CN117374059B - Peep-proof display device - Google Patents
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- CN117374059B CN117374059B CN202311334455.2A CN202311334455A CN117374059B CN 117374059 B CN117374059 B CN 117374059B CN 202311334455 A CN202311334455 A CN 202311334455A CN 117374059 B CN117374059 B CN 117374059B
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- 230000002265 prevention Effects 0.000 description 6
- 208000002173 dizziness Diseases 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 244000144985 peep Species 0.000 description 4
- 208000003464 asthenopia Diseases 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application belongs to the technical field of display, and particularly relates to an anti-peeping display device which comprises a bottom plate, a rotating assembly, a light-emitting chip and a driving assembly, wherein the bottom plate is arranged on the bottom plate; the rotating component comprises a hinge and a chip frame which is arranged corresponding to the hinge, the chip frame is symmetrically arranged, the symmetry plane is a normal plane of the bottom plate of the connecting line of the midpoints of the two long sides of the bottom plate, the chip frame and the bottom plate are rotatably connected through the hinge, and the axis of the hinge is parallel to the symmetry plane; the light-emitting chip is arranged on one side of the chip frame, which is away from the bottom plate, and the driving assembly drives the chip frame to rotate around the hinge; the chip frame can be adjusted at will between first angle and second angle, and under first angle, the light-emitting direction of arbitrary light-emitting chip is perpendicular with the bottom plate, and under the second angle, the light-emitting direction of arbitrary light-emitting chip deflects towards the direction that is close to the symmetry plane. The application has the effect of facilitating the user to adjust the visual angle and the peep-proof angle of the display device according to the requirement.
Description
Technical Field
The application relates to the technical field of display, in particular to an anti-peeping display device.
Background
A display is a common electronic device for converting an electrical signal into a visible image, and with the popularization of paperless office work and development of computers, the display gradually becomes one of main carriers for people's work and life, and with the development of computers, the risk of peeping by people is brought about.
With the increasing awareness of information security, how to protect information displayed on a display from unauthorized observation is becoming more and more important, and in order to solve this problem, peep-proof techniques have been developed. The peep-proof technology aims to reduce the visibility of screen contents under a side view angle, thereby preventing others from stealing information from an illegal angle, and the main peep-proof technology comprises a polarization filter and an optical microstructure. A polarizing filter is a thin film applied to the surface of a display that is capable of blocking a large portion of incident light at a specific angle. Only the user facing the screen can see the clear image, and the effect of blurring, dark color or distortion can appear when the user looks from the side; optical microstructures, which scatter or reflect light so that the displayed image is clearly visible only at a specific viewing angle and is indiscernible from a side view, change the direction and angle of light propagation by using minute convex or concave structures.
However, although some progress has been made in the peep-proof technology, there are challenges, such as a fixed viewing angle range and a fixed optical effect, for example, a peep-proof film, whose light-emitting viewing angle is a preset range, which results in that the peep-proof film cannot be flexibly adjusted according to specific requirements, and limits the application range and scalability thereof. Therefore, there is a need for a peep-proof display device that can flexibly adjust the viewing angle.
Disclosure of Invention
In order to solve the above problems, a user can adjust the viewing angle and the peep-proof angle of the display device as required.
In a first aspect, the present application provides a peep-proof display device.
The application provides a peep-proof display device, which adopts the following technical scheme:
A peep-proof display device comprises a bottom plate, a rotating assembly, a light-emitting chip and a driving assembly; the rotating assembly comprises a hinge and a chip frame which is arranged corresponding to the hinge, the chip frames are symmetrically arranged, the symmetry plane is a normal plane of the bottom plate passing through a connecting line of midpoints of two long sides of the bottom plate, the chip frames and the bottom plate are rotatably connected through the hinge, and the axis of the hinge is parallel to the symmetry plane; the light-emitting chip is arranged on one side, away from the bottom plate, of the chip frame, and the driving assembly drives the chip frame to rotate around the hinge; the chip frame can be adjusted at will between a first angle and a second angle, under the first angle, the light emitting direction of any light emitting chip is vertical to the bottom plate, and under the second angle, the light emitting direction of any light emitting chip deflects towards the direction close to the symmetrical plane.
