WO2020113655A1 - 显示面板、检测方法和显示装置 - Google Patents
显示面板、检测方法和显示装置 Download PDFInfo
- Publication number
- WO2020113655A1 WO2020113655A1 PCT/CN2018/121015 CN2018121015W WO2020113655A1 WO 2020113655 A1 WO2020113655 A1 WO 2020113655A1 CN 2018121015 W CN2018121015 W CN 2018121015W WO 2020113655 A1 WO2020113655 A1 WO 2020113655A1
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- WIPO (PCT)
- Prior art keywords
- display panel
- sealant
- substrate
- coating area
- spacer
- Prior art date
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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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Definitions
- the present application relates to the field of display technology, in particular to a display panel, a detection method and a display device.
- the LCD usually includes an array substrate and a color film substrate that are oppositely arranged, and by applying a frame sealing glue around the color film substrate or the array substrate, the color film substrate and the array substrate are sealed to the box
- the frame glue design is to apply the frame glue on the BPS.
- the present application provides a display panel, a detection method, and a display device to detect abnormal frame glue.
- the present application provides a display panel, including: a substrate, a frame glue coating area, a frame glue and a reflective structure, the frame glue coating area is located in the non-display area of the substrate, the frame The glue is disposed in the coating area of the sealant, and is bonded to the surface of the substrate, the reflective structure is disposed in the coating area of the sealant, and is located on the surface of the sealant, and is set to reflect Light.
- the substrate includes a light-shielding layer, and the light-shielding layer is disposed in the sealant coating area and avoids the reflective surface of the reflective structure.
- the substrate includes an insulating layer and a spacer, the insulating layer and the spacer are disposed in a display area of the substrate, and the spacer is located above the insulating layer; the light reflection
- the structure includes a plurality of bosses, and the materials of the boss and the insulating layer are the same; the light-shielding layer is filled between the bosses; and the material of the light-shielding layer and the spacer is the same.
- the spacer is a black resin material.
- the height of the boss and the shading layer are equal.
- the total surface area of the boss is smaller than the total surface area of the light shielding layer.
- the height of the boss is smaller than the height of the spacer.
- the bosses are elongated and are distributed in parallel along the coating direction of the sealant.
- the bosses are distributed in a ring shape in the sealant coating area.
- the bosses are distributed in dots in the coating area of the sealant.
- the shading layer is covered with the sealant coating area, and the reflective structure is provided on the surface of the shading layer.
- the reflective structure is provided at the edge of the frame glue.
- the substrate is an array substrate.
- the present application also discloses a method for detecting a display panel.
- the method for detecting the display panel includes the following steps:
- the emitting part of the detection mechanism emits light towards the frame glue coating area
- the receiving part of the detection mechanism receives the reflection signal of the coating area of the frame glue
- the output member of the detection mechanism outputs the detection result based on the reflected signal.
- the step of the output member of the detection mechanism outputting the detection result according to the reflection signal further comprises: determining the position information of the abnormal area of the frame glue coating according to the reflection signal, and outputting the detection information.
- the present application also discloses a display device including a display panel and a driving circuit for driving the display panel.
- the display panel includes: a substrate, a frame glue coating area, a frame glue and a reflective structure, and the frame glue coating area Located in the non-display area of the substrate, the sealant is disposed in the coating area of the sealant, is in contact with the surface of the substrate, the reflective structure is disposed in the coating area of the sealant, and is located The surface of the frame glue is configured to reflect the incident light.
- the substrate includes a light-shielding layer, and the light-shielding layer is disposed in the sealant coating area and avoids the reflective surface of the reflective structure.
- the substrate includes an insulating layer and a spacer, the insulating layer and the spacer are disposed in a display area of the substrate, and the spacer is located above the insulating layer; the light reflection
- the structure includes a plurality of bosses, and the materials of the boss and the insulating layer are the same; the light-shielding layer is filled between the bosses; and the material of the light-shielding layer and the spacer is the same.
- the frame glue Compared with the solution with only a black spacer (BPS) under the frame glue, since the photoresist of the spacer is black, when the black frame glue is covered on it, the frame glue itself absorbs a certain amount of light during monitoring. If there is a frame defect.
