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A grayscale forming method for an electrowetting display

An electrowetting display and grayscale technology, applied to static indicators, instruments, etc., to achieve the effect of reducing flicker

Active Publication Date: 2017-02-15
SOUTH CHINA NORMAL UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The grayscale formation method of electronic paper usually adopts the pulse width modulation method to form grayscale, and the driving voltage with different duty ratios forms different grayscales. Gives a flicker to the eye

Method used

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  • A grayscale forming method for an electrowetting display
  • A grayscale forming method for an electrowetting display
  • A grayscale forming method for an electrowetting display

Examples

Experimental program
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Embodiment 1

[0026] Embodiment 1 Embodiment 1 of the present invention provides a method for forming gray scales of an electrowetting display. The pulse width modulation method is used to form gray scales, and driving voltages with different duty ratios form different gray scales. Include at least two pulses and two time intervals. The cycle is T, and the driving voltage includes 2 time intervals with a duration of T / 4 and 2 pulses with a duration of T / 4 in one cycle.

[0027] Such as figure 1 The drive voltage shown includes 2 time intervals of duration T / 4 and 2 pulses of duration T / 4 in one cycle, as in figure 2 The duty cycle of the driving voltage shown to include 1 time interval of duration T / 2 and 1 pulse of duration T / 2 in one cycle is the same, but as figure 1 The drive voltage frequency shown is as figure 2 2 times the drive voltage frequency shown.

[0028] This embodiment compares to a driving voltage with the same duty ratio but only one time interval by using a driving ...

Embodiment 2

[0030] Embodiment 2 of the present invention provides a method for forming gray scales of an electrowetting display. The pulse width modulation method is used to form gray scales. Driving voltages with different duty ratios form different gray scales. The driving voltage includes at least two pulses in one cycle. and two time intervals. The cycle is T, and the driving voltage includes 4 time intervals with a duration of T / 8 and 4 pulses with a duration of T / 8 in one cycle.

[0031] Such as image 3 As shown, one cycle includes 4 time intervals with a duration of T / 8 and 4 pulses with a duration of T / 8 as the driving voltage. Such as image 3 as shown and as figure 2 The drive voltage duty cycle is the same as shown, but as image 3 The drive voltage frequency shown is as figure 2 4 times the drive voltage frequency shown.

[0032] This embodiment compares to a driving voltage with the same duty ratio but only one time interval by using a driving voltage that includes 4...

Embodiment 3

[0034] Embodiment 3 of the present invention provides a method for forming gray scales of an electrowetting display. The pulse width modulation method is used to form gray scales. Driving voltages with different duty ratios form different gray scales. The driving voltage includes at least two pulses in one cycle. and two time intervals. The cycle is T, and one cycle of the driving voltage includes 2 time intervals with a duration of T / 8 and 2 pulses with a duration of 3T / 8.

[0035] Such as Figure 4 The driving voltage shown in one cycle includes 2 time intervals with a duration of T / 8 and 2 pulses with a duration of 3T / 8, as Figure 5 The duty cycle of the driving voltage shown that there is 1 time interval of duration T / 4 and 1 pulse of duration 3T / 4 in one cycle is the same, but as Figure 4 The drive voltage frequency shown is as Figure 5 2 times the drive voltage frequency shown.

[0036] This embodiment compares to the driving voltage with the same duty ratio but o...

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Abstract

The invention discloses a grayscale forming method of an electrowetting display, belonging to the field of electrowetting displays. The method includes: using a pulse width modulation method to form gray scales, driving voltages with different duty ratios to form different gray scales, and the driving voltage includes at least two pulses and two time intervals in one cycle. The invention reduces the flickering of the electrowetting display through the gray scale forming method of the electrowetting display.

Description

technical field [0001] The invention relates to the field of electrowetting displays, in particular to a gray scale forming method of an electrowetting display. Background technique [0002] The use of electronic paper is quite extensive. The first generation product is electrophoretic display, which is mainly used for reading and cannot play video. The second generation product includes the display screen of handheld devices such as mobile communication and PDA. The next generation product planned to be developed is positioned in color video reflection Formed displays form applications related to the printing industry, such as portable e-books, e-newspapers, etc., which can provide reading functions and usage properties similar to traditional books. Electrowetting displays are a new generation of electronic paper that can play videos. [0003] The grayscale formation method of electronic paper usually adopts the pulse width modulation method to form grayscale, and the drivi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
Inventor 周莹王利易子川唐彪周亚琴周国富
Owner SOUTH CHINA NORMAL UNIVERSITY