WO2024046007A1 - 一种显示模组及显示装置 - Google Patents
一种显示模组及显示装置 Download PDFInfo
- Publication number
- WO2024046007A1 WO2024046007A1 PCT/CN2023/110544 CN2023110544W WO2024046007A1 WO 2024046007 A1 WO2024046007 A1 WO 2024046007A1 CN 2023110544 W CN2023110544 W CN 2023110544W WO 2024046007 A1 WO2024046007 A1 WO 2024046007A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adhesive layer
- optical adhesive
- display panel
- edge
- display
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 125
- 239000012790 adhesive layer Substances 0.000 claims abstract description 120
- 230000000670 limiting effect Effects 0.000 claims abstract description 27
- 239000010410 layer Substances 0.000 claims description 27
- 239000010949 copper Substances 0.000 abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052802 copper Inorganic materials 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 9
- 230000005686 electrostatic field Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 11
- 239000003292 glue Substances 0.000 description 9
- 238000009825 accumulation Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000002087 whitening effect Effects 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
Definitions
- the present invention relates to the technical field of display equipment, and in particular to a display module and a display device.
- the green screen problem needs to be solved before leaving the factory.
- testers found that the optical glue between the display panel and the cover in the display module may overflow when attached.
- the overflow is locally aggravated and even extends to the side of the display panel, causing copper rods to form.
- the charges generated during the test accelerate and move through the surface of the optical adhesive layer, aggravating the accumulation of charges in the edge area of the display panel, which will cause serious local greening of the display panel.
- the present invention provides a display module and a display device.
- the display module can improve the problem of greening of the edge of a display panel under copper rod testing or under the influence of an electrostatic field.
- a display module including:
- a display panel comprising a display area and a non-display area surrounding the display area
- the optical adhesive layer is located on the light-emitting side of the display panel and covers the display area;
- the cover plate is located on the side of the optical adhesive layer away from the display panel and covers all The display panel and the optical adhesive layer, the side of the cover plate facing the optical adhesive layer has a limiting groove for preventing the edge of the optical adhesive layer from overflowing, and at least the edge of the optical adhesive layer is located at the inside the limit slot.
- the limiting groove is a groove opposite to the optical glue layer, and the optical glue layer is located in the groove.
- the depth of the groove is less than or equal to the thickness of the optical adhesive layer.
- the shape of the area enclosed by the side walls of the groove matches the edge of the optical adhesive layer.
- the limiting groove is an annular groove provided around the edge of the optical glue layer, and the edge of the optical glue layer is located in the annular groove.
- the width of the assembly gap is 0.08mm to 0.2mm.
- a polarizer is also included, the polarizer is located between the display panel and the optical adhesive layer, and the edge of the polarizer is flush with the edge of the display panel.
- the ground layer is located on the side of the display panel away from the polarizer.
- the conductive medium is coated on the side of the display panel and extends to It is in contact with the side of the cover facing the display panel, the edge of the polarizer and the side of the ground layer.
- the optical adhesive layer includes a main body portion covering the display area of the display panel and at least one extension portion connected to an edge of the main body portion, and at least one extension portion is connected to at least one of the conductive media.
- the extension part is filled between the corresponding conductive medium and the main body part.
- an edge of the extension portion away from the main body portion is flush with an edge of the display panel.
- the extension portion is unevenly arranged on a side surface away from the main body portion.
- the orthographic projection of the extension portion on the display panel is in a rectangular, trapezoidal or semi-elliptical shape.
- the main body part of the optical adhesive layer is rectangular, and at least the long side of the main body part is connected with The extension.
- the present invention also provides a display device, including any display module provided in the above technical solutions.
- the invention provides a display module and a display device.
- the display module includes a display panel, an optical adhesive layer and a cover plate.
- the display panel includes a display area and a non-display area surrounding the display area.
- the optical adhesive layer is located on the light-emitting side of the display panel. , and covers the display area, the cover plate is located on the side of the optical adhesive layer away from the display panel, and covers the display panel and the optical adhesive layer. Since the cover plate has a limiting groove on the side facing the optical adhesive layer, at least the edge of the optical adhesive layer is located The limit groove can prevent the edge of the optical adhesive layer from overflowing.
- the limiting effect of the limit groove on the optical adhesive layer can prevent the optical adhesive layer from overflowing to the side of the display panel and block the path for electric charges to propagate to the edge of the display panel.
- it when conducting copper rod testing, it can avoid the accumulation of charges in the edge area of the display panel, thereby improving the problem of greening of the edge of the display panel under copper rod testing or under the influence of electrostatic fields.
- Figure 1 is a schematic structural diagram of a display module provided by an embodiment of the present invention.
- Figure 2 is a schematic structural diagram of another display module provided by an embodiment of the present invention.
- FIG. 3 is a schematic structural diagram of another display module provided by an embodiment of the present invention.
- Figure 4 is a schematic structural diagram of another display module provided by an embodiment of the present invention.
- Figure 5 is a schematic structural diagram of a cover plate and an optical adhesive layer bonded together according to an embodiment of the present invention
- Figure 6 is a schematic structural diagram of another display module provided by an embodiment of the present invention.
- Figure 7 is a schematic structural diagram of a cover plate provided by an embodiment of the present invention.
- Figure 8 is a schematic structural diagram of another display module provided by an embodiment of the present invention.
- Figure 9 is a schematic structural diagram of another display module provided by an embodiment of the present invention.
- Figure 10 is a schematic structural diagram of an optical adhesive layer provided by an embodiment of the present invention.
- Figure 11 is a schematic structural diagram of another optical adhesive layer provided by an embodiment of the present invention.
- icon 1-display panel; 2-optical adhesive layer; 21-main part; 22-extension part; 3-cover plate; 31-limiting groove; 311-groove; 312-annular groove; 4-polarizer; 5-ground layer; 6-conductive medium; 7-cavity.
- the present invention provides a display module, including:
- Display panel 1 includes a display area and a non-display area surrounding the display area;
- optical adhesive layer 2 is located on the light-emitting side of the display panel 1 and covers the display area;
- the cover plate 3 is located on the side of the optical adhesive layer 2 away from the display panel 1 and covers the display panel 1 and the optical adhesive layer 2.
- the cover plate 3 has a structure on the side facing the optical adhesive layer 2 to prevent the optical adhesive layer 2. At least the edge of the optical adhesive layer 2 is located in the limiting groove 31 .
- the display module provided by the above embodiments of the invention includes a display panel 1, an optical adhesive layer 2 and a cover plate 3.
- the display panel 1 includes a display area and a non-display area surrounding the display area.
- the optical adhesive layer 2 is located on the light exit side of the display panel 1. , and covers the display area, the cover plate 3 is located on the side of the optical adhesive layer 2 away from the display panel 1, and covers the display panel 1 and the optical adhesive layer 2, because the cover plate 3 has a limiting groove 31 on the side facing the optical adhesive layer 2 , at least the edge of the optical adhesive layer 2 is located in the limiting groove 31, which can prevent the edge of the optical adhesive layer 2 from overflowing.
- the optical adhesive layer 2 can be prevented from overflowing to the display.
- the side of panel 1 blocks the path of charge propagation to the edge of display panel 1, which can avoid the accumulation of charges in the edge area of the display panel during copper rod testing, thereby improving the edge generation of the display panel under copper rod testing or under the influence of electrostatic fields. Green question.
- the above-mentioned limiting groove 31 can be the same as
- the optical adhesive layer 2 faces the groove 311, and the optical adhesive layer 2 is located in the groove 311, that is, the entire surface of the optical adhesive layer 2 is located in the groove 311.
- the cover plate 3 is attached to the optical adhesive layer 2
- the optical adhesive layer 2 is embedded in the groove 311, and the edge of the optical adhesive layer 2 can be limited through the side walls of the groove 311 to prevent the optical adhesive layer 2 from overflowing, thereby preventing the optical adhesive layer 2 from overflowing. It can avoid the accumulation of charges in the edge area of the display panel and improve the problem of greening at the edge of the display panel.
- the depth of the above-mentioned groove 311 can be less than or equal to the thickness of the optical adhesive layer 2, which can not only ensure the adhesion of the side of the optical adhesive layer 2 away from the cover plate 3 with other film layers, but also ensure the groove. 311 limits the edge of the optical adhesive layer 2. As shown in FIGS. 1 and 3 , the depth of the groove 311 may be less than the thickness of the optical glue layer 2 . As shown in FIGS. 2 and 4 , the depth of the groove 311 may be equal to the thickness of the optical glue layer 2 .
- the depth of the above-mentioned groove 311 can be 0.1mm-0.15mm, and the specific value can be set according to the thickness of the optical adhesive layer 2, and is not limited here.
- the shape of the area enclosed by the side walls of the groove 311 can match the edge of the optical adhesive layer 2 , which can more accurately limit the edge of the optical adhesive layer 2 .
- the shape of the area enclosed by the side walls of the groove 311 matches the edge of the optical adhesive layer 2 means that the edge of the optical adhesive layer 2 happens to be in contact with the side walls of the groove 311, or , the gap width between the edge of the optical adhesive layer 2 and the side wall of the groove 311 is equal everywhere.
- the shape enclosed by the side walls of the groove 311 may not match the edge of the optical adhesive layer 2, as long as the optical adhesive layer 2 is located within the groove 311.
- the shape of the groove 311 can be There is no restriction, it depends on the actual situation.
- the width l of the assembly gap can be set to 0.08 mm to 0.2 mm to meet the assembly error requirements.
- the surface of the cover 3 facing the display panel 1 may be approximately rectangular, and the distance between the edge of the groove 311 and the four sides of the edge of the cover 3 may be equal.
- the distance between the edge of the groove 311 and the edge of the cover plate 3 may be greater than or equal to 0 and less than or equal to 0.15 mm.
- the above-mentioned limiting groove 31 can also be an annular groove 312 provided around the edge of the optical adhesive layer 2 , and the edge of the optical adhesive layer 2 is located in the annular groove 312 Inside. Since the annular groove 312 is arranged around the edge of the optical adhesive layer 2, when the cover plate 3 and the optical adhesive layer 2 are attached, the edge of the optical adhesive layer 2 can be embedded in the annular groove 312, and the outer wall of the annular groove 312 can play a role in optical protection. The limiting function of the adhesive layer 2 prevents the optical adhesive layer 2 from overflowing.
- the width of the assembly gap can be set to 0.08mm to 0.2mm to meet the requirements of assembly errors.
- the display module also includes a polarizer 4.
- the polarizer 4 is located between the display panel 1 and the optical adhesive layer 2.
- the edge of the polarizer 4 is flush with the edge of the display panel 1. It can improve the light emission effect of the display module. It should be noted that the fact that the edge of the upper polarizer 4 is flush with the edge of the display panel 1 does not mean that it is absolutely flush, but that it is flush within the actual process error range.
- the display module also includes a ground layer 5 and at least one conductive medium 6.
- the ground layer 5 is located on the side of the display panel 1 away from the polarizer 4.
- the conductive medium 6 is coated on the display
- the side of the panel 1 extends to contact the side of the cover 3 facing the display panel 1 , the edge of the polarizer 4 and the side of the ground layer 5 .
- the conductive medium 6 on the side of the display panel 1 can accelerate the charge to the surface of the ground layer 5 during the copper rod test, so that the static electricity can be conducted away through the ground layer 5, which can reduce or even eliminate the local greening of the display panel 1.
- the conductive medium 6 may be conductive silver paste.
- the optical adhesive layer 2 is adhered to the cover plate 3 and the polarizer 4 respectively. Due to the assembly error, the size of the optical adhesive layer 2 needs to be smaller than the display panel 1 and polarizer 4 to ensure that the optical adhesive layer 2 does not interfere with other devices after assembly. However, testers found that when there is a cavity 7 at the edge of the conductive medium 6 and the optical adhesive layer 2, water vapor will be accommodated in the cavity 7.
- the above-mentioned optical adhesive layer 2 can include a main body portion 21 covering the display area of the display panel 1 and an edge connection with the main body portion 21
- At least one extension part 22 is arranged in a one-to-one correspondence with at least one conductive medium 6, that is, each extension part 22 is arranged opposite to one conductive medium 6, and the extension part 22 can be filled with the corresponding conductive medium 6 and the main body 21 , so that there is no void 7 between the conductive medium 6 and the optical adhesive layer 2 at the location where the conductive medium 6 is coated, to avoid the entry of water vapor at the location where the conductive medium 6 is coated, thereby preventing Ag+ and the optical adhesive layer 2 in the conductive medium 6 from entering.
- the I molecules in the polarizer 4 react to solve the problem of the whitening of the polarizer 4.
- the edge of the extension portion 22 away from the main body portion 21 may be flush with the edge of the display panel 1 .
- the conductive medium 6 covers the extension portion 22 , the conductive medium 6 can limit glue overflow on the extension portion 22 .
- the extension portion 22 can also appropriately extend beyond the edge of the display panel 1. The provision of the conductive medium 6 can eliminate the problem of local greening of the display panel 1 caused by the overflow of the optical adhesive layer 2. .
- the side of the extension portion 22 away from the main body portion 21 can be unevenly arranged, which can improve the adhesion ability of the conductive medium 6 there.
- the orthographic projection of the above-mentioned extending portion 22 on the display panel 1 may be in a rectangular, trapezoidal, semi-elliptical, etc. shape, or may be in other shapes, which is not limited here and depends on the actual situation.
- the orthographic projection of the extending portion 22 on the display panel 1 is rectangular; or, as shown in FIG. 11 , the orthographic projection of the extending portion 22 on the display panel 1 is semi-elliptical.
- the main body part 21 of the optical adhesive layer 2 may be in a rectangular shape, and at least the long side of the main body part 21 is connected to an extension part 22, as shown in FIGS. 10 and 11 .
- the extension 22 on the optical adhesive layer 2 22 corresponds to the position of the conductive medium 6, which can avoid the problem of the polarizer 4 becoming white.
- the number and size of the extension portions 22 on the long side of the optical adhesive layer 2 can be determined according to the size of the long side of the optical adhesive layer 2, and there is no limit here.
- two extension portions 22 can be provided on the long side in Figures 10 and 11.
- There are two extension parts 22, and the extension parts 22 on the two long sides of the optical adhesive layer 2 can be arranged oppositely.
- At least one short side of the main body part 21 may be connected with the extension part 22, as shown in FIGS. 10 and 11 . That is to say, the conductive medium 6 can be coated on the area corresponding to the short side of the display panel 1 to ensure the extraction of electrostatic charges.
- the extension 22 on the optical adhesive layer 2 corresponds to the position of the conductive medium 6 to prevent the polarizer 4 from turning white. The problem.
- the number and size of the extension portions 22 on the short side of the optical adhesive layer 2 can be determined according to the size of the long side of the optical adhesive layer 2 .
- the display module may include a composite film layer located on the side of the display panel 1 away from the polarizer 4 .
- the composite film layer may include an adhesive layer, foam and a layer of adhesive layer laminated in sequence in a direction away from the display panel 1 .
- the heat dissipation layer is generally made of metal material (for example, copper Cu).
- the heat dissipation layer can be used as the ground layer 5, that is, the heat dissipation layer can be grounded to conduct the charge on the edge of the display panel 1 and avoid the local greening of the display panel 1. occur.
- the present invention also provides a display device, including any display module provided in the above technical solutions.
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Abstract
一种显示模组及显示装置，显示模组包括：显示面板（1），包括显示区和围绕显示区的非显示区；光学胶层（2），位于显示面板（1）出光侧、且覆盖显示区；盖板（3），位于光学胶层（2）远离显示面板（1）的一侧、且覆盖显示面板（1）和光学胶层（2），盖板（3）朝向光学胶层（2）的一侧具有用于阻止光学胶层（2）的边缘外溢的限位槽（31），至少光学胶层（2）的边缘位于限位槽（31）内。能够改善铜棒测试下或者静电场影响下显示面板（1）边缘发绿的问题。
Description
相关申请的交叉引用
本申请要求2022年08月31日提交中国专利局、申请号为202211059438.8、申请名称为“一种显示模组及显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本发明涉及显示设备技术领域，特别涉及一种显示模组及显示装置。
如今显示模组产品一直存在的顽固性不良之一为绿屏问题，其一旦爆发，对终端品牌的口碑和销量将造成重大影响。故针对绿屏问题，提高产品的质量和体验感，需要在出厂之前解决。经过测试研究，测试人员发现，显示模组中显示面板与盖板之间的光学胶在贴附时可能产生溢胶，而溢胶局部加重，甚至延伸到显示面板的侧面时，会导致铜棒测试中产生的电荷通过光学胶层表面加速移动，加剧显示面板边缘区域电荷的聚集，这样会导致显示面板局部发绿变严重。
发明内容
本发明提供了一种显示模组及显示装置，上述显示模组能够改善铜棒测试下或者静电场影响下显示面板边缘发绿的问题。
为达到上述目的，本发明提供以下技术方案：
一种显示模组，包括：
显示面板，所述显示面板包括显示区和围绕所述显示区的非显示区；
光学胶层，所述光学胶层位于所述显示面板出光侧、且覆盖所述显示区；
盖板，所述盖板位于所述光学胶层远离所述显示面板的一侧、且覆盖所
述显示面板和所述光学胶层，所述盖板朝向所述光学胶层的一侧具有用于阻止所述光学胶层的边缘外溢的限位槽，至少所述光学胶层的边缘位于所述限位槽内。
可选地，所述限位槽为与所述光学胶层相对的凹槽，所述光学胶层位于所述凹槽内。
可选地，所述凹槽的深度小于等于所述光学胶层的厚度。
可选地，所述凹槽的侧壁围成的区域的形状与所述光学胶层的边缘相匹配。
可选地，所述限位槽为围绕所述光学胶层的边缘设置的环形槽，所述光学胶层的边缘位于所述环形槽内。
可选地，所述光学胶层的边缘与所述限位槽的侧壁之间具有组装间隙。
可选地，所述组装间隙的宽度为0.08mm至0.2mm。
可选地，还包括偏光片，所述偏光片位于所述显示面板与所述光学胶层之间，所述偏光片的边缘与所述显示面板的边缘平齐。
可选地，还包括接地层以及至少一处导电介质，所述接地层位于所述显示面板远离所述偏光片的一侧，所述导电介质涂覆于所述显示面板的侧面、且延伸至与所述盖板朝向所述显示面板的一侧、所述偏光片的边缘以及所述接地层的侧面接触。
可选地，所述光学胶层包括覆盖所述显示面板显示区的主体部以及与所述主体部的边缘连接的至少一个延伸部，至少一个所述延伸部与至少一处所述导电介质一一对应设置，所述延伸部填充于对应的所述导电介质与所述主体部之间。
可选地，所述延伸部远离所述主体部的边缘与所述显示面板的边缘平齐。
可选地，所述延伸部远离所述主体部的侧面凹凸不平设置。
可选地，所述延伸部在所述显示面板上的正投影呈矩形、梯形或者半椭圆形。
可选地，所述光学胶层的主体部呈矩形，至少所述主体部的长边连接有
所述延伸部。
本发明还提供一种显示装置，包括上述技术方案中提供的任意一种显示模组。
本发明提供了一种显示模组和显示装置，该显示模组包括显示面板、光学胶层以及盖板，显示面板包括显示区和围绕显示区的非显示区，光学胶层位于显示面板出光侧、且覆盖显示区，盖板位于光学胶层远离显示面板的一侧、且覆盖显示面板和光学胶层，由于盖板朝向光学胶层的一侧具有限位槽，至少光学胶层的边缘位于限位槽内，能够阻止光学胶层的边缘外溢，通过限位槽对光学胶层的限位作用，可以阻止光学胶层溢胶到显示面板的侧面，阻断电荷向显示面板边缘传播的路径，在进行铜棒测试时，能够避免显示面板边缘区域电荷的聚集，进而能够改善铜棒测试下或者静电场影响下显示面板边缘发绿的问题。
图1为本发明实施例提供的一种显示模组的结构示意图；
图2为本发明实施例提供的另一种显示模组的结构示意图；
图3为本发明实施例提供的另一种显示模组的结构示意图；
图4为本发明实施例提供的另一种显示模组的结构示意图；
图5为本发明实施例提供的一种盖板与光学胶层贴合的结构示意图；
图6为本发明实施例提供的另一种显示模组的结构示意图；
图7为本发明实施例提供的一种盖板的结构示意图；
图8为本发明实施例提供的另一种显示模组的结构示意图；
图9为本发明实施例提供的另一种显示模组的结构示意图；
图10为本发明实施例提供的一种光学胶层的结构示意图；
图11为本发明实施例提供的另一种光学胶层的结构示意图。
图标：
1-显示面板；2-光学胶层；21-主体部；22-延伸部；3-盖板；31-限位槽；
311-凹槽；312-环形槽；4-偏光片；5-接地层；6-导电介质；7-空洞。
1-显示面板；2-光学胶层；21-主体部；22-延伸部；3-盖板；31-限位槽；
311-凹槽；312-环形槽；4-偏光片；5-接地层；6-导电介质；7-空洞。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参考图1，本发明提供一种显示模组，包括：
显示面板1，显示面板1包括显示区和围绕显示区的非显示区；
光学胶层2，光学胶层2位于显示面板1出光侧、且覆盖显示区；
盖板3，盖板3位于光学胶层2远离显示面板1的一侧、且覆盖显示面板1和光学胶层2，盖板3朝向光学胶层2的一侧具有用于阻止光学胶层2的边缘外溢的限位槽31，至少光学胶层2的边缘位于限位槽31内。
上述发明实施例提供的显示模组中，包括显示面板1、光学胶层2以及盖板3，显示面板1包括显示区和围绕显示区的非显示区，光学胶层2位于显示面板1出光侧、且覆盖显示区，盖板3位于光学胶层2远离显示面板1的一侧、且覆盖显示面板1和光学胶层2，由于盖板3朝向光学胶层2的一侧具有限位槽31，至少光学胶层2的边缘位于限位槽31内，能够阻止光学胶层2的边缘外溢，通过限位槽31对光学胶层2的限位作用，可以阻止光学胶层2溢胶到显示面板1的侧面，阻断电荷向显示面板1边缘传播的路径，在进行铜棒测试时，能够避免显示面板边缘区域电荷的聚集，进而能够改善铜棒测试下或者静电场影响下显示面板边缘发绿的问题。
