CN219285554U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN219285554U CN219285554U CN202320179647.XU CN202320179647U CN219285554U CN 219285554 U CN219285554 U CN 219285554U CN 202320179647 U CN202320179647 U CN 202320179647U CN 219285554 U CN219285554 U CN 219285554U
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- frame glue
- display panel
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- thin film
- film transistor
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Abstract
The application discloses display panel and display device, display panel includes: the color filter substrate and the thin film transistor array substrate are sequentially stacked from bottom to top; the first frame glue is positioned at the periphery of the first liquid crystal layer and surrounds the first liquid crystal layer; the black matrix is positioned above the first frame glue and covers the first frame glue; the backlight module is positioned below the color array substrate and comprises a light reflecting layer, a first glass substrate, a light diffusion layer and a first wire grid polaroid which are sequentially laminated from bottom to top, and a backlight array coated by the light diffusion layer. The ultraviolet light of solidifying first frame glue in this application can follow the colored filter base plate side illumination of first frame glue below for first frame glue fully cures. The backlight module can enable the display device comprising the display panel to have higher contrast ratio and better display effect.
Description
Technical Field
The present utility model relates to the field of liquid crystal display technology, and in particular, to a display panel and a display device.
Background
The liquid crystal display has the advantages of low power consumption, small volume, light weight, ultrathin screen and the like, and is widely applied to various fields. The liquid crystal display generally includes a color filter substrate, a thin film transistor array substrate, a liquid crystal layer therebetween, and a frame adhesive curing the two substrates and surrounding the liquid crystal layer.
Currently, ultraviolet (UV) curing of the bezel adhesive is generally employed. Since the color filter substrate side is blocked by the black matrix, ultraviolet light needs to be irradiated from the thin film transistor array substrate side at the time of curing. In general, the thin film transistor array substrate and the frame are glued to form a grid shape to ensure that a certain proportion of light passing area exists in the metal wiring area at the side of the thin film transistor array substrate, and the grid-shaped metal wiring cannot have wider lines and patterns, so that the frame glue is fully cured. Then, the above solution needs to design smaller metal line width and smaller metal wiring with smaller pattern area in the area near the bonding contact between the thin film transistor array substrate and the frame, which can cause the increase of the resistance of the metal wiring, thereby increasing the load of the driving signal on the metal wiring.
Disclosure of Invention
Accordingly, an object of the present utility model is to provide a display panel and a display device, which solve the problems in the prior art.
According to a first aspect of the present utility model, there is provided a display panel comprising:
the color filter substrate and the thin film transistor array substrate are sequentially stacked from bottom to top;
the first frame glue is positioned at the periphery of the first liquid crystal layer and surrounds the first liquid crystal layer; and
the black matrix is positioned above the first frame glue and covers the first frame glue; and
the backlight module is positioned below the color filter substrate and comprises a light reflecting layer, a first glass substrate and a first wire grid polaroid which are sequentially laminated from bottom to top, and a light diffusion layer positioned between the first glass substrate and the first wire grid polaroid; and a backlight array over the first glass substrate and covered by the light diffusion layer.
Optionally, the black matrix includes a first black matrix located between the first frame glue and the thin film transistor array substrate.
Optionally, at least the backlight array and the first wire grid polarizer have a perpendicular projection that does not overlap with a perpendicular projection of the first frame glue.
Optionally, the color filter substrate includes a color resist array, and a vertical projection of the color resist array does not overlap with a vertical projection of the first frame glue.
Optionally, the method further comprises:
and the polaroid is positioned above the thin film transistor array substrate.
Optionally, the method further comprises:
the polarizing structure, the second liquid crystal layer and the second glass substrate are arranged between the thin film transistor array substrate and the polaroid in a laminated manner from bottom to top; and
the second frame glue is positioned between the thin film transistor array substrate and the second glass substrate and surrounds the second liquid crystal layer and the polarizing structure, the vertical projection of the second frame glue is at least partially overlapped with the vertical projection of the first frame glue,
the black matrix comprises a second black matrix positioned between the second frame glue and the polaroid.
Optionally, the polarizing structure is a second wire grid polarizer.
Optionally, the vertical projection of the second frame glue overlaps with the vertical projection of the first frame glue, and the second black matrix further covers the second frame glue.
Optionally, the backlight array includes a plurality of minileds.
According to a second aspect of the present utility model, there is provided a display device comprising a display panel as described above.
According to the display panel and the display device, the black matrix is arranged above the first frame glue and covers the first frame glue in the display panel, so that ultraviolet light can be irradiated from the side of the color filter substrate below the first frame glue when the first frame glue is cured, and the first frame glue is fully cured. And further, the technical problem that the first frame glue is incompletely cured due to shielding of metal wiring in the thin film transistor array substrate caused by incidence of ultraviolet light from the side of the thin film transistor array substrate is avoided. Further, the display panel of the present utility model further includes a backlight module disposed below the color array substrate, wherein the light reflection layer can emit light emitted downward from the backlight source to reduce light loss. Further, the light emitted from the backlight array becomes a uniform surface light source after passing through the light diffusion layer, and becomes linearly polarized light after passing through the first wire grid polarizer. The display device comprising the display panel has higher contrast and better display effect.
Further, the backlight array includes a plurality of miniLEDs, so that the overall thickness of the display panel and the display device is thinner.
Further, the vertical projection of the backlight array and the first wire grid polarizer does not overlap with the vertical projection of the first frame glue edge. The vertical projection of the color resistance array in the color filter substrate is not overlapped with the vertical projection of the first frame glue edge. So that the first frame glue is cured more fully.
Further, the display panel is further provided with a polarizing structure, a second liquid crystal layer, a second glass substrate and a second frame glue, wherein the polarizing structure, the second liquid crystal layer, the second glass substrate and the second frame glue are arranged between the thin film transistor array substrate and the second glass substrate in sequence from bottom to top, and the second frame glue is arranged between the thin film transistor array substrate and the second glass substrate and surrounds the second liquid crystal layer and the polarizing structure. The display panel is the LCD panel and the CP (controllable panel) panel which are arranged in a stacked mode, the CP (controllable panel) panel is additionally arranged, wide-narrow visual angle switching can be achieved, and user experience of the display panel and the display device is improved.
Drawings
The above and other objects, features and advantages of the present utility model will become more apparent from the following description of embodiments of the present utility model with reference to the accompanying drawings.
Fig. 1 shows a schematic cross-sectional view of a display panel according to an embodiment of the utility model.
Fig. 2 shows a schematic cross-sectional view of another display panel according to an embodiment of the utility model.
Detailed Description
The present utility model is described below based on examples, but the present utility model is not limited to only these examples. In the following detailed description of the present utility model, certain specific details are set forth in detail. The present utility model will be fully understood by those skilled in the art without the details described herein. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the nature of the utility model.
It should be understood that the words "comprise," "comprising," and the like throughout the specification and claims are to be interpreted in an inclusive rather than an exclusive or exhaustive sense unless the context clearly requires otherwise; that is, it is the meaning of "including but not limited to". The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
Fig. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the utility model, referring to fig. 1, the display panel 100 includes a color filter substrate 110 and a thin film transistor array substrate 120 stacked in sequence from bottom to top, and a first liquid crystal layer 130 and a first frame glue 140 between the color filter substrate 110 and the thin film transistor array substrate 120. The first frame glue 140 is located at the periphery of the first liquid crystal layer 130 and surrounds the first liquid crystal layer 130. The black matrix is located above the first frame glue 140 and covers the first frame glue 140. Further, the black matrix includes a first black matrix 150 disposed between the first frame glue 140 and the tft array substrate 120, so as to perform a shading function of the entire display panel. Further, the color filter substrate 110 includes a color block array composed of a plurality of color blocks 111, and a vertical projection of the color block array is not overlapped with a vertical projection of the first frame glue 140. Further, the tft array substrate 120 includes a plurality of tfts covering the first lc layer 130 and metal traces located at the edge regions.
Further, the first black matrix 150 is located between the first frame glue 140 and the tft array substrate 120. So that when the first frame glue 140 is cured, ultraviolet light (UV light) can be incident from the side of the color filter substrate 110 below the first frame glue 140 to avoid being blocked by the first black matrix 150, and the purpose of fully curing the first frame glue 140 can be achieved.
Further, the display panel 100 further includes a backlight module 160 disposed below the color array substrate 110. The backlight module 160 includes a light reflection layer 161, a first glass substrate 162, a first wire grid polarizer 163, a light diffusion layer 164 between the first glass substrate 162 and the first wire grid polarizer 163, and a backlight array over the first glass substrate 162 and covered by the light diffusion layer 164. Wherein at least the backlight array and the perpendicular projection of the first wire grid polarizer 163 do not overlap with the perpendicular projection of the first frame glue 140. Further, the light diffusion layer 164 is an organic layer. The backlight array includes a plurality of micro-sized minileds 165 arranged in an array, so that the overall thickness of the display panel and the display device is thinner. Illustratively, the light reflecting layer 161 is, for example, an aluminum electrode, and is formed on the lower surface of the first glass substrate 162. The light reflection layer 161 can emit light emitted downward from the backlight source to reduce light loss, the light emitted from the backlight source array is diffused by the light diffusion layer 164 to become a uniform surface light source, and the light is changed into linearly polarized light after passing through the first linear grid polarizing plate 163, so that the contrast ratio of the display device comprising the display panel is higher and the display effect is better.
