WO2019052043A1 - 显示面板及其制造方法 - Google Patents

显示面板及其制造方法 Download PDF

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Publication number
WO2019052043A1
WO2019052043A1 PCT/CN2017/115814 CN2017115814W WO2019052043A1 WO 2019052043 A1 WO2019052043 A1 WO 2019052043A1 CN 2017115814 W CN2017115814 W CN 2017115814W WO 2019052043 A1 WO2019052043 A1 WO 2019052043A1
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Prior art keywords
substrate
resist film
color resist
color
layer
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PCT/CN2017/115814
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English (en)
French (fr)
Inventor
曹军红
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Publication of WO2019052043A1 publication Critical patent/WO2019052043A1/zh

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body

Definitions

  • the present application relates to the field of display technologies, and in particular, to a display panel and a method of fabricating the same.
  • the existing displays are generally controlled based on the active switch, and have many advantages such as thin body, power saving, no radiation, etc., and have been widely used, mainly including liquid crystal display, OLED (Organic Light-Emitting Diode) display, QLED (Quantum) Dot Light Emitting Diodes), such as displays and plasma displays, have both a flat display and a curved display.
  • OLED Organic Light-Emitting Diode
  • QLED Quadantum Dot Light Emitting Diodes
  • displays and plasma displays have both a flat display and a curved display.
  • the liquid crystal display works by placing liquid crystal molecules in two parallel glass substrates and applying a driving voltage on the two glass substrates to control the liquid crystal. The direction of rotation of the molecules to refract the light from the backlight module to produce a picture.
  • organic light-emitting diodes are used for self-illumination for display, and have the advantages of self-luminous, wide viewing angle, almost infinite contrast, low power consumption, and extremely high reaction speed.
  • the QLED display structure is very similar to the OLED technology. The main difference is that the luminescent center of the QLED is composed of Quantum dots. Its structure is that two electrons (Electron) and holes (Hole) converge in the quantum dot layer to form photons (Exciton), and recombine by photons.
  • the liquid crystals are arranged in a very orderly manner and appear clear and transparent. Once the DC electric field is applied, the arrangement of molecules is disturbed, and some liquid crystals change the direction of light propagation.
  • the polarizers on the front and back of the LCD screen block specific directions. The light, which produces the difference in color depth, can display numbers and images.
  • the liquid crystal display has not been effective in solving the technical problem of large-view character bias.
  • An object of the present application is to provide a display panel that can effectively suppress white-scale whitening in a large viewing angle.
  • a display panel provided by the present application includes: a substrate including a first substrate and a second substrate, an active switch, a color filter layer, and a display control layer.
  • the active switch is disposed on the first substrate;
  • the color filter layer is disposed on the first substrate or the second substrate;
  • the display control layer is disposed on the first substrate and the first Between the two substrates; wherein the color filter layer comprises a plurality of color resists, the color resist comprises a first color resist film and a second color resist film, the first color resist film and the second color resist The film is disposed on the same color resist, and the thickness of the first color resist film is greater than the thickness of the second color resist film.
  • the difference between the first color resist film and the second color resist film is 0.3 to 0.5 ⁇ m. In this way, when the backlight passes through the first color resist film and the second color resist film, the dark transparent area of the pixel and the light transmissive bright area of the pixel are formed, so that the display panel achieves a low color shift effect, so that the display effect of the display panel is better.
  • the display quality of the display panel is improved; and the difference in thickness between the first color resist film and the second color resist film can be adjusted by using a multi-tone mask for adjusting the color filter layer by adjusting a conventional manufacturing process, thereby being convenient Forming a gap between the first color resist film and the second color resist film; compatible with the conventional process, only changing the development process of the color filter layer, the multi-tone mask can effectively control the first color resist film
  • the difference in thickness from the second color resist film is in the range of 0.3 to 0.5 ⁇ m.
  • the orthographic projection area of the first color resist film on the substrate is larger than the orthographic projection area of the second color resist film on the substrate.
  • the ratio of the orthographic projection area of the first color resist film on the substrate to the orthographic area of the second color resist film on the substrate is 1.5 to 2.3 times.
  • the multi-tone mask process is used at each pixel, and the ratio of the orthographic projection area of the first color resist film on the substrate to the orthographic area of the second color resist film on the substrate is controlled at 1.5 ⁇ .
  • 2.3 times when the backlight passes through the first color resist film and the second color resist film, a transparent dark area of the pixel and a light transparent area of the pixel are formed, thereby achieving a low color shift effect of the display panel, so that the display panel has better display effect.
  • the display quality of the display panel is further improved, and by appropriately adjusting the ratio of the area of the bright and dark areas, the problem of whitening of the gray scale can be effectively suppressed at a large viewing angle.
  • the first substrate and the second substrate are disposed in parallel, and the color filter layer is on the first substrate or the second substrate.
  • the display of different display panels can be effectively applied.
  • the problem of gray scale whitening in the effective suppression can be effectively realized, and the display quality of the display panel is further improved.
  • the color filter layer is provided with a flat layer for flattening the gap between the first color resist film and the second color resist film.
  • the setting of the flat layer can effectively flatten the gap between the first color resist film and the second color resist film, so that the surface of the entire array substrate is flat to facilitate the setting of the subsequent process, specifically, in order to avoid different thickness settings.
  • the color filter layer has an adverse effect on the subsequent substrate fabrication process; and the flat layer can effectively protect the color filter layer, which can effectively avoid the direct corrosion of the color filter layer by the cleaning agent in the subsequent process, and is effective
  • the cost of scrapping is reduced, and the color filter layer is effectively prevented from being damaged in subsequent processes, thereby ensuring a higher yield of the display panel, ensuring better display quality of the display panel, and further improving the market competitiveness of the display panel.
  • the first transparent electrode layer is disposed on the flat layer
  • the second transparent electrode layer is disposed on the second substrate
  • the display control layer is disposed on the first transparent electrode layer and the second transparent electrode Between the layers.
  • the first transparent electrode layer and the second transparent electrode layer can provide a required voltage to the display control layer, thereby ensuring a better display effect of the display panel;
  • the first transparent electrode layer and the second transparent electrode layer can be physically vapor deposited. Or some method of sputter deposition techniques is deposited onto the surface of the planar layer.
  • Another object of the present invention is to provide a method for manufacturing a display panel capable of effectively suppressing gray scale whitening at a large viewing angle, comprising: providing a substrate including a first substrate and a second substrate; and setting on the first substrate An active switch; a color filter material layer disposed on the first substrate or the second substrate; a color filter layer having different film thicknesses obtained by a multi-tone mask process; and the first substrate and the first A display control layer is disposed between the two substrates.
  • a color filter material layer is disposed on the substrate, and the color filter material layer is exposed and developed by using the multi-tone mask, thereby effectively obtaining color filter layers of different film thicknesses, and setting color filter layers with different film thicknesses.
  • the problem that the color shift occurs at a large viewing angle can be effectively solved, so that the display panel can effectively suppress the white-whitening problem in a large viewing angle, so that the display effect of the display panel is better, and the display quality of the display panel is further improved.
  • the method for obtaining a color filter layer having different film thicknesses by using a multi-tone mask process comprises: obtaining a pattern of a color filter layer on the color filter material layer by using a multi-tone mask process; and using a developer
  • the color filter material layer is treated to obtain color filter layers of different film thicknesses.
  • the color filter material layer is exposed and developed by the multi-tone mask to obtain the color filter material layer.
  • a color filter layer pattern is obtained, and then the color filter material layer is developed by using a developing solution to obtain color filter layers of different thicknesses.
  • the thickness of the first color resist film By designing the thickness of the first color resist film to be larger than the thickness of the second color resist film, Effectively solve the problem of color shift in large viewing angles, so that the display panel can effectively suppress the problem of grayscale whitening in a large viewing angle, so that the display effect of the display panel is better, and the display quality of the display panel is further improved.
  • the multi-tone mask comprises an exposure unit, and the exposure unit comprises a semi-transmissive portion and a full transmissive portion, and the semi-transmissive portion has a light transmittance of 90% to 95%.
  • each exposure unit corresponds to the color resistance of one pixel dot area
  • the area of the full transmissive portion of the exposure unit corresponds to the first color resist film
  • the area of the upper translucent portion of the exposure unit corresponds to the second color resist film, which passes through the exposure unit.
  • the setting can effectively control the thickness difference between the first color resist film and the second color resist film, so that the thickness difference between the two is controlled within a range of 0.3 to 0.5 ⁇ m, which is compatible with the conventional process flow and only changes
  • the development process of the color filter layer can effectively save the transformation cost.
  • Another object of the present application is to provide a display device capable of effectively suppressing gray scale whitening in a large viewing angle, including: a backlight module, and the display panel as described above.
  • the thickness of the first color resist film is designed to be larger than the thickness of the second color resist film, so that the problem of color shift at a large viewing angle can be effectively solved, so that the display panel can effectively suppress the white-scale whitening at a large viewing angle.
  • the problem is that the display panel has better display effect, further improves the display quality of the display panel; and the pixel discrimination effect caused by different color resist thicknesses in the display control layer can effectively achieve the effect of low color shift and ensure the display panel The color and brightness are more uniform, which effectively improves the display quality of the display panel.
  • the consumables for manufacturing the color filter layer can be effectively saved, further Reduce the production cost of the display panel, thereby better improving the market competitiveness of the display panel.
  • FIG. 1 is a cross-sectional view showing a partial structure of a display panel according to an embodiment of the present application
  • FIG. 2 is a cross-sectional view showing a partial structure of a display panel according to an embodiment of the present application
  • FIG. 3 is a cross-sectional view showing a partial structure of a display panel according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a pixel structure of an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a method for fabricating a display panel according to an embodiment of the present application.
  • FIG. 6 is a flowchart of a method for fabricating a display panel according to an embodiment of the present application.
  • FIG. 7 is a flow chart of a method for fabricating a display panel according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a display device according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a pixel structure of another embodiment of the present application.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • a plurality means two or more unless otherwise stated.
  • the term “comprises” and its variations are intended to cover a non-exclusive inclusion.
  • connection In the description of the present application, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.
  • the display panel of the present application a method of manufacturing the same, and a display device will be described in further detail below with reference to the embodiments of FIGS. 1 through 9.
  • a display panel includes:
  • a substrate comprising a first substrate and a second substrate
  • An active switch disposed on the first substrate
  • a color filter layer disposed on the first substrate or the second substrate
  • the color filter layer includes a plurality of color resists 31.
  • the color resists 31 include a first color resist film 32 and a second color resist film 33.
  • the first color resist film 32 and the second color resist film 33 are disposed on the same color resist 31.
  • the thickness of the first color resist film 32 is greater than the thickness of the second color resist film 33.
  • the thickness of the first color resist film 32 By designing the thickness of the first color resist film 32 to be larger than the thickness of the second color resist film 33, the problem of color shift at a large viewing angle can be effectively solved, so that the display panel can effectively suppress the whitening of the gray scale in a large viewing angle.
  • the display panel has better display effect, further improves the display quality of the display panel; and the pixel discrimination effect caused by the thickness of the different color resistance 31 in the display control layer 13 can effectively achieve the effect of low color shift and ensure display.
  • the color and brightness of the panel are more uniform, and the display quality of the display panel is effectively improved.
  • the color filter layer 30 can be effectively saved.
  • the display control layer 13 includes a liquid crystal layer.
  • the liquid crystal display works by placing liquid crystal molecules in two parallel glass substrates and applying driving voltage on the two glass substrates to control liquid crystal molecules. The direction of rotation to refract the light from the backlight module to produce a picture.
  • the difference in thickness between the first color resist film 32 and the second color resist film 33 is 0.3-0.5 ⁇ m, and the transmittance of the backlight through the first color resist film 32 having a thickness of d1 is small, forming a dark region of the pixel.
  • the transmittance of the second color resist film 33 is d2, and the light transmissive bright area of the pixel is formed, so that the display panel achieves a low color shift effect, so that the display effect of the display panel is better, and the display of the display panel is further improved.
  • the quality difference and the difference in thickness between the first color resist film 32 and the second color resist film 33 can be adjusted by a conventional manufacturing process, and the color filter layer 30 can be formed using the multi-tone mask 40, thereby facilitating the formation of the first
  • the difference in thickness between 32 and the second color resist film 33 is in the range of 0.3 to 0.5 ⁇ m.
  • the orthographic projection area of the first color resist film on the substrate 10 is larger than the orthographic projection area of the second color resist film on the substrate 10, and the first color resist film 32 and the second color resist are appropriately adjusted at one pixel point.
  • the area ratio of the film 33 when the backlight is irradiated to the color resist 31, makes the display color of the pixel point more uniform, and does not appear too bright or too dark, thereby effectively suppressing the problem of gray scale whitening in the backlight, and ensuring
  • the display panel has a better display effect; when applied on a Multi-domain Vertical Alignment (MVA) panel, the multi-domain vertical alignment panel is not a conventional upright type but a bias because the protrusion is used to make the liquid crystal stand still.
