monochromatic light). The color of the monochromatic light transmitted from the filter section 200 is different from the color emitted by the light-emitting device E. In this way, when the color filter 20 includes filter sections 200 with different light-transmitting colors, full-color display of the display panel 1 can be achieved.

[0067] In VR or AR optical systems, the exit angle of the main light emitted by the display panel 1 gradually increases from the center to the edge of the display panel 1, meaning that the main light emitted by the display panel 1 tends to diverge outwards. For example, the exit angle of the main light emitted from the central area of ​​the display panel 1 is generally 0°, while the exit angle of the main light emitted from the edge area of ​​the display panel 1 may be 30°.

[0068] In related technologies, a lens is provided on the side of the color filter away from the display substrate. One light-emitting device or one external light source corresponds to one lens. The emission angle of the main light is adjusted by adjusting the relative offset between the lens and the light-emitting device or external light source. For example, the light-emitting device or external light source is offset relative to the corresponding lens towards the center area of ​​the display panel so that the main light emitted by the display panel tends to diverge outward.

[0069] In this configuration, the color filter moves along with the lens, and its offset matches that of the lens. With this arrangement, wide-viewing-angle white light (white light directed away from the center of the display panel) emitted by the light-emitting device or external light source, after passing through the corresponding filter in the color filter, may enter the lens above an adjacent filter. For example, wide-viewing-angle white light emitted by the light-emitting device or external light source, after passing through the red filter in the color filter, may enter the lens above the green filter.

[0070] Since the light exiting from above the green filter should be "monochromatic green," the light that passes through the red filter but enters the lens above the green filter is crosstalk light. This crosstalk light causes incorrect image color display, resulting in color shift during display and affecting image quality.

[0071] See Figure 5 and Figure 6 This disclosure provides a display panel 1, which can be applied to the display device 100 described above. The display area AA of the display panel 1 includes a main display area A1 and an edge display area A2 located around the main display area. The display panel 1 includes a substrate 101, a plurality of pixels P, a color filter 20, and a plurality of first light-shielding portions 30.

[0072] It should be noted that, for reference Figure 3A The display panel 1 provided in this embodiment may be an electroluminescent display panel; see reference Figure 3B The display panel 1 provided in this embodiment can be a liquid crystal display panel.

[0073] It should be noted that for a pixel P that is partially located in the edge display area A2 and partially located in the main display area A1, if the area of ​​pixel P in the edge display area A2 is 1 / 2 or greater than 1 / 2 of the area of ​​pixel P, then pixel P is considered to be located in the edge display area A2; if the area of ​​pixel P in the main display area A1 is greater than 1 / 2 of the area of ​​pixel P, then pixel P is considered to be located in the main display area A1.

[0074] like Figure 5 and Figure 6 As shown, multiple pixels P are disposed on the substrate 101, and each pixel P includes at least three sub-pixels P1. A color filter 20 is disposed on the side of the multiple pixels P away from the substrate 101; the color filter 20 includes at least three types of filter elements 200 with different colors, and each sub-pixel P1 corresponds to one filter element 200. The orthographic projection of the sub-pixel P1 on the substrate 101 at least partially overlaps with the orthographic projection of the corresponding filter element 200 on the substrate 101, so that the light emitted by the sub-pixel P1 is transmitted through the corresponding filter element 200 to produce monochromatic light of the corresponding color, thereby realizing full-color display of the display panel 1.

[0075] Among them, see Figure 6 The axis L1 along the thickness direction of the sub-pixel P1 located in the edge display area A2 is closer to the axis L3 along the thickness direction of the substrate 101 than the axis L2 along the thickness direction of the corresponding filter 200, so as to facilitate the subsequent adjustment of the emission angle of the main light, thereby meeting the design requirements of VR or AR optical systems.

[0076] It should be noted that when display panel 1 is an OLED display panel, the axis L1 corresponding to sub-pixel P1 can be the light-emitting device E (see...). Figure 5 The axis of the opening in the pixel defining layer 113. When the display panel 1 is a liquid crystal display panel, the axis L1 corresponding to the sub-pixel P1 can be the external light source 2 (see...). Figure 3B The axis of ).

