TWI530830B - Touch display module and assemble method thereof, touch screen, and display device - Google Patents

Description

Touch display module and assembly method thereof, touch screen and display device

The invention provides a touch display module and an assembly method thereof, a touch screen and a display device.

Existing display devices, touch screens, or touch display modules and the like generally include a cover plate (Cover Glass or Cover Lens) covering the display module or the touch sensing structure, wherein the display module or the touch sensing structure is usually optically bonded to the cover. The inner side of the board, and the inner side of the edge of the cover is usually covered with a black shading ink for shielding the peripheral wiring of the touch screen or the touch display module. However, when the edge of the cover is curved, the black shading ink at the curved surface may block ultraviolet light. In addition, the opaque display module or the peripheral wiring of the touch screen may form a certain ultraviolet light. The occlusion makes the optical glue adjacent to the curved surface difficult to solidify, thereby reducing the reliability of the entire display device, the touch screen or the touch display module.

In view of this, it is necessary to provide a touch display module with better colloid curing effect.

It is also necessary to provide a method of assembling a touch display module with better colloidal curing effect.

It is also necessary to provide a touch screen and a display device with better colloidal curing effect.

A touch display module includes a cover, a touch sensing structure, a first gel layer, and a display module, the cover includes an inner surface, the touch sensing structure is disposed on an inner surface of the cover, and the display module passes The first colloid layer is adhered to a side of the touch sensing structure away from the cover plate, and the cover plate further includes a main body portion and a curved portion connected to an edge of the main body portion. The first colloid layer is a photocurable colloid layer, and the inner surface of the curved portion has a reflective structure for reflecting light to the first colloid layer.

A method for assembling a touch display module, comprising the steps of: providing a touch screen, the touch screen comprising a cover plate and a touch sensing structure, the cover plate comprising an inner surface, the touch sensing structure being disposed on an inner surface of the cover plate, the cover plate The utility model further includes a main body portion, a curved portion connected to the edge of the main body portion, the inner surface of the curved portion has a reflective structure, a first colloid layer and a display module are provided, and the display module is adhered to the first colloid layer The touch sensing structure is away from a side of the cover, wherein the first colloid layer is a photocurable colloid layer; and the first light source device is provided, and the first light source device is disposed on the display module away from the cover The side is adjacent to the curved portion such that the reflective structure reflects light emitted by the first light source device to the first colloid layer to cure the first colloid layer adjacent to the inner surface of the curved portion.

A display device includes a cover plate, a first colloid layer, and a display module, the cover plate includes an inner surface, and the display module is adhered to the inner surface of the cover plate by the first colloid layer, and the cover plate further Defining a body portion and a curved portion connected to an edge of the body portion, wherein the first colloid layer is a photocurable colloid layer, and an inner surface of the curved portion has a reflective structure for reflecting light to the first Colloid layer.

A touch screen includes a cover, a first colloid layer and a touch sensitive film, the cover includes an inner surface, and the touch sensing structure is adhered to the inner surface of the cover by the first adhesive layer, and the cover is further defined a main body portion and a curved portion connected to an edge of the main body portion, wherein the first colloid layer is a photocurable colloid layer, and an inner surface of the curved portion has a reflective structure for reflecting light to the first colloid layer .

Compared with the prior art, the inner surface of the curved portion of the cover of the present invention has a reflective structure capable of reflecting light to the first colloid layer to cure the first colloid layer adjacent to the curved portion, and the touch The display module, the display device or the touch screen has a better colloid curing effect and higher reliability.

100, 200, 300, 400, 500‧‧‧ touch display module

110, 610‧‧‧ cover

120‧‧‧Touch sensing structure

130, 140, 630‧‧ ‧ colloid layer

150, 650‧‧‧ display module

111, 211, 611‧‧‧ inner surface

112, 512‧‧‧ outer surface

113, 213, 613 ‧ ‧ main body

114, 214, 414, 514, 614‧‧ ‧ bending

160, 260, 360, 460, 560, 660 ‧ ‧ reflective structure

121‧‧‧Main touch area

122‧‧‧Surrounded wiring area

123‧‧‧First transparent conductive line

124‧‧‧Second transparent conductive line

125‧‧‧ Transmission lines

126‧‧‧Soft circuit board

170, 270, 370, 470, 570, 670‧‧ ‧ shading layer

101‧‧‧ touch screen

181, 182, 183, 184‧‧ ‧ light source devices

261, 631‧‧ ‧ grooves

215, 415, 515‧‧‧ first end

216, 416, 516‧‧‧ second end

262, 362, 462, 562‧ ‧ reflective film

S1, S2, S3‧‧‧ steps

600‧‧‧ display device

651‧‧‧Main display area

652‧‧‧Non-display area

1 is a perspective exploded view of a first embodiment of a touch display module of the present invention.

