CN110989069B - Display panel and display device - Google Patents
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- CN110989069B CN110989069B CN202010005611.0A CN202010005611A CN110989069B CN 110989069 B CN110989069 B CN 110989069B CN 202010005611 A CN202010005611 A CN 202010005611A CN 110989069 B CN110989069 B CN 110989069B
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- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
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Abstract
The invention discloses a display panel and a display device. The display panel has a display area and a non-display area surrounding the display area, the display area includes a main display area and an edge display area surrounding at least a portion of the main display area, the edge display area is disposed adjacent to an edge of the non-display area, the display panel includes: the display substrate comprises a plurality of edge sub-pixels, and at least part of the edge sub-pixels are partially or completely positioned in the edge display area; and the light guide structure is positioned on the light outlet side of the display substrate, at least part of the light guide structure is positioned in the edge display area and extends to the non-display area, the light guide structure covers at least partial area of the edge sub-pixel in the direction perpendicular to the display substrate, and the light guide structure is used for guiding light emitted by the covered edge sub-pixel to the non-display area. The technical scheme of the invention can avoid the phenomenon of edge color edge or sawtooth of the display panel.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
With the continuous development of display technology, the application of display panels is becoming more and more widespread. Display panels are increasingly in demand for small-sized electronic devices, such as cell phones and wearable electronics. At the same time, however, the display performance requirements of the display panel are also increasing.
When the screen is watched at a close distance, the display panel has a color edge phenomenon. The color fringing affects the display effect of the display panel. In the display device of the existing wearable equipment product, the problems of edge color and edge saw tooth of the display panel even exist generally, so that the comfort level of the user for using the corresponding electronic product is reduced.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for avoiding the problem of edge color edges or saw teeth of the display panel and improving the display effect of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, where the display panel has a display area and a non-display area surrounding the display area, the display area includes a main display area and an edge display area surrounding at least a part of the main display area, and the edge display area is disposed adjacent to an edge of the non-display area, and the display panel includes:
the display substrate comprises a plurality of edge sub-pixels, and at least part of or all of the edge sub-pixels are positioned in the edge display area;
the light guide structure is located the light-emitting side of display substrate, and at least part is located the edge display area and follow the edge display area to the non-display area extends, in the perpendicular to in display substrate's direction, the light guide structure covers the at least partial region of edge sub-pixel, the light guide structure be used for with the cover the light that the edge sub-pixel sent leads to the non-display area. According to the technical scheme, the light emitted by the covered edge sub-pixels is transmitted to the non-display area from the edge display area through the light guide structure, so that the problem of edge colored edges or saw teeth of the display panel caused by the edge sub-pixels is solved.
Optionally, the edge sub-pixels include a first edge sub-pixel and a second edge sub-pixel, the first edge sub-pixel is disposed to protrude toward the non-display area with respect to the second edge sub-pixel, and the light guide structure covers a portion of the first edge sub-pixel protruding toward the non-display area with respect to the second edge sub-pixel in a direction perpendicular to the display substrate.
Optionally, the light guiding structure comprises a lens or a prism; preferably, the lens comprises a concave lens or a convex lens, and the prism comprises a triangular prism. According to the technical scheme, the light emitted by the edge sub-pixels covered by the light guide structure can be refracted to the non-display area through the light guide structure with simple design, and the process difficulty is reduced.
Optionally, the light guiding structure is configured to refract light emitted from the edge sub-pixel to the non-display area, after vertical light emitted from a side of the edge sub-pixel away from the main display area is refracted by the light guiding structure, an extended reverse line of the refracted light intersects with the edge sub-pixel in the main display area, and the following relationship is satisfied:
wherein n is1Is the refractive index of the light guiding structure; n is2The refractive index of a film layer covering the surface of the light guide structure; a is an incident angle of vertical light emitted from one side of the edge sub-pixel far away from the main display area when reaching the light-emitting surface of the light guide structure; beta is a refraction angle formed by refracting the vertical light emitted from one side of the edge sub-pixel far away from the main display area through the light guide structure; theta is an acute angle formed between vertical light emitted from one side, far away from the main display area, of the edge sub-pixel and the vertical light after the vertical light is refracted by the light guide structure; d0The distance from one side of the edge sub-pixel far away from the main display area to the edge of the main display area is set; d1The distance from the intersection point of the reverse extension line of the refracted light and the edge sub-pixel to the side of the edge sub-pixel far away from the main display area; d2The distance from the vertical light emitted from the side of the edge sub-pixel far away from the main display area to the light-emitting surface of the light guide structure is shown.
