CN114371793A - Narrow-frame display module and liquid crystal display device - Google Patents
Narrow-frame display module and liquid crystal display device Download PDFInfo
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- CN114371793A CN114371793A CN202111592086.8A CN202111592086A CN114371793A CN 114371793 A CN114371793 A CN 114371793A CN 202111592086 A CN202111592086 A CN 202111592086A CN 114371793 A CN114371793 A CN 114371793A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 74
- 239000000758 substrate Substances 0.000 claims abstract description 98
- 238000010586 diagram Methods 0.000 description 15
- RXRLRYZUMSYVLS-UHFFFAOYSA-N 1,2,3,4-tetrachloro-5-(2,4,6-trichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=CC(Cl)=C(Cl)C(Cl)=C1Cl RXRLRYZUMSYVLS-UHFFFAOYSA-N 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012536 packaging technology Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000010408 film Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
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- 230000002708 enhancing effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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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
- G02F1/13338—Input devices, e.g. touch panels
-
- 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
- G02F1/133514—Colour filters
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
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Abstract
The embodiment of the invention relates to a narrow-frame display module and a liquid crystal display device comprising the same, wherein the narrow-frame display module comprises an array substrate, the array substrate comprises a display area and a binding area, the binding area comprises a first surface and a second surface which are deviated from each other and a side surface connected between the first surface and the second surface, and the second surface of the binding area is arranged adjacent to the outer surface of the display area; the narrow-frame display module further comprises a first insulating layer, a first lead layer, a second insulating layer, a second lead layer and a third insulating layer which are sequentially arranged outwards from the binding area, wherein one end of each of the first insulating layer, the first lead layer, the second insulating layer, the second lead layer and the third insulating layer is arranged on the first surface and is bent and extended through the side surface to enable the other end of each of the first insulating layer, the first lead layer, the second insulating layer, the second lead layer and the third insulating layer to be arranged on the second surface. The narrow-frame display module and the liquid crystal display device can realize a narrow frame.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a narrow-frame display module and a liquid crystal display device with the same.
Background
Currently, liquid crystal display technology has been widely applied to large-sized display panels such as mobile terminals and televisions. A liquid crystal display device generally includes an array substrate, a color filter substrate, and a liquid crystal layer interposed therebetween. A pixel electrode and a common electrode are formed on the substrate, and rotation of liquid crystal molecules of the liquid crystal layer is controlled by applying a driving voltage therebetween, thereby changing light transmittance. The touch control layer is embedded in the liquid crystal display device, so that the touch control liquid crystal display device can be further formed. At present, the frame of the touch liquid crystal display device gradually develops from a narrow frame to a full-screen frameless direction, and narrow-frame and even frameless products are more and more favored by consumers.
Fig. 1 is a schematic cross-sectional view of a conventional touch lcd device, which includes an upper substrate 1, a lower substrate 2 disposed opposite to the upper substrate 1, and a liquid crystal layer (not shown) disposed between the upper substrate 1 and the lower substrate 2, where the upper substrate 1 generally refers to a color filter substrate, the lower substrate 2 refers to an array substrate, a metal trace 11 (touch signal lead) for transmitting a touch sensing signal is disposed on a side of the upper substrate 1 near a user, the metal trace 11 is coupled to a first flexible circuit board 12, a display integrated circuit 21 (driving circuit for display) is disposed on a side of the lower substrate 2 near the upper substrate 1, the display integrated circuit 21 is coupled to a second flexible circuit board 22, the first flexible circuit board 12 and the second flexible circuit board 22 are respectively disposed on different planes, and two flexible circuit board Bonding (FPC Bonding) processes are respectively connected to the upper substrate 1 and the lower substrate 2, the upper substrate 1 is further provided with a polarizer (not shown), the distance between the polarizer and the polarizer needs to be considered to prevent the polarizer from being scalded, and for the cog (chip On glass) packaging technology, the lower substrate 2 also needs to consider the chip position, so that the structure cannot achieve an extremely narrow frame, and how to have a narrower frame is an urgent problem to be solved at present.
