CN114063327A - Display screen testing device and display screen testing method - Google Patents
Display screen testing device and display screen testing method Download PDFInfo
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- CN114063327A CN114063327A CN202111253934.2A CN202111253934A CN114063327A CN 114063327 A CN114063327 A CN 114063327A CN 202111253934 A CN202111253934 A CN 202111253934A CN 114063327 A CN114063327 A CN 114063327A
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- 238000012360 testing method Methods 0.000 title claims abstract description 119
- 230000035945 sensitivity Effects 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000010287 polarization Effects 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention relates to the technical field of display screen testing, and discloses a display screen testing device and a display screen testing method, which are used for testing the stress sensitivity of a display screen, wherein the display screen testing device comprises: a support table; the force application pieces are arranged on the support table, connected to the test point positions on the display screen and used for adjusting the heights of the test point positions to twist the display screen; and the brightness detector is arranged above the supporting table and used for detecting the brightness of the display screen before and after twisting. The display screen testing device utilizes the force application part to connect the testing point positions on the display screen so as to twist the display screen, simulates the stress condition of the display screen, and carries out brightness detection on the display screen before and after twisting through the brightness detector, so that the black brightness uniformity of the display screen under different stress conditions is obtained, and the black brightness uniformity is used for quantifying the stress sensitivity of the display screen. The display screen testing device is simple in structure and easy and convenient to operate, and the technical problem that a quantitative testing method for stress sensitivity of the display screen is lacked in the prior art is effectively solved.
Description
Technical Field
The invention relates to the technical field of display screen testing, in particular to a display screen testing device and a display screen testing method.
Background
The black state brightness uniformity is an important parameter for the display screen to show the display quality, but the glass substrate of the liquid crystal display screen is very sensitive to external force, and a double refraction effect can be generated when the glass substrate is locally stressed, so that the polarization state of light penetrating through the display screen is changed, the local light leakage of the display screen is caused, the black state brightness uniformity of the display screen is reduced, and the display quality is deteriorated. In the actual production and assembly process of the TFT display module, the backlight/cover plate and other materials are inevitably contacted, and the external force is inevitable. In actual technical development, a quantitative test method is lacked for the uniformity of black state brightness when a display screen is stressed, and the stress sensitivity of the display screen is difficult to quantify.
Disclosure of Invention
In view of this, the invention provides a display screen testing device and a display screen testing method, so as to solve the technical problem that a quantitative testing method for stress sensitivity of a display screen is lacked in the prior art.
In a first aspect, an embodiment of the present invention provides a display screen testing apparatus, configured to test stress sensitivity of a display screen, where the display screen testing apparatus includes:
a support table;
the force application pieces are arranged on the support table, connected to test point positions on the display screen and used for adjusting the heights of the test point positions to twist the display screen;
and the brightness detector is arranged above the supporting table and used for detecting the brightness of the display screen before and after twisting.
In one embodiment, the display screen comprises a display area and a non-display area adjacent to the display area, and the test point is arranged in the non-display area; the force application pieces and the test point locations are multiple in number, and the multiple test point locations are respectively arranged at four corners of the non-display area.
In one embodiment, the force applying member includes a first clamping portion and a second clamping portion rotatably connected to the first clamping portion, and the first clamping portion and the second clamping portion are respectively used for abutting against the bottom and the top of the display screen;
display screen testing arrangement still includes the altitude mixture control subassembly, the altitude mixture control subassembly is including locating base, connecting piece and first locating part on the brace table, first locating part connect in the connecting piece can drive the connecting piece is followed the perpendicular to the first direction of brace table slides, first clamping part fixed connection in the connecting piece is kept away from the one end of base, the second clamping part articulate in the connecting piece is kept away from the one end of base.
In an embodiment, the force application member further comprises a fixing portion, a first arm, a second arm and a third arm which are sequentially connected, the fixing portion is fixedly connected to the connecting member, two ends of the first arm are respectively hinged to the fixing portion and the second arm, two ends of the third arm are respectively hinged to the second arm and the connecting member, and the second clamping portion is convexly arranged at one end of the third arm.
In one embodiment, the base includes a first base vertically connected to the support table and a second base vertically connected to the first base, the connecting member is L-shaped and includes a first connecting portion and a second connecting portion connected to each other, the first connecting portion is slidably connected to the first base along the first direction, and the first clamping portion and the second clamping portion are connected to the second connecting portion;
the second base is provided with a limiting hole, and the height adjusting assembly further comprises a second limiting part which is telescopically inserted into the limiting hole and used for controlling the first connecting part to move along the first direction.
