CN111413814B - Display panel testing device - Google Patents
Display panel testing device Download PDFInfo
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- CN111413814B CN111413814B CN202010347272.4A CN202010347272A CN111413814B CN 111413814 B CN111413814 B CN 111413814B CN 202010347272 A CN202010347272 A CN 202010347272A CN 111413814 B CN111413814 B CN 111413814B
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- ball
- drop
- guide rail
- display panel
- rail
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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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a display panel testing arrangement, it includes: the base is used for placing the display panel to be tested; falling balls; the first guide rail is arranged on the base and extends along a first direction; the second guide rail is arranged on the first guide rail and extends along a second direction, and the second guide rail is used for moving along the first guide rail in the first direction; a third guide rail disposed on the second guide rail and extending in a third direction, the third guide rail being configured to move in the second direction along the second guide rail; and the falling ball release mechanism is arranged on the third guide rail and is used for releasing the falling ball at a preset position in the third direction.
Description
Technical Field
The application relates to the field of display, in particular to a display panel testing device.
Background
In the manufacturing process of the liquid crystal display panel, liquid crystal is injected between the color film substrate and the array substrate, and the box is aligned through frame glue. A Spacer (Photo Spacer) is disposed between the color film substrate and the array substrate to form a certain interval (Cell gap). In the case where the filling amount of liquid crystal in the cell is insufficient or air is present at the time of filling, liquid crystal bubbles (LC bubbles) may occur in the panel after the cell is formed. On the other hand, with the demands of light and thin televisions and cost reduction, the thickness of the glass substrate is becoming smaller and smaller, and the strength of the manufactured liquid crystal panel needs to be confirmed. The strength of the liquid crystal panel can be confirmed by a ball drop test in general. Meanwhile, through ball falling test, the balls are crashed on the panel, and the space in the box of the liquid crystal panel is extruded to confirm whether the injected liquid crystal quantity is sufficient. However, the current ball drop test is manual and single-point, which is prone to error, inconvenient to operate and low in efficiency.
Disclosure of Invention
Accordingly, the present application is directed to a display panel testing device with high testing accuracy, simple operation and high testing efficiency.
A display panel testing apparatus, comprising:
the base is used for placing the display panel to be tested;
falling balls;
the first guide rail is arranged on the base and extends along a first direction;
the second guide rail is arranged on the first guide rail and extends along a second direction, and the second guide rail is used for moving along the first guide rail in the first direction;
a third guide rail disposed on the second guide rail and extending in a third direction, the third guide rail being configured to move in the second direction along the second guide rail; and
the falling ball release mechanism is arranged on the third guide rail and used for releasing the falling ball at a preset position in the third direction.
In an embodiment, the base has a placement surface for placing the display panel to be tested, the first direction is a direction perpendicular to the placement surface, and the second direction is perpendicular to the third direction and parallel to the placement surface.
In an embodiment, the display panel testing device includes two sets of the first guide rails disposed opposite to each other, two sets of the second guide rails disposed opposite to each other, and a set of the third guide rails.
In an embodiment, each set of the first guide rails includes two or more first guide rails disposed at intervals along the second direction, each set of the second guide rails is disposed on one set of the first guide rails, each set of the second guide rails includes one or more second guide rails, the one set of the third guide rails is disposed between two sets of the second guide rails, and the one set of the third guide rails includes one or more third guide rails.
In an embodiment, each set of the third guide rails includes a plurality of third guide rails disposed at intervals along the second direction, and the display panel testing device further includes a plurality of falling balls and a plurality of falling ball release mechanisms.
In an embodiment, the ball drop release mechanism includes at least one ball drop hole and a ball drop release switch corresponding to the ball drop hole one to one, the ball drop hole is a through hole formed on the third guide rail, when the ball drop release mechanism does not release the ball drop, the ball drop release switch covers the ball drop hole, and when the ball drop release mechanism releases the ball drop, the ball drop release switch exposes the ball drop hole.
In one embodiment, the display panel testing device includes an inflatable cushion disposed on a base.
In an embodiment, the display panel testing device further comprises a ball drop collecting groove arranged on the base, wherein the ball drop collecting groove is arranged around the inflatable cushion and is provided with a ball drop collecting opening, and the ball drop collecting groove comprises an inclined surface inclined towards the ball drop collecting opening.
