CN114824131A - Display panel - Google Patents
Display panel Download PDFInfo
- Publication number
- CN114824131A CN114824131A CN202210405482.3A CN202210405482A CN114824131A CN 114824131 A CN114824131 A CN 114824131A CN 202210405482 A CN202210405482 A CN 202210405482A CN 114824131 A CN114824131 A CN 114824131A
- Authority
- CN
- China
- Prior art keywords
- adhesive layer
- particles
- transparent adhesive
- display panel
- display module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002245 particle Substances 0.000 claims abstract description 115
- 230000003287 optical effect Effects 0.000 claims abstract description 96
- 239000012790 adhesive layer Substances 0.000 claims abstract description 92
- 230000001681 protective effect Effects 0.000 claims abstract description 24
- 238000002834 transmittance Methods 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 48
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- -1 calcium nitride Chemical class 0.000 claims description 4
- 239000004005 microsphere Substances 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 13
- 230000000737 periodic effect Effects 0.000 abstract description 7
- 239000002390 adhesive tape Substances 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000010287 polarization Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 235000009537 plain noodles Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002077 nanosphere Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention provides a display panel, which comprises a display module, an optical transparent adhesive layer positioned on the display module, and a protective cover plate positioned on the optical transparent adhesive layer; wherein, scattering particles are arranged in the optical transparent adhesive layer, the light transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is greater than or equal to 15%. When external light is refracted to the optical transparent adhesive tape from the protective cover plate, the light contacts the surfaces of different scattering particles and is reflected back at different angles, the light reflected at different angles does not form periodic arrangement on a spatial structure, the phenomenon of color separation is avoided, and meanwhile, due to the shielding of the scattering particles, partial light incident to the inside of the display module is reduced, so that the normal display effect of the display panel is ensured.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel.
Background
The OLED display panel has characteristics of good luminance, high luminous efficiency, wide viewing angle range, self-luminescence, and the like, and has become a key point in research and application in the field of organic photoelectric display.
OLED display panel is the ambient light reflection of separation screen, set up one deck circular polarization Piece (POL) in panel light-emitting one side, adopt the principle of polarized light, effectively reduce the reverberation of external environment light on the screen, but use the circular polarization piece, the transmissivity has been reduced, luminance loss 50%, external light is at first back through the protective cover board, the polaroid, optics glue film and display module assembly back, can produce the reflection light between each rete, the external environment light after these reflections is followed display panel's play plain noodles outgoing, the phenomenon of colour separation appears easily in the periodic arrangement in space, thereby influence display panel's display effect. In order to achieve higher light output brightness, more power consumption needs to be provided, and the price of the polarizer is higher. Based on this, panel factories in the display industry all adopt the color resistance layer to replace the polarization technology, so as to reduce power consumption, and the suppression reflection of the polarizer is avoided, so that the surface color separation phenomenon of the OLED display screen is more serious when the OLED display screen is irradiated by external environment light, and the display quality is more influenced.
In summary, a new display panel is needed to solve the problem that the display panel does not use a circular polarizer, external ambient light enters the display panel, is reflected inside the display panel (the light emitting device layer and the driving backplane), and is emitted from the light emitting surface of the display panel after being reflected, and color separation easily occurs in the periodic arrangement in space, thereby affecting the display effect of the display panel.
Disclosure of Invention
This application provides a display panel according to prior art problem, can solve the OLED display panel among the prior art and not use the circular polaroid, and outside environment light incides inside display panel, takes place to reflect inside display panel (luminescent device layer and drive backplate), and outside environment light after the reflection is emergent from display panel's play plain noodles, and the phenomenon of colour separation appears easily in the periodic arrangement in space to influence display panel's display effect.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the embodiment of the invention provides a display panel, which comprises a display module, an optical transparent adhesive layer and a protective cover plate, wherein the optical transparent adhesive layer is positioned on the display module; the optical transparent adhesive layer is internally provided with scattering particles, the light transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is greater than or equal to 15%.
According to a preferred embodiment of the present invention, the scattering particles are micro-spheres with a particle size of 20nm to 300nm, and the material of the scattering particles is one or more of mono-silicon, zirconium dioxide, titanium dioxide and calcium nitride.
According to a preferred embodiment of the present invention, the refractive index of the scattering particles is greater than the refractive index of the optically transparent glue layer.
According to a preferred embodiment of the present invention, reflective particles are further disposed between the optical transparent adhesive layer and the display module, wherein the reflective particles are hemispherical particles; the reflecting particles face the display module and are flat surfaces, and the reflecting particles face the protective cover plate and are smooth cambered surfaces.
According to a preferred embodiment of the present invention, the optical transparent adhesive layer includes a first optical transparent adhesive layer and a second optical transparent layer, the scattering particles include first scattering particles and second scattering particles, the first scattering particles are disposed in the first optical transparent adhesive layer, and the second scattering particles are disposed in the second optical transparent adhesive layer.
According to a preferred embodiment of the present invention, a color filter layer is disposed between the first optical transparent adhesive layer and the second optical transparent layer, first reflective particles are disposed between the first optical transparent adhesive layer and the display module, and second reflective particles are further disposed between the second optical transparent adhesive layer and the color filter layer, wherein the first reflective particles and the second reflective particles are hemispherical particles; the hemispherical particles face the display module and are planes, and the hemispherical particles face the protective cover plate and are smooth cambered surfaces.
According to a preferred embodiment of the present invention, the first scattering particles and the second scattering particles are disposed in a staggered manner in the light emitting direction of the display module.
According to a preferred embodiment of the present invention, the first reflective particles and the second reflective particles are made of transparent polyimide or polystyrene.
According to a preferred embodiment of the present invention, the color filter layer includes a red filter layer, a green filter layer, and a blue filter layer, and a black matrix is further disposed between every two filter layers of the red filter layer, the green filter layer, and the blue filter layer.
According to a preferred embodiment of the present invention, the display module is one of an OLED display module, a Mini-LED display module and a Micro-LED display module.
The invention has the beneficial effects that: the embodiment of the invention provides a display panel, which comprises a display module, an optical transparent adhesive layer and a protective cover plate, wherein the optical transparent adhesive layer is positioned on the display module; wherein, scattering particles are arranged in the optical transparent adhesive layer, the light transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is greater than or equal to 15%. When external light is refracted to the optical transparent adhesive tape from the protective cover plate, the light contacts the surfaces of different scattering particles and is reflected back at different angles, the light reflected at different angles does not form periodic arrangement on a spatial structure, the phenomenon of color separation is avoided, and meanwhile, due to the shielding of the scattering particles, partial light incident to the inside of the display module is reduced, so that the normal display effect of the display panel is ensured.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 and 2 are schematic structural diagrams of a display panel in the prior art.
Fig. 3 is a schematic view of a film layer structure of a display panel according to an embodiment of the invention.
Fig. 4 is a schematic view of another film structure of a display panel according to an embodiment of the present invention.
Fig. 5 is a schematic view of another film layer structure of a display panel according to an embodiment of the invention.
Fig. 6 to 10 are schematic diagrams illustrating a color separation phenomenon of a display panel according to an embodiment of the present invention.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals, and broken lines in the drawings indicate that the elements do not exist in the structures, and only the shapes and positions of the structures are explained.
As shown in fig. 1, a conventional OLED display panel in the prior art includes a display module 11, a first optical adhesive layer 12 on the display module 11, a polarizer 13 on the first optical adhesive layer 12, a second optical adhesive layer 14 on the polarizer 13, and a protective cover 15 on the second optical adhesive layer 14. After the ambient light S11 is incident on the surface of the protective cover 15, a reflected light S12 is generated, and then a portion of the light S13 is refracted to the surface of the second optical adhesive layer 14, so as to generate a reflected light S14; a part of the light rays S15 is refracted to the surface of the polarizer 13 to generate reflected light rays S16, another part of the light rays S17 is refracted to the surface of the first optical adhesive layer 12 to generate reflected light rays S18, a part of the light rays S19 is refracted to the surface of the display module 11 to continuously generate reflected light rays S20, another part of the light rays S21 is refracted to the inside of the display module 11 to generate reflected light rays S22, and these reflected light rays S12, reflected light rays S14, reflected light rays S16, reflected light rays S18, reflected light rays S20 and reflected light rays S22 are emitted from the light emitting surface of the display panel.
As shown in fig. 2, another conventional OLED display panel in the prior art includes a display module 21, a third optical adhesive layer 22 on the display module 21, and a protective cover 23 on the third optical adhesive layer 22, wherein an external ambient light S23 incident on the surface of the protective cover 23 generates a reflected light S24, then, a portion of the light ray S25 is refracted to the surface of the third optical adhesive layer 22 to generate a reflected light ray S26, then, a portion of the light S27 is refracted to the surface of the display module 21 to generate a reflected light S28, then, a portion of the light ray S29 is refracted to the inside of the display module 21 to generate a reflected light ray S30, and similarly, the reflected light ray S24, the reflected light ray S26, the reflected light ray S28 and the reflected light ray S30 exit from the light exit surface of the display panel, since the reflected light rays are also periodically arranged in space, the phenomenon of color separation is also easy to occur, thereby affecting the display effect of the display panel.
One of the two conventional OLED display panels comprises a polaroid, and the other conventional OLED display panel adopts a color resistance layer to replace a polarization technology, so that the power consumption is reduced, but the phenomena exist; the external environment light is incident into the display panel and is reflected inside the display panel (the light emitting device layer and the driving back plate), the reflected external environment light is emitted from the light emitting surface of the display panel, and the color separation phenomenon easily occurs due to the periodic arrangement in space, so that the display effect of the display panel is influenced, and the defect can be solved by the embodiment.
The embodiment of the invention provides a display panel, which comprises a display module, an optical transparent adhesive layer and a protective cover plate, wherein the optical transparent adhesive layer is positioned on the display module; wherein, scattering particles are arranged in the optical transparent adhesive layer, the light transmittance of the optical transparent adhesive is greater than or equal to 90%, and the haze of the optical transparent adhesive is greater than or equal to 15%. When external light is refracted to the optical transparent adhesive tape from the protective cover plate, the light contacts the surfaces of different scattering particles and is reflected back at different angles, the light reflected at different angles does not form periodic arrangement on a spatial structure, the phenomenon of color separation is avoided, and meanwhile, due to the shielding of the scattering particles, partial light incident to the inside of the display module is reduced, so that the normal display effect of the display panel is ensured.
Specifically, as shown in fig. 3, an embodiment of the invention provides a film layer structure of a display panel. The display panel 100 includes a display module 101, an optical transparent adhesive layer 102 on the display module 101, and a protective cover plate 103 on the optical transparent adhesive layer 102; wherein, scattering particles, such as scattering particle 1021, scattering particle 1022 and scattering particle 1023, are arranged in the optical transparent adhesive layer 102, the light transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is greater than or equal to 15%. The display module 101 in the embodiment is one of an OLED display module, a Mini-LED display module and a Micro-LED display module; the OLED display panel does not use a circular polaroid, and the scattering particles are doped with the optical transparent adhesive layer to replace the common optical transparent adhesive layer. On one hand, the external ambient light incident on the display module 101 can be reduced; on the other hand, after the external ambient light incident to the optical transparent adhesive layer is reflected, the scattered light of the reflected external ambient light is increased, the phenomenon that the light rays emitted from the light emitting surface of the display panel are periodically arranged in space is reduced, the color separation phenomenon of the display panel is further improved, and the display effect of the display panel is improved. The scattering particles are preferably micro-spheres with the particle size of 20nm to 300nm, and the material of the scattering particles is preferably one or more of monomer silicon, zirconium dioxide, titanium dioxide and calcium nitride; the refractive index of the scattering particles is greater than that of the optical transparent adhesive layer, so that the light extraction efficiency of the display module 101 can be improved.
After the ambient light S31 is incident on the surface of the protective cover 103, a reflected light S32 is generated, and then a portion of the light S33 is refracted to the surface of the optical transparent adhesive layer 102, so as to generate a reflected light S34; a part of light is refracted into the optical transparent adhesive layer 102, the refracted light S35 encounters the scattering particles 1021, a reflected light S36 is generated on the surface of the scattering particles 1021, the refracted light S37 encounters the scattering particles 10222, a reflected light S38 is generated on the surface of the scattering particles 1022, the refracted light S39 is refracted to the surface of the display module 101, a reflected light S41 is generated, a part of the refracted light S42 generates a reflected light S43 in the display module 101, the reflected light S43 encounters the scattering particles 1023, a divergent refracted light S44, a refracted light S45 and a refracted light S46 are formed on the scattering particles 1023, and it can be clearly seen from fig. 3 that the reflected lights are not periodically arranged in space, so that the color separation phenomenon of the display panel is improved, and the display effect of the display panel is improved.
In order to further improve the color separation phenomenon of the display panel, as shown in fig. 4, reflective particles 104 are further disposed between the optical transparent adhesive layer 102 and the display module 101 in this embodiment, wherein the reflective particles 104 are hemispherical particles; the reflective particles 104 are flat toward the display module 101, and smooth arc toward the protective cover 103, and the smooth arc is at least one of a circle, an ellipse, a wave or a sawtooth. When the external light is emitted from the optical transparent adhesive layer 102 to the display module 101 and is reflected by the smooth arc surface, the external light is prevented from further entering the display module, and the phenomenon that the reflected external ambient light is emitted from the light emitting surface of the display panel and is mixed with the three color lights emitted from the display panel to cause color separation is avoided, so that the display effect of the display panel is provided.
As shown in fig. 5, an embodiment of the invention provides a film layer structure of a display panel. The display panel 200 includes a display module 201, an optically transparent adhesive layer on the display module 201, and a protective cover plate 207 on the optically transparent adhesive layer; wherein scattering particles are arranged in the optical transparent adhesive layer, the light transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is greater than or equal to 15%; the scattering particles are micro nano-spheres, preferably micro-spheres with the particle size of 20nm to 300um, and the material of the scattering particles is one or more of zirconium dioxide, titanium dioxide and calcium nitride. The refractive index of the scattering particles is greater than the refractive index of the optically transparent glue layer.
The optical transparent adhesive layer of the embodiment includes a first optical transparent adhesive layer 202 and a second optical transparent adhesive layer 204, the scattering particles include first scattering particles and second scattering particles, first scattering particles, such as the first scattering particles 2021, the first scattering particles 2022 and the first scattering particles 2023, are disposed in the first optical transparent adhesive layer 202, and second scattering particles, such as the second scattering particles 2041, the second scattering particles 2042 and the second scattering particles 2043, are disposed in the second optical transparent adhesive layer 204. A color filter layer 203 is arranged between the first optical transparent adhesive layer 202 and the second optical transparent adhesive layer 204, first reflective particles 205 are arranged between the first optical transparent adhesive layer 202 and the display module 201, and second reflective particles 206 are arranged between the second optical transparent adhesive layer 204 and the color filter layer 203, wherein the first reflective particles 205 and the second reflective particles 206 are hemispherical particles; the hemispherical particles are flat towards the display module, smooth cambered surfaces towards the protective cover plate, and the cambered surfaces are at least one of circular, elliptical, wavy or zigzag patterns.
In the light emitting direction of the display module 201, the first scattering particles and the second scattering particles are preferably arranged in a staggered manner. The materials of the first reflective particles 205 and the second reflective particles 206 are both transparent polyimide or polystyrene. The color filter layer 203 in this embodiment includes a red filter layer, a green filter layer, and a blue filter layer, and a black matrix is further provided between every two filter layers of the red filter layer, the green filter layer, and the blue filter layer. The red filter layer, the green filter layer and the blue filter layer are respectively made of R/G/B color resists of SPR220-4.5 systems, and the R/G/B color resists of the SPR220-4.5 systems are also doped with ultraviolet curing organic materials of dye particles.
The inventors also found that the light transmittance and haze of the optically clear adhesive layer affect the degree of color separation of the display panel. The scattering particle distributions in experiments two through five were the same. In the first test, no scattering particles are disposed on the optical transparent adhesive layer, the transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is less than 1%, so that the color separation display condition in fig. 6 is obtained, and the color separation effect is relatively strong and relatively obvious. In the second test, the scattering particles are disposed on the optical transparent adhesive layer, the transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is set to 15%, so that the color separation display condition in fig. 7 is obtained, and the color separation phenomenon is improved compared with that in fig. 6. In the third test, the scattering particles are disposed on the optical clear adhesive layer, the transmittance of the optical clear adhesive layer is greater than or equal to 90%, and the haze of the optical clear adhesive layer is set to 34%, so that the display condition of color separation in fig. 8 is obtained, and the color separation phenomenon is further improved as compared with that in fig. 7. In the fourth test, the scattering particles are disposed on the optical transparent adhesive layer, the transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is set to 60%, so that the color separation display condition in fig. 9 is obtained, and the color separation phenomenon is further improved compared with that in fig. 8. In the fifth test, the scattering particles are disposed on the optical clear adhesive layer, the transmittance of the optical clear adhesive layer is greater than or equal to 90%, and the haze of the optical clear adhesive layer is set to 75%, so that the display condition of color separation in fig. 10 is obtained, and the color separation phenomenon is further improved as compared with that in fig. 9. In summary, the color separation phenomenon decreases as the haze of the particle-doped optical clear paste layer increases.
In the foregoing, an embodiment of the present invention provides a display panel, where the display panel includes a display module, an optically transparent adhesive disposed on the display module, and a protective cover plate disposed on the optically transparent adhesive; wherein, reflective particles are uniformly arranged in the optical transparent adhesive. When external light is incident to the surface of the optical transparent adhesive from the protective cover plate, part of the light is refracted to the inside of the optical transparent adhesive, the light contacts the surface of the reflective particles, is reflected back again and is emitted at different reflection angles, so that the external light is prevented from further being incident into the display module, the reflected external environment light is prevented from being emitted from the light emitting surface of the display panel and is mixed with the three color lights emitted by the display panel, and the phenomenon of color separation occurs, thereby providing the display effect of the display panel.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A display panel is characterized by comprising a display module, an optical transparent adhesive layer positioned on the display module, and a protective cover plate positioned on the optical transparent adhesive layer; the optical transparent adhesive layer is internally provided with scattering particles, the light transmittance of the optical transparent adhesive layer is greater than or equal to 90%, and the haze of the optical transparent adhesive layer is greater than or equal to 15%.
2. The display panel of claim 1, wherein the scattering particles are micro-spheres with a particle size of 20nm to 300nm, and the material of the scattering particles is one or more of simple silicon, zirconium dioxide, titanium dioxide and calcium nitride.
3. The display panel of claim 2, wherein the scattering particles have a refractive index greater than a refractive index of the optically clear adhesive layer.
4. The display panel according to claim 1, wherein reflective particles are further disposed between the optically transparent adhesive layer and the display module, wherein the reflective particles are hemispherical particles; the reflecting particles face the display module and are flat surfaces, and the reflecting particles face the protective cover plate and are smooth cambered surfaces.
5. The display panel of claim 4, wherein the optical clear adhesive layer comprises a first optical clear adhesive layer and a second optical clear layer, wherein the scattering particles comprise first scattering particles and second scattering particles, wherein the first scattering particles are disposed in the first optical clear adhesive layer, and wherein the second scattering particles are disposed in the second optical clear adhesive layer.
6. The display panel according to claim 5, wherein a color filter layer is disposed between the first optically transparent adhesive layer and the second optically transparent layer, first reflective particles are disposed between the first optically transparent adhesive layer and the display module, and second reflective particles are further disposed between the second optically transparent adhesive layer and the color filter layer, wherein the first reflective particles and the second reflective particles are hemispherical particles; the hemispherical particles face the display module and are planes, and the hemispherical particles face the protective cover plate and are smooth cambered surfaces.
7. The display panel according to claim 5, wherein the first scattering particles and the second scattering particles are disposed in a staggered manner in a light emitting direction of the display module.
8. The display panel according to claim 5, wherein the first reflective particles and the second reflective particles are made of transparent polyimide or polystyrene.
9. The display panel according to claim 6, wherein the color filter layers comprise a red filter layer, a green filter layer, and a blue filter layer, and a black matrix is further disposed between two of the red filter layer, the green filter layer, and the blue filter layer.
