Color scan array with addressing circuitry
First Claim
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1. A matrix-driven color scan array comprising:
- (a) a linear arrangement of p imaging pixel elements extending along a given length direction,(b) each of said imaging pixel elements comprising a set of s sub-pixel elements each representing different color components,(c) each sub-pixel element comprising a photo-sensor element and a switch connected to the photo-sensor element and having at least first and second electrodes which must be selected to address the sub-pixel element,(d) said sub-pixel elements being arranged in s rows extending parallel to the given length direction,(e) the sub-pixel elements of each set constituting one pixel element being arranged in parallel columns,(f) means associated with the sub-pixels elements in each row for rendering them sensitive to the same color component,(g) said sub-pixels elements along a row being subdivided into m/s groups of n sub-pixel elements,(h) means for interconnecting the first electrodes of each group of sub-pixel elements in a row to form m data line connection points,(i) means for interconnecting the second electrodes of each column of sub-pixel elements,(j) m data lines,(k) means for connecting each of the data line connection points to one of the m data lines,(l) n drive lines,(m) means for connecting the second electrode interconnection means of each column of sub-pixel elements of each group of sub-pixel elements to one of the n drive lines, whereby activation of each drive line will prepare all sub-pixel elements in one set of each group for selection, and activation of each data line will prepare all sub-pixel elements in the same row and in the same group for selection.
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Abstract
A color scan array for linear imaging employing a matrix of photo-sensor and thin-film transistor (TFT) elements aligned in parallel rows with each row representing the same color and sub-pixels of a linear array of pixels. The rows of sub-pixels are sub-divided into groups, with the TFT of each color group commonly connected to a data line, and with plural gate lines provided each connected to the corresponding TFTs of the sub-pixels of each group pixel. The result is a short, compact sensor with a relatively small number of crossings and thus reduced capacitance and increased responsivity.
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Citations
9 Claims
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1. A matrix-driven color scan array comprising:
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(a) a linear arrangement of p imaging pixel elements extending along a given length direction, (b) each of said imaging pixel elements comprising a set of s sub-pixel elements each representing different color components, (c) each sub-pixel element comprising a photo-sensor element and a switch connected to the photo-sensor element and having at least first and second electrodes which must be selected to address the sub-pixel element, (d) said sub-pixel elements being arranged in s rows extending parallel to the given length direction, (e) the sub-pixel elements of each set constituting one pixel element being arranged in parallel columns, (f) means associated with the sub-pixels elements in each row for rendering them sensitive to the same color component, (g) said sub-pixels elements along a row being subdivided into m/s groups of n sub-pixel elements, (h) means for interconnecting the first electrodes of each group of sub-pixel elements in a row to form m data line connection points, (i) means for interconnecting the second electrodes of each column of sub-pixel elements, (j) m data lines, (k) means for connecting each of the data line connection points to one of the m data lines, (l) n drive lines, (m) means for connecting the second electrode interconnection means of each column of sub-pixel elements of each group of sub-pixel elements to one of the n drive lines, whereby activation of each drive line will prepare all sub-pixel elements in one set of each group for selection, and activation of each data line will prepare all sub-pixel elements in the same row and in the same group for selection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification