CN118092016A - Display device - Google Patents
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- CN118092016A CN118092016A CN202410276373.5A CN202410276373A CN118092016A CN 118092016 A CN118092016 A CN 118092016A CN 202410276373 A CN202410276373 A CN 202410276373A CN 118092016 A CN118092016 A CN 118092016A
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- area
- display
- display panel
- light shielding
- display area
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- 239000002390 adhesive tape Substances 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 28
- 230000001681 protective effect Effects 0.000 claims description 24
- 230000000007 visual effect Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 34
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
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Abstract
The present application provides a display device including: a backlight module; the display panel is positioned on the backlight module and comprises a display area and a non-display area positioned on at least one side of the display area; the first polaroid is positioned on the display panel and comprises a first polarized light part positioned in the display area and a second polarized light part positioned in the non-display area, wherein the second polarized light part comprises a first area and a second area, the first area is close to the display area, the second area is positioned on one side of the first area far away from the display area, and the second area is a failure area; the shading adhesive tape is connected with the backlight module and the first polaroid, and at least part of the shading adhesive tape is positioned on one side of the second polarized light part far away from the display panel and covers the second area. The display device provided by the application can effectively solve the problem of visible polarizer edge bubbles or white edges under a large visual angle.
Description
Technical Field
The application relates to the technical field of display, in particular to a display device.
Background
For a narrow-frame display device, especially for a narrow-frame display product with a width of a non-display area of a display panel less than 1.2mm, a width of a polarizer covering the non-display area on the upper layer of the display panel is generally less than or equal to 0.7mm, and a width of about 0.5mm to 0.7mm remains in the non-display area for attaching a shading tape.
Because of the limitations of the existing polaroid production process, a failure zone with a certain width is always arranged at the edge of the polaroid, and the width of the failure zone is usually 0.5-0.7 mm. As shown in fig. 1, the polarizer of the narrow frame display product also has a failure area with the width, and the failure area is close to the display area, and after the product is bonded by the cover plate, the edge bubbles or white edges of the polarizer are observed under a large viewing angle (generally, the viewing angle is larger than 45 degrees), so that yield loss is caused.
Disclosure of Invention
The application provides a display device, which is used for improving the problem that edge bubbles or white edges of a polaroid are visible under a large visual angle.
The present application provides a display device including:
a backlight module;
The display panel is positioned on the backlight module and comprises a display area and a non-display area positioned on at least one side of the display area;
The first polaroid is positioned on the display panel and comprises a first polarized light part positioned in the display area and a second polarized light part positioned in the non-display area, wherein the second polarized light part comprises a first area and a second area, the first area is close to the display area, the second area is positioned on one side, far away from the display area, of the first area, and the second area is a failure area;
The shading adhesive tape is connected with the backlight module and the first polaroid, at least part of the shading adhesive tape is positioned on one side of the second polarizing part far away from the display panel and covers the second area.
In an embodiment, a width of the second polarizing portion ranges from 0.7mm to 1.2mm along a direction from the display area to the non-display area.
In an embodiment, the width of the second area ranges from 0.5mm to 0.7mm along the direction from the display area to the non-display area.
In an embodiment, the light shielding tape includes a first light shielding tape portion and a second light shielding tape portion connected to the first light shielding tape portion, the first light shielding tape portion is located at a side of the second polarizing portion away from the display panel, and the second light shielding tape portion is located at a side of the backlight module away from the display panel;
and along the direction from the display area to the non-display area, the width of the overlapping part of the orthographic projection of the first shading adhesive tape part on the display panel and the orthographic projection of the second polarizing part on the display panel ranges from 0.7mm to 1mm.
In an embodiment, the display panel includes an array substrate and a counter substrate that are stacked, and the counter substrate is located at a side of the array substrate away from the backlight module;
The display device further comprises a shading layer, wherein the shading layer is positioned between the array substrate and the opposite substrate and is positioned in the non-display area, and the orthographic projection of the second polarizing part on the array substrate covers the orthographic projection of the shading layer on the array substrate.
In an embodiment, the width of the light shielding layer ranges from 0.7mm to 1.2mm along the direction from the display area to the non-display area.
In an embodiment, the display device further includes a polarizer protective film including a first sub-protective film;
And the front projection of the first shading adhesive tape part on the display panel and the front projection of the second polarizing part on the display panel are overlapped with the front projection of the first sub-protective film on the display panel.
In an embodiment, the polarizer protection film further includes a second sub protection film, wherein the orthographic projection of the second sub protection film on the display panel covers the orthographic projection of the first polarizing portion on the display panel and the orthographic projection of the first area of the second polarizing portion on the display panel, and the second sub protection film is removed after the light shielding tape is attached.
In an embodiment, the width of the non-display area ranges from 0.7mm to 1.2mm along the direction from the display area to the non-display area.
In an embodiment, the display device further includes:
The second polaroid is positioned at one side of the display panel, which is close to the backlight module;
and the cover plate is positioned at one side of the display panel far away from the first polaroid.
The application provides a display device, which is characterized in that the width of a first polaroid (namely a second polarized light part) positioned in a non-display area is increased, so that a second area (namely a failure area) is far away from the display area, and meanwhile, a shading adhesive tape is arranged on one side of the first polaroid far away from a display panel and covers the second area, namely, the failure area and edge bubbles are shaded by the shading adhesive tape, so that the problem of visible edge bubbles or white edges of the polaroid under a large visual angle is solved.
Drawings
In order to more clearly illustrate the embodiments or the technical solutions in the prior art, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional view of a display device according to the prior art;
fig. 2 is a schematic cross-sectional view of a display device according to an embodiment of the application;
FIG. 3 is a schematic plan view of a polarizer protective film according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a display device with a polarizer protective film removed;
Fig. 5 is a schematic view of a display device with a polarizer protective film removed according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless specifically defined otherwise.
The present application may repeat reference numerals and/or letters in the various examples, and is for the purpose of simplicity and clarity, and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
As shown in fig. 2, the cross-sectional structure of a display device provided by the present application includes a backlight module 100, a display panel 200 disposed on the backlight module 100, a first polarizer 300 disposed on the display panel 200, and a light shielding tape 400 connecting the backlight module 100 and the first polarizer 300.
The backlight module 100 includes a back plate 110, a reflective sheet 120, a light guide plate 130, an optical film 140, and a frame 150. The back plate 110 comprises a bottom plate 101 and a side plate 102, and the bottom plate 101 and the side plate 102 enclose a containing cavity; the reflecting sheet 120, the light guide plate 130, and the optical film 140 are sequentially stacked in the accommodating cavity, and are used for providing a backlight source for the display device; the glue frame 150 is disposed between the side plate 102 and the side edge of the light guide plate 130, and is used for supporting the display panel 200.
The display panel 200 is disposed on the light emitting side of the backlight module 100, and the display panel 200 includes a display area and a non-display area NA (only the non-display area NA is shown in a cross-sectional view in fig. 2, and the display area is located on the left side of the non-display area in fig. 2, not shown) located on at least one side of the display area. The display panel 200 includes an array substrate 210 and a counter substrate 220 that are stacked, the array substrate 210 is located at a light emitting side of the backlight module 100, and the counter substrate 220 is located at a side of the array substrate 210 away from the backlight module 100. The display panel 200 may be, but is not limited to, a liquid crystal display panel 200, and the opposite substrate 220 may be, but is not limited to, a color film substrate.
The first polarizer 300 is located at a side of the display panel 200 away from the backlight module 100, and the first polarizer 300 covers the display area and extends to the non-display area. The first polarizer 300 includes a first polarizing portion located in the display area and a second polarizing portion 310 located in the non-display area, wherein the second polarizing portion 310 includes a first area NB and a second area NC, the first area is close to the display area, the second area is located at a side of the first area away from the display area, and the second area is a failure area. In the present application, the area where the portion with a certain width and no polarization exists at the edge of the first polarizer 300 is defined as the failure area, which is caused by the limitation of the production process.
