WO2021203498A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2021203498A1
WO2021203498A1 PCT/CN2020/087719 CN2020087719W WO2021203498A1 WO 2021203498 A1 WO2021203498 A1 WO 2021203498A1 CN 2020087719 W CN2020087719 W CN 2020087719W WO 2021203498 A1 WO2021203498 A1 WO 2021203498A1
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layer
liquid crystal
thickness
area
region
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PCT/CN2020/087719
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English (en)
French (fr)
Inventor
梅学东
彭邦银
金一坤
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深圳市华星光电半导体显示技术有限公司
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Priority to US16/964,218 priority Critical patent/US20210356801A1/en
Publication of WO2021203498A1 publication Critical patent/WO2021203498A1/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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • 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
    • G02F1/133345—Insulating layers
    • 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
    • G02F1/133371—Cells with varying thickness of the liquid crystal layer
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136222—Colour filters incorporated in the active matrix substrate
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G02F1/13685—Top gates

Definitions

  • the present invention relates to the field of display technology, and in particular to a display panel and a display device.
  • the present application provides a display panel and a display device to solve the technical problem that the conventional display panel is limited by the small pixel size and cannot adopt a multi-domain partitioned pixel structure to enlarge the viewing angle of the display panel.
  • the present application provides a display panel including a first substrate, a second substrate disposed opposite to the first substrate, and a liquid crystal layer located between the first substrate and the second substrate;
  • the pixel electrode layer includes at least one pixel electrode, any one of the pixel electrodes includes a first region and a second region adjacent to the first region, and the thickness of the liquid crystal of the liquid crystal layer at the first region is greater than The thickness of the liquid crystal of the liquid crystal layer at the second region.
  • the thickness of the array structure layer at the first area is smaller than the thickness of the array structure layer at the second area, so that the liquid crystal layer is in the second area.
  • the thickness of the liquid crystal at one zone is greater than the thickness of the liquid crystal layer at the second zone.
  • the array structure layer includes a thin film transistor layer provided on the substrate, and a first insulating layer provided on the thin film transistor layer, and the first insulating layer is The thickness at the first region is smaller than the thickness of the organic insulating layer at the second region.
  • the display panel further includes a color resist layer disposed between the array structure layer and the pixel electrode.
  • the display panel at least includes a first color sub-pixel area displaying a first color and a display
  • the second color sub-pixel area of the second color, the first color sub-pixel area and the second color sub-pixel area are respectively provided with a pixel electrode, and the wavelength of the first color is greater than that of the first color Wavelength of two colors;
  • the refractive index of the first insulating layer at the first color sub-pixel area is greater than the refractive index of the first insulating layer at the second color sub-pixel area;
  • the average liquid crystal thickness of the liquid crystal layer at the first color sub-pixel area is greater than the average liquid crystal thickness of the liquid crystal layer at the second color sub-pixel area.
  • the first insulating layer includes a first organic sub-layer located in the first color sub-pixel area and a second sub-layer located in the second color sub-pixel area,
  • the refractive index of the material of the first organic sublayer is greater than the refractive index of the material of the second sublayer.
  • the thickness of the array structure layer at the first color sub-pixel area is smaller than the thickness of the array structure layer at the second color sub-pixel area, so that the The average liquid crystal thickness of the liquid crystal layer at the first color sub-pixel area is greater than the average liquid crystal thickness of the liquid crystal layer at the second color sub-pixel area.
  • the thickness of the first insulating layer at the first color sub-pixel area is smaller than the thickness of the first insulating layer at the second color sub-pixel area.
  • the second region includes two second subregions, the first region corresponds to the middle of the pixel electrode, and the two second subregions are connected to the pixel electrode respectively.
  • the ends are corresponding and adjacent to both sides of the first zone.
  • the area of the first area is equal to the area of the second area.
  • the application also provides a display device, which includes a backlight module and a display panel on the backlight module;
  • the display panel includes a first substrate, a second substrate disposed opposite to the first substrate, and a liquid crystal layer located between the first substrate and the second substrate;
  • the first substrate includes a substrate, an array structure layer on the substrate, and a pixel electrode layer on the array structure layer;
  • the pixel electrode layer includes at least one pixel electrode, any one of the pixel electrodes includes a first region and a second region adjacent to the first region, and the thickness of the liquid crystal of the liquid crystal layer at the first region is greater than The thickness of the liquid crystal of the liquid crystal layer at the second region.
  • the thickness of the array structure layer at the first region is smaller than the thickness of the array structure layer at the second region, so that the liquid crystal layer is in the second region.
  • the thickness of the liquid crystal at one zone is greater than the thickness of the liquid crystal layer at the second zone.
  • the array structure layer includes a thin film transistor layer provided on the substrate, and a first insulating layer provided on the thin film transistor layer, and the first insulating layer is The thickness at the first region is smaller than the thickness of the organic insulating layer at the second region.
  • the display device further includes a color resist layer disposed between the array structure layer and the pixel electrode, and the display panel includes at least a first color sub-pixel area displaying a first color and a display
  • the second color sub-pixel area of the second color, the first color sub-pixel area and the second color sub-pixel area are respectively provided with a pixel electrode, and the wavelength of the first color is greater than that of the first color Wavelength of two colors;
  • the refractive index of the first insulating layer at the first color sub-pixel area is greater than the refractive index of the first insulating layer at the second color sub-pixel area;
  • the average liquid crystal thickness of the liquid crystal layer at the first color sub-pixel area is greater than the average liquid crystal thickness of the liquid crystal layer at the second color sub-pixel area.
  • the first insulating layer includes a first organic sub-layer located in the first color sub-pixel area and a second sub-layer located in the second color sub-pixel area,
  • the refractive index of the material of the first organic sublayer is greater than the refractive index of the material of the second sublayer.
  • the thickness of the array structure layer at the first color sub-pixel area is smaller than the thickness of the array structure layer at the second color sub-pixel area, so that the The average liquid crystal thickness of the liquid crystal layer at the first color sub-pixel area is greater than the average liquid crystal thickness of the liquid crystal layer at the second color sub-pixel area.
  • the thickness of the first insulating layer at the first color sub-pixel area is smaller than the thickness of the first insulating layer at the second color sub-pixel area.
  • the second region includes two second subregions, the first region corresponds to the middle of the pixel electrode, and the two second subregions are connected to the pixel electrode respectively.
  • the ends are corresponding and adjacent to both sides of the first zone.
  • the area of the first area is equal to the area of the second area.
  • the beneficial effect of the present application is that the present application divides the pixel electrode into a first area and a second area adjacent to the first area, and the thickness of the liquid crystal at the first area is greater than that of the liquid crystal layer in combination with the liquid crystal layer.
  • the structure of the thickness of the liquid crystal layer of the liquid crystal layer in the second region uses different brightness when light exits from the liquid crystal layer of different thickness, so that the brightness of the pixel electrode in the first region and the second region are complementary, thereby solving the problem of high resolution.
  • FIG. 1 is the first top structure diagram of the display panel of this application.
  • FIG. 2 is a second top structural view of the display panel of this application.
  • Fig. 3 is a schematic diagram of the cross-sectional hierarchical structure at A-A in Fig. 2;
  • FIG. 4 is a third top view structure diagram of the display panel of this application.
  • Fig. 5 is a schematic diagram of a cross-sectional hierarchical structure at B-B in Fig. 4;
  • Fig. 6 is a schematic diagram of another cross-sectional hierarchical structure at B-B in Fig. 4;
  • FIG. 7 is a schematic diagram of the structure of the display device of the present application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, “multiple” means two or more than two, unless otherwise specifically defined.
  • connection should be understood in a broad sense, unless otherwise clearly specified and limited.
  • it can be a fixed connection or a detachable connection.
  • Connected or integrally connected it can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction of two components relation.
  • an intermediate medium it can be the internal communication of two components or the interaction of two components relation.
  • the "on" or “under” of the first feature of the second feature may include direct contact between the first and second features, or may include the first and second features Not in direct contact but through other features between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • the present application provides a display panel 1, as shown in FIGS. 1 to 6, including a first substrate 10, a second substrate 20 disposed opposite to the first substrate 10, and a The liquid crystal layer 30 between the second substrate 20;
  • the first substrate 10 includes a substrate 11, an array structure layer 12 on the substrate 11, and a pixel electrode layer 13 on the array structure layer 12;
  • the pixel electrode layer 13 includes at least one pixel electrode 131. Any one of the pixel electrodes 131 includes a first region 1311 and a second region 1312 adjacent to the first region 1311.
  • the liquid crystal layer 30 is located in the first region 1311. The thickness of the liquid crystal in a region 1311 is greater than the thickness of the liquid crystal layer 30 in the second region 1312.
  • the pixels are denser and the pixel area is small.
  • the brightness is divided into two different parts. A large viewing angle can be achieved by complementing the brightness of different viewing angles. Only a pixel structure with high transmittance such as a four-domain pixel electrode can be used, which cannot solve the viewing angle of a high-resolution display panel.
  • the problem of narrowness seriously affects the picture quality of the display panel; this application divides the pixel electrode 131 into a first area 1311 and a second area 1312 adjacent to the first area 1311, and combines the liquid crystal layer 30 in the place.
  • the thickness of the liquid crystal at the first region 1311 is greater than the thickness of the liquid crystal layer 30 at the second region 1312, and the use of light emitting from the liquid crystal layer 30 of different thicknesses has different brightness, so that the pixel electrode 131 is
  • the brightness of the first region 1311 and the second region 1312 are complementary, thereby solving the problem of the viewing angle difference of the high-resolution display panel at different viewing angles; wherein, the pixel electrode 131 may be a four-domain pixel electrode or other low-domain pixel electrodes.
  • the pixel electrode 131 is a four-domain pixel electrode as an example. There is no special description in the following.
  • Each of the pixel electrodes 131 is a four-domain pixel electrode.
  • the pixel electrode 131 is not only used in this application. Partitions correspond to different liquid crystal thicknesses to achieve brightness complementarity in different areas to solve the problem of narrow viewing angles of high-resolution display panels. Moreover, the transmittance of the four-domain pixel electrode structure is higher than that of the eight-domain pixel electrode structure. It is beneficial to improve the overall transmittance of the display panel.
  • the first substrate 10 may be a substrate of various structural forms, which is not limited here, and the substrate 11 may be one of a rigid substrate or a flexible substrate.
  • the material of the substrate may be made of glass, quartz and other materials.
  • the substrate 11 may be a material such as polyimide.
  • the structure of the substrate 11 is generally set as a rigid substrate, which will not be described in detail here.
  • the thickness of the liquid crystal of the liquid crystal layer 30 in the first region 1311 is greater than the thickness of the liquid crystal of the liquid crystal layer 30 in the second region 1312, that is, the thickness of the first substrate 10 and the liquid crystal
  • the distance between the second substrate 20 at the first zone 1311 is greater than the distance between the first substrate 10 and the second substrate 20 at the second zone 1312, so that the first substrate 10 is filled
  • the liquid crystal layer 30 between the second substrate 20 and the second substrate 20 has different liquid crystal thicknesses in different regions.
  • the thickness of the different film structures in the display panel 1 can be adjusted to realize the first The area 1311 and the second area 1312 correspond to structures with different liquid crystal thicknesses.
  • the thickness of one film structure in the display panel 1 can be adjusted, and the thickness of other film structures can be controlled, or it can be a comprehensive adjustment method.
  • the thickness of the multiple film layer structures in the display panel 1 can be adjusted to achieve the adjustment of the distance between the first substrate 10 and the second substrate 20 so that the first region 1311 and the second region 1312 correspond to each other.
  • the purpose of different liquid crystal thickness, the specific adjustment method and the specific film structure of the adjustment are not limited here.
  • the backlight emits different brightness after passing through the first zone 1311 and the second zone 1312 corresponding to different liquid crystal thicknesses, so as to realize the first zone 1311 and the second zone 1312
  • the brightness under different viewing angles is complementary, which well solves the problem of the difference in viewing angles of the four-domain pixel electrode.
  • the thickness difference between the liquid crystal thickness of the liquid crystal layer 30 at the first region 1311 and the liquid crystal thickness at the second region 1312 can be adjusted, Under different viewing angles, the sum of the brightness value of the first area 1311 and the brightness value of the second area 1312 is always a fixed value; for example, under the first viewing angle, the brightness value of the first area 1311 Is L11, L12 of the brightness value of the second region 1312, at the second viewing angle, the brightness value of the first region 1311 is L21, and the brightness value of the second region 1312 is L22, where L11 ⁇ L12 ; L21 ⁇ L22
  • the thickness of the array structure layer 12 at the first region 1311 is smaller than the thickness of the array structure layer 12 at the second region 1312, so that the The thickness of the liquid crystal layer 30 at the first region 1311 is greater than the thickness of the liquid crystal layer 30 at the second region 1312; obviously, in this embodiment, the second substrate 20, the substrate can be maintained Under the condition that the thickness of the bottom 11 and the pixel electrode layer 13 are unchanged, the thickness of the array structure layer 12 in the first region 1311 and the second region 1312 is adjusted to achieve the adjustment of the first substrate 10 and the The distance between the second substrate 20 at the first region 1311 and the second region 1312 is such that the liquid crystal layer 30 filled between the first substrate 10 and the second substrate 20 is in the first region 1311 and the second region 1312.
  • the first region 1311 and the second region 1312 have different liquid crystal thicknesses.
  • the array structure layer 12 includes a thin film transistor layer 121 provided on the substrate 11, and a first insulating layer 122 provided on the thin film transistor layer 121 ,
  • the thickness of the first insulating layer 122 at the first region 1311 is smaller than the thickness of the organic insulating layer at the second region 1312; wherein, the material of the first insulating layer 122 may have a variety of
  • the first insulating layer 122 is specifically a PFA (Polymer Film on Array) structure, and the material of the first insulating layer 122 is an organic material.
  • the first insulating layer 122 is specifically adjusted by adjusting the first insulating layer 122.
  • the thickness of the insulating layer 122 at the first region 1311 and the second region 1312 remains unchanged from the original thickness of the thin film transistor layer 121, so that the array structure layer 12 is in the first region.
  • the adjustment of the thickness at 1311 and the second region 1312 obviously, the first insulating layer 122 is located on the side of the array structure layer 12 that is close to the liquid crystal layer 30, and the first insulating layer 122 is adjusted
  • the thickness can be maximized to reduce the impact on the thin film transistor layer 121 in the array structure layer 12. It can be understood that the pixel electrode layer 13 is disposed on the first insulating layer 122 and the liquid crystal layer.
  • the first insulating layer 122 is The first region 1311 has a concave structure, and the pixel electrode layer 13 is attached to the first insulating layer 122 in the first region 1311 to have a concave structure.
  • the display panel 1 further includes a colored structure.
  • the resist layer 40, the color resist layer 40 can be provided on one side of the first substrate 10 or on the side of the second substrate 20.
  • an insulating layer 122 at the first area 1311 and the second area 1312 affects other structural and functional film layers in the display panel 1, such as the color resist layer 40.
  • the color can be changed.
  • the resist layer 40 is disposed on one side of the second substrate 20.
  • the thin film transistor layer 121 includes a plurality of thin film transistors.
  • the thin film transistor may be of an etch-stop type, a back-channel etch type, or a top-gate thin-film transistor type structure, which is not specifically limited.
  • the thin film transistor of the top gate thin film transistor type may include an active layer 1211 on the substrate 11, a gate insulating layer 1212 on the active layer 1211, and a gate on the gate insulating layer 1212.
  • the first insulating layer 122 is disposed on the second insulating layer 1214 and the source-drain layer 1215 and cover the source-drain layer 1215.
  • the color resist layer 40 is located on one side of the first substrate 10 and between the array structure layer 12 and the pixel electrode 131, so
  • the display panel 1 includes at least a first color sub-pixel area 100 displaying a first color and a second color sub-pixel area 200 displaying a second color.
  • the first color sub-pixel area 100 and the second color sub-pixel area A corresponding pixel electrode 131 is provided in the area 200, the wavelength of the first color is greater than the wavelength of the second color, wherein the color resist layer 40 includes a plurality of color resist blocks 41 arranged in an array, any Each of the color resist blocks 41 is provided with a pixel electrode 131.
  • the refractive index of the first insulating layer 122 at the first color sub-pixel area 100 is greater than the refractive index of the first insulating layer 122 at the second color sub-pixel area 200;
  • the average liquid crystal thickness of the liquid crystal layer 30 at the first color sub-pixel area 100 is greater than the average liquid crystal thickness of the liquid crystal layer 30 at the second color sub-pixel area 200.
  • the first substrate 10 is a COA (CF on Array, color resist layer on the array) type substrate, and when the display panel 1 is used in specific use, the backlight passes through the substrate 11 and the film in sequence.
  • COA CF on Array, color resist layer on the array
  • the backlight passes through the substrate 11 and the film in sequence.
  • the changes in the display brightness of the display panel 1 of the transistor layer 121, the color resist layer 40, the pixel electrode layer 13, the liquid crystal layer 30, and the second substrate 20 are affected by many factors.
  • the display panel 1 at least includes a first color sub-pixel area 100 displaying a first color and a second color sub-pixel area 200 displaying a second color, because the first color sub-pixel area 100 and the second color sub-pixel area
  • the colors displayed in the area 200 are different, and the wavelengths of light of different colors are different, so that the display panel 1 has different brightness in the sub-pixel areas of different colors, especially at a large viewing angle, causing the display panel 1 to produce a color shift; specifically ,
  • the brightness influencing factor ⁇ that affects the display of the display panel 1 is:
  • ⁇ is the wavelength
  • d is the thickness of the liquid crystal layer 30, and ⁇ n is the relative refractive index
  • the wavelength of the first color is greater than the wavelength of the second color
  • the first insulating layer 122 is adjusted in the first color
  • the refractive index at the sub-pixel area 100 is greater than the refractive index of the first insulating layer 122 at the second-color sub-pixel area 200; and/or adjust the liquid crystal layer 30 in the first-color sub-pixel area 100
  • the average liquid crystal thickness at ⁇ is greater than the average liquid crystal thickness of the liquid crystal layer 30 at the second color sub-pixel area 200; so that the brightness influencing factor of the first color is equal to the brightness influencing factor of the second color, In this way, the brightness displayed in the first color sub-pixel area 100 and the second color sub-pixel area 200 of different colors is equal, so as to solve the problem of the color shift of the display panel 1.
  • the first insulating layer 122 includes a first sub-layer 1221 located in the first color sub-pixel area 100 and a first sub-layer 1221 located in the second color sub-pixel area 200.
  • the second sub-layer 1222, the refractive index of the material of the first sub-layer 1221 is greater than the refractive index of the material of the second sub-layer 1222, specifically, it may be the first sub-layer 1221 and the second sub-layer 1221
  • the layer 1222 is made of different materials.
  • the refractive index of the material of the first sub-layer 1221 is greater than the refractive index of the material of the second sub-layer 1222.
  • the second sub-layer 1222 is doped with corresponding materials to affect the refractive index of the first sub-layer 1221 and/or the second sub-layer 1222, so that the refractive index of the first sub-layer 1221 is greater than that of the first sub-layer 1221.
  • the refractive index of the second sub-layer 1222 is described.
  • the thickness of the array structure layer 12 at the first color sub-pixel area 100 is smaller than that of the array structure layer 12 at the second color sub-pixel area 200 Thickness, so that the average liquid crystal thickness of the liquid crystal layer 30 at the first color sub-pixel area 100 is greater than the average liquid crystal thickness of the liquid crystal layer 30 at the second color sub-pixel area 200;
  • a pixel electrode 131 is provided in the first color sub-pixel area 100 and the second color sub-pixel area 200 respectively, and the pixel electrode 131 includes the first area 1311 and the second area 1312, the first color sub-pixel area 100 and the second color sub-pixel area 200 both include a first area 1311 and a second area 1312, and the liquid crystal layer 30 is in the first color
  • the average liquid crystal thickness in the sub-pixel area 100 is greater than the average liquid crystal thickness of the liquid crystal layer 30 in the second color sub-pixel area 200, specifically including that the liquid crystal layer 30 is in the first color sub-pixel area 100
  • the thickness of the liquid crystal at the second area 1312 in the one-color sub-pixel area 100 is greater than the thickness of the liquid crystal layer 30 at the second area 1312 in the second-color sub-pixel area 200, so that the The display brightness of the display panel 1 in the first color sub-pixel area 100 and the second color sub-pixel area 200 is the same, which has solved the problem of color shift of the display panel 1 under a large viewing angle.
  • the thickness of the first insulating layer 122 at the first color sub-pixel area 100 is smaller than that of the first insulating layer 122 at the second color sub-pixel area 200.
  • the thickness of the original thin film transistor layer 121 can be maintained.
