40results about How to "Increase the mixing distance" patented technology

The invention discloses a backlight module and a display device. Light-emitting surfaces of lateral emitting type backlight sources are changed to deviate from a backlight display region from an existing manner of facing the backlight display region, and a light guide part is arranged at an edge of a non-display region of a light guide plate; light which is transmitted in the light guide part andis emitted by the lateral emitting type backlight sources is reflected to the light guide plate through a reflecting part which is arranged on a first surface, opposite to a light emitting surface, ofthe light guide part, so that a light guide function of the backlight module is realized. Compared with an existing backlight module structure, on the basis of taking a distance between a side face facing the backlight display region of the existing lateral emitting type backlight sources and a boundary, close to the lateral emitting type backlight sources, of the backlight display region as a light mixing distance under the condition of ensuring a narrow edge frame structure design, the following light mixing distances are increased: a maximum distance between the light emitting surfaces ofthe two lateral emitting type backlight sources and the first surface, and the length of the lateral emitting type backlight sources in the direction vertical to the light emitting surfaces; the glowworm effect is easily improved under a narrow edge frame.

A display device includes a display panel having an active display area, an optical film set, a light source module, and a frame. The light source module includes a light guide plate (LGP) and a light source adjacent to a side surface of the LGP. The optical film set is located between the display panel and the LGP. The frame disposed between the LGP and the optical film set extends to the LGP and covers a portion of the LGP. The frame has a first surface carrying the optical film set, a second surface facing to the light emitting surface, and a chamfered inclined surface. The chamfered inclined surface is within the active display area and connects the first and second surfaces. An extending distance of the first surface in the active display area is smaller than an extending distance of the second surface in the active display area.

The invention relates to a LCD and the backlight module thereof. And the LCD comprises a backlight module and a LCD panel, the backlight module comprises a first light source, a first lighting cavity, at least a first optical fiber and a first light guide plate; the first lighting cavity has a first orifice, the first light source is held in the first lighting cavity; one end of the first optical fiber is connected with the first orifice; the first light guide plate is arranged at the other end of the optical fiber; and the LCD panel is adjacent to one side of the first light guide plate.

The invention provides a backlight module, a display and a manufacturing method of a reflecting cover of the backlight module. The backlight module comprises a light guide plate, a reflecting cover and a plurality of point light sources. The light guide plate is provided with a light incident surface, and the reflecting cover is arranged on the light incident surface. The reflecting cover comprises a reflecting part. The point light sources are used for respectively providing light rays for the reflecting part, and the reflecting part is used for reflecting the light rays to the light incident surface. Because the light rays can enter the light guide plate only by being reflected by the reflecting cover, the uniformity degree of an area light source provided by the backlight module can be improved.

The invention provides a direct type backlight module which comprises a backplane, a plurality of backlight sources arranged in the backplane and a diffusion plate arranged above the backplane. The backplane comprises a baseplate, a side plate connected on the side edge of the baseplate and a plurality of installation units arranged on the baseplate, wherein each of the installation units is provided with a first inclined plane and a second inclined plane which is in the opposite inclined direction to the first inclined plane; the backlight sources are arranged on the first inclined plane and the second inclined plane respectively, so that the backlight sources are in inclined arrangement relative to the diffusion plate. According to the direct type backlight module, the installation unit provided with the first inclined plane and the second inclined plane is arranged on the baseplate of the backplane, and the backlight sources are arranged on the first inclined plane and the second inclined plane of the installation unit, so that the backlight sources are arranged in an inclined way relative to the diffusion plate so as to increase the mixed light distance and improve the illumination intensity and uniformity, and meanwhile, the number of LED (light-emitting diode) lights in use is reduced, the production cost is lowered; and moreover, the the backlight module can be thinned easily.

