WO2018157725A1 - 显示面板以及显示设备 - Google Patents

显示面板以及显示设备 Download PDF

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Publication number
WO2018157725A1
WO2018157725A1 PCT/CN2018/076015 CN2018076015W WO2018157725A1 WO 2018157725 A1 WO2018157725 A1 WO 2018157725A1 CN 2018076015 W CN2018076015 W CN 2018076015W WO 2018157725 A1 WO2018157725 A1 WO 2018157725A1
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WO
WIPO (PCT)
Prior art keywords
display panel
recessed structure
display
film layer
liquid crystal
Prior art date
Application number
PCT/CN2018/076015
Other languages
English (en)
French (fr)
Inventor
王景余
朴正淏
Original Assignee
京东方科技集团股份有限公司
重庆京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 京东方科技集团股份有限公司, 重庆京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/092,311 priority Critical patent/US10649268B2/en
Publication of WO2018157725A1 publication Critical patent/WO2018157725A1/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
    • 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
    • G02F1/133345—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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/1341—Filling or closing of cells
    • 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
    • G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region

Definitions

  • the present disclosure relates to the field of display, and more particularly to display panels and display devices.
  • a liquid crystal display due to its low power consumption, high image quality, small size and light weight, has been favored by everyone and has become the mainstream of current displays.
  • a liquid crystal display is mainly a thin film transistor (TFT) liquid crystal display panel, and generally includes a oppositely disposed opposite substrate, a TFT array substrate, and a liquid crystal layer disposed between the two substrates.
  • TFT thin film transistor
  • liquid crystal In the process of preparing a liquid crystal display panel, when liquid crystal is injected into a relative space between the opposite substrate and the array substrate, a drop of liquid crystal is usually dropped on the surface of the substrate, and then the opposite substrate and the array substrate are pressed. In combination, the liquid crystal fills the area inside the sealant by diffusion. However, since the viscosity of the liquid crystal is large, the diffusion space is small, and the capillary phenomenon is severe, so that liquid crystal diffusion does not occur at the four corners of the liquid crystal display panel, which adversely affects the display of the liquid crystal display panel.
  • liquid crystal layer disposed between the opposite substrate and the array substrate
  • a recessed structure disposed on a side of the opposite substrate and the array substrate facing the liquid crystal layer;
  • the display panel has a display area, a non-visible area surrounding the display area, and a sealant area surrounding the non-visible area; wherein the recessed structure is disposed at a corner of the non-visible area .
  • the display panel further includes: at least one of the opposite substrate and the array substrate facing the liquid crystal layer The target film layer on one side;
  • the target film layer has the recessed structure; and a thickness of the target film layer in a region where the recessed structure is located is smaller than a thickness of the target film layer in other regions.
  • the open end of the recessed structure covers the bottom end of the recessed structure at the bottom end of the display panel on the display panel Orthographic projection.
  • the recess structure is linearly rising toward a side of the display area along a direction in which the bottom end of the recess structure points toward the open end. The manner extends to the display area.
  • the recessed structure faces the side of the display area in a stepwise manner along a direction in which the bottom end of the recess structure points toward the open end. The way to extend to the display area.
  • the recess structure penetrates the target film layer in a direction perpendicular to the display panel.
  • the target film layer disposed on the opposite substrate includes a flat layer.
  • the target film layer disposed on the array substrate includes one or a combination of a planarization layer, a passivation layer, and a gate insulating layer.
  • the display panel further includes: at least one ring wall structure disposed in the non-visible area and surrounding the display area,
  • Each of the retaining wall structures includes a plurality of mutually spaced sub-retaining walls; the recessed structure is located on a side of the retaining wall structure facing the sealant region.
  • the display panel is provided with a plurality of turns of the retaining wall structure, and adjacent two sub-retaining walls of the retaining wall structure The gap between the gaps is set opposite to the sub-retaining wall in the adjacent ring retaining wall structure.
  • the recessed structure in the above display panel provided by the embodiment of the present disclosure, is triangular, rectangular or circular in a cross-sectional pattern parallel to the display panel.
  • the present disclosure also provides a display device including the above display panel.
  • FIG. 1 is a cross-sectional view of a display panel according to an embodiment of the present disclosure
  • FIG. 2 is a schematic plan view of a display panel according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a recessed structure disposed on a target film layer of a display panel according to an embodiment of the present disclosure
  • FIG. 4 is a top plan view showing a setting of a recessed structure according to an embodiment of the present disclosure
  • FIG. 5 is an enlarged schematic view showing a recessed structure at a corner according to an embodiment of the present disclosure
  • FIG. 6 is a second enlarged schematic view showing a recessed structure at a corner according to an embodiment of the present disclosure
  • Figure 7 is a third enlarged view of the recessed structure at the corner of the embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a display panel provided with a retaining wall structure according to an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a display panel including: an opposite substrate 1 , an array substrate 2 disposed opposite to the opposite substrate 1 , disposed on the opposite substrate 1 and the array substrate The liquid crystal layer 3 between the two, and the recess structure 5 provided on the side of the liquid crystal layer 3 facing at least one of the counter substrate 1 and the array substrate 2.
  • the display panel has a display area S1, a non-visible area S2 surrounding the display area S1, and a sealant area S3 surrounding the non-visible area S2; wherein the recessed structure 5 is disposed at a corner of the non-visible area S2.
  • the general display area S1 is used for display, and the sealant area S3 is used to set the sealant 4 .
  • the display panel provided by the embodiment of the present disclosure provides a recess structure on a side of the opposite substrate and the array substrate facing the liquid crystal layer, and the recess structure is disposed at a corner of the non-visible area, so that When the substrate and the array substrate are pressed together, the diffusion space of the liquid crystal at the corner can be increased, thereby facilitating the liquid crystal to be more easily diffused to the corner of the display panel, thereby reducing the display panel due to the liquid crystal diffusing to the corner of the corner. And there is a chance of poor display.
  • the display panel in the embodiment of the present disclosure is a display panel having a corner.
  • the display area S1 of the display panel is a quadrilateral shape, and a commonly used quadrilateral as a display area can be, for example, a computer display screen, a mobile phone display screen, a flat panel display screen, and the like.
  • non-visible area S2 in the embodiment of the present disclosure, it may refer to all areas between the display area S1 and the sealant area S3, that is, for the display panel, the display area S1 is generally located in the middle of the display panel, The glued area S3 is located in the outer frame area of the display panel, and the display area S1 is not in direct contact with the sealant area S3, and the intermediate interval is a non-visible area S2.
  • the liquid crystal in order to enable the liquid crystal to sufficiently cover the display area S1, the liquid crystal is usually covered in the non-visible area S2, and the sealant 4 seals the liquid crystal covering the display area S1 and the non-visible area S2.
  • the non-visible area S2 surrounding the periphery of the display area S1 is a square frame band having a corner, and when the recessed structure 5 is disposed at a corner position of the non-visible area S2, the liquid crystal can be made When diffusing, it is easy to diffuse into the corner area, and the display panel is prevented from being defective in display of bubbles in the corner area due to insufficient diffusion of the liquid crystal.
  • the opposite substrate 1 has a first surface facing the liquid crystal layer 3 side.
  • the surface 001, the first surface 001 may refer to a surface on which the opposite substrate 1 is provided with a film layer.
  • the array substrate 2 has a second surface 002 facing the liquid crystal layer 3 side, and the second surface 002 may refer to a surface on which the array substrate 2 is provided with a film layer.
  • the recess structure 5 may be disposed at a corner position of the non-visible area S2 where the first surface 001 of the opposite substrate 1 is located.
  • the recess structure 5 may be provided at a corner position of the non-visible area S2 where the second surface 002 of the array substrate 2 is located.
  • the recess structure 5 is disposed at a corner position of the non-visible area S2 where the first surface 001 of the opposite substrate 1 and the second surface 002 of the array substrate 2 are respectively located.
  • the liquid crystal can be more easily diffused into the corner region of the display panel, and the probability that the corner region of the display panel is less likely to be displayed due to the diffusion of the liquid crystal is reduced.
  • the recessed structure may be correspondingly set according to the needs of the actual application environment, and no limitation is imposed herein.
  • the recessed structure disposed on the opposite substrate may be formed by simultaneously removing the multilayer film located at the corner of the non-visible area in the opposite substrate, or may be located at the corner of the non-visible area in the opposite substrate. A certain film layer is removed to form.
  • the display panel may further include: a target film layer disposed on a side of the opposite substrate 1 facing the liquid crystal layer 3, the target film layer having the recess structure 5; and the target film layer being in the recess structure 5 The thickness of the area is smaller than the thickness of the target film layer in other areas.
  • the first film layer 10 represents the target film layer disposed on the side of the counter substrate 1 facing the liquid crystal layer 3, that is, the first film layer 10 is disposed on the side of the counter substrate 1 facing the liquid crystal layer 3, so that The recessed structure is formed by making the thickness of the first film layer 10 at the corner position of the non-visible area S2 smaller than the thickness of the other areas.
  • the first film layer 10 may be an outermost film layer disposed on a side of the opposite substrate 1 facing the liquid crystal layer 3, that is, the first film layer 10 is disposed on the opposite substrate 1 and closest to the liquid crystal layer. 3 film layer.
  • the first film layer 10 may also be one or more film layers disposed on the side of the opposite substrate 1 facing the liquid crystal layer 3, that is, by passing the film layer in the non-visible area S2.
  • the thinning treatment is performed at the corner position, so that when other film layers are sequentially disposed on the film layer, since the thickness of the same film layer is generally the same, the recess structure 5 can be finally formed at the corner position of the non-visible area.
  • the flat layer on the opposite substrate 1 can be removed at the corner position of the non-visible area S2.
  • an alignment film layer (not shown) is further disposed on a side of the flat layer facing the liquid crystal layer, but since the flat layer on the opposite substrate is generally thick and the alignment film layer is thin, the alignment film is The thickness of the layer is negligible. Therefore, when the flat layer is removed at a corner position of the non-visible area to form a recessed structure, a recess structure having a relatively deep depth can be formed, which is advantageous for making it easier for the liquid crystal to diffuse to the corner region.
  • the multilayer film in the array substrate at the corner of the non-visible area may be simultaneously removed to form, or may be a film in the array substrate located at the corner of the non-visible area.
  • the layers are removed to form.
  • the display panel may further include: a target film layer disposed on a side of the array substrate 2 facing the liquid crystal layer 3; and, the target film layer has a recess structure 5; and the target film layer is in the recess
  • the thickness of the region where the structure 5 is located is smaller than the thickness of the target film layer in other regions.
  • the second film layer 20 represents the target film layer disposed on the side of the array substrate 2 facing the liquid crystal layer 3, that is, the side of the array substrate 2 facing the liquid crystal layer 3 is provided with the second film layer 20, so that The thickness of the second film layer 20 at the corner position of the non-visible area S2 is smaller than the thickness of the other areas to form a recessed structure.
  • the second film layer 20 may be an outermost film layer disposed on a side of the array substrate 2 facing the liquid crystal layer 3, that is, the second film layer 20 is disposed on the array substrate 2 closest to the liquid crystal layer 3. Membrane layer.
  • the second film layer 20 may also be one or more film layers disposed on the side of the array substrate 2 facing the liquid crystal layer 3, that is, by passing the film layer at the corner of the non-visible area S2.
  • the recess structure 5 can be finally formed at the corner position of the non-visible area.
  • one of the flat layer, the passivation layer, the gate insulating layer on the array substrate 2 or a film combined at a corner position of the non-visible area S2 may be removed.
  • an alignment film layer (not shown) is further disposed on a side of the flat layer facing the liquid crystal layer, but since the flat layer or the passivation layer on the array substrate is generally thick, and the alignment film layer is thin, Then the thickness of the alignment film layer is negligible. Therefore, when the flat layer or the passivation layer is removed at a corner position of the non-visible area to form a recessed structure, a recess structure having a relatively deep depth can be formed, which is advantageous for making the liquid crystal more easily diffused to the corner region.
  • the color film layer for realizing the color display may be disposed on the opposite substrate or may be disposed on the array substrate, which is not limited herein.
  • the recessed structure 5 may be disposed in the middle of the corner position of the non-visible area S2.
  • each inner side surface of the recessed structure 5 may be constituted by a side wall of the target film layer.
  • the recessed structure 5 can also be disposed at the edge region of the corner position of the non-visible area S2.
  • the recessed structure 5 is composed of the side wall of the target film layer and the sealant.
  • the specific configuration of the recessed structure can be flexibly set in the specific implementation, and the disclosure is not limited herein.
  • FIG. 5 and FIG. 5 is an enlarged schematic view of the display panel at a corner position
  • FIG. 6 is an enlarged schematic view of the display panel at a corner position, so that the open end of the recessed structure 5 can be displayed on the bottom end of the orthographic projection of the display panel covering the recessed structure 5 The orthographic projection of the panel.
  • This makes it possible to make the area of the open end larger than the area of the bottom end of the recessed structure, thereby facilitating the diffusion of the liquid crystal.
  • the liquid crystal may be caused to flow along the inner side surface having the first slope.
  • the recess structure 5 may be faced to the display area S1.
  • One side extends toward the display area S1 in a linearly rising manner.
  • the recessed structure 5 disposed on the opposite substrate 1 can be used as an example, and the inner side surface of the recessed structure 5 on the opposite substrate 1 can be made flat, and the plane can be at a predetermined tilt angle with the first surface 001.
  • the bottom end of the recessed structure 5 extends toward the open end thereof.
  • the recess structure 5 disposed on the array substrate 2 can also be implemented as described above, and will not be described herein.
  • the side of the recessed structure 5 facing the display area S1 may be extended toward the display area S1 in a stepwise manner.
  • the recessed structure 5 disposed on the opposite substrate 1 can be used as an example.
  • the inner side surface of the recessed structure 5 can be formed in a stepped shape, and the bottom end of the recessed structure extends toward the open end thereof.
  • the recess structure 5 disposed on the array substrate 2 can also be implemented as described above, and will not be described herein.
  • the recess structure 5 may penetrate the target film layer in a direction perpendicular to the display panel.
  • the recess structure 5 may be a via.
  • the recess structure 5 disposed on the array substrate 2 can also be implemented by referring to the above method, and details are not described herein.
  • the recessed structure 5 may be in a cross-sectional pattern parallel to the display panel, that is, in a section parallel to the first surface.
  • the graphic is a triangle.
  • the shape of the recessed structure may also be a quadrangular pyramid shape, and then it is rectangular in a cross-sectional shape parallel to the first surface.
  • Fig. 8 is only two turns of the retaining wall structure
  • the non-visible area S2 of the display panel is further provided with at least one ring retaining wall structure 6 surrounding the display area, and each ring retaining wall structure 6 includes a plurality of mutually spaced sub-retaining walls 61, wherein the recessed structure 5 is located on the side of the retaining wall structure 6 facing the sealing frame rubber zone S3.
  • the structure of the retaining wall may be one turn, two turns, three turns, etc., and the specific number of turns needs to be determined according to the actual application environment, which is not limited herein.
  • the display panel in order to further prevent the liquid crystal from prematurely diffusing into the sealant region S3 and the sealant, as shown in FIG. 8, the display panel is provided with a multi-turn retaining wall structure 6 in the non-visible area S2, each turn The gap between the adjacent two sub-retaining walls 61 in the retaining wall structure 6 is opposite to the sub-retaining wall 61 in the adjacent retaining wall structure 6. This can further enhance the barrier function of the retaining wall structure 6 to the diffusion of the liquid crystal.
  • the gap between two adjacent sub-retaining walls in each retaining wall structure is 1 to 10 ⁇ m.
  • the gap between the two sub-retaining walls in the same retaining wall structure may be 1 ⁇ m, or the gap between the two sub-retaining walls in the same retaining wall structure may be 10 ⁇ m. In practical applications, this needs to be determined according to the actual application environment design, and is not limited herein.
  • the spacing between the retaining wall structure and the display area may be greater than 0.4 mm in view of process fluctuations in the fabrication of the alignment film layer.
  • the distance between the structure of the retaining wall and the display area may be 0.41 mm, 0.42 mm, etc., which needs to be determined according to the actual application environment, and is not limited herein.
  • the embodiment of the present disclosure further provides a display device, including the display panel provided by the embodiment of the present disclosure.
  • the display panel and the display device provided by the embodiments of the present disclosure provide a recess structure on a side of the opposite substrate and the array substrate facing the liquid crystal layer, and the recess structure is disposed in the non-visible area.
  • the diffusion space of the liquid crystal at the corners can be increased, thereby facilitating the liquid crystal to be more easily diffused to the corners of the display panel, thereby reducing the display panel.
  • the liquid crystal diffuses less than the corners of the corners, resulting in a display failure.

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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)
  • Spectroscopy & Molecular Physics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

一种显示面板以及显示设备，包括：对置基板（1），与对置基板（1）相对的阵列基板（2），设置于对置基板（1）与阵列基板（2）之间的液晶层（3），设置于对置基板（1）与阵列基板（2）中的至少一个基板面向液晶层（3）一侧的凹陷结构（5）；显示面板具有显示区（S1）、包围显示区（S1）的非可视区（S2）、以及包围非可视区（S2）的封框胶区（S3）；凹陷结构（5）设置于非可视区（S2）的拐角处。

Description

显示面板以及显示设备
本公开要求在2017年3月3日提交中国专利局、公开号为201720206950.9、公开名称为“一种显示面板以及显示设备”的中国专利公开的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及显示领域，尤其涉及显示面板以及显示设备。
背景技术
液晶显示器(Liquid Crystal Display,LCD)，由于功耗低，画质高、体积小、重量轻的特点，倍受大家青睐，已成为当前显示器的主流。目前液晶显示器以薄膜晶体管(Thin Film Transistor，TFT)液晶显示面板为主，其一般包括相对设置的对置基板、TFT阵列基板以及设置于两基板之间的液晶层。
现有的制备液晶显示面板的过程中，在将液晶注入对置基板和阵列基板之间的相对空间时，通常是将液晶一滴滴的滴注在基板表面，然后将对置基板和阵列基板压合，液晶通过扩散填充满封框胶以内的区域。但由于液晶粘度较大，扩散空间较小，毛细现象较严重，使得液晶显示面板的四个角落处会出现液晶扩散不到的情况，进而对液晶显示面板的显示形成不良影响。
发明内容
本公开实施例提供的显示面板，包括：
对置基板，
与所述对置基板相对的阵列基板，
设置于所述对置基板与所述阵列基板之间的液晶层，
设置于所述对置基板与所述阵列基板中的至少一个基板面向所述液晶层一侧的凹陷结构；
所述显示面板具有显示区、包围所述显示区的非可视区、以及包围所述非可视区的封框胶区；其中，所述凹陷结构设置于所述非可视区的拐角处。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，所述显示面板还包括：设置于所述对置基板与所述阵列基板中的至少一个基板面向所述液晶层的一侧的目标膜层；
所述目标膜层具有所述凹陷结构；且所述目标膜层在所述凹陷结构所在区域的厚度小于所述目标膜层在其它区域的厚度。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，所述凹陷结构的开口端在所述显示面板的正投影覆盖所述凹陷结构的底端在所述显示面板的正投影。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，沿所述凹陷结构的底端指向开口端的方向，所述凹陷结构面向所述显示区的一侧以线性上升的方式向所述显示区延伸。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，沿所述凹陷结构的底端指向开口端的方向，所述凹陷结构面向所述显示区的一侧以阶梯式上升的方式向所述显示区延伸。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，在垂直于所述显示面板的方向上，所述凹陷结构贯穿所述目标膜层。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，设置于所述对置基板上的目标膜层包括平坦层。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，设置于所述阵列基板上的目标膜层包括平坦层、钝化层、栅绝缘层中之一或组合。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，所述显示面板还包括：设置于所述非可视区且包围所述显示区的至少一圈挡墙结构，每一圈所述挡墙结构包括多个相互间隔的子挡墙；所述凹陷结构位于所述挡墙结构面向所述封框胶区的一侧。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，所述显示面板设置有多圈所述挡墙结构，每圈所述挡墙结构中相邻两个子挡墙之间的间隙与相邻圈挡墙结构中的子挡墙相对设置。
在本公开的一些实施例中，在本公开实施例提供的上述显示面板中，所述凹陷结构在平行于所述显示面板的截面图形为三角形、矩形或圆形。
相应地，本公开还提供了显示设备，包括上述显示面板。
附图说明
图1为本公开实施例提供的显示面板的剖视示意图；
图2为本公开实施例提供的显示面板的俯视示意图；
图3为本公开实施例提供的在显示面板的目标膜层设置凹陷结构的结构示意图；
图4为本公开实施例提供的凹陷结构的设置处的俯视示意图；
图5为本公开实施例提供的凹陷结构在拐角处的放大示意图之一；
图6为本公开实施例提供的凹陷结构在拐角处的放大示意图之二；
图7为本公开实施例提供的凹陷结构在拐角处的放大示意图之三；
图8为本公开实施例提供的设置有挡墙结构的显示面板示意图。
具体实施方式
下面结合说明书附图对本公开实施例的实现过程进行详细说明。需要注意的是，自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。并且在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互组合。
附图中各图形的大小和形状不反映显示面板以及显示设备的真实比例，目的只是示意说明本公开内容。
参见图1和图2所示，本公开实施例提供一种显示面板，该显示面板包 括：对置基板1，与对置基板1相对设置的阵列基板2，设置于对置基板1与阵列基板2之间的液晶层3，以及设置于对置基板1与阵列基板2中的至少一个基板面向液晶层3一侧的凹陷结构5。并且，显示面板具有显示区S1、包围显示区S1的非可视区S2、以及包围非可视区S2的封框胶区S3；其中，凹陷结构5设置于非可视区S2的拐角处。一般显示区S1用于进行显示，封框胶区S3用于设置封框胶4。
本公开实施例提供的显示面板，通过在对置基板与阵列基板中的至少一个基板面向液晶层一侧设置凹陷结构，并使该凹陷结构设置于非可视区的拐角处，这样在将对置基板和阵列基板压合时，可以使液晶在拐角处的扩散空间增大，从而有利于使液晶更容易扩散到显示面板的拐角处，进而可以降低显示面板由于液晶扩散不到拐角的角落处而产生显示不良的几率。
需要说明的是，本公开实施例中的显示面板为具有拐角的显示面板。例如图2所示，显示面板的显示区S1为四边形，常用的采用四边形作为显示区的可以如，电脑显示屏，手机显示屏，平板显示屏等。另外，对于本公开实施例中的非可视区S2，其可以指显示区S1与封框胶区S3之间的所有区域，即，对于显示面板，显示区S1一般位于显示面板的中部，封框胶区S3位于显示面板的外边框区域，显示区S1与封框胶区S3并不直接接触，中间间隔有非可视区S2。并且为了使液晶能够充分覆盖显示区S1，通常在非可视区S2也进行覆盖液晶，而封框胶4则密封覆盖显示区S1以及非可视区S2的液晶。由于显示区S1一般为四边形，则围绕在显示区S1***的非可视区S2为具有拐角的方形框带区，则在该非可视区S2的拐角位置设置凹陷结构5时，可以使液晶在扩散时，容易扩散到角落区域，避免显示面板在角落区域由于液晶扩散不到而形成气泡的显示不良问题。
一般而言，对于对置基板和阵列基板，其上一般会设置有多个膜层，在本公开实施例中，如图1所示，对置基板1具有面向液晶层3一侧的第一表面001，该第一表面001可以指对置基板1设置有膜层的表面。阵列基板2具有面向液晶层3一侧的第二表面002，该第二表面002可以指阵列基板2 设置有膜层的表面。在具体实施时，如图1所示，在本公开实施例提供的上述显示面板中，可以在对置基板1的第一表面001所在的非可视区S2的拐角位置处设置凹陷结构5。或者，也可以在阵列基板2的第二表面002所在的非可视区S2的拐角位置处设置凹陷结构5。这样在将对置基板1和阵列基板2压合时，可以使液晶较容易扩散到显示面板的拐角处，从而可以降低显示面板的角落区域由于液晶扩散不到而产生显示不良的几率。
进一步地，如图1所示，分别均在对置基板1的第一表面001和阵列基板2的第二表面002所在的非可视区S2的拐角位置处设置凹陷结构5。这样在将对置基板1和阵列基板2压合时，可以使液晶更容易扩散到显示面板的拐角区域，降低显示面板的角落区域由于液晶扩散不到而产生显示不良的几率。在具体实施时，可以根据实际应用环境的需要将凹陷结构进行相应设置，在此不做限制。
对于设置于对置基板的凹陷结构，可以是将对置基板中位于非可视区拐角处的多层薄膜同时去除以形成的，也可以是将对置基板中位于非可视区拐角处的某一膜层进行去除以形成的。在具体实施时，如图3所示，显示面板还可以包括：设置于对置基板1面向液晶层3的一侧的目标膜层，目标膜层具有凹陷结构5；且目标膜层在凹陷结构5所在区域的厚度小于目标膜层在其它区域的厚度。以下说明均以第一膜层10代表设置于对置基板1面向液晶层3的一侧的目标膜层，即对置基板1面向液晶层3的一侧设置有第一膜层10，这样可以通过使第一膜层10在非可视区S2的拐角位置的厚度小于其它区域的厚度进而以形成凹陷结构。在具体实施时，第一膜层10可以是设置在对置基板1面向液晶层3一侧的最外侧膜层，即，该第一膜层10为设置在对置基板1上最接近液晶层3的膜层。或者，第一膜层10也可以是设置在对置基板1面向液晶层3一侧的多个膜层中的一个或多个膜层，即，通过将该膜层在非可视区S2的拐角位置处进行薄化处理，这样再在该膜层上依次设置其它膜层时，由于同一膜层的形成厚度一般相同，进而可以最终在非可视区的拐角位置处形成凹陷结构5。具体的，例如，可以将对置基板1上的平坦层在非可视 区S2的拐角位置处的薄膜去除。在实际应用中，在平坦层面向液晶层一侧还设置有配向膜层(图中未示出)，但由于对置基板上的平坦层一般较厚，而配向膜层较薄，则配向膜层的厚度可忽略不计。从而将平坦层在非可视区的拐角位置处的薄膜去除以形成凹陷结构时，可以形成深度较明显的凹陷结构，有利于实现使液晶更容易向拐角区域扩散。
对于设置于阵列基板的凹陷结构，可以是将阵列基板中位于非可视区拐角处的多层薄膜同时去除以形成的，也可以是将阵列基板中位于非可视区拐角处的某一膜层进行去除以形成的。在具体实施时，如图3所示，显示面板还可以包括：设置于阵列基板2面向液晶层3的一侧的目标膜层；并且，目标膜层具有凹陷结构5；且目标膜层在凹陷结构5所在区域的厚度小于目标膜层在其它区域的厚度。以下说明均以第二膜层20代表设置于阵列基板2面向液晶层3的一侧的目标膜层，即阵列基板2面向液晶层3的一侧设置有第二膜层20，这样可以通过使第二膜层20在非可视区S2的拐角位置的厚度小于其它区域的厚度进而以形成凹陷结构。在具体实施时，第二膜层20可以是设置在阵列基板2面向液晶层3一侧的最外侧膜层，即，该第二膜层20为设置在阵列基板2上最接近液晶层3的膜层。或者，第二膜层20也可以是设置在阵列基板2面向液晶层3一侧的多个膜层中的一个或多个膜层，即，通过将该膜层在非可视区S2的拐角位置处进行薄化，这样再在该膜层上依次设置其它膜层时，由于同一膜层的形成厚度一般相同，进而可以最终在非可视区的拐角位置形成凹陷结构5。具体的，例如，可以将阵列基板2上的平坦层、钝化层、栅绝缘层中之一或组合在非可视区S2的拐角位置处的薄膜去除。在实际应用中，在平坦层面向液晶层一侧还设置有配向膜层(图中未示出)，但由于阵列基板上的平坦层或钝化层一般较厚，而配向膜层较薄，则配向膜层的厚度可忽略不计。从而将平坦层或钝化层在非可视区的拐角位置处的薄膜去除以形成凹陷结构时，可以形成深度较明显的凹陷结构，有利于实现使液晶更容易向拐角区域扩散。在实际应用中，用于实现彩色显示的彩膜层可以设置于对置基板上，或者也可以设置于阵列基板上，在此不作限定。
在具体实施时，凹陷结构5可以设置在非可视区S2拐角位置的中部。例如，如图2所示，凹陷结构5的各个内侧面可以由目标膜层的侧壁构成。当然，凹陷结构5也可以设置在非可视区S2拐角位置的边缘区域，例如，如图4所示，凹陷结构5是由目标膜层的侧壁与封框胶构成。在实际应用中，关于凹陷结构的具体构成，可以在具体实施时进行灵活设置，本公开在此不做限制。
进一步地，为了使液晶能够更容易地向非可视区拐角位置处的凹陷结构5扩散，降低液晶向凹陷结构底端扩散的难度，在具体实施时，如图5与图6所示(其中，图5为显示面板在拐角位置的放大示意图，图6为显示面板在拐角位置处的放大示意图)，可以使凹陷结构5的开口端在显示面板的正投影覆盖凹陷结构5的底端在显示面板的正投影。这样可以使其开口端的面积大于凹陷结构底端的面积，从而可以有利于液晶扩散。
在具体实施时，可以使液晶沿着具有第一坡度的内侧面进行流动，如图5所示，在沿凹陷结构5的底端指向开口端的方向上，可以使凹陷结构5面向显示区S1的一侧以线性上升的方式向显示区S1延伸。具体地，以设置于对置基板1上的凹陷结构5为例，可以使对置基板1上的凹陷结构5的内侧面为平面，并使该平面以与第一表面001成预设倾斜角，由凹陷结构5的底端向其开口端进行延伸。设置于阵列基板2上的凹陷结构5也可以参照上述方式实施，在此不作赘述。
在具体实施时，如图6所示，在沿凹陷结构5的底端指向开口端的方向上，可以使凹陷结构5面向显示区S1的一侧以阶梯式上升的方式向显示区S1延伸。具体地，以设置于对置基板1上的凹陷结构5为例，可以使凹陷结构5的内侧面采用台阶状的形式，由凹陷结构的底端向其开口端进行延伸。设置于阵列基板2上的凹陷结构5也可以参照上述方式实施，在此不作赘述。
在具体实施时，如图7所示，在垂直于显示面板的方向上，凹陷结构5可以贯穿目标膜层。具体地，以设置于对置基板1上的凹陷结构5为例，凹陷结构5可以为过孔。设置于阵列基板2上的凹陷结构5也可以参照上述方 式实施，在此不作赘述。
关于凹陷结构的具体形状，其中，可以为三棱锥形，这样如图2与图4所示，可以使凹陷结构5在平行于显示面板的截面图形，即其在沿平行于第一表面的截面图形为三角形。在具体实施时，也可以使凹陷结构的形状为四棱锥形，则其在沿平行于第一表面的截面图形为矩形。当然，也可以使陷结构的形状为圆柱形，则其在沿平行于第一表面的截面图形为圆形。
