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Color LCOS (Liquid Crystal on Silicon) display chip and drive control method thereof

A display chip, color technology, used in static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of complex circuit structure, high cost of the whole machine, high power consumption of the whole machine, reduce weight and space volume, The effect of saving production cost and reducing power consumption of the whole machine

Inactive Publication Date: 2010-12-15
SHENZHEN YANGTZE LIVETECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to realize more diverse and gorgeous functions, the display driving circuit of the existing color LCOS display adopts IC (Integrated Circuit, integrated circuit) chips of various types of functions, mainly including image decoding chip, display driving signal control chip, configuration Single-chip microcomputer chips, display drive power amplifier op-amp modules, multi-power supply modules, and passive configuration electronic components, etc., the circuit structure of these chips is relatively complicated, which leads to high cost of the whole machine, high power consumption of the whole machine and limited space for the whole machine. Huge size; and, when using video signal non-linear correction chip, display drive signal control chip, it will also increase the power consumption of the whole machine

Method used

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  • Color LCOS (Liquid Crystal on Silicon) display chip and drive control method thereof
  • Color LCOS (Liquid Crystal on Silicon) display chip and drive control method thereof
  • Color LCOS (Liquid Crystal on Silicon) display chip and drive control method thereof

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Embodiment 1

[0035] In order to reduce the cost of the whole machine, reduce the power consumption of the whole machine, and reduce the size of the space of the whole machine, the present invention provides a color LCOS display chip, see figure 1 , the color LCOS display chip, including: 0V power supply arrangement circuit 1 and the ground wire pad 15 connected to the 0V power supply arrangement circuit 1, RGB input temporary register 2 and RGB data input pad connected to the RGB input temporary register 2 16. Non-linear correction table code finder 3, decoder 4, multi-potential generator 5 and reference potential pad 17 connected to multi-potential generator 5, serial two-wire circuit 6 and serial two-wire circuit 6’s serial line pad 18, clock buffer 7 and RGB clock pad 19 connected to clock buffer 7, RGB synchronous clock generator 8, horizontal synchronous clock generator 9, vertical synchronous clock generator 10, charge pump 11. The 3.3V power supply finishing circuit 12 and the 3.3V ...

Embodiment 2

[0047] In order to reduce the cost of the whole machine, reduce the power consumption of the whole machine, and reduce the size of the space of the whole machine, the present invention provides a driving control method for a color LCOS display chip, see Figure 6 , the method includes the following steps:

[0048] 101: After the ground pad 15 is connected to the ground wire, the 3.3V power supply pad 20 is connected to the 3.3V power supply, and the reference potential pad 17 is connected to the reference power supply, the state machine scheduler 13 is started;

[0049] 102: State machine scheduler 13 starts charge pump 11 to output 15V voltage to 15V power line 34, starts 0V power supply line 35 to output 0V voltage, starts 3.3V power line 36 to output 3.3V voltage to 3.3V power line 36 V voltage, start clock buffer 7 to output clock signal to clock line 29, start multi-potential generator 5 to output reference reference potential to multi-potential reference power line 27, s...

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Abstract

The invention discloses a color LCOS (Liquid Crystal on Silicon) display chip and a drive control method thereof, relating to the field of display chips. High-cost dedicated chips, such as video signal nonlinear correction chips used in a conventional control drive circuit, display drive signal control chips and the like, are discarded through the structure design and the drive control method of the display chip. Moreover, multiple systems are integrated on one chip, a PCB (Printed Circuit Board) required by multisystem chip combination is omitted, and thus, the production cost is greatly saved. Because the quantity of integrated circuit chips is reduced and the PCB is omitted, the weight and the space volume of the control drive circuit are reduced. Because the nonlinear correction chips and the display drive signal control chips are not used, the power consumption of the complete machine is reduced. A state machine scheduler is used as a core digital signal processing module, voltage coding values can be properly modified according to different nonlinear characteristics of all liquid crystal materials to obtain the optimal nonlinear correction performance, and the generality of the chip is enhanced.

Description

technical field [0001] The invention relates to a display chip, in particular to a color LCOS (Liquid Crystal On Silicon, liquid crystal on silicon) display chip and a driving control method thereof. Background technique [0002] The rapidly rising portable mobile communication and wireless display products in recent years have an increasing demand for color LCOS displays. The inherent advantages of color LCOS displays determine the development prospects of mobile display products. In order to realize more diverse and gorgeous functions, the display driving circuit of the existing color LCOS display adopts IC (Integrated Circuit, integrated circuit) chips of various types of functions, mainly including image decoding chip, display driving signal control chip, configuration Single-chip microcomputer chips, display drive power amplifier op-amp modules, multi-power supply modules, and passive configuration electronic components, etc., the circuit structure of these chips is rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/20
CPCG09G5/008G09G2310/0235G09G2330/021G09G3/3611G09G2320/0276G09G2370/08G09G3/36G09G2330/00
Inventor 代永平董续怀范伟范义
Owner SHENZHEN YANGTZE LIVETECH