Through adopting above-mentioned technical scheme, when the chip rack is to being close to the symmetry plane or keep away from the symmetry plane direction rotation, the light-emitting direction of chip also draws in or diverges, realizes the effect of peeping-proof, and specific angle of drawing in can be adjusted in a flexible way as required, makes display device's light-emitting more be fit for user's the looking, alleviates with eyestrain on peeping-proof basis.
Optionally, as the distance between the chip frame and the symmetry plane increases, the difference between the first angle and the second angle corresponding to the chip frame is greater, and the first angle corresponding to the chip frame is equal to the second angle.
By adopting the technical scheme, the deflection angles of the light emitting chips are different, and the deflection amplitude is larger when the deflection angle is farther from the symmetry plane, so that the folded light is not parallel light, but focused light converged on a certain line of the symmetry plane, and the viewing experience is better.
Optionally, the driving assembly includes a pair of chute rods parallel arranged at two ends of the chip frame, the hinge is located at one end of the chip frame far away from the light-emitting chip, each chip frame further includes a sliding key arranged at two ends of the chip frame, and the sliding keys are slidably matched in the chute rods; when the chute rod is far away from or near the bottom plate, the chip rack rotates around the hinge.
Through adopting above-mentioned technical scheme, when the spout frame kept away from or is close to the bottom plate, can realize the synchronous adjustment to each chip frame, the rotation range of each chip frame is only relevant rather than the angle, and when the spout frame removed fixed distance, the play light direction change angle of each luminescence chip was fixed proportion, and it is more convenient to adjust, more is favorable to the collection of light.
Optionally, the driving assembly comprises at least two motors, and the motors are used for independently controlling the two ends of the chute rod to be far away from or close to the bottom plate.
Through adopting above-mentioned technical scheme, when each motor synchronous control spout pole, make it parallel keep away from or be close to the bottom plate, the light of each luminescence chip converges to the symmetry plane, and when asynchronous between the motor, spout pole and bottom plate become the contained angle, then the focus skew that gathers of light is to the one side that the spout pole is close to the bottom plate, realizes more nimble visual angle adjustment and peep-proof.
Optionally, the driving assembly includes the push pedal, the push pedal set up in the bottom plate deviates from one side of luminous chip, and in the push pedal that belongs to with the chip frame one-to-one sets up the push hole, the chip frame passes the bottom plate with run through the push hole, works as the push pedal is kept away from or is close to the bottom plate, the chip frame is rotatory around the hinge.
Through adopting above-mentioned technical scheme, drive assembly sets up in the one side that the bottom plate deviates from the luminescence chip, can realize the nimble adjustment of visual angle equally, has reduced the thickness that the bottom plate is close to luminescence chip one side moreover.
Optionally, the chip carrier and the pusher plate are made of a thermally conductive material.
Through adopting above-mentioned technical scheme, the produced heat of luminous chip is through chip frame direction push pedal, realizes efficient heat dissipation, prevents the heat gathering.
Optionally, the light emitting chips are distributed in groups, the light emitting chips in the same group are arranged at equal intervals and extend in a direction parallel to the axis of the hinge, and each chip rack is distributed with one group of light emitting chips or multiple groups of light emitting chips.
By adopting the technical scheme, the number of the chip frames can be adjusted according to the actual production line and the cost budget.
In a second aspect, the present application provides a peep-proof display device.
The application provides a peep-proof display device, which adopts the following technical scheme:
A peep-proof display device comprises a bottom plate, a rotating assembly, a light-emitting chip and a driving assembly; the rotating assembly comprises a hinge and a chip rack which is arranged corresponding to the hinge, the chip rack and the bottom plate are rotatably connected through the hinge, and the connecting line of the middle point of each hinge and the geometric center of the bottom plate is a perpendicular bisector of the axis of the hinge; the light-emitting chip is arranged on one side of the chip frame, which is away from the bottom plate; the drive assembly includes a plurality of chute frames, each of which is traversed by a plurality of the chip frames, the chip frames rotating about the hinge when the chute frames are either away from or proximate to the base plate.
By adopting the technical scheme, when the light emitting directions of the light emitting chips are folded, the light is converged at one point, so that the peep-proof effect is enhanced, and meanwhile, the eyestrain caused by a large-size screen is improved.
Optionally, when the chute frame is closest to the bottom plate, the chute frame is parallel to the bottom plate, and the light emitting surface of the light emitting chip on the chip frame is parallel to the bottom plate; when the chute frame is far away from the bottom plate, the chute frame is parallel to the bottom plate and forms an included angle with the bottom plate, and the two states are used for realizing non-uniform adjustment of each chip frame.
