Backlight module and display device

A technology of backlight module and light-emitting surface, applied in optics, nonlinear optics, instruments, etc., can solve problems such as adverse effects on the display effect of liquid crystal display panels, and achieve the effects of improving display effect, reducing halo, and improving uniformity

Active Publication Date: 2019-11-26
XIAMEN TIANMA MICRO ELECTRONICS
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fewer partitions used in the backlight module, the larger the light area, and the easier it is for the luminous effect to adversely affect the overall display effect of the LCD panel.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Backlight module and display device
  • Backlight module and display device
  • Backlight module and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should be understood that the term "an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
angleaaaaaaaaaa
Login to view more

Abstract

The invention provides a backlight module and a display device. The backlight module comprises a substrate, a number of light-emitting diodes arranged on the substrate, and a number of subregions arranged in an array. At least one light-emitting diode is arranged in each subregion. The backlight module further comprises at least one grating structure arranged on the substrate, and an optical filmlocated on one side, which is away from the substrate, of the light-emitting diodes and the grating structure. The grating structure is arranged between two adjacent subregions, and the transmittanceof the grating structure is greater than zero. In a direction perpendicular to the light-emitting surface of the backlight module, the distance between the substrate and the optical film is H. The distance between one side, which is close to the substrate, of the grating structure and one side, which is away from the substrate, of the grating structure is h. h is less than H. According to the invention, the uniformity of the light emission of the backlight module can be improved, and the display effect of the display device is improved.

Description

【Technical field】 [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device including the backlight module. 【Background technique】 [0002] The backlight module is one of the key components of the liquid crystal display panel. Its function is to supply sufficient brightness and uniformly distributed light source so that it can display images normally. [0003] With the development of display technology, the applicable scenarios of liquid crystal display panels are gradually expanding. For fields such as on-board displays, with the clarity and diversification of on-board displays, and the increasing market share of electric vehicles and smart cars, low-power and high-contrast on-board displays will gradually increase. The most effective solution to improve the contrast and power consumption of the liquid crystal display panel is to use local dimming (Local dimming) technology, that is, to adjust and control the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133611
Inventor 陈建群方丽婷吴玲沈柏平
Owner XIAMEN TIANMA MICRO ELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap