Backlight module and display device
A technology of backlight module and light source, applied in the direction of light guide, optics, optical components, etc., can solve the problems of high power consumption, affecting the battery life of mobile phones, and rapid decline of battery power of mobile phones, so as to reduce power consumption and improve utilization. rate effect
Active Publication Date: 2018-06-08
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0004] However, in practical applications, it is found that when the flashlight function is turned on, the battery of the mobile phone not only needs to supply power for the backlight on the mobile phone, but also needs to supply power for the flashlight, resulting in high power consumption, and the power of the mobile phone battery drops rapidly, which affects the use of the mobile phone battery. time
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[0031] In order for those skilled in the art to better understand the technical solution of the present invention, a backlight module and a display device provided by the present invention will be described in detail below with reference to the accompanying drawings.
[0032] figure 1 It is a schematic structural diagram of a backlight module provided in Embodiment 1 of the present invention, figure 2 for figure 1 The schematic diagram of the light output path in the backlight module shown, as shown in figure 1 and figure 2 As shown, the backlight module includes: a light guide plate 1, a light source 2, a switching layer 3 and a light guide structure 4; wherein the light guide plate 1 has at least one first side 1a and at least one second side 1b; the light source 2 is arranged on the light guide plate 1 The switching layer 3 is arranged on the second side 1b of the light guide plate 1; the light guiding structure 4 is located on the side of the switching layer 3 facing ...
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The invention discloses a backlight module and a display device. The backlight module comprises a light guide plate, wherein the light guide plate comprises a first side face and a second side face; alight source is arranged on the first side face; at least one switch layer is arranged on the second side face; the switch layer has ability of switching between a light-transmitting state and a light-proof shading state; a light guide structure is formed in one side, which is back on to the light guide plate, of the switch layer and comprises an incident end and an emergent end; the incident endfaces the switch layer; and the emergent end is connected with a preset emergent area. According to the backlight module disclosed by the invention, when the switch layer is positioned in a light-transmitting state, part of light exiting from the second side face of the light guide plate transmits through the switch layer, comes into the light guide structure by virtue of the incident end, and then exits from the emergent end by virtue of the conduction effect of the light guide structure. The backlight module can provide light rays for a display panel and also provide light rays for the preset emergent area, so that the backlight utilization rate can be improved. In addition, an extra power supply is not needed in the process of realizing light exiting in the preset emergent area, and the power consumption can be effectively reduced.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] Purpose, in order to increase the value of the display device, some additional functions are often integrated on the display device. Taking the display device as a mobile phone as an example, the mobile phone not only has a basic screen display function, but also has a lighting function (such as a flashlight function and a camera flash function). [0003] Taking the flashlight function on a mobile phone as an example, a high-brightness light-emitting device is installed on the back or side of the mobile phone, and the battery of the mobile phone is connected to the high-brightness light-emitting device. Bright light emitting device lights up. [0004] However, in practical applications, it is found that when the flashlight function is turned on, the battery of the mobile phone not only needs to supply power...
Claims
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IPC IPC(8): G02B6/00
CPCG02B6/0033G02B6/009
Inventor 王世鹏杨瑞锋陈家兴于洪洋吕红亮王博宁
Owner BOE TECH GRP CO LTD