CN109272875B - Bending jig and bending method for display panel - Google Patents
Bending jig and bending method for display panel Download PDFInfo
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- CN109272875B CN109272875B CN201811409875.1A CN201811409875A CN109272875B CN 109272875 B CN109272875 B CN 109272875B CN 201811409875 A CN201811409875 A CN 201811409875A CN 109272875 B CN109272875 B CN 109272875B
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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
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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
- G09F9/33—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 being semiconductor devices, e.g. diodes
Abstract
The invention discloses a bending jig and a bending method for a display panel. Should buckle the tool and include: the first carrying platform comprises a straight part and an arc bending part which are connected with each other, and the straight part of the first carrying platform fixes the straight part of the display panel; the sliding assembly is sleeved on the first carrying platform and the display panel fixed on the first carrying platform in an annular mode, and the sliding assembly can slide from one end, connected with the straight portion, of the arc bending portion of the first carrying platform to the other end of the sliding assembly along the arc bending portion of the first carrying platform, so that the bending portion of the display panel is attached to the arc bending portion of the first carrying platform to be bent. The bending jig and the bending method for the display panel provided by the invention enable the bending part of the display panel to be bent at a fixed arc radian when being bent, and solve the problems that the conventional bending method is easy to cause dead-fold phenomenon, dead-fold points are generated, and even the wires on the bending part of the display screen are easy to break.
Description
Technical Field
The application relates to the technical field of display, in particular to a bending jig and a bending method for a display panel.
Background
An Organic Light Emitting diode Display (OLED) has many advantages of self-luminescence, low driving voltage, high luminous efficiency, short response time, high definition and contrast, a viewing angle of nearly 180 °, a wide temperature range, flexible Display, large-area full color Display, and the like, and is considered as a Display device with the most potential for development.
With the development of science and technology, flexible display devices show wider and wider application prospects, and as the flexible display technology which is the best seen at present, the investment and market occupation rate of the flexible OLED display devices are continuously increased in all aspects. The flexible display panel needs a flexible substrate to be bent, so that part of the screen body is bent to the back of the display screen, the R angle of the bent part is not fixed when the bent part is bent by a conventional bending method, even a dead-fold phenomenon is easy to occur, a dead-fold point is generated, and the problems of wire breakage and the like on the bent part are easy to cause.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bending jig and a bending method for a display panel, so as to ensure that a flexible display screen body is bent at a fixed arc radian and prevent a dead-fold phenomenon during bending.
In order to achieve the technical purpose, the embodiment of the invention provides the following technical scheme:
a bending jig for a display panel comprises:
the first carrying platform comprises a straight part and an arc bending part which are connected with each other, and the straight part of the first carrying platform fixes the straight part of the display panel;
the sliding assembly is sleeved on the first carrying platform and the display panel fixed on the first carrying platform in an annular mode, and the sliding assembly can slide from one end, connected with the straight portion, of the arc bending portion of the first carrying platform to the other end of the sliding assembly along the arc bending portion of the first carrying platform, so that the bending portion of the display panel is attached to the arc bending portion of the first carrying platform to be bent.
Optionally, the flat portion of the first stage is provided with a vacuum suction hole, and the flat portion of the first stage fixes the flat portion of the display panel by suction through the vacuum suction hole.
Optionally, the first stage includes a first surface and a second surface that are away from each other, the arc bending portion of the first stage is bent toward one side of the first surface, the second surface of the straight portion of the first stage fixes the straight portion of the display panel, and the sliding assembly can slide along the arc bending portion of the first stage, so that the bending portion of the display panel is attached to the second surface of the arc bending portion of the first stage to be bent.
Optionally, the first stage includes a first surface and a second surface that are away from each other, the arc bending portion of the first stage is bent toward one side of the first surface, the first surface of the straight portion of the first stage fixes the straight portion of the display panel, and the sliding assembly can slide along the arc bending portion of the first stage, so that the bending portion of the display panel is attached to the first surface of the arc bending portion of the first stage to bend.
Optionally, the display panel further comprises a second stage, the second stage comprises a straight portion, one end of the straight portion is an arc end, the first stage and the second stage can move relatively, the arc end of the second stage can be embedded in the arc bending portion of the first stage, and the straight portion of the first stage and the second stage clamp the straight portion of the display panel;
and a step is arranged at the joint of the arc end and the straight part of the second carrying platform on the surface of one side of the second carrying platform facing the first carrying platform, and the sliding assembly penetrates through the step ring sleeve to be sleeved on the first carrying platform and the display panel fixed on the first carrying platform.
Optionally, a radius of curvature of the arc end of the second stage is smaller than a radius of curvature of the arc bending portion of the first stage.
Optionally, a vacuum suction hole is provided on a surface of the second stage facing the straight portion and the arc bending portion of the first stage, and the display panel can be sucked on the second stage through the vacuum suction hole.
