Electroluminescence panel display apparatus and driving method thereof

• US 20030058198A1
• Filed: 07/25/2002
• Published: 03/27/2003
• Est. Priority Date: 09/21/2001
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Moon, Seong Hak
• Granted Patent: US 7,129,913 B2
• Time in Patent Office: Days
• US Class Current: 345/76
• CPC Class Codes: G09G 3/30 using electroluminescent panels

Abstract

An electroluminescence (EL) panel display and its driving method are capable of easily setting a color balance and improving a luminance, for which an EL panel includes a first substrate having a plurality of red and green inorganic materials thereon and a second substrate having a plurality of blue inorganic materials overlapped with the red and green inorganic materials.

Claims

1. An electroluminescence (EL) panel comprising:

a first substrate having a plurality of red and green inorganic materials formed thereon; and

a second substrate having a plurality of blue inorganic materials overlapped with the plurality of red and green inorganic materials.

2. The panel of claim 1, wherein the inorganic materials are formed in a matrix form.

3. The panel of claim 1, wherein the red and green inorganic materials are overlapped with the blue inorganic material.

4. The panel of claim 1, wherein the inorganic material is a fluorescent material.

5. The panel of claim 1, wherein the red and green inorganic materials are overlapped with the blue inorganic material to form one pixel cell.

6. The panel of claim 1, wherein a size of the blue inorganic material is greater than or the same as a value obtained by adding the sizes of the red and green inorganic materials.

7. The panel of claim 1, further comprising:

a first data line formed on the first substrate so as to be overlapped with the red and green inorganic materials;

a first scan line formed to be overlapped with the red and green inorganic materials in a direction of being crossed with the first data line;

a second data line formed on the second substrate so as to be overlapped with the blue inorganic material; and

a second scan line formed to be overlapped with the blue inorganic material in a direction of being crossed with the second data line.

8. The panel of claim 7, further comprising:

a first data driving unit for supplying a data pulse to the first data line;

a second data driving unit for supplying the data pulse to the second data line; and

a scan driving unit for sequentially supplying a scan pulse in synchronization with the data pulse to the first and second scan lines.

9. The panel of claim 7, further comprising:

a first pad electrically connected with the first and second data lines; and

a second pad electrically connected with the first and second scan lines.

10. The panel of claim 9, further comprising:

a first data driving unit for supplying a data pulse to the first pad electrically connected with the first data line;

a second data driving unit for supplying the data pulse to the second pad electrically connected with the second data line; and

a scan driving unit for sequentially supplying a scan pulse synchronized with the data pulse to a third pad electrically connected with the first and second scan lines.

11. The panel of claim 10, wherein a polarity of the scan pulse supplied to the first and second scan lines is inverted for every frame and a polarity of the data pulse supplied to the first and second data lines is set different from the polarity of the scan pulse.

12. An electroluminescence (EL) panel display comprising:

a first substrate having a cell with a blue fluorescent material formed as a matrix type; and

a second substrate overlapped with the first substrate and having a cell with a red and green fluorescent materials formed as a matrix type.

13. The panel display of claim 12, wherein the cell with the blue fluorescent material and the cell with the red and green fluorescent material are mutually overlapped to form one cell.

14. The panel display of claim 12, wherein the blue fluorescent material is overlapped in its certain portion between the red and green fluorescent material

15. The panel display of claim 12, wherein the size of the blue fluorescent material is greater than or the same as a value obtained by adding the sizes of the red and green fluorescent materials.

16. The panel display of claim 12, further comprising:

a first data line formed on a first substrate so as to be overlapped with the red and green fluorescent materials;

a first scan line formed to be overlapped with the red and green fluorescent materials in a direction of being crossed with the first data line;

a second data line formed on a second substrate so as to be overlapped with a blue fluorescent material; and

a second scan line formed to be overlapped with the blue fluorescent material in a direction of being crossed with the second data line.

17. The panel display of claim 16, further comprising:

a first data driving unit for supplying a data pulse to the first data line;

a second data driving unit for supplying the data pulse to the second data line; and

a scan driving unit for sequentially supplying a scan pulse in synchronization with the data pulse to the first and second scan lines.

18. The panel display of claim 17, further comprising:

a first pad electrically connected with the first and second data lines; and

a second pad electrically connected with the first and second scan lines.

19. The panel display of claim 18, further comprising:

a first data driving unit for supplying a data pulse to the first pad electrically connected with the first data line;

a second data driving unit for supplying the data pulse to the second pad electrically connected with the second data line; and

a scan driving unit for sequentially supplying a scan pulse synchronized with the data pulse to a third pad electrically connected with the first and second scan lines.

20. The panel display of claim 19, wherein a polarity of the scan pulse supplied to the first and second scan lines is inverted for every frame and a polarity of the data pulse supplied to the first and second data lines is set different from the polarity of the scan pulse.

21. An electroluminescence (EL) panel display comprising:

a first substrate on which a cell having a blue fluorescent material is formed in a matrix form;

a second substrate overlapped with the first substrate, a cell having red and green fluorescent materials being formed in a matrix form on the second substrate;

a first data line formed on the first substrate so as to be electrically connected with the red and green fluorescent materials;

a first scan line electrically connected with the red and green fluorescent materials in a direction of being crossed with the first data line;

a second data line formed on the second substrate so as to be electrically connected with the blue fluorescent material;

a second scan line electrically connected with the blue fluorescent material in a direction of being crossed with the second data line;

a first data driving unit for supplying a data pulse to the first data line;

a second data driving unit for supplying the data pulse to the second data line; and

a scan driving unit for sequentially supplying a scan pulse in synchronization with the data pulse to the first and second scan lines.

22. The panel display of claim 21, wherein the cell having the blue fluorescent material and the cell having the red and green fluorescent materials are mutually overlapped to be formed as one cell.

23. The panel display of claim 21, wherein the blue fluorescent material is overlapped in its certain portion between the red and green fluorescent material.

24. The panel display of claim 21, wherein the size of the blue fluorescent material is greater than or the same as a value obtained by adding the sizes of the red and green fluorescent materials.

25. The panel display of claim 21, wherein a polarity of the scan pulse supplied to the first and second scan lines is inverted for every frame and a polarity of the data pulse supplied to the first and second data lines is set different from the polarity of the scan pulse.

26. A driving method of an EL panel consisting of a first substrate having a cell with a blue inorganic material formed thereon;

a second substrate overlapped with the first substrate and having a cell with red and green inorganic materials formed thereon;

a first data line formed on the first substrate so as to be overlapped with the red and green inorganic materials;

a first scan line formed to be overlapped with the red and green inorganic materials in a direction of being crossed with the first data line;

a second data line formed on the second substrate overlapped with the blue inorganic material, and a second scan line formed to be overlapped with the blue inorganic material in a direction of being crossed with the second data line, the driving method further comprising the steps of;

sequentially supplying the scan pulse to the first and second scan lines; and

supplying the data pulse to the first and second data lines so as to be synchronized with the scan pulse.

27. The method of claim 26, wherein a polarity of the scan pulse supplied to the first and second scan lines is inverted for every frame and a polarity of the data pulse supplied to the first and second data lines is set different from the polarity of the scan pulse.