CN209911726U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN209911726U CN209911726U CN201920633803.9U CN201920633803U CN209911726U CN 209911726 U CN209911726 U CN 209911726U CN 201920633803 U CN201920633803 U CN 201920633803U CN 209911726 U CN209911726 U CN 209911726U
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Abstract
The application relates to a display panel and a display device, wherein the display panel comprises a substrate, the substrate comprises a display area, a non-display area surrounding the display area, a filler and frame sealing glue, and the non-display area comprises a frame glue area and a spacer area positioned between the frame glue area and the display area; the filler is arranged in the interval area; coating the frame sealing glue on the frame sealing glue area; the height of the filler is less than that of the frame sealing glue. According to the display panel, the filler is arranged in the interval area between the frame sealant area and the display area of the substrate, so that the filler can occupy the gap between the frame sealant and the liquid crystal of the boxed substrate, and the generation of liquid crystal bubbles is avoided.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to a display panel and a display device.
Background
A display device generally includes an array substrate, a color filter substrate, and a liquid crystal molecular layer sandwiched between the array substrate and the color filter substrate. The forming of the display device needs to coat the frame sealing glue on the array substrate or the color film substrate, and then the array substrate and the color film substrate are combined, so that the sealing effect of the frame sealing glue can be influenced and the performance of the display device can be influenced if the frame sealing glue of the array substrate or the color film substrate is contacted with the liquid crystal in the forming process, therefore, the dripping range of the liquid crystal is smaller than the range surrounded by the frame sealing glue, a gap is formed between the liquid crystal and the frame sealing glue, and if the gap is large, liquid crystal bubbles can be generated on the box substrate and the using effect of the display device can be influenced.
SUMMERY OF THE UTILITY MODEL
Accordingly, it is desirable to provide a display panel and a display device, which solve the problem of liquid crystal bubbles generated on a cell substrate due to a large gap between a liquid crystal and a sealant.
A display panel comprises a substrate, wherein the substrate comprises a display area, a non-display area surrounding the display area, a filler and frame sealing glue, and the non-display area comprises a frame glue area and a spacing area between the frame glue area and the display area; the filler is arranged in the spacer region; coating the frame sealing glue on the frame sealing glue area; the height of the filler is smaller than that of the frame sealing glue.
In one embodiment, the filler includes a black matrix.
In one embodiment, the filler includes a black matrix and a color resistor, and the color resistor is one or more of a red color resistor, a green color resistor and a blue color resistor.
In one embodiment, the black matrix is located between the color resistors and the spacers.
In one embodiment, the cross-section of the filler is rectangular or saw-toothed.
In one embodiment, the substrate further includes an alignment film formed on the spacer region and the display region.
In one embodiment, the edge of the alignment film is located at the spacer.
In one embodiment, the substrate is a color film substrate.
In one embodiment, the substrate is an array substrate.
A display device comprises two oppositely-packed substrates, wherein the two oppositely-packed substrates are the display panels, one of the display panels is a color film substrate, the other display panel is an array substrate, and a liquid crystal layer is arranged between the color film substrate and the array substrate.
According to the display panel and the display device, the filler is arranged in the space between the frame sealant area of the substrate and the display area, so that the filler can occupy the gap between the frame sealant of the boxed substrate and the liquid crystal, and the generation of liquid crystal bubbles is avoided.
Drawings
FIG. 1 is a top view of a display panel according to an embodiment;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment;
fig. 3 is a schematic structural diagram of a display panel according to another embodiment;
fig. 4 is a schematic structural diagram of a display device according to an embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The present application will be further described with reference to the drawings and examples.
Referring to fig. 1 to 3, an embodiment of the present application provides a display panel, where the display panel includes a substrate 12, and the substrate 12 includes a display area 121 and a non-display area 122 surrounding the display area 121. The non-display area 122 includes a sealant area 1221 and a spacer area 1222 between the sealant area 1221 and the display area 121. The substrate 12 further includes a filler 13 and a sealant 14. The filler 13 is disposed at the spacer 1222. The frame sealing adhesive 14 is coated on the frame sealing area 1221. The height of the filler 13 is less than that of the frame sealing glue 14.
