CN111427174A - Lighting test fixture and test method for display panel - Google Patents
Lighting test fixture and test method for display panel Download PDFInfo
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- CN111427174A CN111427174A CN202010306667.XA CN202010306667A CN111427174A CN 111427174 A CN111427174 A CN 111427174A CN 202010306667 A CN202010306667 A CN 202010306667A CN 111427174 A CN111427174 A CN 111427174A
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- panel
- test fixture
- slider
- lighting test
- bedplate
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
- G01M11/0278—Detecting defects of the object to be tested, e.g. scratches or dust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2601—Apparatus or methods therefor
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Analytical Chemistry (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a lighting test fixture and a test method for a display panel, wherein the lighting test fixture for the display panel comprises the following components: a bedplate for placing a panel to be tested; and the pressing plate is hinged with the bedplate in an openable and closable manner, the pressing plate comprises an observation part and at least one sliding block part, the sliding block part is arranged around the observation part, when the pressing plate is pressed with the bedplate, the observation part is overlapped with the display part of the panel to be detected, and the sliding block part faces the bedplate.
Description
Technical Field
The present invention relates to a testing fixture and a testing method, and more particularly, to a lighting testing fixture and a testing method for a display panel.
Background
During the manufacturing process of display panels (panel, such as O L ED and L CD), a plurality of inspection procedures are required, and one important inspection procedure is to Test the cut panel (Cell Test) to determine whether the panel has defects.
Taking an L CD panel as an example, a Test process is to input a Test signal to a liquid crystal panel to make pixels of the panel appear colors, and then, a defect detection device is used to observe whether each pixel is good one by one, which is called a lighting Test (L light-on Test). taking an O L ED panel as an example, a single existing lighting fixture is mostly used to perform the lighting Test, as shown in fig. 1 and 2, the existing lighting fixture 9 mainly comprises a platen 91 and a pressing plate 92, and after the pressing plate 92 presses a panel 8 to be tested on the platen 91, the ejector pins on the pressing plate 92 are electrically connected with the panel 8 to be tested, so as to light the panel 8 to be tested.
As shown in fig. 2, when the observation is performed by lighting, the edge of the observation portion 921 of the pressing plate 92 is close to the edge of the panel 8 to be observed, and when the light-emitting phenomenon at the edge of the panel 8 to be observed needs to be observed, because the observation device cannot be horizontally placed, the defects of the pixels at the edge of the panel 8 to be observed cannot be normally observed.
Therefore, the prior art has defects and needs to be improved urgently.
Disclosure of Invention
The invention provides a lighting test fixture and a test method for a display panel, which aim to solve the problem that the edge pixel defect of the panel in the prior art cannot be checked normally.
One aspect of the present invention provides a lighting test fixture for a display panel, including: a bedplate for placing a panel to be tested; and the pressing plate is hinged with the bedplate in an openable and closable manner, the pressing plate comprises an observation part and at least one sliding block part, the sliding block part is arranged around the observation part, when the pressing plate is pressed with the bedplate, the observation part is overlapped with the panel to be detected, and the sliding block part faces the bedplate.
In an embodiment of the present invention, the observation portion has four edges extending in two directions perpendicular to each other, respectively, and a sliding direction of the slider portion is parallel to one of the two directions.
In one embodiment of the invention, the slider portion comprises at least one longitudinal slider adjacent to at least one edge of the viewing portion extending in a longitudinal direction.
In an embodiment of the invention, the slider portion comprises at least one lateral slider adjacent to at least one edge of the viewing portion extending in a lateral direction.
In an embodiment of the present invention, the sliding block portion includes at least one longitudinal sliding block and at least one lateral sliding block, the longitudinal sliding block is adjacent to at least one edge of the observation portion extending along a longitudinal direction, and the lateral sliding block is adjacent to at least one edge of the observation portion extending along a lateral direction.
In an embodiment of the present invention, the at least one longitudinal slider includes a first longitudinal slider and a second longitudinal slider, the first longitudinal slider is adjacent to one of two edges of the observation portion extending in the longitudinal direction, and the second longitudinal slider is adjacent to the other one of the two edges of the observation portion extending in the longitudinal direction.
In an embodiment of the invention, the at least one lateral slider comprises a first lateral slider adjacent to one of two edges of the viewing portion extending in the lateral direction.
In an embodiment of the invention, the lighting test fixture of the display panel further includes at least one optical lens, and the optical lens is disposed on the pressing plate.
In an embodiment of the invention, the sliding block portion is a pulley assembly or a sliding rail assembly.