  • MVA Multi-domain Vertical Alignment
  • the multi-domain vertical alignment panel applies voltage to the liquid crystal. It is faster to change the molecules to the level so that the backlight can pass, which can greatly shorten the display time and make the display reaction time shorter.
  • the ratio of the orthographic projection area of the first color resist film on the substrate 10 to the orthographic projection area of the second color resist film on the substrate 10 is 1.5 to 2.3 times, and multi-tone is used at each pixel point by adjusting a conventional process.
  • the mask 40 process controls the ratio of the orthographic projection area of the first color resist film 32 on the substrate 10 to the orthographic area of the second color resist film 33 on the substrate 10 to be 1.5 to 2.3 times, so that the backlight passes through the thickness d1.
  • the transmittance of the first color resist film 32 is small, and the dark region of the pixel is formed, and the transmittance of the second color resist film 33 is d2, and the transmittance of the second color resist film 33 is large, thereby forming a transparent light-emitting area of the pixel, thereby causing the display panel to reach
  • the effect of low color shift makes the display effect of the display panel better, and further improves the display quality of the display panel.
  • the problem of gray scale in the middle gray scale can be effectively suppressed at a large viewing angle; Moreover, the light transmittance of the color resist layers of different thicknesses is different, and the light transmittance of the pixels can be divided into a bright area and a dark area, thereby achieving a low color shift effect.
  • the substrate 10 includes a first substrate 11 and a second substrate 12.
  • the first substrate 11 and the second substrate 12 are disposed in parallel, and the color filter layer 30 may be disposed on the first substrate 11 or the second substrate 12.
  • an active switch 20 is disposed on the first substrate 11 , and the active switch 20 includes a gate 21 disposed on the first substrate 11 , a passivation layer 22 on the gate 21 , and a passivation layer 22 .
  • the semiconductor layer 23 is provided with a metal layer 24, the metal layer 24 includes a source 25 and a drain 26.
  • the metal layer 24 is provided with an insulating layer 27, and the insulating layer 27 can effectively protect the active switch 20.
  • the direct corrosion of the source 25 and the drain 26 of the active switch 20 by the cleaning agent in the subsequent process can be effectively avoided, so that the source 25 and the drain 26 can be kept intact, thereby reducing the problem of disconnection and effectively reducing the scrapping cost.
  • the quality of the display panel is improved; and the source 25 and the drain 26 of the active switch 20 are made of a metal material, and the sides of the source 25 and the drain 26 have metal burrs from the microstructure, and the insulating layer 27
  • the source 25 and the drain 26 can be further protected, effectively avoiding the influence of the subsequent process on the source 25 and the drain 26, thereby effectively improving the yield of the display panel; and setting the color filter on the insulating layer 27.
  • the light layer 30 is flat on the color filter layer 30
  • the first layer 11 and the second substrate 12 are arranged in parallel, the second substrate 12 is provided with a second transparent electrode layer 15, and the display control layer 13 is disposed on the first transparent electrode layer 14 and Between the two transparent electrode layers 15.
  • an active switch 20 is disposed on the first substrate 11.
  • the active switch 20 includes a gate 21 disposed on the first substrate 11, a passivation layer 22 on the gate 21, and a passivation layer 22.
  • the semiconductor layer 23 is provided with a metal layer 24, the metal layer 24 includes a source 25 and a drain 26.
  • the metal layer 24 is provided with an insulating layer 27, and the insulating layer 27 can effectively protect the active switch 20.
  • the direct corrosion of the source 25 and the drain 26 of the active switch 20 by the cleaning agent in the subsequent process can be effectively avoided, so that the source 25 and the drain 26 can be kept intact, thereby reducing the problem of disconnection and effectively reducing the scrapping cost.
  • the quality of the display panel is improved; the first substrate 11 and the second substrate 12 are disposed in parallel, the color filter layer 30 is disposed on the second substrate 12, and the flat layer 16 and the second transparent electrode layer 15 are disposed on the color filter layer 30.
  • a first transparent electrode layer 14 is disposed on the insulating layer 27, and the display control layer 13 is disposed between the first transparent electrode layer 14 and the second transparent electrode layer 15.
  • the color filter layer 30 is provided with a flat layer 16 for flattening the difference between the first color resist film 32 and the second color resist film 33.
  • the flat layer 16 can effectively set the first color.
  • the gap between the resist film 32 and the second color resist film 33 is flattened so that the surface of the entire array substrate is flat and convenient.
  • the process of the continuous process specifically, in order to avoid the color filter layer 30 of different thicknesses, has an adverse effect on the subsequent substrate fabrication process; and the flat layer 16 can effectively protect the color filter layer 30, which can effectively avoid
  • the direct corrosion of the color filter layer 30 by the cleaning agent in the subsequent process effectively reduces the scrapping cost, and effectively prevents the color filter layer 30 from being damaged in the subsequent process, thereby ensuring a higher yield of the display panel and ensuring the display panel.
  • Good display quality further enhances the market competitiveness of display panels.
  • the first transparent electrode layer 14 is disposed on the flat layer 16, and the second transparent electrode layer 15 is disposed on the second substrate 12.
  • the display control layer 13 is disposed on the first transparent electrode layer 14 and Between the second transparent electrode layers 15, for the liquid crystal display panel, the display control layer 13 is a liquid crystal layer; for the OLED display panel, the display control layer 13 is an organic light emitting diode, the first transparent electrode layer 14 and the second transparent electrode layer 15 can provide the display control layer 13 with the required voltage to ensure a better display effect of the display panel; the first transparent electrode layer 14 and the second transparent electrode layer 15 can adopt physical vapor deposition, or some methods of sputtering deposition technology. Deposited onto the surface of the planar layer 16.
  • the color resist 31 is disposed corresponding to the color resistive region 50 on the pixel electrode
  • the first color resist film 32 is disposed corresponding to the first color resisting region 51 on the pixel electrode
  • the second The color resist film 33 is disposed corresponding to the second color resistive region 52 on the pixel electrode, wherein the optional color resist 31 and the pixel electrode are disposed on the first substrate 11, or the color resist 31 is disposed on the substrate opposite to the pixel electrode Parallel on the second substrate 12.
  • the color resistance is disposed on the pixel structure of the array substrate
  • the color resist 31 is disposed on the pixel electrode
  • the orthographic projection area of the first color resist film 32 on the array substrate and the second color resist film 33 are The ratio of the orthographic projection area on the array substrate is 1.5 to 2.3 times.
  • another object of the present application is to provide a method for manufacturing a display panel capable of effectively suppressing gray scale whitening at a large viewing angle, including:
  • Step S61 providing a substrate, the substrate comprising a first substrate and a second substrate;
  • Step S62 providing an active switch on the first substrate
  • Step S63 providing a color filter material layer on the first substrate or the second substrate;
  • Step S64 obtaining a color filter layer with different film thicknesses by using a multi-tone mask process
  • Step S65 providing a display control layer between the first substrate and the second substrate.
  • the color filter layer 44 is disposed on the substrate, and the color filter layer 44 is exposed and developed by the multi-tone mask 40, so that the color filter layers 30 having different film thicknesses can be effectively obtained.
  • the color filter layer 30 of the film thickness can effectively solve the problem of color shift at a large viewing angle, so that the display panel can effectively suppress the problem of gray scale in the middle of the large viewing angle, so that the display effect of the display panel is better, further
  • the display quality of the display panel is improved; and the pixel discrimination effect caused by the thickness of the different color resistance 31 in the display control layer 13 can effectively achieve the effect of low color shift, ensuring uniformity of color and brightness of the display panel, and effectively improving The display quality of the display panel.
  • the multi-tone mask 40 can be divided into a half-tone mask and a gray-tone mask.
  • the gray dimmer is to make a micro slit below the resolution of the exposure machine, and then to cover a part of the light source by the micro slit portion to achieve the effect of half exposure.
  • a halftone mask is semi-exposure using a semi-transmissive film. Since the above two methods are three exposure layers of the exposed portion, the half exposed portion and the unexposed portion after one exposure process, two layers of the photosensitive material layer can be formed after development.
  • the pattern can be transferred to the panel substrate in a relatively small number of sheets, and the panel production efficiency is improved; the number of the multi-tone mask 40 is relatively small due to the use.
  • the reticle can transfer the pattern onto the photosensitive material layer, and the multi-tone reticle 40 which can shorten the panel process can improve the production efficiency of the panel. Further, since the halftone can be expressed, the display quality of the display panel can be improved.
  • the method for obtaining a color filter layer having different film thicknesses by using a multi-tone mask process includes:
  • Step S71 obtaining a pattern of the color filter layer on the color filter material layer by using a multi-tone mask process
  • Step S72 treating the color filter material layer with a developer to obtain color filter layers having different film thicknesses.
  • the color filter layer 44 is exposed and developed by the multi-tone mask 40 to obtain a pattern of the color filter layer on the color filter layer 44, and then the color filter layer 44 is developed with a developer to obtain a difference.
  • the color filter layer 30 of the thickness can effectively solve the problem of color shift at a large viewing angle by designing the thickness of the first color resist film 32 to be larger than the thickness of the second color resist film 33, so that the display panel can be effective at a large viewing angle.
  • the problem of whitening gray scale in the pressing makes the display effect of the display panel better, further improves the display quality of the display panel; and the pixel distinguishing effect caused by the thickness of the different color resists 31 in the display control layer 13 can effectively reach
  • the effect of low color shift ensures that the color and brightness of the display panel are more uniform, effectively improving the display quality of the display panel.
  • the multi-tone mask 40 includes an exposure unit 41, and the exposure unit 41 includes a semi-transparent
  • the portion 42 and the full transmissive portion 43 have a light transmittance of 90% to 95%
  • each exposure unit 41 corresponds to the color resistance 31 of one pixel dot region
  • the region of the full transmissive portion 43 of the exposure unit 41 Corresponding to the first color resist film 32, the area of the upper semi-transmissive portion 42 of the exposing unit 41 corresponds to the second color resist film 33, and the first color resist film 32 and the second color resist film 33 can be effectively controlled by the arrangement of the exposing unit 41.
  • the difference in thickness between the two is such that the thickness difference between the two is controlled within the range of 0.3 to 0.5 ⁇ m, which is compatible with the conventional process, and only changes the development process of the color filter layer 30, and the backlight passes through the thickness d1.
  • the transmittance of the first color resist film 32 is small, forming a dark region of the transparent light of the pixel, and the transmittance of the second color resist film 33 having a thickness of d2 is large, thereby forming a light-transmissive bright region of the pixel, thereby causing the display panel
  • the effect of low color shift is achieved, so that the display effect of the display panel is better, and the display quality of the display panel is further improved.
  • the display panel includes a liquid crystal panel, an OLED (Organic Light-Emitting Diode) panel, a QLED (Quantum Dot Light Emitting Diodes) panel, a plasma panel, a flat panel, a curved panel, and the like.
  • OLED Organic Light-Emitting Diode
  • QLED Quadantum Dot Light Emitting Diodes
  • the present embodiment discloses a display device 100.
  • the display device 100 includes the control unit 200 and the display panel 300 of the present application.
  • the above description is made by taking the display panel as an example. It should be noted that the above description of the structure of the display panel is also applicable to the display of the embodiment of the present application.
  • the display device of the embodiment of the present application is a liquid crystal display
  • the liquid crystal display includes a backlight module, and the backlight module can be used as a light source for supplying sufficient light source with uniform brightness and distribution.
  • the backlight module of the embodiment can be For the front light type, it may also be a backlight type. It should be noted that the backlight module of the embodiment is not limited thereto.

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Abstract

一种显示面板及其制造方法，显示面板包括：基板（10），包括第一基板（11）和第二基板（12）；主动开关（20），设置在第一基板（11）上；彩色滤光层（30），设置在第一基板（11）或第二基板（12）上；显示控制层（13），设在第一基板（11）和第二基板（12）之间；彩色滤光层（30）包括多个色阻（31），色阻（31）包括第一色阻膜（32）和第二色阻膜（33），第一色阻膜（32）与第二色阻膜（33）设在同一个色阻（31）上，第一色阻膜（32）的厚度大于第二色阻膜（33）的厚度。

Description

显示面板及其制造方法 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板及其制造方法。
背景技术
现有的显示器一般都基于主动开关进行控制，具有机身薄、省电、无辐射等众多优点，得到了广泛的应用，主要包括液晶显示器、OLED(Organic Light-Emitting Diode)显示器、QLED(Quantum Dot Light Emitting Diodes)显示器、等离子显示器等、从外观结构来看，既有平面型显示器、也有曲面型显示器。
对于液晶显示器，包括液晶面板及背光模组(Backlight Module)两大部分，液晶显示器的工作原理是在两片平行的玻璃基板当中放置液晶分子，并在两片玻璃基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
对于OLED显示器，采用有机发光二极管自发光来进行显示，具有自发光、广视角、几乎无穷高的对比度、较低耗电、极高反应速度等优点。
QLED显示器结构与OLED技术非常相似，主要区别在于QLED的发光中心由量子点(Quantum dots)物质构成。其结构是两侧电子(Electron)和空穴(Hole)在量子点层中汇聚后形成光子(Exciton)，并且通过光子的重组发光。
液晶在正常情况下，其分子排列很有秩序，显得清澈透明，一旦加上直流电场后，分子的排列被打乱，一部分液晶会改变光的传播方向，液晶屏前后的偏光片会阻挡特定方向的光线，从而产生颜色深浅的差异，因而能显示数字和图像，然而液晶显示屏由于其液晶分子的轴向透光特性，在解决大视角色偏的技术课题上一直没有比较有效的解决办法。
发明内容
本申请的一个目的在于提供一种大视角时可有效压制中灰阶泛白的显示面板。
为解决上述的问题，本申请提供的一种显示面板包括：基板，包括第一基板和第二基板、主动开关、彩色滤光层以及显示控制层。所述主动开关设置在所述第一基板上；所述彩色滤光层设置在所述第一基板或所述第二基板上；所述显示控制层设置在所述第一基板和所述第二基板之间；其中，所述彩色滤光层包括多个色阻，所述色阻包括第一色阻膜和第二色阻膜，所述第一色阻膜与所述第二色阻膜设在同一个所述色阻上，所述第一色阻膜的厚度大于所述第二色阻膜的厚度。
其中，所述第一色阻膜与所述第二色阻膜的厚度差为0.3～0.5μm。这样，背光源通过第一色阻膜和第二色阻膜时，形成像素透光暗区和像素透光亮区，从而使得显示面板达到低色偏的效果，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质；而且第一色阻膜与第二色阻膜的厚度差可通过调整传统的制作工艺，针对彩色滤光层的制作使用多色调光罩进行，从而能够方便的形成第一色阻膜与第二色阻膜之间的断差；与传统的工艺流程相容，仅改变彩色滤光层的显影工艺，多色调光罩能够有效的控制第一色阻膜与第二色阻膜的厚度差在0.3～0.5μm的范围内。
其中，所述第一色阻膜在所述基板上的正投影面积大于所述第二色阻膜在所述基板上的正投影面积。这样，在一个像素点上通过适当的调整第一色阻膜和第二色阻膜的面积比例，在背光源照射到色阻时，使得像素点的显示色彩更加的均匀，不会出现过亮或过暗的情况，从而有效的压制中灰阶泛白的问题，保证显示面板更好的显示效果。
其中，所述第一色阻膜在所述基板上的正投影面积与所述第二色阻膜在所述基板上的正投影面积之比为1.5～2.3倍。这样，通过调整传统工艺，在每一个像素点使用多色调光罩工艺，将第一色阻膜在基板上的正投影面积与第二色阻膜在基板上的正投影面积比例控制在1.5～2.3倍，背光源通过第一色阻膜和第二色阻膜时，形成像素透光暗区和像素透光亮区，从而使得显示面板达到低色偏的效果，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质，通过适当的调整亮暗区面积比例，在大视角时可有效压制中灰阶泛白的问题。
其中，所述第一基板和所述第二基板平行设置，所述彩色滤光层在所述第一基板或所述第二基板上。这样，能够有效的适用不同的显示面板的显示 方式，通过对不同显示方式的显示面板进行工艺上的改进，就能够有效的实现有效压制中灰阶泛白的问题，进一步的提高显示面板的显示品质。
其中，所述彩色滤光层上设有平坦层，所述平坦层用于平坦化所述第一色阻膜和所述第二色阻膜的断差。这样，平坦层的设置能够有效的将第一色阻膜和第二色阻膜的断差进行平坦化，以使得整个阵列基板的表面平坦方便后续制程的设置，具体的，为了避免不同厚度设置的彩色滤光层对后续的基板制作工艺产生不良影响；而且平坦层还能对彩色滤光层进行有效的保护，能够有效的避免后续制程中清洗剂对彩色滤光层的直接腐蚀，有效的降低报废成本，有效的避免彩色滤光层在后续制程中受到损坏，从而保证显示面板更高的良品率，保证显示面板更好的显示品质，进一步的提高显示面板的市场竞争力。
其中，所述平坦层上设有第一透明电极层，所述第二基板上设有第二透明电极层，所述显示控制层设置在所述第一透明电极层和所述第二透明电极层之间。这样，第一透明电极层和第二透明电极层能够给显示控制层提供所需的电压，从而保证显示面板更好的显示效果；第一透明电极层和第二透明电极层可采用物理气相沉积、或者一些溅镀沉积技术的方法沉积到平坦层的表面上。
本申请的另一个目的在于提供一种大视角时可有效压制中灰阶泛白的显示面板的制造方法，包括：提供基板，包括第一基板和第二基板；在所述第一基板上设置主动开关；在所述第一基板或所述第二基板上设置彩色滤光材料层；采用多色调光罩制程获得不同膜厚的彩色滤光层；以及在所述第一基板和所述第二基板之间设置显示控制层。这样，在基板上设置彩色滤光材料层，采用多色调光罩对彩色滤光材料层进行曝光显影，能够有效的获得不同膜厚的彩色滤光层，通过设置不同膜厚的彩色滤光层，能够有效的解决大视角出现色偏的问题，使得显示面板在大视角时可有效压制中灰阶泛白的问题，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质。