Optionally, the sliding assembly comprises a first sliding bar, a second sliding bar and a spring screw, and the first sliding bar and the second sliding bar can be connected through the spring screw.
Optionally, a sliding guide groove is formed in a side surface of the arc bending portion of the first stage, the side surface is perpendicular to and intersects with the surface of the arc bending portion facing the display panel, the second sliding bar includes a parallel portion and connecting portions located at two ends of the parallel portion, a sliding projection is arranged on the connecting portions, the sliding projection can be embedded in the sliding guide groove, and can slide from one end of the sliding guide groove, connected with the straight portion, of the first stage to the other end of the sliding guide groove.
Optionally, a sliding guide rail groove is arranged on a side surface of the arc bending part of the first stage, and the side surface is perpendicularly intersected with the surface of the arc bending part facing the display panel; the sliding assembly comprises a U-shaped sliding strip, the U-shaped sliding strip comprises a parallel portion and connecting portions located at two ends of the parallel portion, sliding convex blocks are arranged on the connecting portions, the sliding convex blocks can be embedded in the sliding guide rail grooves, and the sliding guide rail grooves can be formed by connecting arc bending portions and straight portions of the first carrying platform to one end of the sliding guide rail grooves and sliding to the other end of the sliding guide rail grooves.
A bending method of a display panel adopts any one of the bending jigs, and comprises the following steps:
fixing the display panel on the flat part of the first carrying platform;
sleeving a sliding assembly on the first carrying platform in a ring manner and fixing a display panel on the first carrying platform;
and driving the sliding assembly to slide from one end of the sliding assembly, which is connected with the straight part, to the other end of the sliding assembly along the arc bending part of the first carrying platform, so as to drive the bending part of the display panel to be attached to the bending part of the first carrying platform for bending.
Optionally, the fixing the display panel to the flat portion of the first stage includes:
attaching the display panel to the flat part of the first carrying platform;
and vacuumizing the vacuum adsorption hole on the straight part of the first carrying platform, and adsorbing and fixing the straight part of the display panel by the straight part of the first carrying platform through the vacuum adsorption hole.
Optionally, before the fixing the display panel to the flat portion of the first stage, the method further includes:
attaching the display panel to the flat part of the second carrying platform;
vacuumizing a vacuum adsorption hole arranged on the surface of the second carrying platform facing the first carrying platform straight part and the arc bending part, and adsorbing and fixing the display panel by the second carrying platform through the vacuum adsorption hole;
moving a first carrying table or a second carrying table to enable an arc end of the second carrying table to be embedded in an arc bending part of the first carrying table, wherein the straight part of the first carrying table and the straight part of the second carrying table clamp the straight part of the display panel;
the display panel is fixed on the straight part of the first carrying platform; looping a sliding assembly around the first carrier and a display panel fixed on the first carrier, comprising:
releasing the vacuum in the vacuum adsorption holes arranged on the surface of the arc bending part of the second carrying platform facing the first carrying platform;
introducing vacuum into a vacuum adsorption hole on the straight part of the first carrying platform, and adsorbing and fixing the straight part of the display panel by the straight part of the first carrying platform through the vacuum adsorption hole;
and the sliding assembly penetrates through the second carrying platform and faces one side surface of the first carrying platform, and a step is arranged at the joint of the arc end and the straight part in the straight part of the second carrying platform and is sleeved on the first carrying platform and the display panel fixed on the first carrying platform.
Optionally, the step provided at a connection of the arc end and the straight portion of the flat portion of the second stage on a side surface of the sliding assembly that passes through the second stage and faces the first stage, is looped around the first stage and the display panel fixed on the first stage, and includes:
the first sliding strip of the sliding assembly penetrates through the second carrying table and faces the surface of one side of the first carrying table, and a step is arranged at the connecting position of the circular arc end and the straight part in the straight part of the second carrying table;
and connecting the second sliding bar and the first sliding bar of the sliding assembly by adopting a spring screw.
It can be seen from the above technical solutions that the embodiments of the present invention provide a bending jig and a bending method for a display panel, wherein, by arranging the first carrying platform and the sliding component, the sliding component is sleeved on the first carrying platform and the display panel, and the sliding component slides from one end of the first carrying platform arc bending part connected with the straight part to the other end along the arc bending part of the first carrying platform, the bending jig and the bending method for the display panel provided by the embodiment of the invention have the advantages that the bending jig is simple in structure, low in cost, fixed in bending effect and controllable in bending radian, and dead bending is easily generated by a conventional bending method, dead bending points are generated, and even wires on the bending part of the display panel are easily broken.
Further, set up the vacuum adsorption hole on the straight portion of first microscope carrier, can adsorb fixedly fast and release fast to the straight portion of display panel to reduce the fixed time with the release of display panel.
Further, the arc bending part of the first carrying platform bends towards the first surface, the first carrying platform is divided into the first surface and the second surface, the flat part of the display panel is fixed on the second surface of the flat part of the first carrying platform, then the sliding component slides along the arc bending part of the first carrying platform, the bending part of the display panel is attached to the second surface of the arc bending part of the first carrying platform, the bending part of the display panel can be guaranteed to bend along the outer surface of the arc bending part of the first carrying platform, bending of preset radian is achieved, and dead fold phenomenon and the like are avoided.
Optionally, the bending portion of the display panel can be attached to the first surface of the first stage arc bending portion, so that the bending portion of the display panel is bent along the inner surface of the first stage arc bending portion, bending with a preset radian is achieved, and the phenomenon of dead folding is avoided.
Furthermore, when the bending part of the display panel is bent along the inner surface of the arc bending part of the first carrying platform, the bending part of the display panel needs to be pre-bent, and in order to prevent the damage of the bending part of the display panel during pre-bending, the second carrying platform can be arranged, and one end of the straight part of the second carrying platform is an arc end which is movably embedded into the arc bending part of the first carrying platform, so that the bending part of the display panel is pre-bent along the arc end of the second carrying platform, and the phenomena of dead folding and the like during pre-bending are avoided.
Further, the curvature radius of the arc end of the second carrying platform is smaller than that of the arc bending part of the first carrying platform, so that the arc end of the second carrying platform can be embedded in the arc bending part of the first carrying platform.
Furthermore, the sliding assembly can adopt spring screws to elastically connect the two sliding strips, so that the tightness degree of the sliding assembly can be controlled when the loop is sleeved on the display panel and the first carrying platform, and the bending part of the display panel is bent to be tightly attached to the inner surface of the arc bending part of the first carrying platform.
Furthermore, a sliding guide rail groove can be arranged on the side surface of the first carrier arc bending part to limit the sliding track of the sliding assembly, so that the tightness degree of the sliding assembly to the display panel and the first carrier sliding sleeve in the sliding process is ensured, and the display panel is bent to be close to the inner surface of the first carrier arc bending part.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a bending jig of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another bending jig for a display panel according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of another bending jig for a display panel according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a slide assembly according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another slide assembly provided in accordance with an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a bending jig of a display panel including the sliding assembly shown in fig. 5 according to an embodiment of the present invention;
FIG. 7 is a flowchart illustrating a method for bending a display panel according to an embodiment of the present invention;
fig. 8 is a flowchart of a bending method of a display panel according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background art, in the flexible display panel in the prior art, in order to reduce the width of the non-display area of the flexible display panel and implement a display panel with a narrow bezel, the display panel is generally divided into a straight portion and a bent portion, and the bent portion is bonded with the flexible circuit board and bent to the back of the flexible display panel, but the conventional bending method generally generates a dead fold phenomenon of the bent portion, generates a dead fold point, and even easily causes a problem that the display function of the display panel is affected by the breakage of the traces on the bent portion, and the inventor finds that the problem is caused because the conventional bending method generally adopts a manual bending manner to bend the bent portion, and then connects the flexible circuit board connected with the bent portion to the control main board on the back of the display panel, obviously, the bending radian of the bent portion is not fixed in the manual bending manner, the bending radian can not be strictly controlled in the bending process, so that the problems of bending part, dead fold and the like can occur.
Based on the above reasons, the invention provides a bending jig and a bending method for a display panel.
Fig. 1 is a schematic structural diagram of a bending jig for a display panel according to an embodiment of the present invention, and referring to fig. 1, the bending jig includes: a first stage 11, the first stage 11 including a straight portion 111 and an arc bending portion 112 connected to each other, the straight portion 111 of the first stage 11 fixing the straight portion 101 of the display panel 10; the sliding assembly 13, the sliding assembly 13 surrounds the first stage 11 and the display panel 10 fixed on the first stage 11, the sliding assembly 13 can slide from one end of the connection between the arc bending portion 112 of the first stage 11 and the straight portion 111 to the other end along the arc bending portion 112 of the first stage 11, so that the bending portion 102 of the display panel 10 is jointed with the arc bending portion 112 of the first stage 11 to be bent.
The straight portion 111 and the arc bending portion 112 of the first stage 11 are only used for representing the straight structural portion and the arc bending structural portion of the first stage 11, and the straight portion 111 is connected to the arc bending portion 112. The straight portions 101 and the bent portions 102 of the display panel 10 are also used to indicate only the morphological and structural composition of different portions of the display panel 10, and are essentially the same display panel. The first carrier 11 may be made of bakelite or metal, and is preferably made of a metal material such as copper.
Specifically, in the bending method for bending the display panel by using the bending jig, firstly, the display panel 10 needs to be fixed to the straight portion 111 of the first carrier 11; then, the sliding assembly 13 is sleeved on the first carrying platform 11 and the display panel 10 fixed on the first carrying platform 11; finally, the sliding assembly 13 is driven to slide from the end of the first stage 11 connected to the straight portion 111 along the arc bending portion 112 to the other end of the first stage 11, so as to drive the bending portion of the display panel to be attached to the bending portion of the first stage. The sliding component 13 in the bending fixture can be used for sleeving the display panel 10 and the first stage 11 after the display panel 10 is placed and fixed on the first stage 11, the sliding component 13 slides along the first stage 11 according to the direction of the sliding arrow shown in fig. 1, and during the sliding process, the sliding component 13 can bend the display panel 10 to be close to the arc bending part 12 of the first stage 11 due to the tight sleeve between the display panel 10 and the first stage 11.
According to the invention, the first carrying platform and the display panel are sleeved by the sliding assembly ring, and the sliding assembly slides from one end of the first carrying platform arc bending part connected with the straight part to the other end along the arc bending part of the first carrying platform so that the bending part of the display panel is attached to the arc bending part of the first carrying platform to be bent, so that the bending of the bending part of the display panel is carried out at a fixed arc radian, and the problems that the conventional bending method is easy to cause dead bending, dead bending points are generated and even the routing on the bending part of the display screen is easy to break are solved.
It should be noted that, after the display panel is bent by the bending jig, the display panel needs to be taken down from the bending jig, and at this time, the bending radian of the display panel is maintained according to the toughness of the flexible screen body itself, and in order to prevent the bending radian of the taken-down display panel from changing, the screen body bent to the back of the display panel can be fixed with the front screen body by means of organic glue blocks and the like, which is not limited herein.
The flat portion 111 of the first stage 11 fixes the bent portion 102 of the display panel 10, and for example, a release film may be disposed on the first stage 11 for adhering and fixing the flat portion 101 of the display panel 10, so that the display panel 10 is separated from the release film after the bending of the display panel 10 is completed. In addition, as shown in fig. 1, a vacuum suction hole 113 may be provided in the flat portion 111 of the first stage 11, and the flat portion 111 of the first stage 11 may suction and fix the flat portion 101 of the display panel 10 through the vacuum suction hole 113. Here, the number of the vacuum suction holes 113 provided in the flat portion 111 of the first stage 11 is not limited herein, and the shape of the vacuum suction holes 113 is not limited to a plurality of single holes, but the first stage 11 may also be made of a material having a through-hole fine pore structure inside itself, such as porous ceramic, and the display panel 10 may be uniformly sucked by evacuating the inner fine pores. The vacuum adsorption holes 113 are used for vacuumizing to adsorb and fix the display panel 10, so that the display panel 10 can be adsorbed, fixed and released at any time, and the bending jig is convenient for batch bending of the display panel.
As shown in fig. 1, the first stage 11 includes a first surface 1101 and a second surface 1102 that are away from each other, the arc bending portion 111 in the first stage 11 bends toward one side of the first surface 1101, the first surface 1101 of the straight portion 111 of the first stage 11 fixes the straight portion 101 of the display panel 10, and the sliding assembly 13 can slide along the arc bending portion 112 of the first stage 11, so that the bending portion 102 of the display panel 10 is bent to fit the first surface 1101 of the arc bending portion 112 of the first stage 11.
In the method of placing and fixing the display panel 10 on the first surface side of the first stage 11, and then sliding the sliding assembly 13 to bend the bending portion 102 of the display panel 10 to fit the first surface 1101 of the arc bending portion 112, in order to reduce the pre-bending step, the embodiment of the present invention further provides a bending jig for the display panel 10 when the display panel 10 is placed on the first surface side of the first stage 11, fig. 2 is a schematic structural diagram of another bending jig for the display panel provided by the embodiment of the present invention, referring to fig. 2, in the bending jig, the first stage 11 includes a first surface 1101 and a second surface 1102 which are mutually separated, the arc bending portion 111 in the first stage 11 is bent toward one side of the first surface 1101, and the second surface 1102 of the straight portion 111 of the first stage 11 fixes the straight portion 101 of the display panel 10, the sliding assembly 13 can slide along the arc bending part 112 of the first stage 11, so that the bending part 102 of the display panel 10 is attached to the second surface 1102 of the arc bending part 112 of the first stage 11.
With continued reference to fig. 1, in order to fix the display panel 10 on the first surface 1101 of the first stage 11, the bending portion 102 of the display panel 10 must be pre-bent, so as to place the bending part 102 of the display panel 10 into the arc bending part 1101 of the first stage 11, in order to avoid dead folding points occurring when the folding portion 102 of the display panel 10 is pre-folded, the embodiment of the invention further provides a folding jig for a display panel, fig. 3 is a schematic structural diagram of another bending jig for a display panel according to an embodiment of the present invention, and referring to fig. 3, the bending jig further comprises a second stage 12, the second stage 12 comprises a straight portion 121, one end of the straight portion 121 is an arc end 122, the first stage 11 and the second stage 12 can move relatively, the arc end 122 of the second stage 12 can be embedded in the arc bending portion 112 of the first stage 12, and the straight portion 111 of the first stage 11 and the straight portion 101 of the second stage 12 clamp the display panel 10; on the surface of the second stage 12 facing the first stage 11, a step 123 is provided at the connection between the circular arc end 122 and the flat part of the flat part 121 of the second stage 12, and the sliding assembly 13 passes through the step 123 and surrounds the first stage 11 and the display panel 10 fixed on the first stage 11.
