Flat panel display device and fabrication apparatus thereof and fabrication method thereof
A technology for flat panel display devices and equipment, which can be used in lighting devices, semiconductor/solid-state device manufacturing, electrical components, etc., and can solve problems such as separation, infiltration limitations, and poor pixels.
Active Publication Date: 2007-08-22
SAMSUNG DISPLAY CO LTD
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Problems solved by technology
That is, according to this exemplary method, although the sealing member is bonded to the substrate on which the element is formed using a UV-curable sealant or a thermosetting sealant, since the bonding material is a sealant, it is difficult to protect against oxygen or moisture. There may be limitations in penetration
[0004] In the case where oxygen or moisture penetrates into the inside of the element, its disadvantage is that it is prone to degradation due to internal factors, such as degradation of the emission layer due to oxygen from the first electrode ITO, degradation of the interface due to the reaction of emission, etc. , and due to degradation caused by external factors such as moisture, oxygen, ultraviolet rays, and manufacturing conditions of components, etc.
That is, it causes problems of separation of the emission layer from the electrodes due to penetration of moisture from the outside into the inside of the display unit, and generation of poor pixels, etc.
Method used
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[0027] Hereinafter, various embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
[0028] An organic light emitting display (OLED) is a display device that includes an array of organic light emitting diodes. Organic light emitting diodes are solid state devices comprising organic materials and adapted to generate and emit light when an appropriate electrical potential is applied.
[0029] OLEDs can generally be classified into two basic types according to the settings used to provide the drive current. FIG. 5A schematically shows an exploded view of a simplified structure of a passive matrix OLED 1000 . FIG. 5B schematically shows a simplified structure of an active matrix OLED 1001 . In both structures, the OLED 1000 , 1001 includes an OLED pixel disposed above a substrate 1002 , and the OLED pixel includes an anode 1004 , a cathode 1006 and an organic layer 1010 . When an appropriate current is applied to the a...
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Disclosed is a method of making a flat panel display device. The device has a first substrate, a second substrate opposing the first substrate and an array of pixels formed therebetween. A frit is interposed and interconnects between the first substrate and second substrate. The frit is melted by irradiating a first laser and a second laser. The first and second lasers move along the different paths. Thereby, the frit sealing structure with fine sealing effect can be obtained after the frit pattern solidified.
Description
technical field [0001] The present invention relates to a flat panel display device, and more particularly relates to packaging a flat panel display device. Background technique [0002] Recently, various flat panel display devices have been developed, which can reduce weight and volume, which are disadvantages of cathode ray tubes (CITs). Flat panel display devices include liquid crystal displays, field emission displays, plasma display panels, light emitting displays, and the like. Flat panel display devices have been extensively studied because they can be configured in an ultrathin and flexible form in terms of driving characteristics. In addition, since the characteristics of the field emission display are degraded due to the penetration of moisture, a sealing member is required to prevent the penetration of moisture. [0003] In general, there is a method of making a sealing member by processing a metal can or a cover-shaped glass substrate to have a groove in which ...
Claims
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Login to View More IPC IPC(8): H01L27/32H01L21/50H01L21/54H01L21/56C03C27/00C03C27/06H05B33/10
CPCH10K59/00H10K50/8428H10K50/84H10K71/00
Inventor 李钟禹
Owner SAMSUNG DISPLAY CO LTD