INVERTER DRIVING APPARATUS AND LIQUID CRYSTAL DISPLAY INCLUDING INVERTER DRIVING APPARATUS

• US 20080024422A1
• Filed: 08/03/2007
• Published: 01/31/2008
• Est. Priority Date: 09/05/2002
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KANG, Moon-Shik, MOON, Seung-Hwan, HA, Jin-Ho, KIM, Sang-Soo
• Granted Patent: US 7,812,810 B2
• Time in Patent Office: Days
• US Class Current: 345/102
• CPC Class Codes: G09G 3/342 using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
• CPC Class Codes: H05B 41/00 Circuit arrangements or apparatus for igniting or operating discharge lamps structurally associated with the discharge lamps H01J61/54, H01J61/56
• CPC Class Codes: H05B 41/282 with semiconductor devices H05B41/2806, H05B41/288, H05B41/295 take precedence
• CPC Class Codes: Y02B 20/00 Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Abstract

An inverter driving apparatus for driving a plurality of lamp units is provided. The inverter driving apparatus includes a plurality of inverter boards for generating driving signals for driving respective lamp units based on a control signal and a voltage signal. Each lamp unit includes at least one lamp, and the plurality of inverter boards are connected in series and include a first outer inverter board receiving the control signal and a second outer inverter board located opposite the first outer inverter board receiving the voltage signal. Each of the plurality of inverter boards transmits the control signal and/or the voltage signal to at least one of the plurality of inverter boards adjacent thereto.

Claims

1. An inverter driving apparatus for driving a plurality of lamp units, each lamp unit including at least one lamp, the apparatus comprising:

a plurality of inverter boards for generating driving signals for driving respective lamp units based on a control signal and a voltage signal,

wherein the plurality of inverter boards are connected in series and include a first outer inverter board receiving the control signal and a second outer inverter board located opposite the first outer inverter board receiving the voltage signal, and each of the plurality of inverter boards transmits the control signal or the voltage signal to at least one of the plurality of inverter boards adjacent thereto.

2. The apparatus of claim 1, wherein the at least one lamp of each lamp unit comprises a plurality of lamps connected in parallel.

3. The apparatus of claim 1, wherein the serial connection between the inverter boards is made along a direction perpendicular to a length direction of the at least one lamp.

4. The apparatus of claim 1, wherein each of the plurality of inverter boards comprises two connectors for signal transmission of the control signal and the voltage signal.

5. The apparatus of claim 4, wherein each connector has a plurality of pins, and the pins of adjacent two of the connectors are arranged in opposite order.

6. The apparatus of claim 5, wherein the two connectors of each of the plurality of inverter boards comprises a first connector for receiving the control signal and transmitting the voltage signal and a second connector for receiving the voltage signal and transmitting the control signal.

7. The apparatus of claim 5, wherein each of the plurality of inverter boards further comprises a plurality of electrical members electrically connected to the connectors for generating the driving signal.

8. The apparatus of claim 5, wherein each of the plurality of inverter boards further comprises a plurality of wires for interconnecting the two connectors included therein.

9. The apparatus of claim 4, wherein each connector has a plurality of pins, and the pins of the two connectors in each of the plurality of inverter boards are arranged in opposite order.

10. The apparatus of claim 9, wherein the pins of adjacent two connectors in adjacent two of the plurality of inverter boards are arranged in opposite order.

11. The apparatus of claim 1, wherein the first outer inverter board comprises a first connector for receiving the control signal and a second connector for receiving the voltage signal from and transmitting the control signal to another of the plurality of inverter boards.

12. The apparatus of claim 1, wherein the second outer inverter board comprises a first connector for receiving the voltage signal and a second connector for receiving the control signal from and transmitting the voltage signal to another of the plurality of inverter boards.

13. The apparatus of claim 1, wherein the plurality of inverter boards further comprises an intermediate inverter board connected to the first outer inverter board, the intermediate inverter board comprising a first connector for receiving the control signal from and transmitting the voltage signal to the first outer inverter board and a second connector for receiving the voltage signal from and transmitting the control signal to another of the plurality of inverter boards.

14. The apparatus of claim 1, wherein the plurality of inverter boards further comprises an intermediate inverter board connected to the second outer inverter board, the intermediate inverter board comprising a first connector for receiving the control signal from and transmitting the voltage signal to another of the plurality of inverter boards and a second connector for receiving the voltage signal from and transmitting the control signal to the second outer inverter board.

15-28. -28. (canceled)