Note that, as shown in fig. 3, when the second stage 12 and the first stage 11 are relatively moved, the arc end 122 of the second stage 12 is fitted into the arc bending portion 121 of the first stage 11, and therefore the radius of curvature of the arc end 121 of the second stage 12 should be smaller than the radius of curvature of the arc bending portion 111 of the first stage 11. At this time, the flat portion 111 of the first stage 11 and the flat portion 121 of the second stage 12 hold the flat portion 101 of the display panel 10, and in order to make the slide assembly 13 loop the display panel 10 and the first stage 11 without moving the second stage 12 away, a step 123 is provided at a connection position between the flat portion 121 and the circular arc end 122 on the lower surface of the second stage 12, and at this time, the slide assembly 13 can be split into two parts, one of which passes through the step 123 and then is connected with the other part to form the slide assembly 13 looping the display panel 10 and the first stage 11. Alternatively, in the second stage 12 as shown in fig. 3, a vacuum suction hole 124 may be further provided on the surface facing the straight portion 111 and the arc bending portion 112 of the first stage 11 to suction-fix the display panel 10 on the second stage 12 through the vacuum suction hole 124, and providing the vacuum suction hole 124 on the arc end 122 of the second stage 12 may realize the pre-bending and fixing of the display panel bending portion 102.
Specifically, when the display panel is bent by using the bending jig shown in fig. 3, the display panel 10 should be attached to the straight portion 121 of the second stage 12; at this time, the second stage 12 is vacuumized toward the vacuum suction holes 124 formed in the surfaces of the straight portion 111 and the arc bending portion 112 of the first stage 11, and the second stage 12 fixes the display panel 10 by suction through the vacuum suction holes 124; then, the first stage 11 or the second stage 12 is moved, so that the arc end 122 of the second stage 12 is embedded in the arc bending part 112 of the first stage 11, and the straight part 111 of the first stage 11 and the straight part 101 of the second stage 12 clamp the display panel 10; releasing the vacuum in the vacuum suction holes 124 provided on the surface of the arc bending portion 112 of the second stage 12 toward the first stage 11; vacuumizing the vacuum suction holes 113 on the flat portion 111 of the first stage 11, and the flat portion 111 of the first stage 11 sucks and fixes the flat portion 101 of the display panel 10 through the vacuum suction holes 113; the sliding assembly 13 is inserted through the second stage 12 and faces the side surface of the first stage 11, and the step 123 is arranged at the joint of the circular arc end 122 and the straight part of the straight part 121 of the second stage 11 and surrounds the first stage 11 and the display panel 10 fixed on the first stage 11.
With continued reference to fig. 1-3, in order to facilitate the sliding assembly 13 to surround the first substrate 11 and the display panel 10 fixed on the first substrate 11, an embodiment of the present invention provides a sliding assembly, fig. 4 is a schematic structural diagram of a sliding assembly provided in an embodiment of the present invention, and referring to fig. 4, the sliding assembly 13 may be configured to include a first sliding bar 131, a second sliding bar 132, and a spring screw 133, and the first sliding bar 131 and the second sliding bar 132 may be connected by the spring screw 133. Specifically, when the sliding assembly 13 is looped around the first stage 11 and the display panel 10, the first sliding bar 131 of the sliding assembly 13 may first pass through the second stage 12 and face a side surface of the first stage 11, and the circular arc end 122 is provided with a step at a connection point of the straight portion in the straight portion 121 of the second stage 12; the second slide bar 132 of the slide assembly 13 is then connected to the first slide bar 131 using the spring screw 133. Wherein, realize elastic connection through spring screw 133, can carry out the regulation of elasticity degree, guarantee that the sliding component 13 that first sliding strip 131 and second sliding strip 132 are constituteed can closely encircle first base plate 11 and display panel 10 at the slip in-process, make the circular arc kink 112 of display panel 10 laminating first base plate 11 buckle.
Further, with reference to fig. 4, the second slide bar 132 includes a parallel portion 1321 and a connecting portion 1322 at two ends of the parallel portion 1321, a slide protrusion 1323 is disposed on the connecting portion 1322, and with reference to fig. 3, correspondingly, a slide rail groove 1121 may be disposed on a side surface of the arc bending portion 112 of the first stage 11, the side surface is perpendicular to a surface of the arc bending portion 112 facing the display panel 10, and the slide protrusion 1323 may be embedded in the slide rail groove 1121 and may slide along the slide rail groove 1121 from one end of the arc bending portion 112 of the first stage 11 connected to the straight portion 111 to the other end.
