52results about How to "Does not affect settings" patented technology

The invention relates to a scissor-type deformation amplifying device for amplifying the energy consumption effect of a damper. The device is arranged in a framework composed of a left structural column, a right structural column, an upper beam and a lower beam; the device comprises a damper, a first support, a second support, a third support, a fourth support, a cover plate and an instability prevention plate, wherein the upper end of the cover plate is welded below the first support and the second support, the middle part of the cover plate is hinged with two ends of the damper through movable shafts, the lower end of the cover plate is welded together with the upper end of the instability prevention plate, and the lower end of the instability prevention plate is welded together with the third support and the fourth support. Compared with the prior art, the scissor-type deformation amplifying device has the advantages that the displacement of the damper can be amplified to more than 2 times of the inter-story displacement, the energy consumption of the damper can be increased, and the additional damping ratio of the structure under the actions of wind load and earthquake can be increased; in addition, the out-of-plane stability of the device, caused under the action of rare occurrence earthquake, is avoided by using a construction measure, and the safety of the structure under the action of the rare occurrence earthquake is ensured.

The invention provides a solid hydrogen storage device. A cylinder is internally connected with a heat conductive sheet; a hydrogen inlet valve and a hydrogen outlet valve are respectively connected with the exteriors of the two ends of the cylinder; a filter passes through the central hole of the heat conductive sheet; two ends of the filter are respectively connected with the hydrogen inlet valve and the hydrogen outlet valve; the cylinder is internally provided with a snake-shaped water circulation pipe which is arranged longitudinally along the cylinder and is connected with the heat conductive sheet; the heat conductive sheet is connected with a sheet-shaped crossing. Large holes are uniformly distributed along 2 / 3 of the radius of the heat conductive sheet; small holes are uniformly distributed along 1 / 3 of the radius of the heat conductive sheet; the sheet-shaped crossing is horizontally arranged between the large holes and the small holes of the heat conductive sheet; the snake-shaped water circulation pipeline passes through the heat conductive sheet and deviously passes through the large holes in 120 DEG on the heat conductive sheet with an arc ranging from 30-90 DEG; the water outlet and the water inlet of the snake-shaped water circulation pipe are respectively arranged at the end plates of the two ends of the cylinder.

The invention discloses a prefabricated shear wall horizontal abutted seam buckle welding built-up connection device. An upper anchor plate clings to the bottom surface of an upper prefabricated shear wall, and the top of the upper anchor plate is provided with upper horizontal reinforced bars and connected with bottom ends of upper connecting reinforced bars; the upper connecting reinforced bars are arranged in the upper prefabricated shear wall; the upper portion of a vertical connecting plug pin is located in the upper prefabricated shear wall and connected with the upper connecting reinforced bars, the lower portion of the vertical connecting plug pin protrudes out of the bottom surface of the upper prefabricated shear wall, and the bottom end of the same is an expanded head; a lower anchor plate clings to the top face of a lower prefabricated shear wall and connected with the top ends of lower connecting reinforced bars; connecting blocks are arranged inside a connecting groove box in pairs, opposite protruding snag teeth are arranged at the top ends of the connecting blocks, and the bottom ends of the connecting blocks are connected with the bottom of the connecting groove box through hinges; pressure springs are arranged between the connecting blocks and the inner wall of the connecting groove box. The connecting device can bear shear force, bending moment and tension and pressure, the prefabricated shear wall assembly process is simplified, construction period is shortened, labor cost is reduced, and on-site pollution and material waste are reduced.

The invention provides a backlight module and a display device, and relates to the technical field of display. The backlight module comprises a back plate and a light source; the back plate comprises a back plate body and a first bending structure perpendicular to the back plate body; on one side of the light source, the back plate further comprises a second bending structure which is connected with the first bending structure and extends in the same direction as the back plate body; the second bending structure comprises a plurality of protrusions arranged at intervals, and concave portions between the adjacent protrusions are used for containing light-emitting parts of the light source. A rubber frame does not need to be arranged, the width of the frame can be reduced, and the flatness of the back plate can be improved.