Further, the display panel 100 further includes a polarizer 170 over the thin film transistor array substrate 120. Further, the display panel 100 further includes a passivation layer 180 between the color filter substrate 110 and the backlight module 160.
Fig. 2 is a schematic cross-sectional view of another display panel according to an embodiment of the utility model, referring to fig. 2, a schematic cross-sectional view of a display panel 200 along the AA line in fig. 1 is shown. The display panel 200 includes a color filter substrate 110 and a thin film transistor array substrate 120, a first liquid crystal layer 130 and a first frame glue 140 between the color filter substrate 110 and the thin film transistor array substrate 120, and a black matrix above the first frame glue 140 and covering the first frame glue 140. The first frame glue 140 is located at the periphery of the first liquid crystal layer 130 and surrounds the first liquid crystal layer 130. Further, the color filter substrate 110 includes a color block array composed of a plurality of color blocks 111, and a vertical projection of the color block array is not overlapped with a vertical projection of the first frame glue 140. Further, the tft array substrate 120 includes a plurality of tfts covering the first lc layer 130 and metal traces located at the edge regions.
Further, the display panel 200 further includes a backlight module 160 disposed below the color array substrate 110. The backlight module 160 includes a light reflection layer 161, a first glass substrate 162, a first wire grid polarizer 163, a light diffusion layer 164 between the first glass substrate 162 and the first wire grid polarizer 163, and a backlight array over the first glass substrate 162 and covered by the light diffusion layer 164. Wherein at least the backlight array and the perpendicular projection of the first wire grid polarizer 163 do not overlap with the perpendicular projection of the first frame glue 140. Further, the light diffusion layer 164 is an organic layer. The backlight array includes a plurality of micro-sized minileds 165 arranged in an array, so that the overall thickness of the display panel and the display device is thinner. Illustratively, the light reflecting layer 161 is, for example, an aluminum electrode, and is formed on the lower surface of the first glass substrate 162. The light reflection layer 161 can emit light emitted downward from the backlight source to reduce light loss, the light emitted from the backlight source array is diffused by the light diffusion layer 164 to become a uniform surface light source, and the light is changed into linearly polarized light after passing through the first linear grid polarizing plate 163, so that the contrast ratio of the display device comprising the display panel is higher and the display effect is better.
Further, the display panel 200 further includes a polarizer 170 over the thin film transistor array substrate 120. Further, the display panel 200 further includes a passivation layer 180 between the color filter substrate 110 and the backlight module 160.
Further, the display panel 200 further includes a polarizing structure 210, a second liquid crystal layer 220, a second glass substrate 230, and a second frame glue 240, which is disposed between the thin film transistor array substrate 120 and the polarizer 170 and is disposed between the thin film transistor array substrate 120 and the second glass substrate in a stacked manner from bottom to top, and surrounds the second liquid crystal layer 220 and the polarizing structure 210. Wherein, the vertical projection of the second frame glue 240 at least partially overlaps with the vertical projection of the first frame glue 140. Further, the vertical projection of the second frame glue 240 completely overlaps the vertical projection of the first frame glue 140, so that the display panel 200 is narrower. Further, the black matrix includes a second black matrix 250 located between the second frame glue 240 and the second glass substrate 230, the vertical projection of the second frame glue 240 overlaps with the vertical projection of the first frame glue 140, and the second black matrix 250 covers the first frame glue 140 and the second frame glue 240 to play a role of shading the whole display panel 200. Further, the polarizing structure 210 is, for example, a second wire grid polarizer, so as to achieve a polarizing effect.
The display panel 200 includes an LCD panel and a CP panel which are stacked. The layer structure above the tft array substrate 120 forms a CP panel to realize the wide-narrow viewing angle switching function. The layer structure under the thin film transistor array substrate 120 and including the thin film transistor array substrate 120 constitutes an LCD panel. The LCD panel and the CP panel share the second glass substrate 230 and the polarizer 170, so that the overall thickness of the display panel 200 is thinner. Further, after the CP panel assembly is completed, UV light is irradiated from below to cure the second bezel adhesive 240. And then the CP panel and the LCD panel are assembled, and finally ultraviolet light (UV light) can be injected from the side of the backlight module 160 to achieve the aim of fully curing the first frame glue.
It should be noted that, in an alternative embodiment, when the first frame glue and the second frame glue are black frame glue, the black frame glue plays a role in shielding light of the whole display panel, and the black matrix may be omitted in the display panel.
Correspondingly, the utility model further provides a display device comprising the display panel according to any embodiment.
According to the display panel and the display device, the black matrix is arranged above the first frame glue and covers the first frame glue in the display panel, so that ultraviolet light can be irradiated from the side of the color filter substrate below the first frame glue when the first frame glue is cured, and the first frame glue is fully cured. And further, the technical problem that the first frame glue is incompletely cured due to shielding of metal wiring in the thin film transistor array substrate caused by incidence of ultraviolet light from the side of the thin film transistor array substrate is avoided. Further, the vertical projection of the backlight array and the first wire grid polarizer does not overlap with the vertical projection of the first frame glue edge. The vertical projection of the color resistance array in the color filter substrate is not overlapped with the vertical projection of the first frame glue edge. So that the first frame glue is cured more fully.
Further, the display panel of the present utility model further includes a backlight module disposed below the color array substrate, wherein the light reflection layer can emit light emitted downward from the backlight source to reduce light loss. Further, the light emitted from the backlight array becomes a uniform surface light source after passing through the light diffusion layer, and becomes linearly polarized light after passing through the first wire grid polarizer. The display device comprising the display panel has higher contrast and better display effect. Further, the backlight array includes a plurality of miniLEDs, so that the overall thickness of the display panel and the display device is thinner.
Further, the display panel is further provided with a polarizing structure, a second liquid crystal layer, a second glass substrate and a second frame glue, wherein the polarizing structure, the second liquid crystal layer, the second glass substrate and the second frame glue are arranged between the thin film transistor array substrate and the second glass substrate in sequence from bottom to top, and the second frame glue is arranged between the thin film transistor array substrate and the second glass substrate and surrounds the second liquid crystal layer and the polarizing structure. The display panel is the LCD panel and the CP panel which are arranged in a laminated mode, the CP panel is additionally arranged, the wide-narrow visual angle switching can be realized, and the user experience of the display panel and the display device is improved.
Finally, it should be noted that: embodiments in accordance with the present utility model, as described above, are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. A display panel, comprising:
the color filter substrate and the thin film transistor array substrate are sequentially stacked from bottom to top;
the first frame glue is positioned at the periphery of the first liquid crystal layer and surrounds the first liquid crystal layer;
the black matrix is positioned above the first frame glue and covers the first frame glue; and
the backlight module is positioned below the color filter substrate and comprises a light reflecting layer, a first glass substrate and a first wire grid polaroid which are sequentially laminated from bottom to top, and a light diffusion layer positioned between the first glass substrate and the first wire grid polaroid; and a backlight array over the first glass substrate and covered by the light diffusion layer.
2. The display panel of claim 1, wherein the black matrix comprises a first black matrix between the first bezel glue and the thin film transistor array substrate.
3. The display panel of claim 1, wherein at least a perpendicular projection of the backlight array and the first wire grid polarizer does not overlap a perpendicular projection of the first frame glue.
4. The display panel of claim 3, wherein the color filter substrate comprises a color resist array, and wherein a vertical projection of the color resist array does not overlap a vertical projection of the first frame glue.
5. The display panel of claim 4, further comprising:
and the polaroid is positioned above the thin film transistor array substrate.
6. The display panel of claim 5, further comprising:
the polarizing structure, the second liquid crystal layer and the second glass substrate are arranged between the thin film transistor array substrate and the polaroid in a laminated manner from bottom to top; and
the second frame glue is positioned between the thin film transistor array substrate and the second glass substrate and surrounds the second liquid crystal layer and the polarizing structure, the vertical projection of the second frame glue is at least partially overlapped with the vertical projection of the first frame glue,
the black matrix comprises a second black matrix positioned between the second frame glue and the second glass substrate.
7. The display panel of claim 6, wherein the polarizing structure is a second wire grid polarizer.
8. The display panel of claim 6, wherein a vertical projection of the second bezel glue overlaps a vertical projection of the first bezel glue, the second black matrix further covering the second bezel glue.
9. The display panel of claim 3, wherein the backlight array comprises a plurality of minileds.
10. A display device comprising the display panel of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320179647.XU CN219285554U (en) | 2023-02-10 | 2023-02-10 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320179647.XU CN219285554U (en) | 2023-02-10 | 2023-02-10 | Display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219285554U true CN219285554U (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320179647.XU Active CN219285554U (en) | 2023-02-10 | 2023-02-10 | Display panel and display device |
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|---|---|
| CN (1) | CN219285554U (en) |
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2023
- 2023-02-10 CN CN202320179647.XU patent/CN219285554U/en active Active
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