CN111128024A - Display device - Google Patents
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- CN111128024A CN111128024A CN201911390296.1A CN201911390296A CN111128024A CN 111128024 A CN111128024 A CN 111128024A CN 201911390296 A CN201911390296 A CN 201911390296A CN 111128024 A CN111128024 A CN 111128024A
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- cover plate
- area
- plane
- display
- display panel
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
Abstract
The invention discloses a display device, which comprises a cover plate and a display panel which are oppositely arranged; the cover plate is positioned on the light emitting side of the display panel and comprises a non-light-transmitting area and a light-transmitting area, and the non-light-transmitting area is provided with an ink layer; the display panel comprises an array substrate, the array substrate comprises a display area and a non-display area surrounding the display area, the display area corresponds to the light-transmitting area, and the non-display area corresponds to the non-light-transmitting area; the non-display area comprises a step area, and a buffer part is arranged on one side of the step area, which is close to the cover plate; an isolation layer is arranged on one side, close to the buffering component, of the ink layer, and the orthographic projection of the isolation layer on the plane where the cover plate is located is at least partially overlapped with the orthographic projection of the buffering component on the plane where the cover plate is located. According to the display device provided by the invention, the isolation layer is arranged between the buffer part and the ink layer, so that silicone oil in the buffer part can be prevented from permeating into the ink layer to influence the structural adhesion of the display device.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device.
Background
With the rapid development of display technology, both the size and the display quality of display devices have been developed in a breakthrough manner. Therefore, display devices are increasingly used in the life of people.
However, in the structural strength test, the peripheral edge of the existing display device is easy to crack, and the impact resistance and the drop resistance of the product are poor. For the easy cracked problem of display device when solving external force effect, can set up the silicone adhesive that has the cushioning effect between display device's display panel and apron, but there is the problem in silicone oil infiltration apron printing ink layer among the display device among the prior art, influences the adhesion of display device structure.
Disclosure of Invention
In view of the above, the present invention provides a display device, in which an isolation layer is disposed between an ink layer and a buffer member to prevent silicone oil in the buffer member from penetrating into the ink layer to affect display quality.
The display device of the invention: comprises a cover plate and a display panel which are oppositely arranged;
the cover plate is positioned on the light emitting side of the display panel and comprises a non-light-transmitting area and a light-transmitting area, and the non-light-transmitting area is provided with an ink layer;
the display panel comprises an array substrate, the array substrate comprises a display area and a non-display area surrounding the display area, the display area corresponds to the light-transmitting area, and the non-display area corresponds to the non-light-transmitting area; the non-display area comprises a step area, and a buffer part is arranged on one side of the step area, which is close to the cover plate;
an isolation layer is arranged on one side, close to the buffering component, of the ink layer, and the orthographic projection of the isolation layer on the plane where the cover plate is located is at least partially overlapped with the orthographic projection of the buffering component on the plane where the cover plate is located.
Compared with the prior art, in order to solve under the condition that has improved buffering part and apron overlap area ratio, the area of contact increase of the printing ink layer on buffering part and the apron leads to the silicone oil among the buffering part to permeate into the possibility increase on printing ink layer, and influences the problem that the display device structure adhered. The invention provides a display device, wherein an isolation layer is arranged on one side of an ink layer close to a buffer part, the orthographic projection of the isolation layer on the plane of a cover plate is at least partially overlapped with the orthographic projection of the buffer part on the plane of the cover plate, namely, the isolation layer is clamped between the buffer part and the ink layer, and the orthographic projection of the isolation layer on the plane of the cover plate is at least partially overlapped with the orthographic projection of the buffer part on the plane of the cover plate, so that the silicone oil in the buffer part is prevented from permeating the ink layer under the conditions of not reducing the overlapping area ratio of the buffer part and the cover plate and not changing the main body cause value of the ink layer, the service life of the display device can be prolonged, and the quality of the display device can.
Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram of a prior art display device;
FIG. 2 is a cross-sectional view taken along line N-N' of FIG. 1;
FIG. 3 is a schematic structural diagram of a display device according to the present invention;
FIG. 4 is a cross-sectional view taken along line M-M' of FIG. 3;
FIG. 5 is a schematic structural diagram of another display device according to the present invention;
FIG. 6 is a cross-sectional view taken along line K-K' of FIG. 5;
FIG. 7 is a further sectional view taken along line K-K' of FIG. 5;
FIG. 8 is a further sectional view taken along line K-K' of FIG. 5;
FIG. 9 is a partial schematic view of a cover plate of a display device according to the present invention;
FIG. 10 is a cross-sectional view taken along line M-M' of FIG. 3;
FIG. 11 is a schematic structural diagram of another display device according to the present invention;
fig. 12 is a cross-sectional view taken along line W-W' of fig. 11.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the structural strength test in the prior art, the peripheral edge of the existing display device is found to be easy to crack, the product has poor impact resistance and drop resistance, and the product is more serious for the step area of the attached driving chip. In order to prolong the service life of the display device, the method for solving the problem that the display device, particularly the step area is easy to crack at present adopts silicone adhesive as a step surface base material, and the overlapping area ratio of the silicone adhesive and the cover plate is larger than 50%. Prior art display device, referring to fig. 1 and 2, fig. 1 is a schematic structural view of a prior art display device, and fig. 2 is a cross-sectional view taken along the direction N-N' in fig. 1. The prior art provides a display device 100, which includes a cover plate 01 and a display panel 02 that are oppositely disposed;
the cover plate 01 is located on the light emitting side of the display panel 02, the cover plate 01 comprises a non-light-transmitting area 08 and a light-transmitting area 07, and an ink layer 09 is arranged in the non-light-transmitting area 07;
the display panel 02 comprises an array substrate 04 and a color film substrate 05, wherein a liquid crystal (not shown in the figure) is sandwiched between the array substrate 04 and the color film substrate 05; the array substrate 04 comprises a display area AA and a non-display area BB surrounding the display area AA, wherein the display area AA corresponds to the light-transmitting area 07, and the non-display area BB corresponds to the non-light-transmitting area 08; the non-display area BB includes a step area 010, and a silicone adhesive 011 is disposed on a side of the step area 010 near the cover plate 01.
In order to prevent light leakage, the display device 100 may be configured with a light-shielding ink layer in a non-display area of a cover plate during a cover plate production process; and in order to improve display device life, it is greater than 50% to set up silicone adhesive and apron overlap area ratio, lead to silicone adhesive and shading printing ink layer to have partial contact, the shading printing ink layer contains the matte powder, the matte powder porosity is big, expose and extremely easily absorb moisture in the air, silicone adhesive contains the silicone oil composition simultaneously, after contacting with the shading printing ink layer, the silicone oil in the silicone adhesive can be absorbed the infiltration printing ink by the matte powder, the region on silicone oil infiltration shading printing ink layer, use alcohol to wipe and can't improve, influence the adhesion of display device structure.
In order to solve the above technical problem, the present invention provides a display device. The following description will be made in detail with respect to embodiments of the display device provided by the present invention.
In this embodiment, referring to fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of a display device according to the present invention, and fig. 4 is a cross-sectional view along the direction M-M' in fig. 3. The display device 200 in the present embodiment includes: the cover plate 1 and the display panel 2 are oppositely arranged;
the cover plate 1 is positioned on the light emitting side 21 of the display panel 2, the cover plate 1 comprises a non-light-transmitting area 3 and a light-transmitting area 4, and the non-light-transmitting area 4 is provided with an ink layer 5;
the display panel 2 includes an array substrate 6 and a color filter substrate 11, and a liquid crystal (not shown in the figure) is sandwiched between the array substrate 6 and the color filter substrate 11; the array substrate 6 comprises a display area AA and a non-display area BB surrounding the display area, wherein the display area AA corresponds to the light-transmitting area 4, and the non-display area BB corresponds to the non-light-transmitting area 3; the non-display area BB comprises a step area 7, and a buffer part 8 is arranged on one side, close to the cover plate 1, of the step area 7;
an isolation layer 9 is arranged on one side, close to the buffer component 8, of the ink layer 5, and an orthographic projection of the isolation layer 9 on a plane where the cover plate 1 is located is at least partially overlapped with an orthographic projection of the buffer component 8 on the plane where the cover plate 1 is located. Wherein, the material of the buffer component 8 is selected from materials with certain elasticity, and can be silicone adhesive.
It can be understood that the orthographic projection of the isolation layer 9 on the plane where the cover plate 1 is located is at least partially overlapped with the orthographic projection of the buffer component 8 on the plane where the cover plate 1 is located, and the isolation layer 9 can play a role of preventing silicone oil in the buffer component 8 from entering the ink layer 5.