Further, the width of the second area ranges from 0.5mm to 0.7mm along the direction from the display area to the non-display area, i.e. the X direction in the figure. In the existing size polarizer process, the width of the failure area at the edge of the polarizer is usually 0.5mm to 0.7mm, and the second area is the failure area of the first polarizer 300, and the failure area refers to the area where the first polarizer does not have or loses polarization.
One end of the shading tape 400 is connected to the backlight module 100, and the other end is connected to the first polarizer 300, so as to fix the display panel 200 and the backlight module 100. At least a part of the light shielding tape 400 is located at a side of the second polarizing portion 310 away from the display panel 200 and covers the second area, and functions to shield light on the one hand and to shield bubbles at the edge of the first polarizer 300 on the other hand. The masking tape 400 may also be used for antistatic and the like.
Further, the display device further includes a second polarizer 500, where the second polarizer 500 is located at a side of the display panel 200 near the backlight module 100 and is disposed opposite to the first polarizer 300.
Further, the display device further includes a cover 600, where the cover 600 is located at a side of the display panel 200 away from the first polarizer 300 to protect the first polarizer 300, the display panel 200, the second polarizer 500 and the backlight module 100.
In this embodiment, the display device is a narrow-frame display product, and the width of the non-display area ranges from 0.7mm to 1.2mm along the direction from the display area to the non-display area, i.e., the X direction in the figure.
As shown in fig. 1, the width of the first polarizer 300 in the non-display area is generally less than or equal to 0.7mm, and the width of the failure area at the edge of the first polarizer 300 is generally 0.5mm to 0.7mm, that is, the failure area of the first polarizer 300 in the prior art is almost at the edge of the display area, when the width of the first polarizer 300 in the non-display area is less than 0.5mm, the failure area of the first polarizer 300 may even extend to the display area, so that the edge bubbles or white phenomenon of the first polarizer 300 may be seen when viewing at a large viewing angle. In the present application, by increasing the width of the first polarizer 300 located in the non-display area, so that the second area (failure area) is spaced from the display area by the first area, the increased width of the first area can make the failure area of the first polarizer 300 separate from the display area, thereby avoiding the problem that the edge bubbles or white edges of the first polarizer 300 are visible at a large viewing angle.
In addition, the display device of the present application is a narrow-frame display product, the width of the non-display area is narrower, when the width of the first polarizer 300 covering the non-display area is increased, the width of the remaining light-shielding tape 400 is reduced, which affects the stability of fixing the light-shielding tape 400, and meanwhile, since there is a bubble at the joint between the edge of the second area and the display panel 200, the light-shielding tape 400 is attached to the side of the second polarizing portion 310 away from the display panel 200, on one hand, the effective attaching width of the light-shielding tape 400 can be ensured, and meanwhile, the failure area and the edge bubble can be shielded, so as to avoid the influence on the display effect of the display device.
In an embodiment, as shown in fig. 2, the width of the second polarizing portion 310 ranges from 0.7mm to 1.2mm along the direction from the display area to the non-display area, i.e., the X direction in the drawing. Compared with the width (less than or equal to 0.7 mm) of the first polarizer in the non-display area in the prior art, the width of the second polarizing portion 310 in the non-display area is enlarged, so that the failure area of the first polarizer 300 is far away from the display area, and the problem that bubbles or white edges at the edge of the first polarizer 300 are visible in a large viewing angle is avoided.
In an embodiment, as shown in fig. 2, the light shielding tape 400 includes a first light shielding tape portion 410 and a second light shielding tape portion 420 connected to the first light shielding tape portion 410, the first light shielding tape portion 410 is located at a side of the second polarizing portion 310 away from the display panel 200, and the second light shielding tape portion 420 is located at a side of the backlight module 100 away from the display panel 200. Further, the light shielding tape 400 may further include a third light shielding tape part 430, wherein the second light shielding tape part 420 is located at a side of the side plate 102 away from the display panel 200, and the third light shielding tape part 430 is connected to the second light shielding tape part 420 and is located at a side of the bottom plate 101 away from the display panel 200.