Optionally, a side edge of the light guide structure close to the center of the main display area is located on a boundary line between the edge display area and the main display area. The technical scheme can not only ensure that the light emitted by the edge sub-pixels covered by the light guide structure is guided to the non-display area to the maximum extent, but also prevent the light guide structure from covering the sub-pixels positioned in the main display area, thereby avoiding influencing the display effect of the main display area.
Optionally, the light guiding structure is continuously or intermittently arranged. According to the technical scheme, the light guide structures are continuously arranged, so that the etching of the light guide structures can be reduced, and the etched patterns are simple; through the discontinuous arrangement of the light guide structures, the corresponding light guide structures can be flexibly arranged according to different sizes of the edge sub-pixels covered by the light guide structures, and the light emitted by each covered edge sub-pixel is further ensured to be guided to the non-display area.
Optionally, the light guide structure is independently arranged or arranged on the same layer as a film layer in the display panel;
preferably, the display panel comprises an encapsulation layer covering the display substrate, and a cover glass positioned on one side of the encapsulation layer far away from the display substrate;
the light guide structure and the packaging layer are located on the same layer, or the light guide structure is located on the surface, far away from one side of the display substrate, of the packaging layer, or the light guide structure and the glass cover plate are located on the same layer, or the light guide structure is located on the surface, far away from one side of the display substrate, of the glass cover plate.
Optionally, the light guide structure has a light transmittance of greater than 70%. The technical scheme can ensure that light emitted by the edge sub-pixels covered by the light guide structure is guided to the brightness of the non-display area through the light guide structure, so that the problem of no color cast when the edge of the display area of the display panel is viewed under a large visual angle is solved.
Optionally, the boundary line between the edge display area and the main display area is a straight line, a curved line or a combination of the straight line and the curved line.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel provided in any embodiment of the present invention.
According to the technical scheme, the display panel is divided into the display area and the non-display area, the display area comprises a main display area and an edge display area surrounding at least part of the main display area, the edge display area is arranged close to the edge of the non-display area, part or all of at least part of edge sub-pixels are located in the edge display area, the edge display area adjacent to the non-display area and the main display area far away from the non-display area and adjacent to the edge display area are included, and pixel protrusions of part of the edge sub-pixels are located in the edge display area. According to the technical scheme, the light guide structure is arranged on the light emergent side of the display substrate, so that the light guide structure is partially or completely positioned in the edge display area, and in the direction perpendicular to the display substrate, the light guide structure completely or partially covers the edge sub-pixels and guides light emitted by the covered edge sub-pixels to the non-display area. Therefore, according to the technical scheme of the embodiment of the invention, the light emitted by the covered edge sub-pixels can be transmitted to the non-display area from the edge display area through the light guide structure, so that the problem of edge color fringe or saw tooth of the display panel caused by the fact that partial areas of partial edge sub-pixels are arranged towards the non-display area in a protruding mode relative to other edge sub-pixels is solved.
