CN212989836U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN212989836U CN212989836U CN202021521422.0U CN202021521422U CN212989836U CN 212989836 U CN212989836 U CN 212989836U CN 202021521422 U CN202021521422 U CN 202021521422U CN 212989836 U CN212989836 U CN 212989836U
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Abstract
The utility model discloses a display panel and display device. The display panel comprises a substrate base plate, wherein the substrate base plate comprises an effective display area and a non-display area surrounding the effective display area, and the substrate base plate also comprises a connecting area which is arranged in the non-display area; an alignment film covering the effective display region; the frame sealing glue is arranged in the non-display area; and the groove penetrates through the connecting line area and is arranged around the alignment film, and the groove is positioned between the alignment film and the frame sealing glue. The utility model discloses technical scheme aims at effectively preventing to join in marriage the flow of membrane liquid.
Description
Technical Field
The utility model relates to a display panel encapsulates technical field, in particular to array substrate, uses this array substrate's display panel and display device.
Background
The liquid crystal display includes upper and lower substrates facing each other, the upper substrate mainly includes a matrix of red, green and blue color resistors and ITO (Indium Tin oxide) as a common electrode, and the lower substrate includes a matrix of metal lines and diodes. The liquid crystal is clamped between the two opposite substrates, and the rotation of liquid crystal molecules is controlled by the pressure difference of the ITO electrodes on the upper substrate and the lower substrate, so that the bright and dark display of the display panel is controlled. The upper and lower substrates are bonded into a box by the frame sealing glue coated on the periphery of one of the substrates.
In the initial stage of the process, the liquid crystal molecules are in a disordered state, and the alignment film needs to be initially oriented. The substrate is provided with a display area and a non-display area, when the alignment film is manufactured, liquid alignment film material needs to be coated on the display area of the substrate, and meanwhile, the liquid alignment film material is prevented from flowing to the frame sealing glue to influence the adhesiveness of the frame sealing glue and finally influence the sealing performance of the color film substrate and the array substrate. In the conventional array substrate, a retaining wall is disposed between the frame sealant and the alignment film to prevent the alignment film liquid from flowing to the frame sealant, and the retaining wall prevents the alignment film liquid from contacting the frame sealant. However, the retaining wall occupies an internal installation space, and the alignment film liquid contacts the retaining wall and is easy to reflow, which is likely to cause abnormal display in the display area.
The statements above merely provide background information related to the present application and may not necessarily constitute prior art.
SUMMERY OF THE UTILITY MODEL
The present invention provides a display panel and a display device, which can effectively prevent the liquid from flowing in the alignment film.
In order to achieve the above object, the present invention provides a display panel, including:
the display device comprises a substrate base plate, a display device and a control circuit, wherein the substrate base plate comprises an effective display area and a non-display area surrounding the effective display area, and the substrate base plate also comprises a connecting area which is arranged in the non-display area;
an alignment film covering the effective display region;
the frame sealing glue is arranged in the non-display area; and
the groove penetrates through the connecting line area and is arranged around the alignment film, and the groove is located between the alignment film and the frame sealing glue.
In an embodiment of the present application, the grooves enclose to form a square structure.
In an embodiment of the present application, the wire region includes a gate wire and a data wire, the gate wire and/or the data wire is a double-layer metal, and the notch of the groove is exposed to the metal layer located on the upper layer.
In an embodiment of the application, the wire region includes a gate wire and a data wire, the gate wire and/or the data wire are both of a three-layer metal structure, and the notch of the groove is exposed to the metal layer on the upper layer.
In an embodiment of the application, the connection region includes a gate connection line and a data connection line, the gate connection line and/or the data connection line are both of a three-layer metal structure, the groove is disposed in the middle metal layer, and the notch of the groove is exposed in the upper metal layer.
In an embodiment of the application, the cross-section of the groove in the direction of extension thereof is square or trapezoidal.
In an embodiment of the present application, a width between two opposite sidewalls of the groove ranges from 5 μm to 50 μm.
In an embodiment of the application, the number of the grooves is multiple, one of the grooves surrounds the other of the grooves, and two adjacent grooves are arranged at intervals.
