CN115016169A - Liquid crystal television with backlight source and lens - Google Patents
Liquid crystal television with backlight source and lens Download PDFInfo
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- CN115016169A CN115016169A CN202210001547.8A CN202210001547A CN115016169A CN 115016169 A CN115016169 A CN 115016169A CN 202210001547 A CN202210001547 A CN 202210001547A CN 115016169 A CN115016169 A CN 115016169A
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- liquid crystal
- fixed
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
Abstract
The invention discloses a liquid crystal television with a backlight light source and a lens, comprising: the television comprises a television shell, wherein a liquid crystal panel is arranged in the television shell and connected with a reflecting layer, a lens body is arranged between the reflecting layer and the liquid crystal panel, a light source fixing cavity is arranged in the lens body, and supporting legs are arranged outside the television shell. According to the invention, the LED light source is arranged in the light source fixing cavity arranged at the central position of the lens body and irradiates the light reflecting layer and the liquid crystal panel, light irradiating the light reflecting layer is reflected by the light reflecting layer to vertically irradiate the liquid crystal panel, and the light emitted by the single light source is refracted by the lens body to be emitted from the lens body along a specific path to supplement light for the whole liquid crystal panel, so that the problems of high cost, complex assembly and high failure rate caused by the fact that a plurality of small LED lamps with low wattage form a backlight assembly when the existing liquid crystal television product needs a backlight with high wattage are solved.
Description
Technical Field
The invention relates to the technical field of liquid crystal televisions, in particular to a liquid crystal television with a backlight light source and a lens.
Background
The liquid crystal is a substance between a solid state and a liquid state, and is a substance in which an organic compound having a regular molecular arrangement is heated to assume a transparent liquid state and a turbid solid state of crystal particles appears after cooling.
Liquid crystal molecules used in liquid crystal displays are arranged like a stick of match, called Nematic liquid crystal, and liquid crystal displays manufactured using such liquid crystal are also called LCDs. In the liquid crystal television, a voltage is applied to a liquid crystal between two glasses to reproduce a picture by a change in molecular arrangement and a change in meandering, and the screen produces a picture by collision of an electron group and forms a picture by transmission and reflection of external light.
More and more liquid crystal televisions are added with dynamic contrast and natural light adjusting technologies, so that the display effect of the picture is improved, and the trailing phenomenon of the dynamic picture is effectively improved. In addition, the intelligent sound effect is added while the picture display effect is improved, and through the addition of the technology, a user can enjoy the audio-visual effect like a cinema. More liquid crystal televisions have the product attribute of an entertainment machine at the same time, the entertainment function is achieved, users can play the mainstream video files, information can be browsed on line and software can be upgraded through network connection, and daily use requirements of the users are fully met.
When the existing liquid crystal television product needs a 40W backlight, 20-40 small LED lamps of 1W-2W form the backlight, so that the cost is high, the assembly is complex, and the failure rate is high.
Disclosure of Invention
The invention provides a liquid crystal television with a backlight light source and a lens, which is used for solving the problems in the background technology: when an existing liquid crystal television product needs a 40W backlight, 20-40 small LED lamps of 1W-2W form the backlight, and the problems of high cost, complex assembly and high failure rate are solved.
A liquid crystal television with a backlight source and a lens, comprising: the liquid crystal display television comprises a television shell, wherein a liquid crystal panel is arranged in the television shell and connected with a reflecting layer, a lens body is arranged between the reflecting layer and the liquid crystal panel, and a light source fixing cavity is arranged in the lens body.
Preferably, the lens body is fixed in the center of the reflecting layer, the upper end of the lens body is hemispherical, and the cross section of the lower end of the lens body is rectangular.
Preferably, the light source fixing cavity is arranged at the central position of the lens body and is in an ellipsoid shape.
Preferably, an LED light source is disposed in the light source fixing cavity.
Preferably, the reflecting layer is hemispherical, and the edge of the reflecting layer is tightly attached to the edge of the liquid crystal panel.
Preferably, a support leg is arranged outside the television shell, and the support leg is detachably connected with the shell.
Preferably, a direction-changing connecting device is arranged between the supporting leg and the shell, and the supporting leg and the shell are connected through the direction-changing connecting device.