2 is a schematic view showing the assembly of the touch display module shown in FIG. 1.

Figure 3 is a cross-sectional view of Figure 2 taken along line III-III.

4 is a schematic plan view showing the structure of the touch sensing structure shown in FIG. 1.

FIG. 5 is a flow chart of a method of assembling the touch display module of the present invention.

6 and 7 are schematic structural views of an assembly process of the touch display module of the present invention.

8 is a cross-sectional structural view showing a second embodiment of the touch display module of the present invention.

9 is a cross-sectional structural view showing a third embodiment of the touch display module of the present invention.

10 is a cross-sectional structural view showing a fourth embodiment of the touch display module of the present invention.

11 is a cross-sectional structural view showing a fifth embodiment of the touch display module of the present invention.

Figure 12 is a cross-sectional view showing a preferred embodiment of the display device of the present invention.

Please refer to FIG. 1 , FIG. 2 and FIG. 3 . FIG. 1 is a perspective exploded view of the touch display module 100 of the present invention. FIG. 2 is a schematic view of the assembled touch display module 100 of FIG. 1 . 2 Schematic diagram of the section along line III-III. The touch display module 100 includes a cover 110 , a touch sensing structure 120 , a colloid layer 140 , a colloid layer 130 , and a display module 150 . The cover 110 includes an inner surface 111 and an outer surface 112 on the opposite side. The outer surface 112 can serve as a display surface of the touch display module 100 and a touch surface of the touch display module 100. The touch sensing structure 120 is adhered to the inner surface 111 of the cover 110 through the glue layer 130. The display module 150 is adhered to the side of the touch sensing structure 120 away from the cover 110, and the display module 150 can be a liquid crystal display module including a liquid crystal panel and a backlight module. It can be understood that in a modified embodiment, the touch sensing structure 120 can be directly formed on the cover plate 110.

The cover plate 110 further defines a main body portion 113 and a curved portion 114 connected to an edge of the main body portion 113. The main body portion 113 and the curved portion 114 define a receiving space. The touch sensing structure 120, the colloid layers 140 and 130, and the display module 150 can be accommodated in the receiving space. The material of the cover plate 110 is transparent glass.

The colloid layer 140 is a photocured colloid layer. The inner surface 111 of the curved portion 114 has a reflective structure 160 for reflecting light to the colloid layer 140 to cure the colloid layer 140 adjacent the curved portion 114. Additionally, preferably, the colloid layer 130 is also a photocured colloid layer. The reflective structure 160 is also used to reflect light to the colloid layer 130 such that the colloid layer 130 adjacent the curved portion 114 is cured.

In the embodiment, the reflective structure 160 is attached to the inner surface of the curved portion 114. The reflective film of 111 is either a reflective coating printed or coated on the inner surface 111 of the curved portion 114. Specifically, the reflective film may have substantially the same structure as the reflective sheet for the backlight module, and the reflective coating material may include white ink, silver ink, high reflectivity metal, or other high reflectivity. Molecular material.

Further, please refer to FIG. 4 , which is a schematic diagram of a planar structure of the touch sensing structure 120 . In this embodiment, the touch sensing structure 120 is a touch sensitive film and is a capacitive touch sensing structure. The touch sensing structure 120 is further defined with a main touch area 121 and a peripheral wiring area 122 connecting the edges of the main touch area 121. The main touch area 121 is generally a transparent touchable area, and includes a first transparent conductive line 123 and a second transparent conductive line 124 insulated from the first transparent conductive line 123. The first transparent conductive line 123 and the The second transparent conductive line 124 defines a plurality of touch sensing capacitors. The peripheral wiring area 122 generally includes an opaque transmission line 125 such as silver paste; the transmission line 125 is electrically connected to the first and second transparent conductive lines 123 and 124. The flexible circuit board 126 is electrically connected to the transmission line 125 in the peripheral wiring area 122 for transmitting the touch driving signals to the first and second transparent conductive lines 123 and 124 through the transmission line 125.

