CN113031323B - Frame sealing glue width detection method, display panel and display device - Google Patents
Frame sealing glue width detection method, display panel and display device Download PDFInfo
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- CN113031323B CN113031323B CN202110302207.4A CN202110302207A CN113031323B CN 113031323 B CN113031323 B CN 113031323B CN 202110302207 A CN202110302207 A CN 202110302207A CN 113031323 B CN113031323 B CN 113031323B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
Abstract
The invention is suitable for the technical field of display, and provides a frame sealing glue width detection method, a display panel and a display device, wherein the frame sealing glue width detection method comprises the steps of forming a reflecting layer in a non-display area of a first substrate; and coating a circle of frame sealing glue on the reflecting layer, enabling the width of the frame sealing glue to be smaller than that of the reflecting layer, covering the second substrate on the frame sealing glue, and enabling the first substrate and the second substrate to be pasted into a box to obtain the boxed display panel. According to frame sealing glue and reflector layer there is the difference to the reaction of ultraviolet ray, take place detection device through the ultraviolet ray and shine display panel, when ultraviolet irradiation display panel, reflector layer reverberation when the solidification frame sealing glue, according to the frame sealing glue both sides distance between the light that reflects back to can calculate the width of frame sealing glue, need not additionally to increase check out test set, easy operation is convenient, and the reflector layer is located the non-display area, only reflects light when ultraviolet irradiation, can not influence display panel's normal demonstration.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a frame sealing glue width detection method, a display panel and a display device.
Background
With the development of Display technology, Liquid Crystal Displays (LCDs) have been widely used because of their advantages such as high image quality and thin body. In the production process of the Liquid Crystal display panel, a Color Filter (CF) substrate, a Thin Film Transistor (TFT) array substrate, a Liquid Crystal (LC) sandwiched between the Color Filter substrate and the Thin Film Transistor substrate, and a Sealant (Sealant) are aligned into a box. The box aligning process mainly comprises the steps of coating and curing the frame sealing glue and the like.
At present, in the conventional display panel, a color film substrate and a thin film transistor array substrate are bonded by using frame sealing adhesive, and the frame sealing adhesive is cured by Ultraviolet (UV) light irradiated from the array substrate, so as to adhere an upper substrate and a lower substrate. When the width of the frame sealing glue between the upper substrate and the lower substrate after the box is sealed is too wide, the realization of a narrow frame is not facilitated, and the cutting process is easily influenced; when the width of the frame sealing glue is too narrow, problems such as liquid crystal leakage and the like are easy to occur, the display effect of the display panel is affected, and the cost is high, so that the detection of the width of the frame sealing glue is very important, but the existing detection of the width of the frame sealing glue needs special equipment to detect the width of the frame sealing glue, and the operation is complex.
Disclosure of Invention
The invention aims to provide a frame sealing glue width detection method and a display panel, and aims to solve the technical problems that the conventional frame sealing glue width detection needs special equipment to detect the frame sealing glue width and is complex to operate.
The invention is realized in this way, a frame sealing glue width detection method, comprising:
forming a light reflecting layer on a non-display area of a first substrate;
coating frame sealing glue on the reflecting layer, enabling the width of the frame sealing glue to be smaller than that of the reflecting layer, covering a second substrate on the frame sealing glue, and enabling the first substrate and the second substrate to be pasted into a box to obtain a boxed display panel;
irradiating the display panel through an ultraviolet light generation and detection device, so that the frame sealing glue is cured after absorbing ultraviolet light, and meanwhile, receiving light reflected by the reflecting layer through the ultraviolet light generation and detection device;
and calculating the width of the frame sealing glue by measuring the distance between the light rays reflected from the two sides of the frame sealing glue.
The frame sealing glue width detection method provided by the invention has the beneficial effects that: according to frame sealing glue and reflector layer there is the difference to the reaction of ultraviolet ray, take place detection device through the ultraviolet ray and shine display panel, when the display panel of ultraviolet ray illumination, reflector layer reverberation when the solidification frame sealing glue, according to the distance between the light that the frame sealing glue both sides reflection was come back, thereby can calculate the width of frame sealing glue, need not additionally to increase check out test set, easy operation is convenient, and the reflector layer is located the non-display area, only reflect light when the ultraviolet ray illumination, can not influence display panel's normal demonstration.
In one embodiment, in the step of irradiating the display panel after being boxed by the ultraviolet light generation detection device, the frame sealing adhesive on one side of the first substrate is irradiated. In one embodiment, in the step of irradiating the display panel after the cartridge by the ultraviolet light generation detection device, ultraviolet light emitted by the ultraviolet light generation detection device is perpendicularly incident into the second substrate.