In an embodiment, a clamping surface of the first clamping portion and the second clamping portion facing the display screen is one of a dotted circle, a dotted polygon and a long strip.
In one embodiment, the display screen testing device further comprises a light shielding member;
the light shielding member is a black tape covering the non-display region, or
The shading piece is a black rubber plate and is arranged above the display screen and used for shading the non-display area, and the black rubber plate is provided with a display hole used for exposing the display area.
In an embodiment, the display screen testing apparatus further includes a backlight disposed between the supporting platform and the display screen.
According to the display screen testing device provided by the invention, the force application part is connected with the testing point positions on the display screen, the force application part can be used for twisting the display screen by adjusting the height of the testing point positions, the stress condition of the display screen is simulated, and the brightness detection is carried out on the display screen before and after twisting through the brightness detector, so that the black brightness uniformity of the display screen under different stress conditions is obtained, and the black brightness uniformity is used for quantifying the stress sensitivity of the display screen. The display screen testing device adopting the structural design has the advantages of simple structure and simplicity and convenience in operation, and effectively solves the technical problem that a quantitative testing method for the stress sensitivity of the display screen is lacked in the prior art.
In a second aspect, an embodiment of the present application further provides a display screen testing method, where the display screen testing apparatus according to any embodiment of the first aspect is adopted, and the display screen testing method includes:
the force application pieces are respectively connected to a plurality of test point positions of the display screen;
adjusting the force application members to the same horizontal plane, and detecting a first brightness parameter of the display screen;
and sequentially adjusting the force application members to enable the adjusted force application members to have a preset adjustment distance relative to the horizontal plane and the rest force application members to be located on the horizontal plane, and detecting a second brightness parameter of the display screen after adjustment so as to analyze the stress sensitivity of the display screen according to the first brightness parameter, the preset adjustment distance and the second brightness parameter.
In an embodiment, the preset adjustment distance at least includes a first preset distance and a second preset distance.
According to the display screen testing method, the display screen can be twisted by adjusting the force application piece to be in the initial state or the stress state, the brightness of the display screen in the initial state and the stress state is detected by the brightness detector, the black brightness uniformity of the display screen in different stress states is obtained, and the stress sensitivity of the display screen is correspondingly quantized. The method for testing the stress sensitivity of the display screen is simple and convenient to operate, a quantitative testing method for the stress sensitivity of the display screen is provided, and the technical problem that the quantitative testing method for the stress sensitivity of the display screen is lacked in the prior art is effectively solved.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a display screen testing apparatus according to an embodiment of the present invention;
fig. 2 is a top view of a display screen testing apparatus and a display screen according to an embodiment of the invention;
FIG. 3 is a perspective view of the height adjustment assembly and the force application member of the display screen testing apparatus shown in FIG. 1;
FIG. 4 is a perspective view of the height adjustment assembly and force application member of FIG. 3 at another angle;
FIG. 5 is a schematic perspective view of a second clamping portion and a third arm of the display screen testing apparatus shown in FIG. 1;
fig. 6 is a flowchart of a display screen testing method according to an embodiment of the present invention.
The designations in the figures mean:
100. a display screen testing device;
200. a display screen; 201. a display area; 202. a non-display area; 203. testing point positions;
10. a support table;
20. a force application member; 21. a first clamping portion; 22. a second clamping portion; 23. a fixed part; 24. a first arm; 25. a second arm; 251. a pressing part; 26. a third arm;
30. a height adjustment assembly; 31. a base; 311. a first base; 312. a second base; 32. a connecting member; 321. a first connection portion; 322. a second connecting portion; 33. a first limit piece; 34. a second limiting member;
40. and (7) mounting a seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, which are examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Embodiments of the first aspect of the present application provide a display screen testing apparatus, configured to test black state luminance uniformity of a display screen under different stress conditions, so as to quantitatively test stress sensitivity of the display screen.
