CN113985641B - Color film substrate, display panel and manufacturing method of color film substrate - Google Patents
Color film substrate, display panel and manufacturing method of color film substrate Download PDFInfo
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- CN113985641B CN113985641B CN202111246557.XA CN202111246557A CN113985641B CN 113985641 B CN113985641 B CN 113985641B CN 202111246557 A CN202111246557 A CN 202111246557A CN 113985641 B CN113985641 B CN 113985641B
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- 239000000758 substrate Substances 0.000 title claims abstract description 224
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- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
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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
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
Abstract
The embodiment of the application discloses a color film substrate, a display panel and a manufacturing method of the color film substrate. The color film substrate comprises a substrate and a plurality of refraction layers, wherein the refraction layers are sequentially arranged on the substrate, the refraction indexes of two adjacent refraction layers are different, and the refraction index of the refraction layer close to the substrate in the plurality of refraction layers is different from that of the substrate. According to the application, the refraction layers with different refractive indexes are arranged, so that light rays emitted from different positions can reach the same observation point after being refracted by the multi-layer refraction layers, the color cast problem of different observation points is solved, and the visual angle of the color film substrate is improved.
Description
Technical Field
The application relates to the field of display, in particular to a color film substrate, a display panel and a manufacturing method of the color film substrate.
Background
Along with the development of display technology, the problem of viewing angle of a display panel gradually becomes the primary technology of high-end products, but the emergent angle of a color film substrate in the display panel is single at present, so that color cast exists at different observation points, and the viewing angle of the color film substrate is smaller.
Disclosure of Invention
The embodiment of the application provides a color film substrate, a display panel and a manufacturing method of the color film substrate, which can solve the problem of small visual angle of the color film substrate.
The embodiment of the application provides a color film substrate, which comprises:
a substrate base;
the multi-layer refraction layers are sequentially arranged on the substrate, and the refractive indexes of two adjacent layers of refraction layers are different; and the refractive index of the refractive layers close to the substrate in the plurality of layers is different from that of the substrate.
Alternatively, in some embodiments of the present application, the refractive indices of the plurality of refractive layers are not the same.
Alternatively, in some embodiments of the present application, a surface of at least one of the refractive layers is provided with a plurality of protrusions in parallel, and a first gap is provided between adjacent protrusions.
Alternatively, in some embodiments of the present application, the cross-sectional area of the protrusion increases gradually in a direction approaching the substrate base plate; or alternatively, the first and second heat exchangers may be,
the cross-sectional area of the protrusion gradually decreases in a direction approaching the substrate base plate.
Alternatively, in some embodiments of the present application, the refractive index of the plurality of refractive layers increases gradually in a direction away from the substrate base plate; or alternatively, the first and second heat exchangers may be,
the refractive index of the plurality of refractive layers gradually decreases in a direction away from the substrate base plate.
Alternatively, in some embodiments of the present application, the thickness of the plurality of refractive layers increases gradually in a direction away from the substrate base plate; or alternatively, the first and second heat exchangers may be,
the thickness of the plurality of refractive layers gradually decreases in a direction away from the substrate base plate.
Alternatively, in some embodiments of the application, the sum of the thicknesses of the multiple layers of the refractive layer is greater than or equal to 10 nanometers and less than or equal to 3000 nanometers.
Optionally, in some embodiments of the present application, the material of the refraction layer includes one or more of silicon oxide, silicon nitride, and silicon oxynitride.
Optionally, in some embodiments of the present application, the color film substrate includes a plurality of wire grids, where the plurality of wire grids are arranged on the substrate in parallel, and a second gap is between two adjacent wire grids.
Optionally, in some embodiments of the application, the direction of extension of the protrusions is the same as the direction of extension of the wire grid; the distribution direction of the plurality of protrusions is the same as the distribution direction of the plurality of wire grids.
Optionally, in some embodiments of the present application, the first gap and the second gap are offset in a thickness direction of the substrate.
Alternatively, in some embodiments of the present application, the substrate has a first side and a second side opposite to each other, a plurality of the wire grids are arranged on the first side in parallel, and a plurality of the refraction layers are arranged on the wire grids in sequence; the color film substrate further comprises a color resistance layer, and the color resistance layer is arranged on the second side face.