The substrate 12 may be one of an array substrate, a color filter substrate, a substrate similar to an array substrate, or a substrate similar to a color filter substrate.
The display area 121 is used for displaying a picture, and the non-display area 122 is a light-shielding area, so that backlight of the backlight module is prevented from being transmitted out of the non-display area 122, and the display effect of the display panel is ensured. The frame glue area 1221 is used for coating the frame sealing glue 14 and is adhered to the frame glue area 1221 of another substrate 12, so as to complete the box matching of the two substrates 12. The spacer 1222 is also a gap between the frame sealing adhesive 14 and the liquid crystal after the two substrates 12 are formed into a box, and if the range of the gap is large, liquid crystal bubbles are easily generated.
The filler 13 is a substance that does not chemically react with the liquid crystal. The filler 13 may include a black matrix, or may include a black matrix and a color resistor, where the color resistor may be one or more of a red color resistor, a green color resistor, and a blue color resistor. The black matrix may be disposed on the spacers 1222 by a sputtering method. The color resistors can be disposed in the spacers 1222 by photolithography. The filler 13 is a black matrix, which can prevent the backlight from penetrating from the non-display area 122, and ensure the display effect of the display panel. And the color resistor is adopted, so that the manufacturing material of the filler 13 is easy to obtain, the manufacturing process is simple, and the cost is low.
If the material forming the filler 13 is a solution other than the black matrix and the color resist, the solution forming the filler 13 may be applied to the spacers 1222.
The cross-section of the filler 13 may be rectangular, saw-toothed, semicircular or other shape. The filler 13 having a rectangular cross section is easy to manufacture. The filler 13 with the sawtooth-shaped cross section saves manufacturing materials and cost.
The black matrix is located between the color resistors and the spacers 1222. The black matrix is disposed between the color resists and the spacers 1222, so that the black matrix can shield light emitted from the space between the substrates, thereby ensuring the display effect of the display panel.
The frame sealing adhesive 14 may be a photo-curing adhesive, a thermal-curing adhesive, or a combination thereof. In this embodiment, the frame sealing adhesive 14 is an ultraviolet light curing adhesive. The frame sealing glue 14 is ultraviolet light curing glue, and the ultraviolet light curing glue is ultraviolet light curing, so that the curing efficiency is high. The height of the filler 13 is less than that of the frame sealing adhesive 14, so that the filler 13 does not affect the paired boxes of the display panel.
The substrate 12 further includes an alignment film 15, and the alignment film 15 is formed between the spacer 1222 and the display region 121. The alignment film 15 is used to align the liquid crystal molecules at the alignment film 15 at a certain angle.
Specifically, the alignment film 15 solution is coated on the spacer 1222 and the display area 121 of the substrate 12, then the substrate 12 is baked to cure the alignment film 15 solution to form the alignment film 15, and then the alignment film 15 is rubbed or photo-aligned.
More specifically, the solution of the alignment film 15 is coated on the substrate 12 by means of letterpress printing or inkjet printing. The substrate 12 coated with the alignment film 15 solution is pre-baked to primarily dry the coating layer to make the film surface flat, and then baked at a set temperature and for a set time to cure the coating layer to form the alignment film 15. Then, the alignment film 15 is aligned. For example, rubbing with a lint in one direction on the alignment film 15 to complete alignment, in the display device, the liquid crystal molecules at the alignment film 15 will be aligned in parallel according to the rubbing direction; or the alignment film 15 is irradiated with ultraviolet light at a predetermined angle to perform alignment.
The edge of the alignment film 15 is positioned at the spacer 1222. Specifically, the edge of the alignment film 15 may be located at the spacer 1222 by etching.