In one embodiment, the reflecting layer is a fluorescent ink layer, and calculating the width of the frame sealing adhesive by calculating the distance between the light rays reflected from the two sides of the frame sealing adhesive includes:
selecting a section of the frame sealing glue as a measurement area;
irradiating the display panel through the ultraviolet light generation detection device to enable a section of the frame sealing glue to absorb ultraviolet light, and receiving fluorescence reflected by the fluorescent ink layer through the ultraviolet light generation detection device;
and calculating the width of the frame sealing glue by measuring the distance between the reflected fluorescence from the two sides of the frame sealing glue.
Another object of the present invention is to provide a display panel manufactured based on the method for detecting a width of a frame sealing adhesive, the display panel including:
a first substrate;
the second substrate is covered on the first substrate; the light reflecting layer is arranged on the non-display area of the first substrate; and
and the frame sealing glue is arranged on the reflecting layer, and the width of the frame sealing glue is smaller than that of the reflecting layer, so that the first substrate and the second substrate are bonded into a box.
The display panel provided by the invention has the beneficial effects that: the frame sealing glue width detection method in the embodiment is adopted, when ultraviolet light irradiates the display panel, the frame sealing glue can be solidified, and the purpose of detecting the frame sealing glue width is achieved, detection equipment does not need to be added, and the light reflecting layer is arranged in the non-display area, only emits light when the ultraviolet light irradiates, and normal display of the display panel cannot be influenced.
In one embodiment, the display panel further includes:
and the first shading layer is arranged in the non-display area of the first substrate and is positioned between the first substrate and the reflecting layer.
In one embodiment, the display panel further includes:
the first light shielding layer is arranged on one side of the first substrate, which faces the frame sealing glue, and is arranged corresponding to the non-display area;
the first flat layer is arranged on one side, facing the frame sealing glue, of the first shading layer, and the reflecting layer is arranged on the first flat layer.
In one embodiment, the display panel further includes:
the metal layer is arranged on one side, facing the frame sealing glue, of the second substrate and corresponds to the non-display area.
In one embodiment, the display panel further includes:
the insulating layer is arranged on one side, facing the frame sealing glue, of the second substrate, the insulating layer is arranged corresponding to the non-display area, and the metal layer is embedded in the insulating layer.
Another object of the present invention is to provide a display device, which includes the display panel.
The display device provided by the invention has the beneficial effects that: by adopting the display panel, the purpose of detecting the width of the frame sealing glue can be achieved while the frame sealing glue is solidified, detection equipment does not need to be added, and the light reflecting layer is arranged in the non-display area and only emits light when irradiated by ultraviolet light, so that the normal display of the display panel is not influenced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of a frame sealing adhesive width detection method according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a display panel according to an embodiment of the present invention;
FIG. 3 is a first schematic cross-sectional view illustrating a non-display area of a display panel according to a first embodiment of the present invention;
FIG. 4 is a second schematic cross-sectional view illustrating a non-display area of a display panel according to a second embodiment of the present invention;
FIG. 5 is a flow chart of a display panel manufacturing process according to a first embodiment of the present invention;
fig. 6 is a schematic cross-sectional structural diagram of a display panel according to a first embodiment of the invention.
Wherein, in the figures, the various reference numbers:
11-a first substrate; 1101-a display area; 1102 — a non-display area; 12-a second substrate; 13-sealing the frame glue; 141-a first light-shielding layer; 142-a second light-shielding layer; 151-a first planar layer; 152-a second planar layer; 16-a light-reflective layer; 17-a metal layer; 18-an insulating layer; 191-support column; 192-RGB unit.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless explicitly defined otherwise.
The description and claims of this invention and the word "comprise" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
In order to explain the technical solution of the present invention, the following detailed description is made with reference to the specific drawings and examples.
Referring to fig. 1 to 3, the method for detecting a width of a frame sealing adhesive according to an embodiment of the present invention is mainly used for manufacturing a display panel, where the display panel includes a first substrate 11 and a second substrate 12, and a non-display area 1102 of the first substrate 11 is coated with a frame sealing adhesive 13.