Disclosure of Invention
The invention aims to provide a narrow-frame display module and a liquid crystal display device, which can realize a narrow frame.
The solution of the invention is: the array substrate comprises a display area and a binding area, the binding area comprises a first surface, a second surface and a side surface, the first surface and the second surface are deviated from each other, the side surface is connected between the first surface and the second surface, and the second surface of the binding area is arranged adjacent to the outer surface of the display area; the narrow-frame display module further comprises a first insulating layer, a first lead layer, a second insulating layer, a second lead layer and a third insulating layer which are sequentially arranged outwards from the binding area, wherein one end of each of the first insulating layer, the first lead layer, the second insulating layer, the second lead layer and the third insulating layer is arranged on the first surface and is bent and extended through the side surface to enable the other end of each of the first insulating layer, the first lead layer, the second insulating layer, the second lead layer and the third insulating layer to be arranged on the second surface.
Further, the first lead layer comprises a plurality of first leads, the second lead layer comprises a plurality of second leads, and the plurality of first leads and the plurality of second leads are parallel to each other and are alternately arranged in a direction perpendicular to the first surface; each first lead is provided with a first binding end on the second surface, each second lead is provided with a second binding end on the second surface, and the first binding ends and the second binding ends are parallel to each other and are alternately arranged in the direction vertical to the second surface.
Further, the first lead layer includes a plurality of first leads, the second lead layer includes a plurality of second leads, and the plurality of first leads and the plurality of second leads are stacked up and down in a direction perpendicular to the first surface; each first lead is provided with a first binding end on the second surface, each second lead is provided with a second binding end on the second surface, and the first binding ends and the second binding ends are alternately arranged in tandem in the direction perpendicular to the second surface.
Furthermore, the side edge of the binding area of the array substrate is also provided with an inward concave notch, and the side surface is a surface for forming the notch; the first lead layer and the second lead layer are arranged at positions corresponding to the notches.
Furthermore, a touch electrode layer is arranged on the array substrate and is arranged on the outer surface of the display area.
Furthermore, the narrow-frame display module further comprises a shielding layer, wherein the shielding layer is arranged between the touch electrode layer and the outer surface of the display area and extends to a position between the binding area and the first insulating layer.
Further, the shielding layer is disposed on the first surface, or the shielding layer is disposed on both the first surface and the side surface.
The invention also relates to a liquid crystal display device which comprises the narrow-frame display module.
Furthermore, the liquid crystal display device also comprises a liquid crystal layer, a color filter substrate and a backlight module, wherein the liquid crystal layer is clamped between the array substrate and the color filter substrate, and the backlight module is arranged on one side of the color filter substrate, which is deviated from the liquid crystal layer; the liquid crystal display device further includes at least one flexible circuit board, and the first lead layer and/or the second lead layer are coupled to the one or more flexible circuit boards.
Further, a flexible circuit board is coupled to the second surface of the bonding region.
Further, the flexible circuit board includes a first flexible circuit board and a second flexible circuit board; the first flexible circuit board is coupled to the second surface of the binding region, and the second flexible circuit board is coupled to the first surface of the binding region; alternatively, the first flexible circuit board and the second flexible circuit board are both coupled to the second surface of the bonding region.
Further, the liquid crystal display device also comprises a driving chip and a PCB board; the PCB is arranged on one side of the backlight module, which is far away from the color filter substrate, and one end of the flexible circuit board, which is far away from the array substrate, is connected to the PCB; the driving chip is arranged on the first surface of the array substrate or on the flexible circuit board positioned on one side of the backlight module departing from the color filter substrate.
The array substrate of the narrow-frame display module is provided with a binding region, the binding region comprises a first surface and a second surface which are opposite to each other, and a side surface connected between the first surface and the second surface, the narrow-frame display module further comprises a first insulating layer, a first lead layer, a second insulating layer, a second lead layer and a third insulating layer which are sequentially arranged from the binding region to the outside, and one end of each of the first insulating layer, the first lead layer, the second insulating layer, the second lead layer and the third insulating layer is arranged on the first surface and the other end of each of the first insulating layer, the first lead layer, the second insulating layer, the second lead layer and the third insulating layer is arranged on the second surface through bending and extending of the side surface. All the leads and the binding end positions connected with the leads are not limited on the surface of the array substrate, and the flexible circuit board and the wire outlet end are also bonded in a staggered and joint mode, so that the area of the frame is effectively reduced, and the narrower frame can be realized.
The foregoing description is only an overview of the technical solutions of the present invention, and can be implemented according to the content of the description in order to make the technical means of the present invention more clearly understood, and in order to make other objects, features, and advantages of the narrow-frame display module and the liquid crystal display device of the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a conventional touch liquid crystal display device.
Fig. 2 is a schematic structural diagram of a narrow-bezel display module according to a first embodiment of the invention.
Fig. 3 is a schematic structural diagram of another view angle of the narrow bezel display module according to the first embodiment of the present invention.
Fig. 4 is a partial cross-sectional view of a narrow bezel display module according to a first embodiment of the present invention.
FIG. 5 is a schematic cross-sectional view illustrating an arrangement of a first lead layer and a second lead layer of the narrow-bezel display module according to the present invention.
Fig. 6 is a schematic view illustrating an arrangement of first and second binding ends corresponding to connection with the first and second lead layers of fig. 5.
FIG. 7 is a cross-sectional view of another arrangement of the first lead layer and the second lead layer of the narrow-bezel display module according to the present invention.
Fig. 8 is a schematic view illustrating an arrangement of first and second binding ends corresponding to connection with the first and second lead layers of fig. 7.
Fig. 9 is a schematic structural diagram of a narrow-bezel display module applied to a liquid crystal display device according to an embodiment of the invention.
Fig. 10 is a schematic structural diagram of a narrow-bezel display module applied to a liquid crystal display device according to an embodiment of the invention.
Fig. 11 is a schematic structural diagram of a narrow-bezel display module according to a second embodiment of the invention.
Fig. 12 is a schematic structural diagram of another view angle of the narrow bezel display module according to the second embodiment of the present invention.
Fig. 13 is a schematic structural diagram of another view angle of the narrow-bezel display module according to the second embodiment of the present invention.
FIG. 14 is a schematic view of a liquid crystal display device according to a third embodiment of the present invention.
Fig. 15 is a schematic structural view of a liquid crystal display device in a fourth embodiment of the present invention.
Fig. 16 is a schematic structural view of a liquid crystal display device in a fifth embodiment of the present invention.
Fig. 17 is a schematic structural view of a liquid crystal display device in a sixth embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the narrow-bezel display module and the liquid crystal display device according to the present invention with reference to the accompanying drawings and the preferred embodiments is as follows:
the foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings. While the present invention has been described in connection with the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.
Fig. 2 is a schematic structural diagram of a narrow-bezel display module according to a first embodiment of the invention. Fig. 3 is a schematic structural diagram of another view angle of the narrow bezel display module according to the first embodiment of the present invention. Fig. 4 is a partial cross-sectional view of a narrow bezel display module according to a first embodiment of the present invention. Referring to fig. 2 to 4, the display module with a narrow bezel according to the embodiment of the invention includes an array substrate 110, the array substrate 110 has a display area and a binding area 111, the binding area 111 includes a first surface 11a and a second surface 11b facing away from each other, and a side surface 11c connected between the first surface 11a and the second surface 11 b. The second surface 11b of the binding region 111 is disposed adjacent to the outer surface of the display region. The narrow-bezel display module further includes a first insulating layer 121, a first lead layer 122, a second insulating layer 123, a second lead layer 124, and a third insulating layer 125, which are sequentially disposed outward from the bonding region, wherein the first insulating layer 121, the first lead layer 122, the second insulating layer 123, the second lead layer 124, and the third insulating layer 125 are all disposed at the first surface 11a at one end, and then bent and extended through the side surface 11c so that the other end is disposed at the second surface 11 b.
The present invention divides various signal leads on the array substrate 110 into two layers, so that the first lead layer 122 and the second lead layer 124 are arranged in a staggered manner, all lead positions are not limited to the inner surface of the array substrate 110, and can also extend to the outer surface of the array substrate 110, and the flexible circuit board 127 and the lead-out end can also be bonded in a staggered manner (FPC Bonding), that is, the flexible circuit board 127 can be bonded with the first lead layer 122 and/or the second lead layer 124 on the outer surface of the array substrate 110, thereby effectively reducing the area of the frame, and compared with the prior art, realizing a narrower frame.
In the present embodiment, the various signal leads on the array substrate 110 are, for example, driving lines of the array substrate 110 for displaying.
FIG. 5 is a schematic cross-sectional view illustrating an arrangement of a first lead layer and a second lead layer of the narrow-bezel display module according to the present invention. As shown in fig. 5, the first lead layer 122 includes a plurality of first leads 1221, and the second lead layer 124 includes a plurality of second leads 1241. Here, the first and second leads 1221 and 1241 are parallel to and alternately arranged with respect to each other in a direction perpendicular to the first surface 11a, and it is understood that the first and second leads 1221 and 1241 are also parallel to and alternately arranged with respect to each other in a direction perpendicular to the side surface 11c and the second surface 11 b. The first and second leads 1221 and 1241 are alternately arranged, so that the manufacturing process is simpler and the production is facilitated.
Each of the first leads 1221 is provided with a first binding end 1222 at the second surface 11b, and each of the second leads 1241 is provided with a second binding end 1242 at the second surface 11 b. Fig. 6 is a schematic view illustrating an arrangement of first and second binding ends corresponding to connection with the first and second lead layers of fig. 5. That is, the layout of the first and second bonding terminals 1222 and 1242 connected to the first and second lead layers 122 and 124 in fig. 5, as shown in fig. 6, the first and second bonding terminals 1222 and 1242 are also parallel to each other and alternately arranged in a direction perpendicular to the second surface 11 b.
FIG. 7 is a cross-sectional view of another arrangement of the first lead layer and the second lead layer of the narrow-bezel display module according to the present invention. As shown in fig. 7, the first lead layer 122 includes a plurality of first leads 1221, and the second lead layer 124 includes a plurality of second leads 1241. Here, the first lead 1221 and the second lead 1241 are stacked up and down in a direction perpendicular to the first surface 11a, and it is understood that the first lead 1221 and the second lead 1241 are also stacked up and down in a direction perpendicular to the side surface 11c and the first surface 11 a. The first lead 1221 and the second lead 1241 are stacked up and down, so that the frame can be further reduced, and the effect of extremely narrow frame is realized.
Each of the first leads 1221 is provided with a first binding end 1222 at the second surface 11b, and each of the second leads 1241 is provided with a second binding end 1242 at the second surface 11 b. Fig. 8 is a schematic view illustrating an arrangement of first and second binding ends corresponding to connection with the first and second lead layers of fig. 7. That is, as shown in fig. 8, since the first and second leads 1221 and 1241 are stacked up and the first and second binding ends 1222 and 1242 connected to the flexible circuit board 127 need to be exposed, the first and second binding ends 1222 and 1242 are alternately arranged in a front-to-back direction perpendicular to the second surface 11b, that is, all the first binding ends 1222 are arranged in a row, and all the second binding ends 1242 are arranged in a row and arranged in a front-to-back direction, as shown in fig. 7.
Fig. 9 is a schematic structural diagram of a liquid crystal display device to which the narrow-bezel display module of the embodiment of the invention is applied, and fig. 10 is a schematic structural diagram of a liquid crystal display device to which the narrow-bezel display module of the embodiment of the invention is applied. Referring to fig. 9 and 10, the array substrate 110 of the narrow-bezel display module further includes a touch electrode layer 160 and an upper polarizer 170. The touch electrode layer 160 is disposed between the upper polarizer 170 and the array substrate 110, i.e., on the outer surface of the display region.
The structure of the touch electrode layer 160 is well known to those skilled in the art, and includes a driving electrode and a sensing electrode that are insulated from each other. The driving electrode and the sensing electrode may be disposed on the same layer or on different layers, which is not described herein again.
The narrow-bezel display module further includes a shielding layer 126, and the shielding layer 126 is disposed between the touch electrode layer and the array substrate 110, i.e., between the touch electrode layer and the outer surface of the display region, and extends to between the bonding region 111 and the first insulating layer 121. Specifically, the shielding layer 126 is a transparent electrode, for example, made of an ITO material, and the shielding layer 126 can isolate the interference signal on the array substrate 110, prevent the signals on the first and second lead layers 122 and 124 from being interfered, and contribute to improving the touch performance. Meanwhile, extending the shielding layer 126 between the bonding region 111 and the first insulating layer 121 may increase the area of the shielding layer 126, further enhancing the shielding effect.
Further, the shielding layer 126 also extends to be disposed on the first surface 11a and the side surface 11c (as shown in fig. 9). Because the requirement of the side routing for the process is strict, burrs may exist on the side surface of the conventional glass, and although the adverse effect caused by the burrs of the glass can be reduced by arranging the first insulating layer 121, if the shielding layer 126 is extended to the first surface 11a and the side surface 11c, the surface of the side surface 11c can be more flat, and then the first insulating layer 121, the first lead layer 122, the second insulating layer 123, the second lead layer 124 and the third insulating layer 125 are arranged on the upper surface of the shielding layer, the routing of the first lead layer 122 and the second lead layer 124 can be firmer, and the stability of the narrow-frame display module is further increased.
In other embodiments, the shielding layer 126 may be disposed only on the first surface 11a (as shown in fig. 10).
Further, the narrow bezel display module further includes at least one flexible circuit board 127, and the first lead layer 122 and/or the second lead layer 124 are coupled to one or more flexible circuit boards 127. The specific method for disposing the flexible circuit board 127 is well known to those skilled in the art and will not be described herein.
In this embodiment, the touch signal lead wire led out from the touch electrode layer 160 may also be coupled to the flexible circuit board 127, so that one flexible circuit board Bonding process may be reduced, and the production process and the manufacturing cost may be further simplified.
In other embodiments, the touch signal lead wire led out from the touch electrode layer 160 may also be coupled to other separate flexible circuit boards, which is not limited herein.
Fig. 11 is a schematic structural diagram of a narrow-bezel display module according to a second embodiment of the present disclosure, fig. 12 is a schematic structural diagram of another viewing angle of the narrow-bezel display module according to the second embodiment of the present disclosure, and fig. 13 is a schematic structural diagram of another viewing angle of the narrow-bezel display module according to the second embodiment of the present disclosure. Referring to fig. 11 to 13, the narrow-bezel display module according to the second embodiment of the invention has substantially the same structure as the narrow-bezel display module according to the first embodiment, except that the side of the bonding region 111 of the array substrate 110 has a concave notch 11d, and the side surface 11c is a surface forming the notch 11 d; the first and second lead layers 122 and 124 are disposed at positions corresponding to the notches 11 d.
The concave notch 11d is formed on the side of the array substrate 110, so that the area occupied by the first lead layer 122 and the second lead layer 124 can be further reduced, and a narrower frame can be realized. Meanwhile, through the arrangement of the notch 11d, the side wiring can be physically protected, the practicability of the side wiring is further improved, and the practicability is high.
The embodiment of the invention also relates to a liquid crystal display device which comprises the narrow-frame display module. The liquid crystal display device includes a flexible circuit board 127.
Further, the flexible circuit board 127 is coupled on the first surface 11a of the bonding region 111 of the array substrate 110.
Further, the flexible circuit board 127 includes a first flexible circuit board 1271 and a second flexible circuit board 1272, the first flexible circuit board 1271 is coupled to the second surface 11b of the bonding region 111 of the array substrate 110, and the second flexible circuit board 1272 is coupled to the first surface 11a of the bonding region 111 of the array substrate 110; alternatively, the first flexible circuit board 1271 and the second flexible circuit board 1272 are both coupled to the second surface 11b of the bonding region 111 of the array substrate 110.
Further, the liquid crystal display device further includes a driving chip 181 and a PCB 182; the PCB 182 is disposed on a side of the backlight module 150 away from the color filter substrate 140, and one end of the flexible circuit board 127 away from the array substrate 110 is connected to the PCB 182; the driving chip 181 is disposed on the first surface 11a of the array substrate 110 or on the flexible circuit board 127 at a side of the backlight module 150 facing away from the color filter substrate 140.
Further, the liquid crystal display device further includes a dispensing point 190, and the dispensing point 190 is disposed on the side surface 11c and below the flexible circuit board 127. The glue 190 is used to reinforce the bend of the flexible circuit board 127.
The liquid crystal display device is further provided with a shielding structure 200 for shielding light, interference signals, and the like.
Specifically, fig. 14 is a schematic structural view of a liquid crystal display device in a third embodiment of the present invention. As shown in fig. 14, the liquid crystal display device of the present embodiment adopts a cog (chip On glass) packaging technology, the liquid crystal display device further includes a liquid crystal layer 130 (as shown in fig. 9 and 10, not shown in fig. 14), a color filter substrate 140 and a backlight module 150, the liquid crystal layer 130 is sandwiched between the array substrate 110 and the color filter substrate 140, and the backlight module 150 is disposed On a side of the color filter substrate 140 away from the liquid crystal layer 130.
In this embodiment, the flexible circuit board 127 includes a first flexible circuit board 1271 and a second flexible circuit board 1272, the first flexible circuit board 1271 is coupled to the second surface 11b, and the second flexible circuit board 1272 is coupled to the first surface 11 a. The driving chip 181 is disposed on the first surface 11a of the array substrate 110. The PCB 182 is disposed on a side of the backlight module 150 facing away from the color filter substrate 140, and ends of the first and second flexible circuit boards 1271 and 1272 facing away from the array substrate 110 are connected to the PCB 182.
Fig. 15 is a schematic structural view of a liquid crystal display device in a fourth embodiment of the present invention. As shown in fig. 15, the liquid crystal display device of the present embodiment adopts a cog (chip On glass) packaging technology, the liquid crystal display device further includes a liquid crystal layer 130 (as shown in fig. 9 and 10, not shown in fig. 15), a color filter substrate 140 and a backlight module 150, the liquid crystal layer 130 is sandwiched between the array substrate 110 and the color filter substrate 140, and the backlight module 150 is disposed On a side of the color filter substrate 140 away from the liquid crystal layer 130.
In this embodiment, the flexible circuit board 127 is coupled to the second surface 11b, and the driving chip 160 is disposed on the first surface 11a of the array substrate 110. The PCB 182 is disposed on a side of the backlight module 150 facing away from the color filter substrate 140, and an end of the flexible circuit board 127 facing away from the array substrate 110 is connected to the PCB 182.
The backlight module 150 includes a back frame 151, and a light source 152, a reflective plate (not shown), a light guide plate 153, an optical film set 154, etc. disposed in the back frame 151, and the liquid crystal display device further includes a lower polarizer 171 used in cooperation with the upper polarizer 170, which are well known to those skilled in the art and will not be described herein again.
Fig. 16 is a schematic structural view of a liquid crystal display device in a fifth embodiment of the present invention. As shown in fig. 16, the liquid crystal display device of the present embodiment adopts a COF (Chip On Flex/Chip On Film) packaging technology, the liquid crystal display device further includes a liquid crystal layer 130 (as shown in fig. 9 and 10, not shown in fig. 16), a color filter substrate 140 and a backlight module 150, the liquid crystal layer 130 is sandwiched between the array substrate 110 and the color filter substrate 140, and the backlight module 150 is disposed On a side of the color filter substrate 140 away from the liquid crystal layer 130.
In this embodiment, the flexible circuit board 127 includes a first flexible circuit board 1271 and a second flexible circuit board 1272, the first flexible circuit board 1271 is coupled to the second surface 11b, and the second flexible circuit board 1272 is coupled to the first surface 11 a. The PCB 182 is disposed on a side of the backlight module 150 facing away from the color filter substrate 140, and ends of the first and second flexible circuit boards 1271 and 1272 facing away from the array substrate 110 are connected to the PCB 182. The driving chip 181 is disposed on the second flexible circuit board 1272 on a side of the backlight module 150 facing away from the color filter substrate 140.
Fig. 17 is a schematic structural view of a liquid crystal display device in a sixth embodiment of the present invention. As shown in fig. 17, the liquid crystal display device of the present embodiment adopts a COF (Chip On Flex/Chip On Film) packaging technology, the liquid crystal display device further includes a liquid crystal layer 130 (as shown in fig. 9 and 10, not shown in fig. 17), a color filter substrate 140 and a backlight module 150, the liquid crystal layer 130 is sandwiched between the array substrate 110 and the color filter substrate 140, and the backlight module 150 is disposed On a side of the color filter substrate 140 away from the liquid crystal layer 130.
In this embodiment, the flexible circuit board 127 includes a first flexible circuit board 1271 and a second flexible circuit board 1272, and the first flexible circuit board 1271 and the second flexible circuit board 1272 are coupled to the second surface 11 b. The PCB 182 is disposed on a side of the backlight module 150 facing away from the color filter substrate 140, and ends of the first and second flexible circuit boards 1271 and 1272 facing away from the array substrate 110 are connected to the PCB 182. The driving chip 181 is disposed on the second flexible circuit board 1272 on a side of the backlight module 150 facing away from the color filter substrate 140.
The invention has the beneficial effects that: the narrow-frame display module divides various signal leads on the array substrate 110 into two layers, the first lead layer 122 and the second lead layer 124 are arranged in a staggered mode, all lead positions are not limited on the surface of the array substrate 110, and the flexible circuit board 127 and the lead-out ends are also bound in a staggered mode (FPC Bonding), so that the area of a frame is effectively reduced. The provision of the notch 11d enables the bezel area to be further reduced. Moreover, the positions can be freely assembled when a plurality of flexible circuit boards are arranged, the problem of binding interference is solved, meanwhile, the binding space is increased, and the problem of polarizer scalding is also reduced.
The narrow-bezel display module and the liquid crystal display device provided by the invention are described in detail, and a specific example is applied in the description to explain the principle and the implementation of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A narrow-bezel display module comprises an array substrate (110), wherein the array substrate (110) comprises a display area and a binding area (111), the binding area (111) comprises a first surface (11a) and a second surface (11b) which are opposite to each other, and a side surface (11c) connected between the first surface (11a) and the second surface (11b), and the second surface (11b) of the binding area (111) is arranged adjacent to the outer surface of the display area; the narrow-bezel display module is characterized by further comprising a first insulating layer (121), a first lead layer (122), a second insulating layer (123), a second lead layer (124) and a third insulating layer (125) which are sequentially arranged from the binding region (111) to the outside, wherein one end of each of the first insulating layer (121), the first lead layer (122), the second insulating layer (123), the second lead layer (124) and the third insulating layer (125) is arranged on the first surface (11a) and is bent and extended through the side surface (11c) to enable the other end of each of the first insulating layer, the first lead layer (122), the second insulating layer (123), the second lead layer (124) and the third insulating layer to be arranged on the second surface (11 b).
2. The narrow bezel display module according to claim 1, wherein the first lead layer (122) includes a plurality of first leads (1221), the second lead layer (124) includes a plurality of second leads (1241), the plurality of first leads (1221) and the plurality of second leads (1241) are parallel to each other and are alternately arranged in a direction perpendicular to the first surface (11 a); each of the first leads (1221) is provided with a first binding end (1222) at the second surface (11b), each of the second leads (1241) is provided with a second binding end (1242) at the second surface (11b), and the first binding ends (1222) and the second binding ends (1242) are parallel to each other and alternately arranged in a direction perpendicular to the second surface (11 b).
3. The narrow bezel display module according to claim 1, wherein the first lead layer (122) includes a plurality of first leads (1221), the second lead layer (124) includes a plurality of second leads (1241), and the plurality of first leads (1221) and the plurality of second leads (1241) are stacked up and down in a direction perpendicular to the first surface (11 a); each of the first leads (1221) is provided with a first bonding end (1222) at the second surface (11b), each of the second leads (1241) is provided with a second bonding end (1242) at the second surface (11b), and the first bonding ends (1222) and the second bonding ends (1242) are alternately arranged in front and behind each other in a direction perpendicular to the second surface (11 b).
4. The narrow bezel display module as claimed in claim 1, wherein the side of the bonding region (111) of the array substrate (110) further has an inwardly concave notch (11d), and the side surface (11c) is a surface forming the notch (11 d); the first lead layer (122) and the second lead layer (124) are disposed at positions corresponding to the notches (11 d).
5. The narrow-bezel display module as claimed in claim 1, wherein a touch electrode layer (160) is further disposed on the array substrate (110), and the touch electrode layer (160) is disposed on an outer surface of the display region.
6. The narrow-bezel display module of claim 5, further comprising a shielding layer (126), wherein the shielding layer (126) is disposed between the touch electrode layer (160) and an outer surface of the display region and extends to between the bonding region (111) and the first insulating layer (121).
7. A liquid crystal display device, comprising the narrow-bezel display module as claimed in any one of claims 1 to 6; the liquid crystal display device further comprises a liquid crystal layer (130), a color filter substrate (140) and a backlight module (150), wherein the liquid crystal layer (130) is clamped between the array substrate (110) and the color filter substrate (140), and the backlight module (150) is arranged on one side, away from the liquid crystal layer (130), of the color filter substrate (140); the liquid crystal display device further comprises at least one flexible circuit board (127), and the first lead layer (122) and/or the second lead layer (124) are coupled to one or more of the flexible circuit boards (127).
8. The liquid crystal display device of claim 7, wherein the flexible circuit board (127) is coupled at the second surface (11b) of the bonding region (111).
9. The liquid crystal display device of claim 7, wherein the flexible circuit board (127) comprises a first flexible circuit board (1271) and a second flexible circuit board (1272); the first flexible circuit board (1271) is coupled at the second surface (11b) of the bonding region (111), and the second flexible circuit board (1272) is coupled at the first surface (11a) of the bonding region (111); alternatively, the first flexible circuit board (1271) and the second flexible circuit board (1272) are both coupled at the second surface (11b) of the bonding region (111).
10. The liquid crystal display device according to claim 7, further comprising a driving chip (181) and a PCB board (182); the PCB (182) is arranged on one side of the backlight module (150) facing away from the color filter substrate (140), and one end, away from the array substrate (110), of the flexible circuit board (127) is connected to the PCB (182); the driving chip (181) is arranged on the first surface (11a) of the array substrate (110) or on the flexible circuit board (127) on the side of the backlight module (150) away from the color filter substrate (140).
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| CN202111592086.8A CN114371793B (en) | 2021-12-23 | 2021-12-23 | Narrow frame display module assembly and liquid crystal disply device |
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