Abstract: The present application relates to a sofa unfolding device capable of avoiding forward overturning, including a seat, a backrest assembly, a linkage assembly, and a leg rest assembly, wherein the linkage assembly is rotatably connected on the seat, the backrest assembly is rotatably connected to a rear end of the seat via the linkage assembly, the leg rest assembly is rotatably connected to a front end of the seat via the linkage assembly, a support mechanism is connected on the front end of the seat and comprises an abutting member and a support member, the abutting member is rotatably connected with the linkage assembly via a first pivot, and the support member is rotatably connected with the abutting assembly via a second pivot and is rotatably connected with the seat via a third pivot.

Abstract: An LED circuit board that includes an insulation board provided with connecting holes and a holding column, and at least two circuit boards; a first circuit board has a through hole, and a second circuit board has connecting columns; the connecting columns are detachably inserted in the connecting holes; the holding column is detachably inserted in the through hole; the insulation board is made of fire-retardant and fire-resistant plastic material.

Abstract: The present disclosure provides an organic light-emitting diode display substrate. The organic light-emitting diode display substrate includes: a light-emitting layer, a light modulation layer, and a color conversion layer, in which the light-emitting layer is configured to emit first color light, the light modulation layer and the color conversion layer are arranged on different light-exiting paths of the light-emitting layer, the color conversion layer is configured to convert first color light into second color light and third color light, and the light modulation layer is configured to modulate an emergent direction of first color light.

Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate and a white OLED display unit on the base substrate, and further includes: an optical adjustment structure on a light emitting side of the white OLED display unit, where the optical adjustment structure is in a peripheral region of each pixel region. The optical adjustment structure is configured to absorb light in a first wavelength range or convert light in a first wavelength range into light in a second wavelength range.

Abstract: The present application relates to an unfolding device of sofa, including a base. A side plate is provided above the base, and a connecting rod assembly is connected between the side plate and the base; the side plate is provided with a mounting assembly for connecting to a sitting portion; a footrest assembly and a backrest connecting member is mounted on and rotatably connected with the side plate; the base is provided with a driving assembly, configured for driving the footrest assembly to rotate and the side plate to move towards a front of the unfolding device.

Abstract: The present application relates to an unfolding device of sofa, including a base. A side plate is provided above the base, and a connecting rod assembly is connected between the side plate and the base; the side plate is provided with a mounting assembly for connecting to a sitting portion; a footrest assembly and a backrest connecting member is mounted on and rotatably connected with the side plate; the base is provided with a driving assembly, configured for driving the footrest assembly to rotate and the side plate to move towards a front of the unfolding device.

Abstract: The present invention provides a patch LED light bulb comprising a lampshade and a base. It further comprises a light source baseboard and a power supply board which are disposed inside the lampshade and electrically connected to each other. The light source baseboard is pasted or soldered with more than one LED chip. The lampshade comprises a cover body and an assembly portion integrally connected to the cover body. The assembly portion is inserted into the base. A limiting slot is provided on the assembly portion. A positioning slot is provided on the light source baseboard. The power supply board abuts against the light source baseboard and is perpendicular to the light source baseboard. The power supply board is integrally connected with a limiting protrusion for inserting to the limiting slot and a positioning protrusion for inserting the positioning slot.

Abstract: The present invention provides an LED light bulb comprising a transparent lampshade, a base, a transparent stem, a transparent seat, a power supply board fixedly mounted on the transparent seat, a first rigid conductive wire passing through the transparent stem, second rigid conductive wires passing through the transparent stem and connecting to the power supply board, and LED filaments fixedly connected to the first rigid conductive wire and the second rigid conductive wires. The second rigid conductive wires are two in number. The LED filaments are two or more in number. Each of the LED filaments are evenly distributed around the transparent stem, and each of the second rigid conductive wires is connected to at least one of the LED filaments.

Abstract: The present invention provides a retro LED light bulb comprising a transparent lampshade and a base fixedly connected with the transparent lampshade. It further comprises a transparent stem inside the transparent lampshade, a power supply board fixedly mounted on the transparent stem, rigid conductive wires passing through the transparent stem and connecting to the power supply board, and an LED filament fixedly connected to the rigid conductive wires; the rigid conductive wires are two in number; the LED filament is in U-shape; two ends of the LED filament are respectively connected to the rigid conductive wires as one-to-one connection. Since the LED filament is supported by the rigid conductive wires, and the LED filament is bent into a U-shape, the light emitted by the LED filament will not be blocked by the stem easily, resulting in more uniform light and better illumination effect.

Abstract: The present invention discloses a quick mounting holder structure for sinking mechanical extension device of functional sofa, which includes a mounting support, a stretchable component, a backrest component, and a main body. The mounting support, the stretchable component, the backrest component are rotatably installed in the main body. The mounting support includes a crossbeam and at least one mounting piece. The crossbeam includes a side panel. At least one mounting piece is fixed on the side panel and is perpendicular to the side panel. The mounting support and wooden frame are fixed by an electric drill using a screw through the mounting hole. The operation is simple and quick. Further, at least one mounting piece is fixed on the side panel, lowering the mounting height, so that the height of the whole sofa and rocking chair is lowered. Thus, the comfortableness of the user is improved.

