CN107272250A - Display panel and display device - Google Patents
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- CN107272250A CN107272250A CN201710552997.5A CN201710552997A CN107272250A CN 107272250 A CN107272250 A CN 107272250A CN 201710552997 A CN201710552997 A CN 201710552997A CN 107272250 A CN107272250 A CN 107272250A
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- 239000000758 substrate Substances 0.000 claims abstract description 102
- 230000010287 polarization Effects 0.000 claims abstract description 29
- 238000002834 transmittance Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 6
- 238000002310 reflectometry Methods 0.000 abstract description 20
- 230000002829 reductive effect Effects 0.000 abstract description 14
- 239000010410 layer Substances 0.000 description 151
- 238000010586 diagram Methods 0.000 description 20
- 239000004973 liquid crystal related substance Substances 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 9
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000004381 surface treatment Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001579 optical reflectometry Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
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Abstract
The invention discloses a display panel and a display device, which comprise a display substrate, a first polarizing layer positioned on the light emergent side of the display substrate, and at least one functional film layer positioned between the first polarizing layer and the display substrate; at least one interface of each film layer is an uneven interface with a plurality of strip-shaped concave-convex ridges arranged in parallel; the edge direction of the strip-shaped concave-convex edge on the uneven interface positioned at the outermost side is perpendicular to the polarization direction of the first polarizing layer, the strip-shaped concave-convex edge is provided with an inclined plane extending along the edge direction, and the included angle between the inclined plane and the plane surface is the Brewster angle of the light ray inwards entering the uneven interface. By adopting the angle setting, when the ambient light vertically enters the display panel, the ambient light enters the display panel through the uneven interface at the Brewster angle, the ambient light passing through the first polarizing layer is converted into linearly polarized light, and the reflected light of the vertically incident ambient light on the interface can be eliminated according to the Brewster's law, so that the surface reflectivity of the display panel is reduced.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the continuous development of display technology, various types of display devices are developed, and currently, the mainstream display screens mainly include liquid crystal display screens and organic light emitting diode display screens. Compared with an organic light emitting diode Display screen, a Liquid Crystal Display (LCD) has a lower manufacturing cost, but the LCD cannot emit light autonomously, and a backlight module needs to be arranged. The Organic Light-Emitting Diode (OLED for short) is made of self-luminous material, does not need to be provided with a backlight module, and has wide viewing angle and high response speed.
However, no matter which kind of display screen is manufactured, the film laminated structure made of multiple materials is inevitably adopted, the refractive indexes of different films are different, external environment light can be reflected and refracted between the layers when the external environment light enters the display screen, reflection accumulation is generated between the layers due to the difference of the refractive indexes, the reflectivity of the environment light on the surface of the display panel is higher, when the display screen displays, the contrast of a display picture can be reduced due to the part of the reflection light, and therefore the viewing experience is reduced.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for reducing the surface reflectivity of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including: the display substrate comprises a display substrate, a first polarizing layer and at least one functional film layer, wherein the first polarizing layer is positioned on the light emergent side of the display substrate; wherein,
the surface of one side of the first polarizing layer, which is far away from each functional film layer, is a plane;
the first polarizing layer, each functional film layer and the display substrate are mutually attached, and at least one interface is an uneven interface with a plurality of parallel strip-shaped concave-convex ribs; the edge direction of the strip-shaped concave-convex edge is parallel to the plane surface of the first polarizing layer;
the edge direction of the strip-shaped concave-convex edge on the uneven boundary surface farthest away from the display substrate is perpendicular to the polarization direction of the first polarizing layer, the strip-shaped concave-convex edge is provided with an inclined surface extending along the edge direction, and the included angle between the inclined surface and the flat surface of the first polarizing layer is the Brewster angle of light entering the uneven boundary surface along the first direction;
the first direction is an incident direction of light rays to the interior of the display panel through the first polarizing layer.
In a second aspect, an embodiment of the invention provides a display device, including any one of the display panels described above.
The invention has the following beneficial effects:
the display panel and the display device provided by the embodiment of the invention comprise a display substrate, a first polarizing layer positioned on the light emergent side of the display substrate, and at least one functional film layer positioned between the first polarizing layer and the display substrate; the surface of one side of the first polarizing layer, which is far away from each functional film layer, is a plane; the first polarizing layer, the functional film layers and the display substrate are mutually attached, and at least one interface is an uneven interface with a plurality of parallel strip-shaped concave-convex ridges; the edge direction of the strip-shaped concave-convex edge is parallel to the plane surface of the first polarizing layer; the uneven interface farthest away from the display substrate is provided with a strip-shaped concave-convex edge, the edge direction of the strip-shaped concave-convex edge is perpendicular to the polarization direction of the first polarizing layer, the strip-shaped concave-convex edge is provided with an inclined plane extending along the edge direction, and the included angle between the inclined plane and the plane surface of the first polarizing layer is the Brewster angle of light entering the uneven interface along the first direction; the first direction is an incident direction of light rays to the interior of the display panel through the first polarizing layer. The inclined plane on the uneven interface positioned on the outermost side is set to form an included angle with the flat interface, which is the Brewster angle of light incident inwards on the interface, so that when the ambient light vertically enters the display panel, the ambient light passing through the uneven interface can be incident at the Brewster angle, the ambient light passing through the first polarizing layer is converted into linearly polarized light, the reflected light of the vertically incident ambient light on the uneven interface can be eliminated according to the Brewster law, and the surface reflectivity of the display panel is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is an optical path diagram of an uneven interface provided by an embodiment of the present invention;
fig. 3 is a second schematic structural diagram of a display panel according to an embodiment of the invention;
fig. 4 is a third schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 5 is a fourth schematic view illustrating a display panel according to an embodiment of the present invention;
FIG. 6 is a second optical path diagram of an uneven interface according to an embodiment of the present invention;
FIG. 7a is a schematic cross-sectional view of a strip-shaped concave-convex rib according to an embodiment of the present invention;
FIG. 7b is a second schematic cross-sectional view of the strip-shaped concave-convex rib provided in the embodiment of the present invention;
FIG. 8a is a schematic perspective view of a strip-shaped concave-convex rib according to an embodiment of the present invention;
FIG. 8b is a schematic top view of the strip-shaped concave-convex rib according to the embodiment of the present invention;
FIG. 9a is a second schematic diagram illustrating a top view of the strip-shaped concave-convex rib according to the embodiment of the present invention;
FIG. 9b is a third schematic cross-sectional view of the strip-shaped concave-convex rib provided in the embodiment of the present invention;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the invention;
fig. 11 is a second schematic structural diagram of a display device according to an embodiment of the invention;
fig. 12 is a third schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a display panel and a display device, which are used for reducing the surface reflectivity of the display panel.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, the present invention is further described with reference to the accompanying drawings and examples. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention. The drawings of the present invention are only for illustrating the relative positional relationship, the layer thicknesses of some parts are exaggerated in a drawing manner for easy understanding, and the layer thicknesses in the drawings do not represent the proportional relationship of the actual layer thicknesses.
