Display device, humidity detection method for display panel, and gamma curve correction method

A technology for display panels and display devices, applied in nonlinear optics, static indicators, instruments, etc., can solve the problems of phase modulation curve shift, poor display quality, image noise, etc., and achieve the effect of good image quality

Active Publication Date: 2020-10-13
HIMAX DISPLAY INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the phase modulation curve (i.e., the characteristic curve of voltage versus phase) of the liquid crystal on silicon panel is easily affected by environmental conditions such as temperature and humidity to produce shifts.
Especially when the liquid crystal on silicon panel is operated at a higher temperature or humidity, the display screen of the liquid crystal on silicon panel will produce image noise due to the shift of the phase modulation curve, which will lead to poor display quality

Method used

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  • Display device, humidity detection method for display panel, and gamma curve correction method
  • Display device, humidity detection method for display panel, and gamma curve correction method
  • Display device, humidity detection method for display panel, and gamma curve correction method

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Embodiment Construction

[0056] The term "coupled (or connected)" as used throughout the specification of this application, including the scope of the claims, may refer to any direct or indirect connection means. For example, if it is described that a first device is coupled (or connected) to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can also be connected through other devices. or some connection means to indirectly connect to the second device. In addition, wherever possible, elements / components / steps with the same reference numbers are used in the drawings and embodiments to represent the same or similar parts. Elements / components / steps using the same symbols or using the same terms in different embodiments can refer to related descriptions.

[0057] Figure 1A is a schematic diagram of a circuit block of a display device according to an embodiment of the present invention. like Figure 1A As shown, the displ...

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Abstract

The invention discloses a display device, a humidity detection method for a display panel, and a gamma curve correction method. The humidity detection method comprises the following steps: displayinga test pattern by a display panel; projecting incident light to the test pattern of the display panel by the light source to generate diffracted light; and detecting the diffracted light by a light detector to obtain humidity information of the display panel. Humidity information of the display panel can be used for adjusting gamma setting of the display panel.

Description

technical field [0001] The invention relates to a humidity detection method, in particular to a humidity detection method of a display panel and a gamma curve correction method. Background technique [0002] With the development of display technology, Liquid Crystal on Silicon (LCoS) panels have been equipped with high-resolution display capabilities, so LCD-on-Silicon panels have gradually become the mainstream trend in automotive head-up display (Automotive Head-up Display) design . The liquid crystal on silicon panel can modulate the phase of the incident light through simple voltage control, thereby producing a three-dimensional holographic image. The stereoscopic holographic image can be used as a display image of a vehicle instrument panel. However, the phase modulation curve (that is, the characteristic curve of voltage vs. phase) of the liquid crystal on silicon panel is easily affected by environmental conditions such as temperature and humidity to produce a shift...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G09G3/36
CPCG02F1/1309G09G3/36G09G2320/0673
Inventor 郑琇尹吴炳昇范姜冠旭
Owner HIMAX DISPLAY INC
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