In one embodiment, the ball drop collection trough is disposed in a ring around the inflatable cushion, the ball drop collection trough having a peak, the ball drop collection trough including an inclined surface that slopes from the peak toward the ball drop collection port.
In an embodiment, the display panel testing device includes a ball drop transporting mechanism, the ball drop transporting mechanism includes a ball drop transporting rail and a ball drop transporting portion, one end of the ball drop transporting rail is connected with the ball drop collecting port, the other end is connected with the third guide rail, and the ball drop transporting portion is used for transporting the ball drop from the ball drop collecting port to the third guide rail along the ball drop transporting rail. Compared with the prior art, the display panel testing device can replace manual operation through machine operation, and can perform multi-point operation. The cushion can simulate the buffering of backlight unit, and ejector PIN in the cushion can simulate different top PIN designs. In addition, the display panel testing device can automatically collect falling balls and convey the falling balls to the guide rail for release.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a display panel testing apparatus according to an embodiment of the present application.
Fig. 2 is a schematic perspective view of a display panel testing apparatus according to another embodiment of the present application.
Fig. 3 (a) to 3 (c) are perspective views of a first rail, a second rail and a third rail of a display panel testing apparatus according to another embodiment of the present application.
Fig. 4 (a) is a schematic plan view of the ball drop release mechanism of fig. 1 when the ball drop is not released, and fig. 4 (b) is a schematic plan view of the ball drop release mechanism of fig. 1 when the ball drop is released.
Fig. 5 is a schematic view of the structure of the inflatable cushion of fig. 1.
Fig. 6 is a schematic view of a part of the structure of the ball drop collecting tank in fig. 1.
Detailed Description
The technical solutions in the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which are within the scope of the protection of the present application, will be within the skill of the art without undue effort.
Referring to fig. 1, a display panel testing apparatus 100 according to an embodiment of the present disclosure is used for performing a liquid crystal bubble test and an intensity test on a display panel. The display panel comprises a liquid crystal display module.
The display panel testing apparatus 100 includes a base 10 for placing a display panel to be tested; a drop ball 20 for dropping from a certain height to the display panel 200; a first guide rail 30 provided on the base 10 and extending in a first direction D1; a second guide rail 40 disposed on the first guide rail 30 and extending along the second direction D2, the second guide rail 40 being configured to move along the first guide rail 30 in the first direction D1; a third rail 50 disposed on the second rail 40 and extending along the third direction D3, the third rail 50 being configured to move along the second rail 40 in the second direction D2; and a ball drop release mechanism 60 disposed on the third rail 50 for releasing the ball drop 20 at a preset position in the third direction D3.
The drop balls 20 may be steel balls.
The extending directions and the number of the first rail 30, the second rail 40, and the third rail 50 are not limited in the present application. In the present embodiment, the chassis 10 has a placement surface 10a for placing the display panel 200 to be tested. The Z axis is defined as a direction perpendicular to the height of the placement surface 10a, the longitudinal direction of the placement surface 10a is defined as an X axis direction, and the width direction of the placement surface 10a is defined as a Y axis direction. The X axis and the Y axis are mutually perpendicular, and the Z axis is perpendicular to the plane of the X axis and the Y axis. The first direction D1 is the Z-axis direction. The second direction D2 is the X-axis direction. The third direction D3 is the Y-axis direction. The display panel testing apparatus 100 includes two sets of first guide rails 30 disposed opposite to each other, two sets of second guide rails 40 disposed opposite to each other, and a set of third guide rails 50. The two sets of first guide rails 30 may be disposed parallel to each other or may be angled. The two sets of second guide rails 40 may be disposed parallel to each other or may be angled. Each set of first guide rails 30 includes two or more first guide rails 30 disposed at intervals along the second direction D2. Each set of second guide tracks 40 is disposed on a set of first guide tracks 30. Each set of second rails 40 includes one or more second rails 40. The two sets of second rails 40 include the same number of second rails 40. Each second guide rail 40 in one set of second guide rails 40 corresponds to the second guide rail 40 in the other set one by one, and is arranged at the same height of the first guide rail 30. The two second rails 40 corresponding to each other may be provided independently or may be formed integrally as shown in fig. 2, for example, the two second rails 40 are a ring-shaped rail provided around the first rail 30. The set of third guide rails 50 is disposed between the two sets of second guide rails 40. The set of third rails 50 includes one or more third rails 50. In one embodiment, each set of first rails 30 includes two first rails 30. Each set of second rails 40 includes one second rail 40. Each set of third rails 50 includes a third rail 50.
