CN109100892B - Liquid crystal display panel and display device - Google Patents
Liquid crystal display panel and display device Download PDFInfo
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- CN109100892B CN109100892B CN201810982067.8A CN201810982067A CN109100892B CN 109100892 B CN109100892 B CN 109100892B CN 201810982067 A CN201810982067 A CN 201810982067A CN 109100892 B CN109100892 B CN 109100892B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 97
- 239000000758 substrate Substances 0.000 claims abstract description 128
- 239000003292 glue Substances 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims description 34
- 239000011159 matrix material Substances 0.000 claims description 25
- 239000012945 sealing adhesive Substances 0.000 claims description 25
- 229920001187 thermosetting polymer Polymers 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000000565 sealant Substances 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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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
-
- 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
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
-
- 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
- G02F1/13398—Spacer materials; Spacer properties
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a liquid crystal display panel and a display device, wherein the liquid crystal display panel comprises: the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer and frame sealing glue, wherein the array substrate and the opposite substrate are oppositely arranged; the liquid crystal display panel comprises a first light-transmitting area and a display area surrounding the first light-transmitting area, wherein the frame sealing glue is positioned between the first light-transmitting area and the liquid crystal layer to isolate the liquid crystal layer from the first light-transmitting area, and the frame sealing glue is a shading frame sealing glue. The frame sealing glue between the first light-transmitting area and the liquid crystal layer is set to be a shading frame sealing glue, so that light emitted by a backlight source positioned in the display area can be shielded, and the problem of light leakage of the liquid crystal display panel in the first light-transmitting area is solved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a liquid crystal display panel and a display device.
Background
At present, display panels designed by a full screen are more and more popular with consumers, the full screen is designed by adopting a peripheral ultra-narrow frame, and is combined with a panel framework designed by digging holes in a display area and placing a camera, and the full screen is the panel framework with the highest proportion of the panel display screen.
In the liquid crystal display panel, a light-transmitting area is formed at the hole digging position so that the camera can carry out image acquisition through the light-transmitting area, but oblique light emitted by a backlight source positioned in the display area can be transmitted to the light-transmitting area through structures such as a transparent substrate and frame sealing glue, so that the liquid crystal display panel has a light leakage phenomenon in the light-transmitting area.
Therefore, how to alleviate the light leakage phenomenon of the liquid crystal display panel in the light-transmitting area is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a liquid crystal display panel and a display device, which are used for solving the problem of light leakage at a light-transmitting area in the prior art.
An embodiment of the present invention provides a liquid crystal display panel, including: the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer and frame sealing glue, wherein the array substrate and the opposite substrate are oppositely arranged;
the liquid crystal display panel comprises a first light-transmitting area and a display area surrounding the first light-transmitting area, wherein the frame sealing glue is positioned between the first light-transmitting area and the liquid crystal layer to isolate the liquid crystal layer from the first light-transmitting area, and the frame sealing glue is a shading frame sealing glue.
In a possible implementation manner, in the liquid crystal display panel provided in the embodiment of the present invention, the array substrate and the opposite substrate each include a substrate in the first light-transmitting region.
In a possible implementation manner, in the liquid crystal display panel provided in the embodiment of the present invention, the first light-transmitting area includes a through hole penetrating through the display panel.
In a possible implementation manner, in the liquid crystal display panel provided in the embodiment of the present invention, the frame sealing adhesive includes a thermosetting frame sealing adhesive doped with a light shielding material with a predetermined concentration.
In a possible implementation manner, in the liquid crystal display panel provided in the embodiment of the present invention, the light-shielding material accounts for 35% to 70% by mass of the thermosetting frame sealing adhesive.
In a possible implementation manner, in the liquid crystal display panel provided in the embodiment of the present invention, the light shielding material is graphite or a thermochromic material, wherein the thermochromic material forms a black substance after changing color during a curing process.
