CN211124763U - Shared backlight source light leakage prevention shading mechanism - Google Patents
Shared backlight source light leakage prevention shading mechanism Download PDFInfo
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- CN211124763U CN211124763U CN201921704666.XU CN201921704666U CN211124763U CN 211124763 U CN211124763 U CN 211124763U CN 201921704666 U CN201921704666 U CN 201921704666U CN 211124763 U CN211124763 U CN 211124763U
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Abstract
The utility model provides a sharing backlight source light leak prevention light shading mechanism includes platen and the subassembly in a poor light of setting on the platen, the subassembly in a poor light has a luminous face, still install two relative parallel arrangement's vertical light shading strip and a horizontal light shading strip on the platen, two vertical light shading strip and horizontal light shading strip are in perpendicular cross arrangement on the luminous face of subassembly in a poor light, vertical light shading strip and horizontal light shading strip both ends all with platen sliding connection, all be used for on vertical light shading strip and the horizontal light shading strip rather than the reciprocal linear drive mechanism of perpendicular setting, can change the size of the display screen placing area that its formed through the light shading strip of slip all directions to can be applicable to the detection of multiple size display screen, improved its general type greatly, and its operation is simple more convenient, and the adjustment is also comparatively rapid.
Description
Technical Field
The utility model belongs to display screen detection area, concretely relates to sharing backlight source light leak light shading mechanism of preventing.
Background
When the defect detection is carried out on the display screen without the backlight source, the display screen does not have a corresponding backlight assembly, so that the display screen needs to be placed on an external backlight assembly during the detection, and the display screen is illuminated by a light source generated by the backlight assembly to be detected.
The mechanism is shaded for the special use that corresponds display screen size of a dimension in a poor light mechanism that is used for detecting the display screen at present, and the mechanism is shaded and sets up a display screen on and places the region, and it comprises transparent panel to place the region, is light-emitting component under the transparent panel, and light-emitting component produces light and sees through transparent panel and shine on the display screen, and the region that the mechanism is shaded and locate the display screen and place outside the region is the casing, and the casing is opaque material, can shelter from light, stops its light leak.
However, in the actual production and manufacturing process of the display screen, the size of the display screen is usually not unique, the types are various, and the backlight mechanism with the special size is still adopted, so that a special backlight mechanism matched with the size of the display screen is required to be produced and manufactured corresponding to products with each size.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sharing backlight light leak prevention light shading mechanism.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a common backlight source light leakage prevention shading mechanism comprises a bedplate and a backlight assembly arranged on the bedplate, wherein the backlight assembly is provided with a light emitting surface;
the table plate is also provided with two vertical shading strips and a transverse shading strip which are arranged in parallel relatively, and the two vertical shading strips and the transverse shading strip are vertically and crossly arranged on the light emitting surface of the backlight assembly; the two ends of the vertical shading strip and the transverse shading strip are both connected with the bedplate in a sliding manner, reciprocating linear driving mechanisms which are perpendicular to the vertical shading strip and the transverse shading strip are both acted on the vertical shading strip and the transverse shading strip, and the reciprocating linear driving mechanisms are fixed on the bedplate so that the vertical shading strip and the transverse shading strip can slide along a straight line;
the two vertical light-shading strips are connected with a movable light-shading sheet in a sliding manner along the motion direction of the transverse light-shading strip, the vertical light-shading strips are provided with light-blocking parts which are parallel to the movable light-shading sheets, one ends of the light-blocking parts are in sliding fit with the movable light-shading sheets, the other ends of the light-blocking parts extend to the edge of the backlight assembly, and the light-blocking parts, the movable light-shading sheets and the transverse light-shading strips are in contact fit with the light-emitting surface;
the table plate is provided with a telescopic shading cloth assembly corresponding to the two vertical shading strips and the transverse shading strip, and the two vertical shading strips and the transverse shading strip are connected with shading cloth of the telescopic shading cloth assembly.
