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Electroluminescence display device

A display device, electroluminescent technology, applied in the field of electroluminescent display devices, can solve the problems of not reducing

Active Publication Date: 2006-06-21
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] However, although the line resistances of the cathodes SL1 to SLn are lowered, the line resistances of the first and second sub cathodes SL1-1, SL1-2 to SLn-1, SLn-2 formed on the EL cell array region are not lowered. , therefore, this method is limited to reducing the power consumption of organic EL display devices

Method used

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  • Electroluminescence display device
  • Electroluminescence display device
  • Electroluminescence display device

Examples

Experimental program
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no. 1 example

[0055] Figure 5a is a schematic diagram partially showing the organic EL display device according to the first embodiment of the present invention, and part "B" is shown in detail.

[0056] refer to Figure 5a , the organic EL display device according to the first embodiment of the present invention includes: anode columns DL1, DL2, and DL3; cathode SL1, covering the anode columns; and a main wall 18a and a secondary wall 18b, covering the anode columns DL1, DL2, and DL3, and The cathodes SL1 are parallel.

[0057] Here, the secondary wall 18b divides a part of the cathode SL1 (that is, the part corresponding to the active region) into the first and second sub-cathodes SL1-1 and SL1-2, therefore, in the coverage of one anode column DL1 and one cathode SL1 Two separate units are formed on the district. Furthermore, although the main wall 18a extends to the non-display area (non-light emitting area), the sub-wall 18b is formed only on the cell array area (active area).

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no. 2 example

[0064] Figure 7a is a schematic diagram partially showing an organic EL display device according to a second embodiment of the present invention, and shows in detail Figure 4 Part "B" of . Figure 7b is along Figure 7a The cross-sectional view taken at line 7b-7b.

[0065] exist Figure 7a Among them, the organic EL display device according to the second embodiment of the present invention includes: anode columns DL1, DL2 and DL3; cathode SL1 covering the anode columns; and a main wall 18a and a secondary wall 28b covering the anode columns and parallel to the cathode SL1.

[0066] Here, the sub-wall 28b divides a part of the cathode SL1 (ie, the part corresponding to the active region) into the first and second sub-cathodes SL1-1 and SL1-2, and therefore, in one anode column (for example, DL1) and one Two separate cells are formed on the footprint of cathode SL1. In addition, although the main wall 18a extends to the non-display area, the sub wall 28b is formed only on...

no. 3 example

[0072] Figure 8 is a schematic diagram partially showing an organic EL display device according to a third embodiment of the present invention, and shows in detail Figure 4 Part "B" shown.

[0073] The structure and basis of the organic EL display device according to this embodiment Figure 6 The structure of the organic EL display device of the first embodiment shown is the same. The first extension part 38c and the second extension part 38d are formed only on at least one end of each unit subwall of the subwall 28b under the condition of forming a certain angle with the anode columns DL1 and DL2.

[0074] Here, the first extension portion 38c is longer than the second extension portion 38d. In addition, the first extension portion 38c of each unit secondary wall is adjacent to the second extension portion 38d and parallel to the first extension portion 38c of the adjacent unit secondary wall.

[0075] In addition, the second extension portion 38d of each unit secondary ...

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Abstract

The invention discloses an electroluminescent display device capable of reducing power consumption. The electroluminescent display device according to the present invention comprises: a plurality of anode columns arranged on a substrate, each anode column respectively comprising a first anode and a second anode, wherein the first anode and the second anode are arranged adjacent to each other, so that each light-emitting area of ​​the first anode and the second anode is arranged alternately along each anode column; a plurality of main walls, substantially perpendicular to the plurality of anode columns; a plurality of cathodes, wherein the cathode is arranged between the two main walls to contact the first the anode and the respective light emitting regions of the second anode; and a plurality of secondary walls located between two adjacent primary walls. The plurality of secondary walls respectively extend along the length of a pixel or a sub-pixel, and form connection portions between each group of adjacent pixels on a row of the device. On the device according to the present invention, the plurality of secondary walls respectively include extensions formed on at least one end thereof, and each extension is respectively configured so as to prevent interference between adjacent pixels.

Description

technical field [0001] The invention relates to an electroluminescence display device, and in particular to an electroluminescence display device capable of reducing power consumption. Background technique [0002] Recently, in order to overcome disadvantages of a cathode ray tube (CRT), various flat panel display devices that can reduce the weight and size of the CRT have been developed. As flat panel display devices, liquid crystal display (LCD) devices, field emission display (FED) devices, plasma display panels (PDP), and organic electroluminescent display (EL) devices have been developed and used. [0003] The plasma display panel is advantageous in that its structure and manufacturing process are simple, so it is most preferably used for a large-sized display surface, but it has disadvantages in that luminous efficiency and luminance are low, and consumes a large amount of power. [0004] Liquid crystal display devices are mainly used as display devices for laptop com...

Claims

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Application Information

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IPC IPC(8): H01L27/32H05B33/12
CPCH10K59/88H10K59/173H10K59/1795H10K59/179H10K71/00
Inventor 金学洙裵孝大
Owner LG DISPLAY CO LTD