Display panel and display device

Abstract

The invention discloses a display panel and a display device, relates to the technical field of display, and aims to reduce interference of crosstalk light in related technologies and reduce the risk of image color display errors. The display panel comprises a substrate, a plurality of pixels, a color film and a plurality of first shading parts, and the color film is arranged on the sides, away from the substrate, of the pixels; each sub-pixel corresponds to one light filtering part of the color film; the light filtering parts corresponding to the sub-pixels deviate towards a first extension direction from the main display area to the edge display area relative to the sub-pixels; the plurality of first shading parts are arranged in the edge display area; each first shading part corresponds to one sub-pixel and one filtering part in the edge display area, and the first shading part at least covers the edge area of the first part of the corresponding filtering part; the first part of the light filtering part is the part, away from the main display area, of the light filtering part. The manufacturing method is used for manufacturing the display device.

Description

[0001] This application is a divisional application filed for a patent application with an application date of July 27, 2021, application number 202110849563.8, and invention name “Display panel and display device”. Technical Field

[0002] The present disclosure relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0003] Micro Organic Light Emitting Diode (Micro OLED) display panel is a micro display panel that uses a mono-silicon integrated circuit as a driving backplane and a top-emitting OLED device as a light source. It has the advantages of small size, light weight, high contrast, fast response speed and low power consumption. It is expected to be used in the next generation of mobile display terminal devices.

[0004] In the field of virtual reality (VR) or augmented reality (AR), the emission angles of the main light emitted from different positions of the display panel are different. Generally speaking, the emission angle of the main light emitted by the display panel gradually increases from the center of the display panel to the edge of the display panel, that is, the main light emitted by the display panel tends to diverge outward. For example, the emission angle of the main light emitted from the center area of ​​the display panel is generally 0°, and the emission angle of the main light emitted from the edge area of ​​the display panel may be 30°.

[0005] In the related art, the adjustment of the exit angle of the main light is achieved by the relative offset of a lens (micro lens) and an organic light emitting layer (Emitting Light, EL for short). The color film moves with the lens, and its offset is consistent with the offset of the lens.

[0006] In this way, the wide-angle white light emitted by the EL may enter the lens above the green filter after passing through the red filter in the color film. 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 part of the crosstalk light causes the image color to be displayed incorrectly, causing the display panel to have color deviation during the display process, affecting the quality of the image. Summary of the invention

[0007] The present disclosure provides a display panel and a display device to reduce the interference of crosstalk light in the related art and reduce the risk of image color display errors.

[0008] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0009] In one aspect, 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 arranged on the substrate, and each of the pixels includes at least three sub-pixels.

[0010] The color filter is arranged on a side of the multiple pixels away from the substrate; the color filter includes at least three filter parts with different colors, each sub-pixel corresponds to a filter part, and the orthographic projection of the sub-pixel on the substrate at least partially overlaps with the orthographic projection of the corresponding filter part on the substrate; the filter part corresponding to the sub-pixel is offset relative to the sub-pixel in a first extension direction from the main display area to the edge display area.

[0011] The multiple first shading portions are arranged in the edge display area; 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 covers the orthographic projection of the edge area of ​​the corresponding first part of the filter portion on the substrate; the first part of the filter portion is the part of the filter portion away from the main display area.

[0012] In some embodiments, 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.

[0013] In some embodiments, the color of the filter portion corresponding to the sub-pixel having the first light shielding portion in each pixel is the same.

[0014] In some embodiments, each of the pixels includes at least 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.

[0015] In some embodiments, the area percentage of the first light shielding portion and the corresponding light filtering portion is less than or equal to 20%.

[0016] In some embodiments, an average width of the first light shielding portion is less than or equal to 1 micrometer.

[0017] In some embodiments, a material of the first light shielding portion includes at least one of a resin, a metal element, an alloy, or a metal oxide.

[0018] In some embodiments, an orthographic projection of the first light shielding portion on the substrate is a strip shape, and the first light shielding portion extends along a boundary of the first portion of the corresponding filter portion.

[0019] In some embodiments, the orthographic projection of the filter section on the substrate is a hexagon, and the boundary of the first part of the filter section includes a first boundary and a second boundary. The first shading section includes a first shading bar and a second shading bar. The first shading bar and the first boundary extend in the same direction, and the first shading bar covers the edge area of ​​the first part of the corresponding filter section where the first boundary is located. The second shading bar and the second boundary extend in the same direction, and the second shading bar covers the edge area of ​​the first part of the corresponding filter section where the second boundary is located.

[0020] In some embodiments, the areas of the plurality of first light shielding portions are equal.

[0021] In some embodiments, the display panel further includes a transitional display area between the main display area and the edge display area. The display panel further includes a plurality of second light shielding portions, which are arranged in the transitional display area and located on a side of the color filter away from the substrate; each second light shielding portion corresponds to a sub-pixel and a filter portion located in the transitional display area, and the orthographic projection of the second light shielding portion on the substrate at least covers an edge area of ​​a first portion of the corresponding filter portion; the area of ​​the second light shielding portion is less than or equal to the area of ​​the first light shielding portion.

[0022] In some embodiments, the color of the filter portion corresponding to the sub-pixel provided with the second light shielding portion is the same as the color of the filter portion corresponding to the sub-pixel provided with the first light shielding portion.

[0023] In some embodiments, at least one sub-pixel in each pixel located in the transition display area is correspondingly provided with a second light shielding portion.

[0024] In some embodiments, the color of the filter portion corresponding to the sub-pixel having the second light shielding portion in each pixel is the same.

[0025] In some embodiments, a material of the second light shielding portion is the same as a material of the first light shielding portion.

[0026] In some embodiments, the orthographic projection of the second light shielding portion on the substrate is a stripe, and the second light shielding portion extends along a boundary of the first portion of the corresponding filter portion.

[0027] In some embodiments, the orthographic projection of the filter section on the substrate is a hexagon, and the boundary of the first part of the filter section includes a first boundary and a second boundary. The second light-shielding section includes a third light-shielding strip and a fourth light-shielding strip. The extension direction of the third light-shielding strip is the same as the extension direction of the first boundary, and the third light-shielding strip covers the edge area of ​​the first part of the corresponding filter section where the first boundary is located. The extension direction of the fourth light-shielding strip is the same as the extension direction of the second boundary, and the fourth light-shielding strip covers the edge area of ​​the first part of the corresponding filter section where the second boundary is located.

[0028] In some embodiments, in a plane parallel to the substrate, along a direction from the center of the substrate to the boundary of the substrate, areas of the plurality of second light shielding portions gradually increase.

[0029] In some embodiments, the display panel also includes a plurality of lenses, which are arranged on a 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 a boundary of the orthographic projection of each lens on the substrate coincides with a boundary of the orthographic projection of the corresponding filter portion on the substrate.

[0030] In the display panel provided by the embodiment of the present disclosure, the first light shielding portion covers the edge area of ​​the first part of the filter portion, and the first part of the filter portion is the portion of the filter portion that is away from the axis of the substrate along the thickness direction. In this way, the first light shielding portion can block the wide-angle light emitted by the corresponding sub-pixel (that is, the light emitted by the sub-pixel toward the axis away from the substrate along the thickness direction) from passing through the corresponding filter portion in the color film and entering the top of other adjacent filter portions. Therefore, the interference caused by the light generated by the sub-pixel corresponding to the first light shielding portion to the image color displayed by the corresponding other adjacent sub-pixels can be reduced, that is, the interference of crosstalk light in the related art is reduced, and the risk of image color display errors is reduced.

[0031] On the other hand, a display device is further provided, comprising the display panel described in any one of the above embodiments.

[0032] The beneficial effects of the display device provided by the embodiment of the present disclosure are the same as the beneficial effects of the display panel provided by the above technical solution, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0034] Figure 1 is a structural diagram of a display device according to some embodiments;

[0035] Figure 2 is a basic structural diagram of a display device according to some embodiments;

[0036] Figure 3A is a structural diagram of a display panel according to some embodiments;

[0037] Figure 3B is a structural diagram of a display panel according to some other embodiments;

[0038] Figure 4 is a cross-sectional view of a display panel according to some embodiments;

[0039] Figure 5 is a top view of a display panel according to some embodiments;

[0040] Figure 6 is a cross-sectional view of a display panel according to some other embodiments;

[0041] Figure 7 is a partial enlarged view of a main display area of ​​a display panel according to some embodiments;

[0042] Figure 8 is a partial enlarged view of an edge display area of ​​a display panel according to some embodiments;

[0043] Fig. 9 is a partial enlarged view of a transition display area of ​​a display panel according to some embodiments;

[0044] Fig.10 is an outgoing light path diagram of a display panel according to some embodiments. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0046] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open, inclusive, that is, "including, but not limited to". In the description of the specification, the terms "some embodiments", "example" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0047] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0048] When describing some embodiments, the expression "connected" and its derivatives may be used. For example, when describing some embodiments, the term "connected" may be used to indicate that two or more components have direct physical or electrical contact with each other.

[0049] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0050] As used herein, the term "if" is optionally interpreted to mean "when" or "upon", depending on the context.

[0051] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of layers and regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are contemplated. Therefore, exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but rather include deviations in shape due to, for example, manufacturing.

[0052] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0053] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors 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, wherein the acceptable deviation range of approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality may be, for example, the difference between the two equalities is less than or equal to 5% of either one.

[0054] like Figure 1 As shown, some embodiments of the present disclosure provide a display device 100, which refers to a product with an image display function. Exemplarily, the display device 100 may be a near-eye display device, such as a helmet display, augmented reality (AR) glasses, virtual reality (VR) all-in-one machine, stereoscopic display mirror, etc.

[0055] 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. In the case where the display device 100 is a liquid crystal display device, the display device 100 also includes a backlight assembly, which is configured to provide the display panel 1 with light required for displaying images. Figure 2 The backlight assembly is not shown.

[0056] The display panel 1 may be a liquid crystal display panel (LCD); or an electroluminescent display panel or other types of display panels. The electroluminescent display device may be an organic light emitting diode display panel (OLED), a quantum dot light emitting diode display panel (QLED), a micro LED display panel (including mini LED or micro LED), a micro OLED display panel (including mini OLED or micro OLED), etc.

[0057] See also Figure 3A and Figure 3B The display panel 1 includes a display substrate 10 and a color film 20 .

[0058] The display substrate 10 includes a plurality of pixels P, each pixel P includes a plurality of sub-pixels P1, and each sub-pixel P1 can emit light of one color, for example, each sub-pixel P1 can emit white light.

[0059] For example, see Figure 3A The display panel 1 is an OLED display panel, and one sub-pixel P1 includes one light-emitting device E. The display panel 1 can emit white light through the light emission of multiple light-emitting devices E.

[0060] like Figure 4 As shown, each sub-pixel P1 of the display substrate 10 includes a light-emitting device E and a pixel circuit disposed on a substrate 101, and the pixel circuit includes a plurality of thin film transistors 102. The thin film transistor 102 includes an active layer, a source electrode, a drain electrode and a gate electrode, and the source electrode and the drain electrode are in contact with the active layer, respectively. The light-emitting device E includes an anode 103, a light-emitting functional layer 104 and a cathode 105, and the anode 103 is electrically connected to the source electrode or the drain electrode of the thin film transistor 102 serving as a driving transistor among the plurality of thin film transistors 102, Figure 4 In the figure, the anode 103 and the source of the driving transistor are electrically connected to each other for illustration.

[0061] In some embodiments, 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 which are stacked in sequence, the first gate pattern 108 includes a gate of the thin film transistor 102, the source-drain conductive layer 112 includes a source and a drain of the thin film transistor 102, and the semiconductor pattern 106 includes an active layer of the thin film transistor 102.

[0062] On this basis, the first gate pattern 108 also includes a first capacitor electrode, and the second gate pattern 110 includes a second capacitor electrode. The positive projection of the first capacitor electrode on the substrate Sub at least partially overlaps with the positive projection of the second capacitor electrode on the substrate Sub, thereby forming a storage capacitor of the pixel circuit.

[0063] The display substrate 10 further includes a pixel defining layer 113 . The pixel defining layer 113 includes a plurality of opening regions. One light emitting device E is disposed in one opening region.

[0064] In some embodiments, the light-emitting functional layer 104 includes only a light-emitting layer. In other embodiments, the light-emitting functional layer 104 includes, in addition to the light-emitting layer, 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).

[0065] In some embodiments, Figure 4 As shown, the display substrate 10 further includes a spacer 114 , and the spacer 114 is disposed on a side of the pixel defining layer 113 close to the substrate 101 .

[0066] In some embodiments, Figure 4 As shown, the display substrate 10 further includes a planar layer 115 disposed between the thin film transistor 102 and the anode 103 .

[0067] In some embodiments, Figure 4 As shown, the display substrate 10 further includes a passivation film 116 , which is disposed on a side of the source / drain conductive layer 112 away from the substrate 101 , and the planarization layer 115 is located on a side of the passivation film 116 away from the substrate 101 .

[0068] In some embodiments, Figure 4 As shown, the display substrate 10 further includes a protective film 117 , and the protective film 117 is disposed on a side of the cathode 105 facing away from the substrate 101 .

[0069] Also illustratively, see Figure 3B The display panel 1 is a liquid crystal display panel, which includes an external light source 201. The external light source 201 may be a backlight module in the display device 100. The backlight module is disposed on the back side of the liquid crystal display panel (ie, the side away from the display surface of the liquid crystal display panel).

[0070] Continue to see 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. One filter section 200 can transmit a single color of light. For example, one filter section 200 can transmit red light, and the filter section 200 transmitting red light can be called a red filter section.

[0071] Exemplarily, the plurality of filter sections 200 in the color film 20 include three filter sections that transmit monochromatic light, for example, the three monochromatic lights may be three primary colors: red light, green light, and blue light. Then, the plurality of filter sections 200 in the color film 20 may include at least one red filter section R, at least one green filter section G, and at least one blue filter section B.

[0072] 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, and the light emitted by the sub-pixel P1 can be irradiated on the corresponding filter section 200 to emit monochromatic light of the corresponding color. For example, when white light emitted from the sub-pixel P1 is irradiated on the corresponding filter section 200, the filter section 200 filters out light of some colors in the white light and only transmits light of one color (also called monochromatic light). The color of the monochromatic light transmitted from the filter section 200 is different from the color of the light 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.

[0073] In a VR or AR optical system, the emission angle of the main light emitted by the display panel 1 gradually increases from the center of the display panel 1 to the edge of the display panel 1, that is, the main light emitted by the display panel 1 tends to diverge outward. For example, the emission angle of the main light emitted from the central area of ​​the display panel 1 is generally 0°, and the emission angle of the main light emitted from the edge area of ​​the display panel 1 may be 30°.

[0074] In the related art, a lens is provided on the side of the color film away from the display substrate, and one light-emitting device or one external light source corresponds to one lens. The adjustment of the exit angle of the main light is achieved by adjusting the relative offset between the lens and the light-emitting device or the external light source. For example, the light-emitting device or the external light source is offset toward the center area of ​​the display panel compared to the corresponding lens, so that the main light emitted by the display panel tends to diverge outward.

[0075] The color filter moves with the lens, and its offset is consistent with the offset of the lens. In this way, the wide-angle white light (white light facing away from the center area of ​​the display panel) emitted by the light-emitting device or external light source may enter the lens above other adjacent filter parts after passing through the corresponding filter part in the color filter. For example, the wide-angle white light emitted by the light-emitting device or external light source will enter the lens above the green filter part after passing through the red filter part in the color filter.

[0076] Since the light exiting from the top of 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 the image color to be displayed incorrectly, causing the display panel to have color deviation during the display process, affecting the imaging quality.

[0077] See also Figure 5 and Figure 6 The embodiment of the present disclosure provides a display panel 1, which can be applied to the above-mentioned display device 100. 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.

[0078] It should be noted that, see Figure 3A The display panel 1 provided in the embodiment of the present disclosure may be an electroluminescent display panel; see Figure 3B The display panel 1 provided in the embodiment of the present disclosure may be a liquid crystal display panel.