其中，所述采用多色调光罩制程获得不同膜厚的彩色滤光层的方法包括：采用多色调光罩制程在所述彩色滤光材料层上获得彩色滤光层的图案；以及采用显影液处理所述彩色滤光材料层获得不同膜厚的彩色滤光层。这样，通过多色调光罩对彩色滤光材料层进行曝光显影，从而在彩色滤光材料层上获 得彩色滤光层的图案，然后采用显影液对彩色滤光材料层进行显影，获得不同厚度的彩色滤光层，通过将第一色阻膜的厚度设计大于第二色阻膜的厚度，能够有效的解决大视角出现色偏的问题，使得显示面板在大视角时可有效压制中灰阶泛白的问题，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质。
其中，所述多色调光罩包括曝光单元，所述曝光单元包括半透部和全透部，所述半透部的透光率为90％～95％。这样，每个曝光单元对应一个像素点区域的色阻，曝光单元上全透部的区域对应第一色阻膜，曝光单元上半透部的区域对应为第二色阻膜，通过曝光单元的设置能够有效的控制第一色阻膜与第二色阻膜之间的厚度差，使得两者之间的厚度差控制在0.3～0.5μm的范围内，与传统的工艺流程相容，仅改变彩色滤光层的显影工艺，能够有效的节约改造成本。
本申请的另一个目的在于提供一种大视角时可有效压制中灰阶泛白的显示装置，包括：背光模组，以及如上任一所述的显示面板。
本申请由于通过将第一色阻膜的厚度设计大于第二色阻膜的厚度，能够有效的解决大视角出现色偏的问题，使得显示面板在大视角时可有效压制中灰阶泛白的问题，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质；而且利用显示控制层内不同色阻厚度所造成的像素区分效果，能够有效达到低色偏的效果，保证显示面板的颜色和亮度更加的均匀，有效的提升显示面板的显示品质；同时通过将第一色阻膜的厚度大于第二色阻膜的厚度，能够有效的节省制作彩色滤光层的耗材，进一步的降低显示面板的生产成本，从而更好的提高显示面板的市场竞争力。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请一个实施例的显示面板的部分结构剖面示意图；
图2是本申请一个实施例的显示面板的部分结构剖面示意图；
图3是本申请一个实施例的显示面板的部分结构剖面示意图；
图4是本申请一个实施例的一个像素结构示意图；
图5是本申请一个实施例的显示面板制作方法的示意图；
图6是本申请一个实施例的显示面板制作方法的流程图；
图7是本申请一个实施例的显示面板制作方法的流程图；
图8是本申请实施例显示装置的示意图；以及
图9是本申请另一个实施例的一个像素结构示意图。
具体实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项” 还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
在图中，结构相似的单元是以相同标号表示。
下面参考附图1至图9实施例进一步详细描述本申请的显示面板、及其制造方法和显示装置。
如图1至图4所示，一种显示面板，所述显示面板包括：
基板，包括第一基板和第二基板；
主动开关，设置在所述第一基板上；
彩色滤光层，设置在所述第一基板或所述第二基板上；以及
显示控制层，设置在所述第一基板和所述第二基板之间；
彩色滤光层包括多个色阻31，色阻31包括第一色阻膜32和第二色阻膜33，第一色阻膜32与第二色阻膜33设在同一个色阻31上，第一色阻膜32的厚度大于第二色阻膜33的厚度。
通过将第一色阻膜32的厚度设计大于第二色阻膜33的厚度，能够有效的解决大视角出现色偏的问题，使得显示面板在大视角时可有效压制中灰阶泛白的问题，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质；而且利用显示控制层13内不同色阻31厚度所造成的像素区分效果，能够有效达到低色偏的效果，保证显示面板的颜色和亮度更加的均匀，有效的提升显示面板的显示品质；同时通过将第一色阻膜32的厚度大于第二色阻膜33的厚度，能够有效的节省制作彩色滤光层30的耗材，进一步的降低显示面板的生产成本，从而更好的提高显示面板的市场竞争力；将第一色阻膜32与第二色阻膜33设在同一个色阻31上，使得第一色阻膜32和第二色阻膜33可以同时制作，采用同样的材料和制程进行设置，能够有效的节约显示面板的生产成本，只需要按照需求采用多色调光罩进行同时制作；显示控制层13包括液晶层，液晶显示器的工作原理是在两片平行的玻璃基板当中放置液晶分子，并在两片玻璃基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
其中，第一色阻膜32与第二色阻膜33的厚度差为0.3～0.5μm，背光源通过厚度为d1第一色阻膜32时的穿透率较小，形成像素透光暗区，通过厚度 为d2第二色阻膜33时的穿透率较大，形成像素透光亮区，从而使得显示面板达到低色偏的效果，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质；而且第一色阻膜32与第二色阻膜33的厚度差可通过调整传统的制作工艺，针对彩色滤光层30的制作使用多色调光罩40进行，从而能够方便的形成第一色阻膜32与第二色阻膜33之间的断差；与传统的工艺流程相容，仅改变彩色滤光层30的显影工艺，多色调光罩40能够有效的控制第一色阻膜32与第二色阻膜33的厚度差在0.3～0.5μm的范围内。
其中，第一色阻膜在基板10上的正投影面积大于第二色阻膜在基板10上的正投影面积，在一个像素点上通过适当的调整第一色阻膜32和第二色阻膜33的面积比例，在背光源照射到色阻31时，使得像素点的显示色彩更加的均匀，不会出现过亮或过暗的情况，从而有效的压制中灰阶泛白的问题，保证显示面板更好的显示效果；在多畴垂直配向(Multi-domain Vertical Alignment，MVA)面板上应用时，由于多畴垂直配向面板是利用突出物使液晶静止时并非传统的直立式，而是偏向某一个角度静止，让视野角度更为宽广，视角的增加上可达160度以上，能够有效的解决大视角显示时的中灰阶泛白的问题；同时多畴垂直配向面板在施加电压让液晶分子改变成水平以让背光通过则更为快速，这样便可以大幅度缩短显示时间，使得显示反应时间更短。
其中，第一色阻膜在基板10上的正投影面积与第二色阻膜在基板10上的正投影面积之比为1.5～2.3倍，通过调整传统工艺，在每一个像素点使用多色调光罩40工艺，将第一色阻膜32在基板10上的正投影面积与第二色阻膜33在基板10上的正投影面积比例控制在1.5～2.3倍，使得背光源通过厚度为d1第一色阻膜32时的穿透率较小，形成像素透光暗区，通过厚度为d2第二色阻膜33时的穿透率较大，形成像素透光亮区，从而使得显示面板达到低色偏的效果，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质，通过适当的调整亮暗区面积比例，在大视角时可有效压制中灰阶泛白的问题；而且不同厚度彩色色阻层的光穿透率不同，可将像素透光区分为亮区和暗区，从而达成低色偏的效果。
