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A display device and its manufacturing method

A technology for a display device and a manufacturing method, which is applied in the fields of printing image acquisition, instrumentation, calculation, etc., and can solve problems such as uneven brightness and darkness of a display panel, and achieve the effect of making up for differences in light transmittance and improving uneven brightness and darkness

Active Publication Date: 2022-04-19
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a backlight module, its manufacturing method, and a display device to solve the problem of uneven brightness and darkness in existing display panels with fingerprint recognition areas

Method used

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  • A display device and its manufacturing method
  • A display device and its manufacturing method
  • A display device and its manufacturing method

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Embodiment Construction

[0026] as Figure 1 As shown, the fingerprint recognition function is implemented in the liquid crystal display panel, such as Figure 2 and Figure 3 As shown, the fingerprint recognition area P is currently set in the liquid crystal display panel 02, only the light sensitive sensor 03 (sensor) is set in the fingerprint recognition area P, that is, the light sensor 03 is set in the local position of the liquid crystal display panel 02 in the liquid crystal box, and the visible light emitted by the backlight 011 passes through the light guide plate 012, the lower polarizer 021, the array substrate 022, the gap between the photosensitive sensor 03, the color film substrate 023, the upper polarizer 024 and the protective cover plate 025, The fingerprint irradiated to the finger 04, after the reflection of the fingerprint valley b and the fingerprint ridge a in the fingerprint, irradiated to the photosensitive sensor 03, the photoconductor sensor 03 converts the received light signal ...

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Abstract

An embodiment of the present disclosure provides a display device and a manufacturing method thereof, including a backlight module and a liquid crystal display panel, by arranging phosphor powder at a local position of the light guide plate of the backlight module, that is, the first area, and separately arranging a blue LED to emit blue light Excite the phosphor powder to get white light. When the side-type backlight is working, the blue LED illuminates the phosphor powder in the first area at the same time, so that the first area of ​​the light guide plate can achieve self-illumination, and the brightness of the light guide plate in the first area is greater than that in the second area. Second area. The first area of ​​the backlight module corresponds to the first display area with a small light transmittance in the liquid crystal display panel, and the second area of ​​the backlight module corresponds to the second display area with a large light transmittance in the liquid crystal display panel, Increasing the brightness of the first area in the backlight module can compensate for the difference in light transmittance between the first display area and the second display area of ​​the liquid crystal display panel, thereby improving the problem of uneven brightness and darkness.

Description

Technical field [0001] The present invention relates to the field of display technology, particularly refers to a display device, a method of production thereof. Background [0002] At present, the realization of fingerprint recognition function in the liquid crystal display panel is to set the photosensitive sensor in the fingerprint recognition area of the liquid crystal display panel, and the photosensitive sensor will occupy the space in the liquid crystal box, resulting in a light penetration rate in the fingerprint recognition area being less than other positions, so that the brightness of the fingerprint recognition area and other locations is different, and the phenomenon of uneven brightness and darkness appears visually. Contents of the Invention [0003] Embodiments of the present invention provides a backlight module, a production method thereof and a display device, to solve the problem of uneven brightness and darkness of the existing display panel having a finger...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02F1/1333G06V40/13
CPCG02F1/133615G02F1/13338G02F1/133614G06V40/1318
Inventor 马雄斌
Owner XIAMEN TIANMA MICRO ELECTRONICS