33 results about "SCREEN FAILURE" patented technology

The present invention provides a method and system for operating the failure area of ​​the touch screen of an intelligent terminal. The method at least includes the following steps: setting the background monitoring service program as a boot service program, keeping it in the boot initialization file, and running in the background as a daemon process , to monitor the operation of the setting key; when the main thread of the background monitoring service program detects that the operation of the setting key conforms to the preset operation mode, the thread is opened, and a rectangular window pops up in the screen of the smart terminal; and, when the touch screen fails When the coordinate value of the center point of the area icon is between the minimum coordinate value and the maximum coordinate value of the screen, the icon and text in the failure area of ​​the touch screen can be operated. The present invention realizes the operation of the TP failure area by dynamically changing the horizontal or vertical coordinates of the center point of the icon in the TP failure area, so that the new coordinate value of the center point of the icon in the TP touch screen failure area is within the operable normal range, and the operation is simple and the cost is low. low, high efficiency.

The invention discloses a black screen detection method, a mobile terminal and a computer-readable storage medium. The black screen detection method includes the following steps: when a black screen failure is detected in the mobile terminal, the preset core process in the display service of the mobile terminal is acquired Generated monitoring result information; comparing the monitoring result information with preset information to generate a comparison result; determining the black screen fault type according to the comparison result. This solution sets a monitoring mechanism for the preset core process in the display service of the mobile terminal. When a black screen fault occurs on the mobile terminal, the black screen fault type is determined by obtaining the generated monitoring result information and comparing it with the preset information. It is convenient for after-sales personnel or developers to quickly and accurately locate the cause of the black screen according to the black screen fault type when detecting the cause of the black screen of the mobile terminal, which greatly reduces labor costs and time costs.

The invention provides a picture detection method and a picture detection device, which are used to judge whether there is a bad picture in the picture data displayed by the display panel, so as to achieve the purpose of improving the picture quality. The method for detecting a picture includes: collecting picture data that needs to be displayed by a display panel; and judging whether the picture data will produce a bad picture according to preset detection conditions of bad picture types.

The invention relates to an optical multi-point touch screen device and a method applicable to vibration and damp environment. The device comprises a screen, a touch screen frame and trapezoidal box-shaped components, wherein the touch screen frame is arranged on the outer edges of the screen, the trapezoidal box-shaped components are arranged at four corners of the screen frame, a linear array image sensor plate and a convex cylindrical lens are arranged in the components, and the sensor plate is connected with a driving plate through a connector. The optical multi-point touch screen device and the method have the advantages that the device is applicable to the modification of a plane large-screen display into a multi-point touch display, the problems of durability, light transmission rate and screen size limitation of a resistance screen and a capacitance screen are solved, the multi-point identification positioning method can be used for obtaining the center coordinates and the occupied regions of each touch point, in addition, ghost points can be effectively eliminated, the imaging characteristics of the convex cylindrical lens structure are adopted so that certain tolerance is realized on the vibration, in addition, the installation precision requirement on the structure is low, the imaging distortion is solved by adopting the optical calibration, the problems of high center precision and low peripheral precision of the screen of the triangular positioning method are avoided, a relative humidity sensor and electric heating glass are adopted, and the problem of optical touch screen failure caused by condensation in damp environment is avoided.

The invention relates to a working method for reworking and rescuing an integrated circuit assembly. The integrated circuit assembly is packaged in a Ball Grid Array (BGA) manner, which includes: (a) firstly using a The initial inspection step is to screen out damaged and failed integrated circuit components, (b) bake the target integrated circuit components at a predetermined temperature for a predetermined time, (c) remove at least one solder ball of the integrated circuit components , and (d) re-soldering the solder-removed portions of the integrated circuit assembly.

The invention relates to a method for detecting failure of a static pressure difference of a dust-collection filter screen based on temperature correction. The method comprises the following steps: establishing a dust-collection filter screen failure detection experiment system, namely arranging a static pressure difference collection module upper computer of the dust-collection filter screen and a fault warning device in a purifier system; establishing a data collecting and recording system; enabling an air purifier to continuously work in an experiment environment, simultaneously monitoring the static pressure difference P(k) of the dust-collection filter screen of an air purifier system and an environment temperature T(k) in real time by virtue of the upper computer, and recording the total operational duration of the air purifier, wherein k represents a current operation moment. By utilizing the method based on the temperature correction, the change of the temperature correction of a same base temperature reference value can be estimated on line, so that the online fault diagnosis of the dust-collection filter screen of the air purifier system is realized. Finally, the method is applied to the failure detection of the dust-collection filter screen of the subsequent relevant air purifier system, and a correction method is finished in a programming manner, so that the hardware cost of the product is lowered, and the flexibility, reliability and accuracy of the system are improved.

Controlling and reconfiguring a display system that includes at least two screens that are installed in a cockpit of an aircraft in case of a failure of one of the screens. For example, a control unit of the display system may detect occurrence of a screen failure. In response to detecting the screen failure, the control unit may determine whether a critical flight relevant information has not been displayed on an operational screen during a predetermined period of time, and in response to determining that the critical flight relevant information has not been displayed on the operational screen during the predetermined period of time, command display of a message on the operational screen that suggests displaying the critical flight relevant information on the operational screen.

The invention discloses a method for solving the failure of a capacitive screen and an abnormal detection circuit of the capacitive screen. The method includes: setting an abnormal signal output circuit, receiving a pulse signal output by the capacitive screen to the abnormal signal output circuit; The abnormal signal output circuit delays and reverses the pulse signal and outputs it to the HOST CPU; the CPU receives the reversed signal, judges whether an abnormality occurs, and when an abnormality occurs, performs interrupt processing to restore the capacitive screen. The invention also provides a capacitive screen abnormality detection circuit. By adding some circuits on the touch screen or the main board, it is detected whether the capacitive screen is abnormal. If an abnormality occurs, the capacitive screen is restarted through the HOST CPU to restore normal operation, thereby occupying very little system resources and reducing the power consumption of the whole machine. The battery will basically not increase the burden, and the judgment and restart process is very short, the user basically does not feel it, and will not affect the user experience.