Correspondingly, the embodiment of the application also provides a display panel, which comprises:
the color film substrate of any one of the above;
the array substrate is positioned on the second side surface of the substrate in the color film substrate; a kind of electronic device with high-pressure air-conditioning system
And the liquid crystal layer is filled between the color film substrate and the array substrate.
Correspondingly, the embodiment of the application also provides a manufacturing method of the color film substrate, which comprises the following steps:
providing a substrate base plate;
forming a plurality of wire grids on the substrate, wherein the wire grids are arranged in parallel;
and sequentially forming a plurality of refraction layers on the substrate, wherein the refraction indexes of two adjacent refraction layers are different, and the refraction indexes of the refraction layers close to the substrate in the plurality of refraction layers are different from the refraction indexes of the substrate.
The color film substrate comprises a substrate and a plurality of refraction layers sequentially arranged on the substrate, wherein the refraction indexes of two adjacent refraction layers are different, and the refraction index of the refraction layer close to the substrate in the plurality of refraction layers is different from that of the substrate. By arranging the refraction layers with different refractive indexes, light rays emitted from different positions can reach the same observation point after being refracted by the multi-layer refraction layers, so that the color cast problem of different observation points is solved, and the visual angle of the color film substrate is improved.
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 described 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 structural diagram of a color film substrate according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application;
FIG. 3 is a flowchart of a method for manufacturing a color film substrate according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of step S200 in fig. 3 according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of step S300 in fig. 3 according to an embodiment of the present application.
Reference numerals illustrate:
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present 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 embodiment of the application provides a color film substrate, a display panel and a manufacturing method of the color film substrate. The following will describe in detail. The following description of the embodiments is not intended to limit the preferred embodiments.
Firstly, the embodiment of the application provides a color film substrate, which comprises a substrate and a plurality of refraction layers, wherein the refraction layers are sequentially arranged on the substrate, the refraction indexes of two adjacent refraction layers are different, and the refraction index of the refraction layer close to the substrate in the plurality of refraction layers is different from the refraction index of the substrate.
Fig. 1 is a schematic structural diagram of a color film substrate according to an embodiment of the present application, and as shown in fig. 1, a color film substrate 100 includes a substrate 110 for supporting each film layer structure of the color film substrate 100. The substrate 110 may be a glass substrate or other types of substrates, and the specific materials thereof may be adjusted according to the actual design requirements, which is not limited herein.
It should be noted that, because the color film substrate 100 is entirely located at the light emitting side, in order to ensure the light emitting rate of the color film substrate 100, the substrate 110 needs to have good light transmittance, so that a great amount of loss is avoided when light passes through the substrate 110, and the light emitting rate effect of the color film substrate 100 is improved.
The color film substrate 100 includes a plurality of refraction layers 120, the plurality of refraction layers 120 are sequentially disposed on the substrate 110 along a direction away from the substrate 110, and when the emergent light passes through the refraction layers 120, the emergent light is emitted at different angles under the refraction action of the refraction layers 120, so as to reach different observation points. By adjusting the refractive index of the refractive layer 120, the exit angle of the exiting light can be changed to meet the light requirements of different observation points.
The refractive indexes of the two adjacent refractive layers 120 are different, that is, the emergent angle of the light can be changed when the light passes through one refractive layer 120, and the emergent angle of the light can be controlled by adjusting the refractive index of the adjacent refractive layer 120, so that the emergent light emitted from different positions can reach the same observation point, thereby improving the color cast problem of different observation points and improving the display effect of the color film substrate 100.
It should be noted that, except for the refractive indexes of the two adjacent refractive layers 120, the refractive indexes of the refractive layers 120 that are disposed at intervals can be the same or different, and the specific arrangement mode thereof can be adjusted according to the actual design requirement, so that the emergent light emitted from different positions can reach the same observation point, and the display effect of the color film substrate 100 can be improved.
Optionally, the refractive index of the refractive layer 120 of the multi-layer refractive layer 120 near the substrate 110 is different from the refractive index of the substrate 110, that is, the angle of the light entering the substrate 110 from the refractive layer 120 or entering the refractive layer 120 from the substrate 110 is changed, and at this time, the substrate 110 can also act as the refractive layer 120 to adjust the outgoing angle and direction of the outgoing light.
