CN109613734B - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN109613734B
CN109613734B CN201910085052.6A CN201910085052A CN109613734B CN 109613734 B CN109613734 B CN 109613734B CN 201910085052 A CN201910085052 A CN 201910085052A CN 109613734 B CN109613734 B CN 109613734B
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light
area
display panel
display
polarizer
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CN109613734A (en
Inventor
王君荣
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133388Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region

Abstract

The invention discloses a display panel and a display device, comprising: the device comprises a display area, a non-display area and at least one groove body, wherein the non-display area is arranged around the display area; the display area comprises an abnormal edge, the abnormal edge comprises at least one section of sub-edge, and the sub-edge is sunken towards the inside of the display area to form a groove body; the display panel comprises an array substrate, an opposite substrate, a first polaroid and a light intensifying layer; the array substrate and the opposite substrate are oppositely arranged, and the first polarizer is positioned on one side of the array substrate, which is far away from the opposite substrate; the light enhancing layer is positioned on one side of the first polarizer, which is far away from the array substrate, and comprises at least one first area, the first area is arranged close to the groove body, the part of the light enhancing layer, except the first area, is a second area, and the reflectivity of the first area is smaller than that of the second area; in the direction perpendicular to the plane of the array substrate, the orthographic projection of the first area and the orthographic projection of the first polarizer are overlapped. Compared with the prior art, the light entering the groove body from the side face of the first polaroid can be effectively reduced.

Description

Display panel and display device
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
Flat panel displays such as Liquid Crystal Displays (LCDs) are widely used in electronic products such as mobile phones, televisions, and computers because of their advantages such as high image quality, power saving, and lightness and thinness. However, with the continuous development of display technologies, people have higher requirements on the functions and visual experience of the display screen, and the design concept of narrow frames is followed. The narrow frame design can make the screen of display screen account for the increase, and the frame width of narrow frame display screen is comparing the frame width of ordinary display screen and is being littleer a lot of also to can provide better visual experience.
In order to realize the narrow frame design, the current mainstream method is to design the display screen into a shape other than a regular rectangle, that is, a so-called special-shaped display screen, and the special-shaped display screen can better avoid the installation requirements of photosensitive devices such as a camera. In order to prevent the light leakage on the frame surface of the display screen, a light shielding layer is usually arranged in the frame area, and the light shielding layer is difficult to prevent the light leakage on the side surface of the frame.
Therefore, how to solve the problem of side light leakage of the display screen to ensure the performance of the photosensitive device is one of the important technical problems to be solved urgently in the industry.
Disclosure of Invention
In view of the foregoing, the present invention provides a display panel and a display device to reduce the side light leakage effect.
The present invention provides a display panel, comprising: the device comprises a display area, a non-display area and at least one groove body, wherein the non-display area is arranged around the display area; the display area comprises an abnormal edge, the abnormal edge comprises at least one section of sub-edge, and the sub-edge is sunken towards the inside of the display area to form a groove body; the display panel comprises an array substrate, an opposite substrate, a first polaroid and a light intensifying layer; the array substrate and the opposite substrate are oppositely arranged, and the first polarizer is positioned on one side of the array substrate, which is far away from the opposite substrate; the light enhancing layer is positioned on one side of the first polaroid, which is far away from the array substrate, and comprises at least one first area, the first area is arranged close to the groove body, and the part of the light enhancing layer, except the first area, is a second area; wherein the reflectivity of the first region is less than the reflectivity of the second region; in the direction perpendicular to the plane of the array substrate, the orthographic projection of the first area and the orthographic projection of the first polarizer are overlapped.
In addition, the invention also provides a display device which comprises the display panel provided by the invention.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
through sunken formation cell body with the inside of sub-edge orientation display area, be favorable to improving display panel's screen and account for the ratio, and the cell body region can install the function device, can satisfy user diversified vision and functional requirement. The light transmittance of the first polaroid can be improved through the light enhancing layer, and the brightness of the picture display of the display panel is improved, so that the display effect is improved, and the energy consumption is reduced; on the other hand, the reflectivity of the first area of the light intensifying layer is smaller than that of the second area, and the orthographic projection of the first area and the orthographic projection of the first polaroid on the plane perpendicular to the array substrate are overlapped, so that the reflection capability of light in the first polaroid in the first area is weaker than that in the second area.
Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic plan view of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line C-C of FIG. 1;
FIG. 3 is a schematic plan view of the light enhancing layer of FIG. 2;
FIG. 4 is a schematic plan view of another structure of the light-enhancing layer of FIG. 2;
FIG. 5 is a schematic view of another cross-sectional structure taken along the direction C-C in FIG. 1;
FIG. 6 is a schematic plan view of the light enhancement layer of FIG. 5;
FIG. 7 is a schematic plan view of another structure of the light-enhancing layer of FIG. 5;
FIG. 8 is a schematic view of a further cross-sectional configuration taken along the line C-C in FIG. 1;
FIG. 9 is a schematic view of a further cross-sectional configuration taken along the line C-C in FIG. 1;
FIG. 10 is a schematic view of another planar structure of the light-enhancing layer of FIG. 9;
FIG. 11 is a schematic view of a further cross-sectional configuration taken along the line C-C in FIG. 1;
FIG. 12 is a schematic view of a further cross-sectional configuration taken along the line C-C in FIG. 1;
fig. 13 is a schematic plan view of a display device according to an embodiment of the present invention;
FIG. 14 is a schematic cross-sectional view taken along line D-D of FIG. 13;
fig. 15 is another cross-sectional view taken along the direction D-D in fig. 13.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1, fig. 2 and fig. 3 in combination, the present invention provides a display panel, including: a display area AA, a non-display area BB arranged around the display area AA and at least one trough body 10; the display area AA comprises an abnormal edge A, the abnormal edge A comprises at least one section of sub-edge a, and the sub-edge a is sunken towards the inside of the display area AA to form a groove body 10;
the display panel comprises an array substrate 20, an opposite substrate 30, a first polarizer 40 and a light-enhancing layer 50; the array substrate 20 and the opposite substrate 30 are oppositely arranged, and the first polarizer 40 is located on one side of the array substrate 20 away from the opposite substrate 30; the light enhancing layer 50 is located on one side of the first polarizer 40 far away from the array substrate 20, the light enhancing layer 50 includes at least one first region M1, the first region M1 is disposed close to the cell body 10, and a portion of the light enhancing layer 50 except for the first region M1 is a second region M2; wherein the reflectivity of the first region M1 is less than the reflectivity of the second region M2; in a direction perpendicular to the plane of the array substrate 20, an orthogonal projection of the first region M1 overlaps an orthogonal projection of the first polarizer 40.
Specifically, the display area AA of the display panel is mainly used for displaying a picture, the portion of the display panel other than the display area AA is the non-display area BB, the non-display area BB does not display a picture, and generally, a circuit board, and other structures for driving and/or detecting picture display may be provided, and the positional relationship between the display area AA and the non-display area BB may be various. In this embodiment, the non-display area BB is disposed around the display area AA, and the special-shaped edge a of the display area AA includes at least one segment of sub-edge a, and the sub-edge a is recessed toward the inside of the display area AA, and at this time, in order to implement a narrow frame design of the display panel, that is, to reduce the width of the non-display area BB as much as possible to improve the screen occupation ratio, an edge portion of the non-display area BB corresponding to the sub-edge a is recessed toward the display area AA, so that the display panel may be formed with a groove 10. The number of the sub-edges a and the degree of the depression toward the inside of the display area AA may be set according to actual conditions, that is, the number and the shape of the trough body 10 may be set according to actual conditions, and the embodiment does not specifically limit this. Some functional devices can be installed in the tank body 10 to meet the diversified visual experience and use function requirements of users.
The array substrate 20 and the opposite substrate 30 are oppositely disposed, the opposite substrate 30 may be a transparent substrate or a color film substrate, or may be a combination of a transparent substrate and a color film substrate, and at this time, the display panel may have both an area for displaying a black-and-white picture and an area for displaying a color picture, which is beneficial to satisfying diversified visual experiences of users, but the embodiment does not specifically limit the present invention.