The invention relates to a power line broadband carrier communication module networking test system. The system comprises a three phase power supply, an A phase networking unit connected with the A phase of the three phase power supply, a B phase networking unit connected with the B phase of the three phase power supply, a C phase networking unit connected with the C phase of the three phase power supply, a concentrator connected with the three phase power supply by three lines, and a processing unit connected with the concentrator, wherein the networking units on each phase are mutually connected through shielded cables. The networking units are provided with a plurality of carrier modules, and one carrier module is connected with a single-chip microcomputer, so that the carrier modules are convenient to replace, and replacement of any carrier module does not affect system setting; and client programs about control of electric meters and street lamps or smart home can be written in the single-chip microcomputer, so that the networking test system can be used for networking tests of multiple applications.

The invention discloses an electrical connector. The electrical connector is electrically connected with a chip module, and comprises a body, a plurality of insulating parts and a plurality of terminals, wherein the body is provided with a plurality of accommodating holes passing through the body from top to bottom; inner side faces of the accommodating holes and an upper surface of the body are conductive; the plurality of insulating parts are molded separately from the body, and correspondingly fixed in the accommodating holes respectively; the insulating parts are provided with supporting parts which extend upwards out of the accommodating holes, are higher than the upper surface of the body, and are used for supporting the chip module; the plurality of terminals are correspondingly fixed on the insulating parts respectively; and the terminals are provided with contact parts which are pressed against the chip module. The supporting parts are higher than the upper surface of the body, so that short circuit caused by contact of the chip module with the upper surface of the body can be avoided. The supporting parts extend out of the accommodating holes, so that the arrangement space of the supporting parts can be increased; the strength of the supporting parts is enhanced; the supporting effect for the chip module is improved; the chip module is prevented from being damaged under pressure; and the terminals are prevented from being deformed excessively under pressure.

The invention discloses an assembly type prefabricated shear wall horizontal abutted seam steel channel welding and connecting device and a connecting method. An upper steel channel of the device is composed of a flange and a web, and a lower steel channel of the device is composed of a flange and a web. The web of the upper steel channel is arranged in the mode of being closely attached to the bottom face of an upper prefabricated shear wall. The flange of the upper steel channel is upward and is welded to upper connecting reinforcement. The web of the lower steel channel is arranged in the mode of being closely attached to the top face of a lower prefabricated shear wall. The flange of the lower steel channel is downward and is welded to lower connecting reinforcement. The upper steel channel of the upper prefabricated shear wall and the lower steel channel of the lower prefabricated shear wall are connected through steel channel edge weld seams. The upper connecting reinforcement and the lower connecting reinforcement are connected in an aligned mode. When the upper prefabricated shear wall and the lower prefabricated shear wall are spliced, by connecting a temporary fixing rod with an upper raise ear and a lower raise ear, the upper prefabricated shear wall and the lower prefabricated shear wall are fixed temporarily, and then welding is carried out on side edges of the steel channels to connect the upper steel channel and the lower steel channel. According to the device, the assembly process of the prefabricated shear walls can be simplified, the construction period can be shortened, labor consumption is reduced, and site pollution and material waste are reduced.

The invention discloses a fluorescence conversion system comprising a laser excitation light source, a fluorescent wheel, a first lens assembly and a second lens assembly. The first lens assembly and the second lens assembly are arranged at the front side and the back side of the fluorescent wheel. The laser excitation light source enters the fluorescent wheel by the first lens assembly to excite the fluorescent wheel to emit fluorescent light; the fluorescent light is reflected by the fluorescence wheel and then is emitted by the first lens assembly; and the laser excitation light source passes through the fluorescent wheel and is emitted by the second lens assembly. A distance between the second lens assembly and the first lens assembly is larger than an equivalent focal length of the first lens assembly, thereby reducing light attenuation caused by passing through the second lens assembly by the laser excitation light source.

The invention relates to a broadband power line carrier communication module seven-stage relay communication testing system, which comprises an alternating current filter, a power supply module, a broadband power carrier centralized controller, a coupler, seven fixed attenuators, seven base table units and a seven-stage shield box, wherein the seven-stage shield box is provided with fourteen cells, the power supply module is arranged inside the first cell of the seven-stage shield box, the fixed attenuator and the base table unit are arranged inside the second cell, the base table units are respectively arranged in the fourth cell, the sixth cell, the eighth cell, the tenth cell, the twelfth cell and the fourteen cell, the fixed attenuators re respectively arranged in the third cell, the fifth cell, the seventh cell, the ninth cell, the eleventh cell and the thirteenth cell, each base table unit is respectively connected with the same stage fixed attenuator and the next stage fixed attenuator, the power supply module and each base table unit are sequentially connected through power supply lines, and the broadband power carrier centralized controller is connected with one of the fixed attenuators through the coupler. With the broadband power line carrier communication module seven-stage relay communication testing system of the present invention, the broadband power line carrier communication module seven-stage relay communication test can be achieved, the integrity is high, the wiring is convenient, and the operation is flexible and simple.

