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Backlight module

a backlight module and module technology, applied in the field of backlight modules, can solve problems such as non-uniform brightness

Active Publication Date: 2020-09-10
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]In summary, the backlight module provided in the present disclosure is able to guide the light emitted by the light emitting element on the first side to an end of the first opening close to the second side, thereby avoiding the problem that the light intensity cannot be uniformly distributed due to the first opening of the backlight module.

Problems solved by technology

However, as a result, an opening need to be formed in the display module and the backlight module in the display area, and such a design may cause a problem of nonuniform brightness near the opening of the display area.

Method used

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Embodiment Construction

[0017]For the embodiment below is described in detail with the accompanying drawings, embodiments are not provided to limit the scope of the present disclosure. Moreover, the operation of the described structure is not for limiting the order of implementation. Any device with equivalent functions that is produced from a structure formed by a recombination of elements is all covered by the scope of the present disclosure. Drawings are for the purpose of illustration only, and not plotted in accordance with the original size.

[0018]Referring to FIG. 1, which illustrates a front view of an electronic device 10 according to an embodiment of the present disclosure. Taking the present embodiment as an example, the electronic device 10 is a mobile phone having a display function and a photographing function. As shown in FIG. 1, the first surface 10a of the electronic device 10 has a display area DA and a frame area PA, in which the display area DA may display color images, and a first openi...

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Abstract

A backlight module includes a light guide plate that has a first side and a second side, a light emitting element, and a light guide element. The light emitting element is adjacent to the first side of the light guide plate. The light guide element is disposed between the first side and the second side, and forms a first opening therein. The light guide element includes a first refractive part and a second refractive part. The first refractive part has a first refractive index, the second refractive part has a second refractive index, and the first refractive index and the second refractive index are different from a refractive index of the light guide plate. The orthogonal projections of the first refractive part and the second refractive part on the first side are non-overlapped with each other.

Description

RELATED APPLICATION[0001]This application claims priority to Taiwan Application Serial Number 108107311, filed Mar. 5, 2019, and Taiwan Application Serial Number 108126223, filed Jul. 24, 2019, all of which are herein incorporated by reference.BACKGROUNDTechnical Field[0002]The present disclosure relates to a backlight module.Description of Related Art[0003]In conventional handheld electronic devices, a variety of functional components are buried in the areas of the upper frame and the lower frame. In some electronic devices nowadays, the design of the upper frame is called off and the front camera is disposed in the center of the display area in order to pursue a higher screen-to-body ratio. However, as a result, an opening need to be formed in the display module and the backlight module in the display area, and such a design may cause a problem of nonuniform brightness near the opening of the display area. Therefore, how to solve the above problem is one of the important topics in...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F21V8/00
CPCG02B6/0088G02B6/0078G02F1/133615G02F1/133606G02B6/0033G02F1/133607G02B6/002
Inventor LO, YEN-HUAHUANG, HSIN-CHUN
Owner AU OPTRONICS CORP