In this embodiment, the touch display module 10 further includes a light shielding layer 170 disposed between the reflective structure 160 and the inner surface 111 of the curved portion 114 and configured to block the peripheral wiring region 122. The light shielding layer 170 is a black shading ink, a gray shading ink, or a white shading ink.

Please refer to FIG. 5 , which is a flowchart of a method for assembling the touch display module 100 . The assembly method includes the following steps:

In step S1, a touch screen 101 is provided. The touch screen 101 includes a cover 110 and a touch sensing structure 120. The touch sensing structure 120 is disposed on the inner surface 111 of the cover 110. The cover plate 110 includes a main body portion 113 and a curved portion 114 connected to an edge of the main body portion 113. The inner surface 111 of the curved portion 114 has a reflective structure 160.

Specifically, the step S1 may further include the following steps: providing the cover 110, the colloid layer 130, and the touch sensing structure 120, and bonding the touch sensing structure 120 to the inner surface 111 of the cover 110 through the colloid layer 130. The inner surface 111 of the curved portion 114 and the reflective structure 160 further have a light shielding layer 170 for shielding the peripheral wiring region 122 of the touch sensing structure 120. Referring to FIG. 6, when the colloid layer 130 is a photocurable colloid layer, the step S1 may further include providing a light source device 181 that emits ultraviolet light to cure the colloid layer 130. Specifically, the light source devices 181 and 182 may be disposed on a side of the cover 110 away from the touch sensing structure 120 or/and a side of the touch sensing structure 120 away from the cover 110, and the corresponding colloid for the main body 113 In the layer 130, the ultraviolet light emitted from the light source device 181 can be incident on the colloid layer 130 via the main body portion 113. The ultraviolet light emitted from the light source device 182 can also enter the colloid layer 130 via the touch sensing structure 120 corresponding to the main body portion 113. The body portion 113 is cured for the colloid layer 130; and for the curved portion 114 corresponding to the colloid layer 130, since the light shielding layer 170 and the peripheral wiring region 122 are substantially opaque, the ultraviolet light emitted by the light source devices 181 and 182 It is difficult to directly illuminate, but the reflective structure 160 of the inner surface 111 of the curved portion 114 can reflect the ultraviolet light emitted by the light source device 182 to cure the colloid layer 130 adjacent to the curved portion 114, so that the colloid layer 130 is completely cured.

In step S2, the colloid layer 140 and the display module 150 are provided, and the display module 150 is adhered to the side of the touch sensing structure 120 away from the cover 110 by the colloid layer 140, wherein the colloid layer 140 is also light. Curing the colloid layer.

Step S3, providing a light source device 183, please refer to FIG. 7, and setting the light source device 183 The display module 150 is disposed on a side of the display module 150 away from the cover 110 and adjacent to the curved portion 114. Although the display module 150 may block the light emitted by the light source device 183, the reflective structure 160 reflects the light source. Light from device 183 is applied to the colloid layer 140 to cure the colloid layer 140 adjacent the bend 114.

Specifically, the main body portion 113 is a light transmitting portion. Referring to FIG. 7 , the step S3 further includes the following: providing a light source device 184 and disposing the light source device 184 on a side of the cover plate 110 away from the touch sensing structure 120 . The colloid layer 140 corresponding to the main body portion 113 is cured.

The inner surface 111 of the curved portion 114 of the cover plate 110 of the present invention has a reflective structure 160 that is capable of reflecting light to the colloid layer 140 such that it is adjacent to the inner surface 111 of the curved portion 114 as compared to the prior art. The colloid layer 140 is cured, and the colloid layer 130 is cured to reflect the colloid layer 130 adjacent to the curved portion 114. The colloidal curing effect of the touch display module 100 is better and the reliability is higher.