The invention discloses an assembly type prefabricated shear wall horizontal abutted seam type steel welding connecting device. The upper portion of a middle upper connecting steel bar extends into an upper prefabricated shear wall. The lower portion of a middle lower connecting steel bar extends into a lower prefabricated shear wall. The lower portion of the middle upper connecting steel bar is connected with the upper portion of the middle lower connecting steel bar in a bound or lap joint mode. Upper profile steel and lower profile steel are arranged at the ends of the shear walls in the length direction of a horizontal abutted seam of the prefabricated shear walls. The upper portion of the upper profile steel extends into the upper prefabricated shear wall and is welded to the upper connecting steel bar. The bottom surface of the upper profile steel is connected with an upper connecting steel plate in a welded mode. The lower portion of the lower profile steel extends into the lower prefabricated shear wall and is welded to the lower connecting steel bar. The top surface of the lower profile steel is connected with a lower connecting steel plate in a welded mode. The upper connecting steel plate and the lower connecting steel plate are connected in a welded mode. The assembly type prefabricated shear wall horizontal abutted seam type steel welding connecting device can simplify the assembly process of the prefabricated shear walls, shorten the construction period and reduce manual consumption, site pollution and material wasting.

This invention discloses an apparatus which comprises a light-accepting part with a mark zone, and an irradiation part ejecting light to the acceptor; wherein, the said irradiation direction can be changed, and the irradiation part primarily transforms the entity arrow into the fictitious one and casts light to the mark zone to provide distinguish effect. The arrow is un-visible and virtual between the light-accepting part and the irradiation part without any influence on distinguished zone to set liquid crystal display screen (LCD).

The invention relates to a water-saving rice washing barrel. In the barrel, the upper end of the barrel body is open, and an overflow port is formed on the outer edge of the barrel, a rice outlet is formed on the lower end of the barrel body; the rice outlet is communicated with a rice outlet pipeline; a rice outlet control valve is arranged on the rice outlet pipeline; a water outlet is formed at the lower part of the barrel close to the rice outlet; a screen for blocking rice is arranged at the water outlet; a water outlet pipe which is communicated with the water outlet and provided with a water outlet control valve is arranged outside the barrel body; the screen is positioned on the inner wall of the barrel body; a protective cover which covers the water outlet is arranged on the outer wall of the barrel body corresponding to the water outlet; and the water outlet is communicated with the water outlet pipe through the protective cover. The rice is washed by an immersing mode in the rice washing barrel, and generally, the rice can be cleaned by immersing 3 to 4 times. The rice washing barrel has the advantages that rice washing water is injected and flows out intermittently, and less water is used; and compared with the prior art, mass water resources are saved, so the rice washing barrel has great significance at present in water shortage.

The invention discloses a device for connecting a shear wall and a concrete floor in a building structure and a setting method of the device. The device comprises a plurality of anchor steel bars, a vertical anchor board and a U-shaped toothed part, wherein one end of each anchor steel bar is fixed on the inner surface of the vertical anchor board, and the other end of each anchor steel bar extends into the shear wall; one end of the U-shaped toothed part is fixed on the outer surface of the vertical anchor board; the U-shaped toothed part is located at the thickness center of the concrete floor; the lower portion of the U-shaped toothed part is a horizontal plate, vertical plates with rectangular teeth are arranged on two sides of the U-shaped toothed part, and the product of the total cross section area of the anchor steel bars and the material strength of the anchor steel bars is not smaller than the product of reinforcing steel bars, pointing to the shear wall, in the concrete floor and the material strength of the reinforcing steel bars in the concrete floor. The device has the advantages that the device replaces connecting reinforcing steel bars arranged in the shear wall and connected with the concrete floor in the prior art, the reinforcing steel bar arrangement work during the shear wall and concrete floor construction is simplified, destroying of the shear wall in the prior art is avoided, and the construction period is shortened.

The invention discloses a device for connecting a shear wall and a concrete floor in a construction structure and an arranging method thereof. The device is composed of multiple anchor bars, a vertical anchor plate and a U-shaped toothed part, wherein one end of each anchor bar is fixed to the inner surface of the vertical anchor plate, the other end of each anchor bar stretches into the shear wall, one end of the U-shaped toothed part is fixed to the outer surface of the vertical anchor plate, the highest position of the U-shaped toothed part is located in the middle of the concrete floor in the thickness direction, a horizontal plate is arranged below the U-shaped toothed part, vertical plates provided with rectangular teeth are arranged on the two sides of the U-shaped toothed part, and the product of the total cross section of the anchor bars and the material strength of the anchor bars is not smaller than the product of the total cross section of intra-plate bars, facing the shear wall, in the concrete floor and the material strength of the intra-plate bars. According to the device and method, connecting bars arranged in the shear wall and connected with the concrete floor in the prior art are replaced, reinforcing bar arrangement work during shear wall and concrete floor construction is simplified, damage to the shear wall according to the current construction technology is avoided, and construction period can be shortened.

The invention discloses a shell for band tape, which comprises: an upper cover (1) with a frame-shape plastic substrate (11) joint with a lower cover (2) both embedded metal core cover (12) into a plastic substrate by integrated injection molding, and a rubber layer (3) on outside of (1) and (2). Wherein, arranging a bulge (11a) on top of (11) and a small hole (12a) on (12) both matched to block (12) on the plastic substrate (11). Compared with prior art, this invention enhances fastness of whole shell with little effect to rubber layer and band tape appearance.

The invention discloses a sleeve type metal radiation heat exchanger which comprises a metal barrel, wherein the upper part of the exterior of the metal barrel is connected with a hot air box, the lower part of the exterior of the metal barrel is connected with a cold air box, a hanging install device is arranged on the upper part of exterior of the metal barrel, a smoke seal device is arranged on the bottom of the cold air box. The upper part of the metal barrel is provided with the hanging install device, so that the heat exchanger is vertically and fixedly arranged in a mode that the upperpart of the heat exchanger is suspended, the lower part of the heat exchanger is free end, when the metal barrel is subjected to thermal expansion and deformation, the metal barrel can extend toward to the lower end, thus the arrangement of the connecting line of the upper part of the metal barrel is not influenced, therefore, even if the height of the metal barrel is higher(such as more than 10m), the problems in structure and installation caused by thermal expansion do not exist.

The invention discloses a fabricated steel structural self-restoring energy consuming supporting device and belongs to the technical field of structural engineering. The fabricated steel structural self-restoring energy consuming supporting device includes an energy consuming system, a self-restoring system and a base. One side of the width of a stand column in the energy consuming system is full-length, and a hole is formed in the bottom of the stand column in order to make a cable pass through conveniently. A yellow brass plate is installed between two steel plates of the energy consuming system. The two steel plates are connected with each other through a bolt. The combination is used as the energy consuming system of the fabricated steel structural self-restoring energy consuming supporting device. A steel rope passes through the energy consuming system transversely through two end plates and the combination is used as the self-restoring system of the fabricated steel structural self-restoring energy consuming supporting device. The energy consuming system is connected with side bolts into one through a middle pin shaft and a lever mechanism is formed with respect to the pin shaft. In this way, lateral displacement on the bottom of the stand column is magnified on the top of the stand column. Meanwhile, deformation of the steel rope is low and increase of rope force is low.In addition, through the fixing effect of a pre-tightening piece, adjustment to the rigidity of the fabricated steel structural self-restoring energy consuming supporting device can be achieved so that when a building structure is used normally and in a ultimate state, requirements of resistant-lateral rigidity and energy consuming can be met.

An executing system of a finite-state machine comprises an engine unit, a storage unit and an executing unit. The engine unit is used for receiving input events. The storage unit is used for storing the current state of the finite-state machine and a state transfer table. The executing unit is used for obtaining the current state of the finite-state machine from the storage unit and obtaining a next-state machine which needs to be transferred by a current-state machine and using the obtained next-state machine for updating the current state of the finite-state machine according to the input events provided by the engine unit and the state transfer state stored in the storage unit. The state transfer table comprises N layers of state machines, upper-layer state machines comprise a plurality of repellent lower-layer state machines, the lower-layer state machines are obtained through inheritance of the upper-layer state machines and the lower-layer state machines are provided with interface modules for entering the upper-layer state machines inherited by the lower-layer state machines. Each state machine in the N layers of state machines only has one living example and only processes the input event which is directly related to the living example. The invention further provides an executing method of the finite-state machine.

