PIXEL DRIVING CIRCUIT AND ITS DRIVING METHOD, ARRAY SUBSTRATE, TRANSFLECTIVE DISPLAY APPARATUS
First Claim
1. :
- A pixel driving circuit, comprising;
a plurality of pixels arranged in a matrix;
gate lines located between two adjacent rows of the pixels, at least one of the pixels comprising a light touch module which comprises;
a photosensitive unit which senses the light intensity and produces an electrical signal carrying the light intensity information;
a signal reading unit connected with the photosensitive unit, the signal reading unit being controlled by the gate lines, being turned on under the driving of the gate lines, and reading the electrical signal from the photosensitive unit;
an amplifier connected with the signal reading unit, the amplifier acquiring the electrical signal from the signal reading unit and amplifying the electrical signal;
a processor connected with the amplifier, the processor being configured to acquire the electrical signal amplified at the current time from the amplifier, obtain the change amount of the electrical signal amplified at the current time relative to the electrical signal amplified at a previous time, compare the change amount with a threshold of the change of the electrical signal, acquire the position information of the pixel where the light touch module is located when the change amount is greater than the threshold of the electrical signal change, and take the position information as the touch position, the threshold of the change of the electrical signal and the electrical signal amplified at the previous time being stored in the processor.
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Accused Products
Abstract
There is disclosed a pixel driving circuit and its driving method, an array substrate, a transflective display apparatus. At least one of the pixels of the pixel driving circuit includes a light touch module (10) which comprises: a photosensitive unit (101) which senses the light intensity and produces an electrical signal carrying the light intensity information; a signal reading unit (102) connected with the photosensitive unit and reading the electrical signal from there; an amplifier (103) connected with the signal reading unit (102) and amplifying the electrical signal acquired therefrom; and a processor (104) connected with the amplifier (103), having a threshold of the change of the electrical signal and the electrical signal amplified at a previous time stored therein, and taking the acquired position information of the pixel where the light touch module (10) is located as the touch position when the change amount of the electrical signal amplified at a current time relative to the electrical signal amplified at the previous time acquired from the amplifier (103) is greater than the threshold. The driving circuit and the driving method provided in the present disclosure cause the array substrate and the transflective display apparatus applying the both to realize the light touch function on the basis of realizing the display function.
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Citations
20 Claims
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1. :
- A pixel driving circuit, comprising;
a plurality of pixels arranged in a matrix;
gate lines located between two adjacent rows of the pixels, at least one of the pixels comprising a light touch module which comprises;a photosensitive unit which senses the light intensity and produces an electrical signal carrying the light intensity information; a signal reading unit connected with the photosensitive unit, the signal reading unit being controlled by the gate lines, being turned on under the driving of the gate lines, and reading the electrical signal from the photosensitive unit; an amplifier connected with the signal reading unit, the amplifier acquiring the electrical signal from the signal reading unit and amplifying the electrical signal; a processor connected with the amplifier, the processor being configured to acquire the electrical signal amplified at the current time from the amplifier, obtain the change amount of the electrical signal amplified at the current time relative to the electrical signal amplified at a previous time, compare the change amount with a threshold of the change of the electrical signal, acquire the position information of the pixel where the light touch module is located when the change amount is greater than the threshold of the electrical signal change, and take the position information as the touch position, the threshold of the change of the electrical signal and the electrical signal amplified at the previous time being stored in the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- A pixel driving circuit, comprising;
Specification