Patent Application
20140354607
1. Technical Field
The present disclosure relates to a liquid crystal display.
2. Description of Related Art
Liquid crystal displays use copper wires to transmit electrical signals. When the copper wires transmit signals, a number of electromagnetic waves which could pick up interference from other surrounding electromagnetic waves are generated. Thus the quality of the electrical signals is reduced.
Therefore, it is desirable to provide a liquid crystal display that can overcome or at least alleviate the above-mentioned limitations.
Many aspects of the embodiments should be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
The image processor 10 is used for converting a number of frames of image data into an image electrical signal. The image electrical signal may be a digital signal or an analog signal.
The first optical-electrical converter 20 is used for receiving the image electrical signal, and converting the image electrical signal into an image optical signal.
The optical signal transmission element 30 is used for transmitting the image optical signal to the second optical-electrical converter 40. The optical signal transmission element 30 can include an optical fiber.
The second optical-electrical converter 40 is used for receiving the image optical signal, and converting the image optical signal to the image electrical signal.
The time controlling unit 50 is electrically connected to the source driving unit 60 and the gate driving unit 70, and is used for receiving the image electrical signal, transmitting the image electrical signal to the source driving units 60, and outputting a controlling electrical signal to the gate driving unit 70. Thus the source driving unit 60 and the gate driving unit 70 cooperatively display the frames of image data on the display panel 80 sequentially. The time controlling unit 50 can include a time controller, and the gate driving unit can include at least one gate driver.
The controlling circuit board 90 includes a first portion 91 and a second portion 92. The source driving units 60, the time controlling unit 50, and the second optical-electrical converter 40 are fixed to the first portion 91. The first optical-electrical converter 20 and the image processor 10 are fixed to the second portion 92.
The difference between the liquid crystal display 200 and the liquid crystal display 100 is that the time controlling unit 250 is integrated with the image processor 210. The time controlling unit 250 adds a controlling electrical signal to the image electrical signal from the image processor 210 to obtain a composite electrical signal. The first optical-electrical converter 220 converts the composite electrical signal to a first composite optical signal. In this embodiment, the image electrical signal is a current signal, and the controlling signal is a voltage signal.
The number of the second optical-electrical converters 240 is substantially equal to the sum of the number of the source driving units 260 and the number of the gate driving unit 270. One of the second optical-electrical converters 240 corresponds to the gate driving unit 270, and is integrated with the gate driving unit 270. The other second optical-electrical converters 240 correspond to the source driving units 260 respectively, and are integrated with the corresponding source driving units 260.
The optical signal transmission element 230 includes a first optical fiber 231, a light splitter 233, and a number of second optical fibers 232. The first optical fiber 231 transmits the first composite optical signal to the light splitter 233. The light splitter 233 converts the first composite optical signal to a number of same second composite optical signals. The second optical fibers 232 transmit the second composite optical signals to the second optical-electrical converters 240 respectively. Each of the second optical-electrical converters 240 converts the corresponding second composite optical signal to a second composite electrical signal. The source driving units 260 and the gate unit 270 receive the corresponding second composite electrical signals, the source driving units 260 and the gate driving unit 270 cooperatively display the frames of image data on the display panel 280 sequentially.
The controlling circuit board 290 includes a first portion 291 and a second portion 292. The first portion 291 fixes the second optical fibers 232, the light splitter 233, the second optical-electrical converters 240, and the source driving units 260. The second portion 292 fixes the first optical-electrical converter 220, the time controlling unit 250, and the image processor 210.
By employing the liquid crystal display of the present disclosure, the electrical signal is converted to the optical signal to be transmitted. During the transmitting process of the optical signal, no electromagnetic wave is generated, and the optical signal cannot be affected or just slightly affected by other electromagnetic waves. Therefore, the signal quality can be effectively improved.
It will be understood that the above particular embodiments are shown and described by way of illustration only. The principles and the features of the present disclosure may be employed in various and numerous embodiments thereof without departing from the scope of the disclosure as claimed. The above-described embodiments illustrate the scope of the disclosure but do not restrict the scope of the disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102119095 | May 2013 | TW | national |