The utility model discloses still provide a display device, display device includes display panel, display panel includes:
the display device comprises a substrate base plate, a display device and a control circuit, wherein the substrate base plate comprises an effective display area and a non-display area surrounding the effective display area, and the substrate base plate also comprises a connecting area which is arranged in the non-display area;
an alignment film covering the effective display region;
the frame sealing glue is arranged in the non-display area; and
the groove penetrates through the connecting line area and is arranged around the alignment film, and the groove is located between the alignment film and the frame sealing glue.
The utility model discloses still provide a display device, including display panel, display panel includes:
the display device comprises a substrate base plate, a display panel and a display panel, wherein the substrate base plate comprises an effective display area and a non-display area surrounding the effective display area, the substrate base plate also comprises a connecting area, the connecting area is arranged in the non-display area, and the thickness of the substrate base plate is set to be 0.4-0.7 mm;
an alignment film covering the effective display region;
the frame sealing glue is arranged in the non-display area; and
the groove penetrates through the connecting line area and is arranged around the alignment film, and the groove is located between the alignment film and the frame sealing glue.
The utility model discloses technical scheme sets up annular recess through adopting between joining in marriage the membrane and sealing frame glue to prevent to join in marriage membrane liquid and sealing frame glue contact, guarantee the performance of pasting of sealing frame glue. Meanwhile, due to the arrangement of the grooves, liquid of the alignment film cannot flow back, so that the display of the effective display area is normal. Therefore, the technical scheme of the utility model can effectively prevent to join in marriage the removal of membrane liquid to can effectively prevent display panel's demonstration unusual.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of an array substrate according to the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention in which a groove is formed in a double-layer metal layer;
FIG. 3 is a cross-sectional view of another embodiment of the double metal layer of the present invention with a groove;
fig. 4 is a cross-sectional view of an embodiment of the present invention in which three metal layers are provided with grooves;
fig. 5 is a cross-sectional view of another embodiment of the present invention with three metal layers having grooves.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
30 | |
| 10 | |
50 | Frame sealing glue |
| 11 | |
70 | Groove |
| 13 | |
90 | |
| 15 | Metal layer |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The display panel 100 (not shown) includes an effective display region including a plurality of pixels and a non-display region surrounding the display region. An Active Area (Active Area), which is an Area where the substrate board 10 can display text images, may be provided in a middle Area of the substrate board 10. The non-display area refers to an area where a text image cannot be displayed, and is generally provided around the effective display area. The circuit wiring and other driving electronic components are arranged at the position. The non-display area is provided with an external lead bonding area, i.e., a connection area, a plurality of pixels arranged in the display area are used for displaying pictures, the external lead bonding area is provided with a driving chip 90, and the driving chip 90 is connected to the display area through a wire to drive the display of the effective display area. Since the signal transmission part of the driving chip 90 is different from the signal transmission part of the corresponding effective display area in width, the wiring area forms a fan-shaped structure. The wiring region may include a gate wiring region and a data wiring region, and the gate wiring line 11 of the gate wiring region is connected to the gate electrode. The data link region is connected to the source and drain electrodes. The gate link lines 11 and the data link lines 13 each generally have a multi-layer circuit structure, in which a metal layer is used to effectively connect the lines and is generally located at the bottom layer. The upper metal layer can be grooved, so the present invention provides a display panel 100 applied to a display device (not shown).
Referring to fig. 1, a display panel 100 according to an embodiment of the present invention includes:
the display device comprises a substrate base plate 10, wherein the substrate base plate 10 comprises an effective display area and a non-display area surrounding the effective display area, and the substrate base plate 10 further comprises a connecting area which is arranged in the non-display area;
the thickness of the substrate base plate 10 of the present application may be set to 0.4mm to 0.7mm, so that the thickness of the substrate base plate 10 is thinner, and the overall thickness of the display panel 100 is thinner. The substrate 10 is a glass substrate, and the substrate glass can be classified into alkali glass and alkali-free glass. The alkali glass includes two kinds of sodium glass and neutral borosilicate glass, and is mostly applied to TN (Twisted Nematic field effect) and STN LCD (Super Twisted Nematic liquid crystal display), and mainly produced by a floating method. The alkali-free Glass is alkali-free aluminosilicate Glass (SiO Glass as main component)2、Al2O3、B2O3BaO, etc.) and the total alkali metal content is below 1 percent, and the method is mainly used for TFT-LCD.
