Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Illumination device and liquid crystal display device

A technology for lighting devices and liquid crystal panels, which is applied to lighting devices, components of lighting devices, lighting and heating equipment, etc., to achieve the effects of suppressing moiré, high display quality, and suppressing expansion

Inactive Publication Date: 2010-12-08
SHARP KK
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in a liquid crystal display device, it is known that Moiré occurs due to the pitch of the prisms used in the backlight and the pitch of the pixels of the liquid crystal panel, and it is necessary to implement a moiré countermeasure to suppress the generation of the Moiré.

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
  • Illumination device and liquid crystal display device
  • Illumination device and liquid crystal display device
  • Illumination device and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Embodiments of the lighting device and the liquid crystal display device of the present invention will be described below with reference to the drawings.

[0032] figure 1 It is a cross-sectional view showing the liquid crystal display device 1 according to the embodiment of the present invention. The liquid crystal display device 1 includes a liquid crystal display panel (liquid crystal panel with microlenses) 50 and an illumination device 10 disposed under the liquid crystal display panel 50 (on the surface opposite to the display surface).

[0033] The lighting device 10 includes a light guide plate 12, an LED (Light Emitting Diode: Light Emitting Diode) 14 as a light source arranged on one side of the light guide plate 12, a reflector 16 arranged under the light guide plate 12, prism sheet 18 on the panel side).

[0034] A plurality of inclined surfaces are formed at a lower portion of the light guide plate 12 facing the reflection plate 16 , and the plurality of...

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

No PUM Login to View More

Abstract

An illumination device (10) includes: a light source (14) which emits light; a light guiding plate (12) for propagation of the emitted light; and a prism sheet (18) having a plurality of prisms (26) for refracting the propagating light. The prism sheet (18) contains anisotropic particles (31) having diffusion anisotropy.The arrangement direction (18a) of the prisms (26) is shifted from the longitudinal direction (31a) of the anisotropic particles (31) by an angle greater than 0 and smaller than 5 degrees on the planar direction of the prism sheet (18). This can effectively suppress generation of moire while suppressing spread of the light luminance half-value angle.

Description

technical field [0001] The present invention relates to an illuminating device and a liquid crystal display device. Background technique [0002] In recent years, liquid crystal display devices have been widely used as display devices in monitors, projectors, portable information terminals, mobile phones, and the like. A liquid crystal display device generally changes the transmittance (or reflectance) of the liquid crystal display panel according to a driving signal, modulates the intensity of light from a light source irradiating the liquid crystal display panel, and displays images and characters. Liquid crystal display devices include a direct-view display device that directly observes images displayed on a liquid crystal display panel, and a projection display device (projector) that enlarges and projects images displayed on a liquid crystal display panel on a screen through a projection lens, etc. . [0003] A liquid crystal display device applies driving voltages co...

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
IPC IPC(8): F21V5/00F21S2/00F21V5/02G02B5/02G02B5/04G02F1/13357F21Y101/02G02B6/00
CPCG02B6/0051G02B5/0226G02F1/133615G02B5/0257G02B6/0053G02B5/045
Inventor 臼仓奈留村尾岳洋
Owner SHARP KK
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
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