[0079] 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 ​​the pixel P located in the edge display area A2 is 1 / 2 of the area of ​​the pixel P or is greater than 1 / 2 of the area of ​​the pixel P, then the pixel P is considered to be a pixel P located in the edge display area A2; if the area of ​​the pixel P located in the main display area A1 is greater than 1 / 2 of the area of ​​the pixel P, then the pixel P is considered to be a pixel P located in the main display area A1.

[0080] like Figure 5 and Figure 6 As shown, a plurality of pixels P are arranged on a substrate 101, and each pixel P includes at least three sub-pixels P1. A color filter 20 is arranged on a side of the plurality of pixels P away from the substrate 101; the color filter 20 includes at least three filter sections 200 of different colors, and each sub-pixel P1 corresponds to one filter section 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 section 200 on the substrate 101, so that the light emitted by the sub-pixel P1 transmits monochromatic light of the corresponding color from the corresponding filter section 200, thereby realizing full-color display of the display panel 1.

[0081] Among them, see Figure 6 The axis L1 of the sub-pixel P1 located in the edge display area A2 along the thickness direction is closer to the axis L3 of the substrate 101 along the thickness direction than the axis L2 of the corresponding filter part 200 along the thickness direction, so as to facilitate the subsequent adjustment of the exit angle of the main light, thereby meeting the design requirements of the VR or AR optical system.

[0082] It should be noted that, when the display panel 1 is an OLED display panel, the axis L1 corresponding to the sub-pixel P1 may be the light emitting device E (see Figure 5 In the case where the display panel 1 is a liquid crystal display panel, the axis L1 corresponding to the sub-pixel P1 may be the external light source 201 (see Figure 3B ) axis.

[0083] See also Figure 5 and Figure 6 , multiple first shading portions 30 are arranged in the edge display area A2 and are located on the side of the color filter 20 away from the substrate 101; each first shading 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 shading portion 30 on the substrate 101 at least covers the orthographic projection of the edge area of ​​the corresponding first part of the filter portion 200 on the substrate 101; the first part of the filter portion 200 is the part of the filter portion 200 away from the axis along the thickness direction of the substrate 101.

[0084] It should be noted that the material of the first light shielding portion 30 may include at least one of resin, metal element, alloy or metal oxide, etc. For example, the material of the first light shielding portion 30 is Cu (copper), Al (aluminum) or Ag (silver).

[0085] As can be seen from the above, the first light shielding portion 30 covers the edge area of ​​the first part of the filter portion 200, and the first part of the filter portion 200 is the part of the filter portion 200 that is away from the axis of the substrate 101 along the thickness direction. In this way, the first light shielding portion 30 can block the light of a large viewing angle emitted by the corresponding sub-pixel P1 (that is, the light emitted by the sub-pixel P1 that is away from the axis of the substrate 101 along the thickness direction) from passing through the corresponding filter portion 200 in the color filter 20 and entering the top of other adjacent filter portions 200. Therefore, the interference caused by the light generated by the sub-pixel P1 corresponding to the first light shielding portion 30 on the image color displayed by other adjacent sub-pixels P1 can be reduced, that is, the interference of crosstalk light in the related art is reduced, and the risk of image color display error is reduced.

[0086] See also Figure 5 and Figure 6In some embodiments, at least one sub-pixel P1 in each pixel P located in the edge display area A2 is provided with a first shading portion 30 to ensure that the color of the image displayed by each pixel P located in the edge display area A2 is accurate. It should be understood that the color displayed by each pixel P is determined by the color of the filter corresponding to the three sub-pixels included. Based on this, in order to ensure that the color of the image displayed by each pixel P located in the edge display area A2 is accurate, in actual application, the first shading portion 30 can be provided for one or more sub-pixels P1 in each pixel P located in the edge display area A2 according to needs.

[0087] Exemplarily, each sub-pixel P1 in each pixel P located in the edge display area A2 is correspondingly provided with a first shading portion 30 to reduce the interference caused by each sub-pixel P1 in each pixel P to the image color displayed by other adjacent sub-pixels P1, thereby ensuring that the image color displayed by each pixel P is accurate.

[0088] 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, a filter section 200 of a certain color among the multiple filter sections 200 corresponding to each pixel P located in the edge display area A2 can be provided with a corresponding first light shielding section 30.