In a possible implementation manner, in the liquid crystal display panel provided in an embodiment of the present invention, a shape of the first light-transmitting area includes: any one or combination of circular, oval or square.
On the other hand, an embodiment of the present invention further provides a display device, including the liquid crystal display panel according to any one of the embodiments above, and a backlight source located on a side away from the light exit surface of the liquid crystal display panel;
the backlight source comprises a second light-transmitting area, and the orthographic projection of the second light-transmitting area on the substrate at least covers the orthographic projection of the first light-transmitting area on the substrate;
the orthographic projection of the second light-transmitting area on the substrate base plate and the orthographic projection of the first light-transmitting area on the substrate base plate are overlapped to form a light-transmitting area.
In a possible implementation manner, in the display device provided in an embodiment of the present invention, the display device further includes: the backlight source is positioned on one side, facing the liquid crystal display panel, of the backlight source, and the black matrix is positioned on one side, facing the array substrate, of the opposite substrate, and the orthographic projection of the black matrix on the array substrate completely covers the orthographic projection of the light shielding glue on the array substrate;
the boundary of one side, close to the light-transmitting area, of the shading glue is flush with the boundary of one side, close to the light-transmitting area, of the frame sealing glue, and the distance m between the boundary of one side, close to the light-transmitting area, of the shading glue and the boundary of one side, far away from the light-transmitting area, of the shading glue meets the following formula:
wherein n represents a vertical distance between an upper surface of the side of the light shielding glue facing the array substrate and a lower surface of the side of the black matrix facing the array substrate, θ represents a maximum light-emitting angle of the backlight source, m represents a distance between a boundary of the side of the light shielding glue close to the light-transmitting area and a boundary of the side of the light shielding glue far away from the light-transmitting area, and k represents a distance between a boundary of the side of the black matrix close to the light-transmitting area and a boundary of the side of the black matrix far away from the light-transmitting area.
In a possible implementation manner, in the display device provided in an embodiment of the present invention, the display device further includes: the protective cover plate is positioned on one side, opposite to the array substrate, of the opposite substrate, and the ink layer is positioned on one side, facing the opposite substrate, of the protective cover plate, wherein a pattern formed by the ink layer surrounds the light-transmitting area;
the distance between the boundary of the side, away from the light-transmitting area, of the graph formed by the ink layer and the central axis of the light-transmitting area is smaller than or equal to the distance between the boundary of the side, away from the light-transmitting area, of the black matrix and the central axis of the light-transmitting area;
the distance between the boundary of the black matrix close to one side of the light-transmitting area, the boundary of the light-shielding glue close to one side of the light-transmitting area and the distance between the boundary of the frame sealing glue close to one side of the light-transmitting area and the central axis of the light-transmitting area is larger than or equal to the distance between the boundary of the pattern formed by the ink layer close to one side of the light-transmitting area and the central axis of the light-transmitting area.
In a possible implementation manner, in the display device provided in an embodiment of the present invention, the display device further includes: the orthographic projection of the light-transmitting area on the substrate at least covers the orthographic projection of the camera module on the substrate.
In a possible implementation manner, in the above display device provided by the embodiment of the present invention, when the array substrate and the opposite substrate are both provided with substrate substrates in the light-transmitting region, the camera module is located on a side of the array substrate facing away from the opposite substrate.
In a possible implementation manner, in the display device provided in the embodiment of the present invention, when the first light-transmitting area includes a through hole penetrating through the display panel, the camera module is at least partially located in the through hole penetrating through the display panel.
The invention has the following beneficial effects:
the embodiment of the invention provides a liquid crystal display panel and a display device, wherein the liquid crystal display panel comprises: the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer and frame sealing glue, wherein the array substrate and the opposite substrate are oppositely arranged; the liquid crystal display panel comprises a first light-transmitting area and a display area surrounding the first light-transmitting area, wherein the frame sealing glue is positioned between the first light-transmitting area and the liquid crystal layer to isolate the liquid crystal layer from the first light-transmitting area, and the frame sealing glue is a shading frame sealing glue. The frame sealing glue between the first light-transmitting area and the liquid crystal layer is set to be a shading frame sealing glue, so that light emitted by a backlight source positioned in the display area can be shielded, and the problem of light leakage of the liquid crystal display panel in the first light-transmitting area is solved.
Drawings
Fig. 1 is a schematic structural diagram of a display device in the related art;
FIG. 2 is a schematic cross-sectional view taken along line A1-A2 of FIG. 1;
FIG. 3 is another schematic cross-sectional view taken along line A1-A2 of FIG. 1;
fig. 4 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the invention;
FIG. 5 is a schematic cross-sectional view taken along line B1-B2 of FIG. 4;
FIG. 6 is another schematic cross-sectional view taken along line B1-B2 of FIG. 4;
FIG. 7 is a schematic structural view of a display device including the liquid crystal display panel shown in FIG. 4;
FIG. 8 is a schematic cross-sectional view taken along line B1-B2 of FIG. 7;
FIG. 9 is another schematic cross-sectional view taken along line B1-B2 of FIG. 7;
FIG. 10 is a further schematic cross-sectional view taken along line B1-B2 of FIG. 7;
FIG. 11 is a schematic cross-sectional view taken along line B1-B2 of FIG. 7;
FIG. 12 is a further cross-sectional view taken along line B1-B2 of FIG. 7;
FIG. 13 is a further cross-sectional view taken along line B1-B2 of FIG. 7.
Detailed Description
In order to realize the overall screen design of the display panel, as shown in fig. 1, a hole needs to be formed in the display area to form a light-transmitting area, and the light-transmitting area is arranged corresponding to the camera or other components to realize corresponding functions. As shown in fig. 2, the display panel includes an array substrate 1 and an opposite substrate 2 disposed oppositely, a liquid crystal layer 3 and a frame sealing adhesive 4 disposed between the array substrate 1 and the opposite substrate 2; the backlight source 5 is disposed at a position corresponding to the display area of the display panel for displaying, and oblique light emitted by the backlight source 5 passes through the array substrate 1 and the frame sealing adhesive 4 and is emitted into the light-transmitting area, and even forms reflected light under the action of the opposite substrate 2, so that the light-transmitting area generates a light leakage phenomenon. The array substrate 1 and the opposite substrate 2 shown in fig. 2 include a substrate in the light-transmitting area, and the array substrate 1 and the opposite substrate 2 shown in fig. 3 do not include a substrate in the light-transmitting area (i.e., the light-transmitting area is set as a through hole), both of which may cause light leakage in the light-transmitting area. If set up camera 6 in the light transmission region, the light that leaks of light transmission region then can exert an influence to the light of camera 6 response to shoot the picture and exert an influence.
The embodiment of the invention provides a liquid crystal display panel and a display device, aiming at the problem of light leakage of a light-transmitting area of the liquid crystal display panel in the related art. In order to make the objects, technical solutions and advantages of the present invention clearer, specific embodiments of a liquid crystal display panel and a display device according to an embodiment of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments described below are only for illustrating and explaining the present invention and are not to be used for limiting the present invention. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
The present invention provides a liquid crystal display panel, as shown in fig. 4 to 6, the liquid crystal display panel including: the liquid crystal display panel comprises an array substrate 10, an opposite substrate 11, a liquid crystal layer 12 and a frame sealing adhesive 13, wherein the array substrate 10 and the opposite substrate 11 are arranged oppositely, and the liquid crystal layer 12 and the frame sealing adhesive 13 are positioned between the array substrate 10 and the opposite substrate 11;
the liquid crystal display panel comprises a first light-transmitting area b and a display area a surrounding the first light-transmitting area b, and the frame sealing glue 13 is positioned between the first light-transmitting area b and the liquid crystal layer 12 to isolate the liquid crystal layer 12 from the first light-transmitting area b, wherein the frame sealing glue 13 is a light-shielding frame sealing glue.