By providing the sliding guide groove 1121 on the arc bending portion 112 of the first stage 11 and providing the sliding protrusion 1323 in the second sliding bar 132 correspondingly provided in the sliding assembly 13 to be embedded in the sliding guide groove 1121 for sliding, the trajectory of the sliding assembly 13 during sliding can be fixed, so that the sliding assembly 13 can slide more smoothly, and the bending effect of the display panel 10 is ensured.
Referring to fig. 2, regarding a bending jig for fixing the flat portion 101 of the display panel 10, another sliding assembly and a corresponding bending jig for the display panel provided by the embodiment of the invention, which are fixed on the second surface 1102 of the flat portion 111 of the first stage 11, fig. 5 is a schematic structural diagram of another sliding assembly provided by the embodiment of the invention, fig. 6 is a schematic structural diagram of a bending jig for the display panel including the sliding assembly shown in fig. 5 provided by the embodiment of the invention, referring to fig. 5 and fig. 6, a sliding guide groove 1121 is disposed on a side surface of the arc bending portion 112 of the first stage 11, and the side surface is perpendicularly intersected with a surface, i.e., the second surface 1102, of the arc bending portion 112 facing the display panel 10; the sliding assembly 13 includes a U-shaped sliding bar 134, the U-shaped sliding bar 134 includes a parallel portion 1341 and connecting portions 1342 located at two ends of the parallel portion 1341, a sliding protrusion 1343 is disposed on the connecting portion 1342, the sliding protrusion 1343 can be embedded in the sliding guide groove 1121, and can slide to the other end along the sliding guide groove 1121 from one end of the arc bending portion 112 of the first stage 11 connected to the straight portion 111. That is, the slide module 13 is configured to slide only by the sliding projection 1343 of the U-shaped slide bar 134 engaging with the slide rail groove 1121 provided on the side surface of the arc bent portion 112 of the first stage 11, and when the U-shaped slide bar is mounted, the U-shaped slide bar is located on the same side of the first stage 11 as the display panel 10 and restrains the display panel 10 on the first stage 11, and the structure of the U-shaped slide bar 134 is simpler, but the sliding effect is also achieved, and the display panel 10 can be surely bent in conformity with the arc bent portion 112 of the first stage 11.
It should be noted that, the driving manner of the sliding process of the sliding assembly 13 may be motor driving, and those skilled in the art may design the driving manner according to the actual situation, and besides, the sliding driving may also be manual driving, which is not limited herein.
An embodiment of the present invention further provides a bending method for a display panel, where any one of the bending jigs provided in the embodiments of the present invention is adopted, fig. 7 is a flowchart of the bending method for a display panel provided in the embodiments of the present invention, and referring to fig. 1 and fig. 7, the bending method includes:
s110, fixing the display panel on a straight part of a first carrying platform;
s120, sleeving the sliding assembly on a first carrying table and a display panel fixed on the first carrying table in an annular mode;
and S130, driving the sliding assembly to slide from one end of the first carrying platform connected with the straight portion to the other end along the arc bending portion of the first carrying platform, so as to drive the bending portion of the display panel to be attached to the bending portion of the first carrying platform for bending.
According to the bending method of the display panel provided by the embodiment of the invention, the sliding assembly is adopted to annularly cover the first carrying platform and the display panel, and the sliding assembly slides from one end of the first carrying platform arc bending part connected with the straight part to the other end along the arc bending part of the first carrying platform, so that the bending part of the display panel is jointed with the arc bending part of the first carrying platform to be bent, the bending of the display panel at a fixed arc radian during bending is realized, and the problems that the dead folding phenomenon is easy to occur in the conventional bending method, dead folding points are generated, and even the wires on the bending part of the display screen are easy to break are solved.
With continuing reference to fig. 1 and 2, when the display panel is sucked and fixed by providing vacuum suction holes on the first stage 11, in the bending method of the display panel, S120, looping the sliding assembly around the first stage and the display panel fixed on the first stage includes:
s121, attaching the display panel 10 to the flat portion 111 of the first stage 11;
s122, vacuum is drawn into the vacuum suction holes 113 on the flat portion 111 of the first stage 11, and the flat portion 111 of the first stage 11 sucks and fixes the flat portion 101 of the display panel 10 through the vacuum suction holes 113.
