TWI449021B - Device with flicker pattern - Google Patents

Description

Device with flashing pattern

The present invention relates to a device having a scintillation pattern, and more particularly to a device having a scintillation pattern for a liquid crystal display.

Since the liquid crystal display requires an AC drive, its voltage has a positive polarity and a negative polarity. Theoretically, the amplitudes of the positive polarity and the negative polarity need to be equal. In reality, the characteristics of each panel are different, and some errors occur in the manufacturing process. Therefore, the common voltage offset causes the panel display quality to be poor. In order to correct such a common voltage offset, an additional step of common voltage adjustment is required during the process. For example, assuming that the positive polarity voltage is 10 volts, the common voltage is 5 volts. However, in practice, the positive voltage may be affected by many external factors and become 9 volts. At this time, the common voltage needs to be adjusted to 4.5 volts. Therefore, the test of the flicker pattern can assist the technician to adjust the optimal common voltage level of the panel.

Figure 1 is a schematic diagram of a conventional timing controller. The timing controller 1000 includes a multiplexer 1100, a polarity inversion input (POL) software switch 1200, a dot inversion POL generator 1300, a column inversion POL generator 1400, and a 2n+0 line inversion POL generator. 1500, 2n+1 line POL inversion generator 1600.

The engineer can set the output mode of the POL of the timing controller 1000. The panel uses the POL selection set by the EEPROM record and is downloaded to the POL software switch 1200 after booting. The production line staff selects the style of the corresponding panel from the host according to the panel specification, and transmits it via the timing controller 1000. Go to panel 1800. There is usually a host, such as a computer, that has a lot of flicker styles. After the technician sets the inversion pattern according to the panel specifications, the appropriate flicker pattern is selected from the host for testing. Due to the large number of flicker styles, technicians are prone to errors when selecting.

Therefore, it is necessary to provide an automated device with a flicker pattern and its automated method to reduce human error.

The present disclosure provides a device having a blinking pattern that includes a switching device and a timing controller. The switching device is configured to generate a uniform energy signal; the timing controller is coupled to the switching device, and outputs a blinking pattern to a panel according to the enabling signal. The timing controller has a plurality of blinking patterns and the timing controller determines the blinking pattern to be read according to the inverted state of the panel.

The disclosure further provides a method for operating a device having a blinking pattern, comprising: generating a switching signal by a switching device; receiving the switching signal by a timing controller; and determining, by the timing controller, whether the switching signal is consistent The signal can be selected by the timing controller according to an inversion pattern; the blinking pattern is output to a panel by the timing controller.

The present disclosure further provides a device having a blinking pattern that includes a switching device and a timing controller. The timing controller is coupled to the switch device to output a blinking pattern to a panel according to the enable signal. The timing controller includes one or more pattern generators, a polarity inversion input software switch, a second multiplexer, and a display switch. One or more style generators are used to generate the flicker pattern. The polarity reversal input software switch records the flicker pattern set. The second multiplexer selects a blinking pattern produced by one of the one or more pattern generators according to the set blinking pattern. The display switch determines the output of the blinking pattern from the second multiplexer based on the enable signal of the switching device.

The above-described device having a flicker pattern and its operation method can reduce the equipment cost by eliminating the need for an additional host for storing the flicker pattern, and reduce the time for adjusting the flicker pattern by automation and reduce the human error to make the overall production speed increase.

The above described objects, features and advantages of the present invention will become more apparent from the following description of the preferred embodiments of the invention. The device 100 having a blinking pattern includes a timing controller 110, a switching device 120, and a power supply 130.

The switching device 120 is coupled to the power supply 130. The power supply 130 provides the power required by the switching device 120 such that the switching device 120 can generate an enable signal. The enable signal is used to control whether the timing controller 110 initiates an output program of the blinking pattern.

The timing controller 110 is coupled to the panel 150 and the switching device 120 for outputting the horizontal control signal and the vertical control signal of the display panel 150, and outputting a blinking pattern to the display panel 150 according to the enabling signal.

In the present embodiment, the timing controller 110 has a plurality of blink patterns that are pre-embedded in the timing controller 110 according to possible specifications of the panel 150. That is to say, when the enable signal is recognized by the timing controller 110, the timing controller 110 according to the reverse mode of the panel 150 (preset in the timing controller, and different specifications of the panel will have different inverse Transition state) automatically selects one of the blinking styles to output to panel 150. When the enable timing signal is executed by the start timing controller 110, the timing controller 110 reads a memory (not shown), such as a memory type, such as an EEPROM, to record the inverted form of the panel 150, and The inverted version of panel 150 determines the blinking pattern.

