CN111708206B - Touch display module, manufacturing method thereof and display device - Google Patents
Touch display module, manufacturing method thereof and display device Download PDFInfo
- Publication number
- CN111708206B CN111708206B CN202010700528.5A CN202010700528A CN111708206B CN 111708206 B CN111708206 B CN 111708206B CN 202010700528 A CN202010700528 A CN 202010700528A CN 111708206 B CN111708206 B CN 111708206B
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- Prior art keywords
- optical adhesive
- display module
- polaroid
- touch
- display
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000853 adhesive Substances 0.000 claims abstract description 207
- 230000001070 adhesive effect Effects 0.000 claims abstract description 207
- 230000003287 optical effect Effects 0.000 claims abstract description 186
- 239000003292 glue Substances 0.000 claims abstract description 37
- 239000004568 cement Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- 239000012788 optical film Substances 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims 2
- 230000000007 visual effect Effects 0.000 abstract description 7
- 239000002390 adhesive tape Substances 0.000 description 15
- 239000000758 substrate Substances 0.000 description 11
- 238000004026 adhesive bonding Methods 0.000 description 8
- 238000003475 lamination Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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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
-
- 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
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
- G02F1/133528—Polarisers
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a touch display module, a manufacturing method thereof and a display device, and relates to the technical field of display. The touch display module comprises a display module and a touch panel, wherein the display module comprises a display panel, a first polaroid and a glue connection part; the first optical adhesive is formed on the first polaroid, so that orthographic projection of the first optical adhesive on the first polaroid is positioned in the region where the polaroid is positioned, the problem that bubbles are generated due to incomplete filling of the first optical adhesive in a gap between the first polaroid and a first bonding part of a bonding part is solved, the yield is improved, in addition, a first shading layer is formed on one side, facing the display panel, of the touch panel, the first shading layer is in contact with the first optical adhesive, the width of a contact region is larger than or equal to a set threshold value, the adhesive edge of the first optical adhesive can be shielded, and the problem of bright lines generated by the adhesive edge of the first optical adhesive under a large visual angle is avoided.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch display module, a manufacturing method thereof and a display device.
Background
Because the narrow frame display module assembly can bring better experience for people, for example, the visual field scope is bigger, and the demand of people for the narrow frame display module assembly is higher and higher.
At present, a tape is used to replace a front frame in a touch display module to realize a narrow frame, the display module in the touch display module is fixed with a backlight source through the tape, and a part of the tape can be aligned and stuck on a glass substrate on the light emitting side of a display panel along the edge of a polaroid in the display module.
In the prior art, when a display module and a backlight source are fixed by using an adhesive tape, the production line operation cannot ensure that the adhesive tape is in close contact with the polarizer, a gap of about 0.3mm exists in a part of the area, meanwhile, the gap is larger because materials of the adhesive tape and the polarizer shrink in the high-temperature aging process, at the moment, when the touch panel and the display module are fixed by coating optical adhesive on the polarizer and the adhesive tape, the gap between the polarizer and the adhesive tape cannot be completely filled by the optical adhesive because the optical adhesive has certain viscosity, so that bubbles are easy to generate, and after a cover plate is fixed on the touch panel by the optical adhesive, when the frame of the display device is relatively narrow, the bubbles are very close to a visible area of the cover plate, and the bubbles can be seen under a large visual angle; meanwhile, a small amount of bubbles of the touch display module can move to a visible area after high-temperature aging, so that the picture display effect is affected, if the bubbles are bad in the processing process, the lamination yield is very low, reworking and re-lamination are required, and the productivity and the labor and material cost are affected.
Disclosure of Invention
The invention provides a touch display module, a manufacturing method thereof and a display device, which are used for solving the problems that when the conventional optical adhesive is used for fixedly connecting a touch panel with the display module, the optical adhesive enters a gap between a polaroid and an adhesive tape in the display module, so that bubbles are generated, an image display effect is achieved, and cost is wasted.
In order to solve the above problems, the present invention discloses a touch display module, comprising: the display module comprises a display panel, a first polaroid and a glue connection part;
the first bonding part of the glue connection part and the first polaroid are both positioned on the light emitting side of the display panel, and an overlapping area does not exist between the orthographic projection of the first bonding part of the glue connection part on the display panel and the orthographic projection of the first polaroid on the display panel;
the touch panel is fixedly connected with the first polaroid in the display module through first optical cement, and orthographic projection of the first optical cement on the first polaroid is positioned in a region where the first polaroid is positioned;
the touch panel is further provided with a first shading layer on one side facing the display panel, the first shading layer is in contact with the first optical adhesive part, the width of a contact area of the first shading layer and the first optical adhesive in a target direction is larger than or equal to a set threshold value, and the target direction is a direction from a display area of the touch display module to a non-display area of the touch display module.
Optionally, the thickness of the first optical adhesive in the direction perpendicular to the display panel is 0.5 mm-0.8 mm.
Optionally, the set threshold is 0.45mm.
Optionally, the first light shielding layer is located in a non-display area of the touch display module.
Optionally, the material of the first light shielding layer is black ink.
Optionally, the touch display module further includes a cover plate, and the cover plate is fixedly connected with the touch panel through a second optical adhesive.
Optionally, a second light shielding layer is disposed on a side of the cover plate facing the display panel, the second light shielding layer is in contact with the second optical adhesive portion, and the second light shielding layer is located in the non-display area.