In the above scheme, the linear driving mechanism is a screw nut mechanism or an electric linear sliding table.
In the above scheme, telescopic shading cloth subassembly includes shading cloth winding mechanism and shading cloth, shading cloth winding mechanism includes the support and installs the pivot on the support, the winding of shading cloth is in the pivot, the tip cover of pivot is equipped with the torsional spring, the one end and the pivot of torsional spring are connected, its other end with support fixed connection.
In the above solution, the backlight assembly includes a frame mounted with L ED lamps and a glass panel disposed on the frame, and an upper surface of the glass panel is used as a light emitting surface.
In the above scheme, the glass panel is a rectangular glass panel.
The utility model discloses has following effect: the utility model discloses a set up the shading cloth subassembly around backlight unit, utilize horizontal and vertical shading strip around forming the display screen and place the region, horizontal and vertical shading strip and backlight unit's light emitting area sliding fit, can change the size of the display screen that it formed and place the region through sliding each directional shading strip, thereby can be applicable to the detection of multiple size display screen, improved its general type greatly, it can save manufacturing cost more to compare with the traditional special backlight unit that need to make a large amount; the shading of the part outside the display screen placing area is also driven by the transverse and vertical shading strips driven by the driving mechanism to drive the shading cloth to move on the light emitting surface for synchronous adjustment, wherein each shading strip is driven by the screw nut machine, the operation is simpler and more convenient, and the adjustment is also quicker.
Drawings
Fig. 1 is a top view of an embodiment of the present invention;
fig. 2 is a schematic structural view of the embodiment of the present invention after the retractable shade cloth assembly is removed;
fig. 3 is a schematic structural view of a vertical shade strip according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of FIG. 3 with the movable shade removed;
fig. 5 is a schematic structural view of a movable shade according to an embodiment of the present invention.
In the above drawings: 1-platen, 2-backlight assembly, 3-vertical shading strip, 31-movable shading sheet, 32-light blocking part, 33-chute, 4-horizontal shading strip, 5-reciprocating linear driving mechanism, 6-telescopic shading cloth assembly, 61-shading cloth rolling mechanism and 62-shading cloth.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the embodiment is shown in figures 1-5, a common backlight source light leakage prevention and shading mechanism comprises a bedplate 1 and a backlight assembly 2 arranged on the bedplate 1, wherein the backlight assembly 2 is provided with a light emitting surface, the backlight assembly 2 is an existing product and comprises a frame provided with L ED lamps and a rectangular glass panel arranged on the frame, the upper surface of the rectangular glass panel is used as a light emitting surface, and the light emitting surface is used for illuminating a display screen without a backlight source;
the bedplate 1 is also provided with two vertical light-shading strips 3 and a transverse light-shading strip 4 which are arranged in parallel relatively, and the two vertical light-shading strips 3 and the transverse light-shading strip 4 are vertically and crossly arranged on the light emitting surface of the backlight assembly 2; the two ends of the vertical shading strip 3 and the two ends of the transverse shading strip 4 are both connected with the bedplate 1 in a sliding manner, specifically, the vertical shading strip 3, the transverse shading strip 4 and the bedplate 1 can form sliding connection through a slider guide rail mechanism, reciprocating linear driving mechanisms 5 vertically arranged with the vertical shading strip 3 and the transverse shading strip 4 are both acted on the vertical shading strip 3 and the transverse shading strip 4, the reciprocating linear driving mechanisms 5 are fixed on the bedplate 1 so as to enable the vertical shading strip 3 and the transverse shading strip 4 to slide along a straight line, wherein the reciprocating linear driving mechanisms 5 are screw nut mechanisms or electric linear sliding tables so as to drive the vertical shading strip 3 and the transverse shading strip 4 to slide;
the two vertical shading strips 3 are connected with a movable shading sheet 31 in a sliding manner along the movement direction of the transverse shading strip 4, specifically, the vertical shading strips 3 are provided with sliding grooves 33, two bolts penetrate through the sliding grooves, the end parts of the bolts are screwed into the movable shading sheet 31, and the bolts are in clearance fit with the sliding grooves 33 so that the movable shading sheet 31 can slide in the sliding grooves 33; the vertical light-shielding strip 3 is provided with a light-shielding part 32 which is parallel to the movable light-shielding sheet 31, one end of the light-shielding part 32 is in sliding fit with the movable light-shielding sheet 31, the other end of the light-shielding part extends to the edge of the backlight assembly 2, and the light-shielding part 32, the movable light-shielding sheet 31 and the transverse light-shielding strip 4 are in contact fit with the light-emitting surface; because the vertical light-shielding strips 3 and the transverse light-shielding strips 4 are arranged in a cross manner, the vertical light-shielding strips 3 are erected above the transverse light-shielding strips 4, so that the vertical light-shielding strips 3 have a certain gap from the light-emitting surface, and the vertical light-shielding strips 3 are matched with the movable light-shielding sheets 31 to shield light rays at the gap; meanwhile, the movable light-shielding sheet 31 is in sliding fit with the vertical light-shielding strip 3, when the transverse light-shielding strip 4 is moved on the light-emitting surface, a new gap is generated between the transverse light-shielding strip 4 and the vertical light-shielding strip 3, and at the moment, the movable light-shielding sheet 31 slides towards the transverse light-shielding strip 4, so that the gap can be shielded;
a telescopic shading cloth assembly 6 is arranged on the bedplate 1 corresponding to the two vertical shading strips 3 and the transverse shading strips 4, and the two vertical shading strips 3 and the transverse shading strips 4 are connected with the shading cloth of the telescopic shading cloth assembly 6; the telescopic shading cloth assembly 6 is an existing product and comprises a shading cloth winding mechanism 61 and shading cloth 62, wherein the shading cloth winding mechanism 61 comprises a support and a rotating shaft arranged on the support, the shading cloth 62 is wound on the rotating shaft, a torsion spring is sleeved at the end part of the rotating shaft, one end of the torsion spring is connected with the rotating shaft, the other end of the torsion spring is fixedly connected with the support, and the winding mechanism 61 can automatically wind the shading cloth 62;
when the display screen is used specifically, one long edge of the display screen is aligned with the lower edge of the light emitting surface of the backlight assembly 2, the two vertical light-shielding strips 3 are slid on the light emitting surface of the backlight assembly 2 according to the length and width of the display screen, the distance between the two vertical light-shielding strips 3 is matched with the length of the display screen, the two vertical light-shielding strips abut against the two wide edges of the display screen, the transverse light-shielding strip 4 is slid to abut against the long edge of the display screen, and at the moment, the area formed by the vertical light-shielding strips 3 and the transverse light-shielding strips 4 is the placement area matched with the display screen; when the vertical shading strip 3 and the horizontal shading strip 4 slide, the shading cloth 62 is pulled out from the telescopic shading cloth assembly 6 by the vertical shading strip 3 and the horizontal shading strip 4 simultaneously, so that the area outside the display screen on the light-emitting surface is shaded, and the purpose of shading is achieved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides a sharing backlight leak protection light shading mechanism which characterized in that: the table comprises a table plate (1) and a backlight assembly (2) arranged on the table plate (1), wherein the backlight assembly (2) is provided with a light emitting surface;
the table plate (1) is further provided with two vertical light shading strips (3) and a transverse light shading strip (4) which are arranged in parallel relatively, and the two vertical light shading strips (3) and the transverse light shading strip (4) are arranged on the light emitting surface of the backlight assembly (2) in a vertical crossing manner; the two ends of the vertical shading strip (3) and the two ends of the transverse shading strip (4) are both connected with the bedplate (1) in a sliding manner, reciprocating linear driving mechanisms (5) which are perpendicular to the vertical shading strip (3) and the transverse shading strip (4) are both acted on the vertical shading strip (3) and the transverse shading strip (4), and the reciprocating linear driving mechanisms (5) are fixed on the bedplate (1) so that the vertical shading strip (3) and the transverse shading strip (4) can slide along a straight line;
the two vertical light-shading strips (3) are connected with a movable light-shading sheet (31) in a sliding manner along the motion direction of the transverse light-shading strip (4), the vertical light-shading strips (3) are provided with a light-shading part (32) which is parallel to the movable light-shading sheet (31), one end of the light-shading part (32) is in sliding fit with the movable light-shading sheet (31), the other end of the light-shading part extends to the edge of the backlight assembly (2), and the light-shading part (32), the movable light-shading sheet (31) and the transverse light-shading strip (4) are in contact fit with the light-emitting surface;
the table plate (1) is provided with a telescopic shading cloth assembly (6) corresponding to the two vertical shading strips (3) and the transverse shading strips (4), and the two vertical shading strips (3) and the transverse shading strips (4) are connected with shading cloth of the telescopic shading cloth assembly (6).
2. The common backlight source light leakage prevention and shading mechanism according to claim 1, wherein: the reciprocating linear driving mechanism (5) is a screw nut mechanism or an electric linear sliding table.
3. The common backlight source light leakage prevention and shading mechanism according to claim 1, wherein: telescopic shading cloth subassembly (6) are including shading cloth winding mechanism (61) and shading cloth (62), shading cloth winding mechanism (61) are including the support and install the pivot on the support, shading cloth (62) winding is in the pivot, the tip cover of pivot is equipped with the torsional spring, the one end and the pivot of torsional spring are connected, its other end with support fixed connection.
4. The mechanism of claim 1, wherein the backlight assembly (2) comprises a frame having L ED lamps mounted thereon and a glass panel disposed on the frame, the upper surface of the glass panel serving as a light-emitting surface.
5. The common backlight source light leakage prevention and shading mechanism according to claim 4, wherein: the glass panel is a rectangular glass panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704666.XU CN211124763U (en) | 2019-10-12 | 2019-10-12 | Shared backlight source light leakage prevention shading mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704666.XU CN211124763U (en) | 2019-10-12 | 2019-10-12 | Shared backlight source light leakage prevention shading mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN211124763U true CN211124763U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921704666.XU Active CN211124763U (en) | 2019-10-12 | 2019-10-12 | Shared backlight source light leakage prevention shading mechanism |
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| CN (1) | CN211124763U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089534A (en) * | 2021-11-26 | 2022-02-25 | 歌尔光学科技有限公司 | Light leakage prevention intelligent glasses, light leakage prevention method and device thereof and electronic equipment |
| CN114355642A (en) * | 2021-12-28 | 2022-04-15 | 深圳市深科达智能装备股份有限公司 | Lighting detection device, lighting detection system and lighting detection method |
| CN114815338A (en) * | 2022-05-11 | 2022-07-29 | 苏州精濑光电有限公司 | Panel detection equipment and test method thereof |
-
2019
- 2019-10-12 CN CN201921704666.XU patent/CN211124763U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089534A (en) * | 2021-11-26 | 2022-02-25 | 歌尔光学科技有限公司 | Light leakage prevention intelligent glasses, light leakage prevention method and device thereof and electronic equipment |
| CN114089534B (en) * | 2021-11-26 | 2023-12-26 | 歌尔科技有限公司 | Light leakage prevention intelligent glasses, light leakage prevention method and device thereof and electronic equipment |
| CN114355642A (en) * | 2021-12-28 | 2022-04-15 | 深圳市深科达智能装备股份有限公司 | Lighting detection device, lighting detection system and lighting detection method |
| CN114815338A (en) * | 2022-05-11 | 2022-07-29 | 苏州精濑光电有限公司 | Panel detection equipment and test method thereof |
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