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System for increasing number of valid display bits

A technology of bits and data, applied in the field of new systems that increase the number of effective display bits, and can solve problems such as difficult to achieve, high grayscale value accuracy, and noise easily generated by analog signals.

Pending Publication Date: 2019-12-13
南京芯视元电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Analog-driven displays use analog signals to represent the grayscale information of pixels, but analog signals are prone to noise, and it is difficult to achieve high grayscale value accuracy

Method used

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  • System for increasing number of valid display bits

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 is a micro-display chip driven by digital pixels based on LCOS (liquid crystal on silicon), the pixel resolution is 1920*1080, and the color rendering method is sequential color.

[0048] Such as figure 1 As shown, the micro-display chip system based on LCOS digital pixel drive mainly includes an address / data receiving and processing module 11, a row and column drive control logic module 12, a DAC module 13, a data latch / drive module 14, an address decoding module 15, and a pixel unit 16. The common electrode 17 and the module 20 for increasing the number of effective display digits.

[0049] The high-speed interface can use mipi interface or lvds interface, etc., and each time the row address and the data of the corresponding row are sent. The address / data receiving and processing module 11 receives one end connected to the high-speed interface, receives the address and data signals transmitted by the high-speed interface, the address / data receiving and p...

Embodiment 2

[0063] Embodiment 2 is a micro-display chip driven by OLED digital pixels. The resolution of the pixels is 1280*540*RGB.

[0064] Such as Figure 9 As shown, the micro-display chip system based on OLED digital pixel drive mainly includes an address / data receiving and processing module 21, a row and column drive control logic module 22, a DAC module 23, a data latch / drive module 24, an address decoding module 25, and a pixel unit 26. A common electrode 27 and a module 28 for increasing effective display digits.

[0065] The high-speed interface can use mipi interface or lvds interface, etc., and each time the row address and the data of the corresponding row are sent. The address / data receiving and processing module 21 receives one end connected to the high-speed interface, receives the address and data signals transmitted by the high-speed interface, and the address / data receiving and processing module 21 extracts the received address and data signals, and extracts the addres...

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Abstract

The invention discloses a system for increasing the number of valid display bits. The display system for increasing the number of the valid display bits mainly comprises an address / data receiving andprocessing module, a row and column driving control logic module, a DAC module, a data latch / driving module, an address decoding module, a pixel unit, a common electrode and a module for increasing the effective display digits. The display time in the frame period of the pixel unit is controlled through the digital data information, so that the adjustment of the gray-scale brightness is realized.

Description

technical field [0001] The invention relates to the technical field of digital pixel driving, in particular to a novel system for increasing effective display digits. Background technique [0002] With the continuous development of micro-display products such as AR (Augmented Reality) and projection products, people begin to pay attention to the research on improving the performance of micro-display chips. Micro-display chips are mainly divided into micro-display technology and micro-display driving technology. Good driving technology, especially good pixel driving technology, can improve the display effect of micro-display chips. [0003] At present, pixel driving methods are mainly divided into two types: analog driving and digital driving. Analog-driven displays use analog signals to represent grayscale information of pixels, but analog signals are prone to noise, making it difficult to achieve high grayscale value accuracy. Digital drive mainly produces grayscale by mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/3208G09G3/36
CPCG09G3/20G09G3/2074G09G3/3208G09G3/3607G09G3/3611G09G2320/0271
Inventor 于钦杭陈弈星
Owner 南京芯视元电子有限公司
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