By adopting the technical scheme, when the chute frame is parallel to the bottom plate, the light emitting directions of the light emitting chips are converged on the normal line of the bottom plate in the geometric center of the over-bottom plate; when the chute frame and the bottom plate form an angle, the light emitting directions of the light emitting chips are deviated towards one side, close to the bottom plate, of the chute frame, so that a directional visual angle and a peep-proof effect are realized.
Optionally, the maximum power of the light emitting chip increases as approaching the edge of the bottom plate.
By adopting the technical scheme, the light-emitting chip far away from the user has larger light-emitting power, and after the light-emitting chip is transmitted farther, the light intensity similar to that of the lower power light-emitting chip at the lower beam end is observed by the user, so that the brightness of the image in the visual field is uniform, and the user can feel more comfortable.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The driving component drives the rotating component, the chip frame rotates around the hinge, so that the light emitting angle of the light emitting chip is switched between parallel and furling, and the specific furling angle can be adjusted at will, thereby realizing the compromise of peep prevention and eye experience;
2. When the driving assembly adjusts the visual angle of the display device, the chip frame at the edge can rotate by a larger angle, so that the inclination angle of the light emitted by the light emitting chip increases gradually from the center to the two sides of the display device, and the viewing experience of a user is more comfortable;
3. besides uniform folding and divergence, in some special use scenes, such as an auxiliary screen or a combined screen, the light emergent angle of the whole display device can be inclined to one side by independently adjusting one end of the chute rod, so that the display device is more suitable for the use requirement in the side direction;
4. in addition to the gathering and the divergence in the left-right direction, gathering from the periphery to the center can be realized, and more excellent watching experience can be provided when a large-size display screen is watched in a short distance;
5. The main view angle can deviate to any direction around on the basis of being perpendicular to the bottom plate, and the device is suitable for various use scene requirements.
Drawings
Fig. 1 is an overall schematic diagram of a peep-proof display device in a parallel light-emitting state according to embodiment 1 of the present application;
fig. 2 is a side view of a peep-proof display device in a parallel light-emitting state according to embodiment 1 of the present application;
Fig. 3 is an overall schematic diagram of a peep-proof display device in a peep-proof state according to embodiment 1 of the present application;
fig. 4 is a side view of a peep-proof display device according to embodiment 1 of the present application in a peep-proof state;
Fig. 5 is an overall schematic diagram of a peep-proof display device in a parallel light-emitting state according to embodiment 2 of the present application;
fig. 6 is a side view of a peep-proof display device in a parallel light-emitting state according to embodiment 2 of the present application;
Fig. 7 is an overall schematic diagram of a peep-proof display device in a peep-proof state according to embodiment 2 of the present application;
Fig. 8 is a side view of a peep-proof display device according to embodiment 2 of the present application in a peep-proof state;
fig. 9 is an overall schematic diagram of a peep-proof display device in a parallel light-emitting state according to embodiment 3 of the present application;
fig. 10 is a side view of a peep-proof display device in a parallel light-emitting state according to embodiment 3 of the present application;
Fig. 11 is an overall schematic diagram of a peep-proof display device in a peep-proof state according to embodiment 3 of the present application;
Fig. 12 is a side view of a peep-proof display device according to embodiment 3 of the present application in a peep-proof state.
Reference numerals illustrate:
1. A bottom plate; 2. a rotating assembly; 21. a hinge; 22. a chip rack; 3. a light emitting chip; 4. a drive assembly; 41. a chute rod; 42. a motor; 43. a push plate; 44. and a chute frame.
Detailed Description
The application is described in further detail below with reference to fig. 1-12.
The embodiment of the application discloses an anti-peeping display device.
Example 1
Referring to fig. 1 and 2, the peep-proof display device includes a base plate 1, a rotating assembly 2, a light emitting chip 3 and a driving assembly 4, wherein the light emitting chip 3 is arranged on the rotating assembly 2, and the driving assembly 4 drives the rotating assembly 2 to enable the light emitting chip 3 to rotate relative to the base plate 1 so as to change a light emitting angle, thereby achieving the peep-proof effect.