As shown in fig. 2, along the direction from the display area to the non-display area, i.e., the X direction in the drawing, the width of the overlapping portion between the front projection of the first light-shielding tape portion 410 on the display panel 200 and the front projection of the second polarizing portion 310 on the display panel 200 ranges from 0.7mm to 1mm, i.e., the width of the first light-shielding tape portion 410 of the light-shielding tape 400 covering the second polarizing portion 310 may be greater than or equal to the width of the second area, so as to ensure that the failure area and the edge bubbles of the first polarizer 300 are shielded. The width of the first light shielding tape portion 410 of the light shielding tape 400 covering the second polarizing portion 310 may be greater than the width of the second region, so that the adhesion area between the first light shielding tape portion 410 and the second polarizing portion 310 may be increased, and the connection stability between the light shielding tape 400 and the first polarizer 300 may be increased.
In an embodiment, as shown in fig. 2, the display device further includes a light shielding layer 230, the light shielding layer 230 is located between the array substrate 210 and the opposite substrate 220 and is located in the non-display area, the front projection of the second polarizing portion 310 on the array substrate 210 covers the front projection of the light shielding layer 230 on the array substrate 210, and the second polarizing portion 310 covers the light shielding layer 230, so as to play a role in adjusting the emergent light. The material of the light shielding layer 230 may be, but is not limited to, black photoresist (BM).
Further, the width of the light shielding layer 230 ranges from 0.7mm to 1.2mm along the direction from the display area to the non-display area, i.e., the X direction in the drawing. The light shielding layer 230 may cover the entire non-display area or a part of the non-display area according to the process requirements of different display panels 200.
In one embodiment, as shown in fig. 2 to 5, the display device further includes a polarizer protective film 700 for protecting the first polarizer 300. As shown in fig. 3, the polarizer protective film 700 includes a first sub protective film 710 and a second sub protective film 720, the first sub protective film 710 being disposed around the second sub protective film 720, or the first sub protective film 710 being located at least one side of the second sub protective film 720.
As shown in fig. 2, the first sub-protective film 710 is located between the first light shielding tape part 410 and the second polarizing part 310. The front projection of the first light shielding tape part 410 on the display panel 200 overlaps the front projection of the second polarizing part 310 on the display panel 200 and the front projection of the first sub-protective film 710 on the display panel 200. Further, the width of the first sub-protective film 710 is in the range of 0.7mm to 1mm along the direction from the display area to the non-display area, i.e., the X direction in the drawing.
As shown in fig. 3 to 4, the front projection of the second sub-protective film 720 on the display panel 200 covers the front projection of the first polarizing portion on the display panel 200 and the front projection of the first region of the second polarizing portion 310 on the display panel 200, and the second sub-protective film 720 is removed after the light shielding tape 400 is attached.
The polarizer protective film 700 covers a side surface of the first polarizer 300, which is far away from the display panel 200, to protect the first polarizer 300, and after the light shielding tape 400 is attached to the first polarizer 300 and before the subsequent assembly process, the polarizer protective film 700 on the surface of the first polarizer 300 needs to be removed, but in the present application, since the first light shielding tape portion 410 of the light shielding tape 400 is attached to the polarizer protective film 700, when the whole protective film on the first polarizer 300 is torn off, the first light shielding tape portion 410 of the light shielding tape 400 is easily lifted up or separated from the first polarizer 300. In the present application, the polarizer protective film 700 is divided into two parts, and only the second sub protective film 720 is removed after the light shielding tape 400 is attached, while the first sub protective film 710 between the first light shielding tape part 410 and the second polarizing part 310 is maintained, so that the influence on the light shielding tape 400 attached above the first polarizer 300 when the polarizer protective film is removed can be avoided. Fig. 4 is a schematic diagram before removing a polarizer protective film of a display device according to an embodiment of the present application, and fig. 5 is a schematic diagram after removing a polarizer protective film of a display device according to an embodiment of the present application.
