CN109118954B - Straight pull type display screen and pressing method thereof - Google Patents
Straight pull type display screen and pressing method thereof Download PDFInfo
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- CN109118954B CN109118954B CN201810851911.3A CN201810851911A CN109118954B CN 109118954 B CN109118954 B CN 109118954B CN 201810851911 A CN201810851911 A CN 201810851911A CN 109118954 B CN109118954 B CN 109118954B
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- 238000003825 pressing Methods 0.000 title claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 31
- 230000001070 adhesive effect Effects 0.000 claims abstract description 31
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims description 6
- 239000002313 adhesive film Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a straight pull type display screen and a pressing method thereof, wherein the method comprises the following steps: forming at least two first conductive blocks on the display panel, and forming at least two second conductive blocks for aligning with the at least two first conductive blocks on the IC panel; coating conductive adhesive on a binding area of the display panel, and coating insulating adhesive on at least two first conductive blocks; and when the capacitance value of any one capacitor reaches the maximum value, the IC panel is moved towards the display panel, so that the IC panel and the display panel are pressed together. The invention can accurately judge whether the binding area of the IC panel and the binding area of the display panel are aligned and pressed without an optical microscope.
Description
Technical Field
The invention relates to the technical field of display, in particular to a straight pull type display screen and a pressing method thereof.
Background
In 2017, with the continuous release of Samsung S8/Note 8, IPhone X and other full-screen mobile phones, full-screen technology is the current trend. The comprehensive screen means that the front face of the mobile phone is completely provided with a screen for displaying effective information, the periphery of the mobile phone is designed without a frame, the screen occupation ratio is close to 100%, the display area of the mobile phone is greatly increased, and the technical aesthetic feeling is deeply loved by mass consumers. However, due to the problems of the existing panel design and manufacturing process, such as the positions of the receiver, the front camera, fingerprint identification, iris identification and the like, will occupy a part of the display area, so the screen occupation ratio of the existing full-screen product is only about 90%. The scheme of the conventional full-screen technology is generally that a Chip On Flex (COF) or Chip On Film (COF)/COP (Chip On PI), i.e., a PI layer On an integrated driving Chip (IC), is used for packaging, a Driver IC (driving IC) is bound On a PI layer and then bent to the back of a display panel, and because the PI layer has the problem of the minimum bending radius, frames are inevitably left in a bending area to affect the actual display area. The straight pull type display screen is formed by pressing an Integrated Circuit (IC) panel onto a binding area on the back surface (PI layer back surface) of a display panel, so that the limitation of the minimum bending radius is avoided, the frame of the display panel can be shortened to the limit, and the screen occupation ratio of more than 90% can be easily achieved. However, since the IC of the czochralski display panel is attached to the back surface of the PI layer and the EL layer (light-emitting layer) on the PI layer is opaque, the IC bonding state cannot be inspected by a conventional camera by inspecting the particle state of the ACF (anisotropic conductive film).
Fig. 1 is a schematic diagram illustrating a currently-used optical means for inspecting a press-fit state between an IC panel and a display panel, where 1 'is a glass substrate, 2' is a PI layer, 3 'is an array substrate, 4' is a driver IC panel, 5 'is a flexible printed circuit board, 6' is an anisotropic conductive film, 7 'is an optical microscope, 41' is a bonding terminal on the driver IC panel, 51 'is a bonding terminal on the flexible printed circuit board, and 21' is a bonding terminal on the PI layer. When the IC panel and the display panel are pressed, the glass substrate and the PI layer have certain light transmittance, and the pressed state can be observed by an optical microscope. However, in the czochralski display panel with the IC panel behind the display panel as shown in fig. 2, the bonding particle state of the anisotropic conductive film cannot be optically checked to determine the binding state between the IC panel and the display panel due to the poor light transmittance of the EL layer above the PI layer.
Disclosure of Invention
In order to solve the technical problem, the invention provides the straight pull type display screen and the pressing method thereof, which can accurately judge whether the binding area of the IC panel and the binding area of the display panel are aligned and pressed without an optical microscope, and can be suitable for the display screen with higher requirement on the screen occupation ratio.
