Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Light guide plate and backlight module using same

A backlight module, light guide plate technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of no diffusion function, poor light uniformity effect, etc., to improve the brightness and uniformity of light output, and avoid bright lines. Effect

Inactive Publication Date: 2008-07-30
IND TECH RES INST
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The microstructure on the surface of the light guide plate with this structural design only has the function of collecting light and does not have the function of diffusing, and the light uniformity provided is not good.

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
  • Light guide plate and backlight module using same
  • Light guide plate and backlight module using same
  • Light guide plate and backlight module using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Figure 3A 8B is drawn according to Embodiment 1 of the light guide plate and the backlight module having the light guide plate of the present invention.

[0050] see Figure 3A , which is a three-dimensional schematic diagram of the structure of the light guide plate in Embodiment 1. The light guide plate 3 as shown in the figure includes a light-transmitting substrate 31 , a first microstructure 33 and a second microstructure 35 .

[0051] Such as Figure 3A As shown, the transparent substrate 31 has a first optical surface 311 and a second optical surface 313 opposite to each other. In this embodiment, the transparent substrate 31 may be a transparent substrate or other equivalent transparent components.

[0052] The first microstructure 33 is disposed on the first optical surface 311, and is made of, for example, a light-transmitting material, and has a diffuser 331 and a light-collecting part 333 juxtaposed to each other. The diffuser 331 and the light-collectin...

Embodiment 2

[0066] Figure 9 It is drawn according to Embodiment 2 of the light guide plate and the backlight module with the light guide plate of the present invention. Wherein, the same or similar components as in Embodiment 1 are represented by the same or similar component symbols, and detailed descriptions are omitted to make the description of this case clearer and easier to understand.

[0067] The biggest difference between Embodiment 2 and Embodiment 1 is that in the light guide plate of Embodiment 2, the first microstructure is provided with at least one diffused light-collecting composite part, instead of having a diffused part and a light-collecting composite part as in Embodiment 1. department.

[0068] Such as Figure 9 The shown light guide plate 3 includes a transparent substrate 31 , a first microstructure 33 and a second microstructure 35 . The light-transmitting substrate 31 and the second microstructure 35 can choose the same structure as the light-transmitting subs...

Embodiment 3

[0072] Figure 10 It is drawn according to Embodiment 3 of the light guide plate and the backlight module with the light guide plate of the present invention. Wherein, the same or similar components as those in the above-mentioned embodiments are represented by the same or similar component symbols, and detailed descriptions are omitted.

[0073] The biggest difference between the third embodiment and the above-mentioned embodiments is that the first microstructure is provided with a diffused light-collecting recombination part and a light-collecting part juxtaposed to each other.

[0074] see Figure 10 In the light guide plate 3 of this embodiment, the first microstructure 33 is provided with a diffused light-collecting recombination part 335 and a light-collecting part 333 which are spaced and juxtaposed to each other for the function of diffusing and collecting light. Same as the above-mentioned embodiment, the light-diffusing composite part 335 also has an arcuate surfa...

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
radiusaaaaaaaaaa
Login to View More

Abstract

The light guide plate comprises: a translucent substrate with two optical surfaces, and two micro structures set surfaces respectively. This multifunctional invention applies the design feature and controllability of micro structures to adjust field distribution and strength of emergence light, improves brightness and evenness, and overcomes defects in prior art.

Description

technical field [0001] The invention relates to an optical modulation technology, in particular to a light guide plate and a backlight module with the light guide plate. Background technique [0002] In recent years, due to the continuous advancement of technology, the new generation of digital products can not only integrate technologies in the three major fields of information, consumption and communication, but also have multimedia functions at the same time. In this multimedia function, image processing technology has gradually become a development area that attracts consumers' attention along with the maturity of various component technologies and increasing applications. Driven by the sharp increase in the demand for imaging applications, there are more and more digital products integrating display functions, which relatively increases the demand for displays, and the most popular among them is the LCD screen. According to the report of Display Search, it is estimated...

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 Patents(China)
IPC IPC(8): G02F1/1335
Inventor 姚柏宏鲍友南孙翊庭林本胜林宗信
Owner IND TECH RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com