Drawings
FIG. 1 is a schematic diagram of a pixel structure of a conventional display panel;
fig. 2 is a schematic top view of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic sectional view taken along line A1-A2 in FIG. 1;
FIG. 4 is a schematic diagram of light emission of an edge pixel according to an embodiment of the present invention;
fig. 5 is a schematic top view of another display panel according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional structure diagram of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
As mentioned in the background, the conventional display panel has a problem of edge color or jaggy when displaying a screen. The inventors have intensively studied and found that the above technical problem is caused because the display panel includes a plurality of pixel units each including a plurality of sub-pixels. For example, when the display panel includes red, green, and blue sub-pixels, each pixel unit may include the red, green, and blue sub-pixels. In the partial pixel structure, due to the requirements of pixel arrangement and sizes of sub-pixels with different colors, and in order to ensure the integrity of pixel units, in the edge area of the display panel, there may exist a protruding portion of a partial sub-pixel relative to other sub-pixels toward the non-display area, and uneven jaggy appears at the periphery of the contour line of the display area, which causes the edge to appear a colorful edge or a jaggy feeling when the display panel displays pictures. For example, fig. 1 is a schematic diagram of a pixel structure of a conventional display panel. As shown in fig. 1, the display panel has a display area 100 and a non-display area 200, the display area 100 includes an edge display area 110 adjacent to the non-display area 200 and a main display area 120 far away from the non-display area 200 and adjacent to the edge display area 110, a plurality of sub-pixels of different colors are arranged in a matrix on the display substrate 10, wherein the sub-pixels include a red sub-pixel R, a green sub-pixel G and a blue sub-pixel B, the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B form a pixel unit 11, and the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B are arranged in a delta shape; therefore, in the pixel unit 11 of the first row, the green sub-pixel G protrudes towards the non-display area relative to the blue sub-pixel B, and the protrusion is located in the edge display area 110, while in the pixel unit 11 of the last row, the red sub-pixel R protrudes towards the non-display area relative to the blue sub-pixel B, and the protrusion is located in the edge display area 110, so that the upper edge of the display area presents a green edge, the lower edge presents a red edge, and the problem of edge color edge of the display area occurs.
In view of the above technical problems, the present invention provides a display panel. The display panel has a display area and a non-display area surrounding the display area, the display area includes a main display area and an edge display area surrounding at least a portion of the main display area, the edge display area is disposed adjacent to an edge of the non-display area, the display panel includes: the display substrate comprises a plurality of edge sub-pixels, and at least part of the edge sub-pixels are partially or completely positioned in the edge display area; and the light guide structure is positioned on the light emergent side of the display substrate, at least part of the light guide structure is positioned in the edge display area and extends from the edge display area to the non-display area, and in the direction vertical to the display substrate, the light guide structure covers at least part of area of the edge sub-pixels and is used for guiding light emitted by the covered edge sub-pixels to the non-display area.
According to the technical scheme of the embodiment, the light emitted by the covered edge sub-pixels can be transmitted to the non-display area from the edge display area through the light guide structure, so that the problem of color fringes or saw teeth at the edge of the display panel is solved.
In the above technical solution, the boundary line between the edge display area and the main display area is actually the contour line of the display area desired to be designed, so that the edge display area is an area not desired to be displayed in an actual product. The display panel of the embodiment is suitable for a special-shaped screen (commonly called a Liuhai screen), a rectangular screen with an arc chamfer and the like; accordingly, the boundary line between the edge display region and the main display region may be a straight line, a curved line, or a combination of a straight line and a curved line. In addition, the light guide structure is used for guiding the light emitted by the covered edge sub-pixels to the non-display area, so that the emergence of vertical light of the edge sub-pixels is greatly reduced, and the phenomenon of color fringes is weakened. When the light guide structure is prepared, a whole light guide layer can be prepared, the light guide structure is only formed in the region outside the main display area, and then the light guide layer positioned in the main display area can be reserved or removed. In the invention, the light guide structure can be made of organic or inorganic light-transmitting material.