In the process of coating the alignment film 15, the solution of the alignment film 15 inevitably covers the frame adhesive area 1221 on the substrate 12 to ensure that the alignment film 15 can completely cover the display area 121, the frame sealing adhesive 14 is formed on the alignment film 15, the adhesion force of the frame sealing adhesive 14 cannot meet the requirement, and the reduction of the panel frame is difficult. Therefore, after the alignment film 15 is manufactured, the alignment film 15 is etched, and the area range covered by the alignment film 15 is adjusted, so that the alignment film 15 at least does not cover the frame sealant area 1221 while ensuring that the display area 121 is covered by the alignment film 15, thereby ensuring that at least the frame sealant 14 can be manufactured in the whole frame sealant area 1221, and increasing the adhesion of the frame sealant 14.
In one embodiment, the alignment film 15 may be etched by a photolithography technique, and a portion of the alignment film 15 is removed by a high pressure gas flow, so that the edge of the alignment film 15 is located at the spacer 1222.
In one embodiment, the substrate 12 is a color filter substrate, which is generally a substrate 12 provided with a color filter.
In one embodiment, the substrate 12 is an array substrate, which is generally a substrate 12 provided with a matrix of thin film transistors and a matrix of pixel electrodes.
In the display panel of the above embodiment, the filler 13 is disposed in the spacer 1222 of the substrate 12, so that the filler 13 can fill the gap between the frame sealing adhesive 14 of the substrate 12 and the liquid crystal after forming a box, thereby avoiding the generation of liquid crystal bubbles.
Referring to fig. 4, in an embodiment, a display device includes two display panels in a box-to-box manner, where one of the display panels is a color filter substrate 10, and the other display panel is an array substrate 20, and a liquid crystal layer 30 is disposed between the color filter substrate 10 and the array substrate 20.
The array substrate 20 or the color filter substrate 10 includes a substrate 12, and the substrate 12 includes a display area 121 and a non-display area 122 surrounding the display area. The non-display area 122 includes a sealant area 1221 and a spacer area 1222 between the sealant area 1221 and the display area 121. The substrate 12 further includes a filler 13 and a sealant 14. The filler 13 is disposed at the spacer 1222. The frame sealing adhesive 14 is coated on the frame sealing area 1221.
The filler 13 is a substance that does not chemically react with the liquid crystal. The filler 13 may include a black matrix, or may include a black matrix and a color resistor, where the color resistor may be one or more of a red color resistor, a green color resistor, and a blue color resistor. The black matrix may be disposed on the spacers 1222 by a sputtering method. The color resistors can be disposed in the spacers 1222 by photolithography. The filler 13 is a black matrix, which can prevent the backlight from penetrating from the non-display area 122, and ensure the display effect of the display panel. And the color resistor is adopted, so that the manufacturing material of the filler 13 is easy to obtain, the manufacturing process is simple, and the cost is low.
If the material forming the filler 13 is a solution other than the black matrix and the color resist, the solution forming the filler 13 may be applied to the spacers 1222.
The cross-section of the filler 13 may be rectangular, saw-toothed, semicircular or other shape. The filler 13 having a rectangular cross section is easy to manufacture. The filler 13 with the sawtooth-shaped cross section saves manufacturing materials and cost.
The manufacturing process of the array substrate 20 further includes:
step a, forming a gate line.
Step b, depositing Si3N4 (silicon nitride), a-Si (amorphous silicon), N + a-Si (N-type silicon): firstly, a layer of Si3N4, N + a-Si and a-Si is respectively coated by utilizing a PECVD (Plasma Enhanced Chemical Vapor Deposition) technology, then photoresist glue is coated on the N + a-Si and the a-Si, and a required shape is formed by exposure, development, etching and glue removal.
And c, forming a source line and a drain line. First, a layer of metal material is coated on a-Si as a source line and a drain line, and then photoresist is coated on the metal material and formed into a desired shape by exposure, development, etching, and removal of the photoresist.
D, depositing Si3N4 and ITO (Indium tin oxide): first, a layer of Si3N4 was deposited using PECVD techniques, and then a layer of ITO was applied.