The invention provides a pressing method of a straight pull type display screen, which comprises the following steps:
forming at least two first conductive blocks on a display panel, and forming at least two second conductive blocks on an IC panel for aligning with the at least two first conductive blocks, wherein the at least two first conductive blocks are used as alignment marks of a bonding area of the display panel, and the at least two second conductive blocks are used as alignment marks of the bonding area of the IC panel;
coating conductive adhesive on the binding area of the display panel, and coating insulating adhesive on the at least two first conductive blocks;
and fixing the IC panel above the display panel to enable the IC panel to be parallel to the display panel, moving the IC panel along the parallel direction of the display panel to enable the at least two second conductive blocks to be in one-to-one correspondence with the at least two first conductive blocks to respectively form at least two capacitors, and moving the IC panel towards the display panel when the capacitance value of any one capacitor reaches the maximum value to enable the IC panel to be in press fit with the display panel.
Preferably, the IC panel is fixed above the display panel, specifically:
the IC panel is adsorbed by the sucking disc and fixed above the display panel, so that the edge of the IC panel is aligned with the alignment mark line outside the binding area of the display panel.
Preferably, a gap is left between the conductive adhesive and the insulating adhesive.
Preferably, when the IC panel is moved in a parallel direction of the display panel, a first conductive block and a second conductive block for alignment form a pair of conductive blocks, a voltage is applied between at least one pair of conductive blocks, and a current flowing through the first conductive block or the second conductive block is detected, and when the current flowing through the first conductive block or the second conductive block is the maximum, it is determined that a capacitance value of a capacitance formed between the first conductive block and the second conductive block reaches the maximum.
Preferably, when the IC panel is moved toward the display panel, a voltage is applied between at least one pair of conductive blocks, and when the current flowing through the first conductive block or the second conductive block reaches a set current value, the IC panel is stopped from being moved, so that the IC panel and the display panel are pressed together.
Preferably, a width of a first conductive block of the pair of conductive blocks is the same as a width of a second conductive block;
the conductive adhesive is an anisotropic conductive adhesive film.
Preferably, the display panel includes a first binding region and a second binding region, the display panel includes two sets of first conductive blocks, and each set of first conductive blocks includes two columns of first conductive blocks; the first group of first conductive blocks are distributed on two sides of a first binding area of the display panel, the second group of first conductive blocks are distributed on two sides of a second binding area of the display panel, the first group of first conductive blocks are used as alignment marks of the first binding area of the display panel, and the second group of first conductive blocks are used as alignment marks of the second binding area of the display panel;
the IC panel comprises a drive IC panel and a touch IC panel, the drive IC panel and the touch IC panel respectively comprise two rows of second conductive blocks, the two rows of second conductive blocks on the drive IC panel are distributed on two sides of a binding area of the drive IC panel, and the two rows of second conductive blocks on the touch IC panel are distributed on two sides of the binding area of the touch IC panel;
and when the IC panel is moved along the parallel direction of the display panel, aligning two columns of second conductive blocks on the drive IC panel with the first group of first conductive blocks, and aligning two columns of second conductive blocks on the touch IC panel with the second group of first conductive blocks.
The present invention also provides a direct pull display screen, comprising: a display panel and an IC panel; the display panel is provided with at least two first conductive blocks, and the IC panel is provided with at least two second conductive blocks; the at least two first conductive blocks are used as alignment marks of the binding area of the display panel, and the at least two second conductive blocks are used as alignment marks of the binding area of the IC panel;
and the at least two first conductive blocks are also provided with insulating glue, the binding area of the display panel is also provided with conductive glue, and the at least two first conductive blocks and the at least two second conductive blocks are respectively aligned and pressed one by one.
Preferably, the display panel includes a first binding region and a second binding region, the display panel includes two sets of first conductive blocks, and each set of first conductive blocks includes two columns of first conductive blocks; the first group of first conductive blocks are distributed on two sides of a first binding area of the display panel, the second group of first conductive blocks are distributed on two sides of a second binding area of the display panel, the first group of first conductive blocks are used as alignment marks of the first binding area of the display panel, and the second group of first conductive blocks are used as alignment marks of the second binding area of the display panel;
the IC panel comprises a drive IC panel and a touch IC panel, the drive IC panel and the touch IC panel respectively comprise two rows of second conductive blocks, the two rows of second conductive blocks on the drive IC panel are distributed on two sides of a binding area of the drive IC panel, and the two rows of second conductive blocks on the touch IC panel are distributed on two sides of the binding area of the touch IC panel;
the two columns of second conductive blocks on the driving IC panel are aligned with the first group of first conductive blocks, and the two columns of second conductive blocks on the touch IC panel are aligned with the second group of first conductive blocks.
Preferably, a gap is reserved between the conductive adhesive and the insulating adhesive, and the conductive adhesive is an anisotropic conductive adhesive film.
