CN110646961B - High-precision bending method for flexible screen - Google Patents
High-precision bending method for flexible screen Download PDFInfo
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- CN110646961B CN110646961B CN201910914163.3A CN201910914163A CN110646961B CN 110646961 B CN110646961 B CN 110646961B CN 201910914163 A CN201910914163 A CN 201910914163A CN 110646961 B CN110646961 B CN 110646961B
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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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Abstract
The invention relates to the technical field of flexible screen 3D laminating, and discloses a flexible screen high-precision bending method, which comprises the following steps: 1) placing the guide film on a film clamping structure, wherein the film clamping structure comprises two X-direction clamping pieces and two Y-direction clamping pieces, and the X-direction clamping pieces and the Y-direction clamping pieces respectively clamp four side edges of the guide film; 2) the middle part of the film clamping structure is provided with a film clamping profiling block, the Z-direction driving structure enables the film clamping profiling block to move upwards, the middle part of the film is guided to jack up, and the liquid crystal module is bent; 3) the middle part of the guide film is jacked up by the film clamping profiling block, the X-direction driving structure drives the two X-direction clamping pieces to move oppositely, and the Y-direction driving structure drives the two Y-direction clamping pieces to move oppositely; 4) the film clamping structure is provided with a monitoring structure, the monitoring structure monitors the bending state of the liquid crystal module and the motion states of the film clamping structure, the X-direction driving structure, the Y-direction driving structure and the Z-direction driving structure, and reflects monitoring data on a monitoring screen in real time; the bending precision of the liquid crystal module outline is improved.
Description
Technical Field
The invention relates to the technical field of flexible screen 3D laminating, in particular to a flexible screen high-precision bending method.
Background
With the development of networks and technologies towards increasingly broader bands, the mobile communications industry will move towards a true mobile information age. Mobile terminals such as mobile phones, notebooks, tablet computers and the like have strong processing capability, and are changing from a simple conversation tool to a comprehensive information processing platform.
The display screen is an important component of the mobile terminal, and has functions of displaying, touch controlling and the like. The display screen is including screen cover and LCD module, and the LCD module laminating is on screen cover, and of course, screen cover can be glass also can be other materials and make, specifically according to the requirement of display screen and decide.
At present, before the liquid crystal module is attached to the screen cover plate, the liquid crystal module needs to be pre-bent, the liquid crystal module cannot be directly clamped by equipment in the bending process in order to avoid damaging the surface of the liquid crystal module, the liquid crystal module is firstly attached to a guide film, and the liquid crystal module is bent by clamping the guide film.
Because the bending precision requirement is high in the process of bending the liquid crystal module, the current bending method cannot meet the precision requirement, and the problem of low profile precision of the bent liquid crystal module exists.
Disclosure of Invention
The invention aims to provide a high-precision bending method of a flexible screen, and aims to solve the problem that in the prior art, the contour precision of a bent liquid crystal module is low.
The invention is realized in this way, the flexible screen high-precision bending method comprises a film clamping structure, an X-direction driving structure, a Y-direction driving structure and a Z-direction driving structure, and comprises the following steps:
1) placing the guide film pasted with the liquid crystal module on a film clamping structure, wherein the film clamping structure comprises two X-direction clamping pieces and two Y-direction clamping pieces, and the two X-direction clamping pieces and the two Y-direction clamping pieces respectively clamp four side edges of the guide film;
2) the middle part of the film clamping structure is provided with a film clamping profiling block, the Z-direction driving structure drives the film clamping profiling block to move upwards to jack up the middle part of the guide film, so that the liquid crystal module is bent;
3) when the middle part of the guide film is jacked up by the film clamping profiling block, the X-direction driving structure drives the two X-direction clamping pieces to move oppositely, and the Y-direction driving structure drives the two Y-direction clamping pieces to move oppositely;
4) the film clamping structure is provided with a monitoring structure, the monitoring structure monitors the bending state of the liquid crystal module and the motion states of the film clamping structure, the X-direction driving structure, the Y-direction driving structure and the Z-direction driving structure, and reflects monitoring data on a monitoring screen in real time.
Further, in the step 1), after the two X-direction clamping members and the two Y-direction clamping members respectively clamp the four side edges of the guide film, the monitoring structure monitors the position of the guide film, and transmits monitoring data to the control element, and the control element controls the X-direction driving structure and the Y-direction driving structure to respectively drive the X-direction clamping member and the Y-direction clamping member, so as to adjust the guide film to a preset position, thereby positioning the guide film.
Further, in the step 1), the X-direction clamping member includes an X-up clamp plate and an X-down clamp plate, and the guide film is placed between a lower end surface of the X-up clamp plate and an upper end surface of the X-down clamp plate, and the X-up clamp plate and the X-down clamp plate clamp both lateral sides of the guide film.
Furthermore, the lower end face of the X-direction upper clamping plate and the upper end face of the X-direction lower clamping plate are respectively provided with an X-direction soft film, and the two X-direction soft films clamp the guide film.
Further, the Y-direction clamping member includes a Y-direction upper clamping plate and a Y-direction lower clamping plate, and the guide film is placed between a lower end surface of the Y-direction upper clamping plate and an upper end surface of the Y-direction lower clamping plate, and the two longitudinal sides of the guide film are clamped by the Y-direction upper clamping plate and the Y-direction lower clamping plate.
Furthermore, the lower end face of the Y-direction upper clamping plate and the upper end face of the Y-direction lower clamping plate are respectively provided with a Y-direction soft film, and two Y-direction soft films clamp the guide film.
Further, the X-direction driving structure comprises an X-direction motor and an X-direction screw rod, and the X-direction screw rod is respectively connected with the X-direction motor and the X-direction clamping piece; when the middle part of the guide film is jacked up by the film clamping profiling block, the X-direction motor drives the X-direction screw rod to enable the two X-direction clamping pieces to move oppositely.
Further, the Y-direction driving structure comprises a Y-direction motor and a Y-direction screw rod, and the Y-direction screw rod is respectively connected with the Y-direction motor and the Y-direction clamping piece; when the middle part of the guide film is jacked up by the film clamping profiling block, the Y-direction motor drives the Y-direction screw rod to enable the two Y-direction clamping pieces to move oppositely.
Further, the Z-direction driving structure comprises a Z-direction motor and a Z-direction screw rod, and the Z-direction screw rod is respectively connected with the Z-direction motor and the film clamping profiling block; and the Z-direction motor drives the Z-direction screw rod to enable the film clamping profiling block to move upwards, so that the middle part of the guide film is jacked up, and the liquid crystal module is bent.
Further, the monitoring structure comprises an X-direction camera and a Y-direction camera, and the X-direction camera and the Y-direction camera shoot the liquid crystal module from the X direction and the Y direction respectively.
Compared with the prior art, the high-precision bending method for the flexible screen has the following technical effects:
1) in the process of bending the liquid crystal module by driving the film clamping profiling block through the Z-direction driving structure, the X-direction driving structure drives the two X-direction clamping pieces to move oppositely, the Y-direction driving structure drives the two Y-direction clamping pieces to move oppositely, and X, Y, Z directions are synchronously linked, so that the bending precision of the outline of the liquid crystal module is improved;
2) the guide film is clamped by the film clamping structure, so that the guide film is prevented from slipping in the bending process, and the bending precision is low and even the bending fails;
3) the bending state of the liquid crystal module and the motion state of each part are reflected on the monitoring screen through the monitoring structure, so that an operator can know the working states of the liquid crystal module and equipment in real time, and production accidents in the bending process are avoided.
Drawings
FIG. 1 is a flow chart of a high precision bending method for a flexible screen provided by the present invention;
FIG. 2 is a perspective view of the overall structure provided by the present invention;
FIG. 3 is a right side view of the overall structure provided by the present invention;
FIG. 4 is a schematic perspective view of a film sandwich structure provided by the present invention;
FIG. 5 is an exploded view of the X-clamp provided by the present invention;
FIG. 6 is a schematic perspective view of an X-direction drive configuration provided by the present invention;
fig. 7 is a circuit connection diagram provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-7, preferred embodiments of the present invention are provided.
The high-precision bending method for the flexible screen provided by the embodiment can be applied to pre-bending of the guide film, and certainly, the high-precision bending method can also be applied to bending processes of other products, and is not limited to the application in the embodiment.
The flexible screen high-precision bending method comprises a film clamping structure, an X-direction driving structure 11, a Y-direction driving structure 12 and a Z-direction driving structure 13, and comprises the following steps:
1) placing the guide film pasted with the liquid crystal module on a film clamping structure, wherein the film clamping structure comprises two X-direction clamping pieces 14 and two Y-direction clamping pieces 15, and the two X-direction clamping pieces 14 and the two Y-direction clamping pieces 15 respectively clamp four side edges of the guide film;
2) the middle part of the film clamping structure is provided with a film clamping profiling block 16, and the Z-direction driving structure 13 drives the film clamping profiling block 16 to move upwards to jack up the middle part of the guide film so as to enable the liquid crystal module to be bent;
3) when the middle part of the guide film is jacked up by the film clamping profiling block 16, the X-direction driving structure 11 drives the two X-direction clamping pieces 14 to move oppositely, and the Y-direction driving structure 12 drives the two Y-direction clamping pieces 15 to move oppositely;
4) the film clamping structure is provided with a monitoring structure, the monitoring structure monitors the bending state of the liquid crystal module and the motion states of the film clamping structure, the X-direction driving structure 11, the Y-direction driving structure 12 and the Z-direction driving structure 13, and reflects monitoring data on a monitoring screen in real time.
The high-precision bending method for the flexible screen has the following technical effects:
1) in the process of bending the liquid crystal module by driving the film clamping profiling block 16 through the Z-direction driving structure 13, the X-direction driving structure 11 drives the two X-direction clamping pieces 14 to move oppositely, the Y-direction driving structure 12 drives the two Y-direction clamping pieces 15 to move oppositely, and X, Y, Z are synchronously linked in three directions, so that the bending precision of the liquid crystal module outline is improved;
2) the guide film is clamped by the film clamping structure, so that the guide film is prevented from slipping in the bending process, and the bending precision is low and even the bending fails;
3) the bending state of the liquid crystal module and the motion state of each part are reflected on the monitoring screen through the monitoring structure, so that an operator can know the working states of the liquid crystal module and equipment in real time, and production accidents in the bending process are avoided.
In this embodiment, in step 1), after the two X-direction clamping members 14 and the two Y-direction clamping members 15 respectively clamp the four sides of the guide film, the monitoring structure monitors the position of the guide film, and transmits monitoring data to the control element, and the control element controls the X-direction driving structure 11 and the Y-direction driving structure 12 to respectively drive the X-direction clamping members 14 and the Y-direction clamping members 15, so as to adjust the guide film to a preset position, thereby positioning the guide film.
Through the positioning of the guide film, the guide film is positioned at a preset position before being bent, so that when the guide film is jacked up by the film clamping profiling block 16, the bending state of the liquid crystal module meets the design requirement, and the bending precision of the outline of the liquid crystal module is further ensured.
The monitoring structure transmits monitoring data to the control piece, the control piece controls the X-direction driving structure 11 and the Y-direction driving structure 12, automatic control is achieved in the whole process, the influence of manual operation on the bending process is reduced, and the bending precision of the liquid crystal module is guaranteed.
In step 1), the X-direction clamping member 14 includes an X-up clamp plate 17 and an X-down clamp plate 18, and the guide film is placed between the lower end surface of the X-up clamp plate 17 and the upper end surface of the X-down clamp plate 18, and the X-up clamp plate 17 and the X-down clamp plate 18 clamp both lateral sides of the guide film.
The X-direction lower clamping plate 18 is connected with the X-direction clamping cylinder, when the guide film is placed on the X-direction clamping piece 14, the X-direction clamping cylinder drives the X-direction lower clamping plate 18 to move downwards to be far away from the X-direction upper clamping plate 17, the transverse side edge of the guide film is placed between the lower end face of the X-direction upper clamping plate 17 and the upper end face of the X-direction lower clamping plate 18, and the X-direction clamping cylinder drives the X-direction lower clamping plate 18 to move upwards until the transverse side edge of the guide film is clamped.
X has respectively to flexible film 19 to the lower terminal surface of splint 17 and the up end of splint 18 down to X, and two X press from both sides tight guide film to flexible film 19, and X has the ripple to flexible film 19's surface, presss from both sides tight guide film back, has great frictional force with the surface of guide film, can prevent effectively that the horizontal side of guide film from taking place to slide at the in-process of bending, has improved the precision of bending of liquid crystal module profile.
The Y-direction clamping member 15 includes a Y-up clamp plate and a Y-down clamp plate, and places the guide film between the lower end surface of the Y-up clamp plate and the upper end surface of the Y-down clamp plate, which clamp both longitudinal sides of the guide film.