Optionally, the display module further comprises a backlight source, wherein the backlight source comprises an optical film material, a back plate and a rubber frame;
the optical film material is positioned between the back plate and the display panel, and is positioned on the opposite side of the light emitting side of the display panel;
the glue frame comprises a first rib position structure and a second rib position structure, the first rib position structure is parallel to the plane where the display panel is located, and the second rib position structure is perpendicular to the plane where the display panel is located;
The adhesive component further comprises a second bonding part and a third bonding part; the second bonding part of the glue connection part is attached to one side, away from the display panel, of the second rib position structure of the glue frame, and the third bonding part of the glue connection part is attached to one side, away from the display panel, of the back plate.
Optionally, the touch display module further comprises foam, and the display module further comprises a second polarizer;
the second polaroid is positioned between the display panel and the optical film material;
the foam is positioned between the first rib position structure of the rubber frame and the second polaroid and is respectively contacted with the first rib position structure of the rubber frame and the second polaroid.
In order to solve the problems, the invention also discloses a display device which comprises the touch display module.
In order to solve the above problems, the invention also discloses a manufacturing method of the touch display module, comprising the following steps:
providing a display module; the display module comprises a display panel, a first polaroid and a glue connection part;
forming a first shading layer on the touch panel;
fixedly connecting the touch panel with the first polaroid in the display module through first optical cement;
The first bonding part of the glue connection part and the first polaroid are both positioned on the light emitting side of the display panel, and an overlapping area does not exist between the orthographic projection of the first bonding part of the glue connection part on the display panel and the orthographic projection of the first polaroid on the display panel; the orthographic projection of the first optical cement on the first polaroid is positioned in the area where the first polaroid is positioned; the first shading layer is in contact with the first optical adhesive part, the width of a contact area of the first shading layer and the first optical adhesive in a target direction is larger than or equal to a set threshold value, and the target direction is along the direction from the display area of the touch display module to the non-display area of the touch display module.
Optionally, after the step of fixedly connecting the touch panel and the first polarizer in the display module through the first optical adhesive, the method further includes:
and fixedly connecting the cover plate with the touch panel through a second optical adhesive.
Optionally, before the step of fixedly connecting the cover plate and the touch panel through the second optical adhesive, the method further includes:
forming a second light shielding layer on the cover plate;
The second light shielding layer is in contact with the second optical adhesive part, and the second light shielding layer is located in the non-display area.
Compared with the prior art, the invention has the following advantages:
in the embodiment of the invention, the touch display module comprises a display module and a touch panel, wherein the display module comprises a display panel, a first polaroid and a glue connection part; the first bonding part and the first polaroid of the glue connection part are both positioned on the light emitting side of the display panel, and the front projection of the first bonding part of the glue connection part on the display panel and the front projection of the first polaroid on the display panel do not have a superposition area; the touch panel is fixedly connected with a first polaroid in the display module through a first optical adhesive, and orthographic projection of the first optical adhesive on the first polaroid is positioned in a region where the first polaroid is positioned; the touch panel is further provided with a first shading layer on one side facing the display panel, the first shading layer is in contact with the first optical adhesive part, the width of a contact area of the first shading layer and the first optical adhesive in a target direction is larger than or equal to a set threshold value, and the target direction is a direction from a display area of the touch display module to a non-display area of the touch display module. The first optical adhesive is formed on the first polaroid, so that orthographic projection of the first optical adhesive on the first polaroid is positioned in the area where the first polaroid is positioned, namely, the first optical adhesive cannot be formed in a gap between the first bonding part of the bonding part and the first polaroid, therefore, the problem that bubbles are generated due to incomplete filling of the first optical adhesive in the gap is avoided, and bubbles are not observed when the touch display module is displayed, the yield is improved, and the cost is saved; in addition, a first shading layer is formed on one side, facing the display panel, of the touch panel, the first shading layer is in contact with the first optical adhesive part, and the width of the contact area is larger than or equal to a set threshold value, so that the adhesive edge of the first optical adhesive is shielded through the first shading layer, and the problem that bright lines are generated by the adhesive edge of the first optical adhesive under a large visual angle when the touch display module is displayed is avoided.
Drawings
Fig. 1 shows a cross-sectional view of a touch display module according to the prior art;
fig. 2 is a cross-sectional view of a touch display module according to an embodiment of the invention;
FIG. 3 is a cross-sectional view of another touch display module according to an embodiment of the invention;
fig. 4 is a plan view of the touch display module shown in fig. 3;
fig. 5 is a flowchart illustrating a method for manufacturing a touch display module according to an embodiment of the invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
In order to meet the requirement of a narrow frame, the prior art uses the adhesive tape 11 to replace the front frame in the display module, fix the display panel and the backlight source to reduce the width of the frame of the display module, as shown in fig. 1, the first portion 111 of the adhesive tape 11 is aligned and adhered to the glass substrate on the light emitting side of the display panel 13 along the edge of the polarizer 12, the second portion 112 of the adhesive tape 11 is adhered to the side of the back plate 1402 in the backlight source facing away from the light emitting surface of the display panel 13 and the side of the adhesive frame 1401 in the backlight source facing away from the display panel 13, so as to fix the display panel 13 and the backlight source together, then attach the touch panel 15 to the display module, attach the cover plate 17 to the touch panel 15, and print ink 171 on the lower surface of the edge of the cover plate 17 to cover the area outside the visible area.
In this way, when the display panel 13 is fixed to the backlight source by using the adhesive tape 11, the production line operation cannot ensure that the first portion 111 of the adhesive tape 11 is in close contact with the polarizer 12 located on the display panel 13, a gap of about 0.3mm exists in a partial area, meanwhile, the gap is larger because the materials of the adhesive tape 11 and the polarizer 12 shrink in the high-temperature aging process, at this time, when the first optical adhesive 16 is coated on the first portion 111 of the adhesive tape 11 and the polarizer 12 to fix the touch panel 15 to the display module, since the first optical adhesive 16 has a certain viscosity, the first optical adhesive 16 cannot completely fill the gap between the polarizer 12 and the first portion 111 of the adhesive tape 11, so that bubbles 19 are easy to generate, and when the frame of the display panel 13 is relatively narrow after the cover plate 17 is fixed to the touch panel 15 by the second optical adhesive 18, the bubbles 19 are very close to the visible area of the cover plate 17, and the bubbles 19 can be seen at the edge position of the ink 171 on the cover plate 17 under a large viewing angle; meanwhile, a small amount of bubbles 19 can move to a visible area after high-temperature aging, so that the picture display effect is affected, the lamination yield is very low if the bubbles 19 are bad in the processing process, reworking and re-lamination are required, and the productivity and the labor and material cost are affected.
Example 1
Referring to fig. 2, a cross-sectional view of a touch display module according to an embodiment of the invention is shown.
The invention provides a touch display module, comprising: the display module comprises a display panel 201, a first polaroid 202 and a glue connection part 203;
wherein, the first adhesive portion 2031 of the adhesive connection member 203 and the first polarizer 202 are both located on the light emitting side of the display panel 201, and there is no overlapping area between the front projection of the first adhesive portion 2031 of the adhesive connection member 203 on the display panel 201 and the front projection of the first polarizer 202 on the display panel 201;
the touch panel 204 is fixedly connected with a first polaroid 202 in the display module through a first optical adhesive 205, and the orthographic projection of the first optical adhesive 205 on the first polaroid 202 is positioned in the area where the first polaroid 202 is positioned;
the touch panel 204 is further provided with a first shading layer 2041 at a side facing the display panel 201, the first shading layer 2041 is partially contacted with the first optical adhesive 205, and a width of a contact area of the first shading layer 2041 and the first optical adhesive 205 in a target direction is greater than or equal to a set threshold, wherein the target direction is a direction from a display area a of the touch display module to a non-display area B of the touch display module.
Specifically, the first adhesive portion 2031 of the adhesive bonding member 203 may be disposed around four sides of the first polarizer 202, or may be disposed on any one side, two sides, or three sides of the four sides of the first polarizer 202, which may be specifically selected according to actual needs, and the present invention is not limited thereto. When the first adhesive parts 2031 of the adhesive bonding members 203 are provided on the four sides of the first polarizer 202, the first adhesive parts 2031 of the four sides may be integrally formed, or each side may be separately formed, and the adhesive bonding members 203 may be adhesive tapes.
When the touch panel 204 and the first polarizer 202 in the display module are fixedly connected through the first optical adhesive 205, the first optical adhesive 205 can be coated on the first polarizer 202, and then the touch panel 204 and the first polarizer 202 coated with the first optical adhesive 205 are pressed together, so that the fixed connection of the touch panel 204 and the first polarizer 202 in the display module is realized; alternatively, the first optical adhesive 205 may be coated on the touch panel 204, and then the side of the touch panel 204 coated with the first optical adhesive 205 is pressed with the first polarizer 202 in the display module, so as to realize the fixed connection between the touch panel 204 and the first polarizer 202 in the display module.
It should be noted that, when the first optical adhesive 205 is coated on the touch panel 204, the coating position of the first optical adhesive 205 on the touch panel 204 needs to be controlled to ensure that after the touch panel 204 coated with the first optical adhesive 205 is pressed against the first polarizer 202 in the display module, the orthographic projection of the first optical adhesive 205 on the first polarizer 202 is located in the area where the first polarizer 202 is located.
In the embodiment of the present invention, since the orthographic projection of the first optical cement 205 on the first polarizer 202 is located in the area where the first polarizer 202 is located, that is, the first optical cement 205 is not located in the area outside the first polarizer 202, when the first bonding portion 2031 of the adhesive bonding member 203 and the first polarizer 202 are both located on the light-emitting side of the display panel 201, a gap exists between the first bonding portion 2031 of the adhesive bonding member 203 and the first polarizer 202, and at this time, the first optical cement 205 is not located in the area outside the first polarizer 202, that is, the first optical cement 205 is not located in the gap between the first bonding portion 2031 of the adhesive bonding member 203 and the first polarizer 202, so that the problem that the display effect is affected due to the air bubbles generated after the first optical cement 205 enters the gap is avoided.
Further, in order to avoid the problem of air bubbles when the first optical adhesive 205 is used to fixedly connect the touch panel 204 with the first polarizer 202 in the display module, the front projection of the first optical adhesive 205 on the first polarizer 202 needs to be located in the area where the first polarizer 202 is located, so that the edge of the first optical adhesive 205 is closer to the display area a of the touch display module, therefore, when the touch display module displays, the problem of bright lines caused by the edge of the first optical adhesive 205 is easy to occur under a large viewing angle, in order to avoid the problem of bright lines caused by the edge of the first optical adhesive 205 under a large viewing angle, the first light shielding layer 2041 is arranged on the side, facing the touch panel 204, of the touch panel 201, and the first light shielding layer 2041 is in contact with the first optical adhesive 205, and the width of the contact area along the direction from the display area a of the touch display module to the non-display area B of the touch display module is greater than or equal to the set threshold, thereby ensuring that no air bubbles appear when the touch display module displays.
The display panel 201 includes an array substrate, a color film substrate, and a liquid crystal layer disposed between the array substrate and the color film substrate.
In the embodiment of the invention, the threshold value is set to be 0.45mm.
As shown in fig. 2, a is an incident angle of incident light irradiated onto the touch display module, b is a refraction angle of refracted light ray after incident light irradiates onto the touch panel 204 and is refracted, and the incident angle a and the refraction angle b satisfy the following refractive index formula, n 1 *sin a＝n 2 *sin b，n 1 Refractive index of air, n 2 Is the refractive index of the touch panel 204. Wherein the refractive index n of air 1 1, the refractive index n of the touch panel 204 2 About 1.5, and the refractive index of the first optical adhesive 205 is equal to the refractive index of the touch panel 204.
Typically, the limit value of the large viewing angle is 90 °, and therefore, the incident angle a=90°, n 1 ＝1，n 2 =1.5 brings into refractive index formula n 1 *sin a＝n 2 * sin b, the angle of refraction b is calculated to be 42 °. Since the refractive index of the first optical adhesive 205 is equal to the refractive index of the touch panel 204, the refractive angle of the refracted light beam after being refracted on the touch panel 204 is still b when the refracted light beam enters the first optical adhesive 205.
If the edge of the first optical adhesive 205 is just not visible at a large viewing angle, the contact area between the first shading layer 2041 and the first polarizer 202 has a width l=n=tan b.
In an actual product, the thickness N of the first optical adhesive 205 in the direction perpendicular to the display panel 201 is 0.5mm to 0.8mm, so if the edge of the first optical adhesive 205 is not visible in a large viewing angle, the width L of the contact area between the first light shielding layer 2041 and the first polarizer 202 is calculated according to l=n×tan b to be greater than or equal to a set threshold, and the set threshold is 0.45mm.
For example, when the thickness N of the first optical adhesive 205 is 0.5mm, b=42° and n=0.5 mm are substituted into l=n×tanb, and the width L of the contact area between the first light-shielding layer 2041 and the first optical adhesive 205 is calculated to be about 0.45mm, that is, the threshold value is set to be 0.45mm, and when the width of the contact area between the first light-shielding layer 2041 and the first polarizer 202 is greater than or equal to 0.45mm, the first light-shielding layer 2041 can shield the edge of the first optical adhesive 205 under a large viewing angle, that is, the width of the contact area between the first light-shielding layer and the first optical adhesive is greater than or equal to the threshold value set to be 0.45mm.
Preferably, in consideration of the lamination tolerance and the manufacturing error, when the thickness N of the first optical adhesive 205 is 0.5mm, the width L of the contact area between the first shading layer 2041 and the first polarizer 202 is 0.75mm, so as to realize shielding of the adhesive edge of the first optical adhesive 205.
When the thickness N of the first optical adhesive 205 is 0.8mm, b=42° and n=0.8 mm are substituted into l=n×tanb, to obtain l=0.72 mm, that is, when n=0.8 mm, the width of the contact area between the first light shielding layer 2041 and the first optical adhesive 205 along the display area a of the touch display module to the non-display area B of the touch display module is 0.72mm, and the width of the contact area is adjusted to 1.02mm in consideration of the lamination tolerance and the manufacturing error, so as to realize shielding of the adhesive edge of the first optical adhesive 205.
In the embodiment of the present invention, the width of the contact area between the first optical adhesive 205 and the first shading layer 2041 can be adjusted according to the thickness change of the first optical adhesive 205, so that the width of the contact area can be accurately determined, and not only can the edge of the first optical adhesive 205 be shielded under a large viewing angle, but also the width of the frame in the display module can be as narrow as possible.
In the embodiment of the invention, the edge area of the first polarizer 202 is located in the non-display area B, the other areas of the first polarizer 202 are located in the display area a, and correspondingly, the first optical cement 205 located in the edge area of the first polarizer 202 is also located in the non-display area B, the first optical cement 205 located in the other areas of the first polarizer 202 is located in the display area a, and the contact area between the first optical cement 205 and the first shading layer 2041 is the contact area between the first optical cement 205 located in the edge area of the first polarizer 202 and the first shading layer 2041 in the first optical cement 205.
In the embodiment of the invention, the first shading layer 2041 is located in the non-display area B of the touch display module, and the first shading layer 2041 is disposed in the non-display area B of the touch display module, so that the problem that the display area of the display area a is reduced due to the fact that the first shading layer 2041 extends to the display area a is avoided, and the frame width of the touch display module is reduced while shielding the adhesive edge of the first optical adhesive 205 is ensured.
Further, the material of the first shading layer 2041 is black ink, and the black ink can be formed on the touch panel 204 by coating or printing, and the first shading layer 2041 is formed on a side of the touch panel 204 facing the display panel 201, for shading the edge of the first optical adhesive 205 in the non-display area B.