An alignment film 30, the alignment film 30 is disposed in the effective display region;
alignment film 30(alignment film), the alignment film 30 is a thin film having a straight-striped scratch for guiding the alignment direction of the liquid crystal molecules. For example, on a glass substrate coated with a transparent conductive film (ITO), a PI coating liquid and a roller are used to print a parallel groove on the ITO film, and then the liquid crystal can be horizontally laid in the groove along the direction of the groove, so as to achieve the purpose of arranging the liquid crystal in the same direction.
Material of alignment film 30It is desirable to have good light transmission. The inorganic materials mainly used are: DLC (DLC is an abbreviation for the English term "DIAMOND-LIKE CARBON". DLC is a substance composed of CARBON elements, similar in properties to DIAMOND, and having a structure composed of graphite atoms. Diamond-LIKE thin film is an amorphous thin film having high hardness and high elastic modulus, low friction factor, abrasion resistance, and good vacuum tribological properties), SiC, SiO2、glass、Si3N4、Al2O3、CeO2、ZnTiO2And the like. The main organic materials are: PI (Polyimide), PVC (polyvinyl chloride, the main component of which is PVC), PMMA (polymethyl methacrylate, the main component of which is polymethyl methacrylate), and the like.
Polyimide is selected from the group of polymers having an imide ring (-CO-NH-CO-) in the main chain, and the polymer having a phthalimide structure is most important. Polyimide is used as a special engineering material and has been widely applied to the fields of aviation, aerospace, microelectronics, nano-scale, liquid crystal, separation membranes, laser and the like. Polyimide has the following advantages: the initial decomposition temperature is generally around 500 ℃. Polyimide synthesized from pyromellitic dianhydride and p-phenylenediamine has a thermal decomposition temperature of 600 ℃, and is one of the highest thermal stability varieties in the polymers so far. The polyimide is also resistant to very low temperatures, such as embrittlement in liquid helium at-269 ℃. The polyimide has excellent mechanical performance, the tensile strength of unfilled plastic is over 100MPa, the film (Kapton) of the pyromellitic polyimide is over 170MPa, and the film (Upilex S) of the biphenyl polyimide reaches 400 MPa. As engineering plastics, the elastic modulus is usually 3-4Gpa, the fiber can reach 200Gpa, and the theoretical calculation shows that the fiber synthesized by pyromellitic dianhydride and p-phenylenediamine can reach 500Gpa, which is second to the carbon fiber. Some polyimide varieties are insoluble in organic solvents, stable to dilute acid and not very hydrolysis-resistant in general varieties, but the performance of the similar defect makes polyimide have a great characteristic different from other high-performance polymers, namely, dianhydride and diamine which are raw materials can be recycled by alkaline hydrolysis, for example, in the case of Kapton filmThe recovery rate of the membrane can reach 80-90%. The structure is changed to obtain a variety which is quite resistant to hydrolysis, such as the variety can withstand water boiling for 500 hours at 120 ℃. The polyimide has high radiation resistance, and the film is 5 x 109The strength retention after rad fast electron irradiation is 90%. The polyimide has good dielectric property, the dielectric constant is about 3.4, fluorine is introduced, or air is dispersed in the polyimide in a nanometer size, and the dielectric constant can be reduced to about 2.5. Dielectric loss of 10-3The dielectric strength is 100-300 KV/mm, and the broad-spectrum thermoplastic polyimide is 300 KV/mm. These properties can be maintained at a high level over a wide temperature range and frequency range.
The frame sealing glue 50, the frame sealing glue 50 is arranged in the non-display area;
the frame sealing glue 50 is an adhesive, which bonds the upper and lower substrates of the LCD panel while maintaining a certain gap, and then seals the filled liquid crystal so that it cannot leak and prevent external contaminants from entering, i.e., the frame sealing glue 50, also called as edge sealing glue. The frame sealing glue 50 for the LCD mainly includes two types: thermal curable adhesives and Ultraviolet (UV) curable adhesives. The two glues differ mainly in their curing pattern. The application of the heat-cured adhesive is wider. However, when the high-precision liquid crystal display screen is manufactured, the UV curing adhesive is superior to the thermal curing adhesive in curing time, adhesion force, humidity resistance, heat resistance and the like. In particular, the curing time is short, the production period is shortened, and the dislocation of two pieces of glass in the long-time curing process is prevented. The UV curing adhesive can be selected, the components of the UV curing adhesive are denatured acrylate compounds, and the UV curing adhesive is yellowish viscous liquid in appearance. When the UV curing adhesive works, the colloidal UV curing adhesive is uniformly coated on the frame position of the surface of the upper glass, after the upper substrate and the lower substrate are bonded, the ultraviolet light is used for irradiating to ensure that the adhesive is mutually crosslinked into a stable net structure from a linear macromolecular structure, and the UV curing adhesive has strong adhesive capacity, so that the two substrates are bonded together.
And a groove 70, wherein the groove 70 passes through the connection region and is disposed around the alignment film 30, and the groove 70 is located between the alignment film 30 and the frame sealing adhesive 50.
The utility model discloses technical scheme sets up annular recess 70 through adopting between joining in marriage membrane 30 and frame sealing glue 50 to prevent to join in marriage membrane 30 liquid and frame sealing glue 50 contacts, guarantee the performance of pasting of frame sealing glue 50. Meanwhile, because of the arrangement of the groove 70, the liquid of the alignment film 30 does not flow back, so that the display of the effective display area is normal. Therefore, the technical scheme of the utility model can effectively prevent to join in marriage the removal of 30 liquid on the membrane to can effectively prevent display panel 100's demonstration unusual. By the arrangement of the groove 70, a retaining wall is not required, and therefore, the liquid of the alignment film 30 can be effectively prevented from flowing back.
Referring collectively to fig. 1, in one embodiment of the present application, the grooves 70 enclose a square configuration.
The lengths of the four sides of the square-shaped groove 70 may be set to the same length or may be set to different lengths. The square recess 70 may facilitate the overall structural design. The grooves 70 are also designed to fit the existing substrate 10 in a square shape.
Further, the number of the grooves 70 is multiple, one of the grooves 70 is disposed around the other groove 70, and two adjacent grooves 70 are disposed at intervals.
The grooves 70 are disposed in a ring shape, and can support more alignment layer liquid, so as to further prevent the liquid of the alignment layer 30 from overflowing and flowing back.
Referring to fig. 2 and 3, in an embodiment of the present invention, the wire region includes a gate wire 11 and a data wire 13, the gate wire 11 and/or the data wire 13 is a double-layer metal, and the notch of the groove 70 is exposed in the metal layer 15 on the upper layer.
As can be seen from the figure, the gate connection lines 11 are located at one side of the longer length, and the data connection lines 13 are located at one side of the shorter length. The provision of the double-layer metal structure facilitates the provision of the recess 70 and also reduces the load.
Referring to fig. 4, in another embodiment of the present application, the wire region includes a gate wire 11 and a data wire 13, the gate wire 11 and/or the data wire 13 are both of a three-layer metal structure, and the notch of the groove 70 is exposed in the upper metal layer 15.
The three-layer metal structure can further form a design convenient for grooving, and can prevent the metal layer 15 at the bottommost layer from being exposed when grooving.
With reference to fig. 5, the connection region further includes a gate connection line 11 and a data connection line 13, the gate connection line 11 and/or the data connection line 13 are both of a three-layer metal structure, the groove 70 is disposed in the middle metal layer, and the notch of the groove 70 is exposed in the upper metal layer 15.
With this arrangement, the groove 70 penetrates through the metal layers 15 of the upper and middle layers, so that the depth of the groove 70 is deeper, more liquid of the alignment film 30 can be contained, and the liquid of the alignment film 30 is prevented from flowing back.
