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Diffusion sheet and method of manufacturing the same, display using the same and method of manufacturing roller

A technology of a liquid crystal display device and a diffusing sheet, which is applied in the field of diffusing sheets, can solve the problems of high cost, complex diffusing sheets, expensive prism sheets, etc., and achieve the effects of improving brightness, reducing manufacturing costs, and simplifying the manufacturing process

Inactive Publication Date: 2006-04-26
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While a diffuser is useful for diffusing light, it has the negative effect of reducing the overall brightness of the display
[0005] Another disadvantage of the diffuser is that it increases the manufacturing cost as a complex process is required to manufacture the diffuser
Prisms are also relatively expensive
Therefore, the cost of devices using both prism sheets and diffuser sheets ends up being undesirably high

Method used

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  • Diffusion sheet and method of manufacturing the same, display using the same and method of manufacturing roller
  • Diffusion sheet and method of manufacturing the same, display using the same and method of manufacturing roller
  • Diffusion sheet and method of manufacturing the same, display using the same and method of manufacturing roller

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Embodiment Construction

[0041] It should be understood that the exemplary embodiments of the invention described below may be modified in many different ways without departing from the inventive principles disclosed herein, and that the scope of the invention is therefore not limited to these specific embodiments. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and by way of illustration and not limitation, will fully convey the concept of the invention to those skilled in the art.

[0042] As used herein, "longitudinal" indicates the direction in which the longest dimension of a structure extends.

[0043] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0044] figure 1 is a perspective view showing a diffusion sheet according to an exemplary embodiment of the present invention, and figure 2 is showing figure 1 Cross-sectional view of the diffuser.

[0045] refer to figure ...

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Abstract

The invention discloses a diffusing sheet, a method for manufacturing the diffusing sheet, a method for manufacturing a roller for manufacturing the diffusing sheet, and a display device with the diffusing sheet. The diffusion sheet scatters light to improve brightness uniformity. The scattering sheet includes a base film and a scattering layer. The base film is optically transparent. The scattering layer is formed on the surface of the base film. The scattering layer includes a scattering pattern having a plurality of first scattering members improving front brightness. A cross section of each first scattering member has an arc shape, the cross section being taken along a line substantially perpendicular to the longitudinal direction of the first scattering member. The backlight assembly using the diffusion sheet does not need the prism sheet commonly used to improve the brightness of the front view, thereby reducing the manufacturing cost.

Description

technical field [0001] The present invention generally relates to a diffusion sheet, a method of manufacturing the diffusion sheet, a method of manufacturing a roll for manufacturing the diffusion sheet, and a display device having the diffusion sheet. More specifically, the present invention relates to a diffusion sheet capable of improving brightness, a method of manufacturing the diffusion sheet, a method of manufacturing a roll for manufacturing the diffusion sheet, and a display device having the diffusion sheet. Background technique [0002] Liquid crystal display (LCD) devices display images by using liquid crystal molecules. LCD devices have many advantages such as light weight, low driving voltage, low power consumption, etc., and are used as display devices in various fields. [0003] An LCD device includes a backlight assembly and an LCD panel. The backlight assembly provides light for the LCD panel. The LCD panel displays images by using light supplied from a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02B5/02
CPCG02B5/0215G02B5/0268G02B5/0278G02F1/133504G02F1/133604G02F1/133606G02F1/133507G02F1/133607G02F1/1335
Inventor 崔震成朴辰赫李正焕李喜春郑镇美
Owner SAMSUNG ELECTRONICS CO LTD