In the embodiment of the present invention, fig. 3 shows a cross-sectional view of another touch display module according to the embodiment of the present invention, where the touch display module further includes a cover plate 206, the cover plate 206 is fixedly connected to the touch panel 204 through a second optical adhesive 207, fig. 4 shows a planar structure diagram corresponding to the touch display module shown in fig. 3, and fig. 3 is a cross-sectional view of the touch display module along a section C-C' in fig. 4.
Specifically, when the cover plate 206 and the touch panel 204 are fixedly connected through the second optical adhesive 207, the second optical adhesive 207 may be coated on a side of the touch panel 204 away from the display panel 201, and then the side of the touch panel 204 coated with the second optical adhesive 207 is pressed with the cover plate 206, so as to realize the fixed connection between the cover plate 206 and the touch panel 204; alternatively, the second optical adhesive 207 may be coated on the cover 206, and then the side of the cover 206 coated with the second optical adhesive 207 is pressed against the touch panel 204, so as to achieve the fixed connection between the cover 206 and the touch panel 204.
The cover plate 206 is provided with a second light shielding layer 2061 at one side facing the display panel 201, the second light shielding layer 2061 is in partial contact with the second optical adhesive 207, the second light shielding layer 2061 is positioned in a non-display area B of the touch display module, the second light shielding layer 2061 can shield each layer structure positioned under the second optical adhesive 207 in the non-display area B, and the problem of bright lines caused by the edges of each layer structure under the second light shielding layer 2061 is prevented when the touch display module displays; in addition, since the second light shielding layer 2061 does not need to cover the glue edge of the first optical glue 205 on the side close to the display area a, the distance between the side close to the display area a of the second light shielding layer 2061 and the display area a may be greater than the distance between the side close to the display area a of the first light shielding layer 2041 and the display area a.
In the embodiment of the present invention, since the refractive indexes of the cover 206 and the second optical adhesive 207 are also about 1.5, the refraction angle of the incident light beam irradiated onto the touch display module entering the cover 206 and the second optical adhesive 207 is the same as the refraction angle of the incident light beam entering the first optical adhesive 205 and the touch panel 204, and therefore, the refraction angle b will not be affected after the cover 206 and the second optical adhesive 207 are added, so that the width of the contact area between the first light shielding layer 2041 and the first polarizer 202 will not be affected, i.e. the size of the set threshold will not be affected, and the set threshold will still be 0.45mm.
Further, the material of the second light shielding layer 2061 is black ink, which may be formed on the cover plate 206 by coating or printing, and the second light shielding layer 2061 is formed on the side of the cover plate 206 facing the display panel 201 for shielding the edges of the structures covered by the second light shielding layer 2061
In the embodiment of the invention, the second light shielding layer 2061 is located in the non-display area B of the touch display module, and the second light shielding layer 2061 is disposed in the non-display area B of the touch display module, so that the problem that the second light shielding layer 2061 extends to the display area a and the display area of the display area a is reduced is avoided.
In the embodiment of the invention, the display module further includes a backlight 208, and the backlight 208 includes an optical film 2081, a back plate 2082 and a frame 2083; the optical film 2081 is located between the back plate 2082 and the display panel 201, and the optical film 2081 is located at the opposite side of the light emitting side of the display panel 201; the plastic frame 2083 includes a first rib position structure 20831 and a second rib position structure 20832, the first rib position structure 20831 is parallel to the plane of the display panel 201, and the second rib position structure 20832 is perpendicular to the plane of the display panel 201; the adhesive member 203 further includes a second adhesive portion 2032 and a third adhesive portion 2033; the second adhesive portion 2032 of the adhesive bonding member 203 is attached to a side of the second rib position structure 20832 of the adhesive frame 2083 facing away from the display panel 201, and the third adhesive portion 2033 of the adhesive bonding member 203 is attached to a side of the back plate 2082 facing away from the display panel 201.
Specifically, the backboard 2082 includes a first support structure 20821 and a second support structure 20822, where the first support structure 20821 is parallel to the plane where the display panel 201 is located, the second support structure 20822 is perpendicular to the plane where the display panel 201 is located, the first support structure 20821 and the second support structure 20822 are integrally formed, the first support structure 20821 is used for supporting the optical film material 2081 located thereon, and the surface parallel to the display panel 201 in the second support structure 20822 contacts with the first rib position structure 20831 in the rubber frame 2083 for supporting the first rib position structure 20831.
The optical film 2081 is located between the first support structure 20821 in the back plate 2082 and the display panel 201, and the optical film 2081 is located at the opposite side of the light emitting side of the display panel 201, where the optical film 2081 includes a light guide plate, a reflective sheet, a prism sheet, a diffusion sheet, and the like.
As can be seen from fig. 3, the third adhesive portion 2033 of the adhesive member 203 is attached to a side of the first support structure 20821 of the back plate 2082, which faces away from the display panel 201, and the first adhesive portion 2031 of the adhesive member 203 is connected with the second adhesive portion 2032, the second adhesive portion 2032 is connected with the third adhesive portion 2033, and the adhesive member 203 fixedly connects the first polarizer 202 on the display panel 201, the adhesive frame 2083 of the backlight 208, and the back plate 2082 of the backlight 208 together through the first adhesive portion 2031, the second adhesive portion 2032, and the third adhesive portion 2033, so that a display module is formed, and the front frame in the conventional display module is replaced with the adhesive member 203, so that the display module can realize narrow frame display.