  • the first insulating layer 122 is located in the array On the side of the structure layer 12 that is close to the liquid crystal layer 30, adjusting the thickness of the first insulating layer 122 can minimize the impact on the thin film transistor layer 121 in the array structure layer 12.
  • the display panel 1 includes a red sub-pixel area, a green sub-pixel area, and a blue sub-pixel area
  • each of the color resist blocks 41 includes a first color color resist block, a second color Color resistance block and third color color resistance block
  • the first color color resistance block, second color color resistance block and third color color resistance block are any of red color resistance block, green color resistance block, and blue color resistance block
  • the red color resist block is arranged in the red sub-pixel area
  • the green color resist block is arranged in the green sub-pixel area
  • the blue color resist block is arranged In the blue sub-pixel area; it can be understood that the relationship between the red light wavelength ⁇ R , the green light wavelength ⁇ G and the blue light wavelength ⁇ B is: ⁇ R > ⁇ G > ⁇ B ; according to the foregoing According to the thickness d and the relative refractive index ⁇ n of the liquid crystal layer 30 corresponding to the first color sub-pixel area 100 and the second
  • the thickness of the liquid crystal in the sub-pixel area and the blue sub-pixel area is: d R >d G >d B ; and/or, the relative refractive index is ⁇ n R > ⁇ n G > ⁇ n B ; the specific structure will not be repeated here. .
  • the dotted line in the figure divides the pixel electrode 131 into regions, and the area of the first region 1311 is equal to the area of the second region 1312; it is understandable In the foregoing, the present application adjusts the thickness difference between the thickness of the liquid crystal layer 30 at the first region 1311 and the thickness of the liquid crystal at the second region 1312 to achieve different viewing angles.
  • the sum of the brightness value of the first area 1311 and the brightness value of the second area 1312 is always a fixed value; thereby solving the problem of the viewing angle difference of the display panel 1 under different viewing angles; by making the first area 1311
  • the area of the area 1311 is equal to the area of the second area 1312, and the size relationship between the first area 1311 and the second area 1312 is determined, which is convenient for adjusting the liquid crystal of the liquid crystal layer 30 at the first area 1311.
  • the relationship between the thickness and the thickness of the liquid crystal at the second region 1312 better realizes the brightness complementarity of the first region 1311 and the second region 1312 at different viewing angles, and improves the display panel 1The effect of narrow viewing angle.
  • the second region 1312 includes two second sub-regions 13121, the first region 1311 corresponds to the middle of the pixel electrode 131, and the two second sub-regions 13121 They correspond to both ends of the pixel electrode 131, and are adjacent to both sides of the first region 1311; it is understandable that the first region 1311 and the second region 1312 can be divided into various types. As shown in FIG. 1, the first region and the second region are symmetrically distributed. In this embodiment, the pixel electrode 131 is a four-domain pixel electrode, and the second region 1312 includes two second sub-regions.
  • Area 13121 the first area 1311 corresponds to the middle of the pixel electrode 131, and the two second sub-areas 13121 respectively correspond to the two ends of the pixel electrode 131 and are adjacent to the first area 1311. Side; so that each domain region of the pixel electrode 131 is divided equally into the first region 1311 and the second region 1312, to better realize the first region 1311 and the second region 1312.