Specifically, in the liquid crystal display panel provided in the embodiment of the present invention, in order to implement a full-screen design, the first light-transmitting area is disposed at a position surrounded by the display area, where the first light-transmitting area may be located at any position surrounded by the display area, for example, as shown in fig. 4, the first light-transmitting area b may be located at an upper left of the display panel, or may be located at another position, which is not limited specifically herein. In addition, in the liquid crystal display panel, the number of the first light-transmitting areas may be one, or a plurality of the first light-transmitting areas may be provided according to actual needs, and is not particularly limited herein. The shape of the first light-transmitting region is not limited, and may be circular, elliptical, square, or the like, and is specifically designed as necessary, and the first light-transmitting region is illustrated as a circle in fig. 4.
The first light-transmitting area is arranged to allow the first light-transmitting area to transmit external light, but not to transmit light emitted by the backlight source, and on the contrary, the light emitted by the backlight source is prevented from interfering with light rays in the first light-transmitting area. If the camera is arranged in the first light-transmitting area, the problem of ghost images of images during photographing can be caused when light leakage occurs.
Specifically, in the liquid crystal display panel provided in the embodiment of the present invention, as shown in fig. 4 to 6, the liquid crystal display panel includes a first light-transmitting area b and a display area a surrounding the first light-transmitting area b, the sealant 13 is located between the first light-transmitting area b and the liquid crystal layer 12 to isolate the liquid crystal layer 12 from the first light-transmitting area b, and the sealant 13 between the first light-transmitting area a and the liquid crystal layer 12 is configured as a light-shielding sealant, so that oblique light emitted from the backlight source in the display area a is irradiated onto the light-shielding sealant 13 through the array substrate, and the oblique light cannot be irradiated into the first light-transmitting area b through the sealant 13, that is, light emitted from the backlight source in the display area b is shielded by the sealant 13, thereby alleviating the problem that the liquid crystal display panel leaks light in the first light-transmitting area b.
Alternatively, in the liquid crystal display panel provided in the embodiment of the present invention, as shown in fig. 5, the array substrate 10 and the opposite substrate 11 each include a substrate in the first light-transmitting region b.
Specifically, in the liquid crystal display panel provided in the embodiment of the present invention, as shown in fig. 5, the first light-transmitting area b is not displayed as the non-display area, and the first light-transmitting area b may be a blind hole, that is, there is no shielding pattern but there is a transparent medium, such as a substrate. The substrate of the array substrate 10 or the opposite substrate 11 is arranged on the whole surface, so that the substrate does not need to be patterned, and the preparation process is reduced.
Optionally, in the liquid crystal display panel provided in the embodiment of the present invention, as shown in fig. 6, the first light-transmitting area b includes a through hole penetrating through the display panel.
Specifically, in the liquid crystal display panel provided in the embodiment of the present invention, as shown in fig. 6, the first light-transmitting area b may be a real hole (through hole), that is, all the film materials are completely cut away, so as to transmit light. The first light-transmitting area b of this kind of setting mode is a through-hole, has certain space in the through-hole, can set up parts such as camera at least part in the through-hole, can reduce parts such as camera and occupy the thickness of liquid crystal display panel alone, is favorable to realizing the slim thin of liquid crystal display panel.
Optionally, in the liquid crystal display panel provided in the embodiment of the present invention, the frame sealing adhesive includes a thermosetting frame sealing adhesive doped with a light shielding material with a predetermined concentration.
Specifically, in the liquid crystal display panel provided in the embodiment of the present invention, the frame sealing adhesive mainly includes two parts, one part is a frame sealing adhesive matrix, i.e., a thermosetting frame sealing adhesive material, and the other part is a light shielding material doped in the thermosetting frame sealing adhesive material, and the frame sealing adhesive has a light shielding property by doping the light shielding material, so that light leakage caused by light obliquely emitted from the backlight source entering the first light transmitting area through the frame sealing adhesive can be avoided.