The implementation of the invention has the following beneficial effects: according to the invention, the first conductive block is added on the display panel, the second conductive block is added on the IC panel, and when the IC panel is pressed with the display panel, the IC panel and the display panel have a buffer effect through the supporting effect of the first conductive block and the second conductive block, so that the IC panel can be prevented from being broken. Secondly, the invention can accurately judge whether the first conductive block and the second conductive block are aligned by detecting the size of the capacitor formed between the first conductive block and the second conductive block, and further accurately judge whether the IC panel and the display panel are aligned and pressed without adopting an optical microscope for observation, thereby saving the cost of equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating a conventional optical method for inspecting a press-fit state between an IC panel and a display panel.
FIG. 2 is a schematic diagram of a Czochralski display panel with an IC panel corresponding to the back of the display panel.
Fig. 3 is a top view of a display panel provided by the present invention.
Fig. 4 is a top view of an IC panel provided by the present invention.
Fig. 5 is a schematic diagram of the IC panel provided by the present invention starting to move along the parallel direction of the display panel.
Fig. 6 is a schematic diagram of the IC panel provided by the present invention starting to move toward the display panel.
Fig. 7 is a schematic diagram of the IC panel and the display panel provided by the present invention after lamination.
FIG. 8 is a top view of a display panel including two bonding areas according to the present invention.
Fig. 9 is a top view of the driving IC panel and the touch IC panel provided in the present invention.
Fig. 10 is a schematic diagram of the driving IC panel and the touch IC panel and the display panel provided by the present invention after being laminated.
Detailed Description
The invention provides a pressing method of a straight pull type display screen, which comprises the following steps:
as shown in fig. 3, at least two first conductive blocks 12 are formed on the display panel 1, and as shown in fig. 4, at least two second conductive blocks 22 for aligning with the at least two first conductive blocks 12 are formed on the IC (integrated circuit) panel 2, the at least two first conductive blocks 12 are used as alignment marks of the bonding areas 11 of the display panel 1, and the at least two second conductive blocks 22 are used as alignment marks of the bonding areas 21 of the IC panel 2; there are a plurality of binding terminals 111 in the binding region 11 and a plurality of binding terminals 211 in the binding region 21.
As shown in fig. 5, a conductive adhesive 3 is coated on a bonding area 11 of the display panel 1, and an insulating adhesive 4 is coated on at least two first conductive blocks 12; a gap is left between the conductive adhesive 3 and the insulating adhesive 4.
As shown in fig. 5, the IC panel 2 is fixed above the display panel 1, such that the IC panel 2 is parallel to the display panel 1, and the IC panel 2 is moved along the parallel direction of the display panel 1, such that the at least two second conductive blocks 22 are in one-to-one correspondence with the at least two first conductive blocks 12, as shown in fig. 6, at least two capacitors are respectively formed, and when the capacitance value of any one of the capacitors reaches the maximum, the IC panel 2 is moved toward the display panel 1, such that the IC panel 2 and the display panel 1 are pressed together. Fig. 7 shows a schematic diagram of the IC panel 2 and the display panel 1 after being bonded.
A gap is left between the conductive adhesive 3 and the insulating adhesive 4, so that conductive particles in the conductive adhesive 3 can be prevented from overflowing to the lower part of the flat capacitor formed by the first conductive block 12 and the second conductive block 22, and detection errors can be prevented.
Generally, since the IC panel 2 is long and thin, when the IC panel 2 is pressed against the display panel 1 by a conventional pressing method, the IC panel 2 is easily deformed, and in the present invention, when the IC panel 2 is pressed against the display panel 1, the deformation of the IC panel 2 can be reduced by the supporting effect of the first conductive bumps 12 and the second conductive bumps 22.
Fixing the IC panel 2 above the display panel 1 specifically includes:
the IC panel 2 is sucked by the suction cup, and the IC panel 2 is fixed above the display panel 1 so that the edge of the IC panel 2 is aligned with the alignment mark line outside the bonding region 11 of the display panel 1.
For example, the IC panel 2 is first sucked by the suction cup, the height of the IC panel 2 is fixed, and the lower left edge of the IC panel 2 shown in fig. 4 is aligned with the upper right alignment mark line 13 of the display panel 1 shown in fig. 3, so that the IC panel 2 moves in the direction parallel to the display panel 1 and to the lower left alignment mark line 13 of the display panel 1 shown in fig. 3 until the upper left edge of the IC panel 2 shown in fig. 4 is aligned with the upper left alignment mark line 13 of the display panel 1.
When the IC panel 2 is moved in the parallel direction of the display panel 1, a pair of conductive blocks is formed by one first conductive block 12 and one second conductive block 22 for alignment, a voltage is applied between at least one pair of conductive blocks, and a current flowing through the first conductive block 12 or the second conductive block 22 is detected, and when the current flowing through the first conductive block 12 or the second conductive block 22 is the maximum, it is determined that the capacitance value of a capacitor formed between the first conductive block 12 and the second conductive block 22 is the maximum.
The voltage U is applied to the capacitor C formed by a pair of conductive blocks, the IC panel 2 may be slightly moved back and forth, and the current I flowing through the capacitor C is detected, when the first conductive block 12 and the second conductive block 22 are completely aligned, the area of the two plates forming the capacitor C is the largest, and at this time, the capacitor C is the largest, because the current I is Q/t CU/t, Q is the amount of charge on the first conductive block 12 or the second conductive block 22, t is the time required for releasing the charge, U is a fixed value, and the larger the capacitor C is, the larger the current I flowing through the capacitor C is, that is, the first conductive block 12 and the second conductive block 22 are completely overlapped in the upper and lower positions.
When the IC panel 2 is moved toward the display panel 1, a voltage is applied between at least a pair of conductive blocks, and when the current flowing through the first conductive block 12 or the second conductive block 22 reaches a predetermined current value, the IC panel 2 is stopped from moving, thereby completing the pressing of the IC panel 2 and the display panel 1.
When the IC panel 2 is moved toward the display panel 1, the voltage U is continuously applied to the capacitor C formed by the pair of conductive blocks, and as the pressing time of the IC panel 2 and the display panel 1 increases, the deeper the IC panel 2 is pressed, the smaller the distance between the pair of conductive blocks forming the capacitor C is, the larger the capacitor C is, and when U is constant, the larger the current I flowing through the capacitor C is. When the current I reaches the set current value, the application of pressure to the IC panel 2 is stopped.
Further, the width of the first conductive piece 12 of the pair of conductive pieces is the same as the width of the second conductive piece 22; the conductive adhesive 3 is an anisotropic conductive adhesive 3 film.
In another embodiment, as shown in fig. 8, the display panel 1 may include a first bonding area 101 and a second bonding area 102, the first bonding area 101 includes a plurality of bonding terminals 1011, the second bonding area 102 includes a plurality of bonding terminals 1021, the display panel 1 includes two sets of first conductive bumps 12, each set of first conductive bumps 12 includes two columns of first conductive bumps 12; the first set of first conductive bumps 12 are disposed on two sides of the first bonding region 101 of the display panel 1, the second set of first conductive bumps 12 are disposed on two sides of the second bonding region 102 of the display panel 1, the first set of first conductive bumps 12 are used as alignment marks of the first bonding region 101 of the display panel 1, and the second set of first conductive bumps 12 are used as alignment marks of the second bonding region 102 of the display panel 1.
As shown in fig. 9, the IC panel 2 includes a driving IC panel 201 and a touch IC panel 202, the driving IC panel 201 is used for controlling the display panel 1 to light up, the touch IC panel 202 is used for processing the electrical signals output by the touch electrodes in the display panel 1, and the driving IC panel 201 and the touch IC panel 202 each include two rows of second conductive blocks 22, the two rows of second conductive blocks 22 on the driving IC panel 201 are distributed on two sides of a bonding area 2011 of the driving IC panel 201, and the two rows of second conductive blocks 22 on the touch IC panel 202 are distributed on two sides of a bonding area 2021 of the touch IC panel 202. The bonding area 2011 has a plurality of bonding terminals 20111, and the bonding area 2021 has a plurality of bonding terminals 20211.
While moving the IC panel 2 in the parallel direction of the display panel 1, two columns of the second conductive blocks 22 on the driving IC panel 201 are aligned with the first group of the first conductive blocks 12, and two columns of the second conductive blocks 22 on the touch IC panel 202 are aligned with the second group of the first conductive blocks 12. Fig. 10 shows a schematic diagram of the driving IC panel 201 and the touch IC panel 202 pressed on the display panel 1.
When the driving IC panel 201 and the touch IC panel 202 are laminated on the display panel 1, the driving IC panel 201 and the display panel 1 are laminated by the above-mentioned lamination method, and then the touch IC panel 202 and the display panel 1 are laminated.