Y is connected to die clamping cylinder with Y down splint, and when the guide membrane was placed on Y to clamping piece 15, Y moved down to die clamping cylinder drive Y splint and kept away from Y splint that make progress, and the vertical side of film will be guided is arranged in Y between the up lower terminal surface of splint and the up end of Y splint down, and Y moves up to die clamping cylinder drive Y splint down until pressing from both sides the vertical side of guide membrane.
The lower end face of the Y-shaped upper clamping plate and the upper end face of the Y-shaped lower clamping plate are respectively provided with a Y-shaped soft film, and two Y-shaped soft films clamp the guide film.
Y makes progress the lower terminal surface of splint and Y and has Y to the flexible film respectively to the up end of splint down, and two Y press from both sides tight guide film to the flexible film, and Y has the ripple to the surface of flexible film, presss from both sides tight guide film back, has great frictional force with the surface of guide film, can prevent effectively that the vertical side of guide film from taking place to slide at the in-process of bending, has improved the precision of bending of liquid crystal module profile.
The X-direction driving structure 11 comprises an X-direction motor 20 and an X-direction screw rod 21, and the X-direction screw rod 21 is respectively connected with the X-direction motor 20 and the X-direction clamping piece 14; when the middle part of the guide film is jacked up by the clamping film profile block 16, the X-direction motor 20 drives the X-direction screw rod 21, so that the two X-direction clamping pieces 14 move oppositely.
When the middle part of the guide film is jacked up by the film clamping profiling block 16, the bending state of the liquid crystal module is monitored through the monitoring structure, monitoring data are transmitted to the control piece, the control piece controls the X-direction motor 20 to drive the X-direction screw rod 21, two X-direction clamping pieces 14 move oppositely in a matching mode with the movement of the film clamping profiling block 16, the phenomenon that the transverse side edge of the guide film slides due to tensile force is avoided, and the bending precision of the outline of the liquid crystal module is improved.
The Y-direction driving structure 12 comprises a Y-direction motor and a Y-direction screw rod, and the Y-direction screw rod is respectively connected with the Y-direction motor and the Y-direction clamping piece 15; when the middle part of the guide film is jacked up by the film clamping contour block 16, the Y-direction motor drives the Y-direction screw rod to enable the two Y-direction clamping pieces 15 to move oppositely.
When the middle part of the guide film is jacked up by the film clamping profiling block 16, the bending state of the liquid crystal module is monitored through the monitoring structure, monitoring data are transmitted to the control piece, the control piece controls the Y direction motor to drive the Y direction lead screw, two Y directions clamping pieces 15 are enabled to move oppositely in cooperation with the movement of the film clamping profiling block 16, the longitudinal side edge of the guide film is prevented from sliding due to tensile force, and the bending precision of the outline of the liquid crystal module is improved.
The Z-direction driving structure 13 comprises a Z-direction motor 22 and a Z-direction screw rod 23, and the Z-direction screw rod 23 is respectively connected with the Z-direction motor 22 and the film clamping profiling block 16; and the Z-direction motor 22 drives the Z-direction screw rod 23 to enable the film clamping profiling block 16 to move upwards to jack the middle part of the guide film, so that the liquid crystal module is bent.
The X-direction motor 20, the Y-direction motor and the Z-direction motor 22 are all servo motors, and accurate control of movement amount of parts is achieved through driving of the servo motors and the lead screws, so that bending accuracy is further improved.
The monitoring structure includes an X-direction camera 24 and a Y-direction camera 25, and the X-direction camera 24 and the Y-direction camera 25 respectively photograph the liquid crystal module from the X direction and the Y direction.
The X-direction camera 24 and the Y-direction camera 25 are used for shooting from the X direction and the Y direction synchronously, so that the liquid crystal module is monitored in multiple directions, the bending state of the liquid crystal module is monitored in real time, and reference data are provided for automatic control of a control piece.
