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A wide and narrow viewing angle switching device and switching method

A technology for switching devices and viewing angles, which is applied in the field of wide-narrow viewing angle switching devices, can solve the problem of inability to implement forced insertion of black images, and achieve the effect of improving the visual viewing effect.

Active Publication Date: 2020-09-01
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with this solution is that an MCU (Micro Controller Unit, Micro Control Unit) needs to be added to the timing controller, and some functions need to be sacrificed to realize it, for example: ACC (Accurate Color Calibration, accurate color correction) function; In addition, after the timing controller enters the PSR (panelSelf Refresh, self-refresh signal), it cannot realize the forced insertion of a black screen, nor can it solve the above problems

Method used

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  • A wide and narrow viewing angle switching device and switching method
  • A wide and narrow viewing angle switching device and switching method
  • A wide and narrow viewing angle switching device and switching method

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no. 1 example

[0032] figure 1 It is a schematic structural diagram of a wide and narrow viewing angle switching device according to an embodiment of the present invention; figure 1 As shown, the first embodiment of the present invention provides a wide and narrow viewing angle switching device, which includes a display control module 11 and a display driving module 13 connected through a connector 12 .

[0033] In this embodiment, the connector is an eDP (Embedded Display Port, embedded display interface signal) connector.

[0034] The display control module 11 includes a control unit 110 , a transmitter 111 and a wide and narrow viewing angle signal switching module 112 ; the display driving module 13 includes a timing controller 131 and a wide and narrow viewing angle driving module 132 .

[0035] The control unit 110 is configured to control the timing controller 131 to exit the PSR through the transmitter 111 if the signal of the wide and narrow viewing angle switching button 10 is det...

no. 2 example

[0050] figure 2 It is a schematic flow chart of the wide and narrow viewing angle switching method according to the embodiment of the present invention, refer to figure 2 , the wide and narrow viewing angle switching method includes the steps:

[0051] S21. When the self-refresh signal PSR is turned on, if the signal of the wide-narrow viewing angle switching button is detected, the transmitter controls the timing controller to exit the PSR;

[0052] S22. After the timing controller exits the PSR, control the wide and narrow viewing angle signal switching module to switch the wide and narrow viewing angle signal, and send the switched wide and narrow viewing angle signal to the wide and narrow viewing angle driving module, so that the wide and narrow viewing angle driving module according to the switched Wide and narrow viewing angle signals, driving the display panel for wide viewing angle display or narrow viewing angle display;

[0053] S23. After the wide and narrow vi...

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Abstract

The invention discloses a wide visual angle and narrow visual angle switching device and a wide visual angle and narrow visual angle switching method. The wide visual angle and narrow visual angle switching device comprises a display control module and a display drive module which are connected through a connector, wherein the display control module comprises a control unit, a transmitter and a wide visual angle and narrow visual angle signal switching module; the display drive module comprises a time schedule controller and a wide visual angle and narrow visual angle drive module. For the wide visual angle and narrow visual angle switching device and the wide visual angle and narrow visual angle switching method disclosed by the invention, the control unit controls a self-refresh signal and a wide visual angle and narrow visual angle signal, on one hand, the problem of residual charge or ghost existing when the narrow visual angle is switched to the wide visual angle is solved, a micro control unit does not need to be increased in the time schedule controller, and the sacrifice of partial functions is not needed; on the other hand, during switching of the wide visual angle and thenarrow visual angle, a system is in the state of quitting the PSR, so that the problem that no black picture insertion is available during wide visual angle and narrow visual angle switching under the PSR condition is avoided, and finally, the visual watching effect of a user is promoted.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a wide and narrow viewing angle switching device and switching method. Background technique [0002] Due to the advantages of thinness, energy saving, and no radiation, liquid crystal display devices are currently widely used in electronic equipment such as televisions, personal computers, tablet computers, PDAs (Personal Digital Assistants, personal digital assistants), mobile phones, and digital cameras. [0003] Liquid crystal display devices have different working modes, such as wide and narrow viewing angle modes. When the liquid crystal display device is switched from a narrow viewing angle to a wide viewing angle, the charge in the display panel needs to be switched, and the user may find charge residue or afterimage under a brighter picture (such as a white picture), which will make the user's visual viewing effect poor . [0004] In view of the above problems, the exi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36
Inventor 刘冲闫小能杨冰
Owner KUSN INFOVISION OPTOELECTRONICS
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