CN113985644B - Display panel and terminal equipment - Google Patents
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- CN113985644B CN113985644B CN202111299096.2A CN202111299096A CN113985644B CN 113985644 B CN113985644 B CN 113985644B CN 202111299096 A CN202111299096 A CN 202111299096A CN 113985644 B CN113985644 B CN 113985644B
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- 239000000758 substrate Substances 0.000 claims abstract description 123
- 230000000007 visual effect Effects 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 45
- 239000002184 metal Substances 0.000 claims description 45
- 239000004973 liquid crystal related substance Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 6
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 5
- LWUVWAREOOAHDW-UHFFFAOYSA-N lead silver Chemical compound [Ag].[Pb] LWUVWAREOOAHDW-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 18
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 229920002120 photoresistant polymer Polymers 0.000 description 12
- 239000011159 matrix material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000010408 film Substances 0.000 description 7
- 238000002834 transmittance Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
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- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- 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
- G02F1/133553—Reflecting elements
-
- 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
- G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the application provides a display panel and terminal equipment; the display panel comprises a first substrate and a second substrate, wherein a visual angle adjusting layer is further arranged on the second substrate, the visual angle adjusting layer comprises a plurality of microstructures, the microstructures further comprise a first inclination angle adjusting layer and a second inclination angle adjusting layer, and the edge inclination angle of the second inclination angle adjusting layer is smaller than that of the first inclination angle adjusting layer; above-mentioned display panel is through preparing the visual angle adjustment layer between first base plate and second base plate, and the visual angle adjustment layer includes a plurality of micro-structures to make the first base plate exit to the partial emergence light of micro-structure take place diffuse reflection, make above-mentioned visual angle adjustment layer can possess transmission and diffuse reflection's effect simultaneously, and then make this display panel homoenergetic present good display effect under dim light and highlight environment, further when having increased the light utilization ratio of display panel's backlight, still further realized display panel's wide visual angle shows.
Description
Technical Field
The application relates to the field of display, in particular to a display panel and terminal equipment.
Background
Among the existing liquid crystal display panels, the transflective liquid crystal display panel has good display quality in both low light environment and high light environment because the transflective liquid crystal display panel combines the advantages of the transmissive display mode and the reflective display mode.
Current transflective lcd panels require a transflective device between the lc layer and the backlight, which is mainly used to reflect part of the ambient incident light and to transmit part of the backlight to the viewer. However, the reflection principle of the metal transflector is specular reflection, which leads to narrowing of the viewing angle of the liquid crystal display panel, thereby reducing the display effect of the liquid crystal display panel.
Therefore, a display panel and a terminal device are needed to solve the above-mentioned problems.
Disclosure of Invention
The embodiment of the application provides a display panel and terminal equipment, which can improve the technical problem that the visual angle of a semi-transparent and semi-reflective liquid crystal display panel in the prior art is narrower.
The embodiment of the application provides a display panel, which comprises a first substrate and a second substrate which is arranged opposite to the first substrate, wherein a viewing angle adjusting layer is further arranged on one side, close to the first substrate, of the second substrate, the viewing angle adjusting layer comprises a plurality of microstructures, and the microstructures further comprise a first inclination angle adjusting layer arranged on the second substrate and a second inclination angle adjusting layer which is arranged on the second substrate and completely covers the first inclination angle adjusting layer;
wherein, the edge inclination angle of the second inclination angle adjusting layer is smaller than the edge inclination angle of the first inclination angle adjusting layer.
Optionally, in some embodiments of the present application, the materials of the first inclination adjustment layer and the second inclination adjustment layer are organic photoresists;
wherein the viscosity of the second inclination adjustment layer is less than the viscosity of the first inclination adjustment layer.
Optionally, in some embodiments of the present application, the viewing angle adjusting layer further includes a metal layer disposed on the microstructure, and a material of the metal layer is any one of aluminum, silver, and silver-lead alloy.
Optionally, in some embodiments of the present application, the orthographic projection of the metal layer on the second substrate coincides with the orthographic projection of the microstructure on the second substrate;
wherein the thickness of the metal layer ranges from 10nm to 50 nm.
Optionally, in some embodiments of the present application, the metal layer includes a plurality of openings, and an opening area of each of the openings is equal;
wherein the thickness of the metal layer ranges from 100nm to 500 nm.
Optionally, in some embodiments of the present application, a sum of opening areas of the plurality of openings accounts for a percentage of a total pixel area of the display panel in a range of 10% to 30%.
Optionally, in some embodiments of the present application, the second inclination adjustment layer includes a plurality of protrusions, and a protrusion direction of the protrusions is consistent with a light emitting direction of the display panel.
Optionally, in some embodiments of the present application, the edge inclination of the protrusion ranges from 4 ° to 16 °, the pitch of the two ends of the edge of the protrusion ranges from 4um to 24um, and the height of the protrusion ranges from 0.35um to 3.44 um.
Optionally, in some embodiments of the present application, the display panel further includes a liquid crystal layer disposed between the first substrate and the second substrate, and a pixel electrode is disposed on a side of the first substrate near the liquid crystal layer;
the metal layer in the view angle adjusting layer is arranged opposite to the pixel electrode and is multiplexed into a common electrode.
Correspondingly, the embodiment of the application also provides terminal equipment, which comprises a terminal main body and the display panel, wherein the terminal main body and the display panel are combined into a whole.
The embodiment of the application provides a display panel and terminal equipment; the display panel comprises a first substrate, a second substrate arranged opposite to the first substrate, and a viewing angle adjusting layer arranged on one side, close to the first substrate, of the second substrate, wherein the viewing angle adjusting layer comprises a plurality of microstructures, and the microstructures also comprise a first inclination angle adjusting layer arranged on the second substrate and a second inclination angle adjusting layer arranged on the second substrate and completely covering the first inclination angle adjusting layer, and the edge inclination angle of the second inclination angle adjusting layer is smaller than that of the first inclination angle adjusting layer; above-mentioned display panel is through first base plate with preparation visual angle adjustment layer between the second base plate, just visual angle adjustment layer includes a plurality of microstructures, the microstructure still includes first inclination adjustment layer and second inclination adjustment layer, the edge inclination of second inclination adjustment layer is less than the edge inclination of first inclination adjustment layer, thereby makes first base plate exit to the diffuse reflection takes place for the partial exit light of microstructure for above-mentioned visual angle adjustment layer can possess transmission and diffuse reflection's effect simultaneously, and then makes this display panel homoenergetic present good display effect under dim light and highlight environment, further has realized still that display panel's wide viewing angle shows when having increased display panel's backlight's light utilization ratio.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional structure of a display panel according to a first embodiment of the present disclosure;
FIG. 2A is a side view of a microstructure in a display panel according to a first embodiment of the present disclosure;
fig. 2B is a top view of a microstructure in a display panel according to a first embodiment of the present disclosure;
fig. 3 is a light path diagram of a display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic cross-sectional structure of a display panel according to a second embodiment of the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The embodiments of the present application address the technical problem that the viewing angle of the transflective lcd panel 100 in the prior art is narrower, and can improve the technical problem.
The technical solutions of the present application will now be described with reference to specific embodiments.
Referring to fig. 1 to 4, the embodiment of the present application provides a display panel 100, which includes a first substrate 11 and a second substrate 21 disposed opposite to the first substrate 11, wherein a viewing angle adjusting layer 24 is further disposed on a side of the second substrate 21 adjacent to the first substrate 11, the viewing angle adjusting layer 24 includes a plurality of microstructures, and the microstructures further include a first inclination angle adjusting layer 241 disposed on the second substrate 21 and a second inclination angle adjusting layer 242 disposed on the second substrate 21 and completely covering the first inclination angle adjusting layer 241;
wherein, the edge inclination angle beta of the second inclination angle adjusting layer 242 is smaller than the edge inclination angle alpha of the first inclination angle adjusting layer 241.
The display panel 100 provided by the embodiment of the application prepares the viewing angle adjusting layer 24 between the first substrate 11 and the second substrate 21, and the viewing angle adjusting layer 24 includes a plurality of microstructures, the microstructures further include a first inclination adjusting layer 241 and a second inclination adjusting layer 242, and the edge inclination angle β of the second inclination adjusting layer 242 is smaller than the edge inclination angle α of the first inclination adjusting layer 241, so that part of emergent light emitted from the first substrate 11 to the microstructures is diffusely reflected, so that the above viewing angle adjusting layer 24 can have the effects of transmission and diffuse reflection at the same time, and the display panel 100 can exhibit good display effects in weak light and strong light environments, and further realizes wide viewing angle display of the display panel 100 while increasing the light utilization rate of the backlight of the display panel 100.
The technical solutions of the present application will now be described with reference to specific embodiments.
Example 1
Fig. 1 is a schematic cross-sectional structure of a display panel 100 according to a first embodiment of the present disclosure; the display panel 100 provided in the embodiment of the present application includes a first substrate 11, a second substrate 21, and a liquid crystal layer 31, where the first substrate 11 and the second substrate 21 are disposed opposite to each other, the liquid crystal layer 31 is disposed between the first substrate 11 and the second substrate 21, and the liquid crystal layer 31 includes a plurality of liquid crystal molecules.
In this embodiment of the present application, the display area of the first substrate 11 includes a plurality of sub-pixel areas, and a plurality of switching tubes (e.g., thin film transistors) arranged in an array are disposed on the first substrate 11, where a pixel electrode of each switching tube is disposed in a corresponding sub-pixel area. A flat layer and a first alignment layer disposed on the flat layer are further disposed on the first substrate 11, wherein the flat layer completely covers all the switching tubes and all the sub-pixel regions thereunder.
In this embodiment, a viewing angle adjusting layer 24 is further disposed on the second substrate 21 near the first substrate 11, and the viewing angle adjusting layer 24 includes a plurality of microstructures, and the microstructures further include a first inclination angle adjusting layer 241 disposed on the second substrate 21 and a second inclination angle adjusting layer 242 disposed on the second substrate 21 and completely covering the first inclination angle adjusting layer 241;
wherein, the edge inclination angle beta of the second inclination angle adjusting layer 242 is smaller than the edge inclination angle alpha of the first inclination angle adjusting layer 241.
Further, a black matrix 23 and a color filter layer 22 are disposed between the second substrate 21 and the viewing angle adjusting layer 24. Wherein the black matrix 23 is formed on the second substrate 21, the black matrix 23 may be made of black resin or metallic chrome. The switching tube formed on the first substrate 11 is opposite to the black matrix 23. The color filter layer 22 is formed on the second substrate 21 and covers the black matrix 23, wherein the color filter layer 22 includes a red color resist layer 221, a green color resist layer 222, and a blue color resist layer 223 formed in this order.
In this embodiment, the materials of the first inclination angle adjustment layer 241 and the second inclination angle adjustment layer 242 are organic photoresists; wherein the viscosity of the second inclination adjusting layer 242 is smaller than that of the first inclination adjusting layer 241. The design is such that the flatness of the organic photoresist forming the second inclination angle adjusting layer 242 is stronger than that of the organic photoresist forming the first inclination angle adjusting layer 241, so that the edge inclination angle beta of the second inclination angle adjusting layer 242 is smaller than the edge inclination angle alpha of the first inclination angle adjusting layer 241.
In this embodiment, the second inclination adjustment layer 242 includes a plurality of protrusions, and the protruding direction of the protrusions is consistent with the light emitting direction of the display panel 100. The protrusions enable the microstructure to have a diffuse reflection function. Among them, diffuse reflection is a phenomenon in which light projected on a rough surface is reflected in various directions. When a parallel incident ray is incident on a rough surface, the surface reflects the ray towards all directions, so that the incident rays are parallel to each other, and the reflected ray irregularly reflects in different directions due to the non-uniform normal directions of each point, the reflection is called diffuse reflection or diffusion, and the diffuse reflection phenomenon can change the emergent angle of the reflected ray, so that the reflected ray is uniform almost at any angle, and the aim is to be seen by observers at all positions.
Further, in the embodiment of the present application, the edge inclination angle β of the protrusion ranges from 4 ° to 16 °; if the edge inclination angle β of the protrusions is greater than or equal to 16 °, the number of the protrusions formed in the second inclination angle adjusting layer 242 is smaller, so as to affect the diffuse reflection function of the second inclination angle adjusting layer 242; if the edge inclination angle β of the protrusion is less than or equal to 4 °, the flatness of the protrusion formed in the second inclination angle adjusting layer 242 is high, and the diffuse reflection function of the second inclination angle adjusting layer 242 is also affected. Similarly, the distance L between the two ends of the edge of the protrusion ranges from 4um to 24um, and the height H of the protrusion ranges from 0.35um to 3.44 um.
In this embodiment, the viewing angle adjusting layer 24 further includes a metal layer 243 disposed on the microstructure, where a material of the metal layer 243 is any one of aluminum, silver, and silver-lead alloy; the metal layer 243 includes a plurality of openings 2431, and the openings 2431 of each of the openings 2431 have an equal area;
wherein the thickness of the metal layer 243 ranges from 100nm to 500 nm.
It was found by experiments by those skilled in the art that the transmittance of the silver-lead alloy gradually decreases with increasing film thickness, and the transmittance of the metal film can be adjusted by adjusting the film thickness by reflecting the silver-lead alloy.
Therefore, when the thickness of the metal layer 243 ranges from 100nm to 500nm, the transmittance of the metal layer 243 is close to 0, and the reflectance of the metal layer 243 is close to a percentage. At this time, the metal layer 243 serves as a reflective layer, and a first portion of the light emitted from the display panel 100 is reflected to the first substrate 11 through the metal layer 243, and a second portion of the light emitted from the display panel 100 is transmitted through the microstructure and emitted to the light emitting side of the display panel 100 after passing through the opening 2431, wherein another portion of the light is diffusely reflected to the first substrate 11 through the microstructure.
Further, in the embodiment of the present application, the sum of the opening areas of the plurality of openings 2431 is in a range of 10% to 30% of the total pixel area of the display panel 100. If the sum of the opening areas of the openings 2431 is less than or equal to 10% of the total pixel area of the display panel 100, the proportion of the outgoing light of the display panel 100 that passes through the viewing angle adjusting layer 24 and is reflected is far greater than the proportion of the outgoing light that is transmitted, so that the brightness of the display panel 100 is lowered; if the sum of the opening areas of the openings 2431 is greater than or equal to 30% of the total pixel area of the display panel 100, the proportion of the external ambient light reflected by the viewing angle adjusting layer 24 is too small, so that the display effect of the display panel 100 in the strong light environment is poor.
In this embodiment, the display panel 100 further includes a common electrode disposed on the viewing angle adjusting layer 24 and near the first substrate 11, where the common electrode is disposed opposite to the pixel electrode; wherein the metal layer 243 is multiplexed as the common electrode.
Further, a second alignment layer is further disposed on a side of the metal layer 243 near the first substrate 11. The first alignment layer and the second alignment layer are used for performing alignment treatment on the liquid crystal molecules in the liquid crystal layer 31, so as to give a proper pretilt angle to the liquid crystal molecules.
As shown in fig. 2A, a side view of a microstructure in the display panel 100 according to the first embodiment of the present application is shown; fig. 2B is a top view of the microstructure in the display panel 100 according to the first embodiment of the present application; wherein the structure of the second inclination angle adjusting layer 242 on the second substrate 21 is a continuous structure, and the optimal angle of the edge inclination angle of the second inclination angle adjusting layer 242 is 10 °; this arrangement ensures close-packed arrangement of the plurality of protrusions in the second inclination adjustment layer 242, thereby maximizing the diffuse reflection effect of the second inclination adjustment layer 242.
Further, the arrangement of the plurality of protrusions in the second inclination adjustment layer 242 in the top view direction of the display panel 100 includes any one of random arrangement, mosaic arrangement and staggered arrangement.
In an embodiment of the present application, the steps of the method for manufacturing the display panel 100 provided in the first embodiment of the present application include:
first, the first substrate 11 is prepared, the display area of the first substrate 11 includes a plurality of sub-pixel areas, and a plurality of switching transistors (for example, thin film transistors) arranged in an array are disposed on the first substrate 11, wherein a pixel electrode of each switching transistor is disposed in a corresponding sub-pixel area. A flat layer and a first alignment layer disposed on the flat layer are further disposed on the first substrate 11, wherein the flat layer completely covers all the switching tubes and all the sub-pixel regions thereunder.
Further, the first substrate 11 may be a flexible substrate or a common glass substrate.
Thereafter, the second substrate 21 is prepared, and the second substrate 21 is a metal diffuse reflection substrate. First, a first organic photoresist is coated on a substrate to make a first bump structure to form a first inclination angle adjusting layer 241, and the first inclination angle adjusting layer 241 is obtained through a yellow light process. Then, a second organic photoresist is secondarily coated on the first inclination angle adjusting layer 241, and the viscosity of the second organic photoresist is smaller than that of the first organic photoresist, so that the flatness of the second organic photoresist is better, and the prepared second inclination angle adjusting layer 242 can further reduce the edge inclination angle of the microstructure in a leveling process by means of the second organic photoresist, so that the second inclination angle adjusting layer 242 is arranged on the second substrate 21 and completely covers the first inclination angle adjusting layer 241, and the edge inclination angle beta of the second inclination angle adjusting layer 242 is smaller than the edge inclination angle alpha of the first inclination angle adjusting layer 241. Meanwhile, the second inclination adjusting layer 242 is made to include a plurality of protrusions, and the protruding direction of the protrusions is identical to the light emitting direction of the display panel 100.
Wherein the second inclination angle adjusting layer 242 prepared by the secondary photoresist coating can have a low edge inclination angle, thereby having a good diffuse reflection effect.
Then, evaporating the metal layer 243 on the surface of the second inclination angle adjusting layer 242 far from the side of the second substrate 21 by a physical vapor deposition method, and etching and perforating the metal layer 243 by a yellow light process, wherein the opening area of the metal layer 243 is a transmission area of the display panel 100, and the non-opening area of the metal layer 243 is a reflection area of the display panel 100. Wherein the first and second inclination adjustment layers 241 and 242 form the microstructure, and the microstructure and the metal layer 243 form the viewing angle adjusting layer 24.
Then, a black matrix 23 and a color filter layer 22 are disposed between the second substrate 21 and the viewing angle adjusting layer 24. Wherein the black matrix 23 is formed on the second substrate 21, the black matrix 23 may be made of black resin or metallic chrome. The switching tube formed on the first substrate 11 is opposite to the black matrix 23. The color filter layer 22 is formed on the second substrate 21 and covers the black matrix 23, wherein the color filter layer 22 includes a red color resist layer 221, a green color resist layer 222, and a blue color resist layer 223 formed in this order.
Then preparing the first alignment layer on the first substrate 11 and preparing the second alignment layer on the second substrate 21; meanwhile, the first substrate 11 and the second substrate 21 are aligned, and liquid crystal and a frame glue are dropped between the first substrate 11 and the second substrate 21 to form the liquid crystal layer 31.
Finally, the first substrate 11 and the second substrate 21 are bonded to each other, thereby obtaining the display panel 100.
In the above embodiments of the present application, the built-in microstructure with a low-angle edge inclination angle is difficult to be formed in one step corresponding to a yellow light process (the edge inclination angle prepared by the yellow light process is usually greater than 30 °), so that the built-in microstructure with a low-angle edge inclination angle is hardly formed in one step. Therefore, the built-in microstructure with the low-angle edge inclination angle prepared by the secondary photoresist coating method can better meet the diffuse reflection effect of the microstructure.
As shown in fig. 3, an optical path diagram of the display panel 100 according to an embodiment of the present application is shown; in the display panel 100 provided in this embodiment of the present application, the viewing angle adjusting layer 24 is a transflective film layer, the transflective film layer can transmit and reflect light, and the proportion of the transmitted incident light and the proportion of the reflected incident light in the transflective film layer can be adjusted according to the actual optical requirement.
Specifically, the plurality of microstructures in the viewing angle adjusting layer 24 can change the reflection direction of the backlight emitted by the backlight module at the viewing angle adjusting layer 24. In detail, the first backlight L1 emitted by the backlight module is reflected by the metal layer 243 to form first reflected light L1', and the second backlight L2 emitted by the backlight module is diffusely reflected by the opening 2431 of the metal layer 243 to form second reflected light L2', and the other part is emitted to the light-emitting side of the display panel 100 after passing through the microstructure; meanwhile, when the external ambient light is reflected to the viewing angle adjusting layer 24 through the second substrate 21, a part of the ambient light L3 is incident to the first substrate 11 through the microstructure, and another part of the ambient light L4 is reflected to the light emitting side of the display panel 100 after passing through the metal layer 243 to form fourth reflected light L4'. Finally, the first reflected light L1 'and the second reflected light L2' after being reflected for multiple times finally pass through the microstructure and then exit to the light emitting side of the display panel 100.
Further, the viewing angle adjusting layer 24 can reflect a part of external ambient light, so that the display panel 100 can maintain a good display effect in a strong light environment; the diffuse reflection phenomenon occurs after the part of the backlight emitted by the backlight module passes through the viewing angle adjusting layer 24, so that the light utilization rate of the backlight module can be further increased.
Aiming at the technical problem that the viewing angle of the transflective liquid crystal display panel 100 in the prior art is narrow; the display panel 100 provided in this embodiment of the present disclosure includes a first substrate 11, and a second substrate 21 disposed opposite to the first substrate 11, where a viewing angle adjusting layer 24 is further disposed on a side of the second substrate 21, which is close to the first substrate 11, and the viewing angle adjusting layer 24 includes a plurality of microstructures, and the microstructures further include a first inclination angle adjusting layer 241 disposed on the second substrate 21, and a second inclination angle adjusting layer 242 disposed on the second substrate 21 and completely covering the first inclination angle adjusting layer 241, where an edge inclination angle β of the second inclination angle adjusting layer 242 is smaller than an edge inclination angle α of the first inclination angle adjusting layer 241; according to the display panel 100, the viewing angle adjusting layer 24 is prepared between the first substrate 11 and the second substrate 21, and the viewing angle adjusting layer 24 comprises a plurality of microstructures, the microstructures further comprise the first inclination angle adjusting layer 241 and the second inclination angle adjusting layer 242, and the edge inclination angle beta of the second inclination angle adjusting layer 242 is smaller than the edge inclination angle alpha of the first inclination angle adjusting layer 241, so that part of emergent light emitted from the first substrate 11 to the microstructures is subjected to diffuse reflection, the viewing angle adjusting layer 24 can have the effects of transmission and diffuse reflection, the display panel 100 can show good display effects in weak light and strong light environments, and the wide viewing angle display of the display panel 100 is further realized while the light utilization rate of a backlight source of the display panel 100 is increased.
Example two
Fig. 4 is a schematic cross-sectional structure of a display panel 100 according to a second embodiment of the present disclosure; the structure of the display panel 100 in the second embodiment of the present application is the same as or similar to the structure of the display panel 100 in the first embodiment of the present application, and the only difference is that the orthographic projection of the metal layer 243 on the second substrate 21 coincides with the orthographic projection of the microstructure on the second substrate 21;
wherein the thickness of the metal layer 243 ranges from 10nm to 50 nm.
Specifically, when the thickness of the metal layer 243 is in the range of 10nm to 50nm, the reflectivity and transmittance of the metal layer 243 are not 0, and when the incident light irradiates the metal layer 243, a part of the incident light can pass through the metal layer 243 and another part of the incident light is reflected by the reflective layer.