Exemplarily, based on the above technical solutions, in an embodiment of the present invention, fig. 2 is a schematic top view structure diagram of a display panel provided in the embodiment of the present invention (fig. 2 only schematically illustrates a pixel structure, and does not limit the technical solutions of the present invention); fig. 3 is a schematic partial cross-sectional view of a display panel according to an embodiment of the present invention (fig. 3 only schematically shows a main film structure related to the technical solution of the present invention, and does not limit the technical solution of the present invention). As shown in fig. 2 and 3, the display panel may be applied to a rectangular screen, the display panel having a display area 100 and a non-display area 200 surrounding the display area 100, the display area 100 including a main display area 120 and an edge display area 110 surrounding at least a portion of the main display area 120, the edge display area 110 being disposed adjacent to an edge of the non-display area 200, the display panel including: a display substrate 10, including a plurality of edge pixels 12 (e.g., a first row of pixels or a last row of pixels as shown in the figure) located at an edge of the display area 100, where the edge pixels 12 include a plurality of edge sub-pixels 121, and a part or all (which may be named as pixel protrusions 111 in embodiments of the present invention) of at least a portion of the edge sub-pixels 121 (e.g., a green sub-pixel G in the first row of edge pixels 12) are located in the edge display area 110; the light guide structure 1 is located on the light emitting side of the display substrate 10, at least a portion of the light guide structure 1 is located in the edge display region 110 and extends from the edge display region 110 to the non-display region 200, in a direction perpendicular to the display substrate (i.e., the direction of the thickness of the display panel), the light guide structure 1 covers at least a partial region of the edge sub-pixel 121, and the light guide structure 1 is configured to guide light emitted by the covered edge sub-pixel 121 to the non-display region.
It should be noted that, in this embodiment, an edge sub-pixel in the row direction is exemplarily described as an example, and for different pixel arrangements or designs of the edge of the display area, there may be a case that a part of the edge sub-pixels in the column direction protrudes toward the non-display area, and at this time, a color edge problem may occur at the edge of the display area corresponding to the first column of pixels or the last column of pixels. In contrast, the light guide structure may be arranged to cover the edge sub-pixels in the first row of edge pixels and/or the last row of edge pixels, and guide light emitted by the covered edge sub-pixels to the non-display area, thereby reducing the luminance of vertical light of the covered edge sub-pixels, and further improving the edge color-fringing problem at the position of the display area corresponding to the first row of edge pixels and/or the last row of edge pixels.
In the embodiment, by arranging the light guide structure 1 completely or partially covering the pixel protrusion 111 in the edge display area 110, the propagation direction of the light emitted by the pixel protrusion 111 can be changed, so that most of the light emitted by the pixel protrusion 111 propagates towards the non-display area 200, the emission of the vertical light of the pixel protrusion 111 is greatly reduced, and the problem of color fringes at the edge of the display area is solved.
In addition, for the special-shaped screen and the rectangular screen with the chamfer, the expected display area has an arc-shaped outer contour, and the pixels are generally in a regular rectangle shape, so that the edge pixels at the edge of the display area cannot be matched with the arc-shaped outer contour, and when the display panel displays images, the edge of the display area close to the arc-shaped outer contour has an obvious saw-tooth phenomenon. In contrast, the display panel of the present invention is also applicable to a special-shaped screen and a rectangular screen having a chamfer, so that the problem of edge jagging of the display panel can be effectively improved.
In summary, in the present embodiment, the light guiding structure transmits the light emitted from the covered edge sub-pixels from the edge display area to the non-display area, so as to improve the problem of edge color or jaggy of the display panel due to the protruding arrangement (i.e. the pixel protrusion) of part of the edge sub-pixels towards the non-display area relative to other edge sub-pixels.
Optionally, the edge sub-pixels include a first edge sub-pixel and a second edge sub-pixel, the first edge sub-pixel is disposed to protrude toward the non-display area with respect to the second edge sub-pixel, and the light guide structure covers a portion of the first edge sub-pixel protruding toward the non-display area with respect to the second edge sub-pixel in a direction perpendicular to the display substrate.
For example, referring to fig. 2, in the first row of edge pixels 12, the green sub-pixel G is a first edge sub-pixel, the blue sub-pixel B is a second edge sub-pixel, the green sub-pixel G is disposed to protrude toward the non-display area 200 relative to the blue sub-pixel B, and a portion of the green sub-pixel G protruding toward the non-display area 200 relative to the blue sub-pixel B is the pixel protrusion 111. At this time, in the direction perpendicular to the display substrate, the light guide structure is arranged to cover the pixel protrusion 111, so that light emitted by the pixel protrusion 111 can be guided to the non-display area, thereby reducing the luminance of the vertical light of the covered edge sub-pixel, and further improving the edge color fringe problem of the display area.