In one embodiment, the blinking pattern includes two line inversion, dot inversion, row inversion, and column inversion, but is not limited thereto.

Figure 3 is a diagram of a method of operating a device having a scintillation pattern of the present invention. At step 202, a switching signal is generated by the switching device. In this embodiment, the switching device is coupled to the timing control signal, so the switching signal is received by the timing controller. Next, at step 204, the timing controller determines whether the switching signal is a consistent energy signal. In an embodiment, the switching signal may be a one-bit, two-bit or more bits. The enable signal is set according to the user's habits. For example, when the switching signal is a one-bit (or the switching device is one-bit), you can set 0 to enable and 1 to disable. Conversely, you can also set 1 to enable and 0 to disable.

Next, at step 206, the timing controller selects a blinking pattern based on the inverted pattern. In this embodiment, the flicker pattern is pre-embedded in the timing controller according to the possible specifications of the panel. These flicker styles may include two line inversion, color inversion, dot inversion, row inversion, and column inversion, but Not limited to this. Finally, at step 208, the timing controller outputs the selected blinking pattern to the panel.

Figure 4 is another embodiment of the apparatus of the present invention having a scintillation pattern. The flashing style device 300 includes a timing controller 310 and a switching device 350. The timing controller 310 includes a first multiplexer 330, a polarity inversion input (POL) software switch 320, a dot inversion POL generator 312, a column inversion POL generator 314, and a 2n+0 line inversion POL. Generator 316, 2n+1 line POL inversion generator 318, second multiplexer 340, dot inversion pattern generator 322, column inversion pattern generator 324, 2n+0 line inversion pattern generators 326, 2n The +1 line pattern inversion generator 328 and the display switch 360.

Switching device 350 can generate an enable signal. The enable signal is used to control whether the timing controller 110 initiates an output program of the blinking pattern. The POL software switch 320 records the set POL selection. The second multiplexer 340 automatically selects one of the styles of the pattern generators 322-328 based on the information from the POL software switch 320 and outputs the pattern. At this point, the enable signal of the switching device 350 is sent to the display switch 360 selection such that material from the second multiplexer 340 can be transmitted to the panel via the display switch 360. When the enable timing signal is executed by the startup timing controller 110, the timing controller 110 reads a memory (not shown), such as a memory type, such as an EEPROM, to record the inverted pattern of the panel 150, and The inverted version of the panel 150 loads the software switch, and the second multiplexer 340 selects the generator of the blinking pattern based on the information of the polarity inversion input software switch 320.

In the end, it is obvious to those skilled in the art that they can easily use the disclosed concept and the specific embodiments to change and design other structures that can perform the same purpose without departing from the invention and the scope of the claims.

100. . . Device with flashing pattern

110. . . Timing controller

120. . . Switching device

130. . . Power Supplier

150. . . panel

202, 204, 206, 208. . . Method step

Figure 1 is a schematic diagram of a conventional timing controller;

Figure 2 is a device having a scintillation pattern of the present invention;

Figure 3 is a diagram of a method of operating a device having a scintillation pattern of the present invention;

Figure 4 is another embodiment of the apparatus of the present invention having a scintillation pattern.

100‧‧‧Scattered device

110‧‧‧Sequence Controller

120‧‧‧Switching device

130‧‧‧Power supply

150‧‧‧ panel

Claims (5)

A device having a flicker pattern, comprising: a switching device for generating a uniform energy signal; and a timing controller coupled to the switching device, and outputting a blinking pattern to a panel according to the enabling signal, wherein The timing controller has a plurality of flicker patterns and determines a flicker pattern to be read according to a reverse type of the panel; the timing controller includes: one or more pattern generators for generating a flicker pattern; and a polarity inversion input a soft switch, recording a set blinking pattern; a second multiplexer; selecting a blinking pattern generated by one of the one or more pattern generators according to the set blinking pattern; a display switch, according to the enabling of the switching device The signal determines the output of the blinking pattern from the second multiplexer. A device having a flashing pattern as described in claim 1 further includes a power supply coupled to the switching device. A device having a flicker pattern as described in claim 1, wherein the timing controller further outputs a horizontal control signal and a vertical control signal of the display panel. A device having a flicker pattern as described in claim 1, wherein the plurality of flicker patterns include two line inversion, dot inversion, row inversion, and a column. Inversion (column inversion). The apparatus of claim 1, wherein the one or more style generators comprise a dot inversion pattern generator, a column inversion pattern generator, a 2n+0 line inversion pattern generator, and 2n+1 line Invert the style generator.