- a reflective structure is provided under the frame glue, so that when the frame glue is detected normally, the light emitted by the detection mechanism is absorbed by the frame glue, and no light is reflected; if the position of the frame glue changes or other abnormalities, the light emitted by the detection mechanism It is reflected back by the reflective structure, thereby discovering the abnormality of the frame glue.
- Figure 1 is a schematic diagram of a display panel
- Fig. 2 is a schematic view of the cross section along A-A' in Fig. 1;
- FIG. 3 is a schematic diagram of a substrate containing a reflective structure according to an embodiment of the present application.
- FIG. 4 is a schematic diagram of a substrate containing a light-shielding layer according to an embodiment of the present application
- FIG. 5 is a schematic diagram of a boss according to an embodiment of the present application.
- FIG. 6 is a schematic diagram of a dot-shaped boss according to an embodiment of the present application.
- FIG. 7 is a schematic diagram of an annular boss according to an embodiment of the present application.
- FIG. 8 is a schematic diagram of a display panel according to an embodiment of the present application.
- FIG. 9 is a schematic diagram of a display panel detection method according to an embodiment of the present application.
- FIG. 10 is a schematic diagram of detection when a sealant is normal in an embodiment of the present application.
- FIG. 11 is a schematic diagram of detection when a sealant is abnormal according to an embodiment of the present application.
- FIG. 12 is a schematic diagram of a display device according to an embodiment of the present application.
- FIG. 13 is a schematic diagram of a detection mechanism according to an embodiment of the present application.
- the features defined as “first” and “second” may explicitly or implicitly include one or more features.
- the meaning of “plurality” is two or more.
- the term “comprising” and any variations thereof are intended to cover non-exclusive inclusions.
- connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
- installation should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
- an embodiment of the present application discloses a display panel 110 including a substrate 120, a sealant coating area 121, a sealant 130 and a reflective structure 122.
- the sealant coating area 121 is located on the substrate 120
- the sealant 130 is disposed in the sealant coating area 121, which is attached to the surface of the substrate 120
- the reflective structure 122 is disposed in the sealant coating area 121, and is located on the surface of the sealant 130, and is configured to reflect The incoming light; where the substrate is an array substrate.
- a reflective structure is provided under the frame glue, so that when the frame glue is detected normally, the light emitted by the detection mechanism is absorbed by the frame glue and there will be no light reflection; if the position of the frame glue changes or other abnormalities, the detection mechanism emits The light is reflected back by the reflective structure, thereby discovering the abnormality of the frame glue.
- the substrate 120 includes a light-shielding layer 123, which is disposed in the sealant coating area 121 and avoids the reflective surface of the reflective structure 122.
- the sealant 130 is a kind of colloid and does not completely shield light. If there is no light shielding layer 123 under the sealant 130, light will leak at the edge of the display panel 110, so a light shielding layer 123 is provided in the sealant coating area 121 Can play a role in blocking light.
- the substrate 120 includes an insulating layer 124 and a spacer 125, the insulating layer 124 and the spacer 125 are disposed in the display area of the substrate 120, and the spacer 125 is located above the insulating layer 124; the reflective structure 122 includes a plurality of Each boss 1221 has the same material as the insulating layer 124; the light shielding layer 123 is filled between the boss 1221; and the material of the light shielding layer 123 and the spacer 125 is the same.
- the reflective structure 122 is provided in the shape of a boss 1221, so that when the light emitted by the detection mechanism 200 shines on the reflective structure 122, the reflected light is more scattered, and it can be concluded that the abnormal state of the frame glue 130, if the reflective structure 122 is an entire plane, so it is difficult to judge the abnormality of the frame glue 130.
- the convex layer 1221 is formed by digging the insulating layer 124, the light shielding layer is designed at the digging hole, and the raised part of the insulating layer 124 is used as the reflective structure 122, and the coating position and line width of the monitoring frame glue 130 are reduced.
- the product loss caused by the abnormal 130 of the frame glue improves the yield.
- the spacer 125 is a black resin material.
- the material of the shading layer 123 and the spacer 125 are the same, and they are all made of black resin material, which has good light absorption effect and is convenient for detection and positioning.
- the material of the insulating layer 124 is an organic material.
- the insulating layer using organic materials has good compression resistance and lower cost, which is conducive to production.
- the height of the boss 1221 and the light shielding layer 123 are equal.
- the surface of the sealant coating area 121 is a flat surface, so that the contact area of the sealant 130 and the sealant coating area 121 is large, and the bonding force is relatively high. High, the substrate 120 is not easy to degumming.
- the total surface area of the boss 1221 is smaller than the total surface area of the light shielding layer 123.
- the projection 1221 since the projection 1221 is made of the insulating layer 124, it will transmit light by itself. By reducing the surface area of the projection 1221, the light transmission area is reduced, and the non-display area in the display panel 100 is prevented due to the projection 1221. The surface area is too large to cause serious light leakage.
- the height of the boss 1221 is smaller than the height of the spacer 124.
- the height of the boss 1221 is less than the height of the spacer 124, the height of the sealant coating area 121 in the substrate 120 is lower than the height of the display area in the substrate 120.
- the display area The spacer 124 has a positioning effect on the sealant 130 to prevent the sealant 130 from moving.
- the bosses 1221 are elongated, and are distributed in parallel along the length direction of the sealant.
- the boss 1221 has a long strip shape, and the area of the reflecting surface is relatively large.
- the bosses 1221 are distributed in dots in the sealant coating area 121.
- the protrusions 1221 are distributed in dots in the frame coating area 121, the light shielding layer 123 is filled between the protrusions 1221, and the reflection structures 122 in the shape of the protrusions 1221 cannot play a light blocking effect, but pass through The light of the boss 1221 is distributed in a dot-like manner and is relatively scattered, and the light leakage effect is not obvious.
- the bosses 1221 are distributed in a ring shape in the sealant coating area 121.
- bosses 1221 are distributed in a ring shape in the sealant coating area 121, it is easy to process the ring-shaped boss 1221 or the ring-shaped shading layer 123 and to keep the surface of the sealant coating area 121 flat It is easier to realize in the production process.
- the light-shielding layer 123 is covered with the sealant coating area 121, and the reflective structure 122 is disposed on the surface of the light-shielding layer 123.
- the light-shielding layer 123 covered with the sealant coating area 121 under the reflective structure 122 can achieve the maximum light-shielding effect. No matter how the reflective structure 122 is disposed, the light-shielding layer 123 is not affected.
- the reflective structure 122 is disposed at the edge of the sealant 130.
- a display panel 110 is also disclosed.
- the display panel 110 includes an array substrate, a sealant coating area 121, a sealant 130, and a boss made of an organic insulating material 1221, the sealant coating area 121 is located in the non-display area of the array substrate 120, the sealant 130 is disposed in the sealant coating area 121, and is bonded to the surface of the array substrate 120, and the boss 1221 is disposed in the sealant coating area 121, and is located on the surface of the frame glue 130, and is configured to reflect the incident light; the array substrate includes an opaque spacer 124, and the spacer 124 is filled between the bosses 1221.
- a detection method of the display panel 110 is also disclosed.
- the above-mentioned display panel 110 is detected.
- the detection method includes the steps of:
- S91 The emitting part of the detector emits light toward the frame coating area
- S92 The receiver of the detector receives the reflected signal from the coating area of the frame glue
- the plastic frame 130 when the plastic frame 130 is coated normally, the plastic frame 130 completely covers the reflective structure 122, the light emitted by the detector 240 is completely blocked by the plastic frame 130, and the detector 240 cannot receive the emission signal, so it can be concluded The sealant 130 is applied correctly.
- the reflective surface of the reflective structure 122 will be exposed. At this time, part of the light emitted by the detector 240 will be reflected back by the reflective structure 122 and the reflected signal received by the detector 240 In order to reflect light, it can be concluded that the coating of the sealant 130 is abnormal.
- the step of the output member of the detection mechanism outputting the detection result according to the reflection signal further includes: determining the position information of the abnormal area of the sealant coating according to the reflection signal, and outputting the detection information.
- the position information of the abnormal coating of the sealant 130 can be determined according to the reflection signal, and then the position information is fed back as the detection result.
- a display device 100 including the above-mentioned display panel 110 and a driving circuit 140 that drives the display panel 110.