It should be noted that in the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Reference throughout the specification and claims to one element being "on" side of another element includes the case where the element is adjacent to or not adjacent to the other element. Reference throughout this specification and claims to one element being on the "side" away from another element includes reference to the element being adjacent to or not adjacent to the other element. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
Hereinafter, a display panel and a display device according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. The thicknesses and shapes of the respective components in the drawings do not reflect the true scale of the display device, and are merely intended to schematically illustrate the present invention.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and as shown in fig. 1, the display panel according to the embodiment of the present invention includes: the display device comprises a display substrate 11, a first polarizing layer 12 positioned on the light emitting side of the display substrate 11, and at least one functional film layer 13 positioned between the first polarizing layer 12 and the display substrate 11.
Wherein, the surface of the first polarizing layer 12, which is away from one side of each functional film layer 13, is a plane; the first polarizing layer 12, each functional film layer 13 and the display substrate 11 are attached to each other, and at least one interface is an uneven interface with a plurality of parallel strip-shaped concave-convex ribs 100.
Further, the rib direction of the strip-shaped concave-convex rib 100 is parallel to the flat surface of the first polarizing layer 12, the rib direction of the strip-shaped concave-convex rib 100 at the uneven interface farthest from the display substrate 11 is perpendicular to the polarization direction of the first polarizing layer 12, and the strip-shaped concave-convex rib 100 has an inclined plane 101 extending in the rib direction, and the inclined plane 101 forms an angle with the flat surface of the first polarizing layer 12, which is the brewster angle at which light is incident to the uneven interface in the first direction. The first direction is an incident direction of light to the inside of the display panel through the first polarizing layer 12.
In practical applications, the display panel may generally include a display substrate for displaying images and a film layer with optical performance or other functions located on the light emitting side of the display substrate, where the film layer is essential for displaying images on the display substrate, so as to improve the display effect of the display substrate and protect the display substrate to some extent. The reason is that the surface of the display substrate is provided with a plurality of film layers, and each film layer is made of different materials, so that the refractive index is different, and the reflection light generated on the surface of each adjacent film layer has a coherent phase phenomenon when the thickness and the wavelength of the film layer meet a certain relation, so that the surface reflectivity of the display panel is higher, and the contrast of the display panel is influenced. In view of this, in the display panel provided in the embodiment of the present invention, the interface of at least one film layer is subjected to surface treatment, and the intensity of the reflected light of the ambient light on the surface is reduced to zero by combining with the law of brewster's law.
In particular, brewster's law states that: when light rays are incident on two material interfaces with different refractive indexes, the reflected light rays are linearly polarized light under a specific incident angle, the vibration direction of the reflected light rays is vertical to the incident plane, the reflected light rays are vertical to the refracted light rays, and the specific incident angle is the Brewster angle. According to the brewster's law, if the incident light to the interface of different materials is linearly polarized light with the polarization direction parallel to the incident plane, the intensity of the reflected light is zero when the incident angle is the brewster angle. Applying the above theory to the present invention, since the first polarizing layer 12 is disposed in the display panel, the incident ambient light can be converted into linearly polarized light after being acted by the first polarizing layer 12, and as long as the polarization direction of the linearly polarized light is parallel to the incident plane and enters the interface of different materials at the brewster angle, the reflectivity of the ambient light at the interface can be reduced.
As shown in fig. 1, two functional film layers 13 are included between the display substrate 11 and the first polarizing layer 12, and an interface between the functional film layer 13 on the upper side and the first polarizing layer 12 is an uneven interface farthest from the display panel 11. The polarization direction of the first polarizing layer 12 is the horizontal direction as shown by the double arrow in fig. 1, and the ambient light is converted into linearly polarized light having the horizontal polarization direction after passing through the first polarizing layer 12. Since reflection of ambient light incident perpendicularly to the display panel is a major consideration in practical applications, a plurality of strip-shaped concave-convex ribs 100 extending in a direction perpendicular to the polarization direction (horizontal direction in this embodiment) of the first polarizing layer 12 are provided at the interface between the first polarizing layer 12 and the functional film layer 13 in order to allow light incident perpendicularly to the display panel to enter the interface at the brewster angle, and the polarization direction of linearly polarized light in the incident plane is the horizontal direction parallel to the incident plane, thereby reducing the intensity of reflected light to zero.
