Electroluminescence panel display apparatus and driving method thereof

• US 7,129,913 B2
• Filed: 07/25/2002
• Issued: 10/31/2006
• Est. Priority Date: 09/21/2001
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Moon, Seong Hak
• Primary Examiner(s): Shankar, Vijay
• Application Number:
  US10/201,787
• Publication Number:
  US 20030058198A1
• Time in Patent Office: 1,559 Days
• Field of Search: 345 76- 98, 313/506, 349/42, 349/74, 349139-152
• 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 display comprising:

a first substrate on which cells comprising blue fluorescent material are formed in a matrix pattern;

a second substrate overlapped with the first substrate, wherein cells comprising red and green fluorescent materials are formed in a matrix pattern on the second substrate;

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

a first scan line electrically connected to the red and green fluorescent materials in a direction perpendicular to the first data line;

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

a second scan line electrically connected to the blue fluorescent material in a direction perpendicular to 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.

2. The panel display of claim 1, wherein the cells comprising the blue fluorescent material and the cells comprising the red and green fluorescent materials are mutually overlapped to form one cell.

3. The panel display of claim 1, wherein a predetermined portion of the blue fluorescent material is overlapped by the red and green fluorescent material.

4. The panel display of claim 1, wherein a size of the blue fluorescent material is greater than or equal to a combined size of the red and green fluorescent materials.

5. The panel display of claim 1, 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 different than the polarity of the scan pulse.

6. A driving method of an EL panel comprising a first substrate having cells comprising a blue inorganic material formed thereon;

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

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

a first scan line formed to overlap the red and green inorganic materials in a direction perpendicular to the first data line;

a second data line formed on the second substrate so as to overlap the blue inorganic material, and a second scan line formed to overlap the blue inorganic material in a direction perpendicular to the second data line, the driving method comprising;

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.

7. The method of claim 6, 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 different than the polarity of the scan pulse.

8. An electroluminescence (EL) panel, comprising:

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

a second substrate having a plurality of blue inorganic materials and positioned so that the plurality of blue inorganic materials and the plurality of red and green inorganic materials overlap each other;

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

a first scan line formed to overlap the red and green inorganic materials in a direction perpendicular to the first data line;

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

a second scan line formed to overlap the blue inorganic material in a direction perpendicular to the second data line.

9. The panel of claim 8, 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.

10. The panel of claim 8, further comprising:

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

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

11. The panel of claim 10, further comprising:

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

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

12. The panel of claim 11, 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 different than the polarity of the scan pulse.

13. An electroluminescence (EL) panel, comprising:

a first substrate comprising cells of blue fluorescent material formed in a matrix pattern;

a second substrate overlapped with the first substrate and comprising cells of red and green fluorescent materials formed in a matrix pattern;

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

a first scan line formed to overlap the red and green fluorescent materials in a direction perpendicular to the first data line;

a second data line formed on a second substrate so as to overlap blue fluorescent material; and

a second scan line formed to overlap the blue fluorescent material in a direction perpendicular to the second data line.

14. The panel display of claim 13, 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.

15. The panel display of claim 14, further comprising:

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

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

16. The panel display of claim 15, further comprising:

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

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

17. The panel display of claim 16, 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 different than the polarity of the scan pulse.