Cholesterol liquid display screen and combined cholesterol liquid display screen

Abstract

This invention discloses a cholesterol liquid crystal display screen and a combined cholesterol liquid crystal display screen. The upper electrode layer includes a first upper electrode group and a second upper electrode group, each comprising N parallel-arranged first data electrode lines and N parallel-arranged second data electrode lines. The lower electrode layer includes 2*M parallel-arranged scan electrode lines, where M and N are integers greater than 1, and M < N. A scanning IC sequentially applies a scan voltage from the Mth scan electrode line along a first direction to drive each scan electrode line, and simultaneously sequentially applies a scan voltage from the (M+1)th scan electrode line along a second direction to drive each scan electrode line. The second direction is opposite to the first direction. A data IC sequentially applies a data voltage to drive each first data electrode line and each second data electrode line.

Claims

1. A cholesteric liquid crystal display screen, comprising a liquid crystal driving module, a first substrate, a second substrate, and a lower electrode layer, an upper electrode layer, and a cholesteric liquid crystal layer disposed between the first substrate and the second substrate; wherein, The liquid crystal driving module includes at least one scanning IC and at least one data IC. The scanning IC is connected to the lower electrode layer, and the data IC is connected to the upper electrode layer. The upper electrode layer includes a first upper electrode group and a second upper electrode group, each including N parallel first data electrode lines and N parallel second data electrode lines, where N is an integer greater than 1. The lower electrode layer includes 2*M parallel scanning electrode lines, where M is an integer greater than 1 and M < N. The scanning electrode lines, the first data electrode lines, and the second data electrode lines form 2*M*N projection intersection points. The cholesteric liquid crystal layer includes a plurality of liquid crystal pixel regions corresponding to these projection intersection points. The scanning IC sequentially applies a scanning voltage from the Mth scanning electrode line along a first direction to drive each scanning electrode line, and simultaneously sequentially applies the scanning voltage from the (M+1)th scanning electrode line along a second direction to drive each scanning electrode line, where the second direction is opposite to the first direction. The data IC sequentially applies a data voltage to drive each of the first data electrode lines and each of the second data electrode lines.

2. The cholesterol liquid crystal display screen as claimed in claim 1, wherein the first data electrode lines are sequentially applied the data voltage in a direction driven in contrast to the second data electrode lines being sequentially applied the data voltage in a direction driven in contrast.

3. A cholesteric liquid crystal display screen, comprising a liquid crystal driving module, a first substrate, a second substrate, and a lower electrode layer, an upper electrode layer, and a cholesteric liquid crystal layer disposed between the first substrate and the second substrate; wherein, The liquid crystal driving module includes multiple scanning ICs and multiple data ICs. The scanning ICs are connected to the upper electrode layer, and the data ICs are connected to the lower electrode layer. The lower electrode layer includes a first lower electrode group and a second lower electrode group, each including 2*M parallel first data electrode lines and 2*M second data electrode lines, where M is an integer greater than 1. The upper electrode layer includes a first upper electrode group and a second upper electrode group, each including 2*N parallel first scanning electrode lines and 2*N second scanning electrode lines, where N is an integer greater than 1 and N < M. The first data electrode lines and the second data electrode lines, as well as the first scanning electrode lines and the second scanning electrode lines, together form 4*M*N projection intersection points. The cholesteric liquid crystal layer includes multiple liquid crystal pixel areas corresponding to these projection intersection points. The scanning ICs apply a scanning voltage from the Nth first scanning electrode line and the second scanning electrode line along a first direction to drive each of the first scanning electrode lines and the second scanning electrode lines. Simultaneously, the scanning voltage is applied from the (N+1)th first scanning electrode line and the second scanning electrode line along a second direction to drive each of the first scanning electrode lines and the second scanning electrode lines. The second direction is opposite to the first direction. The data ICs sequentially apply a data voltage along a third direction to drive each of the first data electrode lines and the second data electrode lines. Simultaneously, the data voltage is sequentially applied along a fourth direction to drive each of the first data electrode lines and the second data electrode lines. The fourth direction and the third direction are perpendicular to the first direction and the second direction, respectively.

4. The cholesterol liquid crystal display screen as claimed in claim 3, wherein the data IC sequentially applies the data voltage from the Mth first data electrode line and the second data electrode line along the third direction to drive each of the first data electrode lines and the second data electrode lines, and sequentially applies the data voltage from the M+1th first data electrode line and the second data electrode line along the fourth direction to drive each of the first data electrode lines and the second data electrode lines, the fourth direction being opposite to the third direction.

5. A combined cholesterol liquid crystal display screen, comprising a plurality of cholesterol liquid crystal display screens arranged in a plane and a control module, wherein each cholesterol liquid crystal display screen is a cholesterol liquid crystal display screen as described in any one of claims 1 to 4, and the control module is further connected to the liquid crystal driving module of each cholesterol liquid crystal display screen.

6. A combined cholesteric liquid crystal display screen, comprising a first cholesteric liquid crystal display screen, a second cholesteric liquid crystal display screen, and a control module arranged in a planar manner, wherein the first cholesteric liquid crystal display screen and the second cholesteric liquid crystal display screen have the same size and each has two long sides and two short sides, and are connected to each other by one of the short sides; the first cholesteric liquid crystal display screen and the second cholesteric liquid crystal display screen each include a liquid crystal driving module, a first substrate, a second substrate, and a lower electrode layer, an upper electrode layer, and a cholesteric liquid crystal layer disposed between the first substrate and the second substrate; the control module is further connected to the liquid crystal driving module of the first cholesteric liquid crystal display screen and the second cholesteric liquid crystal display screen; wherein... The liquid crystal driving module includes at least one scanning IC and at least one data IC. The scanning IC is connected to the lower electrode layer, and the data IC is connected to the upper electrode layer. The lower electrode layer includes M parallel first electrode lines, where M is an integer greater than 1. The upper electrode layer includes N parallel second electrode lines, where N is an integer greater than 1 and N < M. The first electrode lines and the second electrode lines form M*N projection intersection points. The cholesteric liquid crystal layer includes a plurality of liquid crystal pixel areas corresponding to the projection intersection points. The scanning IC of the first cholesteric liquid crystal display screen sequentially applies a scanning voltage from the Mth first electrode line along a first direction to drive each of the first electrode lines. The scanning IC of the second cholesteric liquid crystal display screen sequentially applies the scanning voltage from the 1st first electrode line along a second direction to drive each of the first electrode lines. The second direction is opposite to the first direction. The data ICs of the first and second cholesteric liquid crystal display screens sequentially apply a data voltage to drive each of the second electrode lines.

7. The combined cholesterol liquid crystal display screen as claimed in claim 6, wherein the direction in which the second electrode lines of the first cholesterol liquid crystal display screen are sequentially driven by the data voltage is opposite to the direction in which the second electrode lines of the second cholesterol liquid crystal display screen are sequentially driven by the data voltage.

8. A combined cholesteric liquid crystal display screen, comprising a first cholesteric liquid crystal display screen, a second cholesteric liquid crystal display screen, and a control module arranged in a planar manner, wherein the first cholesteric liquid crystal display screen and the second cholesteric liquid crystal display screen have the same size and each has two long sides and two short sides, and are connected to each other by one of the long sides; the first cholesteric liquid crystal display screen and the second cholesteric liquid crystal display screen each include a liquid crystal driving module, a first substrate, a second substrate, and a lower electrode layer, an upper electrode layer, and a cholesteric liquid crystal layer disposed between the first substrate and the second substrate; the control module is further connected to the liquid crystal driving module of the first cholesteric liquid crystal display screen and the second cholesteric liquid crystal display screen; wherein... The liquid crystal driving module includes at least one scanning IC and at least one data IC. The scanning IC is connected to the upper electrode layer, and the data IC is connected to the lower electrode layer. The lower electrode layer includes M parallel first electrode lines, where M is an integer greater than 1. The upper electrode layer includes N parallel second electrode lines, where N is an integer greater than 1 and N < M. The first electrode lines and the second electrode lines form M*N projection intersection points. The cholesteric liquid crystal layer includes a plurality of liquid crystal pixel areas corresponding to the projection intersection points. The scanning IC of the first cholesteric liquid crystal display screen sequentially applies a scanning voltage along a first direction from the Nth second electrode line to drive each of the second electrode lines. The scanning IC of the second cholesteric liquid crystal display screen sequentially applies the scanning voltage along a second direction from the 1st second electrode line to drive each of the second electrode lines. The second direction is opposite to the first direction. The data ICs of the first and second cholesteric liquid crystal display screens sequentially apply a data voltage to drive each of the first electrode lines.

9. A combined cholesteric liquid crystal display screen, comprising a first cholesteric liquid crystal display screen, a second cholesteric liquid crystal display screen, a third cholesteric liquid crystal display screen, a fourth cholesteric liquid crystal display screen arranged in a plane, and a control module. The first, second, third, and fourth cholesteric liquid crystal display screens have the same size, each having two long sides and two short sides. The first and second cholesteric liquid crystal display screens are interconnected by a long side, the second and third cholesteric liquid crystal display screens are interconnected by a short side, the third and fourth cholesteric liquid crystal display screens are interconnected by a long side, and the fourth cholesteric liquid crystal display screen is interconnected by a short side. The first, second, third, and fourth cholesteric liquid crystal displays each include a liquid crystal driving module, a first substrate, a second substrate, and a lower electrode layer, an upper electrode layer, and a cholesteric liquid crystal layer disposed between the first and second substrates. The control module is further connected to the liquid crystal driving module of the first, second, third, and fourth cholesteric liquid crystal displays. The lower electrode layer includes M parallel first electrode lines, where M is an integer greater than 1. The upper electrode layer includes N parallel second electrode lines, where N is an integer greater than 1 and N < M. The horizontal projections of the second electrode lines and the first electrode lines are perpendicular to each other, thereby forming M*N projection intersection points. The cholesteric liquid crystal layer includes a plurality of liquid crystal pixel areas corresponding to the projection intersection points. The liquid crystal driving module includes at least one scanning IC and at least one data IC. The scanning IC is connected to the upper electrode layer, and the data IC is connected to the lower electrode layer. The scanning ICs of the first and fourth cholesterol liquid crystal displays sequentially apply a scanning voltage from the Nth second electrode line along a first direction to drive each of the second electrode lines. The scanning ICs of the second and third cholesterol liquid crystal displays sequentially apply the scanning voltage from the 1st second electrode line along a second direction to drive each of the second electrode lines, the second direction being opposite to the first direction. The data ICs of the first and second cholesterol liquid crystal displays sequentially apply a data voltage along a third direction to drive each of the first electrode lines. The data ICs of the third and fourth cholesterol liquid crystal displays sequentially apply the data voltage along a fourth direction to drive each of the first electrode lines.

10. The combined cholesterol liquid crystal display screen as claimed in claim 9, wherein the data IC of the first cholesterol liquid crystal display screen and the second cholesterol liquid crystal display screen are sequentially applied with the data voltage from the Mth first electrode line along the third direction, and the data IC of the third cholesterol liquid crystal display screen and the fourth cholesterol liquid crystal display screen are sequentially applied with the data voltage from the 1st first electrode line along the fourth direction, the fourth direction being opposite to the third direction.

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