It is understood that the metal material of the metal layer 15 may be aluminum or copper or other conductive material.
In an embodiment of the present application, the cross-section of the groove 70 along the extension direction thereof is square (refer to fig. 2 in combination) or trapezoidal (refer to fig. 3 in combination). The square grooves 70 are provided for convenience of processing, and the trapezoidal grooves 70 can accommodate more liquid of the alignment film 30 at the same depth.
Referring to fig. 2 in combination, in an embodiment of the present application, the width between the two opposite sidewalls of the groove 70 ranges from 5 μm to 50 μm. It is understood that, since the depths of the metal layers 15 of the gate link line 11 and the data link line 13 are constant, the width of the groove 70 is designed to adjust the space for accommodating the liquid of the alignment film 30. The width of the groove 70 should not be too wide, and too wide will occupy more space, and should not be too narrow, and too narrow cannot effectively accommodate the liquid in the alignment film 30. Therefore, the width of the groove 70 is set to 5 μm to 50 μm, and may be set to 5 μm, 10 μm, 15 μm, 20 μm, 30 μm, 40 μm, 50 μm, for example.
The utility model discloses still provide a display device, display device includes display panel, because this display device has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer gives unnecessary details one by one here.
The display device can be a liquid crystal television, a mobile terminal (such as a smart phone, a tablet computer and a handheld PDA) or a notebook computer and the like.
The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A display panel, comprising:
the display device comprises a substrate base plate, a display device and a control circuit, wherein the substrate base plate comprises an effective display area and a non-display area surrounding the effective display area, and the substrate base plate also comprises a connecting area which is arranged in the non-display area;
an alignment film covering the effective display region;
the frame sealing glue is arranged in the non-display area; and
the groove penetrates through the connecting line area and is arranged around the alignment film, and the groove is located between the alignment film and the frame sealing glue.
2. The display panel of claim 1, wherein the grooves enclose a square structure.
3. The display panel according to claim 1, wherein the wire region includes a gate wire and a data wire, the gate wire and/or the data wire is a double-layer metal, and the notch of the groove is exposed to the metal layer located on the upper layer.
4. The display panel according to claim 1, wherein the wire region includes a gate wire and a data wire, the gate wire and/or the data wire are both of a three-layer metal structure, and the notch of the groove is exposed to the metal layer located on the upper layer.
5. The display panel according to claim 1, wherein the wire region comprises a gate wire and a data wire, the gate wire and/or the data wire are both of a three-layer metal structure, the groove is disposed in the middle metal layer, and the notch of the groove is exposed in the upper metal layer.
6. A display panel as claimed in any one of claims 1 to 5 characterized in that the cross-section of the groove in the direction of extension thereof is square or trapezoidal.
7. The display panel according to any one of claims 1 to 5, wherein a width between opposite sidewalls of the groove has a value in a range of 5 μm to 50 μm.
8. The display panel according to any one of claims 1 to 5, wherein the number of the grooves is plural, one of the grooves is disposed around the other groove, and two adjacent grooves are disposed at intervals.
9. A display device characterized in that it comprises a display panel according to any one of claims 1 to 8.
10. A display device comprising a display panel, wherein the display panel comprises:
the display device comprises a substrate base plate, a display panel and a display panel, wherein the substrate base plate comprises an effective display area and a non-display area surrounding the effective display area, the substrate base plate also comprises a connecting area, the connecting area is arranged in the non-display area, and the thickness of the substrate base plate is set to be 0.4-0.7 mm;
an alignment film covering the effective display region;
the frame sealing glue is arranged in the non-display area; and
the groove penetrates through the connecting line area and is arranged around the alignment film, and the groove is located between the alignment film and the frame sealing glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021521422.0U CN212989836U (en) | 2020-07-28 | 2020-07-28 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021521422.0U CN212989836U (en) | 2020-07-28 | 2020-07-28 | Display panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN212989836U true CN212989836U (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021521422.0U Active CN212989836U (en) | 2020-07-28 | 2020-07-28 | Display panel and display device |
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| CN (1) | CN212989836U (en) |
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