Referring to FIG. 8 , FIG. 8 is a cross-sectional structural diagram of a second embodiment of the touch display module 200 of the present invention. The main difference between the touch display module 200 of the embodiment and the touch display module 100 of the first embodiment is that: Structure 260 includes grooves and/or protrusions formed in inner surface 211 of curved portion 214. Specifically, in the embodiment, the reflective structure 260 includes a plurality of continuously disposed V-shaped grooves 261 having a continuous zigzag cross section, and the curved portion 214 includes the adjacent body. The first end 215 of the portion 213 and the second end 216 on the opposite side extend from the first end to the second end. Preferably, the inner surface 211 of the curved portion 214 forms a plurality of continuous V-shaped grooves, the light shielding layer 270 uniformly covers the plurality of continuous V-shaped grooves, and the reflective film 262 (or the reflective coating) further uniformly covers the light shielding Layer 270 thus defines the reflective structure 260 on the inner surface 211 of the curved portion 214.

In the second embodiment, the reflective structure 260 has a continuous zigzag cross section, thereby forming a zigzag reflecting surface having a cross section, and the zigzag reflecting surface is more effective for reflecting light from various directions to the colloid layer. The curing of the colloid layers 230 and 240 is made more thorough.

Of course, it can be understood that, in a modified embodiment of the second embodiment, when the light shielding layer 270 is a white light shielding layer, such as a white light shielding ink, since the white light shielding layer also has good reflection characteristics, the light shielding layer is covered. The reflective film 262 (or reflective coating) of the layer 270 may also be omitted, and the white light-shielding layer uniformly covers the groove to form a reflective surface, and achieves substantially the same technical effect as that of the reflective film 262 (or reflective coating).

Referring to FIG. 9 , FIG. 9 is a cross-sectional structural diagram of a third embodiment of the touch display module 300 of the present invention. The main difference between the touch display module 300 of the embodiment and the touch display module 200 of the second embodiment is that: The structure 360 has a continuous wave shape and includes a plurality of continuously disposed wave shaped grooves 361.

Referring to FIG. 10, FIG. 10 is a schematic cross-sectional view of a fourth embodiment of the touch display module 400 of the present invention. The main difference between the touch display module 400 of the embodiment and the touch display module 200 of the second embodiment is that: The structure 460 has a V-shaped cross section, and a reflective film 462 (or a reflective coating) is uniformly disposed above the groove so that the reflective structure 460 defines a V-shaped reflective surface, and the curved portion 414 includes the adjacent body. A first end 415 of the portion and a second end 416 on the opposite side, the V-shape of the cross-section of the reflective structure 460 extends from the first end 415 to the second end 416.

Referring to FIG. 11 , FIG. 11 is a cross-sectional structural diagram of a fifth embodiment of the touch display module 500 of the present invention. The main difference between the touch display module 500 of the embodiment and the touch display module 400 of the fourth embodiment is that: The cross section of the structure 560 is curved The arc of the cross section of the reflective structure 560 extends from the first end 515 of the curved portion 514 to the second end 516, and the curvature of the arc of the cross section of the reflective structure 560 is greater than the arc of the outer surface 512 of the curved portion 514. The curvature of the shape.

Of course, it can be understood that, in the third to fifth embodiments, when the light shielding layers 370, 470, and 570 are white light shielding layers, such as white shading ink, the reflective film 362 covering the light shielding layers 370, 470, and 570. 462 and 562 (or reflective coating) may also be omitted, and the white light-shielding layer uniformly covers the groove to form a reflecting surface, and achieves substantially the same technical effect as the reflective films 362, 462 and 562 (or reflective coating). .

Please refer to FIG. 12. FIG. 12 is a cross-sectional structural diagram of a display device 600 according to a preferred embodiment of the present invention. The display device 600 includes a cover 610, a colloid layer 630, and a display module 650. The cover 610 includes an inner surface 611. The display module 650 is adhered to the inner surface 611 of the cover 610 through the glue layer 630. The cover plate 610 further defines a main body portion 613 and a curved portion 614 connected to an edge of the main body portion 613. The colloid layer 630 is a photocurable colloid layer, and the inner surface 611 of the curved portion 614 has a reflective structure 660 for reflecting light to the colloid layer 630 to bring the colloid layer adjacent to the inner surface of the curved portion 614. 630 cured.

