Backlight module, and display device comprising the backlight module

Abstract

The invention relates to a backlight module for a display screen. The backlight module comprises first light emitting units located on two sides of the backlight module, and a second light emitting unit between the first light emitting units on the two sides, each of the first light emitting units and the second light emitting unit comprises a plurality of light emitting elements, and the distancebetween the light emitting element of the first light emitting unit and a display module of the display screen is smaller than the distance between the light emitting element of the second light emitting unit and the display module of the display screen. The invention further relates to a display screen comprising the backlight module, and a display device comprising the display screen.

Description

technical field [0001] The examples of the present invention relate to the field of display technology, in particular to the field of backlight source technology. Background technique [0002] Currently, narrow bezel mobile phones such as full-screen mobile phones are an important trend in the development of mobile phones. In order to increase the screen ratio of mobile phones, the bezels of mobile phone modules are getting narrower and narrower, and the corners of the backlight modules are designed to be rounded. There are display problems such as dimming of the two corners of the group, which affects the user experience. [0003] In addition, because the display ratio of the full-screen mobile phone module is 18:9 or higher, the mobile phone module is "narrower and longer", which limits the number of light-emitting elements (such as 3004 packaged LEDs) in the backlight module, and there is a problem of insufficient brightness. risk. If the number of 3004 packaged LEDs is...

AI Technical Summary

Problems solved by technology

[0002] Currently, narrow bezel mobile phones such as full-screen mobile phones are an important trend in the development of mobile phones. In order to increase the screen ratio of mobile phones, the bezels of mobile phone modules are getting narrower and narrower, and the corners of the backlight modules are designed to be rounded. There are display problems such as dimming of the two corners of the group, which affects the user experience

[0003] In addition, because the display ratio of the full-screen mobile phone module is 18:9 or higher, the mobile phone module is "narrower and longer", which limits the number of light-emitting elements (such as 3004 packaged LEDs) in the backlight module, and there is a problem of insufficient brightness. risk

If you want to ensure the number of 3004 packaged LEDs, you cannot set a barrier between these LEDs in the plastic frame, so the strength is poor

For example, if figure 1 and figure 2 As shown, the backlight module 1' includes 16 3004 packaged LEDs, in which the LEDs are evenly arranged, the distance between adjacent LEDs (ie d3') is equal and the size is small, and it is impossible to set a barrier wall; the LED flexible circuit board and The sticking area of ​​the plastic frame is small, and there is a risk of strength; in addition, the thickness of the plastic frame (ie d1') at the two corners of the backlight module is small, so the molding of the plastic frame is difficult and it is impossible to set a retaining wall. Resulting in a greater risk of light leakage at the two corners

[0004] In addition, if 1803-packaged LEDs and other smaller-packaged light-emitting elements are used to solve the problem of limited number of 3004-packaged LEDs, new problems such as increased costs and severe heat generation will follow.

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