Optionally, in the above technical solution, the light guiding structure 1 includes a lens or a prism, so as to refract light emitted from the pixel protrusion 111 to the non-display area.
Preferably, the lens comprises a concave lens or a convex lens and the prism comprises a triangular prism. Therefore, light emitted by the edge sub-pixels covered by the light guide structure can be refracted to the non-display area through designing the simple light guide structure, and the process difficulty is reduced.
It can be understood that the light guide structure is specifically a concave lens or a convex lens, or the change condition of the light emitting surface of the light guide structure from the edge of the main display area to the non-display area can be set according to the refractive index of the light guide structure and the refractive index of the film layer covering the surface of the light guide structure, which is determined according to the actual condition and is not limited thereto.
Alternatively, as shown in fig. 3 and 4, the light guiding structure 1 is used to refract the light emitted from the covered edge sub-pixel 12 to the non-display area, and after the vertical light emitted from the side of the edge sub-pixel 12 away from the main display area is refracted by the light guiding structure, the reverse extended line of the refracted light intersects with the edge sub-pixel in the main display area, and the following relationship is satisfied:
wherein n is1Is the refractive index of the light guiding structure 1; n is2Is the refractive index of the film (not shown) covering the surface of the light guide structure 1; a is an incident angle of vertical light emitted from one side of the edge sub-pixel far away from the main display area when reaching the light-emitting surface of the light guide structure; beta is a refraction angle formed by refracting the vertical light emitted from one side of the edge sub-pixel far away from the main display area through the light guide structure; theta is an acute angle formed between vertical light emitted from one side, far away from the main display area, of the edge sub-pixel and the vertical light after the vertical light is refracted by the light guide structure; d0The distance from one side of the edge sub-pixel far away from the main display area to the edge of the main display area is set; d1The distance from the intersection point of the reverse extension line of the refracted light and the edge sub-pixel to the side of the edge sub-pixel far away from the main display area; d2The distance from the vertical light emitted from the side of the edge sub-pixel far away from the main display area to the light-emitting surface of the light guide structure is shown. Therefore, the light guide structure 1 (including refractive index, material corresponding to refractive index, slope and thickness of light exit surface) can be designed according to the above relation, so as to ensure that after the light emitted by the covered edge sub-pixel, i.e. the pixel protrusion 111, is refracted by the light guide structure, the reverse extension line of the refracted light intersects with the edge pixel to which the pixel protrusion 111 belongs in the main display area, so that a user feels that the pixel protrusion 111 emits light from the main display area, thereby improving the utilization rate of the light emitted by the pixel protrusion 111.
Alternatively, referring to fig. 2, a side edge of the light guiding structure 1 close to the center of the main display area 120 is located on a boundary line between the edge display area 110 and the main display area 120. Therefore, the light emitted by the edge sub-pixels 121 covered by the light guide structure 1 can be guided to the non-display area to the maximum extent, and the light guide structure 1 can be prevented from covering the sub-pixels positioned in the main display area, so that the display effect of the main display area is prevented from being influenced.
Optionally, with continued reference to fig. 2, the light guide structure 1 extends from the non-display region 200 to the edge display region 110. Therefore, the light guide structure 1 includes a portion located in the edge display region 110 and covering the pixel protrusion 111, and also includes a portion located in the non-display region 200 adjacent to the edge display region 110, so that the requirement of alignment accuracy of the light guide structure 1 in the manufacturing process can be reduced, and the process difficulty is reduced.
Alternatively, the light guiding structure 1 is arranged continuously or intermittently.
Exemplarily, referring to fig. 2, the light guide structures 1 are continuously arranged, that is, the light guide structures 1 are connected into a whole, and at this time, the etching of the light guide structures 1 can be reduced, and the etching pattern is simple. In addition, referring to fig. 5, the light guiding structure 1 may also be disposed discontinuously, that is, a plurality of unconnected light guiding structures 1 may be disposed in the edge display area 110. Optionally, the light guide structures 1 are disposed in one-to-one correspondence with the pixel protrusions 111, that is, one light guide structure 1 covers one pixel protrusion 111, and at this time, the corresponding light guide structures 1 can be flexibly disposed for the pixel protrusions 111 with different sizes, so as to further ensure that light emitted by each pixel protrusion 111 is guided to the main display area 120 where the edge pixel 12 to which the pixel protrusion 111 belongs is located.