The reflective structure 660 can include a reflective film attached to the inner surface 611 of the curved portion 614 or a reflective coating printed or coated on the inner surface 611 of the curved portion 614. Further, the display module 650 includes a main display area 651 and a non-display area 652 (also referred to as a bezel area) connected to the edge of the main display area 651. The display device 650 further includes a light shielding layer 670. The reflective structure 660 is interposed between the inner surface 611 of the curved portion 614 and is used to block the non-display area 652. At this time, the reflective structure 660 may include a reflective film attached to the side of the light shielding layer 670 away from the cover 610 or printed or A reflective coating applied to the side of the cover layer 610 of the light shielding layer 670.

Specifically, the display module 650 can be an in-cell touch display module or an ordinary liquid crystal display module. In the embodiment or the modified embodiment of the present embodiment, the cover 610 and the reflective structure 660 may have the same structure as the cover plate and the reflective structure described above in FIGS. 1 to 11 , and are no longer Narration.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧Touch display module

110‧‧‧ cover

120‧‧‧Touch sensing structure

130, 140‧‧ ‧ colloid layer

150‧‧‧ display module

111‧‧‧ inner surface

112‧‧‧ outer surface

113‧‧‧ Main body

114‧‧‧Bend

160‧‧‧Reflective structure

121‧‧‧Main touch area

122‧‧‧Surrounded wiring area

170‧‧‧Lighting layer

Claims (31)