The first guide rail 30 and the second guide rail 40, and the second guide rail 40 and the third guide rail 50 may be relatively moved by a chute and a slider, for example.
Referring to fig. 2, a part of the structure of the display test device of the present application, for example, a ball drop transport mechanism described below, is omitted in fig. 2, and the display panel 200 to be tested is omitted. In another embodiment of the present application, each set of second rails 40 includes a plurality of second rails 40 spaced apart along the first direction D1. Each set of third guide rails 50 includes a plurality of third guide rails 50 spaced apart along the second direction D2. Meanwhile, the display panel testing apparatus 100 further includes a plurality of balls 20 and a plurality of ball drop release mechanisms 60, so that a display panel testing apparatus capable of simultaneously dropping balls at multiple points can be realized. It is understood that each set of second tracks 40 may include only one second track 40. And each set of third guide rails 50 includes a plurality of third guide rails 50 spaced apart along the second direction D2. The structure can also realize the simultaneous falling of balls at multiple points.
In other embodiments of the present application, referring to fig. 3 (a), the first direction D1 is a Y-axis direction, the second direction D2 is an X-axis direction, and the third direction D3 is a Z-axis direction. The number of the first guide rail 30, the second guide rail 40 and the third guide rail 50 is two, one and one in sequence. Referring to fig. 3 (b), the first direction D1 is a Y-axis direction, the second direction D2 is a Z-axis direction, and the third direction D3 is an X-axis direction. The number of the first guide rail 30, the second guide rail 40 and the third guide rail 50 is two, two and one in sequence. Referring to fig. 3 (c), the first direction D1 is a Y-axis direction, the second direction D2 is a Z-axis direction, and the third direction D3 is an X-axis direction. The number of the first guide rail 30, the second guide rail 40 and the third guide rail 50 is one.
In the present embodiment, as shown in fig. 4 (a) and 4 (b), the ball drop release mechanism 60 includes at least one ball drop hole 61 and a plurality of ball drop release switches 62 corresponding to the ball drop holes provided at intervals on the third rail 50. The ball drop hole 61 is a through hole formed in the third rail 50. The diameter of the through hole is larger than the diameter of the falling ball 20 so as to allow the falling ball 20 to pass through. The ball drop release switch 62 matches the shape of the ball drop hole 61. As shown in fig. 4 (a), when the ball drop release mechanism 60 does not release the ball drop 20, the ball drop release switch 62 is turned off, covering the ball drop hole 61, so that the ball drop 20 cannot drop from the ball drop hole 61. As shown in fig. 4 (b), when the ball drop release mechanism 60 releases the ball drop 20, the ball drop release switch 62 opens, exposing the ball drop hole 61, and dropping the ball drop 20 from the ball drop hole 61.
It is understood that in other embodiments of the present application, the structure of the ball drop release mechanism 60 is not limited, and any structure for performing ball drop release at a predetermined position may be employed as the ball drop release mechanism 60 of the present application. For example, in another embodiment of the present application, the drop ball release mechanism 60 may include a sliding portion for sliding along the third rail 50 and a drop ball release portion fixed to the sliding portion for moving with the sliding portion, and the drop ball release portion may carry the drop ball 20 and release the drop ball 20 when the sliding portion slides to a predetermined position. The ball drop release portion may be, for example, for attracting the ball drop 20 by magnetic force, or for holding the ball drop 20 by friction force, or the like.
The display panel testing apparatus 100 further includes an inflatable cushion 70 disposed on the base. The inflatable cushion 70 is used to simulate the backlight of a liquid crystal panel. Inflating the inflatable cushion 70 may simulate the cushioning effect of a backlight. Referring to fig. 5, at least one height-adjustable carrier bar 71 is disposed within the inflatable cushion 70. A plurality 71 are distributed at different locations within inflatable cushion 70. When the top PIN design of different customers needs to be simulated, the ejector rods at the corresponding positions can be propped up to simulate the top PIN effect.
