Liquid crystal display device

• US 20050264515A1
• Filed: 09/29/2004
• Published: 12/01/2005
• Est. Priority Date: 11/28/2003
• Status: Abandoned Application

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Inventors: Oh, Eui Yeol, Kim, Gi Bin
• Application Number:
  US10/955,497
• Publication Number:
  US 20050264515A1
• Time in Patent Office: Days
• US Class Current: 345/102
• CPC Class Codes: G02F 1/1336 Illuminating devices
• CPC Class Codes: G02F 1/133612 Electrical details
• CPC Class Codes: G02F 1/133628 with cooling means
• CPC Class Codes: G02F 2203/60 Temperature independent
• CPC Class Codes: G09G 2300/046 with an emissive area and a light-modulating area combined in one pixel

Abstract

A liquid crystal display includes inverters, a cover, a liquid crystal display panel, and a backlight. The inverters mechanically couple a cover which supports a liquid crystal display panel and a backlight. Each of the inverters is spaced apart from a substantial heat generating electrode region. The inverters are configured to supply power to the backlight. One method of assembling a liquid crystal display includes positioning the inverters; disposing a reflecting sheet below the inverters; electrically coupling the inverters to a light source; mechanically coupling the inverters to the cover; and disposing a plurality of electrodes above the inverters such that the inverters and portions of the electrodes do not lie in a common vertical plane.

Claims

1. A liquid crystal display comprising:

a plurality of inverters coupled to a bottom cover which supports a liquid crystal display panel and a backlight;

wherein the inverters are spaced apart from an electrode region generating heat and the inverters are configured to supply power to the backlight.

2. The liquid crystal display of claim 1 wherein the electrode region comprises a plurality of electrodes.

3. The liquid crystal display of claim 1 wherein a plurality of vertical planes divide the inverters from the heat generating electrode regions and each inverter and heat generating electrode region reside in separate vertical planes.

4. The liquid crystal display of claim 1 wherein a plane of symmetry separates a first inverter and a first electrode region from a second inverter and a second electrode region.

5. The liquid crystal display of claim 4 wherein the first inverter, the second inverter, the first electrode, and the second electrode are configured to dissipate heat through conduction.

6. The liquid crystal display of claim 4 wherein the first inverter, the second inverter, the first electrode, and the second electrode are configured to dissipate heat through convection.

7. The liquid crystal display of claim 4 wherein the first inverter, the second inverter, the first electrode, and the second electrode are configured to dissipate heat through radiation.

8. The liquid crystal display of claim 1 wherein the inverters convert a direct current to an alternating current.

9. A liquid crystal display comprising:

a liquid crystal display panel;

a medium disposed below the liquid crystal display to spread light;

an electroluminescent member disposed below the medium;

a plurality of inverters disposed in a first vertical plane and a second vertical plane; and

a plurality of electrode regions generating heat disposed in a third vertical plane and a fourth vertical plane;

wherein the first vertical plane, second vertical plane, third vertical plane, and fourth vertical plane comprise separate vertical planes.

10. The liquid crystal display of claim 9 wherein the electrode regions comprises a plurality of electrodes.

11. The liquid crystal display of claim 9 wherein the medium comprises an optical member.

12. The liquid crystal display of claim 11 wherein the optical member comprises a diffusion plate and a diffusion sheet.

13. The liquid crystal display of claim 9 wherein a plane of symmetry separates the first and the third vertical planes from a second and the fourth vertical planes.

14. The liquid crystal display of claim 9 wherein the inverters and the electrodes are configured to dissipate heat through radiation.

15. The liquid crystal display of claim 9 wherein the inverters and the electrodes are configured to dissipate heat through conduction.

16. The liquid crystal display of claim 9 wherein the inverters and the electrodes are configured to dissipate heat through convection.

17. The liquid crystal display of claim 9 wherein the first vertical plane, the second vertical plane, the third vertical plane, and the fourth vertical plane comprise exclusive vertical planes.

18. A liquid crystal display comprising:

a liquid crystal display panel;

a medium disposed below the liquid crystal display panel that spreads light;

a light source disposed below the medium;

means for converting electrical signals from one form to another form disposed in a vertical plane; and

a heat generating electrode region disposed in a separate vertical plane;

wherein the plane that contain the means for converting electrical signals lies in an exclusive vertical plane from the vertical plane that contains the heat generating electrode region.

19. The liquid crystal display of claim 18 wherein the means for converting electrical signals comprises a plurality of means for converting electrical signals.

20. The liquid crystal display of claim 18 wherein the means for converting electrical signals is mechanically coupled to a back cover and electrically coupled to a light source.

21. A method of assembly a display comprising:

positioning a plurality of inverters in a plurality of vertical planes; and

positioning a plurality of electrodes in separate vertical planes from the vertical planes containing one or more of the plurality of inverters.

22. The method of assembling a display of claim 21 wherein the act of positioning the plurality of inverters comprises positioning the inverters on opposite sides of a surface that is divided by a plane of symmetry.

23. The method of assembling a display of claim 22 wherein the inverters are electrically coupled to a plurality of light sources.