The display panel may be a non-light-emitting display panel, that is, the display panel needs to display a picture through a backlight, such as a liquid crystal display panel, and the like. The first polarizer 40 is located on one side of the array substrate 20 away from the opposite substrate 30, light of the backlight source can be converted into polarized light through the first polarizer 40, the liquid crystal layer LC is located between the array substrate 20 and the opposite substrate 30, the liquid crystal layer LC may include a plurality of liquid crystal molecules, the liquid crystal molecules may be located at least in the display area AA and prevented from overflowing by the provision of the blocking portion 11, and the material of the blocking portion 11 may be, but is not limited to, a plastic material; the polarized light may be twisted by 90 ° when passing through the liquid crystal layer LC, and in order to enable the picture in the display area AA to be displayed normally, it is usually necessary to dispose the second polarizer 41 on the side of the opposite substrate 30 away from the array substrate 20, and the polarization directions of the second polarizer 41 and the first polarizer 40 are perpendicular to each other, so that the polarized light can pass through the second polarizer 41. The size of the first polarizer 40 may be larger than that of the array substrate 20, so that the overlapping area with other structures in the display device may be increased, which is beneficial to improving the stability of the display panel.
The light intensifying layer 50 is located on one side of the first polarizer 40 away from the array substrate 20, a part of light of the backlight is converted into polarized light through the first polarizer 40 and is emitted, and the rest of light can be reflected to the light intensifying layer 50 and continues to be reflected under the action of the light intensifying layer 50, and when the emitting direction of the reflected light is the same as the polarization direction of the first polarizer 40, the light can be emitted from the first polarizer 40, so that the brightness of the picture display is improved, therefore, the utilization rate of the backlight can be effectively improved by arranging the light intensifying layer 50, and when the picture with the same brightness is displayed, the energy consumption is lower compared with that of a traditional display panel.
The light-intensifying layer 50 comprises a first region M1 arranged close to the slot 10, and in the direction perpendicular to the plane of the array substrate 20, the orthographic projection of the first region M1 overlaps with the orthographic projection of the first polarizer 40, so that the size of the light-intensifying layer 50 can be smaller than or equal to the size of the first polarizer 40, and the light-intensifying layer can meet the design requirement of a narrow frame of a display panel.
The part of the light-enhancing layer 50 except the first region M1 is the second region M2, and the reflectivity of the first region M1 is smaller than that of the second region M2, that is, the reflectivity of the first region M1 to light is weaker than that of the second region M2 to light, so that the reflection amount of the light reflected by the first polarizer 40 in the first region M1 is smaller than that in the second region M2, at this time, the light entering the cell body 10 from the side of the first polarizer 40 close to the cell body 10 can be effectively reduced, thereby effectively improving the side light leakage phenomenon of the first polarizer 40, reducing the influence of the side light leakage on the optical performance of the functional device installed in the cell body 10, and ensuring the effectiveness and stability of the functional device in the use process of the display apparatus.
It should be noted that, in order to more intuitively illustrate the technical solution of the present embodiment, other film layer structures are not illustrated in fig. 1 and fig. 2; the number of the first regions M1 and the shape of the edge thereof may be set according to the actual situation, and this embodiment does not specifically limit this, and fig. 3 only illustrates the case where the light-increasing layer 50 is provided with one first region M1, and the cross-sectional structure along the C-C direction in fig. 3 may be the same as the structure of the light-increasing layer 50 in fig. 2. In addition, fig. 2 only illustrates the relative position relationship between the trough 10 and the film layer structure of the display panel, and it is understood that the size, number and shape of the trough 10 may also be set according to actual situations, and this embodiment does not specifically limit this.
The first region M1 of the brightness enhancement film 50 may be entirely located in the non-display region BB or partially located in the display region AA, as long as the screen display in the display region AA is not affected, which is not particularly limited in this embodiment.
The display panel provided by the embodiment at least has the following technical effects:
through sunken formation cell body with the inside of sub-edge orientation display area, be favorable to improving display panel's screen and account for the ratio, and the cell body region can install the function device, can satisfy user diversified vision and functional requirement. The light transmittance of the first polaroid can be improved through the light enhancing layer, and the brightness of the picture display of the display panel is improved, so that the display effect is improved, and the energy consumption is reduced; on the other hand, the reflectivity of the first area of the light intensifying layer is smaller than that of the second area, and the orthographic projection of the first area and the orthographic projection of the first polaroid on the plane perpendicular to the array substrate are overlapped, so that the reflection capability of light in the first polaroid in the first area is weaker than that in the second area.