其中，基板10包括第一基板11和第二基板12，第一基板11和第二基板12平行设置，彩色滤光层30可以设置在第一基板11或第二基板12上，能够 有效的适用不同的显示面板的显示方式，通过对不同显示方式的显示面板进行工艺上的改进，就能够有效的实现有效压制中灰阶泛白的问题，进一步的提高显示面板的显示品质。
如图1所示，第一基板11上设置主动开关20，主动开关20包括设置在第一基板11上的栅极21，所述栅极21上的钝化层22，钝化层22上设有半导体层23，半导体层23上设有金属层24，金属层24包括源极25和漏极26，金属层24上设有绝缘层27，绝缘层27能够有效的对主动开关20进行保护，能够有效的避免后续制程中清洗剂对主动开关20的源极25和漏极26的直接腐蚀，使得源极25和漏极26能够保持完好，从而减少产生断线问题，有效的降低报废成本，进而提升显示面板的品质；而且主动开关20的源极25和漏极26为金属材料制成，源极25和漏极26的侧边从微结构来看都有金属毛刺的现象，绝缘层27能够更进一步的对源极25和漏极26进行保护，有效的避免后续的制程对源极25和漏极26的影响，从而有效的提高显示面板的良品率；在绝缘层27上设置彩色滤光层30，在彩色滤光层30上设置平坦层16和第一透明电极层14，第一基板11和第二基板12平行设置，第二基板12上设置第二透明电极层15，显示控制层13设置在第一透明电极层14和第二透明电极层15之间。
如图3所示，第一基板11上设置主动开关20，主动开关20包括设置在第一基板11上的栅极21，所述栅极21上的钝化层22，钝化层22上设有半导体层23，半导体层23上设有金属层24，金属层24包括源极25和漏极26，金属层24上设有绝缘层27，绝缘层27能够有效的对主动开关20进行保护，能够有效的避免后续制程中清洗剂对主动开关20的源极25和漏极26的直接腐蚀，使得源极25和漏极26能够保持完好，从而减少产生断线问题，有效的降低报废成本，进而提升显示面板的品质；第一基板11和第二基板12平行设置，在第二基板12上设置彩色滤光层30，在彩色滤光层30上设置平坦层16和第二透明电极层15，在绝缘层27上设置第一透明电极层14，显示控制层13设置在第一透明电极层14和第二透明电极层15之间。
其中，彩色滤光层30上设有平坦层16，平坦层16用于平坦化第一色阻膜32和第二色阻膜33的断差，平坦层16的设置能够有效的将第一色阻膜32和第二色阻膜33的断差进行平坦化，以使得整个阵列基板的表面平坦方便后 续制程的设置，具体的，为了避免不同厚度设置的彩色滤光层30对后续的基板制作工艺产生不良影响；而且平坦层16还能对彩色滤光层30进行有效的保护，能够有效的避免后续制程中清洗剂对彩色滤光层30的直接腐蚀，有效的降低报废成本，有效的避免彩色滤光层30在后续制程中受到损坏，从而保证显示面板更高的良品率，保证显示面板更好的显示品质，进一步的提高显示面板的市场竞争力。
其中，所述平坦层16上设有第一透明电极层14，所述第二基板12上设有第二透明电极层15，所述显示控制层13设置在所述第一透明电极层14和所述第二透明电极层15之间，对于液晶显示面板，显示控制层13为液晶层；对于OLED显示面板，显示控制层13为有机发光二极管，第一透明电极层14和第二透明电极层15能够给显示控制层13提供所需的电压，从而保证显示面板更好的显示效果；第一透明电极层14和第二透明电极层15可采用物理气相沉积、或者一些溅镀沉积技术的方法沉积到平坦层16的表面上。
如图4所示为像素电极的结构示意图，色阻31与像素电极上的色阻区50对应设置，第一色阻膜32与像素电极上的第一色阻区51相对应设置，第二色阻膜33与像素电极上的第二色阻区52相对应设置，其中可选的色阻31与像素电极设在第一基板11上，或者色阻31设在与像素电极所在的基板相对平行的第二基板12上。
如图9所示为色阻设置在阵列基板的像素结构的实施方式，色阻31设在像素电极上，第一色阻膜32在阵列基板上的正投影面积与第二色阻膜33在阵列基板上的正投影面积之比为1.5～2.3倍。
如图5和图6所示，本申请的另一个目的在于提供一种大视角时可有效压制中灰阶泛白的显示面板的制作方法，包括：
步骤S61：提供基板，所述基板包括第一基板和第二基板；
步骤S62：在所述第一基板上设置主动开关；
步骤S63：在所述第一基板或第二基板上设置彩色滤光材料层；
步骤S64：采用多色调光罩制程获得不同膜厚的彩色滤光层；
步骤S65：在所述第一基板和所述第二基板之间设置显示控制层。
在基板上设置彩色滤光材料层44，采用多色调光罩40对彩色滤光材料层44进行曝光显影，能够有效的获得不同膜厚的彩色滤光层30，通过设置不同 膜厚的彩色滤光层30，能够有效的解决大视角出现色偏的问题，使得显示面板在大视角时可有效压制中灰阶泛白的问题，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质；而且利用显示控制层13内不同色阻31厚度所造成的像素区分效果，能够有效达到低色偏的效果，保证显示面板的颜色和亮度更加的均匀，有效的提升显示面板的显示品质。
其中，多色调光罩40可分为半色调光罩(Half-tone mask)和灰色调光罩(Gray-tone mask)两种。灰色调光罩是制作出曝光机分辨率以下的微缝，再藉由此微缝部位遮住一部份的光源，以达成半曝光的效果。另一方面，半色调光罩是利用半透过的膜来进行半曝光。因为以上两种方式皆是在一次的曝光过程后即可呈现出曝光部分、半曝光部分及未曝光部分这三种的曝光层次，故在显影后能够形成两种厚度的感光材料层。藉由利用这样的色阻厚度差异，便可以较一般少的片数下将图案转写至面板基板上，并达成面板生产効率的提升；多色调光罩40由于使用较一般还少的片数之光罩，便能够将图案转印于感光材料层上，可缩短面板制程的多色调光罩40将可实现面板生产效率之提升。此外，因为能够表现出半色调，故可以提高显示器面板之显示品质。
如图5和图7所示，所述采用多色调光罩制程获得不同膜厚的彩色滤光层的方法包括：
步骤S71：采用多色调光罩制程在所述彩色滤光材料层上获得彩色滤光层的图案；
步骤S72：采用显影液处理所述彩色滤光材料层获得不同膜厚的彩色滤光层。
通过多色调光罩40对彩色滤光材料层44进行曝光显影，从而在彩色滤光材料层44上获得彩色滤光层的图案，然后采用显影液对彩色滤光材料层44进行显影，获得不同厚度的彩色滤光层30，通过将第一色阻膜32的厚度设计大于第二色阻膜33的厚度，能够有效的解决大视角出现色偏的问题，使得显示面板在大视角时可有效压制中灰阶泛白的问题，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质；而且利用显示控制层13内不同色阻31厚度所造成的像素区分效果，能够有效达到低色偏的效果，保证显示面板的颜色和亮度更加的均匀，有效的提升显示面板的显示品质。