Optionally, the light guide structure 1 is disposed independently or in the same layer as a film layer in the display panel.
Specifically, the display panel comprises an encapsulation layer covering the display substrate, and cover plate glass positioned on one side of the encapsulation layer far away from the display substrate; the light guide structure and the packaging layer are located on the same layer, or the light guide structure is located on the surface of one side, away from the display substrate, of the packaging layer, or the light guide structure and the glass cover plate are located on the same layer, or the light guide structure is located on the surface of one side, away from the display substrate, of the glass cover plate.
In the embodiment, when the light guide structure is independently arranged, a layer of transparent optical adhesive can be spin-coated on the surface of the packaging layer or the cover plate glass, and the light guide structure is formed by photoetching; or forming a light guide structure on a substrate and attaching the light guide structure to the surface of the packaging layer or the cover glass. When the light guide structure and a film layer in the display panel are arranged on the same layer, if the packaging layer is a thin film packaging layer formed by laminating an organic layer and an inorganic layer, the light guide structure and the organic layer in the packaging layer can be arranged on the same layer, so that the light guide structure can be conveniently formed by patterning; the cover glass can also be patterned to form a light guide structure in the edge display region.
In a preferred embodiment of the present invention, fig. 6 is a schematic cross-sectional structure diagram of a display panel according to an embodiment of the present invention. As shown in fig. 6, the display substrate includes a display substrate 2 and a light-emitting functional layer 3 on the display substrate 2, the light-emitting functional layer 3 including a plurality of edge pixels; the display panel also comprises an encapsulation layer 4 covering the luminous functional layer 3, and cover plate glass 5 positioned on one side of the encapsulation layer 4 far away from the display substrate; the light guide structure 1 is located on the surface of the encapsulation layer 4 on the side far away from the display substrate 2. Considering that light emitted by the pixel convex part is relatively dispersed when the light passes through the multilayer film layer and then is guided by the light guide structure 1, the design of the light guide structure 1 is relatively complex, and therefore, the closer the light guide structure 1 is to the light emitting functional layer 3, the better the light guide structure 1 is; the technology of forming the light guide structure 1 in the thin film packaging layer by ink-jet printing is not mature, and the product yield is low, so that the light guide structure 1 is arranged on the surface of one side of the packaging layer 4, which is far away from the display substrate 2, and the design of the light guide structure 1 is simplified while the product yield is ensured.
Alternatively, in each of the above embodiments, the light transmittance of the light guide structure is greater than 70%, so that the brightness of the light emitted from the pixel protrusion 111 guided to the non-display area through the light guide structure can be ensured, thereby ensuring that the display area edge of the display panel is free from color shift when viewed under a large viewing angle.
The embodiment of the invention also provides a display device. Fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 7, the display device 30 includes the display panel 31 provided in any embodiment of the present invention, the display device 30 may be a mobile phone, a computer, a tablet, or a wearable device, and the like, and the display device 30 includes the pixel structure provided in any embodiment of the present invention, so that the same advantageous effects are also provided, and details are not repeated herein.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A display panel having a display area and a non-display area surrounding the display area, the display area including a main display area and an edge display area surrounding at least a portion of the main display area, the edge display area being disposed adjacent to an edge of the non-display area, the display panel comprising:
the display substrate comprises a plurality of edge sub-pixels, and at least part of or all of the edge sub-pixels are positioned in the edge display area;
the light guide structure is positioned on the light emitting side of the display substrate, at least part of the light guide structure is positioned in the edge display area and extends from the edge display area to the non-display area, and in the direction perpendicular to the display substrate, the light guide structure covers at least part of the area of the edge sub-pixels and is used for guiding the light emitted by the covered edge sub-pixels to the non-display area;
the light guide structure is used for refracting light emitted by the edge sub-pixels covered to the non-display area, after vertical light emitted from one side of the edge sub-pixels, which is far away from the main display area, is refracted by the light guide structure, the reverse extension line of the refracted light and the edge sub-pixels are intersected in the main display area, and the following relations are met:
wherein n is1Is the refractive index of the light guiding structure; n is2The refractive index of a film layer covering the surface of the light guide structure; a is an incident angle of vertical light emitted from one side of the edge sub-pixel far away from the main display area when reaching the light-emitting surface of the light guide structure; beta is a refraction angle formed by refracting the vertical light emitted from one side of the edge sub-pixel far away from the main display area through the light guide structure; theta is an acute angle formed between vertical light emitted from one side, far away from the main display area, of the edge sub-pixel and the vertical light after the vertical light is refracted by the light guide structure; d0The distance from one side of the edge sub-pixel far away from the main display area to the edge of the main display area is set; d1The distance from the intersection point of the reverse extension line of the refracted light and the edge sub-pixel to the side of the edge sub-pixel far away from the main display area; d2The distance from the vertical light emitted from the side of the edge sub-pixel far away from the main display area to the light-emitting surface of the light guide structure is shown.