The display panel testing apparatus 100 further includes a ball drop collection trough 80 disposed on the base. Ball drop collection trough 80 can be disposed about inflatable cushion 70. The ball drop collecting tank 80 has a ball drop collecting port 81. The ball drop collecting groove 80 includes an inclined surface inclined toward the ball drop collecting port 81. In one embodiment, ball drop collection channel 80 is disposed in an annular shape around inflatable cushion 70. Referring to fig. 6, fig. 6 shows a partial structure of the falling ball collecting tank 80. The ball drop collecting trough 80 has a highest point 82, and the ball drop collecting trough 80 includes an inclined surface inclined from the highest point 82 toward the ball drop collecting port 81. In another embodiment, four ball drop collection slots 80 are provided around four sides of the inflatable cushion 70. Each ball drop collecting trough 80 includes a ball drop collecting port 81 and an inclined surface inclined toward the ball drop collecting port 81 thereof.
The display panel testing apparatus 100 further includes a ball drop transport mechanism 90. The ball drop transport mechanism 90 includes a ball drop transport rail 91 and a ball drop transport portion 92. The ball drop transport rail 91 has one end connected to the ball drop collection port 82 and the other end connected to the third rail 50. The ball drop transport portion 92 may transport the ball drop 20 from the ball drop collection port 82 to the third rail 50 along the ball drop transport rail 91. The position of the structure of the ball drop transport portion 92 is not limited in this application. The ball drop transport section 92 may be provided in the ball drop transport rail 91, or may be provided outside the ball drop transport rail 91. The ball drop transport portion 92 may be provided at one end of the ball drop transport rail 91, or may be provided along the entire ball drop transport rail 91, such as a conveyor belt. For example, the drop balls transporting portion 92 may include a moving member and a drop ball picking and placing member. The drop ball pick-and-place member is used for grabbing and releasing the drop balls 20. The mover is used to transport the drop balls 20. The ball drop pick-and-place member can be, for example, an electromagnet or a mechanical claw. The moving member may be driven by a motor to move, or may be a compression spring, which stores force when compressed and ejects the drop ball 20 to the third guide rail 50 when released. The third rail 50 is provided with an opening through which a ball is input.
It will be appreciated that the display panel testing apparatus 100 may further include a plurality of driving mechanisms for driving the second rail 40 to move along the first rail 30, driving the third rail 50 to move along the second rail 40, and so on. The plurality of drive mechanisms also serve to drive the drop ball release mechanism 60 and the drop ball transport mechanism 90. The display panel testing apparatus 100 may further include a control mechanism for controlling a series of actions such as rail movement, ball drop release, ball drop collection and transportation.
Compared with the prior art, the display panel testing device can replace manual operation through machine operation, and can perform multi-point operation. The cushion can simulate the buffering of backlight unit, and ejector PIN in the cushion can simulate different top PIN designs. In addition, the display panel testing device can automatically collect falling balls and convey the falling balls to the guide rail for release.
The foregoing has provided a detailed description of embodiments of the present application, with specific examples being set forth herein to provide a thorough understanding of the present application. Meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (8)
1. A display panel testing apparatus, comprising:
the base is used for placing the display panel to be tested;
falling balls;
the first guide rail is arranged on the base and extends along a first direction;
the second guide rail is arranged on the first guide rail and extends along a second direction, and the second guide rail is used for moving along the first guide rail in the first direction;
the third guide rail is arranged on the second guide rail and extends along a third direction, the third guide rail is used for moving along the second guide rail in the second direction, a groove extending along the third direction is formed in the third guide rail, at least one ball falling hole is formed in the bottom of the groove, and a ball falling release switch is further arranged on the third guide rail and used for shielding or exposing the ball falling hole so as to control the release of the ball falling;
the ball falling collecting groove is arranged on the base and is provided with a ball falling collecting opening;
the ball falling transportation mechanism comprises a ball falling transportation rail and a ball falling transportation part, one end of the ball falling transportation rail is connected with the ball falling collecting port, the other end of the ball falling transportation rail is connected with the third guide rail, and the ball falling transportation part is used for conveying the ball falling from the ball falling collecting port to the groove along the ball falling transportation rail and releasing the ball falling;
the falling ball release mechanism is arranged on the third guide rail and used for releasing the falling ball at a preset position in the third direction; and
the inflatable cushion is arranged on the base, and at least one ejector rod with adjustable height is arranged in the inflatable cushion.
