Abstract: A regulating method and a regulating apparatus for a driving voltage of a display module, wherein the method comprises: applying, to the display module, a gamma voltage pair corresponding to a grayscale to be tested, selecting a test image and maintaining the test image for a predetermined time duration (11); switching to a predetermined grayscale image that matches the grayscale to be tested, regulating a common voltage of the display module, and recording a direction and a magnitude of regulation of the common voltage (12); and restoring the common voltage to a magnitude before the regulation, and regulating the first gamma voltage and the second gamma voltage according to the recorded direction and magnitude of regulation of the common voltage (13). Regulation accuracy of the driving voltage can be improved, workload for debugging can be reduced and work efficiency can be improved.
Abstract: Provided is a high image quality display device including a touch panel. A display device includes a substrate; a display region provided on the substrate, the display region including an array of a plurality of pixels each including at least one light-emitting element; a scanning line driving circuit; a video signal driving circuit; a common electrode commonly provided for the plurality of light-emitting elements, the common electrode being divided into a plurality of divided areas extending in a radial direction in the display region; and a voltage switch circuit connected with the plurality of divided areas of the common electrode, the voltage switch circuit selectively connecting each of the plurality of divided areas of the common electrode with a reference power supply circuit supplying a constant potential or a scanning circuit detecting a touch position in the display region.
Abstract: A display apparatus includes: a timing control block which outputs image data based on external image data and control signals, and generates data and gate-side control signals based on the external control signal; a source drive block which converts the image data into a data voltage based on the data control signal; a low frequency detection block which detects a low power drive period based on the external control signal and generates a power control signal, a state of which is determined based on a result of the detection; an integrated chip which receives first and second drive voltages and includes a first switch block that turns off a circuit of the source drive block based on the power control signal during the low power drive period; a gate drive circuit which generates a gate signal based on a gate control signal from the integrated chip; and a display panel.
Type:
Grant
Filed:
June 30, 2015
Date of Patent:
August 6, 2019
Assignee:
SAMSUNG DISPLAY CO., LTD.
Inventors:
Suhyeong Park, Kyoungwon Lee, Hoyong Jung, Cheolwoo Park, Bonghyun You
Abstract: A pixel array includes a plurality of repeating units. Each repeating unit includes three first color sub-pixels, four second color sub-pixels, and three third color sub-pixels. The size of one of the first color sub-pixels is greater than the size of each of the other two first color sub-pixels. The sizes of the four second color sub-pixels are the same. The size of one of the third color sub-pixels is greater than the size of each of the other two third color sub-pixels.
Abstract: A password generation method of a touch terminal includes receiving a touch input on a display from a user, obtaining touch information which obtains at least one of location information, color information or touch time interval information of a point where a touch is input, receiving account information, and combining the touch information with the account information to generate a password.
Abstract: Various approaches to touch sensing systems are disclosed As an example, a touch sensing system is disclosed that includes: an optical beam source to provide an optical beam; a pair of controllable beam deflectors comprising at least first and second beam deflectors, wherein the first beam deflector is configured to deflect the optical beam through a first angle towards a touch sensing region, and wherein the second beam deflector is configured to deflect scattered light from an object in the touch sensing region through a second angle; a detector, in particular a detector array; and an imaging system to image the deflected scattered light from the second beam deflector onto the detector array. The first and second beam deflectors are controlled in tandem to scan the touch sensing region.
Type:
Grant
Filed:
August 13, 2013
Date of Patent:
May 28, 2019
Assignee:
Light Blue Optics Ltd.
Inventors:
Adrian James Cable, Paul Richard Routley, Euan Christopher Smith, Gareth John McCaughan, Peter William Tudor Mash
Abstract: Disclosed are a control circuit and a noise removing method for a touch screen. The present invention includes technology for performing differential sensing on the outputs of two adjacent sensing lines of a touch screen panel and integrating a differential sensing signal to filter noises. The control circuit and noise filtering according to the present invention may remove the display noise, tri-wave lamp noise having a predetermined frequency, 60 Hz noise and charger noise caused by battery charging that might affect the two adjacent sensing lines.
Abstract: An organic light emitting display device and a method of repairing the device are discussed. According to an embodiment, the device includes a display panel having pixels, each including an OLED in every pixel area defined as scan and data lines intersect with each other and having a repair structure in at least one of horizontal and vertical directions between adjacent pixels by one or more repair lines; a timing controller configured to generate compensation data when a dark spot is generated in one of the plurality of pixels of the display panel, and adjust a magnitude of image data according to the compensation data; and a data driver configured to adjust a magnitude of a data voltage according to the image data adjusted in magnitude, and output the data voltage adjusted in magnitude to the data lines.
Type:
Grant
Filed:
December 28, 2015
Date of Patent:
April 30, 2019
Assignee:
LG DISPLAY CO., LTD.
Inventors:
YoonJu Lee, JeongHwan Kim, SooHong Choi, HongJae Shin, KwangMo Park, JaYeon Song
Abstract: A method and system for driving an active matrix display is provided. The system includes a drive circuit for a pixel having a light emitting device. The drive circuit includes a drive transistor for driving the light emitting device. The system includes a mechanism for adjusting the gate voltage of the drive transistor.
Abstract: A method and apparatus of detecting user initiated movement by an input element handled by a user is disclosed. The method may include performing a calibration procedure that is initiated by the user via a physical movement performed by the user. The method may also include positioning at least one sensor to dynamically adjust a size of an effective workspace range capable of detecting the user's movement of the input element.
Abstract: A method and system for driving an active matrix display is provided. The system includes a drive circuit for a pixel having a light emitting device. The drive circuit includes a drive transistor for driving the light emitting device. The system includes a mechanism for adjusting the gate voltage of the drive transistor.
Abstract: In a case where it is determined that a swipe operation having a swipe amount equal to or greater than a predetermined amount is performed by a user when one of a plurality of objects included in a page is displayed as a main object on a screen, one of other objects to be displayed when the swipe operation is performed is estimated as a next main object and displayed on the screen based on the swipe operation.