The present invention also provides a direct pull display screen, comprising: a display panel 1 and an IC panel 2; at least two first conductive blocks 12 are arranged on the display panel 1, and at least two second conductive blocks 22 are arranged on the IC panel 2; the at least two first conductive bumps 12 are used as alignment marks for the bonding regions 11 of the display panel 1, and the at least two second conductive bumps 22 are used as alignment marks for the bonding regions 21 of the IC panel 2.
The at least two first conductive blocks 12 are further formed with insulating glue 4, the bonding area 11 of the display panel 1 is further formed with conductive glue 3, and the at least two first conductive blocks 12 and the at least two second conductive blocks 22 are aligned and pressed one by one respectively.
The display panel 1 comprises a first binding region and a second binding region, the display panel 1 comprises two groups of first conductive blocks 12, and each group of first conductive blocks 12 comprises two columns of first conductive blocks 12; the first group of first conductive bumps 12 are distributed on two sides of the first bonding region of the display panel 1, the second group of first conductive bumps 12 are distributed on two sides of the second bonding region of the display panel 1, the first group of first conductive bumps 12 are used as alignment marks of the first bonding region of the display panel 1, and the second group of first conductive bumps 12 are used as alignment marks of the second bonding region of the display panel 1.
The IC panel 2 includes a driving IC panel 201 and a touch IC panel 202, and the driving IC panel 201 and the touch IC panel 202 respectively include two rows of second conductive blocks 22, the two rows of second conductive blocks 22 on the driving IC panel 201 are distributed on two sides of a bonding area 2011 of the driving IC panel 201, and the two rows of second conductive blocks 22 on the touch IC panel 202 are distributed on two sides of a bonding area 2021 of the touch IC panel 202.
The two columns of the second conductive bumps 22 on the driving IC panel 201 are aligned with the first group of the first conductive bumps 12, and the two columns of the second conductive bumps 22 on the touch IC panel 202 are aligned with the second group of the first conductive bumps 12.
A gap is reserved between the conductive adhesive 3 and the insulating adhesive 4, and the conductive adhesive 3 is an anisotropic conductive adhesive 3 film.
In summary, the first conductive block 12 is added on the display panel 1, the second conductive block 22 is added on the IC panel 2, and when the IC panel 2 is pressed against the display panel 1, the IC panel 2 and the display panel 1 have a buffering effect by the supporting effect of the first conductive block 12 and the second conductive block 22, so as to prevent the IC panel 2 from being broken. Secondly, the invention can accurately judge whether the first conductive block 12 is aligned with the second conductive block 22 by detecting the size of the capacitance formed between the first conductive block 12 and the second conductive block 22, and further accurately judge whether the IC panel 2 is aligned with the display panel 1 or not, and an optical microscope is not needed for observation, so that the equipment cost can be saved. The invention can directly press the IC panel 2 in the binding area on the back of the display panel 1, is suitable for the straight pull type display screen with higher screen occupation ratio requirement, can solve the problem of a black frame caused by the traditional COP/COF packaging method, and can increase the effective display area of the display panel.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (9)
1. A pressing method of a straight pull type display screen is characterized by comprising the following steps:
forming at least two first conductive blocks on a display panel, and forming at least two second conductive blocks on an IC panel for aligning with the at least two first conductive blocks, wherein the at least two first conductive blocks are used as alignment marks of a bonding area of the display panel, and the at least two second conductive blocks are used as alignment marks of the bonding area of the IC panel;
coating conductive adhesive on the binding area of the display panel, and coating insulating adhesive on the at least two first conductive blocks;
fixing the IC panel above the display panel to enable the IC panel to be parallel to the display panel, moving the IC panel along the parallel direction of the display panel to enable the at least two second conductive blocks to correspond to the at least two first conductive blocks one to form at least two capacitors respectively, and moving the IC panel towards the display panel when the capacitance value of any one capacitor reaches the maximum value to enable the IC panel and the display panel to be in press fit;
when the IC panel is moved towards the display panel, voltage is applied between at least one pair of conductive blocks, and when the current flowing through the first conductive block or the second conductive block reaches a set current value, the IC panel is stopped to be moved, so that the IC panel and the display panel are pressed.
2. A pressing method for a czochralski display screen according to claim 1, wherein the IC panel is fixed above the display panel, specifically:
the IC panel is adsorbed by the sucking disc and fixed above the display panel, so that the edge of the IC panel is aligned with the alignment mark line outside the binding area of the display panel.
3. The pressing method of the vertical pulling type display screen according to claim 1, wherein a gap is left between the conductive adhesive and the insulating adhesive.
