WO2020187108A1 - Écran d'affichage, son procédé de fabrication et dispositif d'affichage - Google Patents

Écran d'affichage, son procédé de fabrication et dispositif d'affichage Download PDF

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Publication number
WO2020187108A1
WO2020187108A1 PCT/CN2020/078790 CN2020078790W WO2020187108A1 WO 2020187108 A1 WO2020187108 A1 WO 2020187108A1 CN 2020078790 W CN2020078790 W CN 2020078790W WO 2020187108 A1 WO2020187108 A1 WO 2020187108A1
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WIPO (PCT)
Prior art keywords
display substrate
display
substrate
display panel
film layer
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PCT/CN2020/078790
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English (en)
Chinese (zh)
Inventor
张瑞辰
冯博
占红明
王凯旋
刘浩
王菲菲
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Publication of WO2020187108A1 publication Critical patent/WO2020187108A1/fr

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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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells

Definitions

  • the embodiments of the present disclosure relate to a display panel, a manufacturing method thereof, and a display device.
  • Liquid crystal display is a common display.
  • the liquid crystal display includes a liquid crystal panel and polarizers located on both sides of the liquid crystal panel.
  • the liquid crystal panel includes a liquid crystal and a circuit for controlling an electric field.
  • Liquid crystal is a kind of organic compound between solid and liquid. Under the action of an electric field, the arrangement of the liquid crystal molecules changes, which results in a change in the intensity of the incident light beam after passing through the liquid crystal. This change in intensity is further manifested as a change in brightness through the action of the polarizer. Therefore, by controlling the electric field, the brightness of the light can be changed to realize the information display.
  • the liquid crystal display also includes a backlight source, whose function is mainly to provide a uniform backlight for the liquid crystal panel.
  • an embodiment of the present disclosure discloses a display panel, which includes a first display panel and a second display panel, and also includes a polarizing film layer;
  • the first display panel includes a first display substrate and a The second display substrate;
  • the second display panel includes a second display substrate, and a third display substrate disposed opposite to the second display substrate, the second display substrate is located between the first display substrate and the first display substrate Between the three display substrates;
  • the polarizing film layer is arranged on the side of the second display substrate close to the first display substrate, or arranged on the side of the second display substrate close to the third display substrate.
  • the first display substrate includes a plurality of first pixel patterns that are opaque and arranged in an array
  • the third display substrate includes a plurality of second pixel patterns that are opaque and are arranged in an array; In the direction of a display substrate, the first pixel pattern completely covers the second pixel pattern.
  • the center of each of the first pixel patterns and the center of the second pixel patterns at the corresponding position are located on the same straight line.
  • a side of the first display substrate close to the second display substrate is provided with a plurality of black matrix patterns arranged in an array
  • a side of the third display substrate close to the second display substrate is provided with an array of black matrix patterns.
  • a plurality of metal traces; the first pixel pattern is the black matrix pattern, and the second pixel pattern is the metal trace.
  • the display panel includes only one black matrix layer, and the black matrix layer is located on a side of the second display substrate away from the third display substrate.
  • the ratio of the resolution of the first display panel to the resolution of the second display panel is an integer.
  • the display panel further includes a first polarizer and a second polarizer; the first polarizer is disposed on a side of the first display substrate away from the second display substrate, and the second polarizer is disposed On the side of the third display substrate away from the second display substrate.
  • the first display substrate is a color filter substrate.
  • a common electrode is provided on a side of the second display substrate close to the third display substrate, and a pixel electrode is provided on a side of the third display substrate close to the second display substrate.
  • the common electrode is located between the polarizing film layer and the third display substrate.
  • an embodiment of the present disclosure discloses a display device including: the display panel described in the first aspect.
  • an embodiment of the present disclosure discloses a method for manufacturing a display panel, which includes: manufacturing a first display substrate, a second display substrate, and a polarizing film layer, the polarizing film layer being manufactured on the second display
  • the substrate is close to the side of the first display substrate, or fabricated on the side of the second display substrate away from the first display substrate; the first display substrate and the second display substrate are arranged in a box , And make a third display substrate; set the third display substrate and the second display substrate in a box.
  • the fabricating the polarizing film layer includes: fabricating the polarizing film layer on the side of the second display substrate close to the first display substrate by nanoimprinting; or, fabricating the polarizing film on the first display substrate by nanoimprinting.
  • a polarizing film layer is made on the side of the second display substrate away from the first display substrate.
  • embodiments of the present disclosure provide a method for manufacturing a display panel, which includes: manufacturing a first display substrate mother board, a second display substrate mother board, and a third display substrate mother board; A polarizing material layer is formed on the motherboard; an alignment operation is performed to align the first display substrate motherboard with the second display substrate motherboard, and align the second display substrate motherboard with the third display substrate motherboard.
  • the display panel includes a first display panel, a second display panel, and a polarizing film layer arranged in a stack;
  • the first display panel includes a first display substrate and a second display Substrate;
  • the second display panel includes the second display substrate and the third display substrate arranged oppositely;
  • the second display substrate is located between the first display substrate and the third display substrate;
  • the polarized light The film layer is disposed on the side of the second display substrate close to the first display substrate, or the polarizing film layer is disposed on the side of the second display substrate close to the third display substrate.
  • FIG. 1 is a schematic structural diagram of a display panel of an embodiment of the disclosure
  • FIG. 2 is a schematic structural diagram of a display panel having a first pixel pattern and a second pixel pattern according to an embodiment of the disclosure
  • FIG. 3 is a schematic structural diagram of a display panel according to an embodiment of the disclosure.
  • FIG. 4 is a flowchart of a manufacturing method of a display panel according to an embodiment of the disclosure.
  • FIG. 5 is a flowchart of a manufacturing method of a display panel according to an embodiment of the disclosure.
  • a display panel with a double-layer liquid crystal cell known by the inventor of the present application includes four display substrates and three polarizers.
  • the four display substrates include a first display substrate, a second display substrate, a third display substrate, and a second display substrate.
  • the three polarizers include a first polarizer, a second polarizer and a third polarizer.
  • the first display substrate and the second display substrate are arranged opposite to each other with a liquid crystal layer arranged between the two to form a first liquid crystal cell, and the third display substrate and the fourth display substrate are arranged opposite to each other and another liquid crystal layer is arranged between the two.
  • a second liquid crystal cell is formed.
  • the first liquid crystal cell and the second liquid crystal cell are pasted together by optical glue.
  • a first polarizer is provided on the top of the first display substrate, a second polarizer is provided between the second display substrate and the third display substrate, and a third polarizer is provided on the bottom of the fourth display substrate.
  • the inventor of the present application found that the above-mentioned display panel with double-layer liquid crystal cells is prone to produce moire, and it is necessary to use an anti-moire directional diffusion sheet.
  • Moiré refers to the high-frequency interference fringes that appear in the photosensitive element of the display screen.
  • the moiré is a kind of high-frequency irregular fringes that make the picture appear colorful, which makes the final image produced false colors abnormal.
  • the inventor of the present application found that due to the deviation in the manufacturing process of the above-mentioned display panel with double-layer liquid crystal cells, the pixel pattern of the lower liquid crystal cell cannot be aligned with the pixel pattern of the upper liquid crystal cell, so it is easy to produce moiré, which directly affects the display. The display effect of the panel.
  • embodiments of the present application provide a display panel with a double-layer liquid crystal cell, a manufacturing method thereof, and a display device.
  • FIGS. 1 to 3 show schematic structural diagrams of display panels provided by embodiments of the present disclosure.
  • the display panel includes a first display panel A and a second display panel B that are stacked, and also includes a polarizing film layer 4.
  • the first display panel A includes a first display substrate 1 and a second display substrate 2 arranged opposite to each other.
  • the second display panel B includes a second display substrate 2 and a third display substrate 3 disposed opposite to the second display substrate 2.
  • the second display substrate 2 is located between the first display substrate 1 and the third display substrate 3.
  • the polarizing film layer 4 is arranged on the side of the second display substrate 2 close to the first display substrate 1 (the polarizing film layer 4 is located between the second display substrate 2 and the first display substrate 1 at this time), or is arranged on the second display substrate 2.
  • the side of the substrate 2 close to the third display substrate 3 (the polarizing film layer 4 is located between the second display substrate 2 and the third display substrate 3 at this time).
  • the first component is located on the side of the second component close to the third component, which means that the first component is located on the side of the second component facing the third component.
  • the first part is located between the second part and the third part.
  • the polarizing film layer 4 is arranged on the side of the second display substrate 2 close to the third display substrate 3 to facilitate the formation of a relatively flat surface. Good polarizing film layer 4.
  • the display substrate in the display panel provided by the embodiment of the present disclosure only includes the first display substrate 1, the second display substrate 2, the third display substrate 3, and the polarizing structure between the first display substrate 1 and the third display substrate 3 only includes The polarizing film layer 4, the first display substrate 1 and the second display substrate 2 form a first display panel A, and the second display substrate 2 and the third display substrate 3 form a second display panel B. Therefore, the first display panel A and the second display panel B share one second display substrate 2 and share one polarizing film layer 4.
  • the embodiments of the present disclosure are beneficial to improve the alignment accuracy between the pixel patterns of the first display panel A and the second display panel B Therefore, it is beneficial to reduce the occurrence of moiré; moreover, the embodiment of the present disclosure can omit the anti-moire diffusion sheet, which reduces the thickness of the display panel and reduces the manufacturing cost.
  • the embodiments of the present disclosure reduce one display substrate and one polarizer and reduce the number of liquid crystal cells used for pasting. Therefore, after mass production of the display panel provided by the embodiments of the present disclosure, not only can the overall thickness of the display panel be greatly reduced to meet the design requirements of flat display panels, but also the manufacturing cost can be reduced , Improve market competitiveness.
  • the polarizing film layer 4 itself directly contacts the second display substrate 2 instead of being pasted on the second display substrate 2 by glue.
  • the polarizing film layer 4 is disposed on the second display substrate 2 by nanoimprinting (at this time, the polarizing film layer 4 itself directly contacts the second display substrate 2) instead of being disposed on the second display substrate 2 by pasting. (At this time, the polarizing film layer 4 is connected to the second display substrate 2 through glue). This is because the pasting method will cause the polarizing film layer 4 to fail in the subsequent manufacturing process.
  • the polarizing film layer 4 is made of organic materials, so that the polarizing film layer 4 can have better light transmission performance.
  • both the first display panel A and the second display panel B are liquid crystal display panels.
  • the first display panel A further includes a first liquid crystal located between the first display substrate 1 and the second display substrate 2.
  • Layer see LC1 in FIG. 3
  • the second display panel B also includes a second liquid crystal layer (LC2) located between the third display substrate 3 and the second display substrate 2.
  • the first display panel A is used as the main display panel
  • the second display panel B is used as a light-controlling black and white panel (in this case, the second display panel B does not include a color film layer (also called a color filter layer))
  • the contrast ratio can be greatly improved; moreover, by making the display panel only include a color filter layer, the thickness of the display panel can be further reduced.
  • FIGS. 2 and 3 show schematic diagrams of a display panel having a first pixel pattern and a second pixel pattern according to at least one embodiment of the present disclosure.
  • the first display substrate 1 includes a plurality of first pixel patterns 9 opaque and arranged in an array
  • the third display substrate 3 includes a plurality of second pixels opaque and arranged in an array.
  • Pattern 10 (only one second pixel pattern 10 is shown in FIG. 2 for illustration).
  • each second pixel pattern 10 overlaps a first pixel pattern 9 in a direction perpendicular to the first display substrate 1 (that is, the orthographic projections of the two overlap on the first display substrate 1).
  • the first pixel pattern 9 completely covers the second pixel pattern 10 (that is, the entire orthographic projection of the second pixel pattern 10 on the first display substrate 1 is located where the first pixel pattern 9 is). Within the area), this setting can well avoid the generation of moiré.
  • the first pixel pattern 9 and the second pixel pattern 10 correspond one-to-one.
  • the multiple components are arranged in an array means that the multiple components are arranged in at least one row and multiple columns or arranged in at least one column and multiple rows.
  • the multiple parts are arranged in multiple rows and multiple columns.
  • each first pixel pattern 9 is at the corresponding position of the second pixel pattern 10 (the second pixel pattern 10 overlaps the first pixel pattern 9).
  • the centers are located on the same straight line, so that the first pixel pattern 9 can completely cover the second pixel pattern 10, so as to avoid the occurrence of moiré.
  • a side of the first display substrate 1 close to the second display substrate 2 is provided with a plurality of black matrix patterns arranged in an array.
  • a side of the third display substrate 3 close to the second display substrate 2 is provided with a plurality of metal traces arranged in an array.
  • the first pixel pattern 9 may belong to a blocking layer
  • the second pixel pattern 10 may belong to a metal layer.
  • the first pixel pattern 9 can be used as the above-mentioned black matrix pattern.
  • the second pixel pattern 10 may be used as a metal wiring.
  • the black matrix pattern completely covers the metal wiring, which effectively avoids the generation of moiré.
  • the plurality of metal traces included in the third display substrate 3 include a plurality of gate lines and a plurality of data lines, and the gate lines and the data lines cross each other to form a plurality of sub-pixels arranged in an array.
  • the second display substrate 2 also includes a plurality of gate lines and a plurality of data lines, and the gate lines and the data lines cross each other to form a plurality of sub-pixels arranged in an array.
  • the orthographic projection of the gate lines included in the third display substrate 3 on the second display substrate 2 is located in the area where the gate lines included in the second display substrate 2 are located, and the data lines included in the third display substrate 3 are on the second display substrate 2.
  • the orthographic projection on the upper surface is located in the area where the data lines included in the second display substrate 2 are located, and the gate lines and data lines included in the second display substrate 2 and the third display substrate 3 are both blocked by the first pixel pattern 9.
  • both the second display substrate 2 and the third display substrate 3 include a plurality of switching elements (such as thin film transistors) arranged in an array, and the first pixel pattern 9 also shields the switching elements, that is, the switching elements 9 are on the first display substrate 1.
  • the orthographic projection of is located in the area where the first pixel pattern 9 is located.
  • the display panel provided by at least one embodiment of the present disclosure only includes a black matrix layer BM for shielding light, and the black matrix layer BM is located on the second display substrate 2 away from the third display substrate. 3 side. That is, the first display panel A of the display panel includes the black matrix layer BM, but the second display panel B does not include the black matrix layer for shielding light.
  • the display panel provided by the embodiment of the present disclosure omits one black matrix layer, thereby further reducing the thickness of the display panel and increasing the opening of the display panel rate.
  • the first display substrate 1 of at least one embodiment of the present disclosure is a color filter substrate, which includes a base substrate (for example, a transparent substrate such as a glass substrate, a plastic substrate, or a quartz substrate) 6 and A plurality of color filter layers disposed on the side of the base substrate 6 close to the second display substrate 2, the plurality of color filter layers include, for example, a red color filter layer 61, a green color filter layer 62 and a blue color filter layer 63.
  • adjacent color film layers are in direct contact.
  • adjacent color filter layers are separated by the first pixel pattern 9.
  • the arrangement order and position of the red color film layer 61, the green color film layer 62, and the blue color film layer 63 can be changed and adjusted accordingly according to specific design requirements.
  • the ratio of the resolution of the first display panel A to the resolution of the second display panel B is an integer.
  • the resolution of the first display panel A is X ⁇ Y
  • the resolution of the second display panel B is (X/n) ⁇ (Y/n)
  • n is an integer.
  • the width of the first pixel pattern 9 of the first display panel A is greater than the width of the second pixel pattern 10 of the second display panel B, and
  • the pixel pattern 9 and the second pixel pattern 10 are aligned up and down, so that the first pixel pattern 9 can cover the second pixel pattern 10, and the ratio of the resolution of the first display panel A to the resolution of the second display panel B is Integers are easier to implement in image algorithm processing, and further facilitate the alignment between the first display panel A and the second display panel B to further reduce moiré.
  • the display panel provided by at least one embodiment of the present disclosure further includes a plurality of array support pillars 7, and two adjacent array support pillars 7 are arranged at a predetermined distance. They are arranged at intervals, and are located between the first display substrate 1 and the second display substrate 2 and between the second display substrate 2 and the third display substrate 3, and are used to maintain the first display substrate 1 and the second display substrate 2 The cell thickness between the second display substrate 2 and the third display substrate 3 is maintained. That is, each array support column 7 includes a first part located between the first display substrate 1 and the second display substrate 2 and a second part located between the second display substrate 2 and the third display substrate 3.
  • One part is used to maintain the cell thickness between the first display substrate 1 and the second display substrate 2, and the second part is used to maintain the cell thickness between the second display substrate 2 and the third display substrate 3.
  • the orthographic projections of the first part and the second part on the first display substrate 1 overlap, which is further conducive to reducing moiré.
  • the array support column 7 can support the formation of a first display panel between the first display substrate 1 and the second display substrate 2 while supporting the second display substrate 2 and the third display substrate 2.
  • a second display panel is formed between the substrates 3 to meet the design requirements of a double-layer liquid crystal cell display panel.
  • each array support column 7 is located at a position where adjacent color filter layers directly contact; or, as shown in FIGS. 2 and 3, each array support column 7 is located at an adjacent color filter layer. Between the layers, and each array support pillar 7 overlaps the first pixel pattern 9. For example, as shown in FIGS. 2 and 3, the orthographic projection of the array support column 7 on the first display substrate 1 is located in the area where the first pixel pattern 9 is located. By shielding the periodically arranged array support pillars 7 with the first pixel pattern 9, it is further beneficial to reduce moiré.
  • the display panel provided by at least one embodiment of the present disclosure further includes: a first polarizer 5 and a second polarizer 8.
  • the first polarizer 5 is disposed on the side of the first display substrate 1 away from the second display substrate 2, that is, the first polarizer 5 is located on the top of the first display substrate 1 (in this case, the first display substrate 1 Located between the first polarizer 5 and the second display substrate 2).
  • the second polarizer 8 is provided on the side of the third display substrate 3 away from the second display substrate 2, that is, the second polarizer 8 is located at the bottom of the third display substrate 3 (in this case, the third display substrate 3 Located between the second polarizer 8 and the second display substrate 2).
  • the first polarizer 5 is disposed on the first display substrate 1 by pasting, and at this time, the first polarizer 5 is connected to the first display substrate 1 by glue.
  • the second polarizer 8 is disposed on the third display substrate 3 by pasting, and at this time, the second polarizer 8 is connected to the third display substrate 3 by glue.
  • the side of the second display substrate 2 close to the third display substrate 3 is provided with a common electrode CE (that is, the second display substrate 2 includes a base substrate 20 and a common electrode CE, and the common electrode CE is located on the substrate.
  • a side of the third display substrate 3 close to the second display substrate 2 is provided with a pixel electrode PE (that is, the third display substrate 3 includes a base substrate 30 and a pixel electrode PE, And the pixel electrode PE is located between the base substrate 30 and the second display substrate 2), for example, the pixel electrode PE overlaps the corresponding color filter layer, and the second pixel pattern 10 is located between adjacent pixel electrodes PE.
  • TN Twisted Nematic
  • the common electrode CE is located between the polarizing film layer 4 and the third display substrate 3, which is beneficial to enhance the electric field between the common electrode CE and the pixel electrode PE, thereby helping to improve the second display panel B The transmittance.
  • the second display panel B may have an in-plane switching (Fringe Field Switching; FFS) structure, that is, the third display substrate 3 includes a common electrode and a pixel electrode.
  • FFS Fringe Field Switching
  • the third display substrate 3 further includes a plurality of switching elements arranged in an array, the switching elements are electrically connected to the pixel electrodes, and the black matrix layer BM shields the switching elements and the gate lines and data lines electrically connected to the switching elements to reduce moiré.
  • the first display panel A may have an in-plane switching structure, that is, the second display substrate 2 of the first display panel A includes a pixel electrode and a common electrode, and the pixel electrode and the common electrode are located in the second display panel.
  • the first display panel A adopts an in-plane switch structure, which is beneficial to improve the viewing angle performance of the display panel.
  • a display device which includes: the display panel of the first aspect.
  • the beneficial effects brought by the display device in the second aspect are the same as the beneficial effects of the display panel in the first aspect, and will not be repeated here.
  • an embodiment of the present disclosure provides a manufacturing method of a display panel.
  • the manufacturing method includes the following steps S101 to S103.
  • S101 Fabricate a first display substrate, a second display substrate, and a polarizing film layer.
  • the polarizing film layer is fabricated on the side of the second display substrate close to the first display substrate, or fabricated on a side of the second display substrate away from the first display substrate. side.