For the bending jig of the display panel shown in fig. 3, an embodiment of the present invention also provides a bending method, fig. 8 is a flowchart of another bending method of the display panel provided in the embodiment of the present invention, and referring to fig. 3 and fig. 8, the bending method includes:
s210, attaching the display panel to the flat part of the second carrying platform;
s220, vacuumizing a vacuum adsorption hole formed in the surface of the second carrying platform facing the first carrying platform straight part and the arc bending part, and adsorbing and fixing the display panel by the second carrying platform through the vacuum adsorption hole;
s230, moving the first carrying table or the second carrying table to enable the arc end of the second carrying table to be embedded in the arc bending part of the first carrying table, and clamping the straight part of the display panel by the straight part of the first carrying table and the second carrying table;
s240, releasing vacuum in vacuum adsorption holes formed in the surface of the arc bending part of the second carrying platform facing the first carrying platform;
s250, introducing vacuum into the vacuum adsorption holes on the flat part of the first carrying platform, and adsorbing and fixing the flat part of the display panel by the flat part of the first carrying platform through the vacuum adsorption holes;
s260, enabling the sliding assembly to penetrate through a step arranged at the connecting position of the arc end and the straight part in the straight part of the second carrying platform on the surface of one side, facing the first carrying platform, of the second carrying platform, and sleeving the first carrying platform and the display panel fixed on the first carrying platform;
and S270, driving the sliding assembly to slide from the end, connected with the straight portion, of the arc bending portion of the first carrying platform to the other end of the sliding assembly along the arc bending portion of the first carrying platform, so as to drive the bending portion of the display panel to be attached to the bending portion of the first carrying platform for bending.
In step S260, the step of passing the sliding assembly through a step arranged at a connection position of a circular arc end and a straight portion of the second stage on a side surface of the second stage facing the first stage, looping the first stage and the display panel fixed on the first stage, the sliding assembly provided in the embodiment of the present invention as shown in fig. 3 correspondingly includes:
s261, enabling a first sliding strip of the sliding assembly to penetrate through the second carrying table and face the surface of one side of the first carrying table, and arranging a step at the connecting position of the arc end and the straight part in the straight part of the second carrying table;
and S262, connecting a second sliding bar of the sliding assembly with the first sliding bar by adopting a spring screw.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. The utility model provides a display panel's tool of buckling which characterized in that includes:
the first carrying platform comprises a straight part and an arc bending part which are connected with each other, and the straight part of the first carrying platform fixes the straight part of the display panel;
the sliding assembly is sleeved on the first carrying platform and the display panel fixed on the first carrying platform in an annular mode, and the sliding assembly can slide from one end, connected with the straight portion, of the arc bending portion of the first carrying platform to the other end of the arc bending portion of the first carrying platform so that the bending portion of the display panel is attached to the arc bending portion of the first carrying platform to be bent;
the first carrying platform comprises a first surface and a second surface which are mutually deviated, the arc bending part in the first carrying platform bends towards one side of the first surface, the first surface of the straight part of the first carrying platform fixes the straight part of the display panel, and the sliding assembly can slide along the arc bending part of the first carrying platform so that the bending part of the display panel is jointed with the first surface of the arc bending part of the first carrying platform to be bent.
2. The bending jig according to claim 1, wherein the flat portion of the first stage is provided with a vacuum suction hole, and the flat portion of the first stage fixes the flat portion of the display panel by suction through the vacuum suction hole.
3. The bending jig according to claim 1, further comprising a second stage, wherein the second stage comprises a straight portion, one end of the straight portion is an arc end, the first stage and the second stage are movable relative to each other, the arc end of the second stage is embedded in the arc bending portion of the first stage, and the straight portion of the first stage and the second stage clamp the straight portion of the display panel;
and a step is arranged at the joint of the arc end and the straight part of the second carrying platform on the surface of one side of the second carrying platform facing the first carrying platform, and the sliding assembly penetrates through the step ring sleeve to be sleeved on the first carrying platform and the display panel fixed on the first carrying platform.
4. The bending jig according to claim 3, wherein a radius of curvature of the arc end of the second stage is smaller than a radius of curvature of the arc bending portion of the first stage.
5. The bending jig according to claim 3, wherein vacuum suction holes are provided on surfaces of the second stage facing the straight portion and the arc bending portion of the first stage, and the display panel can be sucked on the second stage through the vacuum suction holes.
6. The bending jig according to claim 1, wherein the sliding assembly comprises a first sliding bar, a second sliding bar and a spring screw, and the first sliding bar and the second sliding bar can be connected through the spring screw.
7. The bending jig according to claim 6, wherein a sliding guide groove is provided on a side surface of the arc bending portion of the first stage, the side surface perpendicularly intersects with the surface of the arc bending portion facing the display panel, the second sliding strip includes a parallel portion and connecting portions at both ends of the parallel portion, and a sliding protrusion is provided on the connecting portions, the sliding protrusion being capable of being embedded in the sliding guide groove and sliding along the sliding guide groove from one end of the first stage connected to the straight portion to the other end.