The rotating assemblies 2 comprise a hinge 21 and a chip carrier 22, each group of rotating assemblies 2 comprising one chip carrier 22 and one or more hinges 21, the same group of hinges 21 being coaxially arranged in case of a plurality of hinges 21. The chip frame 22 and the bottom plate 1 are rotatably connected through the hinges 21, each group of rotating components 2 is symmetrically distributed on one side surface of the bottom plate 1, the symmetrical plane is a normal plane of the bottom plate 1 which passes through the midpoint connecting line of the two long sides of the bottom plate 1, and the axes of all the hinges 21 are parallel to the symmetrical plane.
Each chip carrier 22 comprises a carrier section and a driving section connected with each other, wherein the driving section is rotatably connected with the hinge 21, and optionally, the carrier section is a long plate structure extending along a direction parallel to the short side of the base plate 1, and the driving section is two bearing rods arranged at two ends of the carrier section. Viewed from a direction parallel to the axial direction of the hinge 21, the bearing sections and the driving sections form an L-shape, when all the chip frames 22 are rotated to a position farthest from the symmetry plane, one surface of each bearing section facing away from the bottom plate 1 is parallel to the bottom plate 1, and the included angle between the driving section and the bottom plate 1 gradually decreases with distance from the symmetry plane, in other words, the included angles between the two sides of the L-shape increase in a direction away from the symmetry plane.
The light emitting chips 3 are arranged on the chip frame 22 and are also symmetrically distributed about the symmetry plane, specifically, the groups of light emitting chips 3 are arranged on one surface of the bearing section of the chip frame 22, which is away from the bottom plate 1, the light emitting chips 3 of the same group are distributed at equal intervals in the direction parallel to the axis of the hinge 21, and one group or multiple groups of light emitting chips 3 are arranged on the same chip frame 22. The types of the light emitting chips 3 can be LED chips, mini LED chips and the like, the packaging mode of the light emitting chips 3 can be one or more of forward mounting, flip mounting or vertical structure, on the premise of keeping the electric connection of the light emitting chips 3, circuit arrangement can be set according to requirements, and optionally, the bottom plate 1 and the chip frame 22 are both circuit boards, and the bottom plate 1 and the chip frame 22 are connected through gold wires or kept connected through abutted exposed electrodes.
Preferably, the types of the light emitting chips 3 are not uniform, and the light emitting chips 3 which are farther from the symmetry plane have larger rated power, so that a user can obtain more uniform image effect and more comfortable eye experience when watching near the symmetry plane.
Two sliding keys are respectively arranged at two ends of the driving section of each chip frame 22, the sliding keys are preferably cylindrical or elliptic, and in the case that the driving section is provided with two bearing rods, the two sliding keys of each chip frame 22 are arranged at one side of the bearing column of the chip frame, which is far away from the light-emitting chip 3.
Referring to fig. 3 and 4, the angle of the chip frame 22 is arbitrarily adjusted between the first angle and the second angle, when the chip frame 22 is at the first angle, each light emitting chip 3 is at the position farthest from the symmetry plane, and the light emitting direction of the light emitting chip 3 is perpendicular to the bottom plate 1. When the chip frame 22 is at the second angle, the light emitting direction of each light emitting chip 3 deflects towards the direction close to the symmetry plane, so that the gathering of the light emitting and the peeping prevention effect are realized.
It should be noted that, because the included angles between the driving sections of the chip frames 22 and the base plate 1 are different, the corresponding first angles and second angles of the chip frames 22 are also different, specifically, the farther the chip frames 22 are from the symmetry plane, the larger the included angles of the first angles and the second angles are.
The driving assembly 4 comprises a motor 42 and two sliding groove rods 41, wherein the two sliding groove rods 41 are arranged at two ends of the chip frame 22 in parallel, the connecting line of the intersection point of the two sliding groove rods 41 and the symmetrical plane is parallel and equal to the connecting line of the midpoints of the two long sides of the bottom plate 1, and the sliding key can be slidably matched in the sliding groove of the sliding groove rods 41. Two sets of motors 42 are disposed at two ends of the chute bar 41 for independently controlling the two ends of the chute bar 41 to be away from or close to the bottom plate 1.
In another embodiment of the present embodiment, the motor 42 is disposed between the two chip frames 22 at the edge and the bottom plate 1, and the motor 42 drives the two chip frames 22 at the edge to rotate, and the corresponding sliding keys push the sliding chute bars 41 away from or close to the bottom plate 1, so as to drive the other chip frames 22 to rotate.
It should be noted that the motor 42 is only one embodiment of the driving assembly 4, and the power for moving the chute rod 41 may also be derived from a crank block, a screw nut, a micro hydraulic cylinder, etc. In another embodiment of the present embodiment, the chute rod 41 is connected to the bottom plate 1 by a memory alloy spring, when the spring is in a low temperature state, each chip frame 22 is at a first angle, and as the display device heats up with the use of the screen, the spring gradually stretches to push the chute rod 41 away from the bottom plate 1, and the light emitting direction of each light emitting chip 3 is folded toward the symmetry plane. The memory alloy can exert the advantages in some special scenes, for example, the game player who helps the curved screen 3D dizziness spends the initial dizziness time, namely, in the stage of starting the game initially and most easily generating 3D dizziness, plane light emitting which is more easily adapted is adopted, and as the game progresses, after the player is fully immersed in the game, the light emitting visual angle is folded to be similar to the concentrated visual angle of the curved screen, so that the probability of generating 3D dizziness is reduced while better game visual field is provided.
When the two sets of motors 42 drive the chute rods 41 to be positioned at the position closest to the bottom plate 1, the chute rods 41 are parallel to the bottom plate 1, the chip frames 22 are positioned at a first angle, and the light emitting directions of the light emitting chips 3 are perpendicular to the bottom plate 1; when the two sets of motors 42 drive the chute bars 41 to be located at the position farthest from the base plate 1, the chute bars 41 are parallel to the base plate 1, and each chip rack 22 is located at the second angle. When the two groups of motors 42 synchronously push the chute rods 41 to be far away from or close to the bottom plate 1 on the premise of being parallel to the bottom plate 1, the light emitting directions of the light emitting chips 3 are uniformly dispersed or folded; when the two sets of motors 42 do not run synchronously, the chute bar 41 is no longer parallel to the base plate 1, and the converging point of the light-emitting direction is shifted toward the end of the chute bar 41 closer to the base plate 1.
The implementation principle of the embodiment 1 is as follows:
When the chute rod 41 is positioned at the position closest to the bottom plate 1 and is parallel to the bottom plate 1, each chip frame 22 is positioned at a first angle, and the light emitting direction of each light emitting chip 3 is perpendicular to the bottom plate 1; when the motor 42 drives the chute rod 41 to be far away from the bottom plate 1, the chip frame 22 rotates towards the direction close to the symmetry plane, the narrowing and peeping prevention of the visual angle are realized, and the specific rotation angle is regulated by the displacement distance of the chute rod 41, so that the flexible regulation of the visual angle can be realized, and better viewing experience of the main visual angle can be obtained on the premise of ensuring the peeping prevention effect as required.
Because the directions of the chip frames 22 are different, the acting force directions of the sliding key and the sliding groove rod 41 are different, specifically, under the condition that the sliding key moves by the same distance in the direction perpendicular to the bottom plate 1, the swinging angle of the chip frame 22 which is farther from the symmetry plane is larger, and the angle change of the light emitting direction of the corresponding light emitting chip is also larger, so that the light emitted by each light emitting chip after being folded is not parallel light but converged, and is preferably converged on a certain line parallel to the midpoint connecting line of the two long sides of the bottom plate 1 on the symmetry plane.
When the two sets of motors 42 are asymmetrically adjusted, the chute rod 41 is not parallel to the bottom plate 1, so that the light is not folded to the symmetrical plane, but is deflected to the side of the chute rod 41 closer to the bottom plate 1, on one hand, the better viewing angles of the auxiliary screen and the combined screen can be realized, and on the other hand, for different application occasions, such as stations close to a corridor, the targeted deflection viewing angle can play a more excellent peep-proof role.
Example 2
Referring to fig. 5 and 6, this embodiment is different from embodiment 1 in that:
The driving assembly 4 includes a push plate 43, and the hinge 21 is disposed at a middle section of the driving part of the chip frame 22.
The pushing plate 43 is arranged on one side of the bottom plate 1 away from the light emitting chip 3, and pushing holes are formed in the pushing plate 43 in one-to-one correspondence with the chip frames 22.
Referring to fig. 7 and 8, the driving portion of the chip frame 22 passes through and through the push hole, and when the push plate 43 is away from or near the base plate 1, the chip rotates about the hinge 21.
Preferably, the chip carrier 22 and the pusher plate 43 are made of a thermally conductive material such as red copper, and silicone grease is applied within the push holes to enhance thermal conductivity between the chip carrier 22 and the pusher plate 43.
The implementation principle of the embodiment 2 is as follows:
Compared with the embodiment 1 in which the driving component 4 is disposed on the side of the bottom plate 1 close to the light emitting chip 3, the driving component 4 of the embodiment is disposed on the side of the bottom plate 1 away from the light emitting chip 3, and the contact area between the rotating component 2 and the driving component 4 is increased, so that the heat conductivity of the rotating component 2 and the driving component 4 is enhanced, and therefore, on the premise of realizing the free adjustment of the peep angle, in the embodiment, the heat generated by the light emitting chip 3 is guided to the push plate 43 via the chip rack 22, so that the heat can be dissipated more effectively, and the accumulation of the heat in the display device is prevented.
The embodiment of the application also discloses a peep-proof display device.
Example 3
Referring to fig. 9 and 10, the peep-proof display device includes a base plate 1, a rotating assembly 2, a light emitting chip 3 and a driving assembly 4, wherein the light emitting chip 3 is disposed on the rotating assembly 2, and the driving assembly 4 drives the rotating assembly 2 to rotate the light emitting chip 3 relative to the base plate 1 so as to change a light emitting angle, thereby achieving the peep-proof effect.
The rotating assembly 2 comprises hinges 21 and chip frames 22 which are arranged corresponding to the hinges 21, the chip frames 22 and the base plate 1 are rotatably connected through the hinges 21, and the connecting line of the midpoint of each hinge 21 and the geometric center of the base plate 1 is a perpendicular bisector of the axis of the hinge 21.
Each chip carrier 22 comprises a carrier section and a drive section connected to each other, wherein the drive section is rotatably connected to the hinge 21. Each chip carrier 22 is formed in an L-shape as seen from a direction parallel to the axial direction of the hinge 21, the bearing section and the driving section, when all the chip carriers 22 are rotated to a position farthest from the geometric center of the base plate 1, the faces of the bearing sections facing away from the base plate 1 are parallel to each other with the base plate 1, and the angle between the driving section and the base plate 1 gradually decreases as going away from the geometric center of the base plate 1, in other words, the angle between the two sides of the L-shape increases in a direction going away from the geometric center of the base plate 1.
The light emitting chip 3 is arranged on the chip frame 22, specifically, the light emitting chip 3 is arranged on one surface of the bearing section of the chip frame 22, which is away from the bottom plate 1, the light emitting chip 3 can be an LED chip, a mini LED chip and the like, the packaging mode of the light emitting chip 3 can be one or more of a forward mounting structure, a flip mounting structure or a vertical structure, on the premise of keeping the electric connection of the light emitting chips 3, the circuit arrangement can be set as required, and the bottom plate 1 and the chip frame 22 are both circuit boards, and the bottom plate 1 and the chip frame 22 are connected through gold wires or kept connected through abutted exposed electrodes.
Preferably, the types of the light emitting chips 3 are not uniform, and the light emitting chips 3 further from the symmetry plane have a higher rated power, so that a user can obtain a more uniform image effect and a more comfortable eye experience when viewing near the geometric center of the base plate 1.
Referring to fig. 11 and 12, the angle of the chip frame 22 is arbitrarily adjusted between the first angle and the second angle, when the chip frame 22 is at the first angle, each light emitting chip 3 is at the farthest position from the geometric center of the base plate 1, and the light emitting direction of the light emitting chip 3 is perpendicular to the base plate 1. When the chip frame 22 is at the second angle, the light emitting direction of each light emitting chip 3 deflects towards the direction close to the geometric center of the bottom plate 1, so that the gathering of the light emitting and the peep preventing effect are realized.
It should be noted that, because the included angles between the driving sections of the chip frames 22 and the base plate 1 are different, the corresponding first angles and second angles of the chip frames 22 are also different, specifically, the farther the chip frames 22 are from the geometric center of the base plate 1, the larger the included angles of the first angles and the second angles are.
The drive assembly 4 includes a plurality of chute frames 44, and each chute frame 44 is nested layer by layer from the edge of the base plate 1 toward the geometric center of the base plate 1. Each chute frame 44 is traversed by the drive portions of a plurality of chip carriers 22, and when the chute frame 44 is moved away from or toward the base plate 1, the drive portions are pushed to rotate the chip carriers 22 about the hinges 21. Preferably, the driving portion of the chip carrier 22 is a cylindrical support rod.
At least three sets of motors 42 drive movement of the chute frames 44, and preferably four sets of motors 42 drive four corners of each chute frame 44, and optionally, each chute frame 44 is relatively fixed and coplanar.
When the chute frame 44 is positioned at the position closest to the bottom plate 1, the chute frame 44 is parallel to the bottom plate 1, and each chip frame 22 is positioned at a first angle, and the light emitting direction of each light emitting chip 3 is perpendicular to the bottom plate 1; the chute frame 44 is positioned furthest from the base plate 1, the chute frame 44 is parallel to the base plate 1, and each chip rack 22 is positioned at a second angle.
When each group of motors 42 synchronously push the chute frames 44 to be far away from or close to the bottom plate 1 on the premise of being parallel to the bottom plate 1, the light emitting directions of the light emitting chips 3 are uniformly dispersed or folded; when the motors 42 of the respective groups are not operated synchronously, the chute frame 44 is no longer parallel to the base plate 1, and the converging point of the light-emitting direction is shifted toward the side of the chute frame 44 closer to the base plate 1.
The implementation principle of the embodiment 3 is as follows:
When the chute frame 44 is located at the position closest to the bottom plate 1 and parallel to the bottom plate 1, each chip frame 22 is located at a first angle, and the light emitting direction of each light emitting chip 3 is perpendicular to the bottom plate 1; when the motor 42 drives the chute frame 44 to rotate away from the bottom plate 1, the chip frame 22 rotates towards the direction close to the geometric center of the bottom plate 1, so that the narrowing and peeping of the visual angle are realized, and the specific rotation angle is regulated by the displacement distance of the chute frame 44, so that the flexible regulation of the visual angle can be realized, and better viewing experience of the main visual angle can be obtained on the premise of ensuring the peeping prevention effect as required.
Because the directions of the chip frames 22 are different, the acting force directions of the driving part and the chute frame 44 are different, specifically, when the chute frame 44 moves the same distance in the direction perpendicular to the bottom plate 1, the farther the chip frame 22 is from the geometric center of the bottom plate 1, the larger the swinging angle of the chip frame 22 is, and the larger the angle change of the light emitting direction of the corresponding light emitting chip is, so that the light emitted by the folded light emitting chips is not parallel light but converged light, and preferably converged at a certain point on the normal line of the bottom plate 1 passing through the geometric center of the bottom plate 1.
When the motors 42 of each group are asymmetrically adjusted, the chute frame 44 is no longer parallel to the bottom plate 1, so that the light is not drawn to the geometric center of the bottom plate 1, but is deflected to the side of the chute frame 44 closer to the bottom plate 1, on one hand, the better viewing angles of the auxiliary screen and the combined screen can be realized, and on the other hand, for different application occasions, such as stations close to the corridor, the targeted deflection viewing angle can play a more excellent role in peeping prevention.
Compared with the embodiments 1 and 2, the light emitting direction of the present embodiment converges at one point instead of one line, on one hand, the peep preventing effect is better, and on the other hand, under the condition that the short side of the screen is longer, the viewing experience of the user can be optimized, and the eyestrain can be relieved.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (5)
1. The peep-proof display device is characterized by comprising a bottom plate (1), a rotating assembly (2), a light-emitting chip (3) and a driving assembly (4);
the rotating assembly (2) comprises a hinge (21) and a chip frame (22) which is arranged corresponding to the hinge (21), the chip frame (22) is symmetrically arranged, the symmetry plane is a normal plane of the bottom plate (1) passing through the connecting line of the midpoints of the two long sides of the bottom plate (1), the chip frame (22) and the bottom plate (1) are rotatably connected through the hinge (21), and the axis of the hinge (21) is parallel to the symmetry plane;
the light-emitting chip (3) is arranged on one side, away from the bottom plate (1), of the chip frame (22), and the driving assembly (4) drives the chip frame (22) to rotate around the hinge (21);
The chip frame (22) can be adjusted at will between a first angle and a second angle, under the first angle, the light emitting direction of any light emitting chip (3) is vertical to the bottom plate (1), and under the second angle, the light emitting direction of any light emitting chip (3) deflects towards the direction close to the symmetrical plane;
The driving assembly (4) comprises a pair of chute rods (41) which are arranged at two ends of the chip frame (22) in parallel, the hinge (21) is positioned at one end of the chip frame (22) away from the light-emitting chip (3), each chip frame (22) further comprises a sliding key which is arranged at two ends of the chip frame (22), and the sliding keys are in sliding fit in the chute rods (41);
when the chute rod (41) is far away from or close to the bottom plate (1), the chip rack (22) rotates around the hinge (21);
the driving assembly (4) comprises at least two motors (42), and the motors (42) are used for independently controlling the two ends of the chute rod (41) to be far away from or close to the bottom plate (1).
2. The peep-proof display device according to claim 1, characterized in that the chip carrier (22) is located exactly on the symmetry plane with a greater difference between the first angle and the second angle, which corresponds to the chip carrier (22), with an increasing distance of the chip carrier (22) from the symmetry plane, which corresponds to the first angle being equal to the second angle.
3. The peep-proof display device according to any one of claims 1-2, characterized in that the light emitting chips (3) are distributed in groups, that the light emitting chips (3) of the same group are arranged equidistantly and extend in a direction parallel to the axis of the hinge (21), and that each chip carrier (22) is distributed with one group of the light emitting chips (3) or groups of the light emitting chips (3).
4. The peep-proof display device is characterized by comprising a bottom plate (1), a rotating assembly (2), a light-emitting chip (3) and a driving assembly (4);
The rotating assembly (2) comprises hinges (21) and chip frames (22) which are arranged corresponding to the hinges (21), the chip frames (22) and the bottom plate (1) are rotatably connected through the hinges (21), and a connecting line between the midpoint of each hinge (21) and the geometric center of the bottom plate (1) is a perpendicular bisector of the axis of the hinge (21);
the light-emitting chip (3) is arranged on one side of the chip frame (22) away from the bottom plate (1);
The drive assembly (4) comprises a plurality of chute frames (44), each chute frame (44) being traversed by a plurality of the chip carriers (22), the chip carriers (22) rotating about the hinge (21) when the chute frames (44) are distanced from or close to the base plate (1);
the maximum power of the light emitting chip (3) increases as it approaches the edge of the base plate (1).
5. The peep-proof display device according to claim 4, characterized in that the chute frame (44) is parallel to the base plate (1) when the chute frame (44) is closest to the base plate (1), and the light-emitting surface of the light-emitting chip (3) on the chip frame (22) is parallel to the base plate (1);
When the chute frame (44) is far away from the bottom plate (1), the chute frame (44) has two states of being parallel to the bottom plate (1) and forming an included angle with the bottom plate (1) for realizing non-uniform adjustment of each chip frame (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311334455.2A CN117374059B (en) | 2023-10-14 | 2023-10-14 | Peep-proof display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311334455.2A CN117374059B (en) | 2023-10-14 | 2023-10-14 | Peep-proof display device |
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| CN117374059B true CN117374059B (en) | 2024-05-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009192884A (en) * | 2008-02-15 | 2009-08-27 | Oki Electric Ind Co Ltd | Display apparatus with peep-preventing function |
| CN101561583A (en) * | 2008-04-14 | 2009-10-21 | 奇美电子股份有限公司 | Backlight module and liquid crystal display device |
| CN108957853A (en) * | 2018-07-18 | 2018-12-07 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display device |
| CN212749475U (en) * | 2020-08-03 | 2021-03-19 | 昆山龙腾光电股份有限公司 | Lamp panel, backlight module and peep-proof display device |
-
2023
- 2023-10-14 CN CN202311334455.2A patent/CN117374059B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009192884A (en) * | 2008-02-15 | 2009-08-27 | Oki Electric Ind Co Ltd | Display apparatus with peep-preventing function |
| CN101561583A (en) * | 2008-04-14 | 2009-10-21 | 奇美电子股份有限公司 | Backlight module and liquid crystal display device |
| CN108957853A (en) * | 2018-07-18 | 2018-12-07 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display device |
| CN212749475U (en) * | 2020-08-03 | 2021-03-19 | 昆山龙腾光电股份有限公司 | Lamp panel, backlight module and peep-proof display device |
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| CN117374059A (en) | 2024-01-09 |
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