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Transflective display device and drive method thereof

A technology of a display device and a driving method, which is applied to static indicators, instruments, etc., can solve problems such as inability to display darkness, and achieve the effect of improving display quality

Active Publication Date: 2013-04-03
HIMAX TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the low grayscale corresponding to the light transmittance below T0' cannot distinguishably show the expected darkness

Method used

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  • Transflective display device and drive method thereof
  • Transflective display device and drive method thereof
  • Transflective display device and drive method thereof

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Embodiment Construction

[0043] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention, wherein like reference numerals designate like or similar components.

[0044] In an embodiment of the present invention, the transflective display device includes a display panel and a backlight module as a light source, wherein the backlight module can emit light to the display panel. Figure 3A These are two voltage-transmittance curves VT1 and VT2 applied to the display device according to the embodiment of the present invention. The display device provides two V-T curves VT1 and VT2 in different display modes. Each V-T curve is determined by a gamma voltage group, for example, the gamma voltages V1~Vn in the first V-T curve VT1, and the gamma voltages V1'~Vn' in the second V-T curve VT2. This gamma voltage group will provide Digital-to-analog converter to source driver.

[0045] In ord...

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PUM

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Abstract

The invention provides a transflective display device and drive method thereof. In the drive method, a plurality of voltage-light transmittance curves are provided. The display mode can be decided by detecting the environment lighting intensity of the display device; wherein the display mode is a transflective mode or a reflective mode. Moreover, one voltage-light transmittance curve is selected to drive the display device according to the display mode and the environment lighting intensity. Therefore, the display quality of the display device can be improved by driving the display device through a proper voltage-light transmittance curve.

Description

technical field [0001] The present invention relates to a display device, and in particular to a transreflective display device and a driving method thereof. Background technique [0002] Today's electronic devices, such as mobile phones, personal digital assistants (PDAs) and notebook computers, usually have a display device. These display devices require thin, light and small designs to save the volume and cost of electronic devices. In order to meet the demand, flat panel displays (flat panel displays, FPDs) are gradually replacing cathode ray tube displays and flourishing. [0003] The display panel of the flat panel display is divided into a transmissive display panel, a reflective display panel and a transflective display panel. A transmissive display panel uses a backlight module placed behind it as a light source. Reflective display panels use ambient light or a light source located in front of the panel. The transflective display panel can use a backlight module...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/34
Inventor 吴炳昇卜令楷陈英烈
Owner HIMAX TECH LTD