The control element is respectively electrically connected with the X-direction camera 24, the Y-direction camera 25, the X-direction motor 20, the Y-direction motor, the Z-direction motor 22, the X-direction clamping cylinder, the Y-direction clamping cylinder and the monitoring screen through cables, so that automatic control of the bending process is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The high-precision flexible screen bending method is characterized by comprising a film clamping structure, an X-direction driving structure, a Y-direction driving structure and a Z-direction driving structure, and comprises the following steps:
1) placing the guide film pasted with the liquid crystal module on a film clamping structure, wherein the film clamping structure comprises two X-direction clamping pieces and two Y-direction clamping pieces, and the two X-direction clamping pieces and the two Y-direction clamping pieces respectively clamp four side edges of the guide film;
2) the middle part of the film clamping structure is provided with a film clamping profiling block, the Z-direction driving structure drives the film clamping profiling block to move upwards to jack up the middle part of the guide film, so that the liquid crystal module is bent; the Z-direction driving structure comprises a Z-direction motor and a Z-direction screw rod, and the Z-direction screw rod is respectively connected with the Z-direction motor and the film clamping profiling block; the Z-direction motor drives the Z-direction screw rod to enable the film clamping profiling block to move upwards, the middle part of the guide film is jacked up, and the liquid crystal module is bent;
3) when the middle part of the guide film is jacked up by the film clamping profiling block, the X-direction driving structure drives the two X-direction clamping pieces to move oppositely, the Y-direction driving structure drives the two Y-direction clamping pieces to move oppositely, the X-direction driving structure comprises an X-direction motor and an X-direction lead screw, and the X-direction lead screw is respectively connected with the X-direction motor and the X-direction clamping pieces; when the middle part of the guide film is jacked up by the film clamping profiling block, the X-direction motor drives the X-direction screw rod to enable the two X-direction clamping pieces to move oppositely; the Y-direction driving structure comprises a Y-direction motor and a Y-direction screw rod, and the Y-direction screw rod is respectively connected with the Y-direction motor and the Y-direction clamping piece; when the middle part of the guide film is jacked up by the film clamping profiling block, the Y-direction motor drives the Y-direction screw rod to enable the two Y-direction clamping pieces to move oppositely;
4) the film clamping structure is provided with a monitoring structure, the monitoring structure monitors the bending state of the liquid crystal module and the motion states of the film clamping structure, the X-direction driving structure, the Y-direction driving structure and the Z-direction driving structure, and reflects monitoring data on a monitoring screen in real time.
2. The flexible screen high-precision bending method according to claim 1, wherein in the step 1), after the two X-direction clamping members and the two Y-direction clamping members respectively clamp four sides of the guiding film, the monitoring structure monitors the position of the guiding film and transmits monitoring data to the control part, and the control part controls the X-direction driving structure and the Y-direction driving structure to respectively drive the X-direction clamping members and the Y-direction clamping members to adjust the guiding film to a preset position, so as to realize the positioning of the guiding film.
3. The flexible screen high precision bending method according to claim 2, wherein in the step 1), the X-direction clamping member includes an X-direction clamping plate and an X-direction clamping plate, and a guide film is placed between a lower end surface of the X-direction clamping plate and an upper end surface of the X-direction clamping plate, and the X-direction clamping plate clamp both lateral sides of the guide film.
4. The high-precision bending method for the flexible screen according to claim 3, wherein the lower end face of the X-direction upper clamping plate and the upper end face of the X-direction lower clamping plate are respectively provided with an X-direction soft film, and two X-direction soft films clamp the guide films.
5. The flexible screen high precision bending method according to claim 4, wherein the Y-direction clamping member includes a Y-up clamp plate and a Y-down clamp plate, and a guide film is placed between a lower end face of the Y-up clamp plate and an upper end face of the Y-down clamp plate, and the Y-up clamp plate and the Y-down clamp plate clamp both longitudinal side edges of the guide film.
6. The high-precision bending method for the flexible screen according to claim 5, wherein the lower end face of the Y-direction upper clamping plate and the upper end face of the Y-direction lower clamping plate are respectively provided with a Y-direction soft film, and two Y-direction soft film clamping guide films are arranged on the lower end face of the Y-direction upper clamping plate and the upper end face of the Y-direction lower clamping plate.
7. The flexible screen high-precision bending method according to any one of claims 1 to 6, wherein the monitoring structure comprises an X-direction camera and a Y-direction camera, and the X-direction camera and the Y-direction camera respectively shoot the liquid crystal module from an X direction and a Y direction.
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| CN111276047A (en) * | 2020-01-15 | 2020-06-12 | 厦门微亚智能科技有限公司 | Trajectory planning method for bending of OLED flexible screen |
| CN111415585B (en) * | 2020-03-30 | 2021-01-08 | 深圳市腾盛精密装备股份有限公司 | Flexible screen bending and attaching machine |
| CN111785171B (en) * | 2020-07-21 | 2022-03-29 | 昆山国显光电有限公司 | Laminating device |
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