  • the brightness under different viewing angles is complementary, and the effect of improving the narrow viewing angle of the display panel 1 is improved.
  • the present application also provides a display device.
  • the display device includes a backlight module 2 and a display panel 1 as described in any one of the previous items on the backlight module 2.
  • the working principle of the display device is the same as or similar to the working principle of the above-mentioned display panel 1, and will not be repeated here.
  • the display panel 1 of the present application includes a first substrate 10, a second substrate 20 disposed opposite to the first substrate 10, and a liquid crystal located between the first substrate 10 and the second substrate 20.
  • Layer 30; the first substrate 10 includes a substrate 11, an array structure layer 12 located on the substrate 11, and a pixel electrode layer 13 located on the array structure layer 12; the pixel electrode layer 13 includes at least A pixel electrode 131. Any one of the pixel electrodes 131 includes a first region 1311 and a second region 1312 adjacent to the first region 1311.
  • the thickness of the liquid crystal layer 30 at the first region 1311 is greater than The thickness of the liquid crystal layer 30 at the second region 1312; by dividing the pixel electrode 131 into a first region 1311 and a second region 1312 adjacent to the first region 1311, the liquid crystal layer 30 is combined
  • the thickness of the liquid crystal at the first region 1311 is greater than the thickness of the liquid crystal layer 30 at the second region 1312.
  • the use of light emitting from the liquid crystal layer 30 of different thicknesses has different brightness to realize the pixel electrode
  • the brightness of the 131 in the first area 1311 and the second area 1312 is complementary, thereby solving the problem of the viewing angle difference of the high-resolution display panel 1 under different viewing angles.

Abstract

一种显示面板（1）及显示装置，所述显示面板（1）包括第一基板（10）、第二基板（20）、及位于第一基板（10）与第二基板（20）之间的液晶层（30）；第一基板（10）包括衬底（11）、阵列结构层（12）、及像素电极层（13）；像素电极层（13）包括至少一像素电极（131），任一像素电极（131）包括第一区（1311）和与第一区（1311）相邻的第二区（1312），液晶层（30）在所述第一区（1311）处的液晶厚度大于液晶层（30）在第二区（1312）处的液晶厚度。

Description

显示面板及显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种显示面板及显示装置。
背景技术
LCD(Liquid crystal displays，液晶显示器)是一种被广泛应用的平板显示器，主要是通过液晶开关调制背光源光场强度来实现画面显示；然而，由于液晶分子在光学上表现为各向异性，当用户从不同角度观看显示器屏幕时，不同角度所看到的亮度会不同，导致液晶显示器屏幕的视角较为狭窄，现有是通过将像素电极设计为诸如八畴像素电极等多畴结构，将一子像素区的亮度分为不同的两个部分，利用不同视角的亮度互补来实现大视角。
技术问题
随着显示技术的发展，在诸如8K液晶显示器等高分辨率的显示面板中，像素较为密集，且像素面积较小，由于空间的限制一般采用四畴像素电极结构，无法很好的解决高分辨率显示面板视角窄的问题，严重影响了显示面板的画面品质。
技术解决方案
本申请提供一种显示面板及显示装置，以解决现有显示面板中受限于像素尺寸较小，无法采用多畴分区的像素结构来扩大显示面板视角的技术问题。
为解决上述问题，本申请提供的技术方案如下：
本申请提供了一种显示面板，包括第一基板、与所述第一基板相对设置的第二基板、及位于所述第一基板与所述第二基板之间的液晶层；
所述第一基板包括衬底、位于所述衬底上的阵列结构层、及位于所述阵列结构层上的像素电极层；及
所述像素电极层包括至少一像素电极，任一所述像素电极包括第一区和与所述第一区相邻的第二区，所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度。
在本申请所提供的显示面板中，所述阵列结构层在所述第一区处的厚度小于所述阵列结构层在所述第二区处的厚度，以使所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度。
在本申请所提供的显示面板中，所述阵列结构层包括设于所述衬底上的薄膜晶体管层、及设于所述薄膜晶体管层上的第一绝缘层，所述第一绝缘层在所述第一区处的厚度小于所述机绝缘层在所述第二区处的厚度。
在本申请所提供的显示面板中，还包括设于所述阵列结构层与所述像素电极之间的色阻层，所述显示面板至少包括显示第一颜色的第一颜色子像素区和显示第二颜色的第二颜色子像素区，所述第一颜色子像素区内和所述第二颜色子像素区内分别对应设有一所述像素电极，所述第一颜色的波长大于所述第二颜色的波长；
所述第一绝缘层在所述第一颜色子像素区处的折射率大于所述第一绝缘层在所述第二颜色子像素区处的折射率；和/或
所述液晶层在所述第一颜色子像素区处的平均液晶厚度大于所述液晶层在所述第二颜色子像素区处的平均液晶厚度。
在本申请所提供的显示面板中，所述第一绝缘层包括位于所述第一颜色子像素区内的第一有机子层和位于所述第二颜色子像素区内的第二子层，所述第一有机子层的材料的折射率大于所述第二子层的材料的折射率。
在本申请所提供的显示面板中，所述阵列结构层在所述第一颜色子像素区处的厚度小于所述阵列结构层在所述第二颜色子像素区处的厚度，以使所述液晶层在所述第一颜色子像素区处的平均液晶厚度大于所述液晶层在所述第二颜色子像素区处的平均液晶厚度。
在本申请所提供的显示面板中，所述第一绝缘层在所述第一颜色子像素区处的厚度小于所述第一绝缘层在所述第二颜色子像素区处的厚度。
在本申请所提供的显示面板中，所述第二区包括两第二子区，所述第一区与所述像素电极中部相对应，两所述第二子区分别与所述像素电极两端部相对 应，且邻接于所述第一区两侧。
在本申请所提供的显示面板中，所述第一区的面积与所述第二区的面积相等。
本申请还提供一种显示装置，所述显示装置包括背光模组、及位于所述背光模组上的显示面板；
所述显示面板包括第一基板、与所述第一基板相对设置的第二基板、及位于所述第一基板与所述第二基板之间的液晶层；
所述第一基板包括衬底、位于所述衬底上的阵列结构层、及位于所述阵列结构层上的像素电极层；
所述像素电极层包括至少一像素电极，任一所述像素电极包括第一区和与所述第一区相邻的第二区，所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度。
在本申请所提供的显示装置中，所述阵列结构层在所述第一区处的厚度小于所述阵列结构层在所述第二区处的厚度，以使所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度。
在本申请所提供的显示装置中，所述阵列结构层包括设于所述衬底上的薄膜晶体管层、及设于所述薄膜晶体管层上的第一绝缘层，所述第一绝缘层在所述第一区处的厚度小于所述机绝缘层在所述第二区处的厚度。
在本申请所提供的显示装置中，还包括设于所述阵列结构层与所述像素电极之间的色阻层，所述显示面板至少包括显示第一颜色的第一颜色子像素区和显示第二颜色的第二颜色子像素区，所述第一颜色子像素区内和所述第二颜色子像素区内分别对应设有一所述像素电极，所述第一颜色的波长大于所述第二颜色的波长；
所述第一绝缘层在所述第一颜色子像素区处的折射率大于所述第一绝缘层在所述第二颜色子像素区处的折射率；和/或
所述液晶层在所述第一颜色子像素区处的平均液晶厚度大于所述液晶层在所述第二颜色子像素区处的平均液晶厚度。
在本申请所提供的显示装置中，所述第一绝缘层包括位于所述第一颜色子像素区内的第一有机子层和位于所述第二颜色子像素区内的第二子层，所述第 一有机子层的材料的折射率大于所述第二子层的材料的折射率。
在本申请所提供的显示装置中，所述阵列结构层在所述第一颜色子像素区处的厚度小于所述阵列结构层在所述第二颜色子像素区处的厚度，以使所述液晶层在所述第一颜色子像素区处的平均液晶厚度大于所述液晶层在所述第二颜色子像素区处的平均液晶厚度。
在本申请所提供的显示装置中，所述第一绝缘层在所述第一颜色子像素区处的厚度小于所述第一绝缘层在所述第二颜色子像素区处的厚度。
在本申请所提供的显示装置中，所述第二区包括两第二子区，所述第一区与所述像素电极中部相对应，两所述第二子区分别与所述像素电极两端部相对应，且邻接于所述第一区两侧。
在本申请所提供的显示装置中，所述第一区的面积与所述第二区的面积相等。
有益效果
本申请的有益效果为：本申请通过将像素电极划分为第一区和与所述第一区相邻的第二区，结合所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度的结构，利用光从不同厚度的液晶层出射时具备不同的亮度，实现像素电极在第一区和第二区的亮度互补，从而解决了高分辨率显示面板在不同视角下的视角差问题。
附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请显示面板的第一种俯视结构图；
图2为本申请显示面板的第二种俯视结构图；
图3为图2中在A-A处的剖面层级结构示意图；
图4为本申请显示面板的第三种俯视结构图；
图5为图4中在B-B处的一种剖面层级结构示意图；
图6为图4中在B-B处的另一种剖面层级结构示意图；及
图7为本申请显示装置的结构示意图。
本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”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所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
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，也可以是电连接或可以相互通讯；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或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上” 或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
现结合具体实施例对本申请的技术方案进行描述。
本申请提供一种显示面板1，如图1-图6所示，包括第一基板10、与所述第一基板10相对设置的第二基板20、及位于所述第一基板10与所述第二基板20之间的液晶层30；
所述第一基板10包括衬底11、位于所述衬底11上的阵列结构层12、及位于所述阵列结构层12上的像素电极层13；
所述像素电极层13包括至少一像素电极131，任一所述像素电极131包括第一区1311和与所述第一区1311相邻的第二区1312，所述液晶层30在所述第一区1311处的液晶厚度大于所述液晶层30在所述第二区1312处的液晶厚度。
可以理解的是，现有诸如8K液晶显示器等高分辨率的显示面板中，像素较为密集，且像素面积较小，像素电极无法采用诸如八畴像素电极等多畴结构，以将一子像素区的亮度分为不同的两个部分，通过不同视角的亮度互补来实现大视角，只能采用类似四畴像素电极等穿透率较高的像素结构，无法很好的解决高分辨率显示面板视角窄的问题，严重影响了显示面板的画面品质；本申请通过将像素电极131划分为第一区1311和与所述第一区1311相邻的第二区 1312，结合所述液晶层30在所述第一区1311处的液晶厚度大于所述液晶层30在所述第二区1312处的液晶厚度的结构，利用光从不同厚度的液晶层30出射时具备不同的亮度，实现像素电极131在第一区1311和第二区1312的亮度互补，从而解决了高分辨率显示面板在不同视角下的视角差问题；其中，所述像素电极131可以是四畴像素电极，也可以其它低畴像素电极，本申请中以所述像素电极131为四畴像素电极为例，后续无特殊说明，各所述像素电极131均为四畴像素电极，显然，本申请中不仅通过将所述像素电极131分区并对应不同的液晶厚度，实现不同区域的亮度互补以解决高分辨率显示面板的窄视角问题，而且，四畴像素电极的透过率比八畴像素电极结构的穿透率更高，也有利于提高所述显示面板整体的穿透率。
承上，如图3所示，显然，所述第一基板10可以是多种结构形式的基板，在此不做限制，所述衬底11可以为刚性衬底或柔性衬底中的一种。当所述衬底11为刚性衬底时，所述衬底的材料可以为玻璃、石英等材料制备。当所述衬底11为柔性衬底时，所述衬底11可以为聚酰亚胺等材料。而在LCD显示面板中，衬底11结构一般均设置为刚性衬底，此处不对其作详细介绍。
值得注意的是，所述液晶层30在所述第一区1311处的液晶厚度大于所述液晶层30在所述第二区1312处的液晶厚度，也即是所述第一基板10与所述第二基板20在所述第一区1311处的距离大于所述第一基板10与所述第二基板20在所述第二区1312处的距离，以使得填充于所述第一基板10与所述第二基板20之间的液晶层30在不同的区域具备不同的液晶厚度，在一实施例中，可以通过调整所述显示面板1中不同膜层结构的厚度以实现所述第一区1311和所述第二区1312对应不同液晶厚度的结构，具体的，可以是调整所述显示面板1中一膜层结构的厚度，并控制其它膜层结构的厚度，也可以是综合调整所述显示面板1中多个膜层结构的厚度，从而实现所述第一基板10与所述第二基板20之间间距的调整，以达到所述第一区1311和所述第二区1312对应不同液晶厚度的目的，具体的调整方式和调整的具体膜层结构在此不做限制，
承上，在具体使用时，背光穿过对应不同液晶厚度的所述第一区1311和所述第二区1312后射出的亮度不同，以实现所述第一区1311和所述第二区1312在不同视角下的亮度互补，很好的解决了四畴像素电极存在的视角差的 问题，并且，由于所述液晶层30在所述第一区1311处的液晶厚度大于所述液晶层30在所述第二区1312处的液晶厚度，所述第一区1311的亮度值大于所述第二区1312的亮度值，以使为四畴结构的所述像素电极131实现八畴像素电极的显示效果，在本实施例中，在具体条件下，可以通过调整所述液晶层30在所述第一区1311处的液晶厚度与在所述第二区1312处的液晶厚度之间的厚度差，实现在不同视角下，所述第一区1311的亮度值和所述第二区1312的亮度值之和始终为一固定值；例如，在第一视角下，所述第一区1311的亮度值为L11，所述第二区1312的亮度值的L12，在第二视角下，所述第一区1311的亮度值为L21，所述第二区1312的亮度值的L22，其中，L11＜L12；L21＜L22；L11+L12＝L21+L22，从而解决所述显示面板1在不同视角下的视角差问题。
