CN115793299B - Device and method for detecting brightness uniformity of touch TFT display screen - Google Patents
Device and method for detecting brightness uniformity of touch TFT display screen Download PDFInfo
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- CN115793299B CN115793299B CN202310063723.5A CN202310063723A CN115793299B CN 115793299 B CN115793299 B CN 115793299B CN 202310063723 A CN202310063723 A CN 202310063723A CN 115793299 B CN115793299 B CN 115793299B
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Abstract
The invention relates to the technical field of TFT display screens, in particular to a device and a method for detecting brightness uniformity of a touch TFT display screen. The invention provides a brightness uniformity detecting device of a touch TFT display screen, which comprises a conveyor, a control panel, a detecting host, a photoelectric sensor, a detecting mechanism and the like, wherein the control panel is arranged on the conveyor, the detecting host for detecting the brightness uniformity of the touch TFT display screen is arranged on the conveyor, the photoelectric sensor is arranged on the conveyor, and the detecting mechanism is used for detecting the brightness uniformity of the touch TFT display screen. According to the invention, the electric push rod drives the light shield and the butt plate to move downwards, so that the display screen flat cable is contacted with the butt plate, the touch TFT display screen is lightened, the display screen flat cable is not required to be connected manually, the working efficiency is improved, then the brightness uniformity of the touch TFT display screen can be detected through the photosensitive sensor, meanwhile, the light shield can block exogenous light, and the accuracy of a detection result is improved.
Description
Technical Field
The invention relates to the technical field of TFT display screens, in particular to a device and a method for detecting brightness uniformity of a touch TFT display screen.
Background
The TFT display screen is a thin film transistor type liquid crystal display screen, can display screen information at high speed, high brightness and high contrast, and the brightness uniformity of the TFT display screen is an important index for judging whether the TFT display screen is good or not.
At present, when detecting the luminance uniformity of the TFT display screen, the flat cable of the TFT display screen is required to be manually connected, so that the TFT display screen is lightened, the process of connecting the flat cable is more troublesome, and then the luminance of each part of the TFT display screen is required to be sequentially detected by manually using a detection device, so that the luminance detection work is required to be performed for a plurality of times, the working efficiency is influenced, and secondly, the detection part is easily influenced by exogenous light, errors occur, and the accuracy of the detection result is influenced.
Disclosure of Invention
In order to overcome the defects that when the brightness uniformity of a TFT display screen is detected, a flat cable connected with the TFT display screen manually and brightness detection work is carried out for a plurality of times are needed, the working efficiency is affected, the detection part is easily affected by exogenous light, and the accuracy of the detection result is affected, the invention aims to provide a device and a method for detecting the brightness uniformity of the touch TFT display screen, which can improve the working efficiency and the detection accuracy.
The technical scheme of the invention is as follows:
the utility model provides a touch TFT display screen luminance degree of consistency detection device, including the conveyer, control panel, detect the host computer, photoelectric sensor, elevating system, detection mechanism and docking mechanism, install control panel on the conveyer, conveyer and control panel pass through electric connection, install the host computer on the conveyer, detect host computer and control panel and pass through electric connection, install photoelectric sensor on the conveyer, photoelectric sensor passes through electric connection with control panel, photoelectric sensor comprises sender and receiver, the symmetry is installed on the conveyer around sender and the receiver, be equipped with elevating system on the conveyer, detection mechanism is used for detecting touch TFT display screen's luminance degree of consistency, be equipped with docking mechanism on the elevating system.
Preferably, the lifting mechanism comprises a supporting frame, an electric push rod and a lifting frame, the supporting frame is connected to the conveyor, the electric push rod is connected to the supporting frame, the lifting frame is connected to the supporting frame in a sliding mode, and the telescopic rod of the electric push rod is connected with the lifting frame.
As the preference, detection mechanism is including first connecting plate, the connecting rod, the lens hood, first spring and photosensitive sensor, be connected with first connecting plate on the crane, array arrangement is connected with a plurality of connecting rod on the first connecting plate, all install the photosensitive sensor that is used for detecting touch TFT display screen luminance on the connecting rod, photosensitive sensor all passes through electric connection with detecting the host computer, all slidingtype on the connecting rod is connected with the lens hood that is used for sheltering from exogenous light, the lens hood down motion all can be with touch TFT display screen contact, all be connected with first spring between lens hood and the first connecting plate.
Preferably, the butt joint mechanism comprises a connecting frame, a connecting cylinder, a sliding rod, a second spring and a butt joint plate, wherein the connecting frame is connected to the lifting frame, the connecting cylinder is connected to the connecting frame, the sliding rod is connected to the connecting cylinder in a sliding mode, the second spring is connected between the sliding rod and the connecting cylinder, the butt joint plate for butt joint of the display screen flat cable is connected to the sliding rod, and the butt joint plate moves downwards to be in contact with the display screen flat cable.
Preferably, the touch TFT display screen positioning device further comprises a limiting mechanism, wherein the limiting mechanism comprises a positioning frame and third springs, the lifting frame is connected with the positioning frame for positioning the touch TFT display screen in a sliding mode, and four third springs are connected between the positioning frame and the lifting frame at intervals.
Preferably, the display screen wire arranging device further comprises a pressing mechanism, the pressing mechanism comprises a fixing rod and a first elastic piece, the fixing rod is connected to the abutting plate, the first elastic piece used for pressing the display screen wire arranging is connected to the fixing rod, and the first elastic piece moves downwards to be in contact with the display screen wire arranging.
Preferably, the device further comprises a flattening mechanism, the flattening mechanism comprises a second connecting plate, a rotating plate, a second elastic piece and a roller, the rear side of the bottom of the connecting frame is connected with the second connecting plate, the lower end of the second connecting plate is rotationally connected with the rotating plate, the second elastic piece is connected between the rotating plate and the second connecting plate, the roller is rotationally connected to the lower portion of the rotating plate, and the roller moves downwards to be in contact with the display screen flat cable.
The pressure release device comprises a connecting cylinder, a connecting rod, a sliding frame, a fourth spring, a second cylinder, a limiting frame, a pressure release cylinder, a second piston rod and a fifth spring, wherein the lower part of the front side of the connecting cylinder is connected with the first piston rod, the middle part of the sliding rod is connected with the first cylinder, the bottom end of the first piston rod is in sealing contact with the first cylinder, the lower part of the first cylinder is communicated with the connecting pipe in bilateral symmetry, the lower part of the sliding rod is connected with the sliding frame in sliding mode, the fourth spring is connected between the sliding frame and the butt plate, the fourth spring winds the outer side of the sliding rod, the bilateral symmetry is connected with the second cylinder, one end of the connecting pipe, far away from the first cylinder, is communicated with the top of the adjacent second cylinder, one side, close to each other, of the second cylinder is connected with the limiting frame in sliding mode, the limiting frame moves downwards and is in contact with a conveyor, the limiting frame moves towards one side, close to each other, the limiting frame is in sealing contact with the butt plate, the adjacent second cylinder is in sealing contact with the first cylinder, the front side is communicated with the upper side of the fourth spring, the fourth spring winds the outer side of the connecting rod is connected with the pressure release cylinder, the second cylinder is connected with the pressure release cylinder in sliding mode, and the pressure release cylinder is connected with the pressure release cylinder.
The invention also provides a method for detecting the brightness uniformity of the touch TFT display screen, which comprises the following steps: the touch TFT display screen is conveyed to the right through the control panel control conveyor, the touch TFT display screen can be moved to the position right below the first connecting plate through the photoelectric sensor, then the electric push rod is controlled through the control panel to drive the photosensitive sensor, the light shield and the butt joint plate to move downwards, the butt joint plate is contacted with the display screen flat cable, so that the touch TFT display screen is electrified and is lightened, the light shield can be contacted with the touch TFT display screen, the brightness uniformity of the touch TFT display screen can be detected through the cooperation of the photosensitive sensor and the detection host, and the detection host can display an operation result through the control panel.