- the technical solution of the present application can be widely used in various display panels, such as TN type display panel (full name Twisted Nematic, namely twisted nematic panel), IPS type display panel (In-Plane Switching, plane conversion), VA type display
- TN type display panel full name Twisted Nematic, namely twisted nematic panel
- IPS type display panel In-Plane Switching, plane conversion
- the panel Multi-domain Vertica Alignment, multi-quadrant vertical alignment technology
- OLED display panel for short organic light emitting display panel
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- Nonlinear Science (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
Description
Claims (20)
- 一种显示面板,包括;基板;框胶涂布区,位于所述基板的非显示区内;框胶,设置在所述框胶涂布区,与所述基板的表面相贴合;以及反光结构,设置在所述框胶涂布区,且位于所述框胶的表面,设置为反射射入的光线。
- 如权利要求1所述的一种显示面板,其中,所述基板包括遮光层,所述遮光层设置在所述框胶涂布区,且避让所述反光结构的反射面。
- 如权利要求2所述的一种显示面板,其中,所述基板包括绝缘层和隔垫物,所述绝缘层和所述隔垫物设置在所述基板的显示区,且所述隔垫物位于所述绝缘层上方。
- 如权利要求3所述的一种显示面板,其中,所述反光结构包括多个凸台,所述凸台与所述绝缘层的材质相同;所述遮光层填充于所述凸台之间;所述遮光层与所述隔垫物的材质相同。
- 如权利要求3所述的一种显示面板,其中,所述隔垫物为黑色树脂材料。
- 如权利要求3所述的一种显示面板,其中,所述绝缘层的材料为有机材料。
- 如权利要求4所述的一种显示面板,其中,所述凸台与所述遮光层的高度相等。
- 如权利要求4所述的一种显示面板,其中,所述凸台的表面积之和小于所述遮光层的表面积之和。
- 如权利要求4所述的一种显示面板,其中,所述凸台的高度小于所述隔垫物的高度。
- 如权利要求4所述的一种显示面板,其中,所述凸台呈长条状,沿所述框胶涂布方向平行分布。
- 如权利要求4所述的一种显示面板,其中,所述凸台在所述框胶涂布区中成环状分布。
- 如权利要求4所述的一种显示面板,其中,所述凸台在所述框胶涂布区中成点 状分布。
- 如权利要求2所述的一种显示面板,其中,所述遮光层布满所述框胶涂布区,所述反光结构设置在所述遮光层的表面。
- 如权利要求1所述的一种显示面板,其中,所述基板为阵列基板。
- 如权利要求1所述的一种显示面板,其中,所述反光结构设置在所述框胶的边缘位置。
- 一种显示面板的检测方法,包括步骤:检测机构的发射件朝框胶涂布区发射光线;检测机构的接收件接收框胶涂布区的反射信号;检测机构的输出件根据反射信号输出检测结果。
- 如权利要求16所述的一种显示面板的检测方法,其中,所述检测机构的输出件根据反射信号输出检测结果的步骤还包括:根据反射信号确定框胶涂布异常区位置信息,并输出检测信息。
- 一种显示装置,包括显示面板以及驱动所述显示面板的驱动电路,所述显示面板包括:基板;框胶涂布区,位于所述基板的非显示区内;框胶,设置在所述框胶涂布区,与所述基板的表面相贴合;以及反光结构,设置在所述框胶涂布区,且位于所述框胶的表面,设置为反射射入的光线。
- 如权利要求18所述的一种显示装置,其中,所述基板包括遮光层,所述遮光层设置在所述框胶涂布区,且避让所述反光结构的反射面。
- 如权利要求19所述的一种显示装置,其中,所述基板包括绝缘层和隔垫物,所述绝缘层和所述隔垫物设置在所述基板的显示区,且所述隔垫物位于所述绝缘层上方;所述反光结构包括多个凸台,所述凸台与所述绝缘层的材质相同;所述遮光层填充于所述凸台之间;所述遮光层与所述隔垫物的材质相同。
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CN201811476677.7A CN109557691B (zh) | 2018-12-05 | 2018-12-05 | 一种显示面板、检测方法和显示装置 |
CN201811476677.7 | 2018-12-05 |
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CN113031323B (zh) * | 2021-03-22 | 2022-09-09 | 绵阳惠科光电科技有限公司 | 一种封框胶宽度检测方法、显示面板及显示装置 |
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