In order to prevent the display device 200 from being broken and affecting the service life of the display device 200, the buffer member 8 is arranged in the step area, and optionally, the overlapping area ratio of the buffer member 8 and the cover plate 1 is more than 50%, so that the function of supporting the display device 200 is achieved, and the service life of the display device 200 is prolonged; meanwhile, the problem that the structure adhesion of the display device is affected due to the fact that the possibility that silicone oil in the buffering part 8 penetrates into the ink layer 5 is increased due to the fact that the contact area between the buffering part and the ink layer 5 on the cover plate 1 is increased under the condition that the overlapping area ratio of the buffering part 8 to the cover plate 1 is improved is solved.
The isolation layer 9 is arranged on one side, close to the buffer part 8, of the ink layer 5, at least part of the orthographic projection of the isolation layer 9 on the plane where the cover plate 1 is located is overlapped with the orthographic projection of the buffer part 8 on the plane where the cover plate 1 is located, namely, the isolation layer 9 is clamped between the buffer part 8 and the ink layer 5, at least part of the orthographic projection of the isolation layer 9 on the plane where the cover plate 1 is located is overlapped with at least part of the orthographic projection of the buffer part 8 on the plane where the cover plate 1 is located, the overlapping area ratio of the buffer part 8 and the cover plate 1 can be prevented, the silicone oil in the buffer part 8 is prevented from penetrating into the ink layer 5 under the condition that the main body cause value of the ink layer 5 is not changed, the service life of.
In some alternative embodiments, with continued reference to fig. 3 and 4, fig. 4 is a cross-sectional view taken along line M-M' of fig. 3.
The present embodiment provides a display device 200: the orthographic projection of the buffer part 8 on the plane of the cover plate 1 is positioned in the orthographic projection of the isolation layer 9 on the plane of the cover plate 1. The insulating layer 9 is interposed between the buffer member 8 and the ink layer 5, so that the silicone oil in the insulating buffer member 8 can be prevented from penetrating into the ink layer 5 without reducing the overlapping area ratio of the buffer member 8 and the cover plate 1 and without changing the main body dyne value of the ink layer 5. Further, on the buffering part 8 that covers the insulating layer 9 comprehensively, can ensure that buffering part 8 can not contact printing ink layer 5 completely to can ensure that silicone oil in buffering part 8 can not permeate printing ink layer 5, be favorable to further guaranteeing display device 200's finished product quality.
In some alternative embodiments, reference is continued to fig. 3 and 4. In the display device 200 provided in this embodiment, the isolation layer 9 is disposed on one side of the ink layer 5 close to the buffer component 8 by silk-screen printing or attaching. Meanwhile, the isolation layer 9 can be fabricated together with other layers of the display device 200, thereby simplifying the process and reducing the cost.
It is understood that, in order to achieve the light shielding or other functions of the cover plate 1, at least one layer of the ink layer 5 is disposed on the cover plate 1, and a silk screen printing method is generally adopted. Optionally, when the isolation layer 9 is an ink layer or a coating, the isolation layer 9 is arranged on one side of the ink layer 5 close to the buffer component 8 in a silk-screen printing manner, and a device with higher cost is not required in the silk-screen printing manner, so that the manufacturing cost is reduced; meanwhile, the ink of the isolation layer 5 can be manufactured in the same layer as the ink on the cover plate 1, and even the same material can be adopted, so that the process can be further simplified, and the manufacturing cost can be reduced. Optionally, when the insulating layer 9 is a glue layer, the insulating layer 9 is disposed on one side of the ink layer 5 close to the buffer component 8 in an attaching manner, and the manufacturing process can be simplified in the attaching manner.
In some alternative embodiments, with continued reference to fig. 3 and 4, the present embodiment provides a display device 200 in which the insulating layer 9 does not absorb silicone oil in the ink layer.
The insulating layer 9 is to prevent silicone oil in the buffer member 8 from penetrating the ink layer 5. Alternatively, the insulating layer 9 may be made of a material that absorbs ink weakly, and may prevent silicone oil in the buffer member 8 from penetrating into the ink layer 5 to some extent. Of course, the insulating layer 9 may also be made of a material that does not absorb silicone oil, and can completely block silicone oil in the cushioning member 8 from penetrating into the ink layer 5. And then can realize that pressing from both sides between buffer part 8 and printing ink layer 5 and establishing insulating layer 9, can need not to reduce buffer part 8 and the 1 overlap area ratio of apron to and need not through the condition of changing the main part dyne value of printing ink layer 5, prevent that the silicone oil in the insulating buffer part 8 from permeating in printing ink layer 5.
In some alternative embodiments, with continued reference to fig. 3 and 4, the present embodiment provides a display device 200 in which the dyne value of the insulating layer 9 is equal to or less than 28A.
The dyne value is used for expressing the force which is mutually dragged in unit length between two adjacent parts of the surface of the liquid and is mainly used for expressing the magnitude of surface tension, and further, the dyne value is mainly used for expressing the surface tension coefficient; the dyne value is usually detected by a dyne pen (surface tension test pen).
When the dyne value of the material of the isolation layer 9 is less than or equal to 28A, the absorption capacity of the isolation layer 9 to silicone oil can be reduced to a certain extent, and the silicone oil in the buffer member 8 can be further prevented from permeating the ink layer 5. And then can realize that pressing from both sides between buffer part 8 and printing ink layer 5 and establishing insulating layer 9, can need not to reduce buffer part 8 and the 1 overlap area ratio of apron to and need not through the condition of changing the main part dyne value of printing ink layer 5, can prevent that the silicone oil in the insulating buffer part 8 from permeating in printing ink layer 5.
It can be understood that, in the present invention, the isolation layer 9 is used to prevent the silicone oil in the buffer component 8 from penetrating into the ink layer 5, wherein the material of the isolation layer 9 may be limited according to actual requirements, in this embodiment, only the material of the insulation layer 9 is shown to be the material that does not absorb the silicone oil or the dyne value is less than or equal to 28A, and meanwhile, parameters of the isolation layer 9 may also be adjusted from multiple aspects, for example, the dyne value of the isolation layer 9 is set to be less than or equal to 28A under the condition that the material of the isolation layer 9 is limited not to absorb the silicone oil, so that the silicone oil in the buffer component 8 can be further prevented from penetrating into the ink layer 5. It is more flexible and convenient to define the patterned layer 9 in various ways.
In some alternative embodiments, please refer to fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of another display device provided by the present invention, and fig. 6 is a cross-sectional view along direction K-K' in fig. 5. The present embodiment provides a display device 200 in which the buffer member 8 includes a plurality of sub-buffer members 81, and in the direction perpendicular to the plane of the cover plate 1, the sub-buffer members 81 at least partially overlap the insulating layer 9; fig. 6 only illustrates the completely overlapped condition, and certainly, the completely overlapped condition may also be partially overlapped, the isolation layer 9 may prevent the silicone oil in the buffer component 8 from entering the ink layer 5, and in this embodiment, no specific requirement is made on the overlapping degree of the buffer component 8 and the isolation layer 9, and the overlapping degree may be set according to the actual situation.
The buffering component 81 is made of a material with certain elasticity, and can be silicone adhesive, and is used for filling and supporting the step area 7 and preventing the display panel 2 at the position corresponding to the step area 7 from being easily broken, optionally, the buffering component 8 can be designed in an intermittent manner, so that the material consumption of the buffering component 8 can be reduced, and the process cost is reduced.
The array substrate 6 in the display device further comprises a flexible circuit board 13, wherein the flexible circuit board 13 is positioned on one side of the step area 7 close to the cover plate 1; the flexible circuit board 13 may be a Y-type flexible circuit board, which includes a first sub flexible circuit board 131 and a second sub flexible circuit board 132; further, the buffer component 8 may include a first sub buffer component 82 and a second sub buffer component 83, in the direction perpendicular to the plane of the cover plate 1, the first sub buffer component 82 at least partially overlaps with the first sub flexible circuit board 131, and the second sub buffer component 83 at least partially overlaps with the second sub flexible circuit board 132, preferably, in the direction perpendicular to the plane of the cover plate 1, the buffer component covers the Y-type circuit board, which may function to protect the traces on the Y-type circuit board and may also function to support the step area; meanwhile, the consumption of the material of the buffer part 8 can be saved, and the process cost can be reduced.
In some alternative embodiments, with continuing reference to fig. 5 and 7, fig. 5 is a schematic structural diagram of another display device provided by the present invention, and fig. 7 is another cross-sectional view along direction K-K' in fig. 5. In the display device 200 provided in this embodiment, the insulating layer 9 includes the opening 91, and the opening 91 and the sub-buffer member 81 do not at least partially overlap in a direction perpendicular to the plane of the cover plate 1. Fig. 7 only illustrates the completely non-overlapping condition, and certainly, the completely non-overlapping condition may also be partially overlapped, the isolation layer 9 may prevent the silicone oil in the buffer component 8 from entering the ink layer 5, and in this embodiment, no specific requirement is made on the overlapping degree of the opening 91 and the sub-buffer component 81, and the overlapping degree may be set according to actual conditions.
It is understood that, in a direction perpendicular to the plane of the cover plate 1, the isolation layer 9 completely covers the buffer member 8 to prevent the silicone oil in the buffer member 8 from penetrating the ink layer. When the buffering member 8 is designed intermittently, the insulating layer 8 may include an opening 91, and in a direction perpendicular to the plane of the cover plate 1, the opening 91 is not overlapped with the sub-buffering member 81, so that the silicone oil in the buffering member 8 can be prevented from penetrating the ink layer while the amount of the material of the insulating layer 9 can be reduced.
In some alternative embodiments, with continuing reference to fig. 5 and 8, fig. 5 is a schematic structural diagram of another display device provided by the present invention, and fig. 8 is another cross-sectional view along direction K-K' in fig. 5.
The present embodiment provides the display device 200 in which the buffer member 8 is disposed on the side of the step region 7 close to the cover plate 1. The buffering component 8 comprises a plurality of sub-buffering components 81, the buffering components 81 are made of materials with certain elasticity and used for filling and supporting the step areas 7 and preventing the display panel 2 at the corresponding position of the step areas 7 from being easily broken, optionally, the buffering components 8 can be designed in an intermittent mode, the material consumption of the buffering components 8 can be saved, and the process cost is reduced.
It is understood that the insulating layer 9 covering the cushioning member 8 in a direction perpendicular to the plane of the cover plate 1 may serve to prevent the silicone oil in the cushioning member 8 from penetrating the ink layer. When the cushioning member 8 is designed intermittently, the insulating layer 9 may also be designed intermittently, such that the insulating layer 9 includes a plurality of sub-insulating members 92, and the sub-insulating members 92 at least partially overlap with the sub-cushioning members 81 in a direction perpendicular to the plane of the cover plate 1. Further, in the direction perpendicular to the plane of the cover plate 1, the sub insulating member 92 covers the cushioning member 81, and the silicone oil in the cushioning member 8 can be prevented from penetrating the ink layer. Fig. 8 only illustrates the completely overlapped condition, and certainly, the completely overlapped condition may also be partially overlapped, the isolation layer 9 may prevent the silicone oil in the buffer component 8 from entering the ink layer 5, and in this embodiment, no specific requirement is made on the overlapping degree of the buffer component 8 and the isolation layer 9, and the arrangement may be according to the actual situation.
Optionally, when the flexible circuit board 13 is a Y-type flexible circuit board, the buffer member 8 may include a first sub buffer member 82 and a second sub buffer member 83, further, the isolation layer 9 may include a first sub isolation layer 93 and a second sub isolation layer 94, in a direction perpendicular to the plane of the cover plate 1, the first sub isolation layer 93 covers the first sub buffer member 82, and the second sub isolation layer 94 covers the second sub buffer member 83, so that the silicone oil in the buffer member 8 can be prevented from penetrating the ink layer 5 while the amount of the material of the isolation layer 9 can be reduced.
In some alternative embodiments, with continuing reference to fig. 3, 4 and 9, fig. 3 is a schematic structural view of a display device provided by the present invention, fig. 4 is a cross-sectional view taken along direction M-M' of fig. 3, and fig. 9 is a partial schematic view of a cover plate in a display device provided by the present invention.
In the direction from the step area 7 to the display area AA of the display device 200 in this embodiment, the insulating layer 9 includes a first side 95 disposed near one end of the display area AA, and the ink layer 5 includes a second side 51 disposed near the display area AA;
the distance between the orthographic projection of the first side edge 95 on the plane of the display panel 2 and the orthographic projection of the second side edge 51 on the plane of the display panel 2
Where a is the formation tolerance of the ink layer 5 and b is the formation tolerance of the insulating layer 9. The position relation of the isolation layer 9 and the ink layer 5 is defined, in the direction perpendicular to the plane of the display panel 2, the distance between the isolation layer 9 and the ink layer 5 close to one side of the display area AA is not less than the square and the square of the formation tolerance of the ink layer 5 and the formation tolerance of the isolation layer 9, and the isolation layer 9 can be prevented from extending to the position which is not covered by the ink layer 5, namely, entering the display area AA to influence the display.
In some alternative embodiments, with continued reference to fig. 3, 9 and 10, fig. 10 is a cross-sectional view taken along line M-M' of fig. 3.
The display device 200 in the present embodiment: the display device further comprises optical cement 12, wherein the optical cement 12 is located between the cover plate 1 and the display panel 2 and used for being attached to the display device 200;
also comprises a backlight module 10 and a flexible circuit board 13,
the backlight module 10 is attached to one side of the display panel 2, which is far away from the cover plate 1, and the backlight module 10 comprises a positioning mark 14;
the step area 7 comprises a binding area 71, the flexible circuit board 13 is bound in the binding area 71, the flexible circuit board 13 comprises a first flat part 133, a bent part 134 and a second flat part 135, the bent part 134 is located between the first flat part 133 and the second flat part 135, the first flat part 133 is attached to the array substrate 6, and the second flat part 135 is bent to one side, far away from the cover plate 1, of the backlight module 10 through the bent part 134;
the array substrate 6 further includes scan lines 16 arranged along the first direction X and the second direction Y.
The step area 7 further includes an edge 72, the edge 72 is parallel to the second direction Y, and on an area extending from the binding area 71 to the edge 72, the isolation layer 9 includes a third side edge 96 disposed away from one end of the display area AA, and the cover plate 1 includes a fourth side edge 52 disposed away from the display area AA;
the distance between the orthographic projection of the third side 96 on the plane of the display panel 2 and the orthographic projection of the fourth side 52 on the plane of the display panel 2
Wherein, a is a distance between an orthographic projection of the fourth side 52 of the cover plate 1 on the plane of the display panel 2 and an orthographic projection of the bending portion 134 of the flexible circuit board 13 on the plane of the display panel 2 in a direction from the display area AA to the non-display area BB, P is a distance between the positioning mark 14 and the second flat portion 135 in a direction from the display area AA to the step area 7, G is a first accumulated tolerance, and the first accumulated tolerance G includes a bonding tolerance of the display panel 2 and the backlight module 10, and the positioning mark14, and the formation of the insulating layer 9, and, further,
where e is a lamination tolerance of the display panel 2 and the backlight module 10, q is a tolerance of the positioning mark 14, f is an outer shape tolerance of the backlight module 10, b is a formation tolerance of the insulating layer 9, g is an outer shape tolerance of the cover plate 1, and h is a lamination tolerance of the cover plate 1 and the display panel 2. The position relation between the isolation layer 9 and the cover plate 1 is defined, so that the isolation layer 9 can be prevented from extending out of the area covered by the cover plate 1;
it is understood that the display device 200 further includes a driving chip (not shown), and the driving chip includes two configurations: the Chip On Glass is hereinafter referred to as COG and the Chip On FPC is hereinafter referred to as COF, wherein the COG is formed by directly arranging a driving Chip On a Glass substrate of the array substrate 6; the COF form is that the driving chip is arranged on the flexible circuit board, the limitation on the relation of the isolation layers is suitable for the COG and the COF form, and the COF form is not specifically required for the arrangement form of the driving chip and can be arranged according to actual conditions.
In some alternative embodiments, with continuing reference to fig. 9, 11 and 12, fig. 11 is a schematic structural view of another display device provided by the present invention, and fig. 12 is a cross-sectional view taken along W-W' of fig. 11.
The display device 200 in the present embodiment: the array substrate further comprises a driving chip 15, wherein the driving chip 15 is positioned in the step area 7 of the array substrate 6;
the step area 7 further comprises non-binding areas 73, in the second direction Y, the non-binding areas 73 are located at two sides of the binding area 71, and an orthographic projection of the non-binding areas 73 on the plane where the cover plate 1 is located is not overlapped with an orthographic projection of the flexible circuit board 13 on the plane where the cover plate 1 is located;
in the area extending from the unbound region 73 to the edge 72, the isolation layer 9 includes a fifth side 97 disposed away from one end of the display area AA, the fifth side 97 is connected to the third side 96, and the distance between the orthographic projection of the fifth side 97 on the plane of the display panel 2 and the orthographic projection of the fourth side 52 on the plane of the display panel 2
Wherein C is a distance between an orthographic projection of the fourth side 52 of the cover plate 1 on the plane of the display panel 2 and an orthographic projection of the backlight module 10 on the plane of the display panel 2 in a direction from the display area AA to the non-display area BB, H is a second cumulative tolerance, and the second cumulative tolerance includes a tolerance for attaching the display panel 2 and the backlight module 10 and a tolerance for forming the insulating layer 9. Further, in the above-mentioned case,
wherein e is the lamination tolerance of the display panel 2 and the backlight module 10, f is the appearance tolerance of the backlight module 10, b is the formation tolerance of the insulating layer 9, g is the appearance tolerance of the cover plate 1, and h is the lamination tolerance of the cover plate 1 and the display panel 2. Defining the positional relationship of the insulating layer 9 and the cover plate 1 can prevent the insulating layer 9 from extending beyond the area covered by the cover plate 1.
It is understood that the driving chip 15 is directly disposed at the position of the array substrate 6 in the present embodiment, i.e. in the form of COG, i.e. the above definition of the relation of the isolation layers is applicable to the form of COG.
In some alternative embodiments, reference is continued to fig. 3 and 9.
In the display device 200 of the present embodiment, the length of the orthographic projection of the bending portion 134 of the flexible circuit board 13 on the plane of the cover plate 1
Meanwhile, the length E is the length of the isolation layer at a distance of B1 from the orthographic projection of the third side 96 of the isolation layer 9 on the plane of the display panel 2 and the orthographic projection of the fourth side 52 of the cover plate 1 on the plane of the display panel 2; wherein, M is the length of the orthographic projection of the flexible circuit board 13 on the plane of the cover plate 1, I is a first manufacturing tolerance, and the first manufacturing tolerance comprises the forming tolerance of the isolation layer 9, the attaching tolerance of the cover plate 1 and the display panel 2, and the attaching tolerance of the display panel 2 and the backlight module 10;
further, in the above-mentioned case,
wherein e is the lamination tolerance of the display panel 2 and the backlight module 10, b is the formation tolerance of the insulating layer 9, and h is the lamination tolerance of the cover plate 1 and the display panel 2. The length of the orthographic projection of the bent part 134 of the flexible circuit board 13 on the plane of the cover plate 1 is defined, so that the range which can be covered by the isolation layer 9 can be further defined, and the isolation layer 9 is prevented from extending out of the area covered by the flexible circuit board 13.
The length of the orthographic projection of the isolation layer 9 on the plane of the cover plate 1
Wherein, N is the length of the orthographic projection of the backlight module 10 at the position corresponding to the step area 7 on the plane where the cover plate 1 is located, and J is a second manufacturing tolerance, and the second manufacturing tolerance comprises the forming tolerance of the isolation layer 9, the attaching tolerance of the cover plate 1 and the display panel 2, the attaching tolerance of the display panel 2 and the backlight module 10, and the appearance tolerance of the backlight module 10. Further, in the above-mentioned case,
where e is a bonding tolerance of the display panel 2 and the backlight module 10, f is an outline tolerance of the backlight module 10, b is a forming tolerance of the insulating layer 9, and h is a bonding tolerance of the cover plate 1 and the display panel 2. Defining the positional relationship of the insulating layer 9 and the cover plate 1 can prevent the insulating layer 9 from extending beyond the area covered by the cover plate 1.
The definition of the relation is suitable for COG and COF forms, and the invention does not make specific requirements on the arrangement form of the driving chip and can be arranged according to the actual situation.
As can be seen from the above embodiments, the display device provided by the present invention at least achieves the following beneficial effects:
the display device provided by the invention at least realizes the following beneficial effects: compared with the prior art, in order to solve under the condition that has improved buffering part and apron overlap area ratio, the area of contact increase of the printing ink layer on buffering part and the apron leads to the silicone oil among the buffering part to permeate into the possibility increase on printing ink layer, and influences the problem that the display device structure adhered. The invention provides a display device, wherein an isolation layer is arranged on one side of an ink layer close to a buffer part, the orthographic projection of the isolation layer on the plane of a cover plate is at least partially overlapped with the orthographic projection of the buffer part on the plane of the cover plate, namely, the isolation layer is clamped between the buffer part and the ink layer, and the orthographic projection of the isolation layer on the plane of the cover plate is at least partially overlapped with the orthographic projection of the buffer part on the plane of the cover plate, so that the silicone oil in the buffer part is prevented from permeating the ink layer under the conditions of not reducing the overlapping area ratio of the buffer part and the cover plate and not changing the main body cause value of the ink layer, the service life of the display device can be prolonged, and the quality of the display device can.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (12)
1. The display device is characterized by comprising a cover plate and a display panel which are oppositely arranged;
the cover plate is positioned on the light emitting side of the display panel and comprises a non-light-transmitting area and a light-transmitting area, and an ink layer is arranged in the non-light-transmitting area;
the display panel comprises an array substrate, the array substrate comprises a display area and a non-display area surrounding the display area, the display area corresponds to the light-transmitting area, and the non-display area corresponds to the non-light-transmitting area; the non-display area comprises a step area, and a buffer part is arranged on one side, close to the cover plate, of the step area;
and arranging an isolation layer on one side of the ink layer close to the buffer part, wherein the orthographic projection of the isolation layer on the plane of the cover plate is at least partially overlapped with the orthographic projection of the buffer part on the plane of the cover plate.
2. The display device according to claim 1, wherein an orthogonal projection of the buffer member on a plane of the cover plate is located within an orthogonal projection of the insulating layer on a plane of the cover plate.
3. The display device as claimed in claim 1, wherein the isolation layer is disposed on a side of the ink layer adjacent to the buffer member by silk-screening or attaching.
4. The display device according to claim 1, wherein the insulating layer does not absorb silicone oil in the ink layer.
5. The display device according to claim 1, wherein the dyne value of the insulating layer is 28A or less.
6. The display device according to claim 1, wherein the buffer member includes a plurality of sub-buffer members, and the sub-buffer members at least partially overlap the insulating layer in a direction perpendicular to a plane of the cover plate.
7. The display device according to claim 6, wherein the insulating layer includes an opening that does not at least partially overlap with the sub-buffer member in a direction perpendicular to a plane in which the cover plate is located.
8. The display device according to claim 6, wherein the insulating layer includes a plurality of sub-insulating members at least partially overlapping the sub-buffer members in a direction perpendicular to a plane in which the cover plate is located.
9. The display device according to claim 2, wherein the barrier layer includes a first side disposed near one end of the display region in a direction from the step region toward the display region, and the ink layer includes a second side disposed near the display region;
the distance between the orthographic projection of the first side edge on the plane where the display panel is located and the orthographic projection of the second side edge on the plane where the display panel is located
Wherein a is a forming tolerance of the ink layer, and b is a forming tolerance of the insulating layer.
10. The display device according to claim 1, further comprising a backlight module, a flexible wiring board,
the backlight module is attached to one side of the display panel, which is far away from the cover plate, and comprises a positioning mark;
the step area comprises a binding area, the flexible circuit board is bound in the binding area and comprises a first flat part, a bent part and a second flat part, the bent part is located between the first flat part and the second flat part, the first flat part is attached to the array substrate, and the second flat part is bent to one side, away from the cover plate, of the backlight module through the bent part;
the step area further comprises an edge, the edge is parallel to a scanning line in the display panel and extends from the binding area to the edge, the isolation layer comprises a third side edge far away from one end of the display area, and the cover plate comprises a fourth side edge far away from the display area;
the distance between the orthographic projection of the third side edge on the plane of the display panel and the orthographic projection of the fourth side edge on the plane of the display panel
Wherein, a is a distance between an orthographic projection of the fourth side of the cover plate on a plane where the display panel is located and an orthographic projection of the bent portion of the flexible circuit board on the plane where the display panel is located from the display area to the non-display area, P is a distance between the positioning mark and the second flat portion from the display area to the step area, and G is a first accumulated tolerance including a fitting tolerance of the display panel and the backlight module, a tolerance of the positioning mark, and a forming tolerance of the isolation layer.
11. The display device according to claim 10, further comprising a driving chip located in the step area of the array substrate;
the step area further comprises a non-binding area, the non-binding area is located on two sides of the binding area in the extension direction of the scanning line, and the orthographic projection of the non-binding area on the plane where the cover plate is located is not overlapped with the orthographic projection of the flexible circuit board on the plane where the cover plate is located;
the insulating layer comprises a fifth side edge which is far away from one end of the display area and is arranged on an area extending from the non-binding area to the edge, the fifth side edge is connected with the third side edge, and the distance between the orthographic projection of the fifth side edge on the plane where the display panel is located and the orthographic projection of the fourth side edge on the plane where the display panel is located
Wherein C is a distance between an orthographic projection of the fourth side of the cover plate on the plane of the display panel and an orthographic projection of the backlight module on the plane of the display panel in a direction from the display area to the non-display area, H is a second accumulated tolerance, and the second accumulated tolerance includes a fitting tolerance of the display panel and the backlight module and a forming tolerance of the insulating layer.
12. The display device according to claim 10, wherein the length of the orthographic projection of the bent portion of the flexible circuit board on the plane of the cover plate
Wherein, M is the length of the orthographic projection of the flexible circuit board on the plane of the cover plate, I is a first manufacturing tolerance, and the first manufacturing tolerance comprises the forming tolerance of the isolation layer, the attaching tolerance of the cover plate and the display panel, and the attaching tolerance of the display panel and the backlight module;
the length of the orthographic projection of the isolation layer on the plane of the cover plate
And N is the length of the orthographic projection of the backlight module at the position corresponding to the step area on the plane where the cover plate is located, and J is a second manufacturing tolerance, wherein the second manufacturing tolerance comprises the forming tolerance of the isolation layer, the attaching tolerance of the cover plate and the display panel, the attaching tolerance of the display panel and the backlight module and the appearance tolerance of the backlight module.
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