In some alternative embodiments, please refer to fig. 1, fig. 2 and fig. 4 in combination, the shape of the edge of the first region M1 is the same as the shape of the sub-edge a, so that the first region M1 may be disposed around the groove 10, and at this time, the light entering the groove 10 from the side of the first polarizer 40 may be further reduced, and in the planar structure of the light-enhancing layer 50 shown in fig. 4, the light reflected by the first polarizer 40 is reflected by the first region M1 before entering the groove 10 from the side thereof, and in the case that the reflectivity of the first region M1 is small, only a small amount of reflected light or even no reflected light enters the groove 10, so as to ensure the optical performance of the functional device installed in the groove 10.
It should be noted that, in order to more intuitively illustrate the technical solution of the present embodiment, a cross-sectional line along the C-C direction is also illustrated in fig. 4, and the cross-sectional structure along the cross-sectional line may be the same as the structure of the light enhancement layer 50 in fig. 2.
In some alternative embodiments, please refer to fig. 1, fig. 5 and fig. 6 in combination, the light-adding layer 50 includes a first light-adding film 51, and the first light-adding film 51 is attached to the first polarizer 40; in the first region M1, the first brightness enhancement film 51 is provided with at least one notch 52, and the notch 52 communicates with the tank 10.
In this embodiment, the light-adding layer 50 can improve the utilization rate of the backlight source by the first light-adding film 51, and the number and the shape of the notches 52 arranged in the first region M1 of the first light-adding film 51 can be set according to actual situations; meanwhile, the reflectivity of the first region M1 except for the notch 52 may be the same as that of the second region M2, or may be different from that of the second region M2, as long as the reflectivity of the whole first region M1 for light is ensured to be smaller than that of the second region M2, which is not limited in this embodiment.
The light reflected by the first polarizer 40 in the first region M1 except the notch 52 may be continuously reflected to the first polarizer 40, but the light is reflected at the notch 52 and is cut off, because the notch 52 is communicated with the slot 10, the light entering the slot 10 from the side of the first polarizer 40 close to the slot 10 may be effectively reduced, and the side light leakage phenomenon of the first polarizer 40 is improved.
In the manufacturing process, the part of the first brightness enhancement film 51 corresponding to the notch 52 can be cut off by a die cutting process; then, the first brightness enhancement film 51 is attached to the first polarizer 40; after the lamination is completed, the first brightness enhancement film 51 and the first polarizer 40 are aligned and die-cut with the part of the groove body 10, the operation is simple and convenient, extra manufacturing cost is not required to be increased, and the production efficiency of the display device is favorably ensured. It should be understood that the manufacturing process is only exemplary, and the first brightness enhancement film 51 and the first polarizer 40 may be manufactured by other manufacturing processes, which is not limited in this embodiment.
Alternatively, please refer to fig. 1, fig. 5 and fig. 7 in combination, the first region M1 of the first brightness enhancement film 51 is disposed as the notch 52, and the notch 52 is communicated with the slot body 10.
In this embodiment, the first region M1 of the first brightness enhancement film 51 can be cut off as the notch 52 by a die cutting process, and the edge shape of the first region M1 is reasonably set so that only the notch 52 on the side surface of the first brightness enhancement film 51 is adjacent to the slot body 10, and at this time, the light entering the slot body 10 from the side of the first polarizer 40 close to the slot body 10 can be further reduced.
In order to more intuitively illustrate the technical solution of the present embodiment, a cross-sectional line along the C-C direction is also illustrated in fig. 6 and 7, and the cross-sectional structure along the cross-sectional line may be the same as the structure of the first brightness enhancement film 51 in fig. 5.
Optionally, as shown in fig. 7, the first brightness enhancement film 51 is a high-polarization conversion film.
In this embodiment, the Advanced Polarization Conversion Film (APCF) can not only be viewed from the front as a prism sheet, but also effectively increase the brightness of an oblique viewing angle by using the Polarization property, so that the utilization rate of the backlight source can be greatly increased to increase the brightness of the AA picture displayed in the display area. Meanwhile, the highly polarized light conversion film is thinner than a common brightness enhancement film, and the hue change can be controlled more effectively.
Optionally, please refer to fig. 1 and 8 in combination, a filling portion 53 is disposed in the gap 52, and a reflectivity of the filling portion 53 is smaller than a reflectivity of the first brightness enhancement film 51; in a direction perpendicular to the plane of the array substrate 20, an orthogonal projection of the filling portion 53 overlaps an orthogonal projection of the first polarizer 40.