The beneficial effects of the invention are as follows:
1. according to the invention, the electric push rod drives the light shield and the butt plate to move downwards, so that the display screen flat cable is contacted with the butt plate, the touch TFT display screen is lightened, the display screen flat cable is not required to be connected manually, the working efficiency is improved, then the brightness uniformity of the touch TFT display screen can be detected through the photosensitive sensor, meanwhile, the light shield can block exogenous light, and the accuracy of a detection result is improved.
2. The positioning frame can position the touch TFT display screen, prevent the position of the touch TFT display screen from deviating, further block exogenous light and improve the accuracy of detection results.
3. According to the invention, the first piston rod can extrude hydraulic oil in the first oil cylinder, so that the hydraulic oil extrudes the limiting frame to move towards one side close to each other, and the limiting frame can push the display screen flat cable to move to a position right below the butt joint plate, so that the display screen flat cable is aligned with the butt joint plate accurately, the position of the display screen flat cable can be finely adjusted, and the deviation of the display screen flat cable position is prevented.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of a conveyor, a control panel, a detection host and a photoelectric sensor according to the present invention.
Fig. 3 is a schematic perspective view of the lifting mechanism and the detecting mechanism of the present invention.
Fig. 4 is a schematic perspective view of the detection mechanism of the present invention.
FIG. 5 is a schematic view of a part of a cross-sectional structure of the detection mechanism of the present invention.
Fig. 6 is a schematic perspective view of the connecting rod, the light shield, the first spring and the photosensitive sensor according to the present invention.
Fig. 7 is a schematic perspective view of the docking mechanism, the limiting mechanism and the pressing mechanism of the present invention.
Fig. 8 is a schematic perspective view of a limiting mechanism according to the present invention.
Fig. 9 is a schematic perspective view of the connecting cylinder, the sliding rod, the second spring, the butt plate and the pressing mechanism of the present invention.
FIG. 10 is a schematic perspective view of the flattening mechanism and the adjustment mechanism of the present invention.
Fig. 11 is a schematic perspective view of an adjusting mechanism according to the present invention.
Fig. 12 is a schematic perspective view of a first cylinder, a pressure release cylinder, a second piston rod and a fifth spring according to the present invention.
In the above figures: 1: conveyor, 2: control panel, 3: detecting host computer, 4: photoelectric sensor, 5: touch TFT display screen, 6: display screen winding displacement, 7: lifting mechanism, 71: support frame, 72: electric putter, 73: lifting frame, 8: detection mechanism, 81: first connection plate, 82: connecting rod, 83: light shield, 84: first spring, 85: photosensor, 9: docking mechanism, 91: connecting frame, 92: connecting cylinder, 93: slide bar, 94: second spring, 95: butt plate, 10: stop gear, 101: positioning frame, 102: third spring, 11: pressing mechanism, 111: fixing rod, 112: first elastic member, 12: flattening mechanism, 121: second connection plate, 122: rotating plate, 123: second elastic member, 124: roller, 13: adjustment mechanism, 131: first piston rod, 132: first cylinder, 133: connecting pipe, 134: carriage, 135: fourth spring, 136: second cylinder, 137: limit frame, 138: pressure release cylinder, 139: second piston rod, 140: and a fifth spring.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
The utility model provides a touch TFT display screen brightness uniformity detection device, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 9, including conveyer 1, control panel 2, detect host 3, photoelectric sensor 4, elevating system 7, detection mechanism 8 and docking mechanism 9, control panel 2 is installed to conveyer 1 front side, conveyer 1 passes through electric connection with control panel 2, detect host 3 is installed in conveyer 1 bottom left side, detect host 3 can handle the operation to the testing result, thereby detect touch TFT display screen 5's brightness uniformity, detect host 3 and control panel 2 and pass through electric connection, conveyer 1 top is installed photoelectric sensor 4, when touch TFT display screen 5 moves to between photoelectric sensor 4's the sender and the receiver, photoelectric sensor 4 can send the signal, control panel 2 received the signal back control conveyer 1 stop work, thereby make touch TFT display screen 5 be located under first connecting plate 81, photoelectric sensor 4 passes through electric connection with control panel 2, photoelectric sensor 4 comprises sender and receiver and the back symmetry and is installed on touch TFT display screen 7 and is equipped with elevating system 7 on the front side of the conveyer 1, be equipped with elevating system 7, be equipped with on touch TFT display screen 5 is connected to the front side of the detection mechanism 7.
