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Wide and narrow viewing angle switching module and liquid crystal display device

A technology for switching modules and wide viewing angles, which is applied to static indicators, instruments, nonlinear optics, etc., and can solve problems such as the inability to take into account the quality requirements of wide viewing angles and narrow viewing angles at the same time.

Active Publication Date: 2020-06-05
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a wide-narrow viewing angle switching module and a liquid crystal display device, aiming at solving the problem that the existing technology cannot take both wide viewing angle and narrow viewing angle into account when the self-refresh signal (Panel Self Refresh, PSR) function is turned on to switch between wide and narrow viewing angles. The quality requirements of the viewing angle and the switching time of wide and narrow viewing angles

Method used

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  • Wide and narrow viewing angle switching module and liquid crystal display device
  • Wide and narrow viewing angle switching module and liquid crystal display device
  • Wide and narrow viewing angle switching module and liquid crystal display device

Examples

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no. 1 example

[0036] Such as figure 1 As shown, the first embodiment of the present invention provides a wide and narrow viewing angle switching module, which includes a connector, a signal processor, and a timing controller;

[0037] The display interface signal and the power signal are output to the timing controller through the connector;

[0038] In this embodiment, the display interface signals may include Low-Voltage Differential Signaling (LVDS), Transition Minimized Differential Signaling (TMDS), and Embedded DisplayPort (eDP).

[0039] A wide and narrow viewing angle (Hybrid Viewing Angle, HVA, also referred to as a hybrid viewing angle) control signal is output to the signal processor through the connector;

[0040] In this embodiment, the wide and narrow viewing angle control signal output through the connector is high level (H) or low level (L), and the wide and narrow viewing angle control signal output by default is low level (L).

[0041] The signal processor receives the wide and narr...

no. 2 example

[0075] The second embodiment of the present invention provides a liquid crystal display device, which includes a display panel and a wide and narrow viewing angle switching module;

[0076] Same as the first embodiment, the wide and narrow viewing angle switching module includes a connector, a signal processor, and a timing controller;

[0077] The display interface signal and the power signal are output to the timing controller through the connector;

[0078] In this embodiment, the display interface signals may include Low-Voltage Differential Signaling (LVDS), Transition Minimized Differential Signaling (TMDS), and Embedded DisplayPort (eDP).

[0079] A wide and narrow viewing angle (Hybrid Viewing Angle, HVA, also referred to as a hybrid viewing angle) control signal is output to the signal processor through the connector;

[0080] In this embodiment, the wide and narrow viewing angle control signal output through the connector is high level (H) or low level (L), and the wide and na...

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Abstract

The invention discloses a wide-narrow perspective switch module and a liquid crystal display device. The wide-narrow perspective switch module comprises a connecting device, a signal processor and a time sequence controller; a display interface signal and a power source signal are output to the time sequence controller through the connecting device; a wide-narrow perspective control signal is output to the signal processor through the connecting device; the signal processor receives the wide-narrow perspective control signal, a wide perspective code or a narrow perspective code is chosen according to the wide-narrow perspective control signal, and the chosen wide perspective code or narrow perspective code is output to the time sequence controller; the time sequence controller receives the wide perspective code or the narrow perspective code, and outputs the wide perspective code or the narrow perspective code to a display panel. According to the wide-narrow perspective switch module and the liquid crystal display device, the definition of the wide-narrow perspective and the wide-narrow perspective switch time are both taken into account, and the problem is avoided that after a PSR signal of the time sequence controller is opened, the power-off restart time and switch time of the time sequence controller are too long during wide-narrow perspective switch.

Description

Technical field [0001] The present invention relates to the technical field of liquid crystal display, in particular to a wide and narrow viewing angle switching module and a liquid crystal display device. Background technique [0002] Since liquid crystal display devices have many advantages such as lightness, thinness, energy saving, and no radiation, they are currently widely used in electronic devices such as televisions, personal computers, tablet computers, personal digital assistants (PDAs), mobile phones, and digital cameras. Liquid crystal display devices have different working modes, such as 6 / 8bit display or wide and narrow viewing angle display mode. For example, when the user wants to switch from the wide viewing angle mode to the narrow viewing angle mode when using the liquid crystal display device, or when the user wants to switch from the narrow viewing angle mode to the wide viewing angle mode when using the liquid crystal display device, they need to shut down ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G09G3/36
CPCG02F1/1323G09G3/3611
Inventor 何甲闫小能吴二平
Owner KUSN INFOVISION OPTOELECTRONICS
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