In this embodiment, the filling portion 53 is provided in the notch 52 of the first brightness enhancement film 51, which is beneficial to increase the overlapping area between the first brightness enhancement film 51 and other structures in the display device, so that the first brightness enhancement film 51 can be effectively prevented from peeling off from the structure, and the stability of the display panel is improved.
The size of the filling part 53 may be set according to practical situations as long as it is satisfied that the filling part 53 and the first polarizer 40 overlap between orthogonal projections in a direction perpendicular to the plane of the array substrate 20; meanwhile, in order to reduce the light entering the cell body 10 from the side of the first polarizer 40 close to the cell body 10, the reflectivity of the filling portion 53 should be smaller than the reflectivity of the first brightness enhancement film 51, and the filling portion 53 may be a thin film material attached to the first polarizer 40 or an adhesive material, but this embodiment is not limited to this.
In some alternative embodiments, please refer to fig. 1 and fig. 9 in combination, the light-adding layer 50 includes a first light-adding film 51, and the first light-adding film 51 is attached to the first polarizer 40; in the first region M1, a light-shielding coating 60 is provided between the first brightness enhancement film 51 and the first polarizer 40.
In this embodiment, the light-adding layer 50 can still improve the utilization ratio of the backlight source through the first light-adding film 51, but the first light-adding film 51 is provided with the light-shielding coating 60 between the position of the first region M1 and the first polarizer 40, and due to the existence of the light-shielding coating 60, the part of the light reflected by the first polarizer 40 in the first region M1 except the light-shielding coating 60 can be continuously reflected to the first polarizer 40, but the reflection of the light at the light-shielding coating 60 is weakened, so that the light leakage from the side of the first polarizer 40 close to the cell body 10 into the cell body 10 can be effectively reduced, and the side phenomenon of the first polarizer 40 is improved.
In the manufacturing process, the light-shielding coating 60 can be coated on the first bright enhancement film 51 at the corresponding position of the first region M1; then, the first brightness enhancement film 51 coated with the shading coating 60 is attached to the first polarizer 40; after the lamination is completed, the first brightness enhancement film 51 and the first polarizer 40 are aligned and die-cut with the part of the groove body 10, so that the operation is simple and convenient, and the production efficiency of the display device is favorably ensured. It should be understood that the manufacturing process is only exemplary, and the first brightness enhancement film 51 and the first polarizer 40 may be manufactured by other manufacturing processes, which is not limited in this embodiment.
The coating shape and the coating size of the light shielding coating 60 in the first region M1 of the first bright enhancement film 51 can be set according to actual conditions; meanwhile, the material of the light blocking coating 60 may be various, and this embodiment does not specifically limit this.
It should be noted that, in order to more intuitively illustrate the technical solution of the present embodiment, the light-shielding coating 60 in fig. 9 and 11 is set to be thicker, but in an actual manufacturing process, the coating thickness of the light-shielding coating 60 is usually thinner, and the flatness of the first brightness enhancement film 51 on the surface of the first polarizer 40 is not substantially affected.
Optionally, please refer to fig. 9 and fig. 10 in combination, the light-shielding coatings 60 are disposed in the first regions M1 of the first brightness enhancement film 51, that is, the light-shielding coatings 60 are coated on the whole first region M1, and the edge shapes of the first regions M1 are reasonably set, so that the light-shielding coatings 60 are disposed on the adjacent side surfaces of the first brightness enhancement film 51 and the slot 10 and adjacent to the slot 10, and at this time, the light entering the slot 10 from the side of the first polarizer 40 close to the slot 10 can be further reduced.
In order to more intuitively illustrate the technical solution of the present embodiment, a cross-sectional line along the C-C direction is illustrated in fig. 10, and the cross-sectional structure along the cross-sectional line may be the same as the structure of the first brightness enhancement film 51 in fig. 9.
Optionally, as shown in fig. 9 and fig. 10, the light-shielding coating 60 is a black ink coating, and the black ink coating has a light-absorbing effect, so that the reflection of the light reflected by the first polarizer 40 at the light-shielding coating 60 in the first region M1 is reduced or even cut off, and the side light leakage phenomenon of the first polarizer 40 is further improved. In addition, the black ink coating is usually used to shield the corresponding area in the manufacturing process of the display device, that is, the black ink coating is used for the light shielding coating 60, which is beneficial to reducing the production cost of the display device.
