External light-shielding layer, filter for display device including the external light-shielding layer and display device including the filter
A display device and optical filter technology, applied in the direction of optical filters, magnetic/electric field shielding, electrical components, etc., can solve the problems of deteriorating PDP image display quality, preventing, reducing panel contrast, etc.
Inactive Publication Date: 2008-07-16
ASAHI GLASS CO LTD
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[0007] However, conventional PDP filters cannot prevent outside light from entering the panel assembly in brighter indoor conditions
Ambient light entering the panel assembly may interfere with light emitted from discharge cells in the panel assembly, thereby lowering the contrast of the panel operating in brighter room conditions, ultimately deteriorating the image display of the PDP. ability
[0008] In addition, in the conventional PDP filter, the Moiré phenomenon occurs due to interference fringes generated when two or more periodic patterns are formed between pixels and the PDP filter, which may deteriorate the PDP filter. image display quality
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[0034] The advantages and features of the present invention and the method of realizing them can be explained by referring to the detailed description of the preferred embodiments and the accompanying drawings. However, the invention may be embodied in many different forms, and detailed descriptions of specific embodiments should not be construed as limiting the invention to those embodiments; Concepts are passed on to those of ordinary skill. The invention is defined by the appended claims, and like reference numerals refer to like parts throughout the specification.
[0035]The present invention can be applied to different displays, including large displays such as plasma display panels (PDPs), organic light emitting diode displays (OLEDs), liquid crystal displays (LCDs) or field emission displays (FEDs) that use matrix patterned pixels to achieve RGB color display. Small size displays such as personal digital assistants (PDAs), small game device display windows or mobile p...
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An external light shielding layer capable of improving visible light transmittance and contrast ratio and preventing Moire fringes and Newton ring phenomena, a display filter including the external light shielding layer, and a display device including the display filter. The external light-shielding layer includes a transparent resin matrix, and a plurality of light-shielding patterns formed on the transparent resin matrix and separated from each other at predetermined intervals, wherein the light-shielding pattern is formed between a transmission direction of the light-shielding patterns and a longer side of the matrix. The deflection angle (α) is in the range of about 5-80 degrees.
Description
technical field [0001] The present invention relates to an external light shielding layer, a filter for a display device including the external light shielding layer, and a display device including the filter. In particular, the present invention relates to a filter for a display device including an external light shielding layer capable of improving contrast ratio and Moire phenomenon in a bright room, and a display device including the display filter. Background technique [0002] As modern society becomes more information-oriented, image display devices and equipment technologies are advancing, and these devices are becoming widespread. In particular, image display devices are widely used in such as TV screens and PC monitors. Thin-built widescreens have become mainstream display devices. [0003] In particular, plasma display panels (PDPs) are popular as next-generation display devices to replace cathode ray tubes (CRTs), because PDPs are thin, have large screens, and ...
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IPC IPC(8): G02B5/20H01J17/49H01J17/16H05K9/00
Inventor 朴大出崔宰荣朴台淳郑相澈吕镇宇徐瑨
Owner ASAHI GLASS CO LTD