10. The display panel of claim 1, wherein the display module is one of an OLED display module, a Mini-LED display module, and a Micro-LED display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210405482.3A CN114824131B (en) | 2022-04-18 | 2022-04-18 | Display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210405482.3A CN114824131B (en) | 2022-04-18 | 2022-04-18 | Display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114824131A true CN114824131A (en) | 2022-07-29 |
| CN114824131B CN114824131B (en) | 2023-06-30 |
Family
ID=82537379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210405482.3A Active CN114824131B (en) | 2022-04-18 | 2022-04-18 | Display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114824131B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218847Y (en) * | 2008-07-14 | 2009-04-08 | 宁波高新区激智科技有限公司 | Optical diffusion film and LCD device using the same |
| CN206818900U (en) * | 2017-04-24 | 2017-12-29 | 宁波东旭成新材料科技有限公司 | A kind of high transmittance haze optical diffusion |
| CN109031487A (en) * | 2018-09-28 | 2018-12-18 | 武汉华星光电技术有限公司 | Diffusion barrier and preparation method thereof |
| CN210573819U (en) * | 2019-03-11 | 2020-05-19 | 深圳阜时科技有限公司 | Backlight module, liquid crystal display device and electronic equipment |
| CN112285971A (en) * | 2020-10-23 | 2021-01-29 | 惠州市华星光电技术有限公司 | Polarizing structure and liquid crystal display device |
| CN213184349U (en) * | 2020-11-26 | 2021-05-11 | 京东方科技集团股份有限公司 | OLED display panel and display device |
| US20220004053A1 (en) * | 2019-08-29 | 2022-01-06 | Hefei BOE Display Technology Co.,Ltd. | Liquid crystal display panel and display device |
| CN113991036A (en) * | 2021-10-12 | 2022-01-28 | 武汉华星光电半导体显示技术有限公司 | OLED display panel |
-
2022
- 2022-04-18 CN CN202210405482.3A patent/CN114824131B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201218847Y (en) * | 2008-07-14 | 2009-04-08 | 宁波高新区激智科技有限公司 | Optical diffusion film and LCD device using the same |
| CN206818900U (en) * | 2017-04-24 | 2017-12-29 | 宁波东旭成新材料科技有限公司 | A kind of high transmittance haze optical diffusion |
| CN109031487A (en) * | 2018-09-28 | 2018-12-18 | 武汉华星光电技术有限公司 | Diffusion barrier and preparation method thereof |
| CN210573819U (en) * | 2019-03-11 | 2020-05-19 | 深圳阜时科技有限公司 | Backlight module, liquid crystal display device and electronic equipment |
| US20220004053A1 (en) * | 2019-08-29 | 2022-01-06 | Hefei BOE Display Technology Co.,Ltd. | Liquid crystal display panel and display device |
| CN112285971A (en) * | 2020-10-23 | 2021-01-29 | 惠州市华星光电技术有限公司 | Polarizing structure and liquid crystal display device |
| CN213184349U (en) * | 2020-11-26 | 2021-05-11 | 京东方科技集团股份有限公司 | OLED display panel and display device |
| CN113991036A (en) * | 2021-10-12 | 2022-01-28 | 武汉华星光电半导体显示技术有限公司 | OLED display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114824131B (en) | 2023-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8149495B2 (en) | Reflective display having improved brightness and contrast | |
| JP2002107519A (en) | Reflection type display unit, retroreflector | |
| KR102520111B1 (en) | Polarizinig light emitting plate and display device having the same | |
| JP2001318379A (en) | Reflection liquid crystal display device | |
| JP2001215333A (en) | Semitransmissive semireflective polarizing element | |
| KR20040004168A (en) | Lighting system and display | |
| JP2002359068A (en) | El device, el display, el lighting system, liquid crystal device using this lighting system and electronic equipment | |
| JP2002359069A (en) | El device, el display, el lighting system, liquid crystal device using this lighting system and electronic equipment | |
| JP3187385B2 (en) | Liquid crystal display | |
| CN114824131A (en) | Display panel | |
| JP2001133776A (en) | Reflection type liquid crystal display device | |
| JP4112663B2 (en) | Liquid crystal display | |
| JP2004151559A (en) | Display unit and electronic device | |
| JP2001183646A (en) | Liquid crystal display device | |
| JP2001305542A (en) | Liquid crystal display device | |
| JP4388178B2 (en) | Liquid crystal display | |
| JP2001183663A (en) | Reflection type liquid crystal display device | |
| JPH06250169A (en) | Illuminator and liquid crystal display device | |
| JPH08166604A (en) | Reflection type liquid crystal display element | |
| CN218763000U (en) | Light scattering assembly and LED display screen | |
| JP2003195053A (en) | Polarizing plate and liquid crystal display device | |
| TWI721635B (en) | Structure of a display device | |
| JP3023860B2 (en) | Transmission scattering type optical device and transmission scattering type display device using the same | |
| JP2000137216A (en) | Liquid crystal display device | |
| JPH04142528A (en) | Projection type display device and lighting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |