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Light emitting display

A light-emitting display and display technology, applied in lighting devices, electroluminescent light sources, light sources, etc., can solve problems such as limited heat capacity

Active Publication Date: 2009-08-19
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, since the light-emitting display 100 described above only relies on the heat sink 180, its ability to dissipate the heat generated in the pixel circuit part (P) is very limited.

Method used

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Examples

Experimental program
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Effect test

no. 1 example 』

[0036] figure 2 is a cross-sectional view of a light-emitting display according to a first embodiment of the present invention, image 3 Yes figure 2 Exploded view of middle part "B".

[0037] refer to figure 2 , the light emitting display 200 according to the first embodiment of the present invention includes a first electrode 220 formed on a substrate 210 . The first electrode 220 is patterned and insulated by the insulating layer 222 . The organic light emitting part 230 is formed on the first electrode 220, and the second electrode 240 is formed on the light emitting part 230, thereby forming a pixel circuit (P). The getter 250 is attached to the substrate 210 , and the protective cover 260 is fixed to the substrate 210 and sealed by a sealant 270 to protect the pixel circuit (P) from oxygen and moisture penetrating from the outside of the protective cover 260 .

[0038] The spacer 224 is formed between the substrate 210 and the second electrode 240 to protrude hig...

no. 2 example 』

[0049] Figure 4 is a cross-sectional view of a light-emitting display according to a second embodiment of the present invention.

[0050] refer to Figure 4 , the light emitting display 400 according to the second embodiment of the present invention includes a first electrode 420 formed on a substrate 410 . The first electrode 420 is patterned and insulated by the insulating layer 422 . The organic light emitting part 430 is formed on the first electrode 420, and the second electrode 440 is formed on the light emitting part 430, thereby forming a pixel circuit (P). The getter 450 is attached to the second electrode 440 , and the protective cover 460 is attached to the substrate 410 and sealed by a sealant 470 to protect the pixel circuit (P) from oxygen and moisture penetrating from the outside of the protective cover 460 .

[0051] The spacer 424 is formed between the substrate 410 and the second electrode 440 to protrude higher than the light emitting part 430 . Thus, t...

no. 3 example 』

[0062] Figure 5 is a cross-sectional view of a light emitting display according to a third embodiment of the present invention.

[0063] refer to Figure 5 , the light emitting display 500 according to the third embodiment of the present invention includes a first electrode 520 formed on a substrate 510 . The first electrode 520 is patterned and insulated by the insulating layer 522 . The organic light emitting part 530 is formed on the first electrode 520, and the second electrode 540 is formed on the light emitting part 530, thereby forming a pixel circuit (P). A getter 550 is attached to the second electrode 540, and a protective cover 560 is attached to the substrate 510 and sealed by a sealant 570 to protect the pixel circuit (P).

[0064] The spacer 524 is formed between the substrate 510 and the second electrode 540 to protrude higher than the light emitting part 530 . Thus, the second electrode 540 can be divided into a portion 540 a formed on the partition 524 an...

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Abstract

The present invention provides a high-reliability light-emitting display that prevents heat-induced aging, such as color change or brightness reduction, by uniformly and rapidly discharging internally generated heat.

Description

technical field [0001] The invention relates to a light emitting display device. Background technique [0002] A light emitting device used in a light emitting display device is an efficient light emitting device in which a light emitting layer is formed between two electrodes. The device is classified into an inorganic light emitting device and an organic light emitting device according to a light emitting material. According to the driving method of the light emitting layer, light emitting devices are further classified into passive matrix type devices and active matrix type devices. [0003] The lifetime of the light emitting device is mainly determined by the driving time of the display device and the aging of the light emitting device. [0004] Oxidation of the device due to heat generated inside and oxygen and moisture penetrating into the device leads to aging of the light-emitting device, resulting in a reduction in the light-emitting area within it. [0005] This...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/52H01L27/32H05B33/12H05B33/04
CPCH10K59/121H10K59/1216H10K59/17H10K59/1213H10K71/20H10K50/11H10K50/805H10K50/8428H10K50/87H10K50/8426
Inventor 金祐赞尹钟根
Owner LG DISPLAY CO LTD