在一实施例中，如图3所示，所述阵列结构层12在所述第一区1311处的厚度小于所述阵列结构层12在所述第二区1312处的厚度，以使所述液晶层30在所述第一区1311处的液晶厚度大于所述液晶层30在所述第二区1312处的液晶厚度；显然，本实施例中，可以在保持所述第二基板20、衬底11以及像素电极层13厚度不变的情况下，通过调整所述阵列结构层12在所述第一区1311和所述第二区1312的厚度，以达到调整所述第一基板10与所述第二基板20在所述第一区1311和所述第二区1312处的间距，以使得填充于所述第一基板10与所述第二基板20之间的液晶层30在所述第一区1311和所述第二区1312处具备不同的液晶厚度。
承上，如图3所示，具体的，所述阵列结构层12为包括设于所述衬底11上的薄膜晶体管层121、及设于所述薄膜晶体管层121上的第一绝缘层122，所述第一绝缘层122在所述第一区1311处的厚度小于所述机绝缘层在所述第二区1312处的厚度；其中，所述第一绝缘层122的材料可以具有多种选择，本实施例中，具体所述第一绝缘层122为PFA(Polymer Film on Array)结构，所述第一绝缘层122的材料为有机材料，本实施例中，具体通过调整所述第一绝缘层122在所述第一区1311处和所述第二区1312处的厚度，保持原有的所述薄膜晶体管层121厚度不变，实现对所述阵列结构层12在所述第一区1311处和所述第二区1312处的厚度的调整，显然，所述第一绝缘层122位于所述阵 列结构层12中靠近所述液晶层30的一侧，调整所述第一绝缘层122的厚度可以最大化的减小对所述阵列结构层12中所述薄膜晶体管层121的影响，可以理解的是，所述像素电极层13设置于所述第一绝缘层122与所述液晶层30之间，由于所述第一绝缘层122在所述第一区1311处的厚度小于所述机绝缘层在所述第二区1312处的厚度，使得所述第一绝缘层122在所述第一区1311处呈凹型结构，所述像素电极层13在所述第一区1311处与所述第一绝缘层122贴合呈凹型结构，本实施例中，所述显示面板1还包括有色阻层40，所述色阻层40既可以设置在所述第一基板10的一侧，也可以设置于所述第二基板20的一侧，在此不做限制，为避免对所述第一绝缘层122在所述第一区1311处和所述第二区1312处厚度不同对所述显示面板1中诸如所述色阻层40等其它结构功能膜层的影响，可以将所述色阻层40设置于所述第二基板20一侧。
承上，具体的，如图3所示，所述薄膜晶体管层121包括多个薄膜晶体管。所述薄膜晶体管可以为蚀刻阻挡型、背沟道蚀刻型或顶栅薄膜晶体管型等结构，具体没有限制。例如顶栅薄膜晶体管型的所述薄膜晶体管可以包括位于所述衬底11上的有源层1211、位于所述有源层1211上栅绝缘层1212、位于所述栅绝缘层1212上的栅极层1213、位于所述栅极层1213上的第二绝缘层1214、及位于所述第二绝缘层1214上的源漏极层1215，所述第一绝缘层122设置于所述第二绝缘层1214和所述源漏极层1215上且覆盖所述源漏极层1215。
在一实施例中，如图5-图6所示，所述色阻层40位于所述第一基板10的一侧，且位于所述阵列结构层12与所述像素电极131之间，所述显示面板1至少包括显示第一颜色的第一颜色子像素区100和显示第二颜色的第二颜色子像素区200，所述第一颜色子像素区100内和所述第二颜色子像素区200内分别对应设有一所述像素电极131，所述第一颜色的波长大于所述第二颜色的波长，其中，所述色阻层40包括多个呈阵列布置的色阻块41，任一所述色阻块41上均设有一所述像素电极131。
所述第一绝缘层122在所述第一颜色子像素区100处的折射率大于所述第一绝缘层122在所述第二颜色子像素区200处的折射率；和/或
所述液晶层30在所述第一颜色子像素区100处的平均液晶厚度大于所述 液晶层30在所述第二颜色子像素区200处的平均液晶厚度。
可以理解的是，所述第一基板10为COA(CF on Array，色阻层位于阵列上)型基板，所述显示面板1在具体使用时，背光依次经过所述衬底11、所述薄膜晶体管层121、所述色阻层40、所述像素电极层13、所述液晶层30和所述第二基板20所述显示面板1的显示亮度的变化受到多种因素的影响，显然，所述显示面板1至少包括显示第一颜色的第一颜色子像素区100和显示第二颜色的第二颜色子像素区200，由于所述第一颜色子像素区100和所述第二颜色子像素区200显示的颜色不同，不同颜色的光的波长不同，使得所述显示面板1在不同颜色的子像素区亮度不同，尤其是在大视角下，使得所述显示面板1产生色偏；具体的，影响所述显示面板1显示的亮度影响因子δ为：
Figure PCTCN2020087719-appb-000001
其中，λ为波长，d为液晶层30厚度，Δn为相对折射率；所述第一颜色的波长大于所述第二颜色的波长，通过调整所述第一绝缘层122在所述第一颜色子像素区100处的折射率大于所述第一绝缘层122在所述第二颜色子像素区200处的折射率；和/或调整所述液晶层30在所述第一颜色子像素区100处的平均液晶厚度大于所述液晶层30在所述第二颜色子像素区200处的平均液晶厚度；以使得所述第一颜色的亮度影响因子与所述第二颜色的亮度影响因子相等，从而达到不同颜色的第一颜色子像素区100和所述第二颜色子像素区200处显示的亮度相等，以解决所述显示面板1产生色偏的问题。
在一实施例中，如图6所示，所述第一绝缘层122包括位于所述第一颜色子像素区100内的第一子层1221和位于所述第二颜色子像素区200内的第二子层1222，所述第一子层1221的材料的折射率大于所述第二子层1222的材料的折射率，具体的，可以是所述第一子层1221和所述第二子层1222采用不同的材料制作形成，所述第一子层1221的材料的折射率大于所述第二子层1222的材料的折射率，也可以是通过在所述第一子层1221和/或所述第二子层1222中参杂相应的材料，以影响所述第一子层1221和/或所述第二子层1222的折射率，使得所述第一子层1221的折射率大于所述第二子层1222的折射率。
在一实施例中，如图5所示，所述阵列结构层12在所述第一颜色子像素 区100处的厚度小于所述阵列结构层12在所述第二颜色子像素区200处的厚度，以使所述液晶层30在所述第一颜色子像素区100处的平均液晶厚度大于所述液晶层30在所述第二颜色子像素区200处的平均液晶厚度；可以理解的是，所述第一颜色子像素区100内和所述第二颜色子像素区200内分别对应设有一所述像素电极131，所述像素电极131包括所述第一区1311和所述第二区1312，所述第一颜色子像素区100和所述第二颜色子像素区200均包括一所述第一区1311和一所述第二区1312，所述液晶层30在所述第一颜色子像素区100处的平均液晶厚度大于所述液晶层30在所述第二颜色子像素区200处的平均液晶厚度，具体包括，所述液晶层30在所述第一颜色子像素区100内的所述第一区1311处的液晶厚度大于所述液晶层30在所述第二颜色子像素区200内的所述第一区1311处的液晶厚度，且所述液晶层30在所述第一颜色子像素区100内的所述第二区1312处的液晶厚度大于所述液晶层30在所述第二颜色子像素区200内的所述第二区1312处的液晶厚度，使得所述显示面板1在所述第一颜色子像素区100和所述第二颜色子像素区200的显示亮度相同，已解决所述显示面板1在大视角下色偏的问题。
承上，具体的，如图5所示，所述第一绝缘层122在所述第一颜色子像素区100处的厚度小于所述第一绝缘层122在所述第二颜色子像素区200处的厚度；显然，通过调整所述第一绝缘层122在所述第一颜色子像素区100处和所述第二颜色子像素区200处的厚度，保持原有的薄膜晶体管层121厚度不变，实现对所述阵列结构层12在所述第一颜色子像素区100处和所述第二颜色子像素区200处的厚度的调整，显然，所述第一绝缘层122位于所述阵列结构层12中靠近所述液晶层30的一侧，调整所述第一绝缘层122的厚度可以最大化的减小对所述阵列结构层12中所述薄膜晶体管层121的影响。
值得注意的是，在一具体应用，所述显示面板1包括红色子像素区、绿色子像素区和蓝色子像素区，各所述色阻块41包括第一颜色色阻块、第二颜色色阻块和第三颜色色阻块，所述第一颜色色阻块、第二颜色色阻块和第三颜色色阻块为红色色阻块、绿色色阻块、蓝色色阻块的任意一种组合形式，在此不做限制，所述红色色阻块设置于所述红色子像素区内，所述绿色色阻块设置于所述绿色子像素区内，所述蓝色色阻块设置于所述蓝色子像素区内；可以理解 的是，红色光波长λ R、绿色光波长λ G和蓝色光波长λ B之间的关系为：λ R＞λ G＞λ B；根据前述针对两不同颜色第一颜色子像素区100和第二颜色子像素区200的之间对应液晶层30厚度d和相对折射率Δn可知，调整所述液晶层30在所述红色子像素区、绿色子像素区和所述蓝色子像素区的液晶厚度为：d R＞d G＞d B；和/或，相对折射率为Δn R＞Δn G＞Δn B；具体结构形式在此不再赘述。