In the embodiment of the application, the color film substrate 100 includes a substrate 110 and a plurality of refraction layers 120 sequentially disposed on the substrate 110, and the refraction indexes of two adjacent refraction layers 120 are different, the refraction index of the refraction layer 120 close to the substrate 110 in the plurality of refraction layers 120 is different from the refraction index of the substrate 110, and by disposing the refraction layers 120 with different refraction indexes, the light rays emitted from different positions can reach the same observation point after being refracted by the plurality of refraction layers 120, so that the color cast problem of different observation points is improved, and the display effect of the color film substrate 100 is improved.
Optionally, the refractive indexes of the multiple refractive layers 120 are different, that is, the refractive indexes of each refractive layer 120 are different, so as to further adjust the emergent angle of the emergent light, so that one observation point can receive emergent light rays at more positions, and further improve the color cast problem of the observation point.
The refractive index setting rule of each refractive layer 120 can be adjusted according to design requirements, and the refractive layers 120 with different refractive indexes are matched for use, so that light rays emitted from different positions reach the same observation point.
Optionally, in this embodiment of the present application, a plurality of protrusions 121 are disposed on a surface of at least one refraction layer 120 in parallel, and a first gap 122 is formed between adjacent protrusions 121. That is, after the refraction layer 120 is formed on the substrate 110, the surface of the refraction layer 120 is treated by etching or the like, so that a plurality of protrusions 121 are formed on the surface of the refraction layer 120 in parallel. When the outgoing light enters the refraction layer 120, the outgoing angle of the outgoing light is more varied due to the different shapes of the protrusions 121, so that the adjustment of the outgoing angle of the outgoing light is facilitated.
When the refraction layer 120 with the protrusion 121 structure is continuously arranged on the refraction layer 120, the adjacent refraction layers 120 are filled in the first gaps 122 of the protrusions 121, so that the emergent light can be refracted into the adjacent refraction layers 120 when passing through the protrusions 121 and entering the first gaps 122, and the emergent angle can be changed when the emergent light enters the first gaps 122 due to different refractive indexes of the adjacent refraction layers 120. The refractive index of the adjacent refractive layers 120 and the structure of the protrusion 121 are matched with each other, so that the emergent angle of emergent light can be further adjusted, and the light rays emitted from different positions reach the same observation point.
Optionally, after the adjacent refraction layer 120 fills the first gaps 122 between the plurality of protrusions 121, the surface of the refraction layer 120 can be further provided with the plurality of protrusions 121, that is, the protrusions 121 can be formed on both sides of the refraction layer 120, so as to enhance adjustment of the outgoing angle of the outgoing light.
In some embodiments, the side of the refractive layer 120, which is spaced apart from the substrate 110, of the multi-layer refractive layer 120 is formed with a bump 121 structure, and since the adjacent refractive layer 120 fills the first gap 122 between the bump 121 structures, the arrangement direction of the bump 121 structures on the multi-layer refractive layer 120 is alternately arranged, i.e. the bump 121 structures are alternately arranged on the side of the refractive layer 120, which is spaced apart from the substrate 110, and the side of the bump 121 structures, which is located near the substrate 110, of the refractive layer 120.
In other embodiments, a bump 121 structure is disposed on a side of each refraction layer 120 away from the substrate 110, and since the adjacent refraction layers 120 fill the first gaps 122 between the bump 121 structures, the bump 121 structures are disposed on both sides of the rest of the refraction layers 120 except for the first and last refraction layers 120. This structural design allows the exit angle to be changed multiple times as the exit light passes through each refractive layer 120, thereby increasing the range of change in the exit angle of the exit light.
Optionally, the cross-sectional area of the protrusion 121 gradually increases along the direction close to the substrate 110, or the cross-sectional area of the protrusion 121 gradually decreases along the direction close to the substrate 110, so that the emergent angles and emergent directions when the emergent light reaches different positions on the side surface of the structure of the protrusion 121 are different, and the range of the emergent angle of the emergent light can be adjusted by adjusting the change trend of the cross-sectional area of the protrusion 121.
The bump 121 may be in a bar shape, a cone shape, or any other regular or irregular shape, so long as the cross-sectional area of the bump 121 is gradually increased or decreased in a direction approaching the substrate 110, that is, the side surface of the bump 121 forms an acute angle with the surface of the substrate 110, which is not particularly limited herein.
It should be noted that, when the structure of the protrusion 121 on one refraction layer 120 is a regular triangular prism or a regular trapezoid, the cross section of the protrusion 121 on the adjacent refraction layer 120 filled with the refraction layer 120 is an inverted triangular prism or an inverted trapezoid, so as to realize the mutual coordination between the adjacent refraction layers 120, and also facilitate the control of the emergent angle of the emergent light.
Optionally, in the embodiment of the present application, the refractive index of the multi-layer refractive layer 120 gradually increases along the direction away from the substrate 110, that is, the outgoing light rays deflect in the same direction when passing through the refractive layer 120 layer by layer, so that the arrangement is beneficial to estimating the outgoing angle of the outgoing light rays, improving the controllability of the outgoing angle of the outgoing light rays, and facilitating the targeted adjustment of the viewing angle of the color film substrate 100.
Similarly, the refractive index of the multi-layer refractive layer 120 can be gradually reduced along the direction away from the substrate 110, that is, the emergent light beam is deflected towards another direction when passing through the refractive layer 120 layer by layer, so as to improve the color cast problem of a certain observation point and improve the display effect of the color film substrate 100.
It should be noted that, when the refractive index distribution manner of the multilayer refractive layer 120 is designed, the refractive index distribution manner can be adjusted according to practical application requirements, for example, the refractive index of the multilayer refractive layer 120 is gradually increased and then gradually decreased, or the refractive index of the multilayer refractive layer 120 is gradually decreased and then gradually increased, or the refractive index of the multilayer refractive layer 120 is alternately arranged, which is not limited herein.
Optionally, in the embodiment of the present application, the thickness of the multiple refractive layers 120 gradually increases along the direction away from the substrate 110, that is, the optical path of the outgoing light passing through each refractive layer 120 gradually increases, so as to gradually slow down the frequency of changing the outgoing angle of the outgoing light.
Optionally, the thickness of the multiple refractive layers 120 gradually decreases along a direction away from the substrate 110, that is, the optical path of the outgoing light passing through each refractive layer 120 gradually decreases, so as to gradually increase the frequency of changing the outgoing angle of the outgoing light.
It should be noted that, when the thickness distribution manner of the multilayer refraction layer 120 is designed, the adjustment can be performed according to practical application requirements, for example, the thickness of the multilayer refraction layer 120 is gradually increased and then gradually decreased, or the thickness of the multilayer refraction layer 120 is gradually decreased and then gradually increased, or the thickness of the multilayer refraction layer 120 is alternately arranged, which is not limited herein.
Alternatively, the sum of the thicknesses of the multi-layer refractive layers 120 in the embodiment of the present application is greater than or equal to 10nm and less than or equal to 3000 nm. If the sum of the thicknesses of the multi-layer refraction layers 120 is too large, the optical path that the outgoing light needs to travel when passing through the multi-layer refraction layers 120 is longer, and the light loss in the multi-layer refraction layers 120 is too large, so that the light transmittance of the outgoing light is smaller, and finally the display effect of the color film substrate 100 is affected; if the sum of the thicknesses of the multi-layer refraction layers 120 is too small, the multi-layer refraction layers 120 have small changes on the outgoing angle of the outgoing light, and even cannot play a role in adjusting the outgoing angle of the outgoing light.
In the actual manufacturing process, the total thickness of the multi-layer refraction layer 120 is set to 10nm, 100nm, 500nm, 1000nm, 2000nm or 3000nm, and the specific design value can be adjusted according to the requirement, and the multi-layer refraction layer 120 is only required to adjust the emergent angle of emergent light, and meanwhile, the excessive loss of the emergent light in the multi-layer refraction layer 120 is avoided, and the display effect of the color film substrate 100 is ensured.
Optionally, the material of the refraction layer 120 includes one or more of silicon oxide, silicon nitride and silicon oxynitride, and the adjustment of the refraction index of the refraction layer 120 can be achieved through the mutual matching and content adjustment of the silicon oxide, the silicon nitride and the silicon oxynitride, so as to meet the matching requirements of different refraction indexes.
The refraction layer 120 is a transparent film layer, so as to adjust the outgoing angle of the outgoing light and ensure the transmittance of the outgoing light, thereby avoiding affecting the display effect of the color film substrate 100. In addition, the refractive layer 120 can also act as an insulating layer to facilitate the fabrication of subsequent film layers.
Optionally, in the embodiment of the present application, the color film substrate 100 further includes a plurality of wire grids 130, where the plurality of wire grids 130 are disposed on the substrate 110 in parallel. The wire grids 130 can act as polarizers, i.e. have shielding and transmitting functions for incident light, and can transmit one of longitudinal light or transverse light, so as to screen emergent light, and ensure the display effect of the color film substrate 100.