Optionally, referring to fig. 1 and fig. 11, in a direction perpendicular to the plane of the array substrate 20, an orthographic projection of the light-shielding coating 60 overlaps with an orthographic projection of at least a portion of the second region M2, at this time, the light-shielding coating 60 located in the second region M2 may assist the light-shielding coating 60 in the first region M1 to reduce light entering the slot 10 from the side of the first polarizer 40, further improve the side light leakage phenomenon of the first polarizer 40, and simultaneously, facilitate reducing the size of the first region M1 to meet the narrow frame design requirement of the display panel.
Optionally, please refer to fig. 1 and fig. 12 in combination, in the case that the overlapping area between the first bright enhancement film 51 and other structures in the display device is not considered, the first bright enhancement film 51 may further be provided with a notch 52, and the notch 52 may not be communicated with the slot body 10, or may be communicated with the slot body 10, and the number and the shape of the notches 52 may be set according to the actual situation, but the present embodiment specifically limits the same.
The invention also provides a display device which comprises the display panel provided by the invention.
Referring to fig. 13, a display device 200 of the present embodiment includes the display panel 100 according to any one of the above embodiments of the present invention. Fig. 13 illustrates the display device 200 by taking a mobile phone as an example. It should be understood that the display device 200 provided in the embodiment of the present invention may also be a tablet computer, a television, a vehicle-mounted display, or other display devices with a display function, and the present invention is not limited thereto. The display device provided in the embodiment of the present invention has the beneficial effects of the display panel provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display panel in each of the above embodiments, which is not repeated herein.
Optionally, as shown in fig. 13, the display device 200 further includes a photosensitive device 70, and the photosensitive device 70 is disposed in the slot 10 of the display panel 100.
In this embodiment, the photosensitive device 70 is located in the tank 10, and the display panel provided based on any of the above embodiments has a better side light leakage improvement effect, so that the display device 200 can effectively ensure the optical performance of the photosensitive device 70 in the use process. Taking the photosensitive device 70 as a camera as an example, in the process of taking a picture or a video, the camera does not easily enter the tank 10 due to light leakage from the side surface of the display panel 100, so that the phenomenon of light spots and the like does not exist in the taken picture or video, and the visual effect of the taking is affected. Of course, the photosensitive device 70 may also be other devices sensitive to light, and this embodiment does not limit this to any particular limitation.
Optionally, as shown in fig. 13, functional devices other than the photosensitive device 70, such as an earpiece 71, a fingerprint recognition touch key, a speaker, and the like, may be further installed in the tank 10 to meet the diversified visual experience and use function requirements of the user, but this embodiment is not particularly limited to this, and fig. 13 only illustrates the earpiece 71 as an example.
Optionally, as shown in fig. 13 and fig. 14, the display device 200 further includes a backlight module 300, and a light-shielding tape 80 is disposed between the backlight module 300 and the display panel 100.
In this embodiment, the display device 200 provides a backlight source for the display panel 100 through the backlight module 300, so that the display panel 100 can display a picture. The light-shielding tape 80 can shield the light at the edge of the backlight module 300, so as to prevent the backlight module 300 from affecting the display effect of the display panel 100 due to light leakage at the edge.
The backlight module 300 may be a Cold Cathode Fluorescent Lamp (CCFL) backlight module, a Light Emitting Diode (LED) backlight module, and the like, which is not limited in this embodiment.
It should be noted that the display panel 100 of the present embodiment may be the display panel provided in any of the above embodiments, and fig. 14 only illustrates the display panel 100 shown in fig. 5; meanwhile, in order to more intuitively illustrate the technical solution of the present embodiment, other film layer structures are not illustrated in fig. 14.
Optionally, as shown in fig. 13 and fig. 15, the backlight module 300 includes a back frame 90, and a light guide plate 91 and an optical film set 92 disposed in the back frame 90; the optical film group 92 is located on one side of the light guide plate 91 close to the display panel 100.
In this embodiment, the back frame 90 is used to accommodate the light guide plate 91, the optical film set 92 and other components, in order to limit the light guide plate 91 in the back frame 90, a rubber frame 93 is usually further disposed between the light guide plate 91 and the side wall of the back frame 90, and when the rubber frame 93 is thick, the backlight generated by the backlight module 300 is easy to leak from the side surface of the rubber frame 93, in order to prevent the light leaking from the side surface of the rubber frame 93 from affecting the photosensitive device 70 in the slot 10, the black rubber frame 93 may be used, and of course, a mode of coating a light shielding coating on the side surface of the rubber frame 93 may be used, but the present embodiment does not specifically limit this.