The invention discloses a call forwarding configuration method and device, computer equipment and a computer storage medium. The call forwarding configuration method comprises the following steps: after a first subscriber identity module card establishes a call, configuring a call forwarding supplementary service for a second subscriber identity module card, and forwarding the call to the first subscriber identity module card; and after the call of the first subscriber identity module card is finished, configuring a call forwarding supplementary service for the second subscriber identity module card, and forwarding the incoming call to a preset number. According to the embodiment of the invention, the method comprises the following steps: obtaining data;, configuring supplementary serviceof the second subscriber identity module card when the first subscriber identity module card is in communication, According to the invention, the first subscriber identity module is used for transferring the call to the first subscriber identity module, so that the call omission of the second subscriber identity module is avoided, the call is recovered to the preset number after the call is finished, the preset call transfer service is not influenced, the trouble of manually setting the call transfer and possible setting errors of the user are avoided, and the call experience of the one-way mobile phone is improved.

The invention discloses a fabricated steel structure H-shaped steel self-reset energy-dissipation supporting device, and belongs to the technical field of structural engineering. The fabricated steelstructure H-shaped steel self-reset energy-dissipation supporting device comprises an energy dissipation system, a self-reset system and a base. A stand column in the energy dissipation system is full-length, and a bottom flange is provided with holes to facilitate passing of a cable. A brass sheet is arranged between two steel plates of the energy dissipation system. The steel plates are connected through bolts. The steel cable penetrates through the energy dissipation system transversely through two end plates to serve as the self-reset system of support. The energy dissipation system and the bolts on the side surface are connected into a whole through a middle pin shaft, and a lever mechanism is formed with the pin shaft as a center, so that transverse displacement of the bottom of thestand column is amplified at the top of the column, meanwhile, deformation of the steel cable is small, and increasing of cable force is not large. In addition, through the fixing function of a preloaded piece, adjusting of the device rigidity can be achieved to meet requirements for resist lateral rigidity and energy dissipation when a building structure is used normally and in a limit state; andusing of H-shaped steel can reduce consumables, and energy is saved.

The invention discloses an ultralow temperature CPP aluminum plated film, which comprises a basic film layer, an aluminum plated layer, which is arranged on the upper surface of the basic film layer,and a polyethylene film layer, which is arranged on the lower surface of the basic film layer. The basic film layer is prepared by mixing and extruding basic film master batch and PET together; and the basic film layer comprises 50 to 60 parts by weight of basic film master batch and 30 to 60 parts by weight of PET. The aluminum plated layer and the polyethylene film layer are arranged on two sides of the basic film layer, the polyethylene film layer is taken as the inner layer and contains few additives, thus the CPP aluminum plated film is suitable for being used in the food industry, at thesame time, and due to the multilayer structure, the whole CPP aluminum plated film is more stable and has better stretch resistant and freeze resistant performances.

The invention discloses an overcurrent protection device and method for a frequency converter, and the frequency converter. The device comprises: a sampling unit which is configured to sample the current parameter of the frequency converter, and based on the bias voltage provided by the bias voltage chip, processing the current parameter to obtain a current sampling parameter used for determining whether the frequency converter is over-current, a protection unit configured to set a protection parameter range for performing overcurrent protection on the frequency converter according to the current parameter of the frequency converter; and a control unit configured to determine whether the current sampling parameter exceeds the protection parameter range or not by judging the level of the current sampling parameter, and if the current sampling parameter exceeds the protection parameter range, start a preset overcurrent protection mechanism. According to the scheme, the reliability of overcurrent protection of the frequency converter can be improved by improving the current sampling precision of the frequency converter.

The invention provides an intelligent device that comprises an annular and closed metal frame and an antenna module. The antenna module is arranged in the metal frame. The antenna module comprises a PCB, a functional coil, a resonance coil and capacitors arranged at two ends of the resonance coil. The PCB is provided with a functional chip, and the functional coil comprises two feeding points which are electrically connected with the functional chip. The resonance coil is arranged between the functional coil and the metal frame and used for resonance induction with the functional coil. The resonance coil in the intelligent device can effectively weaken or counteract a magnetic field caused by reverse current of the metal frame so as to ensure normal work of the antenna module. In addition,the antenna module does not use the metal frame as a radiator, the arrangement of the antenna module is simplified, and the arrangement of other antennas is not influenced.

