초록 ▼

An edge-lit back plate has two mounting frames coupled to opposite longitudinal side surfaces of a back plate including a laminate body with a reflector, a light guide and a diffuser. At least one light source assembly is located within a recess of each mounting frame and positioned adjacent to one

An edge-lit back plate has two mounting frames coupled to opposite longitudinal side surfaces of a back plate including a laminate body with a reflector, a light guide and a diffuser. At least one light source assembly is located within a recess of each mounting frame and positioned adjacent to one of the longitudinal side surfaces of the laminate body. The edge-lit back plate is configured to be installed on a rack to illuminate products on such rack.

대표청구항 ▼

1. A luminescent back plate comprising a back light module having a body being a rectangular plate and being a laminate comprising a reflector, a light guide and a diffuser and having two longitudinal side surfaces, a front surface and a bottom surface; andat least one light source assembly being sh

1. A luminescent back plate comprising a back light module having a body being a rectangular plate and being a laminate comprising a reflector, a light guide and a diffuser and having two longitudinal side surfaces, a front surface and a bottom surface; andat least one light source assembly being shaped corresponding to and located adjacent to one of the longitudinal side surfaces of the body and having a light emitting side, the light emitting side facing toward a corresponding one longitudinal side surface; andtwo mounting frames being respectively mounted on the two longitudinal side surfaces of the body, and each mounting frame having a frame base having a connecting surface attached to one of the longitudinal side surfaces of the body;an outer surface being against the connecting surface;a clamping flange protruding from the connecting surface and attached to the front surface near a corresponding longitudinal surface; anda light source recess being shaped corresponding to one of the at least one light source assembly and being formed in the connecting surface, wherein each one of the at least one light source assembly is held in the light source recess in one of the mounting frames; anda clamping cover being detachably mounted on the frame base opposite to the clamping flange and attached to the bottom surface of the body to hold a corresponding longitudinal side surface of the body on the mounting frame with the clamping flange. 2. The luminescent back plate as claimed in claim 1, wherein the at least one light source assembly is a cold cathode fluorescent lamp. 3. The luminescent back plate as claimed in claim 1, wherein the at least one light source assembly is a bar-like light emitting diode (LED) assembly, the bar-like LED assembly having an LED module having a bar-like printed circuit board (PCB) and multiple LEDs being mounted on the bar-like PCB, wherein the LEDs are grouped as at least one LED set; andat least one driving chip being electronically connected to the bar-like PCB, the at least one driving chip being connected to a corresponding LED set to drive the corresponding LED set to emit light toward the body. 4. The luminescent back plate as claimed in claim 3, wherein the luminescent back plate further has a pattern sheet being a transparent sheet having a pattern thereon, and the pattern sheet is mounted between the back light module and the slot plate. 5. The luminescent back plate as claimed in claim 4, wherein the frame base further has a rack connecting structure being formed on the outer surface of the frame base. 6. The luminescent back plate as claimed in claim 1, wherein the luminescent back plate further has a slot plate being transparent, being shaped corresponding to the back light module, being located on the front surface of the body and having a front surface and multiple slots being separately formed in the front surface of the slot plate and vertical to the longitudinal side surfaces. 7. The luminescent back plate as claimed in claim 6, wherein the at least one light source assembly is a cold cathode fluorescent lamp. 8. The luminescent back plate as claimed in claim 6, wherein the at least one light source assembly is a bar-like LED assembly, the bar-like LED assembly having an LED module having a bar-like PCB and multiple LEDs being mounted on the bar-like PCB, wherein the LEDs are grouped as at least one LED set; andat least one driving chip being electronically connected to the bar-like PCB, the at least one driving chip being connected to a corresponding LED set to drive the corresponding LED set to emit light toward the body. 9. The luminescent back plate as claimed in claim 8, wherein the luminescent back plate further has a pattern sheet being a transparent sheet having a pattern thereon, and the pattern sheet is mounted between the back light module and the slot plate. 10. The luminescent back plate as claimed in claim 9, wherein the frame base further has a rack connecting structure being formed on the outer surface of the frame base. 11. The luminescent back plate as claimed in claim 6, wherein the luminescent back plate further has two fixing assemblies being respectively located corresponding to the mounting frames and each fixing assembly having a corner strip being mounted on the slot plate and a corresponding mounting frame; andmultiple screws being separately aligned with each other to mount the slot plate on the corresponding mounting frames. 12. The luminescent back plate as claimed in claim 11, wherein the at least one light source assembly is a cold cathode fluorescent lamp. 13. The luminescent back plate as claimed in claim 11, wherein the at least one light source assembly is a bar-like LED assembly, the bar-like LED assembly having an LED module having a bar-like PCB and multiple LEDs being mounted on the bar-like PCB, wherein the LEDs are grouped as at least one LED set; andat least one driving chip being electronically connected to the bar-like PCB, the at least one driving chip corresponding to and being connected to a corresponding LED set to drive the corresponding LED set to emit light toward the body. 14. The luminescent back plate as claimed in claim 13, wherein the luminescent back plate further has a pattern sheet being a transparent sheet having a pattern thereon, and the pattern sheet is mounted between the back light module and the slot plate. 15. The luminescent back plate as claimed in claim 14, wherein the frame base further has a rack connecting structure being formed on the outer surface of the frame base.