In the embodiment of the invention, the touch display module further includes foam 210, the display module further includes a second polarizer 209, the second polarizer 209 is located between the display panel 201 and the optical film 2081, and the foam 210 is located between the first rib structure 20831 and the second polarizer 209 in the plastic frame 2083 and is respectively in contact with the first rib structure 20831 and the second polarizer 209 in the plastic frame 2083.
Specifically, the foam 210 is disposed between the first rib position structure 20831 and the second polarizer 209 in the plastic frame 2083, and the foam 210 can prevent the second polarizer 209 from being scratched by the first rib position structure 20831, and can buffer the display panel 201 when the touch display module is carried.
In the embodiment of the invention, the first optical adhesive is formed on the first polaroid, so that the orthographic projection of the first optical adhesive on the first polaroid is positioned in the area where the first polaroid is positioned, namely, the first optical adhesive is not formed in the gap between the first bonding part of the bonding part and the first polaroid, therefore, the problem that bubbles are generated due to incomplete filling of the first optical adhesive in the gap is avoided, and then the bubbles are not observed when the touch display module is displayed, the yield is improved, and the cost is saved; in addition, a first shading layer is formed on one side, facing the display panel, of the touch panel, the first shading layer is in contact with the first optical adhesive part, and the width of the contact area is larger than or equal to a set threshold value, so that the adhesive edge of the first optical adhesive is shielded through the first shading layer, and the problem that bright lines are generated by the adhesive edge of the first optical adhesive under a large visual angle when the touch display module is displayed is avoided.
Example two
The embodiment of the invention comprises a display device which comprises the touch display module.
For a specific description of the touch display module, reference may be made to the description of the first embodiment, which is not repeated herein.
The display device also comprises a touch control driving chip, a display driving chip and other devices.
In the embodiment of the present invention, the display device is a touch display device, and the display device may be: any narrow-frame product or component with display and touch functions such as a mobile phone, a tablet computer, a television, a notebook computer and a vehicle-mounted display product.
In an embodiment of the present invention, in the present invention,
the first optical adhesive is formed on the first polaroid, so that orthographic projection of the first optical adhesive on the first polaroid is positioned in the area where the first polaroid is positioned, namely, the first optical adhesive cannot be formed in a gap between the first bonding part of the bonding part and the first polaroid, therefore, the problem that bubbles are generated due to incomplete filling of the first optical adhesive in the gap is avoided, and bubbles are not observed when the touch display module is displayed, the yield is improved, and the cost is saved; in addition, a first shading layer is formed on one side, facing the display panel, of the touch panel, the first shading layer is in contact with the first optical adhesive part, and the width of the contact area is larger than or equal to a set threshold value, so that the adhesive edge of the first optical adhesive is shielded through the first shading layer, and the problem that bright lines are generated by the adhesive edge of the first optical adhesive under a large visual angle when the touch display module is displayed is avoided.
Example III
Referring to fig. 5, a flowchart of a method for manufacturing a touch display module according to an embodiment of the invention may specifically include the following steps:
step 510, providing a display module; the display module comprises a display panel, a first polaroid and a glue connection part.
In an embodiment of the present invention, a display module is provided, the display module includes a display panel 201, a first polarizer 202 and a glue connection member 203, the display panel 201 includes a color film substrate, an array substrate and a liquid crystal layer located between the color film substrate and the array substrate, the first polarizer 202 is located at a side of the color film substrate in the display panel 201 away from the liquid crystal layer, wherein a first bonding portion 2031 and the first polarizer 202 of the glue connection member 203 are both located at a light emitting side of the display panel 201, and a superposition area does not exist between an orthographic projection of the first bonding portion 2031 of the glue connection member 203 on the display panel 201 and an orthographic projection of the first polarizer 202 on the display panel 201.
In step 520, a first light shielding layer is formed on the touch panel.
In the embodiment of the invention, a touch panel 204 is provided, a first shading layer 2041 is formed on the touch panel 204, the first shading layer 2041 may be coated or printed on the touch panel 204, the material of the first shading layer 2041 is black ink, and by forming the first shading layer 2041 on the touch panel 204, the glue edge of the first optical glue 205 that is used for fixedly connecting the touch panel 204 and the first polarizer 202 in the display module can be shielded, so that the bright line problem caused by the glue edge of the first optical glue 205 is prevented when the touch display module displays.
Step 530, fixedly connecting the touch panel with the first polarizer in the display module through a first optical adhesive; the first bonding part of the glue connection part and the first polaroid are both positioned on the light emitting side of the display panel, and an overlapping area does not exist between the orthographic projection of the first bonding part of the glue connection part on the display panel and the orthographic projection of the first polaroid on the display panel; the orthographic projection of the first optical cement on the first polaroid is positioned in the area where the first polaroid is positioned; the first shading layer is in contact with the first optical adhesive part, the width of a contact area of the first shading layer and the first optical adhesive in a target direction is larger than or equal to a set threshold value, and the target direction is along the direction from the display area of the touch display module to the non-display area of the touch display module.
In the embodiment of the invention, after the first shading layer 2041 is formed on the touch panel 204, the touch panel 204 with the first shading layer 2041 formed thereon is fixedly connected with the first polarizer 202 in the display module, the first optical adhesive 205 can be coated on the first polarizer 202 in the display module, and then the touch panel 204 is pressed with the first polarizer 202 coated with the first optical adhesive 205, so as to realize the fixed connection between the touch panel 204 and the first polarizer 202 in the display module; alternatively, the first optical adhesive 25 may be coated on the touch panel 204, and then the side of the touch panel 204 coated with the first optical adhesive 205 is pressed with the first polarizer 202 in the display module, so as to realize the fixed connection between the touch panel 204 and the first polarizer 202 in the display module.
The first shading layer 2041 is partially contacted with the first optical adhesive 205, and the width of the contact area of the first shading layer 2041 and the first optical adhesive 205 in the target direction is greater than or equal to a set threshold, wherein the target direction is along the direction from the display area a of the touch display module to the non-display area B of the touch display module, the thickness of the first optical adhesive 205 is 0.5 mm-0.8 mm, and the set threshold is 0.45mm.
In an embodiment of the present invention, after step 530, the method further includes: and fixedly connecting the cover plate with the touch panel through a second optical adhesive.
In the embodiment of the invention, after the touch panel 204 is fixedly connected with the first polarizer 202 in the display module by the first optical adhesive 205, the cover plate 206 is fixedly connected with the touch panel 204 by the second optical adhesive 207.
Before the step of fixedly connecting the cover plate 206 and the touch panel 204 through the second optical adhesive 207, the method further includes: forming a second light shielding layer on the cover plate; the second light shielding layer is in contact with the second optical adhesive part, and the second light shielding layer is located in the non-display area.
In the embodiment of the invention, before the cover 206 is fixedly connected to the touch panel 204 through the second optical adhesive 207, the second light shielding layer 2061 is formed on the cover 206, and then the cover 206 with the second light shielding layer 2061 is fixedly connected to the touch panel 204 through the second optical adhesive 207.
Specifically, when the cover plate 206 and the touch panel 204 are fixedly connected through the second optical adhesive 207, the second optical adhesive 207 may be coated on a side of the touch panel 204 away from the display panel 201, and then the side of the touch panel 204 coated with the second optical adhesive 207 is pressed with the cover plate 206, so as to realize the fixed connection between the cover plate 206 and the touch panel 204; alternatively, the second optical adhesive 207 may be coated on the cover 206, and then the side of the cover 206 coated with the second optical adhesive 207 is pressed against the touch panel 204, so as to achieve the fixed connection between the cover 206 and the touch panel 204.
The second light shielding layer 2061 is partially contacted with the second optical adhesive 207, and the second light shielding layer 2061 is located in the non-display area B of the touch display module, and the second light shielding layer 2061 located on the cover plate 206 is partially contacted with the second optical adhesive 207, and the second light shielding layer 2061 can shield the adhesive edge of the second optical adhesive 207 in the contact part, so as to prevent the problem of bright lines from occurring on the adhesive edge of the second optical adhesive 207 under a large viewing angle.
In the embodiment of the present invention, the second light shielding layer 2061 is formed on the cover plate 206, which can also play a role in shielding other structures in the area covered by the second light shielding layer 2061, so as to avoid the problem of bright lines when the touch display module is displayed due to the edges of other structures located under the second light shielding layer 2061.
In the embodiment of the invention, the first optical adhesive is formed on the first polaroid, so that the orthographic projection of the first optical adhesive on the first polaroid is positioned in the area where the first polaroid is positioned, namely, the first optical adhesive is not formed in the gap between the first bonding part of the bonding part and the first polaroid, therefore, the problem that bubbles are generated due to incomplete filling of the first optical adhesive in the gap is avoided, and then the bubbles are not observed when the touch display module is displayed, the yield is improved, and the cost is saved; in addition, a first shading layer is formed on one side, facing the display panel, of the touch panel, the first shading layer is in contact with the first optical adhesive part, and the width of the contact area is larger than or equal to a set threshold value, so that the adhesive edge of the first optical adhesive is shielded through the first shading layer, and the problem that bright lines are generated by the adhesive edge of the first optical adhesive under a large visual angle when the touch display module is displayed is avoided.
For the foregoing method embodiments, for simplicity of explanation, the methodologies are shown as a series of acts, but one of ordinary skill in the art will appreciate that the present invention is not limited by the order of acts, as some steps may, in accordance with the present invention, occur in other orders or concurrently. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present invention.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The touch display module, the manufacturing method thereof and the display device provided by the invention are described in detail, and specific examples are applied to explain the principle and the implementation mode of the invention, and the description of the above examples is only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (12)
1. The utility model provides a touch-control display module assembly which characterized in that includes: the display module comprises a display panel, a first polaroid and a glue connection part;
the first bonding part of the glue connection part and the first polaroid are both positioned on the light emitting side of the display panel, and an overlapping area does not exist between the orthographic projection of the first bonding part of the glue connection part on the display panel and the orthographic projection of the first polaroid on the display panel;
the touch panel is fixedly connected with the first polaroid in the display module through first optical cement, the orthographic projection of the first optical cement on the first polaroid is positioned in the area where the first polaroid is positioned, and the touch panel is fixedly connected with the first polaroid in the display module through first optical cement and comprises the following components: coating a first optical adhesive on the first polaroid, and then pressing the touch panel and the first polaroid coated with the first optical adhesive;
the touch panel is further provided with a first shading layer at one side facing the display panel, the first shading layer is in contact with the first optical adhesive part, the width of a contact area of the first shading layer and the first optical adhesive in a target direction is larger than or equal to a set threshold value, and the target direction is a direction from a display area of the touch display module to a non-display area of the touch display module;
The first light shielding layer is positioned in a non-display area of the touch display module, the first optical adhesive positioned in the edge area of the first polaroid in the first optical adhesive is also positioned in the non-display area, and the contact area between the first optical adhesive and the first light shielding layer is the contact area between the first optical adhesive positioned in the edge area of the first polaroid in the first optical adhesive and the first light shielding layer;
the front projection of the first shading layer, the first optical adhesive and the first polaroid in the non-display area of the touch display module has an overlapping area.
2. The touch display module according to claim 1, wherein the thickness of the first optical adhesive in the direction perpendicular to the display panel is 0.5mm to 0.8mm.
3. The touch display module of claim 1, wherein the set threshold is 0.45mm.
4. The touch display module of claim 1, wherein the material of the first light shielding layer is black ink.
5. The touch display module of claim 1, further comprising a cover plate fixedly connected to the touch panel by a second optical adhesive.
6. The touch display module according to claim 5, wherein a second light shielding layer is disposed on a side of the cover plate facing the display panel, the second light shielding layer is in contact with the second optical adhesive portion, and the second light shielding layer is located in the non-display area.
7. The touch display module of claim 1, further comprising a backlight source, the backlight source comprising an optical film, a back plate and a rubber frame;
the optical film material is positioned between the back plate and the display panel, and is positioned on the opposite side of the light emitting side of the display panel;
the glue frame comprises a first rib position structure and a second rib position structure, the first rib position structure is parallel to the plane where the display panel is located, and the second rib position structure is perpendicular to the plane where the display panel is located;
the adhesive component further comprises a second bonding part and a third bonding part; the second bonding part of the glue connection part is attached to one side, away from the display panel, of the second rib position structure of the glue frame, and the third bonding part of the glue connection part is attached to one side, away from the display panel, of the back plate.
8. The touch display module of claim 7, wherein the touch display module further comprises foam, the display module further comprising a second polarizer;
the second polaroid is positioned between the display panel and the optical film material;
the foam is positioned between the first rib position structure of the rubber frame and the second polaroid and is respectively contacted with the first rib position structure of the rubber frame and the second polaroid.
9. A display device comprising the touch display module of any one of claims 1 to 8.
10. The manufacturing method of the touch display module is characterized by comprising the following steps of:
providing a display module; the display module comprises a display panel, a first polaroid and a glue connection part;
forming a first shading layer on the touch panel;
fixedly connecting the touch panel with the first polaroid in the display module through first optical cement comprises the following steps: coating a first optical adhesive on the first polaroid, and then pressing the touch panel and the first polaroid coated with the first optical adhesive;
the first bonding part of the glue connection part and the first polaroid are both positioned on the light emitting side of the display panel, and an overlapping area does not exist between the orthographic projection of the first bonding part of the glue connection part on the display panel and the orthographic projection of the first polaroid on the display panel; the orthographic projection of the first optical cement on the first polaroid is positioned in the area where the first polaroid is positioned; the first shading layer is in contact with the first optical adhesive part, the width of a contact area of the first shading layer and the first optical adhesive in a target direction is larger than or equal to a set threshold value, and the target direction is a direction from a display area of the touch display module to a non-display area of the touch display module; the first light shielding layer is positioned in a non-display area of the touch display module, the first optical adhesive positioned in the edge area of the first polaroid in the first optical adhesive is also positioned in the non-display area, and the contact area between the first optical adhesive and the first light shielding layer is the contact area between the first optical adhesive positioned in the edge area of the first polaroid in the first optical adhesive and the first light shielding layer;
The front projection of the first shading layer, the first optical adhesive and the first polaroid in the non-display area of the touch display module has an overlapping area.
11. The method of claim 10, further comprising, after the step of fixedly connecting the touch panel and the first polarizer in the display module by a first optical adhesive:
and fixedly connecting the cover plate with the touch panel through a second optical adhesive.
12. The method of claim 11, further comprising, prior to the step of fixedly connecting the cover plate to the touch panel via the second optical adhesive:
forming a second light shielding layer on the cover plate;
the second light shielding layer is in contact with the second optical adhesive part, and the second light shielding layer is located in the non-display area.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114428422A (en) * | 2020-10-29 | 2022-05-03 | 京东方科技集团股份有限公司 | Backlight module, display module and display device |
| CN214335688U (en) * | 2020-11-09 | 2021-10-01 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113410271B (en) * | 2021-06-08 | 2022-08-02 | 昆山国显光电有限公司 | Display panel, display panel bonding method and display device |
| CN113341610A (en) * | 2021-06-28 | 2021-09-03 | 业成科技（成都）有限公司 | Liquid crystal display module and electronic equipment |
| CN113870703B (en) * | 2021-09-27 | 2023-10-24 | 京东方科技集团股份有限公司 | Display module and display device |
| CN117203574A (en) * | 2022-04-02 | 2023-12-08 | 京东方科技集团股份有限公司 | Display device and medical endoscopic apparatus |
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