Optionally, in the liquid crystal display panel provided in the embodiment of the present invention, the light-shielding material accounts for 35% to 70% by mass of the thermosetting frame sealing adhesive.
Specifically, in the liquid crystal display panel provided in the embodiment of the present invention, when the light shielding material accounts for 35% to 70% by mass of the thermosetting frame sealing adhesive, the liquid crystal display panel can play a role of shielding light and can also ensure the sealing performance of the frame sealing adhesive, and when the light shielding material accounts for less than 35% by mass of the thermosetting frame sealing adhesive, the light shielding performance of the frame sealing adhesive is poor due to too small doping concentration of the light shielding material; when the light shielding material accounts for more than 70% of the thermosetting frame sealing adhesive by mass, the proportion of the thermosetting frame sealing adhesive is too small due to too much proportion of the light shielding material, and the frame sealing adhesive cannot be well molded after thermosetting, so that the sealing performance of the frame sealing adhesive is poor.
Optionally, in the liquid crystal display panel provided in the embodiment of the present invention, the light shielding material is graphite or a thermochromic material, wherein the thermochromic material changes color during a curing process to form a black substance.
Specifically, in the liquid crystal display panel provided in the embodiment of the present invention, the light shielding material may be graphite which is the light shielding material when not reacting, or may be a thermochromic material which reacts to become the light shielding material after being heated, where when the thermochromic material is selected, the thermochromic material which changes to a dark color after reacting is selected as much as possible, and the concentration of the thermochromic material is slightly different when the light shielding material is graphite or the thermochromic material, and the specific concentration is finely adjusted according to actual use conditions, which is not limited specifically herein.
Optionally, in the liquid crystal display panel provided in the embodiment of the present invention, the shape of the first light-transmitting area includes: any one or combination of circular, oval or square.
Specifically, in the liquid crystal display panel provided in the embodiment of the present invention, the shape of the first light-transmitting area may be a circle, an ellipse, or a square in the above embodiments, or may be any combination pattern or irregular pattern, and is selected according to the actual use situation in specific use.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, as shown in fig. 7, fig. 8, and fig. 9, including the liquid crystal display panel provided in any of the above embodiments, and a backlight 20 located on a side away from a light emitting surface of the liquid crystal display panel;
the backlight 20 includes a second light-transmitting area c, and an orthographic projection of the second light-transmitting area c on the substrate at least covers an orthographic projection of the first light-transmitting area b on the substrate;
the overlapping part of the orthographic projection of the second light-transmitting area c on the substrate and the orthographic projection of the first light-transmitting area b on the substrate forms a light-transmitting area.
Specifically, in the display device provided in the embodiment of the present invention, as shown in fig. 8 and 9, the backlight 20 is cut into a through hole at a position corresponding to the first light-transmitting area b of the liquid crystal display panel to form a second light-transmitting area c, wherein an orthographic projection of the second light-transmitting area c formed on the substrate is greater than or equal to an orthographic projection of the first light-transmitting area b on the substrate, and a portion of the second light-transmitting area c overlapping the first light-transmitting area b forms a light-transmitting area, so that external light can transmit through the light-transmitting area, and if the camera is disposed in the light-transmitting area, the camera can collect an image to be photographed through the light transmitted through the light-transmitting area.
Optionally, in the display device provided in the embodiment of the present invention, as shown in fig. 8 and 9, the display device further includes: the backlight source 20 is positioned on one side facing the liquid crystal display panel, the black matrix 14 is positioned on one side of the opposite substrate 11 facing the array substrate 10, and the orthographic projection of the black matrix 14 on the array substrate 10 completely covers the orthographic projection of the light shielding glue 21 on the array substrate 10;
the boundary of one side, close to the light-transmitting area, of the light-shielding glue 21 is flush with the boundary of one side, close to the light-transmitting area, of the frame sealing glue 13, and the distance m between the boundary of one side, close to the light-transmitting area, of the light-shielding glue 21 and the boundary of one side, far away from the light-transmitting area, of the light-shielding glue 21 meets the following formula:
where n denotes a vertical distance between an upper surface of the side of the light shielding adhesive 21 facing the array substrate 10 and a lower surface of the side of the black matrix 14 facing the array substrate 10, θ denotes a maximum light exit angle of the backlight 20, m denotes a distance between a boundary of the side of the light shielding adhesive 21 close to the light transmitting area and a boundary of the side of the light shielding adhesive 21 far from the light transmitting area, and k denotes a distance between a boundary of the side of the black matrix 14 close to the light transmitting area and a boundary of the side of the black matrix 14 far from the light transmitting area.
Specifically, in the display device provided in the embodiment of the present invention, as shown in fig. 8 and fig. 9, the backlight 20 has the maximum light-emitting angle θ, and light exceeding the maximum light-emitting angle θ is relatively weak and does not affect light leakage, so that it is only required to ensure that light at the position of the maximum light-emitting angle θ of the backlight 20 can be shielded by the sealant 13, so that the width of the sealant 21 (the distance between the boundary of the sealant 21 close to the light-transmitting area and the boundary of the sealant 21 far from the light-transmitting area) needs to be designed, and the n value and the k value are adjusted to meet the requirement of the above formula, so that the sealant 13 can shield oblique light of the backlight 20, and avoid light leakage in the light-transmitting area.
Optionally, in the display device provided in the embodiment of the present invention, as shown in fig. 10 and 11, the display device further includes: a protective cover 30 positioned on one side of the opposite substrate 11 opposite to the array substrate 10, and an ink layer 31 positioned on one side of the protective cover 30 facing the opposite substrate 11, wherein the pattern formed by the ink layer 31 surrounds the light-transmitting area;
the distance between the boundary d1 of the graph formed by the ink layer 31 and the side far away from the light-transmitting area and the central axis X of the light-transmitting area is smaller than or equal to the distance between the boundary d2 of the black matrix 14 and the central axis X of the light-transmitting area;
the distance between the boundary d3 of the black matrix 14 close to the light-transmitting area, the boundary d3 of the light-shielding glue 21 close to the light-transmitting area, and the boundary d3 of the frame sealing glue 13 close to the light-transmitting area and the central axis X of the light-transmitting area is greater than or equal to the distance between the boundary d4 of the pattern formed by the ink layer 31 close to the light-transmitting area and the central axis X of the light-transmitting area.
Specifically, in the display device provided in the embodiment of the present invention, the display panel is protected by arranging the protective cover plate, or the touch structure is directly fabricated on the protective cover plate to implement the touch function. As shown in fig. 10 and 11, an ink layer 31 is disposed on a side of the protective cover 30 facing the display panel, and a distance between a boundary d1 of the ink layer 31 on a side away from the light transmissive region and a central axis X of the light transmissive region is smaller than or equal to a distance between a boundary d2 of the black matrix 14 on a side away from the light transmissive region and the central axis X of the light transmissive region, so as to ensure that the ink layer 31 does not block the display region; the boundary d3 of the black matrix 14 close to the side of the light-transmitting area, the boundary d3 of the light-shielding glue 21 close to the side of the light-transmitting area, and the boundary d3 of the frame sealing glue 13 close to the side of the light-transmitting area are at least flush with the boundary d4 of the ink layer 31 close to the side of the light-transmitting area, or the distance between the boundary d4 of the ink layer 31 close to the side of the light-transmitting area and the central axis X of the light-transmitting area is smaller than the distance between the boundary d3 of other films close to the side of the light-transmitting area and the central axis X of the light-transmitting area, so that the ink layer 31 can play a role of shielding the internal circuit and the film layer boundary in the display device.
It should be noted that, in the display device shown in fig. 10 and 11, the boundary d3 of the black matrix 14 close to the light-transmitting area, the boundary d3 of the light-shielding glue 21 close to the light-transmitting area, and the boundary d3 of the frame sealing glue 13 close to the light-transmitting area are flush with each other as an example, but they may not be flush with each other in the actual manufacturing process, and are specifically set according to the condition restrictions in the above-mentioned embodiment, and are not specifically limited herein.
Optionally, in the display device provided in the embodiment of the present invention, as shown in fig. 12 and 13, the display device further includes: and the orthographic projection of the light-transmitting area on the substrate at least covers the orthographic projection of the camera module 40 on the substrate.
Specifically, in the display device provided in the embodiment of the present invention, as shown in fig. 12 and 13, since the light-transmitting region is provided, the camera module 40 can be disposed at a position corresponding to the light-transmitting region, so that a requirement that the camera module 40 senses external light can be met, and the camera module does not need to be disposed at other positions of the display device, thereby ensuring a display area of the display device.
Alternatively, in the above display device provided in the embodiment of the present invention, as shown in fig. 12, when the array substrate 10 and the opposite substrate 11 are both provided with substrate substrates in the light-transmitting region, the camera module 40 is located on a side of the array substrate 10 opposite to the opposite substrate 11.
Specifically, in the display device provided in the embodiment of the present invention, as shown in fig. 12, when the substrate substrates are disposed on both the array substrate and the opposite substrate in the light-transmitting area, the camera module 40 or a part of the camera module 40 may be disposed in the second light-transmitting area c, or the camera module 40 may be disposed on a side of the backlight 20 facing away from the display panel. Although the light-transmitting region includes the base substrate, the base substrate has good light-transmitting property, and the camera module 40 can sufficiently sense external light to capture a clear image.
Optionally, in the display device provided in the embodiment of the present invention, as shown in fig. 13, when the first light-transmitting area b includes a through hole penetrating through the display panel, the camera module 40 is at least partially located in the through hole penetrating through the display panel.
Specifically, in the display device provided in the embodiment of the present invention, as shown in fig. 3, since neither the array substrate nor the opposite substrate includes a substrate in the first light-transmitting region b, that is, the first light-transmitting region b is a through hole and does not include any pattern of a film forming end, the camera module 40 or at least a part of the camera module 40 may be disposed in the through hole, so as to reduce the extra thickness of the display device occupied by the camera module alone, which is beneficial to implementing slimness of the display device.
The display device provided by the above embodiment of the present invention may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Other essential components of the display device are understood by those skilled in the art, and are not described herein or should not be construed as limiting the invention. The display device can be implemented by referring to the above embodiments, and repeated descriptions are omitted.
The liquid crystal display panel and the display device provided by the embodiment of the invention comprise: the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer and frame sealing glue, wherein the array substrate and the opposite substrate are oppositely arranged; the liquid crystal display panel comprises a first light-transmitting area and a display area surrounding the first light-transmitting area, wherein the frame sealing glue is positioned between the first light-transmitting area and the liquid crystal layer to isolate the liquid crystal layer from the first light-transmitting area, and the frame sealing glue is a shading frame sealing glue. The frame sealing glue between the first light-transmitting area and the liquid crystal layer is set to be a shading frame sealing glue, so that light emitted by a backlight source positioned in the display area can be shielded, and the problem of light leakage of the liquid crystal display panel in the first light-transmitting area is solved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A display device is characterized by comprising a liquid crystal display panel;
the liquid crystal display panel comprises an array substrate, an opposite substrate, a liquid crystal layer and frame sealing glue, wherein the array substrate and the opposite substrate are oppositely arranged;
the liquid crystal display panel comprises a first light-transmitting area and a display area surrounding the first light-transmitting area, and the frame sealing glue is positioned between the first light-transmitting area and the liquid crystal layer to isolate the liquid crystal layer from the first light-transmitting area, wherein the frame sealing glue is a shading frame sealing glue;
the frame sealing glue comprises a thermosetting frame sealing glue doped with a light-shielding material with preset concentration;
the display device further includes:
the backlight source is positioned on one side departing from the light-emitting surface of the liquid crystal display panel;
the backlight source comprises a second light-transmitting area, and the orthographic projection of the second light-transmitting area on the substrate at least covers the orthographic projection of the first light-transmitting area on the substrate;
the orthographic projection of the second light-transmitting area on the substrate base plate and the orthographic projection of the first light-transmitting area on the substrate base plate are overlapped to form a light-transmitting area;
the display device further includes: the backlight source is positioned on one side, facing the liquid crystal display panel, of the backlight source, and the black matrix is positioned on one side, facing the array substrate, of the opposite substrate, and the orthographic projection of the black matrix on the array substrate completely covers the orthographic projection of the light shielding glue on the array substrate;
the boundary of one side, close to the light-transmitting area, of the shading glue is flush with the boundary of one side, close to the light-transmitting area, of the frame sealing glue, and the distance m between the boundary of one side, close to the light-transmitting area, of the shading glue and the boundary of one side, far away from the light-transmitting area, of the shading glue meets the following formula:
wherein n represents a vertical distance between an upper surface of the side of the light shielding glue facing the array substrate and a lower surface of the side of the black matrix facing the array substrate, θ represents a maximum light-emitting angle of the backlight source, m represents a distance between a boundary of the side of the light shielding glue close to the light-transmitting area and a boundary of the side of the light shielding glue far away from the light-transmitting area, and k represents a distance between a boundary of the side of the black matrix close to the light-transmitting area and a boundary of the side of the black matrix far away from the light-transmitting area.
2. The display device according to claim 1, wherein the array substrate and the opposite substrate each include a substrate in the first light-transmitting region.
3. The display device according to claim 1, wherein the first light-transmitting area includes a through hole penetrating the display panel.
4. The display device according to claim 1, wherein the light-shielding material accounts for 35 to 70 mass percent of the thermosetting frame sealing adhesive.
5. The display device according to claim 1, wherein the light blocking material is graphite or a thermochromic material, wherein the thermochromic material forms a black substance after changing color during a curing process.
6. The display device according to any one of claims 1 to 5, wherein the shape of the first light-transmitting region includes: any one or combination of circular, oval or square.
7. The display device of claim 1, further comprising: the protective cover plate is positioned on one side, opposite to the array substrate, of the opposite substrate, and the ink layer is positioned on one side, facing the opposite substrate, of the protective cover plate, wherein a pattern formed by the ink layer surrounds the light-transmitting area;
the distance between the boundary of the side, away from the light-transmitting area, of the graph formed by the ink layer and the central axis of the light-transmitting area is smaller than or equal to the distance between the boundary of the side, away from the light-transmitting area, of the black matrix and the central axis of the light-transmitting area;
the distance between the boundary of the black matrix close to one side of the light-transmitting area, the boundary of the light-shielding glue close to one side of the light-transmitting area and the distance between the boundary of the frame sealing glue close to one side of the light-transmitting area and the central axis of the light-transmitting area is larger than or equal to the distance between the boundary of the pattern formed by the ink layer close to one side of the light-transmitting area and the central axis of the light-transmitting area.
8. The display device according to any one of claims 1 to 5 and 7, further comprising: the orthographic projection of the light-transmitting area on the substrate at least covers the orthographic projection of the camera module on the substrate.
9. The display device according to claim 8, wherein the camera module is located on a side of the array substrate facing away from the counter substrate when the array substrate and the counter substrate are both provided with substrate substrates in the light-transmitting region.
10. The display device of claim 8, wherein the camera module is at least partially positioned within a through hole extending through the display panel when the first light-transmissive region includes the through hole extending through the display panel.
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| CN201810982067.8A CN109100892B (en) | 2018-08-27 | 2018-08-27 | Liquid crystal display panel and display device |
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