LIGHT-EMITTING MODULES AND LIGHTING MODULES

• US 20150370130A1
• Filed: 10/03/2014
• Published: 12/24/2015
• Est. Priority Date: 06/19/2014
• Status: Active Grant

• Current Assignee: Kun Yuan Technology Co., Ltd.
• Original Assignee: Kun Yuan Technology Co., Ltd.
• Inventors: LIN, Kun-Chuan
• Granted Patent: US 9,304,354 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/13306 Circuit arrangements or driving methods for the control of single liquid crystal cells G02F1/132, G02F1/133382 take precedence
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133612 Electrical details
• CPC Class Codes: G02F 1/1337 Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G09F 19/14 displaying different signs depending upon the view-point of the observer
• CPC Class Codes: G09F 19/226 External wall display means; Facade advertising means
• CPC Class Codes: G09F 19/227 on windows
• CPC Class Codes: G09F 9/35 being liquid crystals G09F9/302 takes precedence; liquid crystal materials C09K19/00; liquid crystal panels comprising a number of electrodes in a single cell per se G02F1/13

Abstract

A light-emitting module includes: (a) a liquid-crystal module containing a pair of transparent substrates and a liquid-crystal layer disposed between the pair of transparent substrates; (b) a first light-emitting diode (LED) component disposed on a first side of the liquid-crystal module; (c) a first transparent cover plate over the first LED component such that the first LED component is sandwiched between the liquid-crystal module and the first transparent cover plate; and (d) a control circuit configured to control an on/off frequency of the liquid-crystal module and a light-emitting frequency of the first LED component in such a manner that the light emitted from the first LED component is synchronously shielded by the liquid-crystal module, wherein the light is emitted from a side opposite to the liquid-crystal module.

Claims

1. A light-emitting module, comprising:

a liquid-crystal module comprising;

a pair of transparent substrates; and

a liquid-crystal layer disposed between the pair of transparent substrates;

a first light-emitting diode (LED) component disposed on a first side of the liquid-crystal module;

a first transparent cover plate over the first LED component such that the first LED component is sandwiched between the liquid-crystal module and the first transparent cover plate; and

a control circuit configured to control an on/off frequency of the liquid-crystal module and a first light-emitting frequency of the first LED component in such a manner that the light emitted from the first LED component is synchronously shielded by the liquid-crystal module, wherein the light is emitted from a side opposite to the liquid-crystal module.

2. The light-emitting module as claimed in claim 1, further comprising:

a second LED component disposed on a second side opposite to the first side of the liquid-crystal module; and

a second transparent cover plate over the second LED component such that the second LED component is sandwiched between the liquid-crystal module and the second transparent cover plate; and

wherein the control circuit is further configured to control a second light-emitting frequency of the second LED component in such a manner that the light emitted from the first LED component and the second LED component are synchronously shielded by the liquid-crystal module.

3. The light-emitting module as claimed in claim 2, wherein the first LED component and the second LED component independently show the same pattern or different patterns.

4. The light-emitting module as claimed in claim 2, wherein the light emitted from the first LED component and the second LED component are each emitted from a side opposite to the liquid-crystal module.

5. The light-emitting module as claimed in claim 1, wherein each of the on/off frequency and the first light-emitting frequency is at least 16 Hz.

6. The light-emitting module as claimed in claim 1, further comprising:

a set of electrode layers between the pair of transparent substrates and the liquid-crystal layer; and

a set of alignment layer between the set of electrode layers and the liquid-crystal layer.

7. The light-emitting module as claimed in claim 1, further comprising:

a set of polarizers on an outer surface of the pair of transparent substrates.

8. The light-emitting module as claimed in claim 1, wherein the LED components consist of unpackaged light emitting diode chips.

9. The light-emitting module as claimed in claim 2, wherein the LED components consist of unpackaged light emitting diode chips.

10. The light-emitting module as claimed in claim 1, further comprising:

at least a wiring layer between the pair of transparent substrates and the first LED component or disposed between the pair of transparent substrates and the second LED component; and

at least an adhesive layer between the pair of transparent substrates and the first LED component or disposed between the pair of transparent substrates and the second LED component to affix the light emitting diode chips on the transparent substrate.

11. The light-emitting module as claimed in claim 10, further comprising:

a fluorescent powder doped in the adhesive layer.

12. A lighting module, comprising:

a transparent liquid-crystal module comprising;

a pair of transparent substrates; and

a liquid-crystal layer disposed between the pair of transparent substrates;

a first light-emitting diode (LED) lighting element disposed on a first side of the transparent liquid-crystal module; and

a control circuit configured to control an on/off frequency of the transparent liquid-crystal module and a first light-emitting frequency of the first LED lighting component in such a manner that the light emitted from the first LED lighting component is synchronously shielded by the transparent liquid-crystal module, and wherein the transparent liquid-crystal module and the first LED lighting component are separated from each other.

13. The lighting module as claimed in claim 12, further comprising:

a second LED lighting component disposed on a second side opposite to the first side of the transparent liquid-crystal module; and

wherein the transparent liquid-crystal module and the second LED lighting component are separated from each other; and

wherein the control circuit further is configured to control a second light-emitting frequency of the second LED lighting component in such a manner that the light emitted from the first LED lighting component and the second LED lighting component are synchronously shielded by the transparent liquid-crystal module.

14. The lighting module as claimed in claim 13, further comprising:

a partition on the second side such that the second LED lighting component is disposed between the partition and the transparent liquid-crystal module.

15. The lighting module as claimed in claim 13, wherein each of the on/off frequency, the first light-emitting frequency and the second light-emitting frequency is at least 16 Hz.

16. The lighting module as claimed in claim 12, further comprising:

a set of electrode layers between the pair of transparent substrates and the liquid-crystal layer;

a set of alignment layer between the set of electrode layers and the liquid-crystal layer.

17. The lighting module as claimed in claim 12, further comprising:

a set of polarizers on an outer surface of the pair of transparent substrates.

18. The lighting module as claimed in claim 12, wherein the transparent liquid-crystal module is used as or attached to a window or outer wall.