Lateral backlight module
An edge-type backlight and module technology, which is applied in the field of edge-type backlight modules, can solve problems such as light leakage in the display area, and achieve the effect of reducing light leakage and improving display effects.
Inactive Publication Date: 2018-12-21
HISENSE VISUAL TECH CO LTD
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Problems solved by technology
[0004] In view of the above problems, an embodiment of the present invention is proposed to provide a side-type backlight module that at least overcomes the above problems, to solve the problem that the CSP lamp bead emits light from the gap between the light bar and the light guide plate, so that there is a problem between the light bar and the light bar. There is a serious light leakage problem in the display area on the side
Method used
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Embodiment 1
[0030] refer to figure 1 , shows a schematic cross-sectional view of an edge-type backlight module, the edge-type backlight module may specifically include a light guide plate 10 and a light bar 20, wherein the light guide plate 10 includes a light incident surface W and a light output surface Q, and the light The strip 20 is arranged on the light incident surface side of the light guide plate 10. The light strip 20 may include a substrate 21 and a plurality of CSP lamp beads 22. Due to the viewing angle problem, figure 1 Only one CSP lamp bead 22 is shown in , and the rest of the CSP lamp beads 22 are covered by the CSP lamp bead 22 shown. At least one groove 211 is provided on the light incident surface side of the light guide plate 10 on the substrate 21. The groove 211 includes a bottom and a side wall. The CSP lamp bead 22 is located at the bottom of the groove 211. The side wall of the groove 211 is a reflective surface. Each CSP lamp bead 22 is electrically connected t...
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An embodiment of the invention provides a lateral backlight module and relates to the technical field of display screens. The lateral backlight module comprises a light guide plate and a light bar; the light guide plate comprises a light inlet surface and a light outlet surface; the light bar is arranged on the light inlet surface side of the light guide plate; the light bar comprises a substrateand a plurality of CSP lamp beads; at least one groove is formed in the substrate in a manner of facing the light inlet surface side of the light guide plate; the groove comprises a bottom and side walls; the CSP lamp beads are located at the bottom of the groove; the side walls of the groove are reflecting surfaces; and the CSP lamp beads are electrically connected with the substrate. According to the lateral backlight module, the CSP lamp beads are located at the bottom of the groove, namely, the CSP lamp beads are embedded into the groove, so that the side walls of the groove can block light rays emitted by the side surfaces of the CSP lamp beads and the light rays cannot be emitted out of a gap between the light bar and the light guide plate; and therefore, leaked light generated during display of a display screen can be reduced, and the display effect is improved.
Description
technical field [0001] The invention relates to the technical field of display screens, in particular to a side-entry backlight module. Background technique [0002] CSP lamp bead, that is, a LED (Light Emitting Diode, light emitting diode) light source in a chip scale package (Chip Scale Package, referred to as CSP), its package size is basically the same as the core size of the LED chip. Except for the welding surface, the CSP lamp bead can emit light on the other five sides, and its light-emitting surface is only the size of the chip. Compared with traditionally packaged LED lamp beads, CSP lamp beads have higher light output efficiency and better thermal resistance. [0003] However, in practical applications, when the side-type backlight module uses a light bar including CSP lamp beads as the side-type light source, due to the characteristics of the CSP lamp bead emitting light from five sides, its luminous angle is close to 180 degrees, while the side of the CSP lamp ...
Claims
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Login to View More IPC IPC(8): G02B6/00
CPCG02B6/009
Inventor 张继兵宋麟闫高宾张智睿
Owner HISENSE VISUAL TECH CO LTD