[0077] See Figure 5 and Figure 6 Multiple first light-shielding portions 30 are disposed in the edge display area A2 and located on the side of the color filter 20 away from the substrate 101; each first light-shielding portion 30 corresponds to a sub-pixel P1 and a filter portion 200 located in the edge display area A2, and the orthographic projection of the first light-shielding portion 30 on the substrate 101 at least covers the orthographic projection of the edge region of the first part of the corresponding filter portion 200 on the substrate 101; the first part of the filter portion 200 is the portion of the filter portion 200 away from the axis along the thickness direction of the substrate 101.

[0078] It should be noted that the material of the first light-shielding part 30 may include at least one of resin, elemental metal, alloy, or metal oxide. For example, the material of the first light-shielding part 30 is Cu (copper), Al (aluminum), or Ag (silver).

[0079] As described above, the first light-shielding portion 30 covers the edge region of the first part of the filter portion 200, and the first part of the filter portion 200 is the portion of the filter portion 200 that is away from the axis along the thickness direction of the substrate 101. In this way, the first light-shielding portion 30 can block the light emitted by the corresponding sub-pixel P1 from passing through the corresponding filter portion 200 in the color filter 20 and entering above the adjacent other filter portions 200. Therefore, the interference caused by the light generated by the sub-pixel P1 corresponding to the first light-shielding portion 30 to the image color displayed by the adjacent other sub-pixels P1 can be reduced, that is, the interference of crosstalk light in related technologies is reduced, and the risk of image color display errors is reduced.

[0080] See Figure 5 and Figure 6 In some embodiments, at least one sub-pixel P1 in each pixel P located in the edge display area A1 is provided with a first light-shielding part 30 to ensure that the image color displayed by each pixel P in the edge display area A1 is accurate. It should be understood that the color displayed by each pixel P is determined by the colors of the filter parts corresponding to the three sub-pixels it includes. Therefore, to ensure the image color displayed by each pixel P in the edge display area A1 is accurate, in practical applications, a first light-shielding part 30 can be provided for one or more sub-pixels P1 in each pixel P in the edge display area A1 as needed.

[0081] For example, each sub-pixel P1 in each pixel P in the edge display area A1 is provided with a first light-shielding part 30 to reduce the interference of each sub-pixel P1 in each pixel P on the image color displayed by other adjacent sub-pixels P1, so as to ensure that the image color displayed by each pixel P is accurate.

[0082] In practical applications, generally speaking, the light emitted by the sub-pixel P1 corresponding to the filter section 200 of a certain color in each pixel P has a greater interference with other sub-pixels P1. Therefore, the filter section 200 of a certain color among the multiple filter sections 200 corresponding to each pixel P in the edge display area A2 can be provided with a first light-shielding section 30.

[0083] Based on this, see Figure 5 and Figure 8In some embodiments, the color of the filter portion 200 corresponding to the sub-pixel P1 in each pixel P that is provided with the first light-shielding portion 30 is the same. In this case, the area blocked by the first light-shielding portion 30 in each pixel P located in the edge display area A2 is small, the display brightness of the display panel 1 is large, and the interference of crosstalk light can be effectively reduced.

[0084] For example, each pixel P includes at least a red sub-pixel R, a blue sub-pixel G, and a green sub-pixel B. The red sub-pixel R in each pixel P located in the edge display area A2 is provided with a first light-shielding part 30, which can effectively reduce the reddish phenomenon of the image on the display panel 1 at a large viewing angle.

[0085] It should be noted that the color of the filter section 30 corresponding to the red sub-pixel R is red, that is, the red filter section 301, which only allows red light to pass through; the color of the filter section 30 corresponding to the blue sub-pixel G is blue, that is, the blue filter section 302, which only allows blue light to pass through; the color of the filter section corresponding to the green sub-pixel B is green, that is, the green filter section 303, which only allows green light to pass through.

[0086] In the above embodiments, the shape of the first light-shielding part 30 is adjustable, and its specific form can be designed as needed.

[0087] In some embodiments, the orthographic projection of the first light-shielding portion 30 on the substrate 101 is approximately strip-shaped, and the first light-shielding portion 30 extends along the boundary of the first portion of the corresponding filter portion 200. This allows for the blocking of a longer boundary with a smaller light-shielding area, thereby effectively reducing crosstalk interference and lowering the risk of image color display errors while minimizing the loss of display brightness of the display panel 1.

[0088] See Figure 7 For example, the orthographic projection of the filter element 200 onto the substrate 101 is approximately hexagonal. Therefore, the three different colored filters can form a Delta distribution. In a Delta distribution, the line connecting the geometric centroids of the closest pairs of red filter element 301, blue filter element 302, and green filter element 303 forms a triangle. In a Delta distribution, every six filters constitute a minimum repeating unit. A minimum repeating unit is arranged repeatedly in both the row and column directions, forming a Delta distribution.

[0089] Based on this, see Figure 7 and Figure 8The boundary of the first portion of the filter section 200 includes a first boundary B1 and a second boundary B2. The first light-shielding section 30 includes a first light-shielding strip 310 and a second light-shielding strip 320. The first light-shielding strip 310 and the first boundary B1 extend in approximately the same direction, and the first light-shielding strip 310 covers the edge region where the first boundary B1 is located in the first portion of the corresponding filter section 200; the second light-shielding strip 320 and the second boundary B2 extend in approximately the same direction, and the second light-shielding strip 320 covers the edge region where the second boundary B2 is located in the first portion of the corresponding filter section 20.

[0090] In the above embodiments, the size of the first light-shielding part 30 is adjustable, and its specific size can be designed according to its shape.

[0091] In some embodiments, the areas of the plurality of first light-shielding portions 30 are approximately equal. For example, the percentage of the area of ​​the first light-shielding portion 30 to the area of ​​the corresponding light-filtering portion 200 is less than or equal to 20%, to ensure that the light-filtering portion 200 can transmit sufficient light and reduce the loss of display brightness of the display panel. For instance, the orthographic projection of the first light-shielding portion 30 onto the substrate 101 is approximately strip-shaped, and the average width of the first light-shielding portion 30 is less than or equal to 1 micrometer.

[0092] like Figure 5 and Figure 6 As shown, the display area AA also includes a transition display area A3, which is located between the main display area A1 and the edge display area A2.

[0093] It should be noted that for a pixel P that is partially located in the edge display area A2 and partially located in the transition display area A3, if the area of ​​pixel P in the edge display area A2 is 1 / 2 or greater than 1 / 2 of the area of ​​pixel P, then pixel P is considered to be located in the edge display area A2; if the area of ​​pixel P in the transition display area A3 is greater than 1 / 2 of the area of ​​pixel P, then pixel P is considered to be located in the transition display area A3.

[0094] Similarly, for a pixel P that is partially located in the main display area A1 and partially located in the transition display area A3, if the area of ​​pixel P in the main display area A1 is 1 / 2 or greater than 1 / 2 of the area of ​​pixel P, then pixel P is considered to be located in the main display area A1; if the area of ​​pixel P in the transition display area A3 is greater than 1 / 2 of the area of ​​pixel P, then pixel P is considered to be located in the transition display area A3.

[0095] Based on this, see Figure 5 and Figure 6 The display panel 1 also includes a plurality of second light-shielding portions 40, which are disposed in the transition display area A3 and located on the side of the color filter 20 away from the substrate 101.

[0096] It should be noted that the material of the second light-shielding part 40 can be the same as the material of the first light-shielding part 30. For example, the material of the second light-shielding part 40 includes at least one of resin, elemental metal, alloy, or metal oxide. For instance, the material of the second light-shielding part 40 is Cu (copper), Al (aluminum), or Ag (silver).

[0097] Each of the second light-shielding portions 40 corresponds to a sub-pixel P1 and a filter portion 200 located in the transition display area A3, and the orthographic projection of the second light-shielding portion 40 on the substrate 101 at least covers the edge region of the first part of the corresponding filter portion 200.

[0098] It should be understood that the second light-shielding portion 40 covers the edge region of the first portion of the filter portion 200, and the first portion of the filter portion 200 is the portion of the filter portion 200 that is away from the axis along the thickness direction of the substrate 101. In this way, the second light-shielding portion 40 can block the light emitted by the corresponding sub-pixel P1 from passing through the corresponding filter portion 200 in the color filter 20 and entering above the other adjacent filter portions 200. Therefore, the interference caused by the light generated by the sub-pixel P1 corresponding to the second light-shielding portion 40 to the image color displayed by the other adjacent sub-pixels P1 can be reduced, the interference of crosstalk light in related technologies can be reduced, and the risk of image color display errors can be reduced.

[0099] In this configuration, the area of ​​the second light-shielding part 40 is less than or equal to the area of ​​the first light-shielding part 30, meaning that the area of ​​the sub-pixel P1 corresponding to the second light-shielding part 40 in the transition display area A3 is relatively small. With this configuration, since the transition display area A3 is located between the main display area A1 and the edge display area A2, the abrupt grayscale changes between the sub-pixels of the main display area A1 and the edge display area A2 can be reduced, thereby avoiding significant brightness changes between the display area A1 and the edge display area A2.

[0100] Furthermore, in a plane parallel to the substrate 101, along a direction from the center of the substrate 101 (i.e., the axis L3 along the thickness direction) towards the boundary of the substrate 101, the area of ​​the plurality of second light-shielding portions 40 gradually increases. Thus, from the main display area A1 towards the edge display area A2, the brightness of the transition display area A3 gradually decreases to avoid significant brightness changes between the transition display area A3 and the display area A1, and between the transition display area A3 and the edge display area A2.

[0101] See Figure 5 and Figure 6In some embodiments, at least one sub-pixel P1 in each pixel P located in the transition display area A3 is provided with a second light-shielding part 40 to ensure that the image color displayed by each pixel P in the transition display area A3 is accurate. It should be understood that the color displayed by each pixel P is determined by the colors of the filter parts corresponding to the three sub-pixels it includes. Therefore, to ensure the image color displayed by each pixel P in the transition display area A3 is accurate, in practical applications, a second light-shielding part 40 can be provided for one or more sub-pixels P1 in each pixel P in the transition display area A3 as needed.

[0102] For example, each sub-pixel P1 in each pixel P in the transition display area A3 is provided with a second light-shielding part 40 to reduce the interference of each sub-pixel P1 in each pixel P on the image color displayed by other adjacent sub-pixels P1, and to ensure that the image color displayed by each pixel P is accurate.

[0103] Similar to the first light-shielding part 30, the light emitted by the sub-pixel P1 corresponding to the filter part 200 of a certain color in each pixel P has a large interference with other sub-pixels P1. Therefore, the filter part 200 of a certain color among the multiple filter parts 200 corresponding to each pixel P in the transition display area A3 can be provided with a second light-shielding part 40.

[0104] Based on this, see Figure 5 and Figure 9 In some embodiments, the color of the filter 200 corresponding to the sub-pixel P1 in each pixel P that is provided with the second light-shielding part 40 is the same. Furthermore, the color of the filter corresponding to the sub-pixel P1 in each pixel P that is provided with the second light-shielding part 40 is the same as the color of the filter corresponding to the sub-pixel P1 in each pixel P that is provided with the first light-shielding part 30. In this case, the area blocked by the second light-shielding part 40 in each pixel P located in the transition display area A3 is small, the display brightness of the display panel 1 is high, and the interference of crosstalk light can be effectively reduced.

[0105] For example, see Figure 9 Each pixel P includes at least a red sub-pixel R, a blue sub-pixel G, and a green sub-pixel B. The red sub-pixel R in each pixel P located in the transition display area A3 is provided with a second light-shielding part 40, which can effectively reduce the reddish phenomenon of the image on the display panel 1 at a wide viewing angle.