在一实施例中，如图1-图2所示，图中虚线将所述像素电极131进行区域的划分，所述第一区1311的面积与所述第二区1312的面积相等；可以理解的是，在前述中，本申请通过调整所述液晶层30在所述第一区1311处的液晶厚度与在所述第二区1312处的液晶厚度之间的厚度差，实现在不同视角下，所述第一区1311的亮度值和所述第二区1312的亮度值之和始终为一固定值；从而解决所述显示面板1在不同视角下的视角差问题；通过使所述第一区1311的面积与所述第二区1312的面积相等，确定所述第一区1311与所述第二区1312的大小关系，便于调整所述液晶层30在所述第一区1311处的液晶厚度与在所述第二区1312处的液晶厚度之间的大小关系，更好的实现所述第一区1311和所述第二区1312在不同视角下的亮度互补，提升改善所述显示面板1视角窄的效果。
在一实施例中，如图2所示，所述第二区1312包括两第二子区13121，所述第一区1311与所述像素电极131中部相对应，两所述第二子区13121分别与所述像素电极131两端部相对应，且邻接于所述第一区1311两侧；可以理解的是，所述第一区1311和所述第二区1312具体的划分可以是多种形成，如图1所示，所述第一区和所述第二区呈对称分布，本实施例中，所述像素电极131为四畴像素电极，所述第二区1312包括两第二子区13121，所述第一区1311与所述像素电极131中部相对应，两所述第二子区13121分别与所述像素电极131两端部相对应，且邻接于所述第一区1311两侧；从而将所述像素电极131的中每一畴区平均分到所述第一区1311和所述第二区1312内，更好的实现所述第一区1311和所述第二区1312在不同视角下的亮度互补，提升改善所述显示面板1视角窄的效果。
本申请还提供一种显示装置，如图7所示，所述显示装置包括背光模组2、 及位于所述背光模组2上如前任一项所述的显示面板1本实施例中的所述显示装置的工作原理与上述显示面板1的工作原理相同或相似，此处不再赘述。
综上所述，本申请显示面板1包括第一基板10、与所述第一基板10相对设置的第二基板20、及位于所述第一基板10与所述第二基板20之间的液晶层30；所述第一基板10包括衬底11、位于所述衬底11上的阵列结构层12、及位于所述阵列结构层12上的像素电极层13；所述像素电极层13包括至少一像素电极131，任一所述像素电极131包括第一区1311和与所述第一区1311相邻的第二区1312，所述液晶层30在所述第一区1311处的液晶厚度大于所述液晶层30在所述第二区1312处的液晶厚度；通过将像素电极131划分为第一区1311和与所述第一区1311相邻的第二区1312，结合所述液晶层30在所述第一区1311处的液晶厚度大于所述液晶层30在所述第二区1312处的液晶厚度的结构，利用光从不同厚度的液晶层30出射时具备不同的亮度，实现像素电极131在第一区1311和第二区1312的亮度互补，从而解决了高分辨率显示面板1在不同视角下的视角差问题。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种显示面板，包括第一基板、与所述第一基板相对设置的第二基板、及位于所述第一基板与所述第二基板之间的液晶层；
    所述第一基板包括衬底、位于所述衬底上的阵列结构层、及位于所述阵列结构层上的像素电极层；
    所述像素电极层包括至少一像素电极，任一所述像素电极包括第一区和与所述第一区相邻的第二区，所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度。
  2. 根据权利要求1所述的显示面板，其中，所述阵列结构层在所述第一区处的厚度小于所述阵列结构层在所述第二区处的厚度，以使所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度。
  3. 根据权利要求2所述的显示面板，其中，所述阵列结构层包括设于所述衬底上的薄膜晶体管层、及设于所述薄膜晶体管层上的第一绝缘层，所述第一绝缘层在所述第一区处的厚度小于所述机绝缘层在所述第二区处的厚度。
  4. 根据权利要求3所述的显示面板，其中，还包括设于所述阵列结构层与所述像素电极之间的色阻层，所述显示面板至少包括显示第一颜色的第一颜色子像素区和显示第二颜色的第二颜色子像素区，所述第一颜色子像素区内和所述第二颜色子像素区内分别对应设有一所述像素电极，所述第一颜色的波长大于所述第二颜色的波长；
    所述第一绝缘层在所述第一颜色子像素区处的折射率大于所述第一绝缘层在所述第二颜色子像素区处的折射率；和/或
    所述液晶层在所述第一颜色子像素区处的平均液晶厚度大于所述液晶层在所述第二颜色子像素区处的平均液晶厚度。
  5. 根据权利要求4所述的显示面板，其中，所述第一绝缘层包括位于所述第一颜色子像素区内的第一有机子层和位于所述第二颜色子像素区内的第二子层，所述第一有机子层的材料的折射率大于所述第二子层的材料的折射率。
  6. 根据权利要求4所述的显示面板，其中，所述阵列结构层在所述第一 颜色子像素区处的厚度小于所述阵列结构层在所述第二颜色子像素区处的厚度，以使所述液晶层在所述第一颜色子像素区处的平均液晶厚度大于所述液晶层在所述第二颜色子像素区处的平均液晶厚度。
  7. 根据权利要求6所述的显示面板，其中，所述第一绝缘层在所述第一颜色子像素区处的厚度小于所述第一绝缘层在所述第二颜色子像素区处的厚度。
  8. 根据权利要求1所述的显示面板，其中，所述第二区包括两第二子区，所述第一区与所述像素电极中部相对应，两所述第二子区分别与所述像素电极两端部相对应，且邻接于所述第一区两侧。
  9. 根据权利要求1所述的显示面板，其中，所述第一区的面积与所述第二区的面积相等。
  10. 一种显示装置，所述显示装置包括背光模组、及位于所述背光模组上的显示面板；
    所述显示面板包括第一基板、与所述第一基板相对设置的第二基板、及位于所述第一基板与所述第二基板之间的液晶层；
    所述第一基板包括衬底、位于所述衬底上的阵列结构层、及位于所述阵列结构层上的像素电极层；
    所述像素电极层包括至少一像素电极，任一所述像素电极包括第一区和与所述第一区相邻的第二区，所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度。
  11. 根据权利要求10所述的显示装置，其中，所述阵列结构层在所述第一区处的厚度小于所述阵列结构层在所述第二区处的厚度，以使所述液晶层在所述第一区处的液晶厚度大于所述液晶层在所述第二区处的液晶厚度。
  12. 根据权利要求11所述的显示装置，其中，所述阵列结构层包括设于所述衬底上的薄膜晶体管层、及设于所述薄膜晶体管层上的第一绝缘层，所述第一绝缘层在所述第一区处的厚度小于所述机绝缘层在所述第二区处的厚度。
  13. 根据权利要求12所述的显示装置，其中，还包括设于所述阵列结构层与所述像素电极之间的色阻层，所述显示面板至少包括显示第一颜色的第一颜色子像素区和显示第二颜色的第二颜色子像素区，所述第一颜色子像素区内 和所述第二颜色子像素区内分别对应设有一所述像素电极，所述第一颜色的波长大于所述第二颜色的波长；
    所述第一绝缘层在所述第一颜色子像素区处的折射率大于所述第一绝缘层在所述第二颜色子像素区处的折射率；和/或
    所述液晶层在所述第一颜色子像素区处的平均液晶厚度大于所述液晶层在所述第二颜色子像素区处的平均液晶厚度。
  14. 根据权利要求13所述的显示装置，其中，所述第一绝缘层包括位于所述第一颜色子像素区内的第一有机子层和位于所述第二颜色子像素区内的第二子层，所述第一有机子层的材料的折射率大于所述第二子层的材料的折射率。
  15. 根据权利要求13所述的显示装置，其中，所述阵列结构层在所述第一颜色子像素区处的厚度小于所述阵列结构层在所述第二颜色子像素区处的厚度，以使所述液晶层在所述第一颜色子像素区处的平均液晶厚度大于所述液晶层在所述第二颜色子像素区处的平均液晶厚度。
  16. 根据权利要求15所述的显示装置，其中，所述第一绝缘层在所述第一颜色子像素区处的厚度小于所述第一绝缘层在所述第二颜色子像素区处的厚度。
  17. 根据权利要求10所述的显示装置，其中，所述第二区包括两第二子区，所述第一区与所述像素电极中部相对应，两所述第二子区分别与所述像素电极两端部相对应，且邻接于所述第一区两侧。
  18. 根据权利要求10所述的显示装置，其中，所述第一区的面积与所述第二区的面积相等。
PCT/CN2020/087719 2020-04-08 2020-04-29 显示面板及显示装置 WO2021203498A1 (zh)

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