A touch display module includes a cover, a touch sensing structure, a first gel layer, and a display module, the cover includes an inner surface, the touch sensing structure is disposed on an inner surface of the cover, and the display module passes The first colloid layer is adhered to a side of the touch sensing structure away from the cover plate, and the cover plate further defines a main body portion and a bent portion connected to the edge of the main body portion, wherein the first colloid layer is photocured a colloid layer, the inner surface of the curved portion has a reflective structure for reflecting light to the first colloid layer, the touch sensing structure includes a main touch area and a peripheral wiring area connecting the edge of the main touch area, the touch display The module further includes a light shielding layer disposed between the reflective structure and an inner surface of the curved portion and configured to block the peripheral wiring region. The touch display module of claim 1, wherein the reflective structure comprises a reflective film attached to an inner surface of the curved portion. The touch display module of claim 1, wherein the reflective structure comprises a reflective coating printed or coated on an inner surface of the curved portion. The touch display module of claim 3, wherein the reflective coating material of the reflective structure comprises ink or metal. The touch display module of claim 1, wherein the light shielding layer is a black shading ink, a gray shading ink or a white shading ink. The touch display module of claim 1, wherein the reflective structure comprises a groove or protrusion formed on an inner surface of the curved portion. The touch display module of claim 6, wherein the reflective structure has a continuous zigzag cross section and includes a plurality of continuously disposed V-shaped grooves. The touch display module of claim 6, wherein the reflective structure has a continuous wave section And includes a plurality of undulating grooves arranged in series. The touch display module of claim 6, wherein the reflective structure has a V-shaped cross section, the curved portion includes a first end adjacent to the main body portion and a second end on the opposite side, the cross section of the reflective structure The V shape extends from the first end to the second end. The touch display module of claim 6, wherein the reflective structure has an arcuate cross section, the curved portion including a first end adjacent to the main body portion and a second end on the opposite side, a cross section of the reflective structure An arc extends from the first end to the second end, and an arcuate curvature of a cross section of the reflective structure is greater than an arcuate curvature of an outer surface of the curved portion. The touch display module of claim 6, wherein the reflective structure further comprises a reflective film or a reflective coating disposed on the recess. The touch display module of claim 11, wherein the touch sensing structure comprises a main touch area and a peripheral wiring area connecting the edge of the main touch area, the touch screen further comprising a light shielding layer, wherein the light shielding layer is disposed on the reflective film Between the inner surfaces of the curved portion or between the reflective coating and the inner surface of the curved portion and for shielding the peripheral wiring region. The touch display module of claim 6, wherein the touch sensing structure comprises a main touch area and a peripheral wiring area connecting the edge of the main touch area, the touch screen further comprising a light shielding layer, the light shielding layer uniformly covering the curved portion The inner surface defines the reflective structure at a location of the recess, and the light shielding layer is further configured to block the peripheral wiring area. The touch display module of claim 13, wherein the light shielding layer is a white light shielding layer. The touch display module of claim 1, wherein the touch display module further includes a second colloid layer, the second colloid layer is located between the touch sensing structure and the cover, and the touch sensing structure and the cover are The plate is bonded to the body, and the second colloid layer is also a photocurable colloid layer, and the reflective structure is further configured to reflect light to the second colloid layer. The touch display module of claim 1, wherein the touch sensing structure is directly formed on the cover. The touch display module of claim 1, wherein the touch sensing structure is a capacitive touch sensing structure, comprising a first conductive line and a second conductive line insulated from the first conductive line, the first conductive line A plurality of touch sensing capacitors are defined with the second conductive line. The touch display module of claim 1, wherein the cover material is transparent glass. A method for assembling a touch display module, comprising the steps of: providing a touch screen, the touch screen comprising a cover plate and a touch sensing structure, the cover plate comprising an inner surface, the touch sensing structure being disposed on an inner surface of the cover plate, the cover plate Further defined is a body portion and a curved portion connected to the edge of the body portion, the inner surface of the curved portion has a reflective structure; a first colloid layer and a display module are provided, and the display module is adhered by the first colloid layer a first light source layer is disposed on the side of the display module, and the first light source device is disposed on the side of the display module away from the cover plate. One side is adjacent to the curved portion such that the reflective structure reflects light emitted by the first light source device to the first colloid layer to cure the first colloid layer adjacent to the inner surface of the curved portion. The method of assembling a touch display module according to claim 19, wherein the main body portion is a light transmitting portion, the method further comprising the steps of: providing a second light source device or the first light source device, and the second light source The device or the first light source device is disposed on a side of the cover plate away from the touch sensing structure to cure the first colloid layer corresponding to the main body portion. The method of assembling a touch display module according to claim 19, wherein the touch screen further comprises a second colloid layer, the second colloid layer being located between the touch sensing structure and the cover, the touch sensing structure and the cover The plate is bonded to the body, and the second colloid layer is also a photocurable colloid layer, and the reflective structure is further configured to reflect light to the second colloid layer. The method of assembling a touch display module according to claim 19, wherein the reflective structure comprises a reflective film attached to an inner surface of the curved portion. The method of assembling a touch display module according to claim 19, wherein the reflective structure comprises a print A reflective coating applied to the inner surface of the bend. The method of assembling a touch display module according to claim 19, wherein the reflective structure comprises a groove or a protrusion formed on an inner surface of the curved portion. A display device includes a cover plate, a first colloid layer, and a display module, the cover plate includes an inner surface, and the display module is adhered to the inner surface of the cover plate by the first colloid layer, and the cover plate further Defining a body portion and a curved portion connected to an edge of the body portion, wherein the first colloid layer is a photocurable colloid layer, and an inner surface of the curved portion has a reflective structure for reflecting light to the first The display module includes a main display area and a non-display area connecting the edges of the main display area, and the display device further includes a light shielding layer disposed between the reflective structure and the inner surface of the curved portion. The occlusion of the non-display area is blocked. The display device of claim 25, wherein the display module is an in-cell touch display module. The display device of claim 25, wherein the reflective structure comprises a reflective film attached to an inner surface of the curved portion. The display device of claim 25, wherein the reflective structure comprises a reflective coating printed or coated on an inner surface of the curved portion. The display device of claim 28, wherein the material of the reflective coating of the reflective structure comprises ink or metal. The display device of claim 25, wherein the reflective structure comprises a groove or protrusion formed on an inner surface of the curved portion. A touch screen includes a cover, a first colloid layer and a touch sensitive film, the cover includes an inner surface, and the touch sensing structure is adhered to the inner surface of the cover by the first adhesive layer, and the cover is further defined a main body portion and a curved portion connected to an edge of the main body portion, wherein the first colloid layer is a photocurable colloid layer, and an inner surface of the curved portion has a reflective structure for reflecting light to the first colloid layer The display module includes a main display area and is connected to the main display The non-display area at the edge of the area, the display device further includes a light shielding layer disposed between the reflective structure and the inner surface of the curved portion and configured to block the non-display area.