[0089] Based on this, see Figure 5 and Figure 8 In some embodiments, the color of the filter portion 200 corresponding to the sub-pixel P1 provided with the first light shielding portion 30 in each pixel P 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.

[0090] Exemplarily, 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 correspondingly provided with a first shading portion 30, which can effectively reduce the reddish cast of the image at a wide viewing angle of the display panel 1.

[0091] It should be noted that the color of the filter section 200 corresponding to the red sub-pixel R is red, that is, the red filter section 301, and the red filter section 301 only allows red light to be transmitted out; the color of the filter section 200 corresponding to the blue sub-pixel G is blue, that is, the blue filter section 302, and the blue filter section 302 only allows blue light to be transmitted out; the color of the filter section corresponding to the green sub-pixel B is green, that is, the green filter section 303, and the green filter section 303 only allows green light to be transmitted out.

[0092] In the above embodiment, the shape of the first light shielding portion 30 is adjustable, and its specific form can be designed as required.

[0093] In some embodiments, the orthographic projection of the first shading portion 30 on the substrate 101 is roughly strip-shaped, and the first shading portion 30 extends along the boundary of the first part of the corresponding filter portion 200, so that a smaller shading area can be used to block a longer boundary, thereby effectively reducing the interference of crosstalk light and reducing the risk of image color display errors while ensuring the display brightness of the display panel 1 with minimal loss.

[0094] See also Figure 7 , illustratively, the orthographic projection of the filter section 200 on the substrate 101 is roughly a hexagon. Then, the three filter sections with different colors can form a triangle (Delta) distribution. Among them, the Delta distribution means that the lines connecting the geometric centers of gravity of a red filter section 301, a blue filter section 302 and a green filter section 303 that are closest to each other form a triangle. In the Delta distribution, every six filter sections constitute a minimum repeating unit. A minimum repeating unit is repeatedly arranged in both the row direction and the column direction to form a Delta distribution.

[0095] On this basis, see Figure 7 and Figure 8 , the boundary of the first part of the filter part 200 includes a first boundary B1 and a second boundary B2. The first light shielding part 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 substantially the same direction, and the first light shielding strip 310 covers the edge area where the first boundary B1 is located in the first part of the corresponding filter part 200; the second light shielding strip 320 and the second boundary B2 extend in substantially the same direction, and the second light shielding strip 320 covers the edge area where the second boundary B2 is located in the first part of the corresponding filter part 200.

[0096] In the above embodiment, the size of the first light shielding portion 30 is adjustable, and its specific size can be designed according to the shape.

[0097] In some embodiments, the areas of the plurality of first light shielding portions 30 are substantially equal. Exemplarily, the percentage of the area of ​​the first light shielding portion 30 to the corresponding light filter portion 200 is less than or equal to 20%, so as to ensure that the light filter portion 200 can transmit sufficient light and reduce the loss of display brightness of the display panel. For example, the orthographic projection of the first light shielding portion 30 on the substrate 101 is substantially strip-shaped, and the average width of the first light shielding portion 30 is less than or equal to 1 micron.

[0098] like Figure 5 and Figure 6As shown, the display area AA further includes a transition display area A3, and the transition display area A3 is located between the main display area A1 and the edge display area A2.

[0099] 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 ​​the pixel P located in the edge display area A2 is 1 / 2 of the area of ​​the pixel P or is greater than 1 / 2 of the area of ​​the pixel P, then the pixel P is considered to be a pixel P located in the edge display area A2; if the area of ​​the pixel P located in the transition display area A3 is greater than 1 / 2 of the area of ​​the pixel P, then the pixel P is considered to be a pixel P located in the transition display area A3.

[0100] 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 ​​the pixel P located in the main display area A1 is 1 / 2 of the area of ​​the pixel P or is greater than 1 / 2 of the area of ​​the pixel P, then the pixel P is considered to be a pixel P located in the main display area A1; if the area of ​​the pixel P located in the transition display area A3 is greater than 1 / 2 of the area of ​​the pixel P, then the pixel P is considered to be a pixel P located in the transition display area A3.

[0101] On this basis, see Figure 5 and Figure 6 The display panel 1 further includes a plurality of second light shielding portions 40 , which are disposed in the transition display area A3 and located on a side of the color film 20 away from the substrate 101 .