  • S102 arranging the first display substrate and the second display substrate in a box. That is, the alignment operation is performed on the first display substrate and the second display substrate, so that the color filter layers included in the first display substrate respectively correspond to the plurality of sub-pixels included in the second display substrate.
  • S103 Fabricate a third display substrate, and set the third display substrate and the second display substrate in a box. That is, the alignment operation is performed on the third display substrate and the second display substrate, so that the orthographic projection of the second pixel pattern in the third display substrate on the first display substrate is located in the area where the first pixel pattern is located.
  • the display panel of the embodiment of the present disclosure since the display panel of the embodiment of the present disclosure only includes the first display substrate, the second display substrate, and the third display substrate, and the first display substrate and the second display substrate
  • the polarizing structure between the three display substrates is only a polarizing film layer, which is beneficial to reduce moiré; on the other hand, because one display substrate and one polarizer are reduced, and the optical adhesive layer and anti-moiré directional diffuser are reduced Therefore, the embodiments of the present disclosure greatly reduce the overall thickness of the display panel, and meet the design requirements of a flat display panel.
  • first display substrate, the second display substrate, and the third display substrate are manufactured separately, and these three display substrates may be manufactured at the same time or at different times.
  • a polarizing film layer is fabricated on the second display substrate, and then the alignment between each of the first display substrate and the third display substrate and the second display substrate on which the polarizing film layer is formed is performed. Bit.
  • the preparation of the polarizing film layer in the above S101 includes: using nano-imprinting to prepare the polarizing film on the side of the second display substrate close to the first display substrate; or, using nano-imprinting to prepare the polarizing film on the second display substrate.
  • a polarizing film layer is made on the side away from the first display substrate.
  • the manufacturing method of the display panel provided by at least one embodiment of the present disclosure includes the following steps.
  • the first display substrate and the second display substrate are manufactured according to the normal process flow, and then the first polarizer 5 is attached to the side of the first display substrate away from the second display substrate.
  • the polarizing film layer 4 is fabricated by nanoimprinting, as shown in FIGS. 1 to 3.
  • the polarizing film layer 4 can also be manufactured on the side of the second display substrate close to the first display substrate by nanoimprinting.
  • only the polarizing film layer 4 is manufactured on the second display substrate.
  • the side of the substrate away from the first display substrate is taken as an example.
  • the first display substrate and the second display substrate that have completed the above steps are aligned to form a first display panel.
  • the first display panel in the embodiment of the present disclosure may be an FFS type display panel.
  • a third display substrate is fabricated, and a second polarizer 8 is attached to the side of the third display substrate away from the second display substrate.
  • the resolution of the third display substrate is the same as the resolution of the first display panel, or the resolution of the first display panel is an integer ratio to the resolution of the third display substrate.
  • the third display substrate and the second display substrate are aligned to form a second display panel.
  • a common electrode is made on the side of the second display substrate close to the third display substrate, and a pixel electrode is made on the side of the third display substrate close to the second display substrate, so that the second The display panel is a TN type display panel.
  • the second display panel in at least one embodiment of the present disclosure is used as a black-and-white display structure that realizes light control. Therefore, no color film layer is formed on the second display substrate and the third display substrate.
  • the manufacturing method of the display panel before aligning the two display substrates to the cell, the manufacturing method of the display panel further includes the step of dripping liquid crystal on one of the display substrates; after the cell aligning operation is completed, the manufacturing method of the display panel also includes forming In the step of connecting the frame sealant of adjacent display substrates.
  • an embodiment of the present disclosure provides a manufacturing method of a display panel.
  • the manufacturing method includes the following steps: manufacturing a first display substrate mother board, a second display The substrate mother board, the third display substrate mother board; the polarizing material layer is formed on the second display substrate mother board; the alignment operation is performed to align the first display substrate mother board with the second display substrate mother board, and The second display substrate motherboard is aligned with the third display substrate motherboard; after the alignment operation is completed, the first display substrate motherboard, the second display substrate motherboard and the third display substrate motherboard are cut to obtain the display panel .
  • the first display substrate mother board is cut into a plurality of first display substrates
  • the second display substrate mother board is cut into a plurality of second display substrates
  • the third display substrate mother board is cut into a plurality of second display substrates.
  • the polarizing material layer is cut into multiple polarizing film layers.
  • the display panel obtained by the manufacturing method includes a first display panel, a second display panel, and a polarizing film layer that are stacked;
  • the first display panel includes a first display substrate and a second display substrate that are opposed to each other;
  • the second display The panel includes a second display substrate and a third display substrate arranged oppositely;
  • the second display substrate is located between the first display substrate and the third display substrate;
  • the polarizing film layer is arranged on the side of the second display substrate close to the first display substrate Or the polarizing film layer is arranged on the side of the second display substrate close to the third display substrate.
  • the manufacturing sequence of the first display substrate to the third display substrate is not limited.
  • the manufacturing method of the display panel further includes the step of dripping liquid crystal on one of the display substrates; after the cutting operation is completed, the manufacturing method of the display panel further includes The step of connecting the frame sealant of adjacent display substrates.
  • the components with the same name can be arranged in the same manner, and the repetition will not be repeated.
  • the beneficial effects obtained by the embodiments of the present disclosure include the following aspects.
  • the display panel of the embodiments of the present disclosure only includes a first display substrate, a second display substrate, and a third display substrate.
  • the polarizing structure between the first display substrate and the third display substrate only includes a polarizing film layer, and the first display substrate ,
  • the second display substrate forms a first display panel, and the second display substrate and the third display substrate form a second display panel. Therefore, the first display panel and the second display panel share a second display substrate and a polarizing film layer.
  • the embodiments of the present disclosure are beneficial to reduce moiré; moreover, the embodiments of the present disclosure reduce one display substrate and one polarizer, and reduce one optical adhesive layer and one Moiré-resistant directional diffuser, therefore, after mass production of the display panel of the embodiment of the present disclosure, not only can the overall thickness of the display panel be greatly reduced, meet the design requirements of flat display panels, but also can reduce manufacturing costs and increase Market Competitiveness.
  • the first pixel pattern completely covers the second pixel pattern, especially the center of each first pixel pattern and the center of the second pixel pattern at the corresponding position are on the same line to facilitate The first pixel pattern completely covers the second display pattern, which is beneficial to avoid the generation of moiré.
  • the side of the second display substrate close to the third display substrate is provided with a common electrode, and the side of the third display substrate close to the second display substrate is provided with a pixel electrode, so that the second display panel has a twisted-face column structure, which makes The transmittance of the display panel is higher and the manufacturing process is simpler.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un écran d'affichage, son procédé de fabrication et un dispositif d'affichage. L'écran d'affichage comprend un premier écran d'affichage (A) et un second écran d'affichage (B), et comprend en outre une couche de film polarisant (4). Le premier écran d'affichage (A) comprend un premier substrat d'affichage (1) et un deuxième substrat d'affichage (2) disposé à l'opposé du premier substrat d'affichage (1). Le second écran d'affichage (B) comprend un deuxième substrat d'affichage (2) et un troisième substrat d'affichage (3) disposé à l'opposé du second substrat d'affichage (2). Le deuxième substrat d'affichage (2) est situé entre le premier substrat d'affichage (1) et le troisième substrat d'affichage (3). La couche de film polarisant (4) est disposée sur un côté du second substrat d'affichage (2) plus proche du premier substrat d'affichage (1), ou sur un côté du second substrat d'affichage (2) plus proche du troisième substrat d'affichage (3). L'écran d'affichage peut aider à réduire l'apparition de motifs de moiré.
PCT/CN2020/078790 2019-03-19 2020-03-11 Écran d'affichage, son procédé de fabrication et dispositif d'affichage WO2020187108A1 (fr)

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CN201910209845.4A CN109870859A (zh) 2019-03-19 2019-03-19 一种显示面板及其制造方法、显示装置

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CN110471213A (zh) * 2019-09-11 2019-11-19 京东方科技集团股份有限公司 显示基板、显示面板及其制造方法、显示装置
US11874552B2 (en) 2019-11-29 2024-01-16 Boe Technology Group Co., Ltd. Display device and manufacturing method thereof
WO2021114176A1 (fr) * 2019-12-12 2021-06-17 京东方科技集团股份有限公司 Panneau d'affichage et procédé de fabrication associé, et dispositif d'affichage
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CN111933043B (zh) * 2020-08-19 2022-06-17 京东方科技集团股份有限公司 一种显示装置

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