Preferably, the direction-changing connecting device comprises:
the device comprises a motor, a first threaded rod, a moving block, a connecting block, a moving rod, a supporting connecting block, a side plate, a sliding rail, a first rotating shaft, a first rotating plate, a moving wheel, a connecting plate, a second threaded rod, a second rotating plate, a moving plate, a connecting claw, a limiting plate, a second rotating shaft, a connecting rod, a third rotating shaft, a connecting protrusion and an adjusting nut;
the motor is fixed on the outer back surface of the shell, the output end of the motor is fixed with one end of the first threaded rod, the other end of the first threaded rod is rotatably sleeved on the supporting connecting block, and the supporting connecting block is fixed on the outer back surface of the shell;
the moving block is sleeved on the first threaded rod and is in threaded connection with the first threaded rod;
one side of the connecting block is fixed on the moving block, and the other side of the connecting block is fixed with one end of the moving rod;
the moving rod is bent;
the other end of the moving rod is rotatably connected with one end of the second rotating plate through the first rotating shaft, and the other end of the second rotating plate is fixedly connected with the first rotating plate;
the first rotating plate is provided with the moving wheel;
the side plate is fixed on the back surface of the outer shell and is positioned on one side of the first threaded rod, the slide rail is arranged on the side plate, the moving wheel is connected to the slide rail in a sliding mode, the slide rail is Z-shaped, and the distance between two parallel sections of the slide rail is the same as the length of the second rotating plate;
the connecting plate is fixed on the first rotating plate, the connecting plate is fixed with one end of the second threaded rod, and the other end of the second threaded rod is fixed on the limiting plate;
one end of the connecting plate, which is far away from the first rotating plate, is detachably connected with the supporting leg;
the moving plate is arranged between the connecting plate and the limiting plate and is sleeved on the second threaded rod;
the second threaded rod is sleeved with the adjusting nut, and the adjusting nut is positioned below the moving plate;
the movable plate both ends all rotate and are connected with connect the claw, it is provided with to connect claw middle section position connect protrudingly, connect protrudingly through the third pivot rotate connect in connecting rod one end, the connecting rod other end passes through the second pivot with the limiting plate rotates and connects.
Preferably, a protection device is arranged between the liquid crystal panel and the television shell, and the protection device is used for protecting the liquid crystal panel.
Preferably, the guard device comprises:
the device comprises a linkage block, a first connecting shaft, a first pulley, a second connecting shaft, a second pulley, a third connecting shaft, a third pulley, a connecting rope, a rotating shell, a first limiting block, a fixed shaft, a second limiting block and a spring;
the four corners of the liquid crystal panel are respectively fixed with the linkage block, and the linkage block is connected with the first pulley through the first connecting shaft;
the inner wall of the television shell is connected with the second pulley through the second connecting shaft, and the inner wall of the television shell is connected with the third pulley through the third connecting shaft;
the second connecting shaft is fixed with one end of the connecting rope, and the connecting rope sequentially surrounds the first pulley, the second pulley and the third pulley;
the outer wall of the rotating shell is provided with a wire groove, the other end of the connecting rope is fixed in the wire groove arranged on the outer wall of the rotating shell, and the connecting rope and a connecting line of the connecting rope, which is connected to the position in the wire groove on the outer wall of the rotating shell, to the fixed shaft are vertical;
the rotating shell is internally provided with the fixed shaft, and the fixed shaft is fixed on the inner wall of the television shell;
the first limiting block is fixed on the inner wall of the rotating shell;
the second limiting block is fixed on the fixed shaft and is positioned in the rotating shell;
the first limiting blocks and the second limiting blocks are alternately arranged;
the spring is arranged between the first limiting block and the second limiting block, one end of the spring is fixed to the first limiting block, and the other end of the spring is fixed to the second limiting block.