As shown in fig. 1 and 3, the lifting mechanism 7 comprises a supporting frame 71, an electric push rod 72 and a lifting frame 73, the right part of the conveyor 1 is welded with the supporting frame 71, the electric push rod 72 is bolted to the top of the supporting frame 71, the lifting frame 73 is connected to the supporting frame 71 in a sliding manner, and the telescopic rod of the electric push rod 72 is connected with the lifting frame 73.
As shown in fig. 1, fig. 3, fig. 4, fig. 5 and fig. 6, detection mechanism 8 is including first connecting plate 81, connecting rod 82, lens hood 83, first spring 84 and photosensitive sensor 85, the welding of crane 73 bottom has first connecting plate 81, array arrangement welding has a plurality of connecting rod 82 on the first connecting plate 81, photosensitive sensor 85 is all installed to the connecting rod 82 bottom, the luminance of touch TFT display screen 5 different positions can be detected to each photosensitive sensor 85, photosensitive sensor 85 all passes through electric connection with detection host computer 3, the equal slidingtype of connecting rod 82 lower part is connected with lens hood 83, lens hood 83 down motion all can be contacted with touch TFT display screen 5, thereby can block exogenous light, all be connected with first spring 84 between lens hood 83 and the first connecting plate 81.
As shown in fig. 1, 7 and 9, the docking mechanism 9 includes a connecting frame 91, a connecting cylinder 92, a sliding rod 93, a second spring 94 and a docking plate 95, the front side of the lifting frame 73 is welded with the connecting frame 91, the left part of the front side of the connecting frame 91 is welded with the connecting cylinder 92, the sliding rod 93 is connected inside the connecting cylinder 92, the second spring 94 is connected between the sliding rod 93 and the connecting cylinder 92, the docking plate 95 is connected at the bottom of the sliding rod 93, and the docking plate 95 moves downwards to be in contact with the display screen flat cable 6, so that the touch TFT display screen 5 is electrified and lightened.
When the brightness uniformity of the touch TFT display 5 is required to be detected, the touch TFT display 5 is firstly placed on the left side of the top of the conveyor 1, the conveyor 1 is controlled by the control panel 2 to convey the touch TFT display 5, the touch TFT display 5 is driven to move right, when the touch TFT display 5 moves between a transmitter and a receiver of the photoelectric sensor 4, the touch TFT display 5 blocks light emitted by the transmitter, the receiver of the photoelectric sensor 4 does not receive the light emitted by the transmitter any more, the photoelectric sensor 4 sends a signal, the control panel 2 receives the signal and then controls the conveyor 1 to stop working, at the moment, the touch TFT display 5 is positioned under the first connecting plate 81, the display flat cable 6 is positioned under the abutting plate 95, then the electric push rod 72 is controlled by the control panel 2 to drive the lifting frame 73 to move downwards, the first connecting plate 81, the connecting rod 82, the photosensitive sensor 85, the light shield 83, the connecting frame 91, the connecting cylinder 92, the sliding rod 93 and the abutting plate 95 are driven to move downwards, when the abutting plate 95 is contacted with the display screen flat cable 6, the touch TFT display screen 5 is electrified to be lightened, the abutting plate 95 and the sliding rod 93 stop moving downwards, the connecting cylinder 92 continues to move downwards, the second spring 94 is compressed, the abutting plate 95 can be pressed against the display screen flat cable 6 through the action of the second spring 94, thus the work efficiency is improved without manually connecting the display screen flat cable 6, when the light shield 83 is contacted with the touch TFT display screen 5, the light shield 83 stops moving, the connecting rod 82 continues to move downwards, the first spring 84 is compressed, the light shield 83 can be tightly attached to the touch TFT display screen 5 through the action of