2. The display panel according to claim 1, wherein the edge sub-pixels comprise a first edge sub-pixel and a second edge sub-pixel, the first edge sub-pixel is disposed to protrude toward the non-display region relative to the second edge sub-pixel, and the light guide structure covers a portion of the first edge sub-pixel protruding toward the non-display region relative to the second edge sub-pixel in a direction perpendicular to the display substrate.
3. The display panel of claim 1, wherein the light guide structure comprises a lens or a prism;
the lens includes a concave lens or a convex lens, and the prism includes a triangular prism.
4. The display panel of claim 1, wherein a side of the light guide structure near the center of the main display area is located on a boundary line between the edge display area and the main display area.
5. The display panel according to claim 4, wherein the light guide structure is continuously or intermittently disposed.
6. The display panel of claim 5, wherein the light guide structure is disposed independently or in the same layer as a film layer in the display panel;
the display panel comprises an encapsulation layer covering the display substrate and cover plate glass positioned on one side of the encapsulation layer far away from the display substrate;
the light guide structure and the packaging layer are located on the same layer, or the light guide structure is located on the surface, far away from one side of the display substrate, of the packaging layer, or the light guide structure and the glass cover plate are located on the same layer, or the light guide structure is located on the surface, far away from one side of the display substrate, of the glass cover plate.
7. The display panel according to claim 5 or 6, wherein the light guide structure has a light transmittance of more than 70%.
8. The display panel according to claim 1, wherein the boundary between the edge display region and the main display region is a straight line, a curved line or a combination of a straight line and a curved line.
9. A display device characterized by comprising the display panel according to any one of claims 1 to 8.
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| CN111864109B (en) * | 2020-07-14 | 2023-02-03 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112449167A (en) * | 2020-11-13 | 2021-03-05 | 深圳市火乐科技发展有限公司 | Image sawtooth elimination and image display method and device |
| CN113135652A (en) * | 2021-05-25 | 2021-07-20 | 张恒源 | Method for reducing green edge of mobile phone OLED curved screen |
| CN114267251A (en) * | 2021-12-16 | 2022-04-01 | Tcl华星光电技术有限公司 | Display device and splicing display device |
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| CN104503115A (en) * | 2015-01-14 | 2015-04-08 | 合肥鑫晟光电科技有限公司 | Display panel and display device |
| CN207353293U (en) * | 2017-11-09 | 2018-05-11 | 上海和辉光电有限公司 | A kind of display panel and display device |
| CN111025742A (en) * | 2020-01-02 | 2020-04-17 | 云谷（固安）科技有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104503115A (en) * | 2015-01-14 | 2015-04-08 | 合肥鑫晟光电科技有限公司 | Display panel and display device |
| CN207353293U (en) * | 2017-11-09 | 2018-05-11 | 上海和辉光电有限公司 | A kind of display panel and display device |
| CN111025742A (en) * | 2020-01-02 | 2020-04-17 | 云谷（固安）科技有限公司 | Display panel and display device |
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