Drawings
FIG. 1 is a schematic top view of a backlight source structure according to the present invention;
FIG. 2 is a schematic top view of a lens body structure according to the present invention;
FIG. 3 is a schematic diagram of the position of the liquid crystal panel of the present invention relative to the TV housing;
FIG. 4 is a schematic side view of the vertical structure of the direction changing attachment of the present invention;
FIG. 5 is a side view of the horizontal structure of the direction changing connector of the present invention;
FIG. 6 is a schematic view of a partial structure of the direction changing attachment of the present invention;
FIG. 7 is a schematic side view of the relative position of the protective device of the present invention;
FIG. 8 is a front view of the protective device of the present invention;
fig. 9 is a partial front view of the protective device structure of the present invention.
In the figure: 1. a light-reflecting layer; 2. a lens body; 3. a liquid crystal panel; 4. a light source fixing cavity; 5. a television housing; 6. supporting legs; 101. a motor; 102. a first threaded rod; 103. a moving block; 104. connecting blocks; 105. a travel bar; 106. supporting the connecting block; 107. a side plate; 108. a slide rail; 109. a first rotating shaft; 110. a first rotating plate; 111. a moving wheel; 112. a connecting plate; 113. a second threaded rod; 114. a second rotating plate; 115. moving the plate; 116. a connecting claw; 117. a limiting plate; 118. a second rotating shaft; 119. a connecting rod; 120. a third rotating shaft; 121. a connecting protrusion; 122. adjusting the nut; 201. a linkage block; 202. a first connecting shaft; 203. a first pulley; 204. a second connecting shaft; 205. a second pulley; 206. a third connecting shaft; 207. a third pulley; 208. connecting ropes; 209. rotating the shell; 210. a first stopper; 211. a fixed shaft; 212. a second limiting block; 213. a spring.
Detailed Description
The descriptions of "first," "second," etc. in this specification are for illustrative purposes only, and do not refer specifically to an order or sequence or to a limitation thereof, but rather are used merely to distinguish between similar items or operations that are described in technical terms, and are not meant to indicate or imply relative importance to such items or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Example 1
Referring to fig. 1-3, an embodiment of the present invention is shown: a liquid crystal television with a backlight source and a lens, comprising: the liquid crystal display television comprises a television shell 5, wherein a liquid crystal panel 3 is arranged in the television shell 5, the liquid crystal panel 3 is connected with a reflecting layer 1, a lens body 2 is arranged between the reflecting layer 1 and the liquid crystal panel 3, and a light source fixing cavity 4 is arranged in the lens body 2.
Preferably, the lens body 2 is fixed in the center of the reflecting layer 1, the upper end of the lens body 2 is hemispherical, and the cross section of the lower end of the lens body is rectangular.
Preferably, the light source fixing cavity 4 is arranged at the central position of the lens body 2, and the light source fixing cavity 4 is ellipsoidal.
Preferably, an LED light source is disposed in the light source fixing cavity 4.
Preferably, the reflective layer 1 is hemispherical, and the edge of the reflective layer 1 is tightly attached to the edge of the liquid crystal panel 3.
Preferably, support legs 6 are arranged outside the television shell 5, and the support legs 6 are detachably connected with the shell 5.
The working principle and the beneficial effects of the technical scheme are as follows: the reflective layer 1 and the liquid crystal panel 3 are arranged in the television shell 5, the television shell 5 protects the reflective layer 1, the liquid crystal panel 3, the lens body 2 and the light source, the damage condition of the liquid crystal television due to external force is reduced, and the service life of the liquid crystal television is prolonged.
An LED light source (for example, 40W) is arranged in a light source fixing cavity 4 arranged at the center of the lens body 2, and irradiates the light reflecting layer 1 and the liquid crystal panel 3, light irradiating the light reflecting layer 1 is reflected by the light reflecting layer 1 to vertically irradiate the liquid crystal panel 3, light emitted by a single light source is refracted through the lens body 2 to be emitted from the lens body 2 along a specific path and finally irradiate the liquid crystal panel 3, the whole liquid crystal panel 3 is supplemented with light, the light requirement of the liquid crystal panel 3 is met, the problem that when an existing liquid crystal television product needs a high-wattage backlight, a plurality of small LED lamp beads with low wattage need to be combined, each small LED lamp bead supplements light to the local part of the liquid crystal panel 3, and the light supplementing requirement of the liquid crystal panel 3 is met through a plurality of small LED lamp beads, the invention replaces the original backlight source by a high-wattage light source through a special lens, so that the assembly of the liquid crystal television is more convenient, the failure rate is lower, and the invention is a breakthrough of backlight technology.