The present invention is a backlight module including a housing, a reflective sheet, and a light source module. The housing has an inner side surface, an outer side surface, and a plurality of first openings. The reflective sheet is disposed on the inner side surface and has a plurality of second openings corresponding to the first openings. The light source module has a plurality of light sources, wherein the light source module is disposed on the outer side surface, and each of the light sources may penetrate each of the first openings and the second openings. When the light sources are dimmed or have other problems, the light source module can be taken apart from the housing to repair them easily.

The invention relates to the field of liquid crystal display technologies. The backlight module provided by the invention sequentially comprises a printed circuit board, a first reflection plate, LED light sources, light guide plates, a diffusion plate and an optical diaphragm from the bottom up. Each light guide plate is of a rectangular structure with thin periphery and thick center, and is buckled on the corresponding LED light source via a groove at the center, and bumps are arranged on a first light reflection plane and a second light reflection plane of the light guide plate, so that mixing distance of light rays entering the light guide plate is increased, and thus the light rays are more uniformly distributed, generation of a dark space is avoided, and thin design of the liquid crystal display is facilitated; the LED light source and the light guide plate are on one-to-one correspondence, regional dimming is facilitated, and becomes more accurate during rectangular light emitting surfaces formed by the light guide plates; meanwhile, a use ratio of the light sources is further improved due to the arrangement of a third reflection plate. According to the liquid crystal display including the backlight module provided by the invention, regional dimming can be accurately achieved, and the thin design is also achieved.

The invention discloses a direct type backlight module. The direct type backlight module comprises a backboard, a backlight source, a diffuser plate and an optical film layer. The backboard comprises a bottom board and side boards connected to the bottom board, and a backlight cavity is formed by the side boards and the bottom board. The diffuser plate is arranged on the side boards, and the optical film layer is arranged on the diffuser plate. The backlight source is arranged on the bottom board of the backboard and contained in the backlight cavity. The bottom board of the backboard is a free curved face, and the radian of the free curved face of the bottom board is adjusted according to the light mixing distance of the backlight source. The bottom board of the backboard of the direct type backlight module is the free curved face, the light-emitting pointing direction of the backlight source is adjusted through the radian of the curved face of the bottom board, and it is avoided that the pointing direction of the maximum light intensity of the backlight source is directly perpendicular to the backlight module, bad optical goods phenomena such as the firefly effect are avoided, meanwhile, the light mixing distance is increased, the needed thickness of the backlight cavity is reduced, and the backlight module can be lighter and thinner.

Disclosed is a liquid crystal display device. The liquid crystal display device comprises a bottom case, an inner frame, a front frame, a liquid crystal display panel and a side light type backlight module. The bottom case comprises a bottom ball, a side wall extending from one outer edge of the bottom wall, a base wall extending inwards from the top end of the side wall, and a plurality of upper protrusion units extending upwards from the top surface of the base wall; the inner frame is integrated onto the bottom case to define a first accommodating space and provided with a plurality of through holes for the protrusion units to penetrate and a plurality of upwards-opened lower recess units; the front frame is arranged on the inner frame to define a second accommodating space and provided with a plurality of downwards-protruded lower protrusion units combined with the lower recess units; the liquid crystal display penal is arranged inside the second accommodating space; the side light type backlight module is arranged inside the first accommodating space and comprises a light strip, which is arranged on the side wall and faces inwards.

The invention discloses a backlight module and a liquid crystal display device. A backplate of the backlight module comprises a vertical plate body and an inclined plate body in an obtuse angle arrangement, wherein the vertical plate body and a liquid crystal display panel are distantly arranged in parallel; a light-guiding plate and a light source are arranged between the vertical plate body and the liquid crystal display panel; a reflective plate is arranged on the inner side of the inclined plate body; a plurality of lens and a plurality of dots are arranged on the emergent surface and the bottom surface of the light-guiding plate respectively. On the basis of the invention, an optical diaphragm for backlighting can be reduced and reduction in the backlighting cost is facilitated.

The invention relates to the technical field of display devices, and provides a backlight module and a display device. The backlight module comprises a back plate unit and a light source unit, the back plate unit comprises a back plate, the back plate is provided with a light mixing cavity, and the light mixing cavity is used for mixing light generated by the light source unit; the light source unit comprises a diffusion substrate, a transparent electrode layer and a light source, the diffusion substrate is arranged on the side, provided with the light mixing cavity, of the back plate, the transparent electrode layer is arranged on the surface of the diffusion substrate, the light source is arranged on the surface of the transparent electrode layer, and the light-emitting face of the lightsource faces the back plate to ensure that light generated by the light source can irradiate the light mixing cavity; the light is mixed by the light mixing cavity and then is emitted from the backlight module; the light source is attached to the surface of the transparent electrode layer, and the light emitting surface of the light source faces the back plate, so that light rays generated by thelight source can irradiate the back plate and reach the diffusion substrate after being reflected by the back plate, the overall thickness of the backlight module can be reduced, and the number of lamp beads in the light source can be reduced.

The invention provides a light guide optical system capable of saving space and achieving uniform lighting and an automobile signal lamp thereof in the technical field of automobile lamps. The light guide optical system comprises a light source, and the light source is correspondingly arranged at the end of a light guide body; an inner lens is correspondingly arranged above the light conductor, and a light guide bracket is correspondingly arranged below the light conductor; the light guide body comprises light guide total reflection optical teeth and a light guide modeling total reflection surface, the light guide total reflection optical teeth are arranged on the light guide body, and the light guide total reflection optical teeth are arranged corresponding to the light incident surface of the inner lens; the light guide support is provided with a first diffusion optical pattern, and the first diffusion optical pattern is arranged corresponding to the light guide modeling total reflection surface. The problem that the lighting effect is not uniform due to the fact that the photoconductor is too close to the inner lens is solved, the effect of increasing the light mixing distance in a small space is achieved, meanwhile, the diffusion effect is added, and the uniform lighting effect is achieved.

The invention discloses an integrated LED light tube. A light holder is integrally formed by aluminum alloy through stretching, the two ends of the light holder are open, a containing space is arranged inside the light holder, and a driving power supply is arranged in the containing space. A mounting platform is arranged on the top portion of the light holder, a groove as deep as 3-6mm is formed in the middle portion of the mounting platform in the length direction of the light tube, a mounting groove is formed in the bottom of the groove, and the two sides of the groove are slopes. Turning edges which bend outwards are arranged on the two sides of the top portion of the groove, a sliding chute which is provided with an outward opening is formed by the turning edges and the mounting platform in a enclosing mode, sliding bars are arranged on the bottom of the two sides of a cover, and the sliding bars are matched with the sliding chute. An LED substrate is arranged in the mounting groove, a plurality of LED chips are arranged on the LED substrate, the LED chips are arranged in a line, and optical strips are arranged on the bottom of the cover. Due to the fact that the LED substrate sinks down, the light mixing distances of the LED chips are increased, and sufficient distance is supplied for uniform mixing of the light of the LED chips.

The invention provides an LED (Light-Emitting Diode) packaging structure, which comprises an LED chip and a frame body, wherein the frame body is used for containing the LED chip, the frame body comprises a bottom wall, a first lateral wall and a light-emitting wall, the LED chip is arranged on the bottom wall, the first lateral wall is obliquely arranged on the light-emitting direction of the LED chip, and rays emitted by the LED chip are emitted out of the light-emitting wall after being reflected through the first lateral wall. The invention further provides a liquid-crystal display device. In the mode, the rays emitted by the liquid-crystal display device and the LED chip in the LED packaging structure of the liquid-crystal display device disclosed by the invention are emitted out of the light-emitting wall after being reflected through the first lateral wall, so that the light-mixing distance of the LED chip is further increased, the generation of a light-emitting blind area is avoided, and the phenomenon of hot spots can be eliminated.