Backlight module

A backlight module and light guide plate technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of light leakage, inability to convert into white light, and quantum dots cannot be distributed, and achieve the effect of preventing light leakage

Inactive Publication Date: 2016-08-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And due to the limitations of the manufacturing process, the quantum dots cannot be distributed at the end of the glass tube, so that the end of the glass tube is an invalid area where light conversion cannot be performed. When the light with a specific luminescent color emitted by the light-emitting unit passes through this invalid area, it cannot be converted. into white light, causing light of a specific luminous color to leak out of this invalid area
In addition, when multiple glass tubes are connected in series, there will be a gap between two adjacent glass tubes, which will cause the ineffective area of ​​the glass tube to become larger, making the light leakage of a specific luminous color more serious.

Method used

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Examples

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Embodiment Construction

[0043] Please refer to figure 1 , which is a schematic cross-sectional view of the display device according to an embodiment of the present invention. Such as figure 1 As shown, the display device 1 described in this embodiment includes a backlight module 10 and a display panel 11 . The display panel 11 is arranged relative to the backlight module 10 . The backlight module 10 includes a light guide plate 101 , a light emitting unit 102 , at least one light converting element 103 and a backplane 104 . The light guide plate 101 has a light incident surface 100 . The light emitting unit 102 is disposed relative to the light incident surface 100 of the light guide plate 101 , and the light converting element 103 is disposed between the light incident surface 100 of the light guide plate 101 and the light emitting unit 102 .

[0044] Please refer to figure 2 , which is figure 1 The schematic diagram of the cross-section of line AA is shown. Such as figure 2 As shown, the ...

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PUM

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Abstract

A backlight module includes a light guide plate, a light emitting element and at least one optical conversion element. The light guide plate has a light inlet surface. The light emitting element is arranged opposite to the light inlet surface of the light guide plate. The light emitting unit comprises at least one first light emitting element and at least one second light emitting element. The first light emitting element has different emitting colors with the at least one second light emitting element. A light conversion element is disposed between the incident surface of the light guide plate and the light emitting element. The light conversion element comprises a light penetration region and ??a light conversion region. The first light emitting element of the light emitting element is corresponding to the light conversion region, and the second light emitting element is corresponding to the light penetration region.

Description

【Technical field】 [0001] The present invention relates to a backlight module, and in particular to a backlight module with light converting elements. 【Background technique】 [0002] Quantum dots are nanocrystals having a diameter equal to or less than about 10 nanometers (nm), are composed of semiconductor materials, and cause a quantum confinement effect. Quantum dots produce more intense light at a narrower wavelength band than typical phosphors. Since the wavelength of light changes according to the size of the quantum dots, light having a desired wavelength region can be obtained by controlling the size of the quantum dots. [0003] By sealing the quantum dots in a glass tube (or other packaging structure), and using the glass tube sealed with quantum dots as the light conversion element of the backlight module in the display device, that is, the light conversion element is arranged in the backlight Between the light guide plate of the module and the light emitting uni...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G02F1/13357
Inventor杨孟融
OwnerAU OPTRONICS CORP