Example 2
Referring to fig. 4-6, on the basis of the above embodiment 1, a direction-changing connecting device is arranged between the supporting leg 6 and the housing 5, and the supporting leg 6 is connected with the housing 5 through the direction-changing connecting device.
The diversion connecting device includes:
the device comprises a motor 101, a first threaded rod 102, a moving block 103, a connecting block 104, a moving rod 105, a supporting connecting block 106, a side plate 107, a sliding rail 108, a first rotating shaft 109, a first rotating plate 110, a moving wheel 111, a connecting plate 112, a second threaded rod 113, a second rotating plate 114, a moving plate 115, a connecting claw 116, a limiting plate 117, a second rotating shaft 118, a connecting rod 119, a third rotating shaft 120, a connecting protrusion 121 and an adjusting nut 122;
the motor 101 is fixed on the back of the outer side of the shell 5, the output end of the motor 101 is fixed with one end of the first threaded rod 102, the other end of the first threaded rod 102 is rotatably sleeved on the supporting connecting block 106, and the supporting connecting block 106 is fixed on the back of the outer side of the shell 5;
the moving block 103 is sleeved on the first threaded rod 102, and the moving block 103 is in threaded connection with the first threaded rod 102;
one side of the connecting block 104 is fixed on the moving block 103, and the other side of the connecting block 104 is fixed with one end of the moving rod 105;
the moving rod 105 is bent;
the other end of the moving rod 105 is rotatably connected to one end of the second rotating plate 114 through the first rotating shaft 109, and the other end of the second rotating plate 114 is fixedly connected to the first rotating plate 110;
the first rotation plate 110 is provided with the moving wheels 111;
the side plate 107 is fixed on the back surface of the outer shell 5, the side plate 107 is positioned on one side of the first threaded rod 102, the slide rail 108 is arranged on the side plate 107, the moving wheel 111 is connected to the slide rail 108 in a sliding manner, the slide rail 108 is in a Z shape, and the distance between two parallel sections of the slide rail 108 is the same as the length of the second rotating plate 114;
the connecting plate 112 is fixed on the first rotating plate 110, the connecting plate 112 is fixed with one end of the second threaded rod 113, and the other end of the second threaded rod 113 is fixed on the limiting plate 117;
the end of the connecting plate 112 far away from the first rotating plate 110 is detachably connected with the supporting leg 6;
the moving plate 115 is arranged between the connecting plate 112 and the limiting plate 117, and the moving plate 115 is sleeved on the second threaded rod 113;
the second threaded rod 113 is sleeved with the adjusting nut 122, and the adjusting nut 122 is positioned below the moving plate 115;
the two ends of the moving plate 115 are rotatably connected with the connecting claws 116, the middle section positions of the connecting claws 116 are provided with connecting protrusions 121, the connecting protrusions 121 are rotatably connected to one end of the connecting rod 119 through the third rotating shaft 120, and the other end of the connecting rod 119 is rotatably connected to the limiting plate 117 through the second rotating shaft 118.
The working principle and the beneficial effects of the technical scheme are as follows: the motor 101 arranged on the back of the outer shell 5 is started to drive the first threaded rod 102 to rotate, so that the connecting block 104 moves on the first threaded rod 102, the second rotating plate 114 is driven to move through the connecting block 104 and the moving rod 105, at the moment, the moving wheel 111 slides on the sliding rail 108, and along with the increase of the bending height of the sliding rail 108, the moving rod 105 and the second rotating plate 114 rotate relatively, the relative direction between the moving rod 105 and the second rotating plate 114 is changed, namely the direction of the first rotating plate 110 is changed, the vertical direction is changed into the horizontal direction, the moving wheel is always in contact with the sliding rail 108 in the process, the posture is changed through the sliding rail 108, and the moving wheel 111 and the first rotating plate 110 are driven to change;
after the direction of the first rotating plate 110 is changed, the connecting claws 116 become parallel to the wall surface, the connecting claws 116 are arranged on the periphery of the expansion bolt fixed on the wall surface, the distance between the moving plate 115 and the limiting plate 117 is changed by rotating the adjusting nut 122, the distance between the moving plate 115 and the limiting plate 117 is reduced, so that the two connecting claws 116 are close to each other, the two connecting rods 119 are folded, the expansion bolt fixed on the wall surface is clasped, and the fixation of the liquid crystal television relative to the wall surface is completed;
when the liquid crystal television does not need to be fixed on a wall surface, the adjusting nut 122 is rotated to separate the connecting claw 116, the liquid crystal television can be taken down from the wall surface, the first rotating plate 110 is changed into a vertical state through the rotation of the motor 101, the supporting leg 6 is installed on the first rotating plate 110, and the liquid crystal television can be stably erected on a desktop or other horizontal planes;
the invention is provided with the turning connecting device which is connected with the supporting leg 6 and the shell 5, can be changed into a mode of being parallel to the wall surface through changing the direction and is fixed with the wall surface, two installation and fixing modes are met through a single device, the use experience of a user is optimized, the selection difficulty of different installation and fixing modes in use is also solved, the steering and moving of the device are met only through a linear power source, the structure is simplified, the space is saved, and the stability of the structure is improved.
Example 3
Referring to fig. 7 to 9, on the basis of the above embodiment 1, a protection device is disposed between the liquid crystal panel 3 and the television housing 5, and the protection device is used for protecting the liquid crystal panel 3.
The guard device includes:
the linkage mechanism comprises a linkage block 201, a first connecting shaft 202, a first pulley 203, a second connecting shaft 204, a second pulley 205, a third connecting shaft 206, a third pulley 207, a connecting rope 208, a rotating shell 209, a first limiting block 210, a fixed shaft 211, a second limiting block 212 and a spring 213;
the four corners of the liquid crystal panel 3 are fixed with the linkage block 201, and the linkage block 201 is connected with the first pulley 203 through the first connecting shaft 202;
the inner wall of the television housing 5 is connected with the second pulley 205 through the second connecting shaft 204, and the inner wall of the television housing 5 is connected with the third pulley 207 through the third connecting shaft 206;
the second connecting shaft 204 is fixed to one end of the connecting rope 208, and the connecting rope 208 sequentially surrounds the first pulley 203, the second pulley 205 and the third pulley 207;
a wire groove is formed in the outer wall of the rotating shell 209, the other end of the connecting rope 208 is fixed in the wire groove formed in the outer wall of the rotating shell 209, and the connecting rope 208 is perpendicular to a connecting line from the position, in which the connecting rope 208 is connected in the wire groove formed in the outer wall of the rotating shell 209, to the fixed shaft 211;
the rotating shell 209 is internally provided with the fixed shaft 211, and the fixed shaft 211 is fixed on the inner wall of the television shell 5;
the first limiting block 210 is fixed on the inner wall of the rotating shell 209;
the second limit block 212 is fixed on the fixed shaft 211, and the second limit block 212 is located in the rotating shell 209;
the first limiting blocks 210 and the second limiting blocks 212 are alternately arranged;
the spring 213 is arranged between the first limiting block 210 and the second limiting block 212, one end of the spring 213 is fixed with the first limiting block 210, and the other end of the spring 213 is fixed with the second limiting block 212.
The working principle and the beneficial effects of the technical scheme are as follows: the four corners of the liquid crystal panel 3 are all fixed with interlocking blocks 201, when the liquid crystal panel 3 is relatively displaced relative to the television housing 5, the connecting rope 208 drives the first pulley 203 to relatively rotate relative to the first connecting shaft 202, at this time, the first pulley 203 is equivalent to a movable pulley, and the first pulley 203 is close to the second pulley 205, in this process, the displacement of one end of the connecting rope 208, which is connected with the rotating shell 209, is twice of that of the interlocking blocks 201, but the force of one end of the connecting rope 208, which is connected with the rotating shell 209, is only half of that of the interlocking blocks 201, one end of the connecting rope 208, which is connected with the rotating shell 209, drives the rotating shell 209 to rotate around the fixed shaft 211, and the spring 213 between the two first limiting blocks 210, one of which is compressed and the other of which is stretched, performs energy storage treatment on energy causing the displacement of the liquid crystal panel 3, and slowly releases the energy;
set up protector between liquid crystal display panel 3 and television shell 5, couple together liquid crystal display panel 3 and television shell 5 through protector, can effectively avoid liquid crystal display television at the removal in-process, cause liquid crystal display panel 3 to damage because of too big displacement, it will cause the energy accumulation that liquid crystal display panel 3 takes place the displacement for between the television shell 5 to set up protector, slow release, it subtracts the weak for the displacement between the television shell 5 effectively to have guaranteed liquid crystal display panel 3, it is more soft to strike, can carry out abundant protection to liquid crystal display panel 3.
Example 4
On the basis of any one of the above embodiments 1 to 3, further comprising a backlight state detection device, the backlight being provided using the LED light source, the backlight state detection device comprising:
the temperature sensor is arranged on the LED light source and used for detecting the temperature of the LED light source;
the current sensor is arranged on a power supply circuit of the LED light source and used for detecting the current passing through the LED light source each time;
the voltage sensor is arranged on the power supply circuit of the LED light source and used for detecting the voltage acting on the LED light source;
a timer for recording the usage time of the LED light source;
the counter is used for recording the detection times of each sensor;
the alarm is positioned on the television shell 5;
controller, the controller respectively with temperature sensor, current sensor, voltage sensor, time-recorder and alarm electric connection, the controller is based on temperature sensor, current sensor, voltage sensor, time-recorder control alarm work includes:
step 1: the controller obtains the state effect index of the LED light source based on the temperature sensor, the timer and the formula (1):
wherein A is the state effect index of the LED light source, T 0 Based on the temperature difference value T, obtained by the temperature sensor, between the LED light source when not electrified and after the LED light source is electrified stably 1 For the junction temperature of the LED light source, the temperature of the P-N junction will rise when current flows through the LED element, and the temperature of the P-N junction after rise is defined as the junction temperature of the LED, i.e. the junction temperature, T 3 Is the thermodynamic temperature corresponding to zero degree centigrade, t is the total power-on time of the LED light source recorded by the timer, t is the thermodynamic temperature corresponding to zero degree centigrade 0 Taking the unit time as the unit time, wherein ln is a natural logarithm taking e as a base, and e is a natural constant and takes the value of 2.72;
and 2, step: the controller calculates a backlight state index based on the current sensor, the voltage sensor, the counter, and equation (2):
wherein B is a backlight state index,
is the initial luminous flux of the LED light source,
to display the luminous flux required for the backlight, I i Current through the LED light source, U, detected for the ith current sensor i Voltage applied to the LED light source detected by the ith voltage sensor, W 1 In order to display the power required by backlight, W is the rated power of the LED light source, n is the detection times of each sensor recorded by a counter, delta is the electro-optic conversion efficiency of the LED light source, and lg is a logarithm with the base of 10;
and when the backlight state index exceeds the corresponding preset reference value range, the controller controls an alarm to give an alarm.
In the formula (I), the compound is shown in the specification,
for the index of the state effect of the LED light source based on temperature and time,
coefficients corrected based on the influence of the luminous flux on the backlight state,
indicating the index of the basic backlight state.
Supposing that the temperature difference T between the non-electrified state and the electrified stable state of the LED light source is obtained based on the temperature sensor 0 50K, the junction temperature T of the LED light source 1 Thermodynamic temperature T corresponding to zero degrees celsius at 560.15K 3 273.15K, the total power-on time t of the LED light source recorded by the timer is 3000min, and the unit time t is 0 When the natural constant e is 2.72 at 1min, the state effect index a of the LED light source is 3.781.
Initial luminous flux of the LED light source
Lumen, luminous flux required for display backlight
Lumen, 3 times current I through the LED light source detected by the current sensor 1 ＝1A、I 2 ＝1.06A、I 3 0.94A, 3 times the voltage U applied to the LED light source detected by the voltage sensor 1 ＝41V、U 2 ＝41V、U 3 38V, power W required for display backlight 1 The rated power W of the LED light source is 30W, the number of times n of detection of each sensor recorded by the counter is 3, the electro-optical conversion efficiency δ of the LED light source is 0.4, the backlight state index B is 1.324 (three decimal places are taken) calculated by the formula (2), and the calculated back is calculatedWhen the light state index B is 1.324 and does not exceed the preset reference value range (1, plus infinity), the controller does not control the alarm to give out an alarm prompt.
The beneficial effects of the above technical scheme are: the backlight state index calculation method comprises the steps of obtaining a temperature difference value between the LED light source when the LED light source is not electrified and after the LED light source is electrified and stabilized by arranging a temperature sensor, recording the total electrifying time of the LED light source by a timer, calculating the state effect index of the LED light source by a formula (1), detecting the current passing through the LED light source each time by a current sensor, detecting the voltage acting on the LED light source by a voltage sensor, recording the detection times of each sensor by a counter, and calculating the backlight state index according to the calculation result of the formula (1), the current passing through the LED light source detected by the current sensor, the voltage acting on the LED light source detected by the voltage sensor, the detection times of each sensor recorded by the counter and the formula (2), when the backlight state index exceeds the preset reference value range, the controller controls the alarm to give an alarm to inform a user of checking or maintaining so as to ensure that the liquid crystal panel has sufficient backlight, the controller is arranged to control the alarm to give an alarm, related workers are informed of overhauling in time, and the intelligence of the device is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A liquid crystal television with a backlight source and a lens is characterized in that:
the method comprises the following steps: the LED screen display comprises a television shell (5), wherein a liquid crystal panel (3) is arranged in the television shell (5), the liquid crystal panel (3) is connected with a reflecting layer (1), a lens body (2) is arranged between the reflecting layer (1) and the liquid crystal panel (3), and a light source fixing cavity (4) is formed in the lens body (2).
2. A liquid crystal television with a backlight source and lens as claimed in claim 1, wherein:
the lens body (2) is fixed in the center of the reflecting layer (1), the upper end of the lens body (2) is hemispherical, and the cross section of the lower end of the lens body is rectangular.
3. A liquid crystal television with a backlight source and lens as claimed in claim 2, wherein:
the light source fixing cavity (4) is arranged at the central position of the lens body (2), and the light source fixing cavity (4) is in an ellipsoid shape.
4. A liquid crystal television with a backlight source and lens as claimed in claim 3, wherein:
and an LED light source is arranged in the light source fixing cavity (4).
5. A liquid crystal television with a backlight source and lens as claimed in claim 1, wherein:
the reflective layer (1) is hemispherical, and the edge of the reflective layer (1) is tightly attached to the edge of the liquid crystal panel (3).
6. A liquid crystal television with a backlight source and lens as claimed in claim 1, wherein:
and supporting legs (6) are arranged outside the television shell (5), and the supporting legs (6) are detachably connected with the shell (5).
7. A liquid crystal television with a backlight source and lens as claimed in claim 6, wherein:
the supporting legs (6) and the shell (5) are provided with a turning connecting device therebetween, and the supporting legs (6) and the shell (5) are connected through the turning connecting device.
8. The lcd-tv with a backlight source and a lens of claim 7, wherein:
the diversion connecting device comprises:
the device comprises a motor (101), a first threaded rod (102), a moving block (103), a connecting block (104), a moving rod (105), a supporting connecting block (106), a side plate (107), a sliding rail (108), a first rotating shaft (109), a first rotating plate (110), a moving wheel (111), a connecting plate (112), a second threaded rod (113), a second rotating plate (114), a moving plate (115), a connecting claw (116), a limiting plate (117), a second rotating shaft (118), a connecting rod (119), a third rotating shaft (120), a connecting protrusion (121) and an adjusting nut (122);
the motor (101) is fixed on the outer back of the shell (5), the output end of the motor (101) is fixed with one end of the first threaded rod (102), the other end of the first threaded rod (102) is rotatably sleeved on the supporting connecting block (106), and the supporting connecting block (106) is fixed on the outer back of the shell (5);
the first threaded rod (102) is sleeved with the moving block (103), and the moving block (103) is in threaded connection with the first threaded rod (102);
one side of the connecting block (104) is fixed on the moving block (103), and the other side of the connecting block (104) is fixed with one end of the moving rod (105);
the moving rod (105) is bent;
the other end of the moving rod (105) is rotatably connected with one end of the second rotating plate (114) through the first rotating shaft (109), and the other end of the second rotating plate (114) is fixedly connected with the first rotating plate (110);
the first rotating plate (110) is provided with the moving wheel (111);
the side plate (107) is fixed on the back face of the outer shell (5), the side plate (107) is located on one side of the first threaded rod (102), the slide rail (108) is arranged on the side plate (107), the moving wheel (111) is connected to the slide rail (108) in a sliding mode, the slide rail (108) is Z-shaped, and the distance between two parallel sections of the slide rail (108) is the same as the length of the second rotating plate (114);
the connecting plate (112) is fixed on the first rotating plate (110), the connecting plate (112) is fixed with one end of the second threaded rod (113), and the other end of the second threaded rod (113) is fixed on the limiting plate (117);
one end of the connecting plate (112) far away from the first rotating plate (110) is detachably connected with the supporting leg (6);
the moving plate (115) is arranged between the connecting plate (112) and the limiting plate (117), and the moving plate (115) is sleeved on the second threaded rod (113);
the second threaded rod (113) is sleeved with the adjusting nut (122), and the adjusting nut (122) is positioned below the moving plate (115);
moving plate (115) both ends all rotate and are connected with connect claw (116), it is provided with to connect claw (116) middle section position connect protruding (121), connect protruding (121) to pass through third pivot (120) rotate connect in connecting rod (119) one end, connecting rod (119) other end passes through second pivot (118) with limiting plate (117) rotate and are connected.
9. The lcd-tv with a backlight source and a lens of claim 6, wherein:
a protection device is arranged between the liquid crystal panel (3) and the television shell (5), and the protection device is used for protecting the liquid crystal panel (3).
10. A liquid crystal television with a backlight source and lens as claimed in claim 9, wherein:
the guard device includes:
the device comprises a linkage block (201), a first connecting shaft (202), a first pulley (203), a second connecting shaft (204), a second pulley (205), a third connecting shaft (206), a third pulley (207), a connecting rope (208), a rotating shell (209), a first limiting block (210), a fixed shaft (211), a second limiting block (212) and a spring (213);
the four corners of the liquid crystal panel (3) are respectively fixed with the linkage block (201), and the linkage block (201) is connected with the first pulley (203) through the first connecting shaft (202);
the inner wall of the television shell (5) is connected with the second pulley (205) through the second connecting shaft (204), and the inner wall of the television shell (5) is connected with the third pulley (207) through the third connecting shaft (206);
the second connecting shaft (204) is fixed with one end of the connecting rope (208), and the connecting rope (208) sequentially surrounds the first pulley (203), the second pulley (205) and the third pulley (207);
a wire groove is formed in the outer wall of the rotating shell (209), the other end of the connecting rope (208) is fixed in the wire groove formed in the outer wall of the rotating shell (209), and the connecting rope (208) is perpendicular to a connecting line from the position, connected to the wire groove in the outer wall of the rotating shell (209), of the connecting rope (208) to the fixed shaft (211);
the rotating shell (209) is internally provided with the fixed shaft (211), and the fixed shaft (211) is fixed on the inner wall of the television shell (5);
the first limiting block (210) is fixed on the inner wall of the rotating shell (209);
the second limiting block (212) is fixed on the fixed shaft (211), and the second limiting block (212) is positioned in the rotating shell (209);
the first limiting blocks (210) and the second limiting blocks (212) are alternately arranged;
the spring (213) is arranged between the first limiting block (210) and the second limiting block (212), one end of the spring (213) is fixed with the first limiting block (210), and the other end of the spring (213) is fixed with the second limiting block (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001547.8A CN115016169A (en) | 2022-01-04 | 2022-01-04 | Liquid crystal television with backlight source and lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210001547.8A CN115016169A (en) | 2022-01-04 | 2022-01-04 | Liquid crystal television with backlight source and lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115016169A true CN115016169A (en) | 2022-09-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210001547.8A Pending CN115016169A (en) | 2022-01-04 | 2022-01-04 | Liquid crystal television with backlight source and lens |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115440170A (en) * | 2022-09-28 | 2022-12-06 | 深圳市瀚达美电子有限公司 | Multi-connection control system of multi-connection vehicle-mounted backlight |
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