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Light guiding and dispersing plate and display device having the same

A technology for display devices and light guide plates, which is applied in light guides, optics, optical components, etc., and can solve problems such as high manufacturing costs of backlight components, difficult management of backlight component assembly, and light loss

Inactive Publication Date: 2012-08-22
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such backlight assemblies typically contain a series of light-transmitting media (e.g., layers) with different indices of refraction, making the interfaces between these media difficult because light passes through all of the media and refracts a portion of the light as it passes through each interface. resulting in a considerable amount of optical loss
Furthermore, assembly of backlight assemblies is relatively difficult to manage because they typically include many individual optical sheets, wherein the manufacturing cost of backlight assemblies is high due to the large number of individual components and the overhead required to process each of them. usually very high

Method used

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  • Light guiding and dispersing plate and display device having the same
  • Light guiding and dispersing plate and display device having the same
  • Light guiding and dispersing plate and display device having the same

Examples

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Embodiment Construction

[0057] The present invention will now be more fully disclosed by referring to the accompanying drawings in which exemplary embodiments are shown.

[0058] figure 1 An exploded perspective view of a liquid crystal display (LCD) device 1 according to an exemplary embodiment is shown. see figure 1 The LCD device 1 includes a display panel assembly 10 displaying images by means of light, a backlight assembly 20 providing light to the display panel assembly 10 , and a frame unit 30 accommodating and fixing the display panel assembly 10 and the backlight assembly 20 .

[0059] The display panel assembly 10 includes a display panel 110 displaying an image and a driving unit 120 driving the display panel 110 . The display panel 110 includes a thin film transistor (TFT) substrate 112 , a color filter substrate 112 , and a liquid crystal layer (not shown) interposed between the TFT substrate 112 and the color filter substrate 112 . The driving unit 120 is arranged on one side of the ...

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PUM

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Abstract

A monolithic light guiding and dispersing plate is provided in a backlighted display panel for receiving input light from one or more edge sources and for guiding the received light throughout the plate for substantially uniform reflection upwardly and substantially uniform dispersal toward an image forming plane located above the light guiding and dispersing plate. In one embodiment, the light guiding and dispersing plate has a light receiving surface upon which the light generated by an edge light source is incident, a top major surface which is adjacent to the light receiving surface and on which a plurality of first protrusions are formed and elongated in a first direction, wherein the first protrusions have cross-sections in the shapes of partial ellipses. The plate further has a bottom major surface in which light reflecting recesses are defined to reflect light upwardly towards the top major surface.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2007-0114992 filed with the Korean Intellectual Property Office on Nov. 12, 2007, the contents of which are hereby incorporated by reference in their entirety. technical field [0002] The present disclosure relates to a light guiding and diffusing plate and a display device including the light guiding and diffusing plate, and more particularly, to a method capable of improving a display device (for example, a liquid crystal display (LCD) device) equipped with a backlight assembly. A light guide plate with brightness and brightness uniformity, and a display device including the light guide plate. Background technique [0003] A backlight assembly widely used in liquid crystal display (LCD) devices is an important element that can affect the brightness and appearance of the LCD device. Backlight components are divided into direct-type backlight drive components and edge-type backlight drive componen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02B6/00F21V8/00
CPCG02B6/0068G02B6/0038G02F1/1335
Inventor 金炯柱权载中白承仁沈成圭康盛旭李埈泳黄仁瑄
Owner SAMSUNG DISPLAY CO LTD