In addition, the plurality of wire grids 130 have a light reflecting function, when a part of the light entering the multi-layer refraction layer 120 is reflected to the wire grids 130, the wire grids 130 can reflect the part of the light into the multi-layer refraction layer 120 again, so as to increase the light output of the emergent light and improve the display brightness of the color film substrate 100.
Optionally, the second gaps 131 are disposed between two adjacent wire grids 130, that is, the wire grids 130 are spaced apart, so that the outgoing light can be emitted through the second gaps 131 between the adjacent wire grids 130 when passing through the wire grids 130. Through the adjustment of the line width of the wire grid 130 and the width of the second gap 131, the intensity of the emergent light in different areas of the color film substrate 100 can be adjusted, so as to realize the diversity of display of the display panel 10.
In some embodiments, the widths of the second gaps 131 between the adjacent wire grids 130 are equal, that is, the wire grids 130 are uniformly distributed, so that the light output rates of the light emitted from the respective areas of the color film substrate 100 are the same by the structural design, which is helpful for improving the uniformity of the display brightness of the color film substrate 100.
In other embodiments, the width of the second gaps 131 between the wire grids 130 of each region is different, i.e., the intensity of the outgoing light of each region is different. For example, the width of the second gap 131 can be gradually increased from two side edges to the middle area, and the structural design makes the light output intensity of the color film substrate 100 gradually increased from two side edges to the middle area, that is, the closer the color film substrate 100 is to the middle area, the greater the display brightness.
Or, the width of the second gap 131 is set alternately, so that the light output intensity on the color film substrate 100 is distributed alternately, but the area with higher light output intensity can compensate the brightness of the adjacent area with lower light output intensity, so that the overall display brightness of the color film substrate 100 is still uniform.
It should be noted that, in addition to the above regular distribution, the width of the second gap 131 may also be irregularly distributed according to the requirement, that is, when a certain area of the color film substrate 100 needs a higher light output intensity, the overall width of the second gap 131 in the area is increased to increase the light output intensity in the area; when the requirement of a certain area of the color film substrate 100 on the light output intensity is low, the overall width of the second gap 131 in the area is reduced to reduce the light output amount in the area. The specific distribution of the wire grid 130 can be adjusted according to practical application requirements, and is not particularly limited herein.
Alternatively, the extending direction of the protrusions 121 on the refraction layer 120 is the same as the extending direction of the wire grids 130, and the distributing direction of the plurality of protrusions 121 is the same as the distributing direction of the plurality of wire grids 130, i.e. the distributing direction of the first gaps 122 between the plurality of protrusions 121 and the second gaps 131 between the plurality of wire grids 130 is the same. The structure design makes the structure of the first refraction layer 120 through which the light emitted from the same second gap 131 passes identical, thereby facilitating the control of the adjustment of the emission angle of the light emitted from the second gap 131.
In some embodiments, the distribution direction of the plurality of protrusions 121 on the refraction layer 120 forms an included angle with the distribution direction of the plurality of wire grids 130, that is, the extending direction of the protrusions 121 forms an included angle with the extending direction of the wire grids 130, that is, one wire grid 130 spans the area where the plurality of protrusions 121 are located, and the light emitted from one second gap 131 can be simultaneously incident into different protrusions 121 of the refraction layer 120. Through the cooperation design of protruding 121, can carry out the multi-angle to the outgoing angle of outgoing light and adjust, improve the variety of angle modulation.
The distribution direction of the protrusions 121 and the distribution direction of the wire grids 130 can be perpendicular, that is, the included angle is 90 °, and other angles can be set, only one observation point needs to be guaranteed to receive outgoing light rays at different positions, and no special limitation is made here.
Alternatively, the first gaps 122 between the plurality of protrusions 121 and the second gaps 131 between the plurality of wire grids 130 are disposed offset in the thickness direction of the substrate base 110. Because the adjacent refraction layers 120 are filled with the first gaps 122 between the plurality of protrusions 121, the structural design can enable the emitted light to reach the contact surface of the protrusions 121 of the adjacent two refraction layers 120 when the emitted light is emitted from the second gaps 131, thereby realizing twice refraction and being beneficial to the adjustment of the emergent angle and the emergent direction of the emitted light.
When the first gaps 122 between the protrusions 121 and the second gaps 131 between the wire grids 130 are correspondingly arranged in the thickness direction of the substrate 110, the light emitted from the second gaps 131 is directly emitted into the protrusion 121 structure of the other refraction layer 120 through the first gaps 122, and compared with the way that the first gaps 122 and the second gaps 131 are arranged in a staggered manner, the refraction times of the emergent light in the structural design are reduced to a certain extent, but the control of the emergent angle of the emergent light is more convenient.
Optionally, the substrate 110 includes a first side and a second side opposite to each other, the plurality of wire grids 130 are disposed on the first side, the multilayer refraction layer 120 is sequentially disposed on the wire grids 130, that is, the plurality of wire grids 130 and the multilayer refraction layer 120 are sequentially distributed along a direction away from the first side of the substrate 110, and the wire grids 130 are located at the lowest position of the multilayer refraction layer 120, so that when the outgoing light entering the refraction layer 120 is reflected onto the wire grids 130, the outgoing light entering the refraction layer 120 can be reflected again, and the outgoing light quantity of the color film substrate 100 is improved.
The plurality of wire grids 130 may also be located between two adjacent refraction layers 120, so that when the outgoing light passes through the wire grids 130, the reflected outgoing light can enter the refraction layer 120 on the side of the wire grids 130 close to the substrate 110 again, and after multiple refraction of the refraction layer 120, the outgoing light is emitted again, which can also improve the outgoing light quantity of the color film substrate 100.
Optionally, the color film substrate 100 further includes a color blocking layer 140, where the color blocking layer 140 is disposed on the second side, and the color blocking layer 140 includes a plurality of color blocks, and the colors of the plurality of color blocks include one or more of red, green, blue and white, so as to filter the emergent light. Through the mutual cooperation of different color resistances, the display requirements of different display pictures can be met.
In some embodiments, the partial refraction layer 120 is located on the second side of the substrate 110, that is, the outgoing light is first refracted in the partial refraction layer 120 after being filtered by the color-resisting layer 140, and then passes through the substrate 110 to enter the partial refraction layer 120 located on the first side for refraction, so as to adjust the outgoing direction and angle of the outgoing light.
In other embodiments, the refraction layer 120 is disposed on the second side of the substrate 110, that is, the outgoing light is filtered by the color-blocking layer 140 and then directly enters the refraction layer 120 to adjust the outgoing angle and direction of the outgoing light, and then the outgoing color film substrate 100 is received by the human eye through the wire grid 130 on the first side of the substrate 110 for polarization detection.
The wire grid 130 may be disposed on the first side of the substrate 110 or on the second side of the substrate 110; meanwhile, the wire grid 130 may be directly disposed on the substrate 110, or may be disposed between two adjacent refraction layers 120, and its specific disposition may be adjusted according to design requirements, which is not limited herein.
In addition, the embodiment of the present application provides a display panel, which includes a color film substrate, and the specific structure of the color film substrate refers to the above embodiment.
Fig. 2 is a schematic structural diagram of a display panel 10 according to an embodiment of the application, and as shown in fig. 2, the display panel 10 includes a color film substrate 100, an array substrate 200 and a liquid crystal layer 300. The array substrate 200 is located on the second side of the substrate 110 in the color film substrate 100, i.e. the side of the color resist layer 140 in the color film substrate 100 where the array substrate 200 is located.
During assembly, the array substrate 200 and the color film substrate 100 are buckled to form a containing cavity, the liquid crystal layer 300 is filled in the containing cavity between the color film substrate 100 and the array substrate 200, and the liquid crystal molecules in the liquid crystal layer 300 are controlled to rotate by driving voltage regulation so as to form emergent rays with different emergent angles and directions.
Optionally, in order to ensure that the liquid crystal layer 300 has enough accommodating space and the color film substrate 100 and the array substrate 200 are relatively stable, to avoid uneven or different heights of the surface of the display panel 10, a spacer 400 needs to be disposed between the color film substrate 100 and the array substrate 200 to support the color film substrate 100 and the array substrate 200, so as to ensure the flatness of the surface of the display panel 10.
Finally, the embodiment of the application also provides a manufacturing method of the color film substrate 100, as shown in fig. 3, the manufacturing method of the color film substrate 100 mainly comprises the following steps:
s100, providing a substrate 110. The substrate 110 may be a glass substrate or other types of substrates, and is used for supporting each film structure of the color film substrate 100, and specific materials thereof may be adjusted according to actual design requirements, which is not limited herein.