the first spring 84, at the moment, the light shield 83 can block external source light, each photosensitive sensor 85 can detect the brightness of different positions of the touch TFT display screen 5, and transmits the detection result to the detection host 3 for processing operation, the detection host 3 can display the operation result through the control panel 2, people can know whether the brightness uniformity of the touch TFT display screen 5 is qualified or not through watching the operation result, the brightness detection result errors of different positions are within the allowable range, namely, the brightness uniformity of the touch TFT display screen 5 is qualified, after detection is finished, the electric push rod 72 is controlled by the control panel 2 to drive the lifting frame 73 to move upwards, the first connecting plate 81, the connecting rod 82, the photosensitive sensor 85, the connecting frame 91 and the connecting cylinder 92 are driven to move upwards for resetting, the first spring 84 and the second spring 94 are restored, then the connecting rod 82 and the connecting cylinder 92 can drive the light shield 83, the sliding rod 93 and the butt plate 95 to move upwards for resetting, the light shield 83 is separated from the touch TFT display screen 5, the butt plate 95 is separated from the display screen flat cable 6, then the detected touch TFT display screen 5 is manually taken away, and the operation is repeated to detect other touch TFT display screens 5 again.
Example 2
On the basis of embodiment 1, as shown in fig. 1, 7 and 8, the device further comprises a limiting mechanism 10, the limiting mechanism 10 comprises a positioning frame 101 and a third spring 102, the lower part of the lifting frame 73 is connected with the positioning frame 101 in a sliding manner, when the positioning frame 101 covers the outer side of the touch TFT display 5, the touch TFT display 5 can be positioned, and external light can be further blocked, four third springs 102 are connected between the positioning frame 101 and the lifting frame 73 at intervals, when the lifting frame 73 moves downwards, the positioning frame 101 is driven to move downwards, when the positioning frame 101 contacts with the conveyor 1, the positioning frame 101 stops moving, the lifting frame 73 continues to move downwards, the third springs 102 are compressed, the positioning frame 101 can be tightly attached to the conveyor 1 under the action of the third spring 102, at this time, the positioning frame 101 covers the outer side of the touch TFT display 5, the touch TFT display 5 can be positioned, the position of the touch TFT display 5 is prevented from deviating, when the brightness uniformity of the touch TFT display 5 is detected, and the external light can be further blocked by the positioning frame 101, and the accuracy of detecting results can be further improved.
As shown in fig. 1, 7 and 9, the display screen wire 6 is further provided with a pressing mechanism 11, the pressing mechanism 11 comprises a fixing rod 111 and a first elastic member 112, the fixing rod 111 is welded at the rear side of the top of the abutting plate 95, the first elastic member 112 is connected at the rear side of the fixing rod 111, the first elastic member 112 moves downwards to be in contact with the display screen wire 6, when the abutting plate 95 moves upwards, the first elastic member 112 can press the display screen wire 6 to prevent the display screen wire 6 from moving upwards, when the abutting plate 95 moves downwards, the fixing rod 111 and the first elastic member 112 are driven to move downwards, when the first elastic member 112 contacts with the display screen wire 6, the fixing rod 111 continues to move downwards, the display screen wire 6 can be extruded by the first elastic member 112, the first elastic member 112 deforms, when the abutting plate 95 moves upwards, the fixing rod 111 is driven to move upwards, the first elastic member 112 slowly returns to the original state, and the display screen wire 6 is prevented from moving upwards, so that the display screen wire 6 is prevented from being damaged.