Specifically, the frame sealing glue width detection method comprises the following steps:
s10: forming a light reflecting layer 16 in a non-display region 1102 of the first substrate 11, wherein the non-display region 1102 is located at a peripheral edge of the first substrate 11;
s20: coating a circle of frame sealing glue 13 on the reflecting layer 16 by using frame sealing glue coating equipment, enabling the width of the frame sealing glue 13 to be smaller than that of the reflecting layer 16, covering the second substrate 12 on the frame sealing glue 13, and enabling the first substrate 11 and the second substrate 12 to be adhered into a box to obtain a boxed display panel;
s30: irradiating the display panel by an ultraviolet light generation and detection device (not shown in the figure), so that the frame sealing glue 13 is cured after absorbing ultraviolet light, and meanwhile, receiving light reflected by the reflecting layer 16 by the ultraviolet light generation and detection device;
s40: the width of the frame sealing adhesive 13 is calculated by measuring the distance between the light rays reflected from both sides of the frame sealing adhesive 13.
In step S20, in the area where the frame sealing adhesive 13 exists, because the frame sealing adhesive 13 can absorb the ultraviolet light to achieve the curing effect, the ultraviolet light cannot pass through the frame sealing adhesive 13, and when the ultraviolet light irradiates the areas of the reflective layers 16 on both sides of the frame sealing adhesive 13, because the width of the reflective layers 16 is greater than that of the frame sealing adhesive 13, the ultraviolet light can irradiate the reflective layers 16 to be reflected, the reflected light on both sides of the frame sealing adhesive 13 is incident to the receiving ends on both sides of the ultraviolet light generation detection device, and the receiving ends on both sides are provided with the detection units, which can detect the reflected light and transmit the detection data to the control module;
in step S40, the control module measures the minimum distance between the excitation lights at the boundaries of the two sides of the frame sealing glue 13, so as to calculate the width of the frame sealing glue 13.
It should be noted that, when the frame sealing adhesive 13 is coated, the width of the conventional frame sealing adhesive coating apparatus is too narrow or too wide. According to the embodiment, the display panel is irradiated by the ultraviolet light generation detection device according to the difference between the reaction of the frame sealing glue 13 and the reflection layer 16 to the ultraviolet light, when the display panel is irradiated by the ultraviolet light, the frame sealing glue 13 is solidified, the reflection layer 16 reflects the light, and the width of the frame sealing glue 13 can be calculated according to the distance between the later light reflected by the two sides of the frame sealing glue 13, so that additional detection equipment is not needed, the operation is simple and convenient, and the reflection layer 16 is positioned in the non-display area 1102 and reflects the light only during the ultraviolet light irradiation, so that the normal display of the display panel is not influenced. The ultraviolet light generation and detection device adopted in the embodiment is an existing device.
In one embodiment, the process of illuminating the display panel behind the box by the ultraviolet reflecting device further comprises:
s301: the frame sealing adhesive 13 on one side of the first substrate 11 is irradiated. Specifically, the non-display regions 1102 on the four sides of the first substrate 11 are all provided with the frame sealing adhesive 13, the frame sealing adhesive 13 on one side of the first substrate 11 is irradiated, the frame sealing adhesive 13 can be well cured, the width of the frame sealing adhesive 13 on one side of the first substrate 11 is convenient to measure, the detection result is accurate, the frame sealing adhesives 13 on the other three sides of the first substrate 11 are sequentially irradiated, and the widths of the frame sealing adhesives 13 on the other sides are convenient to measure while the frame sealing adhesives 13 on the other sides are cured.
Further, the process of irradiating the display panel after the cartridge by the ultraviolet light generation detection device further includes:
s302: the ultraviolet light emitted from the ultraviolet light generation and detection device is vertically incident into the second substrate 12. Specifically, when the ultraviolet light emitted by the ultraviolet light generation detection device is vertically incident into the second substrate 12, a plurality of ultraviolet light is incident into the second substrate 12 in parallel, so that the reflected light is reflected to the ultraviolet light generation detection device in parallel, and the distance between the reflected light at two sides of the frame sealing glue 13 is conveniently and accurately detected. Of course, in other embodiments, the ultraviolet light emitted by the ultraviolet light generation detection device may also be obliquely incident into the second substrate 12.
Further, the light-reflecting layer 16 is a fluorescent ink layer, and the width of the frame sealing glue 13 calculated by calculating the distance between the light rays reflected from the two sides of the frame sealing glue 13 includes:
s401: selecting a section of the frame sealing glue 13 as a measurement area;
s402: the display panel is irradiated by the ultraviolet light generation detection device, so that the frame sealing glue 13 absorbs ultraviolet light at one section, and the ultraviolet light generation detection device absorbs fluorescence reflected by the fluorescent ink layer. The fluorescent ink is based on the principle that a visible fluorescent compound excited by ultraviolet rays is added into the ink, energy level transition of atoms is generated through absorbed light energy, and then absorbed extra energy is released, namely the reflected light is visible light excited by ultraviolet irradiation of a fluorescent ink layer.
S403: the width of the frame sealing adhesive 13 is calculated by measuring the distance between the reflected fluorescence from the two sides of the frame sealing adhesive 13. The ultraviolet light generation detection device receives the fluorescence reflected from the two sides of the frame sealing glue 13, sends the detected data to the control device, and measures the distance through the control device, so that the width of the frame sealing glue 13 can be obtained.
Referring to fig. 5 and 6, an embodiment of the invention further provides a display panel manufactured based on the frame sealing glue width detection method in any of the above embodiments. The display panel includes a first substrate 11, a second substrate 12, a reflective layer 16 and a sealant 13. The second substrate 12 covers the first substrate 11, the reflective layer 16 is disposed on the non-display region 1102 of the first substrate 11, the frame sealing glue 13 is disposed on the reflective layer 16, and the width of the frame sealing glue 13 is smaller than the width of the reflective layer 16.
The display panel in this embodiment is manufactured by using the frame sealing glue width detection method in the above embodiment, when the display panel is irradiated by the ultraviolet light, the purpose of detecting the width of the frame sealing glue 13 is achieved while the frame sealing glue 13 is cured, and no detection device needs to be added, and the reflective layer 16 is in the non-display area 1102 and only emits light when irradiated by the ultraviolet light, so that normal display of the display panel is not affected.
In an embodiment, referring to fig. 3 and fig. 5 specifically, the display panel further includes a first light-shielding layer 141 disposed in the non-display area 1102 of the first substrate 11 and located between the first substrate 11 and the light-reflecting layer 16, that is, the light-reflecting layer 16 is directly disposed on the first light-shielding layer 141 of the first substrate 11, so that the thickness of the light-reflecting layer 16 is increased to achieve a better light-emitting effect, and the detection of the width of the frame sealing adhesive 13 is facilitated.
In another embodiment, referring to fig. 4 and fig. 6 in particular, the difference from the above embodiment is that the display panel further includes a first light-shielding layer 141 and a first planarization layer 151. The first light-shielding layer 141 is disposed on a side of the first substrate 11 facing the sealant 13 and corresponds to the non-display region 1102. The first flat layer 151 is disposed on one side of the first light shielding layer 141 facing the sealant 13, and the reflective layer 16 is disposed on the first flat layer 151. It should be noted that, the structure of the existing display panel has a light shielding layer and a flat layer, in this embodiment, by directly arranging the reflective layer 16 on the first flat layer 151, external air can be prevented from entering the display area 1101, and meanwhile, the reflective layer 16 is directly arranged on the first flat layer 151, so that the detection effect can be achieved without damaging the original structure, and the process is easier to implement.
In an embodiment, with reference to fig. 3 and 4, the display panel further includes a metal layer 17 disposed on a side of the second substrate 12 facing the sealant 13 and corresponding to the non-display region 1102. The metal layer 17 reflects light due to the irradiation of ultraviolet light, and then the reflected light is ultraviolet light, and the wavelength of the ultraviolet light is 200-400 um, and the wavelength of the fluorescence is 400-800um, so that the ultraviolet light generation detection device can distinguish the ultraviolet light from the fluorescence. The metal layer 17 is mainly provided to form a circuit of the display panel, and when the ultraviolet light irradiates on the metal layer 17, total reflection occurs, that is, the ultraviolet light passing through the metal layer 17 is reflected as well as the ultraviolet light. Because the wavelengths of the ultraviolet light and the fluorescence are different, the ultraviolet light generation detection device can distinguish the ultraviolet light from the fluorescence conveniently, and therefore the distance between the fluorescence reflected by the two sides of the frame sealing glue 13 can be measured conveniently.
Specifically, the number of the metal layers 17 is multiple, and the multiple metal layers 17 are disposed in parallel at intervals on one side of the second substrate 12 facing the sealant 13. In a particular application, the number of metal layers 17 is one, two or more.
In one embodiment, further referring to fig. 3 and 4, the display panel further includes an insulating layer 18. The insulating layer 18 is disposed on a side of the second substrate 12 facing the sealant 13, the insulating layer 18 is disposed corresponding to the non-display region 1102, and the metal layer 17 is embedded in the insulating layer 18. When the ultraviolet light generating and detecting means irradiates the insulating layer 18, ultraviolet light can pass through the insulating layer 18. Wherein the insulating layer 18 is used to isolate the metal layer 17 from short circuits.
Further, referring to fig. 5 and 6, the display panel further includes a second light-shielding layer 142, an RGB unit 192, a second flat layer 152 and a supporting pillar 191 sequentially disposed in the display area 1101 of the first substrate 11. The second light-shielding layer 142 is disposed on a side of the first substrate 11 facing the sealant 13. The RGB unit 192 is positioned on the same plane as the second light-shielding layer 142, the second light-shielding layer 142 is used to isolate each small unit of the RGB unit 192, the light emitted from the RGB unit 192 is mixed for displaying an image, and the support column 191 is used to support the second substrate 12 and to space the first substrate 11 from the second substrate 12 and maintain the cell thickness between the first substrate 11 and the second substrate 12.
The embodiment of the invention also provides a display device which comprises the display panel.
In the display device in this embodiment, by using the display panel, the purpose of detecting the width of the frame sealing adhesive 13 can be achieved while the frame sealing adhesive 13 is cured, and no additional detection equipment is needed, and the reflective layer 16 emits light only in the non-display region 1102 when irradiated by ultraviolet light, so that normal display of the display panel is not affected.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A frame sealing glue width detection method is characterized by comprising the following steps:
forming a light reflecting layer on a non-display area of a first substrate;
coating frame sealing glue on the reflecting layer, enabling the width of the frame sealing glue to be smaller than that of the reflecting layer, covering a second substrate on the frame sealing glue, and enabling the first substrate and the second substrate to be pasted into a box to obtain a boxed display panel;
irradiating the second substrate side through an ultraviolet light generation detection device, so that the frame sealing glue is cured after absorbing ultraviolet light, and meanwhile, receiving light reflected by the reflecting layer through the ultraviolet light generation detection device;
and calculating the width of the frame sealing glue by measuring the distance between the light rays reflected from the two sides of the frame sealing glue.
2. The method for detecting the width of frame sealing adhesive according to claim 1, wherein in the step of irradiating the display panel after being boxed by the ultraviolet light generation detection device, the frame sealing adhesive on one side of the first substrate is irradiated.
3. The method for detecting the width of frame sealing adhesive according to claim 1, wherein in the step of irradiating the boxed display panel by the ultraviolet light generation and detection device, the ultraviolet light emitted by the ultraviolet light generation and detection device is vertically incident into the second substrate.
4. The method for detecting the width of the frame sealing adhesive according to claim 1, wherein the reflective layer is a fluorescent ink layer, and calculating the width of the frame sealing adhesive by calculating the distance between the light beams reflected from the two sides of the frame sealing adhesive comprises:
selecting a section of the frame sealing glue as a measurement area;
irradiating the display panel through the ultraviolet light generation detection device to enable a section of the frame sealing glue to absorb ultraviolet light, and receiving fluorescence reflected by the fluorescent ink layer through the ultraviolet light generation detection device;
and calculating the width of the frame sealing glue by measuring the distance between the fluorescence reflected from the two sides of the frame sealing glue.
5. A display panel manufactured based on the frame sealing glue width detection method according to any one of claims 1 to 4, the display panel comprising:
a first substrate;
the second substrate is covered on the first substrate;
the light reflecting layer is arranged on the non-display area of the first substrate; and
and the frame sealing glue is arranged on the reflecting layer, and the width of the frame sealing glue is smaller than that of the reflecting layer, so that the first substrate and the second substrate are bonded into a box.
6. The display panel according to claim 5, wherein the display panel further comprises:
and the first shading layer is arranged in the non-display area of the first substrate and is positioned between the first substrate and the reflecting layer.
7. The display panel of claim 5, wherein the display panel further comprises:
the first light shielding layer is arranged on one side of the first substrate, which faces the frame sealing glue, and is arranged corresponding to the non-display area;
the first flat layer is arranged on one side, facing the frame sealing glue, of the first light shielding layer, and the reflective layer is arranged on the first flat layer.
8. The display panel according to claim 6 or 7, wherein the display panel further comprises:
the metal layer is arranged on one side, facing the frame sealing glue, of the second substrate and corresponds to the non-display area.
9. The display panel of claim 8, wherein the display panel further comprises:
the insulating layer is arranged on one side, facing the frame sealing glue, of the second substrate, the insulating layer is arranged corresponding to the non-display area, and the metal layer is embedded in the insulating layer.
10. A display device characterized by comprising the display panel according to claim 9.
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| CN202110302207.4A CN113031323B (en) | 2021-03-22 | 2021-03-22 | Frame sealing glue width detection method, display panel and display device |
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| CN202110302207.4A CN113031323B (en) | 2021-03-22 | 2021-03-22 | Frame sealing glue width detection method, display panel and display device |
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