It should be noted that, because the color film substrate 100 is entirely located at the light emitting side, in order to ensure the light emitting rate of the color film substrate 100, the substrate 110 needs to have good light transmittance, so that a great amount of loss is avoided when light passes through the substrate 110, and the light emitting rate effect of the color film substrate 100 is improved.
S200, a plurality of wire grids 130 are formed on the substrate 110, and the plurality of wire grids 130 are juxtaposed.
Specifically, as shown in fig. 4, a metal layer is deposited on the substrate 110, and then etched to form a plurality of wire grids 130 arranged in parallel. The second gaps 131 are arranged between two adjacent wire grids 130, and the positions and the sizes of the second gaps 131 can be correspondingly adjusted through the adjustment of the etching process so as to meet different light emitting requirements.
S300, sequentially forming multiple refractive layers 120 on the substrate 110, where the refractive indexes of two adjacent refractive layers 120 are different, and the refractive index of the refractive layer 120 close to the substrate 110 in the multiple refractive layers 120 is different from the refractive index of the substrate 110.
As shown in fig. 5, in the manufacturing process, multiple layers of refractive layers 120 are sequentially deposited on a substrate 110 by adopting a physical or chemical deposition manner, and refractive indexes of two adjacent layers of refractive layers 120 are different, and refractive indexes of refractive layers 120 close to the substrate 110 in the multiple layers of refractive layers 120 are different from those of the substrate 110, so that an emergent angle of an emergent ray changes when the emergent ray passes through each layer of refractive layers 120, and the emergent rays at different positions are converged to the same observation point through the matching design of the refractive indexes of the multiple layers of refractive layers 120, so that the color cast problem of different observation points is solved, and the display effect of the color film substrate 100 is improved.
Optionally, during the layer-by-layer formation of the refraction layers 120, the surface of at least one of the refraction layers 120 is etched to form a plurality of protrusions 121 on the surface of the refraction layer 120. Through the design of etching technology, can adjust the shape of protruding 121 for the outgoing angle of outgoing light is more various, thereby is favorable to the regulation to outgoing angle of outgoing light.
After forming the plurality of protrusions 121 on a surface of one layer, the next adjacent refraction layer 120 is filled in the first gaps 122 of the plurality of protrusions 121, that is, the side of the next adjacent refraction layer 120, which is close to the plurality of protrusions 121, forms the protrusion 121 complementary to the refraction layer 120, so that the adjustment of the emergent angle and the emergent direction of the emergent light is more various.
It should be noted that, the protrusion 121 may be formed on one side surface of any one or more of the refraction layers 120 or formed on both side surfaces of the refraction layers 120 at the same time, and the specific forming position thereof may be adjusted according to the actual application requirement, which is not particularly limited herein.
Optionally, in the process of manufacturing the color film substrate 100, after the wire grid 130 and the refraction layer 120 are manufactured, a color resist layer 140 is further formed on the substrate 110 to complete the manufacturing of the color film substrate 100. The color resist layer 140 includes a plurality of color resists, and the colors of the plurality of color resists include one or more of red, green, blue and white for filtering the outgoing light. Through the mutual cooperation of different color resistances, the display requirements of different display pictures can be met.
In some embodiments, the plurality of wire grids 130 and the multilayer refractive layer 120 are located on the same side of the substrate 110, and the plurality of wire grids 130 are located on one side of the multilayer refractive layer 120 near the substrate 110, and the color resist layer 140 is located on the other side of the substrate 110. That is, the step S200 is performed first to form the wire grid 130 on the substrate base 110, and then the step S300 is performed to sequentially form the multi-layered refraction layer 120 on the wire grid 130.
In other embodiments, where the multi-layer refraction layer 120 and the color resist layer 140 are located on the same side of the substrate 110 and the plurality of wire grids 130 are located on the other side of the substrate 110, the order of steps S200 and S300 can be adjusted according to the manufacturing process. Alternatively, the multi-layer refraction layer 120 is distributed on opposite sides of the substrate 110, and the manufacturing process of step S200 and then step S300 is performed to simplify the process flow.
It should be noted that, in the process of manufacturing the color film substrate 100, the sequence of steps S200 and S300 can be adjusted according to the arrangement positions of the wire grid 130 and the refractive layer 120, that is, steps S200 and S300 only represent the process of manufacturing the wire grid 130 and the refractive layer 120, and do not represent the manufacturing sequence thereof, and the manufacturing sequence thereof is correspondingly adjusted along with the structural change of the color film substrate 100.