本发明实施例中，如图1至图4、图6所示，在盖板3与光学胶层2贴合时，可以至少光学胶层2的边缘嵌入限位槽31内，通过限位槽31的侧壁能够对光学胶层2的边缘进行限位，避免光学胶层2向显示面板1的侧面溢出，结构简单，易于制作。
在一种可能的实施方式中，如图1和图2所示，上述限位槽31可以为与
光学胶层2相对的凹槽311，光学胶层2位于凹槽311内，即整面光学胶层2均位于该凹槽311内。在盖板3与光学胶层2贴合时，光学胶层2嵌入凹槽311内，能够通过凹槽311的侧壁对光学胶层2的边缘进行限位，避免光学胶层2外溢，进而能够避免显示面板边缘区域电荷的聚集，改善显示面板边缘发绿的问题。
本发明实施例中，上述凹槽311的深度可以小于等于光学胶层2的厚度，既能保证对光学胶层2远离盖板3的一侧与其他膜层的贴合，也能保证凹槽311对光学胶层2边缘的限位。如图1和图3所示，凹槽311的深度可以小于光学胶层2的厚度，如图2和图4所示，凹槽311的深度可以等于光学胶层2的厚度。例如，上述凹槽311的深度可以为0.1mm-0.15mm，具体数值可以根据光学胶层2的厚度进行设置，在这里不做限制。
具体地，如图5所示，上述凹槽311的侧壁围成的区域的形状可以与光学胶层2的边缘相匹配，能够对光学胶层2边缘的限位更加精确。需要说明的是，上述凹槽311的侧壁围成的区域的形状与光学胶层2的边缘相匹配的意思指的是，光学胶层2的边缘恰好与凹槽311的侧壁接触，或者，光学胶层2的边缘各处与凹槽311的侧壁之间的间隙宽度均相等。
可选地，凹槽311的侧壁围成的形状也可以与光学胶层2的边缘不匹配，只要实现光学胶层2位于凹槽311内即可，具体地凹槽311的形状在这里可以不做限制，根据实际情况而定。
具体地，如图3、图4和图5所示，上述限位槽31的侧壁与光学胶层2之间可以具有组装间隙，能够在光学胶层与限位槽31存在组装误差的情况下，保证光学胶层2嵌入限位槽31内。
具体地，组装间隙的宽度l可以设置为0.08mm至0.2mm，满足组装误差的需求。
其中，如图5所示，盖板3朝向显示面板1的表面可以近似矩形，上述凹槽311的边缘距盖板3的边缘的四个侧边的距离可以相等。例如，凹槽311的边缘距盖板3边缘的距离可以为大于等于0且小于等于0.15mm。
在另一种可能的实施方式中，如图6和图7所示，上述限位槽31还可以为围绕光学胶层2的边缘设置的环形槽312，光学胶层2的边缘位于环形槽312内。由于环形槽312围绕光学胶层2的边缘设置，在盖板3与光学胶层2贴合时，光学胶层2的边缘可以嵌入环形槽312内，环形槽312的外侧壁能够起到对光学胶层2的限位作用，避免光学胶层2外溢。
本发明实施例中，上述环形槽312的外侧壁与光学胶层2的边缘之间可以具有组装误差。具体地，组装间隙的宽度可以设置为0.08mm至0.2mm，满足组装误差的需求。
本发明实施例中，如图8所示，显示模组还包括偏光片4，偏光片4位于显示面板1与光学胶层2之间，偏光片4的边缘与显示面板1的边缘平齐，能够改善显示模组的出光效果。需要说明的是，上偏光片4的边缘与显示面板1的边缘平齐并不代表绝对的平齐，而是考虑实际工艺误差范围内的平齐。
本发明实施例中，如图8所示，显示模组还包括接地层5以及至少一处导电介质6，接地层5位于显示面板1远离偏光片4的一侧，导电介质6涂覆于显示面板1的侧面，且延伸至与盖板3朝向显示面板1的一侧、偏光片4的边缘以及接地层5的侧面接触。通过显示面板1侧面的导电介质6可以在铜棒测试时将电荷加速移至接地层5的表面，从而可以将静电通过接地层5导走，能够使得显示面板1局部发绿现象减轻甚至消失。具体地，上述导电介质6可以为导电银浆。
其中，在上述显示模组组装的过程中，光学胶层2是通过粘贴的方式分别与盖板3和偏光片4进行粘贴，由于存在组装误差，则需要光学胶层2的尺寸小于显示面板1和偏光片4的尺寸，才能保证光学胶层2组装后不与其他器件进行干涉，然而测试人员发现，在导电介质6与光学胶层2的边缘具有空洞7时，空洞7内会容纳水汽，水汽作为溶液可能使得银浆中的Ag+和偏光片4中的I分子发生反应(2Ag++I2＝2AgI)，可能导致偏光片4对应区域碘分子失效，进而导致偏光片4该区域甚至延伸到偏光片4与显示区相对的区域发白的问题。
本发明实施例中，为了避免偏光片4发白的问题，如图9和图10所示，上述光学胶层2可以包括覆盖显示面板1显示区的主体部21以及与主体部21的边缘连接的至少一个延伸部22，至少一个延伸部22与至少一处导电介质6一一对应设置，即每个延伸部22与一处导电介质6相对设置，延伸部22可以填充于对应的导电介质6与主体部21之间，使得在导电介质6涂覆的位置导电介质6与光学胶层2之间没有空洞7，避免导电介质6涂覆处水汽的进入，进而避免导电介质6中的Ag+与偏光片4中的I分子发生反应，解决偏光片4发白的问题。
具体地，如图9所示，上述延伸部22远离主体部21的边缘可以与显示面板1的边缘平齐。由于导电介质6覆盖于延伸部22处，导电介质6能够限制延伸部22的溢胶。或者，由于延伸部22处由导电介质6覆盖，延伸部22也可以适当的超出显示面板1的边缘，导电介质6的设置可以消除光学胶层2溢胶造成的显示面板1局部发绿的问题。
具体地，上述延伸部22远离主体部21的侧面可以凹凸不平设置，能够提升导电介质6在该处的附着能力。
具体地，上述延伸部22在显示面板1上的正投影可以呈矩形、梯形或者半椭圆形等，也可以为其他形状，在这里不做限制，根据实际情况而定。例如，如图10所示，延伸部22在显示面板1上的正投影呈矩形；或者，如图11所示，延伸部22在显示面板1上的正投影呈半椭圆形。
具体地，光学胶层2的主体部21可以呈矩形，至少主体部21的长边连接有延伸部22，如图10和图11所示。光学胶层2的两侧的长边上具有延伸部22，也就是说，在显示面板1长边对应的区域可以涂覆导电介质6，保证静电电荷的引出，光学胶层2上的延伸部22与导电介质6的位置对应，可以避免偏光片4发白的问题。其中，光学胶层2长边上延伸部22的个数和尺寸可以根据光学胶层2长边的尺寸而定，在这里不做限制，例如，图10和图11中长边上可以设置两个延伸部22，且光学胶层2两个长边上的延伸部22可以相对设置。
具体地，至少主体部21的一个短边可以连接有延伸部22，如图10和图11所示。也就是说，在显示面板1短边对应的区域可以涂覆导电介质6，保证静电电荷的引出，光学胶层2上的延伸部22与导电介质6的位置对应，可以避免偏光片4发白的问题。其中，光学胶层2短边上延伸部22的个数和尺寸可以根据光学胶层2长边的尺寸而定。
本发明实施例中，显示模组可以包括位于显示面板1远离偏光片4一侧的复合膜层，该复合膜层可以包括沿远离显示面板1的方向依次层叠设置的粘接层、泡棉和散热层，散热层一般为金属材料(例如，铜Cu)制作，散热层可以作为接地层5使用，即散热层可以接地，导走显示面板1边缘的电荷，避免显示面板1局部发绿现象的发生。
本发明还提供一种显示装置，包括上述技术方案中提供的任意一种显示模组。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
Claims (15)
- 一种显示模组，其中，包括：显示面板，所述显示面板包括显示区和围绕所述显示区的非显示区；光学胶层，所述光学胶层位于所述显示面板出光侧、且覆盖所述显示区；盖板，所述盖板位于所述光学胶层远离所述显示面板的一侧、且覆盖所述显示面板和所述光学胶层，所述盖板朝向所述光学胶层的一侧具有用于阻止所述光学胶层的边缘外溢的限位槽，至少所述光学胶层的边缘位于所述限位槽内。
- 根据权利要求1所述的显示模组，其中，所述限位槽为与所述光学胶层相对的凹槽，所述光学胶层位于所述凹槽内。
- 根据权利要求2所述的显示模组，其中，所述凹槽的深度小于等于所述光学胶层的厚度。
- 根据权利要求2或3所述的显示模组，其中，所述凹槽的侧壁围成的区域的形状与所述光学胶层的边缘相匹配。
- 根据权利要求1所述的显示模组，其中，所述限位槽为围绕所述光学胶层的边缘设置的环形槽，所述光学胶层的边缘位于所述环形槽内。
- 根据权利要求1-5任一项所述的显示模组，其中，所述光学胶层的边缘与所述限位槽的侧壁之间具有组装间隙。
- 根据权利要求6所述的显示模组，其中，所述组装间隙的宽度为0.08mm至0.2mm。
- 根据权利要求1-7任一项所述的显示模组，其中，还包括偏光片，所述偏光片位于所述显示面板与所述光学胶层之间，所述偏光片的边缘与所述显示面板的边缘平齐。
- 根据权利要求8所述的显示模组，其中，还包括接地层以及至少一处导电介质，所述接地层位于所述显示面板远离所述偏光片的一侧，所述导电介质涂覆于所述显示面板的侧面、且延伸至与所述盖板朝向所述显示面板的 一侧、所述偏光片的边缘以及所述接地层的侧面接触。
- 根据权利要求9所述的显示模组，其中，所述光学胶层包括覆盖所述显示面板显示区的主体部以及与所述主体部的边缘连接的至少一个延伸部，至少一个所述延伸部与至少一处所述导电介质一一对应设置，所述延伸部填充于对应的所述导电介质与所述主体部之间。
- 根据权利要求10所述的显示模组，其中，所述延伸部远离所述主体部的边缘与所述显示面板的边缘平齐。
- 根据权利要求10所述的显示模组，其中，所述延伸部远离所述主体部的侧面凹凸不平设置。
- 根据权利要求10所述的显示模组，其中，所述延伸部在所述显示面板上的正投影呈矩形、梯形或者半椭圆形。
- 根据权利要求10-13任一项所述的显示模组，其中，所述光学胶层的主体部呈矩形，至少所述主体部的长边连接有所述延伸部。
- 一种显示装置，其中，包括如权利要求1-14任一项所述的显示模组。
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| CN115376414A (zh) | 2022-11-22 |
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