The manufacturing process of the color film substrate 10 further includes manufacturing a black matrix in the display area, wherein the pattern of the black matrix is a plurality of lattice frames arranged in an array surrounded by black opaque materials, and transparent materials with different colors are deposited in the lattice frames, so that the color film substrate 10 can display pictures. The black matrix can be manufactured by a sputtering method. The material of the black matrix may include chromium or titanium, and may also include carbon black acryl. The light-transmitting material in the plurality of frames is formed by a dye method, a pigment dispersion method, a printing method, an electrodeposition method, or an ink-jet method. Among them, the first step of the pigment dispersion method is to disperse fine pigments (having an average particle diameter of less than 0.1 μm) (three colors of red, green, and blue) having uniform particles in a transparent photosensitive resin. Then sequentially forming red, green and blue patterns by coating, exposing and developing processes. The production uses photolithography, and the devices used are mainly coating, exposure, and development devices. The black matrix separates a plurality of the grid frames, thereby avoiding the color mixing of the light-transmitting materials with different colors in different grid frames and ensuring the display effect of the display device.
After liquid crystal is dripped on the array substrate 20, an equipment cavity where the array substrate 20 is located needs to be vacuumized, the color film substrate 10 and the array substrate 20 are bonded in an aligned manner in a vacuum environment to form a display device, and finally the frame sealing glue 14 is cured, so that the color film substrate 10 and the array substrate 20 are formed into a box.
The curing of the frame sealing adhesive 14 can select a corresponding curing mode according to the material of the frame sealing adhesive 14, that is, if the frame sealing adhesive 14 is a photo-curing adhesive, the curing of the frame sealing adhesive 14 can be photo-curing, if the frame sealing adhesive 14 is a thermosetting adhesive, the curing of the frame sealing adhesive 14 can be thermosetting, and if the frame sealing adhesive 14 is a combination of photo-curing and thermosetting, the curing of the frame sealing adhesive 14 can be a combination of photo-curing and thermosetting.
In the display device of the embodiment, the filler 13 is arranged in the spacer region of the color film substrate 10 or the array substrate 20, so that the filler 13 can fill a gap between the frame sealing adhesive 14 of the substrate and the liquid crystal after the substrate is formed into a box, and the generation of liquid crystal bubbles is avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A display panel comprises a substrate, and is characterized in that the substrate comprises a display area, a non-display area surrounding the display area, a filler and a frame sealing adhesive, wherein the non-display area comprises a frame adhesive area and a spacing area between the frame adhesive area and the display area; the filler is arranged in the spacer region; coating the frame sealing glue on the frame sealing glue area; the height of the filler is smaller than that of the frame sealing glue.
2. The display panel according to claim 1, wherein the filler comprises a black matrix.
3. The display panel of claim 1, wherein the filler comprises a black matrix and a color resistor, and the color resistor is one or more of a red color resistor, a green color resistor and a blue color resistor.
4. The display panel according to claim 3, wherein the black matrix is located between the color resistors and the spacers.
5. The display panel according to claim 1, wherein the cross-section of the filler is rectangular or zigzag.
6. The display panel of claim 1, wherein the substrate further comprises an alignment film formed on the spacer region and the display region.
7. The display panel according to claim 6, wherein an edge of the alignment film is positioned in the spacer.
8. The display panel according to claim 1, wherein the substrate is a color film substrate.
9. The display panel according to claim 1, wherein the substrate is an array substrate.
10. A display device comprises two paired box substrates, and is characterized in that the two paired box substrates are the display panels according to any one of claims 1 to 7, one of the display panels is a color film substrate, the other display panel is an array substrate, and a liquid crystal layer is arranged between the color film substrate and the array substrate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920633803.9U CN209911726U (en) | 2019-05-06 | 2019-05-06 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920633803.9U CN209911726U (en) | 2019-05-06 | 2019-05-06 | Display panel and display device |
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| CN209911726U true CN209911726U (en) | 2020-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112418148A (en) * | 2020-12-04 | 2021-02-26 | 厦门天马微电子有限公司 | Display panel and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112418148A (en) * | 2020-12-04 | 2021-02-26 | 厦门天马微电子有限公司 | Display panel and display device |
| CN112418148B (en) * | 2020-12-04 | 2022-10-04 | 厦门天马微电子有限公司 | Display panel and display device |
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