Referring to fig. 1 to 5, in an embodiment of the present application, a display screen testing apparatus 100 includes a supporting platform 10, a plurality of force applying members 20, and a brightness detector. The plurality of force applying members 20 are all disposed on the support platform 10, and each force applying member 20 is connected to the test point 203 on the display screen 200, and is used for adjusting the height of the test point 203 to twist the display screen 200. The luminance detector is provided above the support table 10, and detects the luminance of the display panel 200 before and after twisting.
In the present embodiment, please refer to fig. 2, the display screen 200 includes a display area 201 and a non-display area 202 adjacent to the display area 201, and the test point 203 is disposed in the non-display area 202; the number of the force application members 20 and the number of the test sites 203 are four, and the four test sites 203 are respectively disposed at four corners of the non-display area 202. Because the test point location 203 is located in the non-display area 202, the acting point of the force application member 20 is located in the non-display area 202, the display area 201 cannot be shielded, the brightness detector can detect the black brightness uniformity of the whole display area 201 of the display screen 200, the omission of the test process is avoided, and the comprehensiveness of the test range and the accuracy of the test result are improved.
It is understood that the number of force application members 20 and test sites 203 may be other in other embodiments of the present application. For example, the number of the force applying members 20 and the test sites 203 may be two, three, or more than four, which is not limited herein. Accordingly, the test site locations 203 are all located within the non-display area 202.
In this embodiment, each force application member 20 can be adjusted in installation position according to the size of the display screen 200 to be tested. It will be appreciated that each force applying member 20 may be slidably attached to the support table 10 or removably attached to the support table 10 by fasteners such as screws, but is not limited thereto.
In the present embodiment, the brightness detector is a luminance detector 1900 (not shown in the figure), which can directly read the brightness uniformity of the display screen 200, but is not limited thereto.
The display screen testing device 100 is connected with the testing point 203 on the display screen 200 through the force application member 20, and the force application member 20 can be used for twisting the display screen 200 by adjusting the height of the testing point 203, simulating the stress condition of the display screen 200, and detecting the brightness of the display screen 200 before and after twisting through the brightness detector, so that the black brightness uniformity of the display screen 200 under different stress conditions is obtained, and the black brightness uniformity is used for quantifying the stress sensitivity of the display screen 200. The display screen testing device 100 adopting the structural design has the advantages of simple structure and simplicity and convenience in operation, and effectively solves the technical problem that a quantitative testing method for the stress sensitivity of the display screen 200 is lacked in the prior art.
Referring to fig. 1 to 4, in an embodiment of the present application, the force applying member 20 includes a first clamping portion 21 and a second clamping portion 22 rotatably connected to the first clamping portion 21, and the first clamping portion 21 and the second clamping portion 22 are respectively configured to abut against a bottom and a top of the display screen 200 for clamping the display screen 200.
The display screen testing device 100 further includes a height adjusting assembly 30, the height adjusting assembly 30 includes a base 31, a connecting member 32 and a first limiting member 33, the base 31, the connecting member 32 and the first limiting member 33 are disposed on the supporting platform 10, the connecting member 32 is connected to the base 31, the first limiting member 33 is connected to the connecting member 32 and can drive the connecting member 32 to slide along a first direction (shown in the figure X direction) perpendicular to the supporting platform 10, the first clamping portion 21 is fixedly connected to one end of the connecting member 32, which is far away from the base 31, and the second clamping portion 22 is hinged to one end of the connecting member 32, which is far away from the base 31. Thus, the first clamping portion 21 and the second clamping portion 22 can slide along the first direction perpendicular to the support table 10 along with the connecting member 32, so as to adjust the height of the corresponding test point 203 on the display screen 200 and twist the display screen 200, and the adjustment operation is simple.
It can be understood that the display area 201 of the display screen 200 is floating, and the portion of the non-display area 202 without the test site 203 is also in a floating state. The force application member 20 gently clamps the test point 203 of the display screen 200, so as to avoid applying stress to the display area 201 of the display screen 200 and affecting the test result.
In this embodiment, the force applying member 20 is a clamp, the first clamping portion 21 and the second clamping portion 22 are chucks, respectively, and the clamping surfaces of the first clamping portion 21 and the second clamping portion 22 facing the display screen 200 are in a dot-shaped square shape, it can be understood that in other embodiments of the present application, the clamping surfaces of the first clamping portion 21 and the second clamping portion 22 facing the display screen 200 may also be in a dot-shaped circle shape, a dot-shaped polygon shape, or a long strip shape. Therefore, according to the actual requirement of the display screen 200 to be tested, the proper force application member 20 can be selected, and the acting force of the first clamping part 21 and the second clamping part 22 on the display screen 200 can be reduced as much as possible.
It can be understood that the contact area between the strip-shaped clamping surface and the display screen 200 is larger than the contact area between the point-shaped clamping surface and the display screen 200, so that the effect of the stress on the display screen 200 by the strip-shaped clamping surface is smaller under the same acting force.
Referring to fig. 1 and 4, in the present embodiment, the height adjustment assembly 30 further includes a mounting base 40 disposed on the supporting base 10, the base 31 is fixedly disposed on the mounting base 40 and detachably connected to the supporting base 10 along with the mounting base 40, the base 31 includes a first base 311 vertically connected to the mounting base 40 and a second base 312 vertically connected to the first base 311, the connecting member 32 is L-shaped and includes a first connecting portion 321 and a second connecting portion 322 connected to each other, the first connecting portion 321 is slidably connected to the first base 311 along a first direction, and the first clamping portion 21 and the second clamping portion 22 are connected to the second connecting portion 322. The second base 312 has a limiting hole, and the height adjusting assembly 30 further includes a second limiting member 34, wherein the second limiting member 34 is telescopically inserted into the limiting hole for controlling the moving space of the first connecting portion 321 along the first direction. Therefore, the height of the first clamping portion 21 and the height of the second clamping portion 22 can be adjusted by matching the first limiting member 33 and the second limiting member 34, so that the display screen 200 is twisted, and the subsequent black-state brightness uniformity test of the display screen 200 is facilitated.
In the embodiment, the first limiting member 33 is disposed through the second connecting portion 322, and drives the second connecting portion 322 to move along a first direction perpendicular to the supporting stage 10. It is understood that the first limiting member 33 can be a linear driving member such as a hydraulic cylinder or an electric cylinder, but is not limited thereto. In addition, the first limiting element 33 can also be connected to the first connecting portion 321, and drives the first connecting portion 321 to move along the first direction to drive the second connecting portion 322 to move along the first direction, which is not limited herein.
It is understood that in other embodiments of the present application, the second limiting member 34 and the mounting seat 40 can be omitted, and the base 31 can be directly mounted on the supporting platform 10, which is not limited herein.
Referring to fig. 1 and 4, in an embodiment of the present application, the force application member 20 further includes a fixing portion 23, a first arm 24, a second arm 25, and a third arm 26, which are sequentially connected, the fixing portion 23 is fixedly connected to the connecting member 32, two ends of the first arm 24 are respectively hinged to the fixing portion 23 and the second arm 25, two ends of the third arm 26 are respectively hinged to the second arm 25 and the connecting member 32, and the second clamping portion 22 is convexly disposed at one end of the third arm 26. Thus, the included angle between the second clamping portion 22 and the first clamping portion 21 can be adjusted by pressing the end of the second arm 25 away from the third arm 26, so that the display screen 200 can be conveniently installed and removed.
In this embodiment, the second clamping portion 22 is convexly disposed on a side of the third arm 26 away from the base 31, the first arm 24 is connected to any position between two end positions of the second arm 25, and the pressing portion 251 is disposed on a side of the second arm 25 away from the third arm 26, so that an operator can press the second arm 25 conveniently, and the operation experience is improved. It is understood that the pressing part 251 may be omitted.
It is understood that in other embodiments of the present application, the fixing portion 23, the first arm 24, the second arm 25 and the third arm 26 may be omitted, and the second clamping portion 22 may be slidably connected to the connecting member 32 to adjust a distance from the first clamping portion 21, thereby clamping the display screen 200 or releasing the display screen 200, but is not limited thereto.
In one embodiment of the present application, the display screen testing apparatus 100 further includes a light shielding member; the light-shielding member is a black tape covering the non-display area 202, or the light-shielding member is a black rubber plate, and is disposed above the display screen 200 and used for shielding the non-display area 202, and the black rubber plate is provided with a display hole for exposing the display area 201. Therefore, light leakage can be prevented, the influence of the light leakage on the detection result is avoided, and the test error is reduced.
In an embodiment of the present application, the display screen testing apparatus 100 further includes a backlight disposed between the supporting platform 10 and the display screen 200 for emitting light to perform a black-state luminance uniformity test of the display screen 200.
It will be appreciated that the backlight is spaced from the display screen 200 by a predetermined distance, which is greater than the twist distance of the display screen 200, to avoid affecting the testing process of the display screen 200.
Referring to fig. 6, an embodiment of a second aspect of the present application further provides a display screen testing method, which employs the display screen testing apparatus 100 according to any embodiment of the first aspect, and the display screen testing method includes:
in step S10, the force applying members 20 are respectively connected to the test sites 203 of the display screen 200.
Step S20, adjusting the force applying members 20 to the same horizontal plane, and detecting a first brightness parameter of the display screen 200.
Step S30, sequentially adjusting the force application members 20 to make the adjusted force application member 20 have a preset adjustment distance with respect to the horizontal plane and the rest force application members are located on the horizontal plane, and detecting the second brightness parameter of the display screen 200 after adjustment to analyze the stress sensitivity of the display screen 200 according to the first brightness parameter, the preset adjustment distance and the second brightness parameter.
The first brightness parameter corresponds to an initial state of the display screen 200, the second brightness parameter corresponds to a stress state of the display screen 200, and the stress sensitivity of the display screen 200 at a corresponding preset adjusting distance can be analyzed by comparing the first brightness parameter with the second brightness parameter.
It will be appreciated that the adjusted force application member 20 is elevated relative to the horizontal to bring the corresponding test site 203 up; or the force applying member 20 is adjusted to lower relative to the horizontal plane to lower the corresponding test site 203.
In this embodiment, the preset adjusting distances of the force applying member 20 to be adjusted relative to the horizontal plane include a first preset distance of 0.3mm, a second preset distance of 0.6mm, and a third preset distance of 1mm, and the rest of the force applying members 20 are kept still during the adjusting process. It is understood that in other embodiments of the present application, the preset adjustment distance may also include a first preset distance and a second preset distance; in yet another embodiment, the preset adjustment distance may also include, but is not limited to, a first preset distance, a second preset distance, a third preset distance, and a fourth preset distance.
Specifically, in other embodiments of the present application, the preset adjustment distance may also be any value from 0 to 1.2mm, and the larger the preset adjustment distance is, the lower the black-state brightness uniformity of the display screen 200 is.
Specifically, in the present embodiment, step S30 includes:
s301, adjusting one of the force application members 20 to enable the adjusted force application member 20 to have a first preset distance, a second preset distance and a third preset distance in sequence relative to a horizontal plane, and respectively testing second brightness parameters of the display screen 200 at different preset adjustment distances, wherein the rest of the force application members are located on the horizontal plane;
s302, adjusting the force applying member 20 to a horizontal plane;
s303, adjusting one of the other force application members to enable the adjusted force application member to have a first preset distance, a second preset distance and a third preset distance relative to the horizontal plane in sequence, and testing third brightness parameters of the display screen 200 at different preset adjustment distances respectively, wherein the other force application members are located on the horizontal plane;
s304, adjusting the force application member to a horizontal plane.
And adjusting the other one of the other force application members until all the force application members are adjusted in sequence.
It is understood that the force application member 20 may move upward or downward parallel to the first direction, which is not limited herein.
In addition, before step S10, the positions of the different urging members 20 are adjusted according to the size of the display screen 200.
After step S10 and before step S20, the non-display area 202 of the display panel 200 is covered by a light shielding member to avoid light leakage.
According to the display screen testing method, the force application member 20 is adjusted to twist the display screen 200, so that the display screen 200 is in an initial state or a stress state, the brightness of the display screen 200 in the initial state and the stress state is detected by the brightness detector, the black brightness uniformity of the display screen 200 in different stress states is obtained, and the stress sensitivity of the display screen 200 is correspondingly quantized. The method for testing the stress sensitivity of the display screen is simple and convenient to operate, a quantitative testing method for the stress sensitivity of the display screen is provided, and the technical problem that the quantitative testing method for the stress sensitivity of the display screen is lacked in the prior art is effectively solved.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. The utility model provides a display screen testing arrangement for the atress sensitivity of test display screen, its characterized in that, display screen testing arrangement includes:
a support table;
the force application pieces are arranged on the support table, connected to test point positions on the display screen and used for adjusting the heights of the test point positions to twist the display screen;
and the brightness detector is arranged above the supporting table and used for detecting the brightness of the display screen before and after twisting.
2. The display screen testing device of claim 1, wherein the display screen comprises a display area and a non-display area adjacent to the display area, and the test point is located in the non-display area; the force application pieces and the test point locations are multiple in number, and the multiple test point locations are respectively arranged at four corners of the non-display area.
3. The display screen testing device according to claim 2, wherein the force applying member comprises a first clamping portion and a second clamping portion rotatably connected to the first clamping portion, and the first clamping portion and the second clamping portion are respectively used for abutting against the bottom and the top of the display screen;
display screen testing arrangement still includes the altitude mixture control subassembly, the altitude mixture control subassembly is including locating base, connecting piece and first locating part on the brace table, first locating part connect in the connecting piece can drive the connecting piece is followed the perpendicular to the first direction of brace table slides, first clamping part fixed connection in the connecting piece is kept away from the one end of base, the second clamping part articulate in the connecting piece is kept away from the one end of base.
4. The display screen testing device according to claim 3, wherein the force application member further comprises a fixing portion, a first arm, a second arm and a third arm which are sequentially connected, the fixing portion is fixedly connected to the connecting member, two ends of the first arm are respectively hinged to the fixing portion and the second arm, two ends of the third arm are respectively hinged to the second arm and the connecting member, and the second clamping portion is convexly arranged at one end of the third arm.
5. The display screen testing device according to claim 3, wherein the base comprises a first base vertically connected to the supporting table and a second base vertically connected to the first base, the connecting piece is L-shaped and comprises a first connecting portion and a second connecting portion which are connected, the first connecting portion is connected to the first base in a sliding mode along the first direction, and the first clamping portion and the second clamping portion are connected to the second connecting portion;
the second base is provided with a limiting hole, and the height adjusting assembly further comprises a second limiting part which is telescopically inserted into the limiting hole and used for controlling the first connecting part to move along the first direction.
6. The display screen testing device according to claim 3, wherein the clamping surfaces of the first clamping portion and the second clamping portion facing the display screen are one of a dotted circle, a dotted polygon and a long strip.
7. The display screen testing device of claim 2, wherein the display screen stress sensitivity testing device further comprises a light blocking member;
the light shielding member is a black tape covering the non-display region, or
The shading piece is a black rubber plate and is arranged above the display screen and used for shading the non-display area, and the black rubber plate is provided with a display hole used for exposing the display area.
8. A display screen testing apparatus according to any one of claims 1 to 7, wherein the display screen testing apparatus further comprises a backlight disposed between the support stage and the display screen.
9. A display screen testing method using the display screen testing apparatus according to any one of claims 1 to 8, the display screen testing method comprising:
the force application pieces are respectively connected to a plurality of test point positions of the display screen;
adjusting the force application members to the same horizontal plane, and detecting a first brightness parameter of the display screen;
and sequentially adjusting the force application members to enable the adjusted force application members to have a preset adjustment distance relative to the horizontal plane and the rest force application members to be located on the horizontal plane, and detecting a second brightness parameter of the display screen after adjustment so as to analyze the stress sensitivity of the display screen according to the first brightness parameter, the preset adjustment distance and the second brightness parameter.
10. The display screen testing method of claim 9, wherein the preset adjustment distance comprises at least a first preset distance and a second preset distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111253934.2A CN114063327B (en) | 2021-10-27 | 2021-10-27 | Display screen testing device and display screen testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111253934.2A CN114063327B (en) | 2021-10-27 | 2021-10-27 | Display screen testing device and display screen testing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114063327A true CN114063327A (en) | 2022-02-18 |
| CN114063327B CN114063327B (en) | 2024-09-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117470683A (en) * | 2023-11-28 | 2024-01-30 | 湖南伊米森科技有限公司 | Flat display screen distortion performance test fixture and application method thereof |
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| CN111947887A (en) * | 2020-08-13 | 2020-11-17 | 昆山国显光电有限公司 | Display module testing method and system |
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| CN207882610U (en) * | 2018-03-14 | 2018-09-18 | 江西夺胜电子科技有限公司 | A kind of testing jig of LCD display |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117470683A (en) * | 2023-11-28 | 2024-01-30 | 湖南伊米森科技有限公司 | Flat display screen distortion performance test fixture and application method thereof |
| CN117470683B (en) * | 2023-11-28 | 2024-04-26 | 湖南伊米森科技有限公司 | Flat display screen distortion performance test fixture and application method thereof |
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