为了防止液晶过早地扩散到封框胶区S3与封框胶接触，导致液晶被封框胶污染，在具体实施时，如图8(图8仅以两圈挡墙结构为例)所示，本公开实施例在显示面板的非可视区S2还设置有包围显示区的至少一圈挡墙结构6，每一圈挡墙结构6包括多个相互间隔子挡墙61，其中，凹陷结构5位于挡墙结构6面向封框胶区S3的一侧。在具体实施时，挡墙结构可以为一圈、两圈、三圈等，其具体圈数需要根据实际应用环境来设计确定，在此不作限定。
在具体实施时，为了进一步防止液晶过早地扩散到封框胶区S3与封框胶接触，如图8所示，显示面板在非可视区S2设置有多圈挡墙结构6，每圈挡墙结构6中相邻两个子挡墙61之间的间隙与相邻圈挡墙结构6中的子挡墙61相对设置。这样可以进一步加强挡墙结构6对液晶扩散的阻挡能力。
在具体实施时，每一挡墙结构中相邻两个子挡墙之间的间隙为1～10μm。具体地，可以使同一挡墙结构中的两个子挡墙之间的间隙为1μm，也可以使同一挡墙结构中的两个子挡墙之间的间隙为10μm。在实际应用中，这需要根据实际应用环境设计确定，在此不作限定。
考虑到制作配向膜层时的工艺波动，挡墙结构与显示区之间的间距可以大于0.4mm。当然，在实际应用中，挡墙结构与显示区之间的间距具体可以为0.41mm、0.42mm等，其需要根据实际应用环境设计确定，在此不作限定。
本公开实施例还提供一种显示设备，包括本公开实施例提供的显示面板。
综上所述，本公开实施例提供的显示面板以及显示设备，通过在对置基板与阵列基板中的至少一个基板面向液晶层一侧设置凹陷结构，并使该凹陷 结构设置于非可视区的拐角处，这样在将对置基板和阵列基板压合时，可以使液晶在拐角处的扩散空间增大，从而有利于使液晶更容易扩散到显示面板的拐角处，进而可以降低显示面板由于液晶扩散不到拐角的角落处而产生显示不良的几率。
显然，本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开实施例的精神和范围。这样，倘若本公开实施例的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (12)

  1. 一种显示面板，包括：
    对置基板，
    与所述对置基板相对的阵列基板，
    设置于所述对置基板与所述阵列基板之间的液晶层，
    设置于所述对置基板与所述阵列基板中的至少一个基板面向所述液晶层一侧的凹陷结构；
    所述显示面板具有显示区、包围所述显示区的非可视区、以及包围所述非可视区的封框胶区；其中，所述凹陷结构设置于所述非可视区的拐角处。
  2. 如权利要求1所述的显示面板，其中，所述显示面板还包括：设置于所述对置基板与所述阵列基板中的至少一个基板面向所述液晶层的一侧的目标膜层；
    所述目标膜层具有所述凹陷结构；且所述目标膜层在所述凹陷结构所在区域的厚度小于所述目标膜层在其它区域的厚度。
  3. 如权利要求2所述的显示面板，其中，所述凹陷结构的开口端在所述显示面板的正投影覆盖所述凹陷结构的底端在所述显示面板的正投影。
  4. 如权利要求3所述的显示面板，其中，沿所述凹陷结构的底端指向开口端的方向，所述凹陷结构面向所述显示区的一侧以线性上升的方式向所述显示区延伸。
  5. 如权利要求3所述的显示面板，其中，沿所述凹陷结构的底端指向开口端的方向，所述凹陷结构面向所述显示区的一侧以阶梯式上升的方式向所述显示区延伸。
  6. 如权利要求3所述的显示面板，其中，在垂直于所述显示面板的方向上，所述凹陷结构贯穿所述目标膜层。
  7. 如权利要求2所述的显示面板，其中，设置于所述对置基板上的目标膜层包括平坦层。
  8. 如权利要求2所述的显示面板，其中，设置于所述阵列基板上的目标膜层包括平坦层、钝化层、栅绝缘层中之一或组合。
  9. 如权利要求1所述的显示面板，其中，所述显示面板还包括：设置于所述非可视区且包围所述显示区的至少一圈挡墙结构，每一圈所述挡墙结构包括多个相互间隔的子挡墙；所述凹陷结构位于所述挡墙结构面向所述封框胶区的一侧。
  10. 如权利要求9所述的显示面板，其中，所述显示面板设置有多圈所述挡墙结构，每圈所述挡墙结构中相邻两个子挡墙之间的间隙与相邻圈挡墙结构中的子挡墙相对设置。
  11. 如权利要求1所述的显示面板，其中，所述凹陷结构在平行于所述显示面板的截面图形为三角形、矩形或圆形。
  12. 一种显示设备，其中，包括如权利要求1～10任一项所述的显示面板。
PCT/CN2018/076015 2017-03-03 2018-02-09 显示面板以及显示设备 WO2018157725A1 (zh)

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