Further, how to arrange the strip-shaped concave-convex ridges 100 of the interface to ensure that the incident angle of the light rays perpendicularly incident on the display panel at the interface is Brewster's angle is a significant consideration of the present invention. For convenience of illustration, the sectional patterns of the two strip-shaped concave-convex ridges 100 at the interface of the first polarizing layer 12 and the functional film layer 13 are partially enlarged, and fig. 2 shows a partial optical path diagram of the uneven interface, as shown in fig. 2, the strip-shaped concave-convex ridges 100 have inclined surfaces 101 extending in the edge direction. After passing through the first polarizing layer 12, the ambient light is converted into linearly polarized light with a polarization direction in the horizontal direction, the linearly polarized light enters the inclined plane 101 as an incident light ray a1, and is reflected and refracted on the inclined plane, the reflected light ray is denoted as a2, and the refracted light ray is denoted as a 3; the angle of incidence and the angle of reflection are denoted respectively by p1And ρ2. Since light ray a1 needs to be incident on inclined plane 101 at the Brewster's angle to achieve the above-mentioned reduction of reflectivity, it depends on the incident angle ρ1Angle of inclination rho of the opposite angle and inclined plane3The complementary relation among the equal angles can determine that the angles satisfy the relation: rho1＝ρ2＝ρ3. That is to say when the inclination angle ρ of the inclined plane 1013That is, the included angle between the inclined plane 101 and the flat surface of the first polarizing layer 12 is equal to the brewster angle of the light incident from the first polarizing layer 12 to the functional film layer 13, the light ray a1 can be made to enter the inclined plane 101 at the brewster angle, so as to reduce the reflectivity at the inclined plane 101.
Further, the rootAccording to the principle that the light path is reversible, when the light enters the substance interface in the direction opposite to the original reflected light, the light is necessarily reflected in the direction opposite to the original incident direction. For convenience of distinguishing between the descriptions, the light rays are illustrated in fig. 2 as being divided into two groups. The left optical path diagram in fig. 2 illustrates the optical path of the light ray a1 reflected by the inclined plane 101 after being incident perpendicularly on the first polarizing layer 12; the right-hand optical path in fig. 2 illustrates an optical path reflected by the inclined surface 101 against the incident of the original reflected light ray a 2. The right-hand diagram in fig. 2 illustrates the light path of the reflected light rays incident perpendicularly to the human eye. The reflected ray a1 ' of the ray a2 ' directed to the inclined plane 101 against the original reflected ray a2 is a reverse ray of the left ray a1, and the incident angle ρ of the ray a2 ' is2' angle of reflection with ray a2 ρ2Equal, angle of reflection ρ for ray a11' incident angle p with ray a11Are equal. According to the reversible principle of the optical path, the reflected light rays a 1' emitted outward perpendicularly are all at an incident angle ρ2'the ray a 2' is reflected, and p2’＝ρ2＝ρ1＝ρ3Therefore, the light ray a2 ' is incident on the inclined plane 101 at the brewster angle, and the polarization direction of the light ray is parallel to the horizontal direction of the incident plane, the reflected light ray a1 ' is only linearly polarized with the polarization direction perpendicular to the incident plane, and there is no vibration component perpendicular to the incident plane in the incident light, so the intensity of the reflected light ray a1 ' is also reduced to zero. When a user views the display panel, the user is usually located right in front of the display panel, that is, the light of the display panel received by the user is mostly the light in the direction of the light ray a1 ', and according to the above description, there is no reflected light of the ambient light in the direction of the light ray a1 ', that is, the incident light ray a2 ' of the reflected light ray a1 ' that may be vertically incident to the human eye enters the inclined plane 101 at the brewster angle, so the reflected light ray a1 ' cannot be generated, the influence of the reflected light generated by the ambient light on the light emitted by the display panel is reduced, thereby the contrast of the display screen is improved, and the viewing experience of the user is improved.
In a specific implementation, the display panel provided in the embodiment of the present invention may be a liquid crystal display panel, and the structure of the display panel is as shown in fig. 3, fig. 3 is a second schematic structural diagram of the display panel provided in the embodiment of the present invention, and the display substrate 11 may include an array substrate 111 and a color filter substrate 112 that are opposite to each other; at least one functional film layer 13 is included between the first polarizer layer 12 and the color filter substrate 112. In practical applications, the functional film layer 13 may include a protective layer, a high-transmittance film layer, a shielding layer, or the like, and may be flexibly set according to needs.
The following will specifically describe some film layer processing cases of the liquid crystal display panel by taking the above functional film layer as a shielding layer as an example. The shielding layer is denoted by 13' in the drawings corresponding to the following description; the polarization directions of the first polarizing layers 12 are all horizontal, and the extending directions of the strip-shaped concave-convex ribs are all perpendicular to the polarization direction of the first polarizing layers 12; the flat surface of the first polarizing layer 12 is the upper surface.
In an implementable manner, as shown in fig. 3, the interface of the first polarizing layer 12 and the shielding layer 13' may be an uneven interface; the uneven interface comprises a plurality of first elongated concave-convex ribs 200, the inclined plane of the first elongated concave-convex ribs 200 extending along the edge direction is a first inclined plane 201, and the included angle between the first inclined plane 201 and the flat surface of the first polarizing layer 12 is the brewster angle of the light incident from the first polarizing layer 12 to the shielding layer 13'.
The principle of the ambient light reflectivity reduction at the interface between the first polarizer layer 12 and the shielding layer 13' in this embodiment is similar to the above principle, and is not described herein again. In practical applications, the shielding layer 13' may be made of a transparent conductive material, such as Indium Tin Oxide (ITO), aluminum-doped zinc oxide (AZO), and the like. The shielding layer 13' made of transparent conductive material can shield unwanted static or unwanted charges generated by the display substrate, and can not block the light emitted from the display substrate. The surface of the shielding layer 13' on the side away from the first substrate 112 is surface-treated to form a plurality of first concave-convex ridges 200 with the extending directions parallel to each other. After the shielding layer 13 'is manufactured, a polarizing adhesive is coated on the surface of the shielding layer 13', the polarizing material is attached to the concave-convex surface of the shielding layer 13 'to form an uneven interface between the first polarizing layer 12 and the shielding layer 13', and finally the polarizing material is cured to form the first polarizing layer 12 with the polarization direction being the horizontal direction.
In another implementation manner, as shown in fig. 4, which is a third schematic structural diagram of the display panel provided in the embodiment of the present invention, the display substrate 11 includes an array substrate 111 and a color filter substrate 112 that are oppositely disposed, and a liquid crystal layer (not shown in fig. 4) is further included between the array substrate 111 and the color filter substrate 112. The color filter substrate comprises a first substrate 1121, and one side of the color filter substrate 112, which is attached to the shielding layer 13', is the first substrate 1121; the interface between the shielding layer 13' and the first substrate 1121 may be an uneven interface; the uneven interface comprises a plurality of second strip-shaped concave-convex ribs 300, the inclined plane extending along the edge direction of the second strip-shaped concave-convex ribs 300 is a second inclined plane 301, and the included angle between the second inclined plane 301 and the flat surface of the first polarizing layer 12 is the brewster angle of the light incident from the shielding layer 13' to the first substrate 1121.
The principle of the ambient light reflectivity reduction at the interface between the shielding layer 13' and the first substrate 1121 is similar to the above principle, and is not described herein again. In practical applications, the surface of the first substrate 1121 on the side away from the array substrate 111 may be subjected to a surface treatment to form a plurality of second strip-shaped concave-convex ribs 300 parallel to each other, and then the surface of the first substrate 1121 is coated with a transparent conductive material, so that the transparent conductive material is attached to the surface of the first substrate 1121 to form the above-mentioned uneven interface, and after the transparent conductive material is cured, the shielding layer 13' is formed.
Since the intensity of the reflected light of the normally incident ambient light at the uneven interface is reduced, the phenomenon that the reflection is increased strongly at the even interface still exists. Therefore, in order to reduce the reflectivity of the normally incident ambient light between the layers, it is preferable to set the interface where the light is incident first to be an uneven interface, for example, in the above two embodiments, it is preferable to set the interface between the first polarizing layer 12 and the shielding layer 13' to be an uneven interface. This reduces the reflectance of the interface on which the ambient light first enters, and changes the direction of incidence when the ambient light enters the other interfaces, thereby preventing strong reflection in the normal viewing angle direction.
As another practical manner, as shown in fig. 5, fig. 5 is a fourth schematic structural diagram of the display panel provided in the embodiment of the present invention, and one side of the color filter substrate 112 attached to the shielding layer 13 ' still includes the first substrate 1121, which is different from the display panel shown in fig. 4 in that the interface between the first polarizing layer 12 and the shielding layer 13 ' and the interface between the shielding layer 13 ' and the first substrate 1121 are both uneven interfaces.
Wherein, the interface between the first polarizing layer 12 and the shielding layer 13' includes a plurality of third strip-shaped concave-convex ribs 400, the inclined plane of the third strip-shaped concave-convex ribs 400 extending along the edge direction is a third inclined plane 401, and the included angle between the third inclined plane 401 and the flat surface 12 of the first polarizing layer is θ1(ii) a The interface between the shielding layer 12 and the first substrate 1121 includes a plurality of fourth concave-convex ribs 500, the inclined plane of the fourth concave-convex ribs 500 extending along the edge direction is a fourth inclined plane 501, and the included angle between the fourth inclined plane 501 and the plane surface of the first polarizing layer 12 satisfies the following formula:
α＝2θ1+θ2-90°；
wherein α is the angle between the fourth inclined plane 501 and the plane surface of the first polarizing layer 12, θ1The Brewster's angle, θ, at which light is incident from the first polarizing layer 12 to the shielding layer 122Is the brewster angle at which light is incident from the shielding layer 12 to the first substrate 1121.
In this embodiment, the light path of the light incident on the two uneven interfaces is as shown in fig. 6, wherein the intensity of the reflected light b2 of the light b1 of the ambient light incident on the display panel perpendicularly when the ambient light is incident on the third inclined plane 401 is reduced to zero, and the included angle between the third inclined plane 401 and the first polarizing layer 12 is equal to the included angle α ' shown in fig. 6, which is equal to the brewster angle of the light incident from the first polarizing layer 12 to the shielding layer 13 ', the reflectivity between the first polarizing layer 12 and the shielding layer 13 ' and the surface reflectivity can be reduced, and the principle is similar to that of the incident light a1 and the reflected light a2, and further description is omitted. If the refracted light ray b3 of the light ray b1 is incident on the fourth inclined surface 501 to achieve the effect of reducing the reflectivity, the light ray b3 needs to be incident on the fourth inclined surface 501 at the brewster angle, and the inclination angle α of the fourth inclined surface needs to be designed on the premise.