Abstract: An electrical mechanical stretching device of a movable sofa includes a mechanical stretching device and an electrical device, wherein the mechanical stretching device includes a third leg rod and a third connecting rod. The electrical device consists of a motor sliding block connecting pipe, a motor, a motor leg fixing pipe, a motor guide rail and a motor sliding block. The motor is provided with the motor guide rail. The motor sliding block is mounted on the motor guide rail. A motor end is rotatably connected via a second rotating shaft to the motor leg fixing pipe which is fixed on the third leg rod. The motor sliding block is rotatably connected via a first rotating shaft to the motor sliding block connecting pipe which is fixed on the third connecting rod. A base of the mechanical stretching device is connected by two bottom connecting pipes.

Abstract: The present invention discloses a quick mounting holder structure for sinking mechanical extension device of functional sofa, which includes a mounting support, a stretchable component, a backrest component, and a main body. The mounting support, the stretchable component, the backrest component are rotatably installed in the main body. The mounting support includes a crossbeam and at least one mounting piece. The crossbeam includes a side panel. At least one mounting piece is fixed on the side panel and is perpendicular to the side panel. The mounting support and wooden frame are fixed by an electric drill using a screw through the mounting hole. The operation is simple and quick. Further, at least one mounting piece is fixed on the side panel, lowering the mounting height, so that the height of the whole sofa and rocking chair is lowered. Thus, the comfortableness of the user is improved.

Abstract: A sofa waist propping device includes a frame and a waist adjusting mechanism, the frame being fixed on a sofa or a seat, the waist adjusting mechanism comprising a backrest and a first driving member rotatably connected to the frame respectively, the first driving member being rotatably connected to the backrest and driving the backrest to rotate around the frame. Since the first driving member is rotatably connected to the backrest and drives the backrest to rotate around a fixing member, the position of the backrest is adjusted, with a structure simple and stable and comfortableness increased.

Abstract: The present invention discloses a sofa pillow driving device, which comprises a side plate mounting member, a headrest mounting member, and a driving device, the sofa pillow driving device further comprises a rotation limit member and an elastic member, the rotation limit member being rotatably connected to the side plate mounting member, the headrest mounting member being rotatably connected to the rotation limit member, one end of the elastic member being connected to the headrest mounting member and the other end being connected to the rotation limit member, one end of the driving device being rotatably connected to the rotation limit member and the other end being rotatably connected to a backrest wood frame, the driving device drives the headrest mounting member to rotate by the rotation limit member.

Abstract: The present invention discloses a sofa pillow driving device, which comprises a side plate mounting member, a headrest mounting member, and a driving device, the sofa pillow driving device further comprises a rotation limit member and an elastic member, the rotation limit member being rotatably connected to the side plate mounting member, the headrest mounting member being rotatably connected to the rotation limit member, one end of the elastic member being connected to the headrest mounting member and the other end being connected to the rotation limit member, one end of the driving device being rotatably connected to the rotation limit member and the other end being rotatably connected to a backrest wood frame, the driving device drives the headrest mounting member to rotate by the rotation limit member.

Abstract: The present invention discloses a sofa waist proping device comprising a frame and a waist adjusting mechanism, the frame being fixed on a sofa or a seat, the waist adjusting mechanism comprising a backrest and a first driving member rotatably connected to the frame respectively, the first driving member being rotatably connected to the backrest and driving the backrest to rotate around the frame oppositely. Since the first driving member is rotatably connected to the backrest and drives the backrest to rotate around a fixing member, the position of the backrest is adjusted, with a structure simple and stable and comfortableness increased.

Abstract: Disclosed is an electrical mechanical stretching device of a movable sofa, comprising a mechanical stretching device and an electrical device, wherein the mechanical stretching device comprises a third leg rod and a third connecting rod. The electrical device consists of a motor sliding block connecting pipe, a motor, a motor leg fixing pipe, a motor guide rail and a motor sliding block. The motor is provided with the motor guide rail. The motor sliding block is mounted on the motor guide rail. A motor head is rotatably connected via a second rotating shaft to the motor leg fixing pipe which is fixed on the third leg rod. The motor sliding block is rotatably connected via a first rotating shaft to the motor sliding block connecting pipe which is fixed on the third connecting rod. A base of the mechanical stretching device is connected by two bottom connecting pipes.

Abstract: A novel Christmas light comprises a head and a shade. A lighting device is mounted inside the shade. The lighting device comprises an LED light, a printed circuit board and a power supply module. The LED light is a patch type LED light. The printed circuit board comprises a first printed circuit board and a second printed circuit board. The first printed circuit board is positioned upright. The second printed circuit board is placed flat below the first printed circuit board. The first printed circuit board and the second printed circuit board are perpendicular to each other and fixedly connected with each other. The patch type LED light is welded to a lower bottom surface of the second printed circuit board. The power supply module is mounted on the first printed circuit board. The first printed circuit board and the head are fixedly connected with each other.