CN100437217C - Pressure detector for liquid crystal display panel - Google Patents
Pressure detector for liquid crystal display panel Download PDFInfo
- Publication number
- CN100437217C CN100437217C CNB2004100279302A CN200410027930A CN100437217C CN 100437217 C CN100437217 C CN 100437217C CN B2004100279302 A CNB2004100279302 A CN B2004100279302A CN 200410027930 A CN200410027930 A CN 200410027930A CN 100437217 C CN100437217 C CN 100437217C
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- Prior art keywords
- pressure
- roller
- detecting device
- display panels
- handle
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Abstract
The present invention discloses a pressure detecting device which is applied to a liquid crystal display panel. The pressure detecting device comprises a roller and a fixing mechanism, wherein the roller is supported by the fixing mechanism, and the fixing mechanism can roll around the axle center of the roller on the liquid crystal display panel. Because the pressure detecting device which is applied to the liquid crystal display panel of the present invention adopts a mode of rolling to detect the pressure points on the liquid crystal display panel, and the length of the roller can be regulated according to practical situations, the pressure points can be detected rapidly and accurately. Thus, the detection efficiency is improved.
Description
[technical field]
The invention relates to a kind of pressure-detecting device, particularly about a kind of pressure-detecting device that is applied to display panels.
[background technology]
That liquid crystal indicator has is frivolous, power consumption low and advantage such as digitizing, more and more is subjected to widespread use at present on market.Liquid crystal indicator generally comprises a display panels, the electrode layer that it has two parallel transparent substrates, form respectively at the inside surface of two substrates and be encapsulated in liquid crystal between this two substrate.
This electrode layer comprises active-matrix that is formed on a substrate inside surface and the transparent common electrode of ITO (Indium Tin Oxide, tin indium oxide) that is formed on another substrate inside surface.This active-matrix is made up of the thin film transistor (TFT) (Thin Film Transistor) of a plurality of proper alignment, and each thin film transistor (TFT) all is connected to a signal wire (Signal line) and a grid line (Gate line).This film crystal also connects a pixel electrode.By the common control of signal wire and grid line, make this thin film transistor (TFT) apply a voltage to this pixel electrode, cooperate common electrode to form the electric field that the control liquid crystal molecule reverses, with whether passing through of control light, reach the purpose of demonstration.
For reaching the higher display effect of liquid crystal indicator, subtilizedization of making of its inner electrode layer.Yet in view of the influence of the complexity and the various process conditions of present scientific and technological level and processing procedure, the making yield of liquid crystal indicator is not 100%, and the point defect on the display panels promptly is to cause one of low problem of yield.
The point defect main reason is display panels inner electrode layer circuit failure, and it mainly is divided into two kinds of dominance and recessive point defects.The dominance point defect is that this respective pixel opens circuit or short circuit fully, causes the normal bright or normal dark defective that the liquid crystal one's share of expenses for a joint undertaking can't show with electric field driven in this pixel.Recessive point defect then is the bad or false contact of electrode layer circuit contacts, or has foreign matter on the ITO, makes the defective that firm produced display panels with the naked eye can not be found when product examine.This defective is called spot pressure again.Though spot pressure generally can not be found with naked eyes when display panels just creates, but if ignore therefrom, allow this class have the display panels of spot pressure to come into operation, then under certain condition, as collision, touch LCD display panels etc. then cause the interior potential spot pressure of this display panels to become the dominance point defect very soon, cause display quality seriously to descend.Therefore need before liquid crystal indicator dispatches from the factory, carry out spot pressure and detect, to get rid of defective products.
The method that detects spot pressure in the display panels in the prior art liquid crystal indicator manufacturing process is to adopt free-hand extruding.Promptly open the power supply of liquid crystal indicator, adjusting it is normal bright or normal dark state, again with finger squeezed fluid LCD panel display surface.When extruding one spot pressure and after removing pressure, the circuit defect of this spot pressure correspondence is stressed and promptly displays, or ITO goes up foreign matter and be stressed and damage insulation course between the conductive material, causes leaky to take place.Generally speaking, after removing pressure, the circuit of spot pressure correspondence or the ITO of electric leakage can play pendulum, and can find that this point has scintillation when naked eyes are watched the spot pressure of this display panels, and this point of deducibility is a spot pressure thus.
In addition, because the bad or false contact of electrode layer circuit contacts also may cause this area circuit can not work fully, so some normal bright or normal dark dominance point defects also may be spot pressures.Detection method for this class spot pressure is also as noted above.
Yet prior art adopts the method efficient of free-hand squeezed fluid LCD panel low, needs the display surface with finger extruding whole liquid crystal display panel, and length consuming time, particularly large scale liquid crystal display panel spot pressure context of detection detect more difficult; And finger is too soft, and squish area is big, and it is not enough usually and be difficult to detect spot pressure therefore to be applied to pressure on the display panels, causes omission.
[summary of the invention]
In order to overcome the inefficient defective of spot pressure that prior art detects display panels, but the invention provides a kind of pressure-detecting device of spot pressure of efficient detection display panels.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of pressure-detecting device that is applied to display panels is provided, it comprises a roller and a fixing structure, this fixing structure comprises one handle, this fixing structure supports this roller, and this handle promotes this roller and rolls around the roller axle center on display panels.
Compare with prior art, the present invention has the following advantages: adopt the roll extrusion mode to detect display panels upward pressure point because the present invention is applied to the pressure-detecting device of display panels, this roller length can be regulated according to actual conditions, therefore can be fast and detect spot pressure exactly, improve detection efficiency.
[description of drawings]
Fig. 1 is the three-dimensional exploded view that the present invention is applied to pressure-detecting device first embodiment of display panels.
Fig. 2 is the three-dimensional assembly diagram that is applied to the pressure-detecting device of display panels among Fig. 1.
Fig. 3 is the planimetric map of roller shown in Fig. 1.
Fig. 4 is the synoptic diagram of the afterbody of handle shown in Fig. 1.
Fig. 5 is the front view (FV) of axle shown in Fig. 1.
Fig. 6 is the three-dimensional assembly diagram that the present invention is applied to pressure-detecting device second embodiment of display panels.
Fig. 7 is the three-dimensional assembly diagram that the present invention is applied to pressure-detecting device the 3rd embodiment of display panels.
Fig. 8 is the three-dimensional assembly diagram that the present invention is applied to pressure-detecting device the 4th embodiment of display panels.
Fig. 9 is the three-dimensional assembly diagram that the present invention is applied to pressure-detecting device the 5th embodiment of display panels.
[embodiment]
Please together consulting Fig. 1 and Fig. 2, is respectively three-dimensional exploded view and three-dimensional assembly diagram that the present invention is applied to pressure-detecting device first embodiment of display panels.This pressure-detecting device 1 comprises a roller 11 and a fixing structure 12.This roller 11 comprises a main body 111 and long sector 112 on main body 111, and place, the axle center part of this roller 11 is through holes 113.This fixing structure 12 comprises one with the adaptive axle 123 of this through hole 113, is set in the bearing 122 at this 123 middle part and is fixed in this bearing 122 and perpendicular to this handle of 123 121.The axle 123 of this fixing structure 12 is fixed in the through hole 113 in this roller axle center, and this axle 123 can rotate in bearing 122.
In conjunction with consulting Fig. 1 and Fig. 5, these axle 123 middle parts have a cam 1231, and 11 fens two parts of this roller are set in cam 1231 two ends respectively.This axle 123 stretches out this roller 11 two ends, and extension has tap 1232, and nut 124 locks respectively and 123 have the two ends of tap 1232 at this, fixes and keeps this roller 11 at an ad-hoc location thereby constitute a barrier structure.
This bearing 122 comprises the closing component structure that a bearing heart 1221 and is made of the two falcate binding blocks 1222,1223 that separate.This bearing heart 1221 is fixed on this cam of 123 1231, and its inner ring is fixed on cam 1231 and outer ring (indicate) is rotatable.This this bearing heart 1221 of binding block 1222,1223 falcate respective outer side edges, this bearing heart 1221 of clamping also adopts nut 1224 that this two binding block 1222,1223 is tightly locked together.
These handle 121 two ends have the screw hole (figure does not show) in tap 1211, one ends screw-in binding block 1223 outsides and handle 121 and bearing 122 are fixed, and handle 121 is perpendicular to this roller axle center.In conjunction with consulting Fig. 1 and Fig. 4, these handle 121 other ends utilize tap 1211 to be fixed with a rod shaped probe 125.This rod shaped probe 125 has a stiff end 1251 and a working end 1252.This stiff end 1251 is bigger, and has screw hole (not indicating) so that handle 121 1 ends screw in, and working end 1252 is tapereds, and its end has an inclination tangent plane 1253.
In conjunction with consulting Fig. 1 and Fig. 3, this sector 112 is regular be distributed in roller 11 main bodys 111 axially on, be divided into a plurality of groups, have a plurality of blades 112 and constitute a circumference in every group.Every group of blade 112 interval, size and shape unanimity.This bearing 122 is low than this blade 112.
This roller 11 all adopts hard plastic cement to make with this rod shaped probe 125, and frame is held mechanism 12 and then adopted hard material such as iron, steel, aluminium, rigid plastic, organic substance or alloy etc. to make.
When utilizing this pressure-detecting device 1 to survey the spot pressure of display panels (figure does not show), be that roller 11 is kept flat to the display surface of this display panels, the user holds handle 121, promote this roller 11 and apply certain pressure on display panels, can allow roller 11 on display panels, roll around the rotation of roller axle center.Because pressure, whether the blade 112 squeezed fluid LCD panels on the roller 11 after roller 11 rolls across, can find to have spot pressure to exist.Because of roller 11 possesses certain-length, so its rolling wider range, the display panels area that no matter need detect is much, also can measure spot pressure convenient, fast and exactly, can omission.And this pressure-detecting device 1 is simple in structure, and cost of manufacture is low.In addition, roller 11, handle 121 and rod shaped probe 125 are all detachable in the pressure-detecting device 1, convenient adopt suitable accessory according to actual conditions, or the replacing of accessory when damaging.
Whether in addition, when bright spot on the needs detection display panels or dim spot, can utilize tangent plane 1253 these points of extruding of rod shaped probe 125, be spot pressure thereby conveniently measure it.
The present invention also provides following change embodiment:
See also Fig. 6, the present invention also provides second embodiment of the pressure-detecting device that is applied to display panels.This pressure-detecting device 2 and pressure-detecting device 1 difference are to form a plurality of intervals, size and the consistent flange 132 of shape on the main body 131 of roller 13, substitute the blade 112 of pressure-detecting device 1.
See also Fig. 7, the present invention also provides the 3rd embodiment of the pressure-detecting device that is applied to display panels.This pressure-detecting device 3 and pressure-detecting device 2 are different, and to be in roller 14 are right cylinders.
See also Fig. 8, the present invention also provides the 4th embodiment of the pressure-detecting device that is applied to display panels.This pressure-detecting device 4 is that with pressure-detecting device 1 difference this roller 14 is solid constructions, and its center, two ends respectively has an axial ledge 141.This fixing structure 15 is prong like, has one handle 151 and two yokes 153, and these two yokes, 153 ends have bearing 152 respectively and are sheathed on roller two end boss 141, and making it can be by these two yokes, 153 fixing and rotatable.
See also Fig. 9, the present invention also provides the 5th embodiment of the pressure-detecting device that is applied to display panels.This pressure-detecting device 5 is that with pressure-detecting device 4 differences this fixing structure 16 is another prong like, have one handle 161 and two yokes 163, these two yokes, 163 ends have bearing 162 respectively and are set on 14 liang of end boss 141 of roller, and making it can be by these two yokes, 163 fixing and rotatable.This two yoke 163 can be dismantled mutually, is beneficial to change roller 14.
The present invention also provides the 6th embodiment of the pressure-detecting device that is applied to display panels.This pressure-detecting device and pressure-detecting device 1 to 3 difference are that the axle of its fixing structure can rotate in the roller through hole, and handle and bearing fixing are at this middle part, axle center.
The present invention also provides the 7th embodiment of the pressure-detecting device that is applied to display panels.This pressure-detecting device and pressure-detecting device 1 to 3 difference are that roller is an integrative-structure, its middle part has annular groove, fixing structure is one to have the club shaped structure of handle, and the bearing holder (housing, cover) of handle one end is located at this groove, and its part that is set in groove is lower than this depth of groove.
The present invention also provides the 8th embodiment of the pressure-detecting device that is applied to display panels.This pressure-detecting device and pressure-detecting device 1 to 3 difference is the handle of this fixing structure and this bearing is one-body molded or handle is welded on this bearing.
Claims (15)
1. pressure-detecting device that is applied to display panels, it is characterized in that: this pressure-detecting device comprises a roller and a fixing structure, this fixing structure comprises one handle, this fixing structure supports this roller, and this handle promotes this roller and rolls around the roller axle center on display panels.
2. the pressure-detecting device that is applied to display panels as claimed in claim 1, it is characterized in that: this roller axle center has a through hole, this fixing structure further comprises one with the adaptive axle of this through hole be set in the bearing at this middle part, and this bearing is perpendicular to this handle.
3. the pressure-detecting device that is applied to display panels as claimed in claim 2 is characterized in that: the axle of this fixing structure is fixed on the through hole in this roller axle center, and this axle can rotate in bearing.
4. the pressure-detecting device that is applied to display panels as claimed in claim 3 is characterized in that: the handle of this fixing structure and this bearing are one-body molded.
5. the pressure-detecting device that is applied to display panels as claimed in claim 3 is characterized in that: the handle of this fixing structure is welded on this bearing.
6. the pressure-detecting device that is applied to display panels as claimed in claim 3 is characterized in that: the handle of this fixing structure adopts screw structural to be fixed on this bearing.
7. the pressure-detecting device that is applied to display panels as claimed in claim 2 is characterized in that: the axle of this fixing structure can rotate in the through hole in this roller axle center, and handle and bearing fixing are at this middle part, and the axle two ends respectively are provided with a roller.
8. the pressure-detecting device that is applied to display panels as claimed in claim 3 is characterized in that: this shaft extension goes out this roller two ends, and two barrier structures are separately positioned on these two ends to keep roller at an ad-hoc location.
9. the pressure-detecting device that is applied to display panels as claimed in claim 1, it is characterized in that: there is an annular groove at this roller middle part, this fixing structure is a club shaped structure, and handle one end is set in this annular groove rotationally, and it is set in annular groove and partly is lower than this depth of groove.
10. the pressure-detecting device that is applied to display panels as claimed in claim 1, it is characterized in that: this center, roller two ends respectively has an axial ledge, this fixing structure further comprises the prong like that is connected with handle, two yoke ends of this prong like are set in respectively on roller two end boss, and making it can be by this two yokes fixing and rotatable.
11. the pressure-detecting device that is applied to display panels as claimed in claim 1 is characterized in that: the handle one end frame of this fixing structure is held this roller, and the other end is the taper structure, and the end of this taper structure has a tangent plane.
12. the pressure-detecting device that is applied to display panels as claimed in claim 11 is characterized in that: this taper structure is hard plastic material.
13. the pressure-detecting device that is applied to display panels as claimed in claim 1 is characterized in that: the sector of axially going up arrangement a plurality of groups of intervals, size and shape unanimities of this roller, every group of blade constitutes a circumference.
14. the pressure-detecting device that is applied to display panels as claimed in claim 1 is characterized in that: the flange of axially going up arrangement a plurality of intervals, size and shape unanimity of this roller.
15. the pressure-detecting device that is applied to display panels as claimed in claim 1 is characterized in that: this roller is hard plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100279302A CN100437217C (en) | 2004-06-28 | 2004-06-28 | Pressure detector for liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100279302A CN100437217C (en) | 2004-06-28 | 2004-06-28 | Pressure detector for liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1716003A CN1716003A (en) | 2006-01-04 |
| CN100437217C true CN100437217C (en) | 2008-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100279302A Expired - Fee Related CN100437217C (en) | 2004-06-28 | 2004-06-28 | Pressure detector for liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100437217C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470277B (en) * | 2007-12-27 | 2011-03-23 | 鸿富锦精密工业（深圳）有限公司 | Liquid crystal panel test system and method |
| CN111829880A (en) * | 2020-07-28 | 2020-10-27 | 惠科股份有限公司 | Rolling test device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06118360A (en) * | 1992-10-09 | 1994-04-28 | Sharp Corp | Pressure device |
| US5991002A (en) * | 1997-10-02 | 1999-11-23 | Casio Computer Co., Ltd. | Method for correcting a defect in a liquid crystal panel |
| CN2408973Y (en) * | 2000-02-02 | 2000-12-06 | 赖升滨 | Double-head roller |
| CN2451351Y (en) * | 2000-11-01 | 2001-10-03 | 柏丽佳 | Squeegee |
| CN2791686Y (en) * | 2004-07-13 | 2006-06-28 | 鸿富锦精密工业（深圳）有限公司 | Detecting apparatus for liquid crystal displaying panel |
-
2004
- 2004-06-28 CN CNB2004100279302A patent/CN100437217C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06118360A (en) * | 1992-10-09 | 1994-04-28 | Sharp Corp | Pressure device |
| US5991002A (en) * | 1997-10-02 | 1999-11-23 | Casio Computer Co., Ltd. | Method for correcting a defect in a liquid crystal panel |
| CN2408973Y (en) * | 2000-02-02 | 2000-12-06 | 赖升滨 | Double-head roller |
| CN2451351Y (en) * | 2000-11-01 | 2001-10-03 | 柏丽佳 | Squeegee |
| CN2791686Y (en) * | 2004-07-13 | 2006-06-28 | 鸿富锦精密工业（深圳）有限公司 | Detecting apparatus for liquid crystal displaying panel |
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| Publication number | Publication date |
|---|---|
| CN1716003A (en) | 2006-01-04 |
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