Specifically, if the incident angle of the light ray b1 incident on the third inclined surface 401 is θ1Angle of refraction theta3(ii) a The incident angle of refracted ray b3 incident on the fifth inclined plane is theta2Then, according to the complementary relationship between the angles, the following relationship can be obtained:
α+90°-θ2＝θ1+90°-θ3；
according to the brewster's law, the refraction angle and the reflection angle are complementary, and the incidence angle and the reflection angle are equal, so the following relations can be obtained:
θ1+θ3＝90°；
therefore, the inclination angle α of the fourth inclined plane 501, i.e. the included angle between the fourth inclined plane 501 and the upper surface of the first polarizing layer 12 is α ═ 2 θ1+θ2At 90 deg., the intensity of the reflected light ray b4 can be reduced to zero, so as to reduce the reflectivity of the ambient light at two uneven interfaces, and the effect of reducing the reflectivity of the ambient light surface is better than that of the above case where the uneven interfaces are separately arranged.
In order to further reduce the reflectivity of the ambient light unevenness boundary, the inclined surface of the strip-shaped concave-convex rib in the unevenness boundary may be configured to have a symmetrical cross-section, as shown in fig. 7a and 7b, which are two schematic cross-sectional views of the strip-shaped concave-convex rib, respectively, and the cross-sectional pattern of the strip-shaped concave-convex rib 100 perpendicular to the plane surface of the first polarizing layer 12 is symmetrical with respect to the normal OO' of the plane surface of the first polarizing layer 12. As shown in FIG. 7a, the cross-sectional shape of the strip-shaped concave-convex rib 100 may be an isosceles triangle, and the base angle of the isosceles triangle may be set to the Brewster's angle at which the light is incident on the interface; alternatively, as shown in FIG. 7b, the cross-sectional shape of the strip-shaped concave-convex rib 100 may be an isosceles trapezoid, and the base angle of the isosceles trapezoid may be set to the Brewster's angle at which the light is incident on the interface. In practical applications, the sectional pattern of the strip-shaped concave-convex rib 100 can be set according to needs, and is not limited herein.
Fig. 8a is a schematic perspective view of the strip-shaped concave-convex rib provided by the embodiment of the present invention, and fig. 8b is a schematic top view of the strip-shaped concave-convex rib shown in fig. 8 a. In practical applications, if the bar-shaped convex-concave ridges are all arranged to extend along the same direction as shown in fig. 8a and have the same length, height and shape, the regular pattern will interfere with the display screen, so that moire fringes are easily formed on the light-emitting surface of the display panel, and in order to avoid moire fringes, the arrangement of the bar-shaped concave-convex ridges 100 shown in fig. 8b should be avoided, so that the bar-shaped convex-concave ridges can be distributed irregularly.
In a practical manner, as shown in fig. 9a, for the structural schematic diagram of the strip-shaped concave-convex rib provided by the embodiment of the present invention, the lengths of the strip-shaped concave-convex ribs 100 may not be completely equal. When the arrangement is performed, the strip-shaped concave-convex ridges 100 do not need to be distributed along the same straight line, and can be randomly arranged in a staggered manner as long as the extending directions of the strip-shaped concave-convex ridges are the same. In another practical way, as shown in fig. 9b, the cross-sectional view of the strip-shaped concave-convex rib provided by the embodiment of the present invention may be configured such that the heights of the strip-shaped concave-convex ribs 100 are not all equal, the heights of two adjacent strip-shaped concave-convex ribs 100 may be equal or different, and the cross-sectional patterns of the strip-shaped concave-convex ribs are similar. In practical applications, the two embodiments can be combined or used alone, and are not limited herein.
Based on the same inventive concept, the embodiment of the invention also provides a display device, which comprises any one of the display panels. The display device can be a liquid crystal panel, a liquid crystal display, a liquid crystal television, an organic light emitting diode display panel, an OLED display, an OLED television or an electronic paper and other display devices. And the mobile equipment can also be mobile equipment such as a mobile phone, a smart phone and the like.
Taking a liquid crystal display device as an example, as shown in fig. 10, which is one of the structural schematic diagrams of the display device provided in the embodiment of the present invention, the display substrate 11 includes: an array substrate 111 and a color filter substrate 112 which are arranged oppositely; the display device further includes: and the backlight module 14 is positioned on one side of the array substrate 111, which is far away from the color film substrate 112. The emergent light of the backlight module 14 is normally incident into the display panel, and the brightness of the transmitted light can be adjusted by controlling the polarization of the liquid crystal layer corresponding to each pixel.
In an implementation manner, in the display device provided in the embodiment of the present invention, as shown in fig. 11, for a second structural schematic diagram of the display device provided in the embodiment of the present invention, the backlight module 14 may include: a light guide plate 141 and a reflective polarizer 142 positioned at a light emitting side of the light guide plate 141; the display panel further includes: and the second polarizing layer 15 is positioned on the surface of the array substrate 111 on the side away from the color film substrate 112. The backlight module is provided with the reflective polarizer 142, so that the vibration component of the light parallel to the polarization direction of the reflective polarizer 142 can pass through the reflective polarizer 142, the vibration component of the light perpendicular to the polarization direction is reflected back to the light guide plate 141, and the light emitted after the total reflection action of the light guide plate 141 can be transmitted by the light component parallel to the polarization direction of the reflective polarizer 142, so that the light utilization rate of the light guide plate is improved, and when the reflective polarizer 142 is used as a light intensifying element, the light emitted to the array substrate by the backlight module 14 is linearly polarized light.
However, when the outgoing light of the backlight module enters the surface of the array substrate 111, the refractive index difference between the films on the surface of the array substrate 111 also causes the problem of high surface reflectivity. Therefore, in order to improve the light utilization rate of the backlight module, the surface film layer of the array substrate can be subjected to the surface treatment operation based on the same inventive concept.
In one practical implementation manner, as shown in fig. 11, a surface of the second polarizing layer 15 facing the array substrate 111 is a plane, a surface of the second polarizing layer 15 facing away from the array substrate 111 has a plurality of fifth parallel concave and convex ribs 600, and an extending direction of the fifth concave and convex ribs 600 is perpendicular to a polarization direction of the reflective polarizer 142; the fifth strip-shaped concave-convex rib 600 has a fifth inclined surface 601 extending in an edge direction, and an angle between the fifth inclined surface 601 and the flat surface of the second polarizing layer 15 is a brewster angle at which light is incident from air to the second polarizing layer 15.
In the embodiment, the polarization direction of the reflective polarizer 142 is the horizontal direction as shown in fig. 11, so that the light emitted from the backlight module is linearly polarized light with the polarization direction being the horizontal direction, the linearly polarized light is vertically incident on the array substrate, and when the incident angle of the fifth inclined plane 601 of the second polarizing layer 15 is the brewster angle at which the light is incident from the air to the second polarizing layer 15, according to the brewster law, the intensity of the reflected light will decrease to zero, and according to the energy conservation law, when the energy of the reflected light decreases, the energy of the transmitted light will inevitably increase. Therefore, the reflectivity of the emergent light of the backlight module on the surface of the second polarizing layer 15 is reduced, more incident light enters the display panel, and the light utilization rate of the backlight module is improved.
In another implementation manner, as shown in fig. 12, which is a third schematic structural diagram of the display device according to the embodiment of the present invention, the display panel further includes: the high-permeability film 16 is positioned on the surface of the second polarizing layer 15 on the side opposite to the array substrate 111; the surface of the side, facing the second polarizing layer 15, of the high-transmittance film 16 is a plane, the surface of the side, facing away from the second polarizing layer 15, of the high-transmittance film 16 is provided with a plurality of sixth concave-convex ribs 700 arranged in parallel, and the extending direction of the sixth concave-convex ribs 700 is perpendicular to the polarization direction of the reflective polarizer 142; the sixth concave-convex rib 700 has a sixth slope 701 extending in the prism direction, and the angle between the sixth slope 701 and the flat surface of the high-transmittance film 16 is the brewster angle at which light is incident from air to the high-transmittance film 16.
In this embodiment, a layer of high-transmittance film may be formed on the surface of the second polarization layer 15 on the side away from the array substrate 111 to increase the light transmittance of the backlight module, and then the surface of the high-transmittance film contacting with air, i.e., the surface on the side away from the second polarization layer 15, is subjected to surface treatment to form a sixth inclined plane 701 capable of making light incident at the brewster angle, so as to reduce the reflectivity of the light exiting from the backlight module on the surface.
The display panel and the display device provided by the embodiment of the invention comprise a display substrate, a first polarizing layer positioned on the light emergent side of the display substrate, and at least one functional film layer positioned between the first polarizing layer and the display substrate; the surface of one side of the first polarizing layer, which is far away from each functional film layer, is a plane; the first polarizing layer, the functional film layers and the display substrate are mutually attached, and at least one interface is an uneven interface with a plurality of parallel strip-shaped concave-convex ridges; the edge direction of the strip-shaped concave-convex edge is parallel to the plane surface of the first polarizing layer; the uneven interface farthest away from the display substrate is provided with a strip-shaped concave-convex edge, the edge direction of the strip-shaped concave-convex edge is perpendicular to the polarization direction of the first polarizing layer, the strip-shaped concave-convex edge is provided with an inclined plane extending along the edge direction, and the included angle between the inclined plane and the plane surface of the first polarizing layer is the Brewster angle of light entering the uneven interface along the first direction; the first direction is an incident direction of light rays to the interior of the display panel through the first polarizing layer. The inclined plane on the uneven interface positioned on the outermost side is set to form an included angle with the flat interface, which is the Brewster angle of light incident inwards on the interface, so that when the ambient light vertically enters the display panel, the ambient light passing through the uneven interface can be incident at the Brewster angle, the ambient light passing through the first polarizing layer is converted into linearly polarized light, the reflected light of the vertically incident ambient light on the uneven interface can be eliminated according to the Brewster law, and the surface reflectivity of the display panel is reduced.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (17)
1. A display panel, comprising: the display substrate comprises a display substrate, a first polarizing layer and at least one functional film layer, wherein the first polarizing layer is positioned on the light emergent side of the display substrate; wherein,
the surface of one side of the first polarizing layer, which is far away from each functional film layer, is a plane;
the first polarizing layer, each functional film layer and the display substrate are mutually attached, and at least one interface is an uneven interface with a plurality of parallel strip-shaped concave-convex ribs; the edge direction of the strip-shaped concave-convex edge is parallel to the plane surface of the first polarizing layer;
the edge direction of the strip-shaped concave-convex edge on the uneven boundary surface farthest away from the display substrate is perpendicular to the polarization direction of the first polarizing layer, the strip-shaped concave-convex edge is provided with an inclined surface extending along the edge direction, and the included angle between the inclined surface and the flat surface of the first polarizing layer is the Brewster angle of light entering the uneven boundary surface along the first direction;
the first direction is an incident direction of light rays to the interior of the display panel through the first polarizing layer.
2. The display panel of claim 1, wherein the display substrate comprises an array substrate and a color filter substrate which are arranged oppositely;
at least one functional film layer is arranged between the first polarizing layer and the color film substrate.
3. The display panel according to claim 2, wherein the functional film layer is a shielding layer.
4. The display panel according to claim 3, wherein an interface of the first polarizing layer and the shielding layer is the uneven interface;
the uneven interface comprises a plurality of first strip-shaped concave-convex ridges, inclined planes of the first strip-shaped concave-convex ridges extending along the edge direction are first inclined planes, and included angles between the first inclined planes and the flat surfaces of the first polarizing layers are Brewster angles of light rays incident from the first polarizing layers to the shielding layers.
5. The display panel according to claim 3, wherein a first substrate is provided on a side of the color filter substrate to which the shielding layer is attached;
the interface between the shielding layer and the first substrate is the uneven interface;
the uneven interface comprises a plurality of second strip-shaped concave-convex ridges, inclined planes of the second strip-shaped concave-convex ridges extending along the edge direction are second inclined planes, and included angles between the second inclined planes and the flat surface of the first polarizing layer are Brewster angles of light rays incident from the shielding layer to the first substrate base plate.
6. The display panel according to claim 3, wherein a first substrate is provided on a side of the color filter substrate to which the shielding layer is attached;
the interface between the first polarizing layer and the shielding layer and the interface between the shielding layer and the first substrate are both the uneven interfaces;
the interface of the first polarizing layer and the shielding layer comprises a plurality of third strip-shaped concave-convex ridges, the inclined planes of the third strip-shaped concave-convex ridges extending along the edge direction are third inclined planes, and the included angle between the third inclined planes and the plane surface of the first polarizing layer is theta1；
The interface of the shielding layer and the first substrate base plate comprises a plurality of fourth concave-convex ribs, the inclined plane of the fourth concave-convex ribs extending along the edge direction is a fourth inclined plane, and the included angle between the fourth inclined plane and the plane surface of the first polarizing layer satisfies the following formula:
α＝2θ1+θ2-90°；
α is the angle between the fourth inclined plane and the plane surface of the first polarizing layer, theta1Is the Brewster's angle, theta, at which light is incident from the first polarizing layer to the shielding layer2The Brewster angle of the light ray incident from the shielding layer to the first substrate is adopted.
7. The display panel according to any one of claims 1 to 6, wherein a cross-sectional pattern of the stripe-shaped uneven ribs perpendicular to the flat surface of the first polarizing layer is symmetrical with respect to a normal line of the flat surface of the first polarizing layer.
8. The display panel of claim 7, wherein the cross-sectional shape of the strip-shaped concave-convex rib is an isosceles triangle.
9. The display panel according to any one of claims 3 to 6, wherein a material of the shielding layer is a transparent conductive material.
10. The display panel according to any one of claims 1 to 6, wherein each of the stripe-shaped uneven ribs is irregularly distributed.
11. The display panel of claim 10, wherein the lengths of the elongated concave-convex ribs are not exactly equal.
12. The display panel of claim 10, wherein the heights of the elongated concave-convex ribs are not all equal.
13. A display device characterized by comprising the display panel according to any one of claims 1 to 12.
14. The display device of claim 13, wherein the display substrate comprises: the array substrate and the color film substrate are oppositely arranged;
the display device further includes: and the backlight module is positioned on one side of the array substrate, which is deviated from the color film substrate.
15. The display device of claim 14, wherein the backlight module comprises: the light guide plate and the reflective polarizer are positioned on the light emergent side of the light guide plate;
the display panel further includes: and the second polarizing layer is positioned on the surface of one side of the array substrate, which is far away from the color film substrate.
16. The display device according to claim 15, wherein the surface of the second polarizing layer facing the array substrate is planar, and the surface of the second polarizing layer facing away from the array substrate has a plurality of fifth parallel concave-convex ribs, and the fifth concave-convex ribs extend in a direction perpendicular to the polarization direction of the reflective polarizer;
the fifth strip-shaped concave-convex edge is provided with a fifth inclined plane extending along the edge direction, and an included angle between the fifth inclined plane and the flat surface of the second polarizing layer is the Brewster angle of light rays incident to the second polarizing layer from air.
17. The display device according to claim 15, wherein the display panel further comprises: the high-permeability film is positioned on the surface of one side, away from the array substrate, of the second polarizing layer;
the surface of one side, facing the second polarizing layer, of the high-transmittance film is a plane, the surface of one side, facing away from the second polarizing layer, of the high-transmittance film is provided with a plurality of sixth parallel concave-convex edges, and the extending direction of the sixth concave-convex edges is perpendicular to the polarizing direction of the reflective polarizer;
the sixth concave convex ridge is provided with a sixth inclined surface extending along the edge direction, and the included angle between the sixth inclined surface and the flat surface of the high-permeability film is the Brewster angle of light rays entering the high-permeability film from air.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363235A (en) * | 2018-03-02 | 2018-08-03 | 京东方科技集团股份有限公司 | Antireflective film and preparation method thereof, array substrate, display device |
| CN110323354A (en) * | 2019-04-25 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN110647213A (en) * | 2019-09-25 | 2020-01-03 | Oppo（重庆）智能科技有限公司 | Folding display module and electronic equipment |
