| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 349072000 | Detector of liquid crystal temperature | 13 |
| 20080303984 | LIQUID CRYSTAL DISPLAY DEVICE CAPABLE OF LOW TEMPERATURE USE - A liquid crystal display device comprises: a liquid crystal display element comprising a pair of glass substrates facing to each other, transparent electrode patterns, each transparent electrode pattern being formed on a facing surface of each one of said pair of glass substrates film structures, each film structure including an oriented film and being formed on each one of said pair of glass substrates with covering said transparent electrode, and a liquid crystal layer held between the pair of glass substrates; and a light source that can radiate near infrared rays to said liquid crystal display element, and wherein at least one of said liquid crystal layer and said film structures include near infrared ray absorption material. A response time of the liquid crystal display device can be improved at a low temperature. | 12-11-2008 |
| 20130057808 | LIQUID CRYSTAL DEVICE, TEMPERATURE DETECTION METHOD, AND ELECTRONIC APPARATUS - A liquid crystal device including a pair of substrates that are provided opposite to each other with a liquid crystal layer being disposed therebetween, a pair of electrodes provided for each intersection of a plurality of scanning lines and a plurality of data lines, the pair of electrodes driving the liquid crystal layer, a driving circuit that applies a driving voltage to the pair of electrodes, an electric current detection element that detects a value corresponding to an electric current that flows in the liquid crystal layer when the driving voltage is applied, and a temperature information output circuit that outputs temperature information of the liquid crystal layer based on the value corresponding to the electric current. | 03-07-2013 |
| 20100033654 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a panel, a heater, and a temperature detector. The panel includes substrates electrodes and liquid crystal. The electrodes and the liquid crystal are disposed between the substrates. The heater has a transparent heating member, and the heating member emits heat by being supplied with electricity. At least a part of the heating member of the heater is located to overlap with a display area of the panel in a thickness direction of the substrates. A temperature detecting portion of the temperature detector and the heating member of the heater are located adjacent to each other. | 02-11-2010 |
| 20090273739 | Active Matrix Liquid Crystal Device - In one embodiment of the present invention, an active matrix liquid crystal device includes an active matrix substrate and a counter electrode substrate separated by a layer of liquid crystal material. A temperature sensing capacitor includes electrodes on the substrates separated by the liquid crystal layer, which thus forms the dielectric of the capacitor. A reference capacitor and a calibration capacitor are also provided and have nominally the same capacitance. These capacitors form part of charge-transfer capacitance measuring branches within a sample/hold circuit. During a calibration cycle, the sample/hold circuit provides a signal dependent on the difference between the capacitances of the calibration capacitor and the reference capacitor and this is supplied to an analog/digital converter, which forms a reference voltage. During subsequent parts of the measurement cycle, the converter converts the output of the sample/hold circuit using the reference voltage in order to improve the accuracy of measurement of the liquid crystal capacitor, and hence the temperature of the liquid crystal material. This temperature measurement may be used, for example, to compensate the AMLCD for the effects of temperature variation in the liquid crystal properties. | 11-05-2009 |
| 20100014028 | DISPLAY PANEL AND DISPLAY DEVICE - A liquid crystal panel comprises a temperature sensor ( | 01-21-2010 |
| 20100271570 | FLAT PANEL DISPLAY HAVING AN EMI SHIELD AND THERMAL SENSORS - A flat panel display having a black mask EMI layer isolated from Vcom and tied to zero potential. The flat panel display has an integral metal heater layer and thermal sensor that are in close proximity to the liquid crystals to provide efficient heating and temperature sensing. | 10-28-2010 |
| 20100245721 | LIQUID CRYSTAL ANTI-FREEZE METHOD AND LIQUID CRYSTAL MODULE USING THE SAME - A liquid crystal module comprises at least a liquid crystal panel with a display side and a liquid crystal side corresponding to each other, wherein at least one portion of the liquid crystal side is a heating portion, such that the heating portion can be driven to heat the liquid crystal side when the temperature of the environmental is under a liquid crystal working temperature. In addition, a liquid crystal anti-freeze method for the liquid crystal module is disclosed. | 09-30-2010 |
| 20080246903 | Liquid crystal display - A liquid crystal display (LCD) which includes a liquid crystal panel and a temperature-measurement apparatus. The temperature-measurement apparatus includes a temperature sensor which includes a variable-resistance element having a resistance that varies according to the temperature of the liquid crystal panel and a fixed-resistance element connected in series to the variable-resistance element, divides a first input voltage, and outputs a first temperature-dependent voltage that varies according to a temperature of the liquid crystal panel. A voltage divider which divides a second input voltage and outputs a reference voltage is provided. A differential amplifier receives at a first input the first temperature-dependent voltage and receives at a second input the reference voltage and amplifies a difference between the first temperature-dependent voltage and the reference voltage, and provides at an output a second temperature-dependent voltage. | 10-09-2008 |
| 20080309851 | FLAT LIGHT SOURCE UNIT, METHOD FOR MANUFACTURING THE SAME, AND BACKLIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A flat light source unit includes a discharge tube including discharge channels and partitions formed between the discharge channels, a main electrode portion formed at first and second ends of the discharge channels, a sub-electrode portion connected to the main electrode portion, and a thermistor connected between the main electrode portion and the sub-electrode portion and having a resistance value which changes depending on temperature. There are also provided a method for manufacturing the flat light source unit, and a backlight assembly and a liquid crystal display (“LCD”) having the flat light source unit. | 12-18-2008 |
| 20120176569 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a panel, a heater, and a temperature detector. The panel includes substrates, electrodes and liquid crystal. The electrodes and the liquid crystal are disposed between the substrates. The heater has a transparent heating member, and the heating member emits heat by being supplied with electricity. At least a part of the heating member of the heater is located to overlap with a display area of the panel in a thickness direction of the substrates. A temperature detecting portion of the temperature detector and the heating member of the heater are located adjacent to each other. | 07-12-2012 |
| 20090021670 | Display Device - A TFT element for ambient light detection and a TFT element for temperature detection are connected in series. In a first period, a first switch element is off, and a second switch element is at a hi side, so that a threshold voltage of the TFT element for temperature detection is detected. In a second period, a first switch element is on, and a second switch element is at a low side, so that temperature is detected. In a third period, a first switch element is on, and a second switch element is at a hi side, so that ambient light is detected. An input voltage and a control voltage to each of the TFT elements are set by a voltage controller provided in a drive circuit based on the threshold voltage. | 01-22-2009 |
| 20090021669 | DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus displays an image in a normal driving mode at a low temperature where a response speed of a liquid crystal becomes lower than a critical value, and displays the image in an impulsive driving mode at a higher temperature where the response speed of the liquid crystal becomes higher than the critical value. | 01-22-2009 |
| 20120229733 | LIQUID CRYSTAL DISPLAY DEVICE - On a liquid crystal panel, plural areas whose number is larger than that of temperature sensors are defined. In a memory, temperature relation information representing a relation between an output value of a temperature sensor and a temperature of each of the plural areas is stored. A controller acquires the output value of the temperature sensor and estimates, based on the temperature relation information and the acquired output value, the temperature of each of the plural areas. According to this configuration, the temperature of each of the plural areas defined on the liquid crystal panel can be obtained with a small number of temperature sensors. | 09-13-2012 |