Another aspect of the present invention provides a lighting test method for a display panel, which applies the lighting test fixture for a display panel, and the method includes the steps of: placing a panel to be tested on the bedplate of the lighting test fixture of the display panel; pressing the pressing plate and the bedplate of the lighting test fixture of the display panel to enable the observation part to be overlapped with the panel to be tested, and enabling the sliding block part to face the bedplate; and sliding the sliding block part to enable the panel to be tested and the pressing plate to relatively and linearly move.
Compared with the prior art, the lighting test fixture and the test method for the display panel, provided by the invention, have the advantages that the slide block mechanism (the slide block part) is arranged on the press plate, when a certain edge position of the panel to be tested needs to be checked, the slide block can be moved to ensure that the edge pixel defect of the panel to be tested can be normally observed under the condition that the press plate and the bedplate are pressed together, and the problem that the edge pixel defect of the display panel can not be normally checked in the prior art can be solved.
Drawings
Fig. 1 is a schematic diagram of a conventional lighting test fixture for a display panel with a press plate lifted upward.
Fig. 2 is a schematic view illustrating that a pressing plate of the conventional lighting test fixture for a display panel in fig. 1 is pressed downward.
Fig. 3 is a schematic diagram illustrating the lifting of the pressing plate of the lighting test fixture for a display panel according to the first embodiment of the invention.
Fig. 4 is a schematic view illustrating the pressing of the pressing plate of the lighting test fixture for display panel according to the first embodiment of the invention.
Fig. 5 is a schematic diagram of the second embodiment of the present invention showing the pressing plate of the lighting test fixture for display panel lifted upward.
Fig. 6 is a schematic view illustrating the pressing of the pressing plate of the lighting test fixture for display panel according to the second embodiment of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. Furthermore, directional phrases used herein, such as, for example, upper, lower, top, bottom, front, rear, left, right, inner, outer, lateral, peripheral, central, horizontal, lateral, vertical, longitudinal, axial, radial, uppermost or lowermost, etc., refer only to the orientation of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Referring to fig. 3 and 4, a lighting test fixture for a display panel according to a first embodiment of the present invention includes a platen 1 and a pressing plate 2, where the platen 1 is used to place a panel 8 to be tested, such as an L CD or an O L ED panel, the pressing plate 2 is openably and closably hinged to the platen 1, the pressing plate 2 includes an observation portion 21 and at least one sliding block portion 22, the observation portion 21 is used for manually or mechanically observing the panel 8 to be tested, for example, the observation portion 21 may be composed of a polarizer, the sliding block portion 22 is capable of relatively moving two objects, for example, the sliding block portion 22 may be a pulley assembly or a sliding rail assembly, the sliding block portion 22 is located around the observation portion 21, when the pressing plate 2 is pressed against the platen 1, the observation portion 21 overlaps the panel 8 to be tested, and the sliding block portion 22 faces the platen 1.
It should be understood that, as shown in fig. 3 and 4, the panel 8 to be tested may have an electrical connection portion and a display portion, the electrical connection portion may input test signals to light up pixels of the display portion for testing, and the arrangement of the electrical connection portion and the display portion is understood by those skilled in the art and will not be described herein again; the pressing plate 2 may further include a probe portion, the probe portion is located around the observation portion 21, and the arrangement manner of the probe portion is understood by those skilled in the art and is not described herein again. When the pressing plate 2 is pressed against the platen 1, the probe portion is electrically connected to the electrical connection portion of the panel 8 to be tested, so as to input a test signal, so that the pixels of the display portion are colored, and the observation portion 21 and the display portion of the panel 8 to be tested may be overlapped with each other, for example: the observation portion and the display portion are in contact with each other so as to observe whether or not the light emitting function of each pixel is good one by one.
In one embodiment, as shown in fig. 3 and 4, the observation portion 21 is rectangular, for example: the observation portion 21 has four edges extending in two directions perpendicular to each other, for example: two opposite edges of the four edges extend in a longitudinal direction, the other two opposite edges of the four edges extend in a lateral direction, and a sliding direction of the slider portion 22 is parallel to one of the two directions. Therefore, when a certain edge position of the panel 8 to be tested needs to be checked, the edge pixels of the panel 8 to be tested can be moved for observation by moving the sliding block part 22, and the problem that the edge pixel defects of the display panel cannot be normally checked can be avoided.
Alternatively, as shown in fig. 3 and 4, the sliding block portion 22 may include at least one longitudinal sliding block adjacent to at least one edge of the observation portion 21 extending along the longitudinal direction, such as: two longitudinal sliders are provided adjacent to two opposite edges of the observation portion 21 extending in the longitudinal direction. Therefore, when a certain longitudinal edge position of the panel to be detected 8 needs to be checked, the longitudinal sliding block can be moved, so that the edge pixels of the panel to be detected 8 can be moved longitudinally to facilitate observation, and the phenomenon that the longitudinal edge pixel defects of the display panel cannot be checked normally can be avoided.
Alternatively, the slider portion 22 may comprise at least one lateral slider adjacent to at least one edge of the viewing portion 21 extending in the lateral direction, for example: a lateral slider is arranged adjacent to the upper or lower edge of the viewing portion 21 extending in the lateral direction. Therefore, when a certain lateral edge position of the panel to be detected 8 needs to be checked, the lateral sliding block can be moved to enable the edge pixel of the panel to be detected 8 to move laterally so as to facilitate observation, and the situation that the lateral edge pixel defect of the display panel cannot be normally checked can be avoided.
Referring to fig. 5 and 6, the slider portion 22 of the lighting test fixture for a display panel according to the second embodiment of the present invention includes at least one longitudinal slider and at least one lateral slider, the longitudinal slider is adjacent to at least one edge of the observation portion 21 extending along the longitudinal direction, and the lateral slider is adjacent to at least one edge of the observation portion 21 extending along the lateral direction. Therefore, when the longitudinal or lateral edge position of the panel 8 to be detected needs to be checked, the longitudinal or lateral slider can be moved, so that the edge pixels of the panel 8 to be detected can be moved longitudinally or laterally for observation, and the problem that the longitudinal and lateral edge pixel defects of the display panel cannot be normally checked can be avoided.
For example, as shown in fig. 5 and 6, the at least one longitudinal slider includes a first longitudinal slider 22a and a second longitudinal slider 22b, the first longitudinal slider 22a may be adjacent to one (e.g., left) of two edges of the observation portion 21 extending in the longitudinal direction, and the second longitudinal slider 22b may be adjacent to the other (e.g., right) of the two edges of the observation portion 21 extending in the longitudinal direction; in addition, the at least one lateral slider may include a first lateral slider 22c, and the first lateral slider 22c may be adjacent to one of two edges (e.g., an upper edge or a lower edge) of the observation portion 21 extending along the lateral direction, but not limited thereto.
In an embodiment, as shown in fig. 4 and 6, the lighting test fixture of the display panel further includes at least one optical lens 3, for example: a convex lens having a magnifying function, and the optical lens 3 may be disposed at a suitable position on the platen 2, for example: in the vicinity of at least one of the four edges of the observation portion 22, for example: and the left edge, etc., but not limited thereto, so as to assist in observing whether the pixels at the edge (e.g., the edge of the display portion) or other positions of the panel 8 under test are good or not.
Another aspect of the present invention is to provide a lighting test method for a display panel, which is applied to the above-mentioned embodiments of the lighting test fixture for a display panel, and is exemplified as follows, but not limited thereto.
As shown in fig. 5 and 6, the method embodiment may include the steps of: placing a panel to be tested 8 on the bedplate 1 of the lighting test fixture embodiment of the display panel; pressing the pressing plate 2 and the bedplate 1 of the lighting test fixture of the display panel to ensure that the observation part 21 is overlapped with the panel to be tested (such as the display part), and the slide block part 22 faces the bedplate 1; and sliding the slider part 22 to move the panel 8 to be measured and the pressing plate 2 linearly relatively.
It should be understood that, in order to allow the panel under test 8 and the pressing plate 2 to be relatively moved by the slider portion 22, the slider portion 22 and the panel under test 8 or the panel under test 8 and the pressing plate 2 have an appropriate physical relationship, such as: contact or change position relative to each other, etc., as will be appreciated by those skilled in the art.
According to the lighting test fixture and the test method for the display panel, the sliding block mechanism (the sliding block part) is arranged on the pressing plate, when a certain edge position of the panel to be tested needs to be checked, the sliding block can be moved, so that the edge pixel defect of the panel to be tested can be normally observed under the condition that the pressing plate and the bedplate are pressed, and the problem that the edge pixel defect of the panel cannot be normally checked in the prior art can be solved.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. Rather, modifications and equivalent arrangements included within the spirit and scope of the claims are included within the scope of the invention.
Claims (10)
1. The utility model provides a display panel test fixture that lights a lamp which characterized in that: the method comprises the following steps:
a bedplate for placing a panel to be tested; and
the pressing plate is hinged with the bedplate in an openable and closable manner and comprises an observation part and at least one sliding block part, the sliding block part is arranged around the observation part, when the pressing plate is pressed with the bedplate, the observation part is overlapped with the panel to be detected, and the sliding block part faces the bedplate.
2. The lighting test fixture for display panels according to claim 1, wherein: the observation portion has four edges extending in two directions perpendicular to each other, respectively, and a sliding direction of the slider portion is parallel to one of the two directions.
3. The lighting test fixture for display panels according to claim 2, wherein: the slider portion includes at least one longitudinal slider adjacent at least one edge of the viewing portion extending in a longitudinal direction.
4. The lighting test fixture for display panels according to claim 2, wherein: the slider portion includes at least one lateral slider adjacent to at least one edge of the viewing portion extending in a lateral direction.
5. The lighting test fixture for display panels according to claim 2, wherein: the slider portion includes at least one longitudinal slider and at least one lateral slider, the longitudinal slider is adjacent to the observation portion along at least one edge of a longitudinal extension, the lateral slider is adjacent to the observation portion along at least one edge of a lateral extension.
6. The lighting test fixture for display panels according to claim 3 or 5, wherein: the at least one longitudinal slide includes a first longitudinal slide adjacent one of the longitudinally extending edges of the viewing portion and a second longitudinal slide adjacent the other of the longitudinally extending edges of the viewing portion.
7. The lighting test fixture for display panels according to claim 4 or 5, wherein: the at least one lateral slider includes a first lateral slider adjacent one of two edges of the viewing portion extending in the lateral direction.
8. The lighting test fixture for display panels according to claim 1, wherein: the optical lens is arranged on the pressing plate.
9. The lighting test fixture for display panels according to claim 1, wherein: the sliding block part is a pulley component or a sliding rail component.
10. A lighting test method for a display panel, which applies the lighting test fixture for a display panel according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
placing a panel to be tested on the bedplate of the lighting test fixture of the display panel;
pressing the pressing plate and the bedplate of the lighting test fixture of the display panel to enable the observation part to be overlapped with the panel to be tested, and enabling the sliding block part to face the bedplate; and
and sliding the sliding block part to enable the panel to be tested and the pressing plate to relatively and linearly move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010306667.XA CN111427174B (en) | 2020-04-17 | 2020-04-17 | Lighting test fixture and test method for display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010306667.XA CN111427174B (en) | 2020-04-17 | 2020-04-17 | Lighting test fixture and test method for display panel |
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| Publication Number | Publication Date |
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| CN111427174A true CN111427174A (en) | 2020-07-17 |
| CN111427174B CN111427174B (en) | 2022-09-27 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750761A (en) * | 2008-12-01 | 2010-06-23 | 由田新技股份有限公司 | Panel pressing detection device and pressing mechanism |
| CN102998823A (en) * | 2012-12-06 | 2013-03-27 | 京东方科技集团股份有限公司 | Polarizer supporting part for lighting check equipment and lighting check equipment |
| CN206411360U (en) * | 2016-12-23 | 2017-08-15 | 苏州凌云视界智能设备有限责任公司 | The automatic lighting jig of liquid crystal display |
| CN108614368A (en) * | 2018-05-09 | 2018-10-02 | 京东方科技集团股份有限公司 | A kind of lighting jig |
| CN108873412A (en) * | 2018-07-24 | 2018-11-23 | 武汉华星光电技术有限公司 | A kind of lighting jig for detection panel |
| CN208459718U (en) * | 2018-08-08 | 2019-02-01 | 苏州凌云视界智能设备有限责任公司 | A kind of general LCD mould group lighting automatic crimping mechanism |
-
2020
- 2020-04-17 CN CN202010306667.XA patent/CN111427174B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750761A (en) * | 2008-12-01 | 2010-06-23 | 由田新技股份有限公司 | Panel pressing detection device and pressing mechanism |
| CN102998823A (en) * | 2012-12-06 | 2013-03-27 | 京东方科技集团股份有限公司 | Polarizer supporting part for lighting check equipment and lighting check equipment |
| CN206411360U (en) * | 2016-12-23 | 2017-08-15 | 苏州凌云视界智能设备有限责任公司 | The automatic lighting jig of liquid crystal display |
| CN108614368A (en) * | 2018-05-09 | 2018-10-02 | 京东方科技集团股份有限公司 | A kind of lighting jig |
| CN108873412A (en) * | 2018-07-24 | 2018-11-23 | 武汉华星光电技术有限公司 | A kind of lighting jig for detection panel |
| CN208459718U (en) * | 2018-08-08 | 2019-02-01 | 苏州凌云视界智能设备有限责任公司 | A kind of general LCD mould group lighting automatic crimping mechanism |
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| Publication number | Publication date |
|---|---|
| CN111427174B (en) | 2022-09-27 |
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