# US 10,872,575 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,872,575 B2 - Document ID: US10872575B2 - Status: Granted - Kind: B2 - Application number: 16/371,112 - Filed: 2019-04-01 - Published: 2019-11-28 - Granted: 2020-12-22 - Earliest claimed: 2018-05-25 - Assignees: E Ink Holdings Inc. - Applicants: E Ink Holdings Inc. - Inventors: Jen-Yu Chang - Web page: https://patentgrep.com/patent/US10872575B2 ## CPC - G02F 1/1685: Operation of cells; Circuit arrangements affecting the entire cell - G09G 3/344: {based on particles moving in a fluid or in a gas, e.g. electrophoretic devices (electrophoretic devices per se G02F1/167)} - G02F 1/167: by electrophoresis - G02F 2203/60: Temperature independent - G09G 2320/041: Temperature compensation - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A display device includes a processor and a display panel. The processor is configured to output multiple display signals. The display panel includes multiple display units and multiple temperature sensors. The display units are electrically coupled to the processor and configured to receive the multiple display signals to provide a display screen. The temperature sensors are electrical coupled to the processor and configured to detect the temperature of different areas of the display panel so as to transmit multiple detection signals to the processor so that the processor adjusts at least one of the display signals. ## Claims ### Claim 1 A display device, comprising: a processor configured to output a plurality of display signals; and a display panel, comprising: an ink layer comprising a display medium, wherein the display medium comprises an electrophoretic fluid with a plurality of colored charged particles; a plurality of display units electrically coupled to the processor and configured to receive the plurality of display signals so as to provide a display screen; and a plurality of temperature sensors electrically coupled to the processor, wherein the plurality of temperature sensors are configured to detect temperatures of display areas in the display panel, and transmit a plurality of detection signals to the processor in an idle period accordingly, wherein the processor adjusts at least one of the plurality of display signals according to at least one of the plurality of detection signals, wherein the processor is configured to adjust a duration time of electric field generated by the plurality of display units for driving the plurality of colored charged particles in an update period following the idle period according to the plurality of detection signals, wherein when the processor determines that temperature of the display areas indicated by the plurality of detection signals is higher than a threshold value, the processor reduces the duration time of electric field generated by the plurality of display units in the update period for driving the plurality of colored charged particles, and when the processor determines that temperature of the display areas indicated by the plurality of detection signals is lower than a threshold value, the processor increase the duration time of electric field generated by the plurality of display units in the update period for driving the plurality of colored charged particles. ### Claim 2 (depends on 1) The display device of claim 1, wherein the display panel comprises: a substrate, the plurality of display units and the plurality of temperature sensors arranged on the substrate, wherein each of the plurality of display units comprises a pixel electrode respectively; and a protective layer, wherein the substrate is arranged on a first side of the ink layer and the protective layer arranged on a second side of the ink layer. ### Claim 3 (depends on 2) The display device of claim 2, wherein the plurality of the temperature sensors are arranged on a side of the substrate corresponding to the ink layer. ### Claim 4 (depends on 2) The display device of claim 2, wherein the plurality of display signals are configured to drive the plurality of display units. ### Claim 5 (depends on 4) The display device of claim 4, wherein the a plurality of colored charged particles includes a plurality of black charged particles and a plurality of white charged particles. ### Claim 6 (depends on 1) The display device of claim 1, wherein the plurality of temperature sensors are configured to detect a detection current of the display panel and generate the plurality of detection signals accordingly. ### Claim 7 (depends on 6) The display device of claim 6, wherein the processor comprises a conversion unit, the conversion unit is configured to convert the detection current from analog to digital. ### Claim 8 (depends on 1) The display device of claim 1, wherein the processor comprises a compensation unit, the compensation unit is configured to calculate a compensation data according to the at least one of the plurality of detection signals and adjusts the at least one of the plurality of display signals according to the compensation data. ### Claim 9 (depends on 1) The display device of claim 1, wherein the processor is configured to periodically output the plurality of display signals to the plurality of display units to update the display screen in an update period, and the processor is configured to receive the plurality of detection signals outputted by the plurality of temperature sensors in an idle period adjacent to the update period. ### Claim 10 (depends on 1) The display device of claim 1, wherein the temperature sensor is a current sensing resistor, a thermal resistor or a switching transistor.