| CN110865481A (en) * | 2018-08-28 | 2020-03-06 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN111490078A (en) * | 2020-02-13 | 2020-08-04 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN112987406A (en) * | 2021-03-25 | 2021-06-18 | 京东方科技集团股份有限公司 | Backlight module and display device |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000098132A (en) * | 1998-09-17 | 2000-04-07 | Toppan Printing Co Ltd | Polarizing beam splitter having electromagnetic wave shielding effect |
| CN1400496A (en) * | 2001-07-27 | 2003-03-05 | 精工爱普生株式会社 | Liquid crystal display and electronic equipment |
| JP2003084283A (en) * | 1992-10-09 | 2003-03-19 | Asahi Glass Co Ltd | Illuminating device and liquid crystal display device |
| CN1504804A (en) * | 2002-12-03 | 2004-06-16 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and liquid crystal display device |
| CN1735768A (en) * | 2002-11-06 | 2006-02-15 | 夏普株式会社 | Lighting device and image display unit and light guide provided with it |
| US20060187547A1 (en) * | 2005-01-21 | 2006-08-24 | Masanori Fukuda | Polarized light irradiation apparatus polarized light irradiation method, photo alignment film, and retardation film |
| JP2009014886A (en) * | 2007-07-03 | 2009-01-22 | Fujifilm Corp | Polarizing plate protection film, polarizing plate and liquid crystal display apparatus using same |
| CN101548209A (en) * | 2007-06-19 | 2009-09-30 | Lg化学株式会社 | Polarizing plate and polarizing device comprising the same |
| CN101782689A (en) * | 2010-01-26 | 2010-07-21 | 金世龙 | Method for completely converting natural light into linear polarized light vibrating unidirectionally and application |
| CN102612664A (en) * | 2009-11-17 | 2012-07-25 | 3M创新有限公司 | Polarization sensitive front projection screen |
| CN202452316U (en) * | 2012-03-19 | 2012-09-26 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN103838029A (en) * | 2014-02-18 | 2014-06-04 | 京东方科技集团股份有限公司 | Display device |
| CN104516043A (en) * | 2013-09-26 | 2015-04-15 | 大日本印刷株式会社 | Polarizing plate, image display device, and improvement method of photopic contrast in image display device |
| CN106132686A (en) * | 2014-03-25 | 2016-11-16 | 东丽株式会社 | Laminated body, transparent conductive laminate and touch panel |
| CN205750202U (en) * | 2016-06-24 | 2016-11-30 | 北京京东方光电科技有限公司 | A kind of substrate and display device |
| CN106918855A (en) * | 2017-04-07 | 2017-07-04 | 京东方科技集团股份有限公司 | A kind of reflection display device |
-
2017
- 2017-07-07 CN CN201710552997.5A patent/CN107272250B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003084283A (en) * | 1992-10-09 | 2003-03-19 | Asahi Glass Co Ltd | Illuminating device and liquid crystal display device |
| JP2000098132A (en) * | 1998-09-17 | 2000-04-07 | Toppan Printing Co Ltd | Polarizing beam splitter having electromagnetic wave shielding effect |
| CN1400496A (en) * | 2001-07-27 | 2003-03-05 | 精工爱普生株式会社 | Liquid crystal display and electronic equipment |
| CN1735768A (en) * | 2002-11-06 | 2006-02-15 | 夏普株式会社 | Lighting device and image display unit and light guide provided with it |
| CN1504804A (en) * | 2002-12-03 | 2004-06-16 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and liquid crystal display device |
| US20060187547A1 (en) * | 2005-01-21 | 2006-08-24 | Masanori Fukuda | Polarized light irradiation apparatus polarized light irradiation method, photo alignment film, and retardation film |
| CN101548209A (en) * | 2007-06-19 | 2009-09-30 | Lg化学株式会社 | Polarizing plate and polarizing device comprising the same |
| JP2009014886A (en) * | 2007-07-03 | 2009-01-22 | Fujifilm Corp | Polarizing plate protection film, polarizing plate and liquid crystal display apparatus using same |
| CN102612664A (en) * | 2009-11-17 | 2012-07-25 | 3M创新有限公司 | Polarization sensitive front projection screen |
| CN101782689A (en) * | 2010-01-26 | 2010-07-21 | 金世龙 | Method for completely converting natural light into linear polarized light vibrating unidirectionally and application |
| CN202452316U (en) * | 2012-03-19 | 2012-09-26 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN104516043A (en) * | 2013-09-26 | 2015-04-15 | 大日本印刷株式会社 | Polarizing plate, image display device, and improvement method of photopic contrast in image display device |
| CN103838029A (en) * | 2014-02-18 | 2014-06-04 | 京东方科技集团股份有限公司 | Display device |
| CN106132686A (en) * | 2014-03-25 | 2016-11-16 | 东丽株式会社 | Laminated body, transparent conductive laminate and touch panel |
| CN205750202U (en) * | 2016-06-24 | 2016-11-30 | 北京京东方光电科技有限公司 | A kind of substrate and display device |
| CN106918855A (en) * | 2017-04-07 | 2017-07-04 | 京东方科技集团股份有限公司 | A kind of reflection display device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363235A (en) * | 2018-03-02 | 2018-08-03 | 京东方科技集团股份有限公司 | Antireflective film and preparation method thereof, array substrate, display device |
| US10818695B2 (en) | 2018-03-02 | 2020-10-27 | Boe Technology Group Co., Ltd. | Anti-reflective substrate and method for preparing the same, array substrate and display device |
| CN108363235B (en) * | 2018-03-02 | 2024-02-09 | 京东方科技集团股份有限公司 | Antireflection film, preparation method thereof, array substrate and display device |
| CN110865481A (en) * | 2018-08-28 | 2020-03-06 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| US11143905B2 (en) | 2018-08-28 | 2021-10-12 | Beijing Boe Display Technology Co., Ltd. | Display panel and manufacturing method thereof, display device |
| CN110865481B (en) * | 2018-08-28 | 2021-10-29 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN110323354A (en) * | 2019-04-25 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN110647213A (en) * | 2019-09-25 | 2020-01-03 | Oppo（重庆）智能科技有限公司 | Folding display module and electronic equipment |
| CN111490078A (en) * | 2020-02-13 | 2020-08-04 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN111490078B (en) * | 2020-02-13 | 2023-04-18 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN112987406A (en) * | 2021-03-25 | 2021-06-18 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2022199006A1 (en) * | 2021-03-25 | 2022-09-29 | 京东方科技集团股份有限公司 | Backlight module and display device |
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