Further, when the thickness of the metal layer 243 is less than or equal to 10nm, the reflectivity of the metal layer 243 is too low, and when the thickness of the metal layer 243 is greater than or equal to 50nm, the transmissivity of the metal layer 243 is too low.
Aiming at the technical problem that the viewing angle of the transflective liquid crystal display panel 100 in the prior art is narrow; the display panel 100 provided in this embodiment of the present disclosure includes a first substrate 11, and a second substrate 21 disposed opposite to the first substrate 11, where a viewing angle adjusting layer 24 is further disposed on a side of the second substrate 21, which is close to the first substrate 11, and the viewing angle adjusting layer 24 includes a plurality of microstructures, and the microstructures further include a first inclination angle adjusting layer 241 disposed on the second substrate 21, and a second inclination angle adjusting layer 242 disposed on the second substrate 21 and completely covering the first inclination angle adjusting layer 241, where an edge inclination angle β of the second inclination angle adjusting layer 242 is smaller than an edge inclination angle α of the first inclination angle adjusting layer 241; according to the display panel 100, the viewing angle adjusting layer 24 is prepared between the first substrate 11 and the second substrate 21, and the viewing angle adjusting layer 24 comprises a plurality of microstructures, the microstructures further comprise the first inclination angle adjusting layer 241 and the second inclination angle adjusting layer 242, and the edge inclination angle beta of the second inclination angle adjusting layer 242 is smaller than the edge inclination angle alpha of the first inclination angle adjusting layer 241, so that part of emergent light emitted from the first substrate 11 to the microstructures is subjected to diffuse reflection, the viewing angle adjusting layer 24 can have the effects of transmission and diffuse reflection, the display panel 100 can show good display effects in weak light and strong light environments, and the wide viewing angle display of the display panel 100 is further realized while the light utilization rate of a backlight source of the display panel 100 is increased.
In addition, compared with the display panel 100 provided in the first embodiment of the present application, the display panel 100 provided in the second embodiment of the present application has a lower film thickness requirement for preparing the metal layer 243 in the viewing angle adjusting layer 24 and does not require an opening treatment, so that a photomask process can be reduced, and the process cost of the display panel 100 is lower.
Accordingly, embodiments of the present application further provide a terminal device, where the terminal device includes a terminal body and the display panel 100 as set forth in any one of the above, and the terminal body is integrated with the display panel 100. The terminal equipment has wide application space on vehicle-mounted, mobile phones, tablets, computers, outdoor advertising screens and television products.
The embodiment of the application provides a display panel 100 and a terminal device; the display panel 100 comprises a first substrate 11, a second substrate 21 opposite to the first substrate 11, and a viewing angle adjusting layer 24 arranged on one side of the second substrate 21 close to the first substrate 11, wherein the viewing angle adjusting layer 24 comprises a plurality of microstructures, the microstructures further comprise a first inclination angle adjusting layer 241 arranged on the second substrate 21 and a second inclination angle adjusting layer 242 arranged on the second substrate 21 and completely covering the first inclination angle adjusting layer 241, and the edge inclination angle alpha of the second inclination angle adjusting layer 242 is smaller than the edge inclination angle alpha of the first inclination angle adjusting layer 241; according to the display panel 100, the viewing angle adjusting layer 24 is prepared between the first substrate 11 and the second substrate 21, and the viewing angle adjusting layer 24 comprises a plurality of microstructures, the microstructures further comprise the first inclination angle adjusting layer 241 and the second inclination angle adjusting layer 242, and the edge inclination angle beta of the second inclination angle adjusting layer 242 is smaller than the edge inclination angle alpha of the first inclination angle adjusting layer 241, so that part of emergent light emitted from the first substrate 11 to the microstructures is subjected to diffuse reflection, the viewing angle adjusting layer 24 can have the effects of transmission and diffuse reflection, the display panel 100 can show good display effects in weak light and strong light environments, and the wide viewing angle display of the display panel 100 is further realized while the light utilization rate of a backlight source of the display panel 100 is increased.
The foregoing has described in detail a display panel 100 and a terminal device provided in the embodiments of the present application, and specific examples have been applied herein to illustrate the principles and implementations of the present application, where the foregoing examples are only for aiding in understanding the methods and core ideas of the present application; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (5)
1. The display panel is characterized by comprising a first substrate and a second substrate which is arranged opposite to the first substrate, wherein a viewing angle adjusting layer is further arranged on one side, close to the first substrate, of the second substrate, the viewing angle adjusting layer comprises a plurality of microstructures, and the microstructures further comprise a first inclination angle adjusting layer arranged on the second substrate and a second inclination angle adjusting layer which is arranged on the second substrate and completely covers the first inclination angle adjusting layer;
wherein the materials of the first inclination angle adjusting layer and the second inclination angle adjusting layer are organic photoresistors; the viscosity of the second inclination angle adjusting layer is smaller than that of the first inclination angle adjusting layer, and the edge inclination angle of the second inclination angle adjusting layer is smaller than that of the first inclination angle adjusting layer;
the visual angle adjusting layer further comprises a metal layer arranged on the microstructure, wherein the metal layer comprises a plurality of openings, and the opening area of each opening is equal; the sum of the opening areas of the plurality of openings accounts for 10 to 30 percent of the total pixel area of the display panel;
the second inclination adjusting layer comprises a plurality of bulges, the inclination angle range of the edges of the bulges is between 4 and 16 degrees, the interval range of the two ends of the edges of the bulges is between 4 and 24um, and the height range of the bulges is between 0.35 and 3.44 um.
2. The display panel according to claim 1, wherein the material of the metal layer is any one of aluminum, silver, and a silver-lead alloy.
3. The display panel of claim 2, wherein the metal layer has a thickness in a range between 100nm and 500 nm.
4. The display panel according to claim 2, further comprising a liquid crystal layer disposed between the first substrate and the second substrate, wherein a pixel electrode is disposed on a side of the first substrate adjacent to the liquid crystal layer;
the metal layer in the view angle adjusting layer is arranged opposite to the pixel electrode and is multiplexed into a common electrode.
5. A terminal device comprising a terminal body and the display panel according to any one of claims 1 to 4, the terminal body being integrated with the display panel.
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| CN202111299096.2A CN113985644B (en) | 2021-11-04 | 2021-11-04 | Display panel and terminal equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6266111B1 (en) * | 1998-03-10 | 2001-07-24 | Sony Corporation | Diffuse reflection plate, manufacturing method thereof, and reflection-type display device |
| CN1639592A (en) * | 2001-10-04 | 2005-07-13 | 皇家飞利浦电子股份有限公司 | Optical reflector and display device using it |
| CN108490678A (en) * | 2018-03-28 | 2018-09-04 | 武汉华星光电技术有限公司 | Color membrane substrates and preparation method thereof, liquid crystal display panel |
| TW201903485A (en) * | 2017-06-06 | 2019-01-16 | 凌巨科技股份有限公司 | Method of designing reflective layer and display apparatus thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3866522B2 (en) * | 2001-02-14 | 2007-01-10 | 日本電気株式会社 | Active matrix liquid crystal display device and manufacturing method thereof |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6266111B1 (en) * | 1998-03-10 | 2001-07-24 | Sony Corporation | Diffuse reflection plate, manufacturing method thereof, and reflection-type display device |
| CN1639592A (en) * | 2001-10-04 | 2005-07-13 | 皇家飞利浦电子股份有限公司 | Optical reflector and display device using it |
| TW201903485A (en) * | 2017-06-06 | 2019-01-16 | 凌巨科技股份有限公司 | Method of designing reflective layer and display apparatus thereof |
| CN108490678A (en) * | 2018-03-28 | 2018-09-04 | 武汉华星光电技术有限公司 | Color membrane substrates and preparation method thereof, liquid crystal display panel |
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