4. A pressing method of a czochralski display panel according to claim 1, wherein a pair of conductive blocks is formed by a first conductive block and a second conductive block for alignment when the IC panel is moved in a direction parallel to the display panel, a voltage is applied between at least a pair of conductive blocks, and a current flowing through the first conductive block or the second conductive block is detected, and when the current flowing through the first conductive block or the second conductive block is maximum, it is determined that a capacitance value of a capacitance formed between the first conductive block and the second conductive block is maximum.
5. A pressing method of a Czochralski display screen according to claim 4, wherein the width of the first conductive block of the pair of conductive blocks is the same as the width of the second conductive block;
the conductive adhesive is an anisotropic conductive adhesive film.
6. A pressing method for a czochralski display screen according to claim 1, wherein the display panel comprises a first bonding area and a second bonding area, the display panel comprises two sets of first conductive bumps, each set of first conductive bumps comprises two columns of first conductive bumps; the first group of first conductive blocks are distributed on two sides of a first binding area of the display panel, the second group of first conductive blocks are distributed on two sides of a second binding area of the display panel, the first group of first conductive blocks are used as alignment marks of the first binding area of the display panel, and the second group of first conductive blocks are used as alignment marks of the second binding area of the display panel;
the IC panel comprises a drive IC panel and a touch IC panel, the drive IC panel and the touch IC panel respectively comprise two rows of second conductive blocks, the two rows of second conductive blocks on the drive IC panel are distributed on two sides of a binding area of the drive IC panel, and the two rows of second conductive blocks on the touch IC panel are distributed on two sides of the binding area of the touch IC panel;
and when the IC panel is moved along the parallel direction of the display panel, aligning two columns of second conductive blocks on the drive IC panel with the first group of first conductive blocks, and aligning two columns of second conductive blocks on the touch IC panel with the second group of first conductive blocks.
7. A Czochralski display screen, manufactured by the method of any one of claims 1 to 6, comprising: a display panel and an IC panel; the display panel is provided with at least two first conductive blocks, and the IC panel is provided with at least two second conductive blocks; the at least two first conductive blocks are used as alignment marks of the binding area of the display panel, and the at least two second conductive blocks are used as alignment marks of the binding area of the IC panel;
and the at least two first conductive blocks are also provided with insulating glue, the binding area of the display panel is also provided with conductive glue, and the at least two first conductive blocks and the at least two second conductive blocks are respectively aligned and pressed one by one.
8. The direct pull display screen of claim 7, wherein the display panel comprises a first bonding area and a second bonding area, and the display panel comprises two sets of first conductive bumps, each set of first conductive bumps comprising two columns of first conductive bumps; the first group of first conductive blocks are distributed on two sides of a first binding area of the display panel, the second group of first conductive blocks are distributed on two sides of a second binding area of the display panel, the first group of first conductive blocks are used as alignment marks of the first binding area of the display panel, and the second group of first conductive blocks are used as alignment marks of the second binding area of the display panel;
the IC panel comprises a drive IC panel and a touch IC panel, the drive IC panel and the touch IC panel respectively comprise two rows of second conductive blocks, the two rows of second conductive blocks on the drive IC panel are distributed on two sides of a binding area of the drive IC panel, and the two rows of second conductive blocks on the touch IC panel are distributed on two sides of the binding area of the touch IC panel;
the two columns of second conductive blocks on the driving IC panel are aligned with the first group of first conductive blocks, and the two columns of second conductive blocks on the touch IC panel are aligned with the second group of first conductive blocks.
9. The screen of claim 7, wherein a gap is left between the conductive adhesive and the insulating adhesive, and the conductive adhesive is an anisotropic conductive adhesive film.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810851911.3A CN109118954B (en) | 2018-07-30 | 2018-07-30 | Straight pull type display screen and pressing method thereof |
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| CN201810851911.3A CN109118954B (en) | 2018-07-30 | 2018-07-30 | Straight pull type display screen and pressing method thereof |
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| CN109118954B true CN109118954B (en) | 2020-12-29 |
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| CN110246424B (en) * | 2019-06-18 | 2021-02-19 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof, spliced display screen and display device |
| CN110930879B (en) * | 2019-11-25 | 2020-11-10 | 武汉华星光电半导体显示技术有限公司 | Display device |
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| TWI545481B (en) * | 2014-10-17 | 2016-08-11 | 瑞鼎科技股份有限公司 | In-cell touch display system, in-cell touch panel and trace layout thereof |
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