In summary, the present application provides a display device, in which the width of a first polarizer (i.e. a second polarizing portion) located in the non-display area is increased, so that a second area (i.e. a failure area) is far away from the display area, and a light shielding tape is disposed on a side of the first polarizer far away from the substrate and covers the second area, so that the failure area and the edge bubbles are shielded by the light shielding tape, thereby improving the problem of edge bubbles or white edges of the polarizer visible under a large viewing angle.
In summary, although the present application has been described in terms of the preferred embodiments, the above-mentioned embodiments are not intended to limit the application, and those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the application, so that the scope of the application is defined by the appended claims.
Claims (10)
1. A display device, comprising:
a backlight module;
The display panel is positioned on the backlight module and comprises a display area and a non-display area positioned on at least one side of the display area;
The first polaroid is positioned on the display panel and comprises a first polarized light part positioned in the display area and a second polarized light part positioned in the non-display area, wherein the second polarized light part comprises a first area and a second area, the first area is close to the display area, the second area is positioned on one side, far away from the display area, of the first area, and the second area is a failure area;
The shading adhesive tape is connected with the backlight module and the first polaroid, at least part of the shading adhesive tape is positioned on one side of the second polarizing part far away from the display panel and covers the second area.
2. The display device according to claim 1, wherein a width of the second polarizing portion is in a range of 0.7mm to 1.2mm in a direction from the display region to the non-display region.
3. The display device according to claim 1, wherein a width of the second region ranges from 0.5mm to 0.7mm in a direction from the display region to the non-display region.
4. The display device according to claim 1, wherein the light shielding tape includes a first light shielding tape portion and a second light shielding tape portion connected to the first light shielding tape portion, the first light shielding tape portion being located on a side of the second polarizing portion away from the display panel, the second light shielding tape portion being located on a side of the backlight module away from the display panel;
and along the direction from the display area to the non-display area, the width of the overlapping part of the orthographic projection of the first shading adhesive tape part on the display panel and the orthographic projection of the second polarizing part on the display panel ranges from 0.7mm to 1mm.
5. The display device according to any one of claims 1 to 4, wherein the display panel includes an array substrate and a counter substrate which are stacked, the counter substrate being located on a side of the array substrate away from the backlight module;
The display device further comprises a shading layer, wherein the shading layer is positioned between the array substrate and the opposite substrate and is positioned in the non-display area, and the orthographic projection of the second polarizing part on the array substrate covers the orthographic projection of the shading layer on the array substrate.
6. The display device according to claim 5, wherein a width of the light shielding layer is in a range of 0.7mm to 1.2mm in a direction from the display region to the non-display region.
7. The display device of claim 4, further comprising a polarizer protective film comprising a first sub-protective film;
And the front projection of the first shading adhesive tape part on the display panel and the front projection of the second polarizing part on the display panel are overlapped with the front projection of the first sub-protective film on the display panel.
8. The display device of claim 7, wherein the polarizer protective film further comprises a second sub-protective film, an orthographic projection of the second sub-protective film on the display panel covering an orthographic projection of the first polarizing portion on the display panel and an orthographic projection of the first region of the second polarizing portion on the display panel, the second sub-protective film being removed after attaching the light shielding tape.
9. The display device according to any one of claims 1 to 4, wherein a width of the non-display region in a direction from the display region to the non-display region ranges from 0.7mm to 1.2mm.
10. The display device according to any one of claims 1 to 4, further comprising:
the second polaroid is positioned at one side of the display panel, which is close to the backlight module; and
And the cover plate is positioned at one side of the display panel far away from the first polaroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410276373.5A CN118092016A (en) | 2024-03-11 | 2024-03-11 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410276373.5A CN118092016A (en) | 2024-03-11 | 2024-03-11 | Display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118092016A true CN118092016A (en) | 2024-05-28 |
Family
ID=91148743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410276373.5A Pending CN118092016A (en) | 2024-03-11 | 2024-03-11 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118092016A (en) |
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2024
- 2024-03-11 CN CN202410276373.5A patent/CN118092016A/en active Pending
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