The optical film set 92 is located on one side of the light guide plate 91 close to the display panel 100, so that the light emitted from the light guide plate 91 can be processed, the intensity of the light emitted into the first brightness enhancement film 51 and the first polarizer 40 is relatively high and uniform, and the display effect of the display panel 100 is favorably improved. Meanwhile, the optical film set 92 may be a single-layer structure, or a multi-layer structure, for example, two brightness enhancement films and a diffusion film are included, wherein the brightness enhancement films are used for improving the front gray scale of the light, and the diffusion film is used for atomizing the light, but the embodiment is not limited thereto.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:
through sunken formation cell body with the inside of sub-edge orientation display area, be favorable to improving display panel's screen and account for the ratio, and the cell body region can install the function device, can satisfy user diversified vision and functional requirement. The light transmittance of the first polaroid can be improved through the light enhancing layer, and the brightness of the picture display of the display panel is improved, so that the display effect is improved, and the energy consumption is reduced; on the other hand, the reflectivity of the first area of the light intensifying layer is smaller than that of the second area, and the orthographic projection of the first area and the orthographic projection of the first polaroid on the plane perpendicular to the array substrate are overlapped, so that the reflection capability of light in the first polaroid in the first area is weaker than that in the second area.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (12)

1. A display panel, comprising: a display area and a non-display area disposed around the display area;
the display area comprises a special-shaped edge, the special-shaped edge comprises at least one section of sub-edge, and the sub-edge is sunken towards the inside of the display area to form a groove body;
the display panel comprises an array substrate, an opposite substrate, a first polarizer and a light intensifying layer;
the array substrate and the opposite substrate are oppositely arranged, and the first polarizer is positioned on one side of the array substrate, which is far away from the opposite substrate;
the light enhancing layer is positioned on one side of the first polarizer, which is far away from the array substrate, and comprises at least one first area, the first area is close to the groove body, and the part of the light enhancing layer, except the first area, is a second area; wherein the reflectivity of the first region is less than the reflectivity of the second region;
in the direction perpendicular to the plane of the array substrate, the orthographic projection of the first area and the orthographic projection of the first polarizer are overlapped.
2. The display panel according to claim 1,
the shape of the first zone edge is the same as the shape of the sub-edge.
3. The display panel according to claim 1,
the light enhancement layer comprises a first light enhancement film, and the first light enhancement film is attached to the first polarizer;
in the first area, the first brightness enhancement film is provided with at least one notch, and the notch is communicated with the groove body.
4. The display panel according to claim 3,
a filling part is arranged in the gap, and the reflectivity of the filling part is smaller than that of the first bright enhancement film;
in the direction perpendicular to the plane of the array substrate, the orthographic projection of the filling part and the orthographic projection of the first polarizer are overlapped.
5. The display panel according to claim 1,
the light enhancement layer comprises a first light enhancement film, and the first light enhancement film is attached to the first polarizer;
in the first area, a shading coating is arranged between the first brightness enhancement film and the first polarizer.
6. The display panel according to claim 5,
in a direction perpendicular to the plane of the array substrate, an orthographic projection of the light shielding coating and an orthographic projection of at least part of the second area are overlapped.
7. The display panel according to claim 5,
the shading coating is a black ink coating.
8. The display panel according to claim 3 or 5,
the first brightness enhancement film is a high-polarization conversion film.
9. A display device characterized by comprising the display panel according to any one of claims 1 to 8.
10. The display device according to claim 9,
the display device further comprises a backlight module, and a shading adhesive tape is arranged between the backlight module and the display panel.
11. The display device according to claim 10,
the backlight module comprises a back frame, a light guide plate and an optical film group, wherein the light guide plate and the optical film group are arranged in the back frame;
the optical film group is positioned on one side of the light guide plate close to the display panel.
12. The display device according to claim 9,
the display device further comprises a photosensitive device, and the photosensitive device is arranged in the groove body of the display panel.
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CN113193136A (en) * 2021-04-06 2021-07-30 深圳市华星光电半导体显示技术有限公司 Display device and preparation method thereof
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