2. The display panel testing device according to claim 1, wherein the base has a placement surface for placing the display panel to be tested, the first direction is a direction perpendicular to the placement surface, and the second direction is perpendicular to the third direction and parallel to the placement surface.
3. The display panel testing device of claim 2, wherein the display panel testing device comprises two sets of the first rail, two sets of the second rail, and a set of the third rail.
4. The display panel testing device of claim 3, wherein each set of the first guide rails includes two or more of the first guide rails disposed at intervals along the second direction, each set of the second guide rails is disposed on one set of the first guide rails, each set of the second guide rails includes one or more of the second guide rails, the set of the third guide rails is disposed between two sets of the second guide rails, and the set of the third guide rails includes one or more of the third guide rails.
5. The display panel testing apparatus of claim 4, wherein each set of the third guide rails includes a plurality of the third guide rails spaced apart along the second direction, the display panel testing apparatus further comprising a plurality of drop balls and a plurality of drop ball release mechanisms.
6. The display panel test apparatus according to claim 1, wherein the ball drop release switch covers the ball drop hole when the ball drop release mechanism does not release the ball drop, and the ball drop release switch exposes the ball drop hole when the ball drop release mechanism releases the ball drop.
7. The display panel testing device of claim 6, wherein the ball drop collection trough is disposed about the inflatable cushion, the ball drop collection trough including an inclined surface that is inclined toward the ball drop collection port.
8. The display panel testing device of claim 7, wherein said drop-ball collection well is disposed in a ring around said inflatable cushion, said drop-ball collection well having a highest point, said drop-ball collection well including an inclined surface that slopes from said highest point toward said drop-ball collection opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347272.4A CN111413814B (en) | 2020-04-28 | 2020-04-28 | Display panel testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347272.4A CN111413814B (en) | 2020-04-28 | 2020-04-28 | Display panel testing device |
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| Publication Number | Publication Date |
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| CN111413814A CN111413814A (en) | 2020-07-14 |
| CN111413814B true CN111413814B (en) | 2023-06-27 |
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| CN202010347272.4A Active CN111413814B (en) | 2020-04-28 | 2020-04-28 | Display panel testing device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116952705B (en) * | 2023-09-19 | 2024-02-20 | 中铁十七局集团第五工程有限公司 | Structural bionic basalt fiber reinforced composite material impact resistance detection device |
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| JPH08184793A (en) * | 1994-12-27 | 1996-07-16 | Casio Comput Co Ltd | Apparatus for producing liquid crystal panel |
| CN106596027A (en) * | 2016-12-16 | 2017-04-26 | 武汉华星光电技术有限公司 | Ball falling detection device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2105061U (en) * | 1991-10-31 | 1992-05-20 | 中国农业机械化科学研究院工艺材料所 | Impact fatigue tester for falling milling balls |
| TW200707365A (en) * | 2005-04-15 | 2007-02-16 | Samsung Electronics Co Ltd | LCD panel and apparatus for and method of testing LCD panel |
| CN103257025A (en) * | 2012-02-20 | 2013-08-21 | 鸿富锦精密工业（深圳）有限公司 | Drop test machine |
| CN104297078A (en) * | 2014-10-22 | 2015-01-21 | 京东方科技集团股份有限公司 | Falling sphere test device |
| CN106500946B (en) * | 2016-11-23 | 2019-02-05 | 清华大学 | The ball type device falling sphere intensity experiment device of highly adjustable automatic cycle |
| CN206627263U (en) * | 2017-01-23 | 2017-11-10 | 京东方科技集团股份有限公司 | Show product strength test equipment |
| CN106989884B (en) * | 2017-03-27 | 2021-01-08 | 京东方科技集团股份有限公司 | Falling ball test device |
| CN207379849U (en) * | 2017-10-27 | 2018-05-18 | 河南飞孟金刚石工业有限公司 | A kind of resin-diamond device for detecting performance |
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2020
- 2020-04-28 CN CN202010347272.4A patent/CN111413814B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184793A (en) * | 1994-12-27 | 1996-07-16 | Casio Comput Co Ltd | Apparatus for producing liquid crystal panel |
| CN106596027A (en) * | 2016-12-16 | 2017-04-26 | 武汉华星光电技术有限公司 | Ball falling detection device |
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| CN111413814A (en) | 2020-07-14 |
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