The invention provides a ball cage and an angular contact ball bearing. The ball cage comprises a plurality of frame bodies, the end faces of the two sides of each frame body are provided with ball pockets, the surface of each ball pocket is used for contacting with bearing balls, a straight-line distance between any two points on any cross section of one frame body is smaller than the diameter ofthe bearing balls, one frame body is arranged between two adjacent bearing balls, so that the lives of the bearing balls are prolonged, the weight of bearings and the starting torque of the bearingsis reduced; and the angular contact ball bearing comprises bearing inner rings, bearing balls, bearing outer rings and the above-mentioned ball cage, ball sliding ways are arranged between the bearinginner rings and the bearing outer rings, the ball cage is used for separating the bearing balls and prevent the bearing balls from falling off, the number of the bearing balls is multiple, the numberof bearing balls is the same as that of the frame bodied, each bearing ball can slide in the ball sliding ways, and the ball cage does not affect the arranging of the bearing inner rings and the bearing outer rings, so that the contact angle of the bearings is increased.

The invention provides a removable long-span thin car frame which is provided with removable car bodies (20) at both sides and a large span-height ratio external prestress steel girder structure, wherein the large span-height ratio external prestress steel girder structure is arranged between the car bodies at both sides; the steel girder structure (21) is arranged between a pair of car bodies (20) and comprises a plurality of main girders (1) arranged in parallel; one end of each main girder is fixedly connected with one of the car bodies, and the other end of each main girder is connected with the other car body in a floating way; and the position at the lower part of each main girder (1) is provided with a prestress stretching cable (17). When the main girders generate larger deformation by a heavy load, the car frame allows the main girders to generate proper horizontal displacement relative to the car bodies, thereby releasing great horizontal tensile force, greatly reducing wheel pressure and eliminating a horizontal additional load of the main girders on the car bodies at both sides of the car frame with the heavy load and large deflection.

The invention relates to an outdoor three-position switch operating mechanism. The outdoor three-position switch operating mechanism comprises a substrate, a switch sliding plate is assembled on the substrate in a guiding mode, and a driving pin is arranged on the switch sliding plate. A forward overhanging mechanism output shaft is further rotationally assembled on the base plate, a driving connecting lever is fixed to the mechanism output shaft, and a driving guide groove extending in the radial direction of the mechanism output shaft is formed in the driving connecting lever; the driving pin penetrates into the driving guide groove so as to convert the guiding movement of the switch sliding plate into the swinging of the driving crank arm and the mechanism output shaft; the driving connecting lever is provided with a thickened part, and the thickness of the thickened part is larger than that of the part, connected with the mechanism output shaft, of the driving connecting lever. The outdoor three-position switch operation mechanism further comprises three microswitches which are fixedly arranged relative to the substrate, and contacts of the microswitches are used for corresponding to the thickened parts of the driving connecting lever and are respectively used for being triggered by the thickened parts when the mechanism output shaft is in a grounding position, a middle position and an isolation position.

The invention relates to a method and system for constructing non-progressive screen dots, belonging to the field of printing and publishing. Multiple layers of annularly embedded non-progressive screen dots are generated through a defined function cluster F, a direct network-hanging method or screen dot optimizing method by using collimation errors that deep color is easy to invade light color on the vision of the human body on the basis of network hanging of the non-progressive screen dots. By adopting the method and the system disclosed by the invention, the printing effect is bright, the progressive effect is smooth and thin, and the new screen dot greatly reduces the continuous area of ink, therefore, the ink consumption is greatly lowered, the printing cost is saved and the environment is protected.

This invention discloses an apparatus which comprises a light-accepting part with a mark zone, and an irradiation part ejecting light to the acceptor; wherein, the said irradiation direction can be changed, and the irradiation part primarily transforms the entity arrow into the fictitious one and casts light to the mark zone to provide distinguish effect. The arrow is un-visible and virtual between the light-accepting part and the irradiation part without any influence on distinguished zone to set liquid crystal display screen (LCD).