The color film substrate, the display panel and the manufacturing method of the color film substrate provided by the embodiment of the application are described in detail, and specific examples are applied to illustrate the principle and the implementation of the application, and the description of the above embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (8)
1. The utility model provides a various membrane base plate which characterized in that includes:
a substrate base plate having a first side and a second side opposite to each other;
a plurality of wire grids are arranged on the first side face in parallel, and a second gap is reserved between two adjacent wire grids;
the multi-layer refraction layers are sequentially arranged on the wire grid, and the refractive indexes of two adjacent refraction layers are different; the refractive index of the refractive layers close to the substrate in the multiple layers is different from that of the substrate; a plurality of protrusions are arranged on the surface of at least one refraction layer in parallel, and a first gap is formed between every two adjacent protrusions;
the extending direction of the protrusions is the same as the extending direction of the wire grids, the distribution direction of the protrusions is the same as the distribution direction of the wire grids, and the first gaps and the second gaps are arranged in a staggered manner in the thickness direction of the substrate;
the refractive indexes of the plurality of refractive layers gradually increase along the direction away from the substrate base plate; or, the refractive indexes of the multiple layers of the refractive layers gradually decrease along the direction away from the substrate base plate;
the thickness of the plurality of refraction layers gradually increases along the direction away from the substrate base plate; or, the thickness of the multiple refraction layers gradually decreases along the direction away from the substrate base plate;
the adjacent refraction layers are filled with first gaps among the plurality of bulges, so that emergent light rays are emitted from the gaps to reach the bulge contact surfaces of the adjacent two refraction layers, and two-side refraction is realized.
2. The color filter substrate according to claim 1, wherein the refractive indices of the plurality of refractive layers are different.
3. The color film substrate according to claim 1, wherein the cross-sectional area of the protrusions gradually increases in a direction approaching the substrate; or alternatively, the first and second heat exchangers may be,
the cross-sectional area of the protrusion gradually decreases in a direction approaching the substrate base plate.
4. The color film substrate of any one of claims 1-3, wherein the sum of thicknesses of the multiple refractive layers is greater than or equal to 10 nanometers and less than or equal to 3000 nanometers.
5. A color film substrate according to any one of claims 1 to 3, wherein the refractive layer comprises one or more of silicon oxide, silicon nitride and silicon oxynitride.
6. The color film substrate of claim 1, further comprising a color resist layer disposed on the second side.
7. A display panel, the display panel comprising:
the color film substrate of any one of claims 1 to 6;
the array substrate is positioned on the second side surface of the substrate in the color film substrate; a kind of electronic device with high-pressure air-conditioning system
And the liquid crystal layer is filled between the color film substrate and the array substrate.
8. The manufacturing method of the color film substrate is characterized by comprising the following steps:
providing a substrate, wherein the substrate is provided with a first side surface and a second side surface which are opposite;
forming a plurality of wire grids on the substrate, wherein the wire grids are arranged on the first side face in parallel, and a second gap is reserved between two adjacent wire grids;
sequentially forming a plurality of refraction layers on the substrate, wherein the refraction indexes of two adjacent refraction layers are different, and the refraction index of the refraction layer close to the substrate in the plurality of refraction layers is different from the refraction index of the substrate; a plurality of protrusions are arranged on the surface of at least one refraction layer in parallel, and a first gap is formed between every two adjacent protrusions;
the extending direction of the protrusions is the same as the extending direction of the wire grids, the distribution direction of the protrusions is the same as the distribution direction of the wire grids, and the first gaps and the second gaps are arranged in a staggered manner in the thickness direction of the substrate;
the refractive indexes of the plurality of refractive layers gradually increase along the direction away from the substrate base plate; or, the refractive indexes of the multiple layers of the refractive layers gradually decrease along the direction away from the substrate base plate;
the thickness of the plurality of refraction layers gradually increases along the direction away from the substrate base plate; or, the thickness of the multiple refraction layers gradually decreases along the direction away from the substrate base plate;
the adjacent refraction layers are filled with first gaps among the plurality of bulges, so that emergent light rays are emitted from the gaps to reach the bulge contact surfaces of the adjacent two refraction layers, and two-side refraction is realized.
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