[0102] It should be noted that the material of the second light shielding portion 40 can be the same as the material of the first light shielding portion 30. Exemplarily, the material of the second light shielding portion 40 includes at least one of a resin, a metal element, an alloy, or a metal oxide, etc. For example, the material of the second light shielding portion 40 is Cu (copper), Al (aluminum), or Ag (silver).

[0103] Each second light shielding portion 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 area of ​​the first part of the corresponding filter portion 200 .

[0104] 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 of the substrate 101 along the thickness direction. In this way, the second light shielding portion 40 can block the light of a large viewing angle emitted by the corresponding sub-pixel P1 (i.e., the light emitted by the sub-pixel P1 that is away from the axis of the substrate 101 along the thickness direction) from passing through the corresponding filter portion 200 in the color filter 20 and entering the top of other adjacent filter portions 200. Therefore, the interference of the light generated by the sub-pixel P1 corresponding to the second light shielding portion 40 on the image color displayed by other adjacent sub-pixels P1 can be reduced, the interference of crosstalk light in the related art can be reduced, and the risk of image color display errors can be reduced.

[0105] The area of ​​the second light shielding portion 40 is smaller than or equal to the area of ​​the first light shielding portion 30, that is, the area of ​​the sub-pixel P1 corresponding to the second light shielding portion 40 in the transitional display area A3 is smaller. In this way, since the transitional display area A3 is located between the main display area A1 and the edge display area A2, the grayscale mutation between the sub-pixel of the main display area A1 and the sub-pixel of the edge display area A2 can be reduced, thereby avoiding obvious brightness changes between the display area A1 and the edge display area A2.

[0106] In addition, in a plane parallel to the substrate 101, the areas of the plurality of second light shielding portions 40 gradually increase along the direction from the center of the substrate 101 (i.e., the axis L3 along the thickness direction) to the boundary of the substrate 101. In this way, the brightness of the transitional display area A3 gradually decreases from the main display area A1 to the edge display area A2, so as to avoid obvious brightness changes between the transitional display area A3 and the display area A1, and between the transitional display area A3 and the edge display area A2.

[0107] See also Figure 5 and Figure 6 In some embodiments, at least one sub-pixel P1 in each pixel P in the transition display area A3 is provided with a second light shielding portion 40 to ensure that the color of the image 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 color of the filter corresponding to the three sub-pixels included. Based on this, in order to ensure that the color of the image displayed by each pixel P in the transition display area A3 is accurate, in actual application, a second light shielding portion 40 can be provided for one or more sub-pixels P1 in each pixel P in the transition display area A3 according to needs.

[0108] Exemplarily, each sub-pixel P1 in each pixel P located in the transition display area A3 is correspondingly provided with a second shading portion 40 to reduce the interference caused by each sub-pixel P1 in each pixel P to the image color displayed by other adjacent sub-pixels P1, thereby ensuring that the image color displayed by each pixel P is accurate.

[0109] Similar to the first shading portion 30, the light emitted by the sub-pixel P1 corresponding to the filter portion 200 of a certain color in each pixel P has a greater interference with other sub-pixels P1, so a filter portion 200 of a certain color among the multiple filter portions 200 corresponding to each pixel P located in the transition display area A3 can be correspondingly provided with a second shading portion 40.

[0110] Based on this, see Figure 5 and Fig. 9 In some embodiments, the color of the filter portion 200 corresponding to the sub-pixel P1 corresponding to the second light shielding portion 40 in each pixel P is the same. In addition, the color of the filter portion corresponding to the sub-pixel P1 corresponding to the second light shielding portion 40 in each pixel P is the same as the color of the filter portion corresponding to the sub-pixel P1 corresponding to the first light shielding portion 30 in each pixel P. In this case, the area blocked by the second light shielding portion 40 in each pixel P located in the transition display area A3 is small, the display brightness of the display panel 1 is large, and the interference of crosstalk light can be effectively reduced.

[0111] For example, see Fig. 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 correspondingly provided with a second shading portion 40, which can effectively reduce the phenomenon of reddish images at a wide viewing angle of the display panel 1.

[0112] In the above embodiment, the shape of the second light shielding portion 40 is adjustable, and its specific form can be designed as required.

[0113] In some embodiments, the orthographic projection of the second shading portion 40 on the substrate 101 is roughly strip-shaped, and the second shading portion 40 extends along the boundary of the first part of the corresponding filter portion 200, blocking the longer boundary with a smaller shading area, thereby effectively reducing the interference of crosstalk light and reducing the risk of image color display errors while ensuring the display brightness of the display panel 1 with minimal loss.

[0114] like Figure 7 and Fig. 9As shown, illustratively, the orthographic projection of the filter section 200 on the substrate 101 is roughly a hexagon. Then, the three filter sections with different colors can form a delta distribution. The boundary of the first part of the filter section 200 includes a first boundary B1 and a second boundary B2. The second light shielding section 40 includes a third light shielding strip 410 and a fourth light shielding strip 420. Among them, the extension direction of the third light shielding strip 410 is roughly the same as the extension direction of the first boundary B1, and the third light shielding strip 410 covers the edge area of ​​the first part of the corresponding filter section 200 where the first boundary B1 is located; the extension direction of the fourth light shielding strip 420 is roughly the same as the extension direction of the second boundary B2, and the fourth light shielding strip 420 covers the edge area of ​​the first part of the corresponding filter section 200 where the second boundary B2 is located.

[0115] In the above embodiment, the size of the second light shielding portion 40 is adjustable, and its specific size can be designed according to the shape.

[0116] 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 the external light source and the corresponding filter portion 200. Wherein, when the orthographic projection of the second light shielding portion 40 on the substrate 101 is substantially strip-shaped, the average width of the second light shielding portion 40 is 0.2 micrometers to 1 micrometer.

[0117] See also Figure 6 and Fig.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 portion 30 and the second light shielding portion 40 away from the substrate 101 to adjust the exit angle of the main light, thereby meeting the design requirements of the VR or AR optical system. Each lens 50 corresponds to a filter portion 200, and the boundary of the orthographic projection of each lens 50 on the substrate 101 approximately coincides with the boundary of the orthographic projection of the corresponding filter portion 200 on the substrate, so as to ensure that as much light as possible projected by each filter portion 200 enters the corresponding lens 50, and is emitted at a preset angle after being deflected by the lens 50.

[0118] In the above embodiment, the lens 50 is a convex lens. For example, the shape of the lens 50 is hemispherical. The lens 50 can be formed by a baking process.

[0119] See also Figure 6 In some embodiments, a flat layer 60 is further disposed between the lens 50 and the first light shielding portion 30 , the second light shielding portion 40 and the color film 20 , so as to make the heights of the lenses 50 more uniform.

[0120] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection 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 filter part corresponding to the sub-pixel is offset relative to the sub-pixel in a first extension direction from the main display area to the edge display area; A plurality of first shading portions are arranged in the edge display area; 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 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 the part of the filter portion away from the main display area.

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 area percentage of the first light shielding portion and the corresponding light filtering portion is less than or equal to 20%.

6. The display panel according to claim 1, characterized in that: The average width of the first light shielding portion is less than or equal to 1 micrometer.

7. The display panel according to claim 1, characterized in that: The material of the first light shielding portion includes at least one of resin, metal element, alloy, metal oxide, and the like.

8. 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 a boundary of the first part of the corresponding filter portion.

9. 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.

10. The display panel according to claim 1, characterized in that: The areas of the plurality of first light shielding portions are equal.

11. The display panel according to any one of claims 1 to 10, 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.

12. The display panel according to claim 11, characterized in that: The color of the filter portion corresponding to the sub-pixel provided with the second light shielding portion is the same as the color of the filter portion corresponding to the sub-pixel provided with the first light shielding portion.

13. The display panel according to claim 12, 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.

14. The display panel according to claim 13, 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.

15. The display panel according to claim 11, characterized in that: The material of the second light shielding portion is the same as that of the first light shielding portion.

16. The display panel according to claim 11, 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.

17. 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.

18. The display panel according to claim 11, 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.

19. The display panel according to claim 11, 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.

20. A display device, characterized in that: The invention comprises the display panel according to any one of claims 1 to 19.

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