其中，所述多色调光罩40包括曝光单元41，所述曝光单元41包括半透 部42和全透部43，所述半透部42的透光率为90％～95％，每个曝光单元41对应一个像素点区域的色阻31，曝光单元41上全透部43的区域对应第一色阻膜32，曝光单元41上半透部42的区域对应为第二色阻膜33，通过曝光单元41的设置能够有效的控制第一色阻膜32与第二色阻膜33之间的厚度差，使得两者之间的厚度差控制在0.3～0.5μm的范围内，与传统的工艺流程相容，仅改变彩色滤光层30的显影工艺，背光源通过厚度为d1的第一色阻膜32时的穿透率较小，形成像素透光暗区，通过厚度为d2的第二色阻膜33时的穿透率较大，形成像素透光亮区，从而使得显示面板达到低色偏的效果，使得显示面板的显示效果更好，进一步的提高了显示面板的显示品质。
在上述实施例中，显示面板包括液晶面板、OLED(Organic Light-Emitting Diode)面板、QLED(Quantum Dot Light Emitting Diodes)面板、等离子面板、平面型面板、曲面型面板等。
参考图8，本实施方式公开一种显示装置100。该显示装置100包括控制部件200、以及本申请所述的显示面板300，以上以显示面板为例进行详细说明，需要说明的是，以上对显示面板结构的描述同样适用于本申请实施例的显示装置中。其中，当本申请实施例的显示装置为液晶显示器时，液晶显示器包括有背光模组，背光模组可作为光源，用于供应充足的亮度与分布均匀的光源，本实施例的背光模组可以为前光式，也可以为背光式，需要说明的是，本实施例的背光模组并不限于此。
以上内容是结合具体的实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (20)

  1. 一种显示面板，包括：
    基板，包括第一基板和第二基板；
    主动开关，设置在所述第一基板上；
    彩色滤光层，设置在所述第一基板或所述第二基板上；以及
    显示控制层，设置在所述第一基板和所述第二基板之间；
    其中，所述彩色滤光层包括多个色阻，所述色阻包括第一色阻膜和第二色阻膜，所述第一色阻膜与所述第二色阻膜设在同一个所述色阻上，所述第一色阻膜的厚度大于所述第二色阻膜的厚度。
  2. 如权利要求1所述的显示面板，其中，所述第一色阻膜与所述第二色阻膜的厚度差为0.3～0.5μm。
  3. 如权利要求1所述的显示面板，其中，所述第一色阻膜在所述基板上的正投影面积大于所述第二色阻膜在所述基板上的正投影面积。
  4. 如权利要求3所述的显示面板，其中，所述第一色阻膜在所述基板上的正投影面积与所述第二色阻膜在所述基板上的正投影面积之比为1.5～2.3倍。
  5. 如权利要求1所述的显示面板，其中，所述彩色滤光层上设有平坦层，所述平坦层用于平坦化所述第一色阻膜和所述第二色阻膜的断差。
  6. 如权利要求5所述的显示面板，其中，所述平坦层上设有第一透明电极层，所述第二基板上设有第二透明电极层，所述显示控制层设置在所述第一透明电极层和所述第二透明电极层之间。
  7. 如权利要求5所述的显示面板，其中，绝缘层覆盖所述主动开关。
  8. 如权利要求7所述的显示面板，其中，所述第二基板上设置所述彩色滤光层，在所述彩色滤光层上设置所述平坦层和第二透明电极层，在所述绝缘层上设置第一透明电极层，所述显示控制层设置在所述第一透明电极层和所述第二透明电极层之间。
  9. 一种显示面板，包括：
    基板，包括第一基板和第二基板；
    主动开关，设置在所述第一基板上；
    彩色滤光层，设置在所述第一基板或所述第二基板上；以及
    显示控制层，设置在所述第一基板和所述第二基板之间；
    其中，所述彩色滤光层包括多个色阻，所述色阻包括第一色阻膜和第二色阻膜，所述第一色阻膜与所述第二色阻膜设在同一个所述色阻上，所述第一色阻膜的厚度大于第二色阻膜的厚度；所述第一色阻膜与所述第二色阻膜的厚度差为0.3～0.5μm；所述第一色阻膜在所述基板上的正投影面积大于所述第二色阻膜在所述基板上的正投影面积；所述第一色阻膜在所述基板上的正投影面积与所述第二色阻膜在所述基板上的正投影面积之比为1.5～2.3倍；所述彩色滤光层上设有平坦层，所述平坦层用于平坦化所述第一色阻膜和所述第二色阻膜的断差；所述平坦层上设有第一透明电极层，所述第二基板上设有第二透明电极层，所述显示控制层设置在所述第一透明电极层和所述第二透明电极层之间。
  10. 一种显示面板的制造方法，包括：
    提供基板，所述基板包括第一基板和第二基板；
    在所述第一基板上设置主动开关；
    在所述第一基板或所述第二基板上设置彩色滤光材料层；
    采用多色调光罩制程获得不同膜厚的彩色滤光层；以及
    在所述第一基板和所述第二基板之间设置显示控制层。
  11. 如权利要求10所述的显示面板的制造方法，其中，所述采用多色调光罩制程获得不同膜厚的彩色滤光层的方法包括：
    采用多色调光罩制程在所述彩色滤光材料层上获得彩色滤光层的图案；以及
    采用显影液处理所述彩色滤光材料层获得不同膜厚的彩色滤光层。
  12. 如权利要求10所述的显示面板的制造方法，其中，所述多色调光罩包括曝光单元，所述曝光单元包括半透部和全透部，所述半透部的透光率为90％～95％。
  13. 如权利要求10所述的显示面板的制造方法，其中，所述彩色滤光层包括多个色阻，所述色阻包括第一色阻膜和第二色阻膜，所述第一色阻膜与所述第二色阻膜设在同一个所述色阻上，所述第一色阻膜的厚度大于所述第二色阻膜的厚度。
  14. 如权利要求10所述的显示面板的制造方法，其中，所述第一色阻膜 与所述第二色阻膜的厚度差为0.3～0.5μm。
  15. 如权利要求10所述的显示面板的制造方法，其中，所述第一色阻膜在所述基板上的正投影面积大于所述第二色阻膜在所述基板上的正投影面积。
  16. 如权利要求15所述的显示面板的制造方法，其中，所述第一色阻膜在所述基板上的正投影面积与所述第二色阻膜在所述基板上的正投影面积之比为1.5～2.3倍。
  17. 如权利要求10所述的显示面板的制造方法，其中，所述彩色滤光层上设有平坦层，所述平坦层用于平坦化所述第一色阻膜和所述第二色阻膜的断差。
  18. 如权利要求17所述的显示面板的制造方法，其中，所述平坦层上设有第一透明电极层，所述第二基板上设有第二透明电极层，所述显示控制层设置在所述第一透明电极层和所述第二透明电极层之间。
  19. 如权利要求17所述的显示面板的制造方法，其中，绝缘层覆盖所述主动开关。
  20. 如权利要求19所述的显示面板的制造方法，其中，所述第二基板上设置所述彩色滤光层，在所述彩色滤光层上设置所述平坦层和第二透明电极层，在所述绝缘层上设置第一透明电极层，所述显示控制层设置在所述第一透明电极层和所述第二透明电极层之间。
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