[0106] In the above embodiments, the shape of the second light-shielding part 40 is adjustable, and its specific form can be designed as needed.

[0107] In some embodiments, the orthographic projection of the second light-shielding portion 40 on the substrate 101 is approximately strip-shaped, and the second light-shielding portion 40 extends along the boundary of the first portion of the corresponding filter portion 200. With a small light-shielding area, it blocks a long boundary, thereby effectively reducing crosstalk light interference and lowering the risk of image color display errors while ensuring minimal loss of display brightness of the display panel 1.

[0108] like Figure 7 and Figure 9 As shown, exemplarily, the orthographic projection of the filter portion 200 onto the substrate 101 is approximately hexagonal. Therefore, the three different colored filters can form a delta distribution. The boundary of the first portion of the filter portion 200 includes a first boundary B1 and a second boundary B2. The second light-shielding portion 40 includes a third light-shielding strip 410 and a fourth light-shielding strip 420. The extension direction of the third light-shielding strip 410 is approximately the same as the extension direction of the first boundary B1, and the third light-shielding strip 410 covers the edge region where the first boundary B1 is located in the first portion of the corresponding filter portion 200; the extension direction of the fourth light-shielding strip 420 is approximately the same as the extension direction of the second boundary B2, and the fourth light-shielding strip 420 covers the edge region where the second boundary B2 is located in the first portion of the corresponding filter portion 200.

[0109] In the above embodiments, the size of the second light-shielding part 40 is adjustable, and its specific size can be designed according to its shape.

[0110] In some embodiments, the area of ​​the second light-shielding portion 40 located in the transition display area A3 can be designed according to the offset between the light-emitting device or external light source and the corresponding filter portion 200. Wherein, when the orthographic projection of the second light-shielding portion 30 on the substrate 101 is approximately strip-shaped, the average width of the second light-shielding portion 30 is 0.2 micrometers to 1 micrometer.

[0111] See Figure 6 and Figure 10 In some embodiments, the display panel 1 further includes a plurality of lenses 50, which are disposed on the side of the first light-shielding part 30 and the second light-shielding part 40 away from the substrate 101, to adjust the exit angle of the main light beam, thereby meeting the design requirements of VR or AR optical systems. Each lens 50 corresponds to a filter part 200, and the boundary of the orthographic projection of each lens 50 onto the substrate 101 approximately coincides with the boundary of the orthographic projection of the corresponding filter part 50 onto the substrate, to ensure that as much light as possible projected by each filter part 50 enters the corresponding lens 50 and exits at a preset angle after being deflected by the lens 50.

[0112] In the above embodiment, lens 50 is a convex lens. For example, lens 50 is hemispherical in shape. Lens 50 can be formed using a baking process.

[0113] See Figure 6 In some embodiments, a flattening layer 60 is provided between the lens 50 and the first light-shielding part 30, the second light-shielding part 40 and the color filter 20, so as to make the height of each lens 50 more uniform.

[0114] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display panel, characterized in that: It includes a main display area and an edge display area located around the main display area; The display panel comprises: substrate; A plurality of pixels are disposed on the substrate; each of the pixels comprises at least three sub-pixels; A color filter is arranged on a side of the plurality of pixels away from the substrate; the color filter comprises at least three filter parts of different colors, each sub-pixel corresponds to a filter part, and the orthographic projection of the sub-pixel on the substrate overlaps with the orthographic projection of the corresponding filter part on the substrate at least partially; the axis of the sub-pixel in the edge display area along the thickness direction is closer to the axis of the substrate along the thickness direction than the axis of the corresponding filter part along the thickness direction; A plurality of first shading portions are arranged in the edge display area and located on a side of the color film away from the substrate; each first shading portion corresponds to a sub-pixel and a filter portion located in the edge display area, and the orthographic projection of the first shading portion on the substrate at least covers the orthographic projection of the edge area of ​​the first part of the corresponding filter portion on the substrate; the first part of the filter portion is a part of the filter portion away from the axis of the substrate along the thickness direction.

2. The display panel according to claim 1, characterized in that: At least one sub-pixel in each of the pixels located in the edge display area is correspondingly provided with a first light shielding portion.

3. The display panel according to claim 2, characterized in that: The color of the filter part corresponding to the sub-pixel corresponding to the first light shielding part in each pixel is the same.

4. The display panel according to claim 1, characterized in that: Each of the pixels at least includes a red sub-pixel, a blue sub-pixel and a green sub-pixel, and a first light shielding portion is correspondingly provided for the red sub-pixel in each of the pixels located in the edge display area.

5. The display panel according to claim 1, characterized in that: The orthographic projection of the first light shielding portion on the substrate is a strip shape, and the first light shielding portion extends along the boundary of the first part of the corresponding filter portion.

6. The display panel according to claim 1, characterized in that: The orthographic projection of the filter portion on the substrate is a hexagon, and the boundary of the first part of the filter portion includes a first boundary and a second boundary; The first shading portion includes a first shading strip and a second shading strip; the first shading strip and the first boundary have the same extension direction, and the first shading strip covers the edge area where the first boundary is located in the first part of the corresponding filter portion; the second shading strip and the second boundary have the same extension direction, and the second shading strip covers the edge area where the second boundary is located in the first part of the corresponding filter portion.

7. The display panel according to claim 6, characterized in that: The areas of the plurality of first light shielding portions are equal.

8. The display panel according to any one of claims 1 to 7, characterized in that: Also includes a transition display area between the main display area and the edge display area; The display panel further includes: A plurality of second shading portions are arranged in the transition display area and located on a side of the color film away from the substrate; each second shading portion corresponds to a sub-pixel and a filter portion located in the transition display area, and the orthographic projection of the second shading portion on the substrate at least covers an edge area of ​​a first part of the corresponding filter portion; an area of ​​the second shading portion is less than or equal to an area of ​​the first shading portion.

9. The display panel according to claim 8, characterized in that: At least one sub-pixel in each pixel located in the transition display area is correspondingly provided with a second light shielding portion.

10. The display panel according to claim 9, characterized in that: The color of the filter part corresponding to the sub-pixel corresponding to the second light shielding part in each pixel is the same; The color of the filter portion corresponding to the sub-pixel corresponding to the second light shielding portion in each of the pixels is the same as the color of the filter portion corresponding to the sub-pixel corresponding to the first light shielding portion in each of the pixels.

11. The display panel according to claim 8, characterized in that: The orthographic projection of the second light shielding portion on the substrate is a strip shape, and the second light shielding portion extends along the boundary of the first part of the corresponding filter portion.

12. The display panel according to claim 11, characterized in that: The orthographic projection of the filter portion on the substrate is a hexagon, and the boundary of the first part of the filter portion includes a first boundary and a second boundary; The second shading portion includes a third shading strip and a fourth shading strip; the extension direction of the third shading strip is the same as the extension direction of the first boundary, and the third shading strip covers the edge area of ​​the first part of the corresponding filter portion where the first boundary is located; the extension direction of the fourth shading strip is the same as the extension direction of the second boundary, and the fourth shading strip covers the edge area of ​​the first part of the corresponding filter portion where the second boundary is located.

13. The display panel according to claim 8, characterized in that: In a plane parallel to the substrate, areas of the plurality of second light shielding portions gradually increase along a direction from the center of the substrate to the boundary of the substrate.

14. The display panel according to claim 8, characterized in that: Also includes: A plurality of lenses are arranged on a side of the first shading portion and the second shading portion away from the substrate; each lens corresponds to a filter portion, and a boundary of an orthographic projection of each lens on the substrate coincides with a boundary of an orthographic projection of a corresponding filter portion on the substrate.

15. A display device, characterized in that: The invention comprises the display panel according to any one of claims 1 to 14.

Images