As shown in fig. 1 and 10, the flattening mechanism 12 further includes a second connecting plate 121, a rotating plate 122, a second elastic member 123 and a roller 124, where the rear side of the bottom of the connecting frame 91 is connected with the second connecting plate 121, the lower end of the second connecting plate 121 is rotatably connected with the rotating plate 122, a second elastic member 123 is connected between the rotating plate 122 and the second connecting plate 121, the lower portion of the rotating plate 122 is rotatably connected with the roller 124, the roller 124 moves downward to contact with the display screen flat cable 6, when the connecting frame 91 moves downward, the second connecting plate 121, the rotating plate 122 and the roller 124 are driven to move downward, when the roller 124 contacts with the display screen flat cable 6, the roller 124 stops moving downward, at this time, the connecting frame 91 and the second connecting plate 121 continue to move downward, the rotating plate 122 is pressed to rotate forward, the second elastic member 123 deforms, and the rotating plate 122 drives the roller 124 to roll forward on the display screen flat cable 6, so that the surface of the display screen flat cable 6 is flattened, and the display screen flat cable 6 is convenient to butt against the display screen flat cable 6 and the connecting plate 95.
As shown in fig. 1, fig. 10, fig. 11 and fig. 12, further include adjustment mechanism 13, adjustment mechanism 13 is including first piston rod 131, first hydro-cylinder 132, connecting pipe 133, carriage 134, fourth spring 135, second hydro-cylinder 136, spacing 137, pressure release cylinder 138, second piston rod 139 and fifth spring 140, connecting tube 92 front side lower part is connected with first piston rod 131, slide bar 93 middle part is connected with first hydro-cylinder 132, first piston rod 131 and first hydro-cylinder 132 sliding connection, first piston rod 131 bottom and first hydro-cylinder 132 sealing contact, first hydro-cylinder 132 lower part bilateral symmetry communicates there is connecting pipe 133, slide bar 93 lower part sliding connection has carriage 134, be connected with fourth spring 135 between carriage 134 and the butt plate 95, fourth spring 135 winds the outside at slide bar 93, the upper left and right symmetry is connected with second hydro-cylinder 136, connecting pipe 133 keeps away from first hydro-cylinder 132's one end all and adjacent second hydro-cylinder top intercommunication, second hydro-cylinder 136 one side that each other all is connected with spacing frame 137 in sliding connection, spacing frame 137 and carriage 1 and second hydro-cylinder 138 near each other, spacing frame 138 and first piston rod 138 near each other are connected with spacing frame 138, the side that all is close to each other is connected with spacing frame 138 and the first piston rod 138, the side is close to the first piston rod 138 is connected with the side of the second piston rod 139 and the side of the adjacent piston rod is close to the first piston rod 139, the side is in sliding connection, the sealing connection is between the sealing frame is.
Initially, the first cylinder 132 is filled with hydraulic oil, when the connecting cylinder 92 moves downwards, the sliding rod 93, the abutting plate 95, the first piston rod 131, the first cylinder 132, the sliding frame 134, the second cylinder 136 and the limiting frame 137 are driven to move downwards, when the limiting frame 137 contacts with the conveyor 1, the limiting frame 137, the second cylinder 136 and the sliding frame 134 stop moving, the connecting cylinder 92, the sliding rod 93, the abutting plate 95, the first piston rod 131 and the first cylinder 132 continue to move downwards, the fourth spring 135 stretches, the bottom of the limiting frame 137 can be tightly attached to the conveyor 1 through the action of the fourth spring 135, when the abutting plate 95 contacts with the display screen flat cable 6, the abutting plate 95, the sliding rod 93 and the first cylinder 132 stop moving, the connecting cylinder 92 continues to move downwards, the first piston rod 131 continues to move downwards, the second spring 94 compresses, the first piston rod 131 can squeeze the hydraulic oil in the second cylinder 132 through the connecting pipe 133, thereby driving the limiting frame 137 to move towards one side close to each other, when the abutting plate 95 contacts with the display screen flat cable 6, the display screen 137 can be pushed by the abutting plate 135, the position of the piston rod 138 can be pushed by the abutting plate 95, the piston rod is prevented from moving downwards, and the display screen is prevented from moving downwards, the piston rod 131 is guaranteed to move downwards, and the piston rod is prevented from moving downwards.
A brightness uniformity detection method of a touch TFT display screen comprises the following steps: the touch TFT display 5 is conveyed to the right through the control panel 2 control conveyor 1, the touch TFT display 5 can be moved to the position right below the first connecting plate 81 through the photoelectric sensor 4, then the electric push rod 72 is controlled through the control panel 2 to drive the photosensitive sensor 85, the light shield 83 and the butt plate 95 to move downwards, the butt plate 95 is contacted with the display screen flat cable 6, so that the touch TFT display 5 is electrified and lightened, the light shield 83 can be contacted with the touch TFT display 5, the brightness uniformity of the touch TFT display 5 can be detected through the cooperation of the photosensitive sensor 85 and the detection host 3, and the detection host 3 can display an operation result through the control panel 2.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The brightness uniformity detection device for the touch TFT display screen is characterized by comprising a conveyor, a control panel, a detection host, a photoelectric sensor, a lifting mechanism, a detection mechanism and a docking mechanism, wherein the conveyor is provided with the control panel, the conveyor is electrically connected with the control panel, the detection host is arranged on the conveyor and is electrically connected with the control panel, the conveyor is provided with the photoelectric sensor, the photoelectric sensor is electrically connected with the control panel, the photoelectric sensor consists of a transmitter and a receiver, the transmitter and the receiver are symmetrically arranged on the conveyor front and back, the conveyor is provided with the lifting mechanism, the detection mechanism is used for detecting the brightness uniformity of the touch TFT display screen, and the lifting mechanism is provided with the docking mechanism; the lifting mechanism comprises a supporting frame, an electric push rod and a lifting frame, the supporting frame is connected to the conveyor, the electric push rod is connected to the supporting frame, the lifting frame is connected to the supporting frame in a sliding mode, and a telescopic rod of the electric push rod is connected with the lifting frame; the detection mechanism comprises a first connecting plate, connecting rods, a light shield, a first spring and a photosensitive sensor, wherein the first connecting plate is connected to the lifting frame, a plurality of connecting rods are connected to the first connecting plate in an array arrangement mode, the photosensitive sensors for detecting the brightness of the touch TFT display screen are all installed on the connecting rods, the photosensitive sensors are all electrically connected with the detection host, the light shield for shielding external light is all connected to the connecting rods in a sliding mode, the light shield moves downwards and is contacted with the touch TFT display screen, and the first springs are all connected between the light shield and the first connecting plates; the butt joint mechanism comprises a connecting frame, a connecting cylinder, a sliding rod, a second spring and a butt joint plate, wherein the connecting frame is connected to the lifting frame, the connecting cylinder is connected to the connecting frame, the sliding rod is connected to the connecting cylinder in a sliding mode, the second spring is connected between the sliding rod and the connecting cylinder, the butt joint plate for butt joint of the display screen flat cable is connected to the sliding rod, and the butt joint plate moves downwards to be in contact with the display screen flat cable.
2. The device for detecting brightness uniformity of a touch TFT display screen according to claim 1, further comprising a limiting mechanism, wherein the limiting mechanism comprises a positioning frame and third springs, the lifting frame is slidably connected with the positioning frame for positioning the touch TFT display screen, and four third springs are connected between the positioning frame and the lifting frame at intervals.
3. The device for detecting brightness uniformity of a touch TFT display according to claim 2, further comprising a pressing mechanism, wherein the pressing mechanism comprises a fixing rod and a first elastic member, the fixing rod is connected to the butt joint plate, the first elastic member for pressing the flat cable of the display is connected to the fixing rod, and the first elastic member moves downwards to be in contact with the flat cable of the display.
4. The device for detecting brightness uniformity of a touch TFT display screen according to claim 3, further comprising a flattening mechanism, wherein the flattening mechanism comprises a second connecting plate, a rotating plate, a second elastic member and a roller, the rear side of the bottom of the connecting frame is connected with the second connecting plate, the lower end of the second connecting plate is rotatably connected with the rotating plate, the second elastic member is connected between the rotating plate and the second connecting plate, the roller is rotatably connected to the lower part of the rotating plate, and the roller moves downwards to be in contact with a flat cable of the display screen.
5. The device for detecting brightness uniformity of a touch TFT display screen according to claim 4, further comprising an adjusting mechanism, wherein the adjusting mechanism comprises a first piston rod, a first cylinder, a connecting pipe, a sliding frame, a fourth spring, a second cylinder, a limiting frame, a pressure release cylinder, a second piston rod and a fifth spring, wherein the lower part of the front side of the connecting cylinder is connected with the first piston rod, the middle part of the sliding rod is connected with the first cylinder, the first piston rod is connected with the first cylinder in a sliding manner, the bottom end of the first piston rod is in sealing contact with the first cylinder, the lower part of the first cylinder is in bilateral symmetry communication with the connecting pipe, the lower part of the sliding rod is connected with the sliding frame, the sliding frame is connected with the fourth spring between the abutting plate, the fourth spring is wound on the outer side of the sliding rod, the upper side of the sliding frame is in bilateral symmetry connection with the second cylinder, one end of the connecting pipe far away from the first cylinder is communicated with the top of the adjacent second cylinder, one side of the second cylinder is in sliding connection with the limiting frame, the limiting frame moves downwards and is contacted with a conveyor, one side of the limiting frame is in sliding contact with the conveyor, the limiting frame moves towards one side of the second cylinder is in contact with the abutting plate, the side of the limiting frame is in sliding contact with the abutting plate, the second cylinder is in contact with the second cylinder is in sliding contact with the upper side of the second cylinder, the second cylinder is in sliding connection with the pressure release cylinder.
6. A detection method using the touch TFT display screen brightness uniformity detection apparatus according to any one of claims 1 to 5, comprising the steps of: the touch TFT display screen is conveyed to the right through the control panel control conveyor, the touch TFT display screen can be moved to the position right below the first connecting plate through the photoelectric sensor, then the electric push rod is controlled through the control panel to drive the photosensitive sensor, the light shield and the butt joint plate to move downwards, the butt joint plate is contacted with the display screen flat cable, so that the touch TFT display screen is electrified and is lightened, the light shield can be contacted with the touch TFT display screen, the brightness uniformity of the touch TFT display screen can be detected through the cooperation of the photosensitive sensor and the detection host, and the detection host can display an operation result through the control panel.
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| CN202310063723.5A CN115793299B (en) | 2023-02-06 | 2023-02-06 | Device and method for detecting brightness uniformity of touch TFT display screen |
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| CN202310063723.5A CN115793299B (en) | 2023-02-06 | 2023-02-06 | Device and method for detecting brightness uniformity of touch TFT display screen |
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| JP4883762B2 (en) * | 2005-03-31 | 2012-02-22 | 大日本スクリーン製造株式会社 | Unevenness inspection apparatus and unevenness inspection method |
| CN104160439B (en) * | 2012-03-01 | 2017-03-01 | 日本麦可罗尼克斯股份有限公司 | The uneven detection method of display of display device and its device |
| CN203930257U (en) * | 2014-05-03 | 2014-11-05 | 井冈山市海巢光电科技有限公司 | A kind of Novel backlight is lighted tool |
| CN209765200U (en) * | 2019-03-29 | 2019-12-10 | 伟时电子股份有限公司 | Backlight source lighting fixture |
| CN112285962A (en) * | 2020-11-26 | 2021-01-29 | 温州硕出电子科技有限公司 | Display screen brightness inspection equipment |
| CN214098014U (en) * | 2020-12-22 | 2021-08-31 | 深圳德祥光电有限公司 | Display screen brightness rapid detection device |
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2023
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