8. The bending jig according to claim 1, wherein a sliding guide groove is provided on a side surface of the arc bending portion of the first stage, the side surface perpendicularly intersecting with a surface of the arc bending portion facing the display panel; the sliding assembly comprises a U-shaped sliding strip, the U-shaped sliding strip comprises a parallel portion and connecting portions located at two ends of the parallel portion, sliding convex blocks are arranged on the connecting portions, the sliding convex blocks can be embedded in the sliding guide rail grooves, and the sliding guide rail grooves can be formed by connecting arc bending portions and straight portions of the first carrying platform to one end of the sliding guide rail grooves and sliding to the other end of the sliding guide rail grooves.
9. A method for bending a display panel, the method comprising the steps of:
fixing the display panel on the flat part of the first carrying platform;
sleeving a sliding assembly on the first carrying platform in a ring manner and fixing a display panel on the first carrying platform;
and driving the sliding assembly to slide from one end of the sliding assembly, which is connected with the straight part, to the other end of the sliding assembly along the arc bending part of the first carrying platform, so as to drive the bending part of the display panel to be attached to the bending part of the first carrying platform for bending.
10. The bending method according to claim 9, wherein the fixing the display panel to the flat portion of the first stage comprises:
attaching the display panel to the flat part of the first carrying platform;
and vacuumizing the vacuum adsorption hole on the straight part of the first carrying platform, and adsorbing and fixing the straight part of the display panel by the straight part of the first carrying platform through the vacuum adsorption hole.
11. The bending method according to claim 9, wherein before fixing the display panel to the flat portion of the first stage, the method further comprises:
attaching the display panel to the flat part of the second carrying platform;
vacuumizing a vacuum adsorption hole arranged on the surface of the second carrying platform facing the first carrying platform straight part and the arc bending part, and adsorbing and fixing the display panel by the second carrying platform through the vacuum adsorption hole;
moving a first carrying table or a second carrying table to enable an arc end of the second carrying table to be embedded in an arc bending part of the first carrying table, wherein the straight part of the first carrying table and the straight part of the second carrying table clamp the straight part of the display panel;
the display panel is fixed on the straight part of the first carrying platform; looping a sliding assembly around the first carrier and a display panel fixed on the first carrier, comprising:
releasing the vacuum in the vacuum adsorption holes arranged on the surface of the arc bending part of the second carrying platform facing the first carrying platform;
introducing vacuum into a vacuum adsorption hole on the straight part of the first carrying platform, and adsorbing and fixing the straight part of the display panel by the straight part of the first carrying platform through the vacuum adsorption hole;
and the sliding assembly penetrates through the second carrying platform and faces one side surface of the first carrying platform, and a step is arranged at the joint of the arc end and the straight part in the straight part of the second carrying platform and is sleeved on the first carrying platform and the display panel fixed on the first carrying platform.
12. The method of claim 11, wherein the step provided at a junction of the circular arc end and the flat portion of the second stage on a side surface of the slide assembly that faces the first stage through the second stage, loops around the first stage and the display panel fixed to the first stage, comprises:
the first sliding strip of the sliding assembly penetrates through the second carrying table and faces the surface of one side of the first carrying table, and a step is arranged at the connecting position of the circular arc end and the straight part in the straight part of the second carrying table;
and connecting the second sliding bar and the first sliding bar of the sliding assembly by adopting a spring screw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811409875.1A CN109272875B (en) | 2018-11-23 | 2018-11-23 | Bending jig and bending method for display panel |
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| CN201811409875.1A CN109272875B (en) | 2018-11-23 | 2018-11-23 | Bending jig and bending method for display panel |
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| CN112309245B (en) * | 2019-07-26 | 2022-08-23 | 群创光电股份有限公司 | Foldable display device |
| CN110675747B (en) * | 2019-09-16 | 2021-01-01 | 武汉华星光电半导体显示技术有限公司 | Foldable display device |
| CN113035084B (en) * | 2021-04-09 | 2022-12-30 | 成都京东方光电科技有限公司 | Profiling laminating device, profiling laminating method, display module and display device |
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| JP4328061B2 (en) * | 2002-05-10 | 2009-09-09 | 株式会社三五 | Metal plate bending method |
| JP6831710B2 (en) * | 2017-01-30 | 2021-02-17 | 株式会社ジャパンディスプレイ | Display device manufacturing method and display device |
| CN107167935B (en) * | 2017-05-09 | 2020-04-28 | 深圳市华星光电半导体显示技术有限公司 | Method and device for releasing film stress of array substrate |
| KR101892080B1 (en) * | 2017-07-06 | 2018-08-27 | 노병무 | Bending apparatus and method of tube-type long pipe for vehicle |
| CN108123071B (en) * | 2018-01-23 | 2019-11-05 | 武汉华星光电半导体显示技术有限公司 | Flexible display apparatus bends jig and flexible display apparatus bending method |
| CN108672527B (en) * | 2018-04-04 | 2019-12-10 | 安徽安缆模具有限公司 | Bending device |
| CN108665813A (en) * | 2018-07-18 | 2018-10-16 | 昆山国显光电有限公司 | Flexible screen bends jig and flexible screen bending method |
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